VX-FT21 KL SERVICE MANUAL INTEGRATED COLOR TV/STEREO VIDEO CASSETTE RECORDER BASIC TAPE MECHANISM : OVD-6S SPECIFICATIONS POWER REQUIREMENTS ............ 230V AC, 50Hz POWER CONSUMPTION .............. 82W Standby 6W WEIGHT ......................................... Approx.26.5 kg (58.4 lbs.) DIMENSIONS ................................. 574 mm (W) x 489 mm (D) x 502 mm (H) (22 5/8 x 19 3/8 x 19 7/8 in.) PICTURE TUBE ............................. 21 in. (50.8 cm “V”), 90 degree deflection TUNER SYSTEM ....
TABLE OF CONTENTS SPECIFICATIONS .............................................................................................................................................................. TABLE OF CONTENTS ...................................................................................................................................................... SERVICING NOTICES ON CHECKING .........................................................................................................................
SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual. Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc.
DISASSEMBLY INSTRUCTIONS 1-3: TV/VCR BLOCK (Refer to Fig. 1-3) 1. REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS 1. Remove the 2 screws 1. 2. Disconnect the following connectors: (CP353, CP502, CP503, CP504, CP755 and CP4202). 3. Unlock the support 2. 4. Remove the TV/VCR Block in the direction of arrow. 1-1: BACK CABINET (Refer to Fig. 1-1) 1. Remove the 2 screws 1. 2. Remove the 4 screws 2. 3. Remove the 2 screws 3 which are used for holding the Back Cabinet. 4. Remove the AC cord from the AC cord hook 4.
DISASSEMBLY INSTRUCTIONS 1-5: DECK SHIELD PLATE (Refer to Fig. 1-5) 1 1. Remove the 2 screws 1. 2. Remove the 2 screws 2. 3. Remove the Deck Shield Plate in the direction of arrow (A). 4. Remove the screw 3. 5. Remove the Shield Plate Bottom in the direction of arrow (B). 1 1 Deck Chassis Deck Shield Plate 1 1 (A) Syscon PCB Fig. 1-6 1-7: JACK PLATE AND SYSCON PCB (Refer to Fig. 1-7) 1. Remove the screw 1. 2. Remove the Syscon PCB in the direction of arrow (A). 3. Remove the 2 screws 2. 4.
DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DECK PARTS NOTE 2-1: TOP BRACKET (Refer to Fig. 2-1) When you install the Tape Guide L, install as shown in the circle of Fig. 2-3-B. (Refer to Fig. 2-3-B) 1. Remove the 2 screws 1. 2. Slide the 2 supports 2 and remove the Top Bracket. NOTE Tape Guide L When you install the Top Bracket, install the screw (1) first, then install the screw (2). REC Lever (2) (1) 1 1 Top Bracket Top Bracket • The REC Lever is not installed on the Video Cassette Player. Fig.
DISASSEMBLY INSTRUCTIONS 2-6: LINK ASS'Y (Refer to Fig. 2-6) 2-9: TENSION ASS'Y (Refer to Fig. 2-9-A) 1. Set the Link Ass'y to the Eject position. 2. Remove the (A) side of the Link Ass'y first, then remove the (B) side. 1. Move the Inclined S Ass'y to the back side. 2. Remove the Tension Spring. 3. Unlock the support 1 and remove the Tension Arm Ass'y. 4. Remove the Tension Adjust. 5. Unlock the 2 supports 2 and remove the Tension Band Ass'y. 6. Unlock the support 3 and remove the Tension Holder. 7.
DISASSEMBLY INSTRUCTIONS 2-11: S REEL/T REEL (Refer to Fig. 2-11) NOTE 1. Remove the S Reel and T Reel. 2. Remove the 2 Polyslider Washers 1. 1. Do not touch the Pinch Roller. (Use gloves.) 2. When you install the Pinch Roller Block, install as shown in the circle of Fig. 2-12-B. (Refer to Fig. 2-12-B) NOTE 1. Take care not to damage the gears of the S Reel and T Reel. 2. The Polyslider Washer may be remained on the back of the reel. 3. Take care not to damage the shaft. 4.
DISASSEMBLY INSTRUCTIONS 2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y (Refer to Fig. 2-15) 1 Middle Gear 1. Unlock the support 1 and remove the AHC Ass'y. 2. Remove the 3 screws 2. 3. Remove the Cylinder Unit Ass'y. E-Ring Main Cam NOTE Pinch Roller Cam When you install the Cylinder Unit Ass'y, tighten the screws from (1) to (3) in order while pulling the Ass'y toward the left front direction. 2 Joint Gear P5 Cam AHC Ass'y Fig.
DISASSEMBLY INSTRUCTIONS 2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A) 2. When you install the Clutch Actuator, install as shown in the circle of Fig. 2-19-C. (Refer to Fig. 2-19-C) 1. Remove the E-Ring 1 and remove the Main Loading Gear. 2. Remove the Capstan Brake Spring. 3. Slide the Main Rod and remove the Capstan Brake Ass'y. 4. Remove the Main Rod, Tension Lever, Clutch Actuator, Idler Arm Ass'y. 5. Remove the screw 2. 6. Remove the LED Reflecter. 7.
DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to remove the other. 3. REMOVAL OF ANODE CAP Read the following NOTED items before starting work. NOTE * After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. * Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged.
KEY TO ABBREVIATIONS A A/C ACC AE AFC AFT AFT DET AGC AMP ANT A.PB APC ASS'Y AT AUTO A/V B BGP BOT BPF BRAKE SOL BUFF B/W C C CASE CAP CARR CH CLK CLOCK (SY-SE) COMB CONV CPM CTL CYL CYL-M CYL SENS D DATA (SY-CE) dB DC DD Unit DEMOD DET DEV E E EF EMPH ENC ENV EOT EQ EXT F F FBC FE FF FG FL SW FM FSC FWD G GEN GND H H.P.
KEY TO ABBREVIATIONS S SYNC SYNC SEP T TR TRAC TRICK PB TP U UNREG V V VCO VIF VP V.PB VR V.
SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter SERVICE MODE, Unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and remocon key for more than 2 seconds. The both pressing of set key and remote control key will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 30 minutes before Power On or alternatively, discharge backup capacitor.
PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Unless maintenance is properly carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. Time Parts Name 500 hours 1,000 hours 1,500 hours 2,000 hours 3,000 hours Notes Audio Control Head Clean those parts in contact with the tape.
PREVENTIVE CHECKS AND SERVICE INTERVALS CLEANING NOTE 2. TAPE RUNNING SYSTEM After cleaning the heads with isopropyl alcohol, do not run a tape until the heads dry completely. If the heads are not completely dry and alcohol gets on the tape, damage may occur. When cleaning the tape transport system, use the gauze moistened with isopropyl alcohol. 3. CYLINDER Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol. Hold it to the cylinder head softly.
NOTE FOR THE REPLACING OF MEMORY IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE: Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 30 minutes before Power On or alternatively, discharge backup capacitor.
SERVICING FIXTURES AND TOOLS (For 2 head 1 speed model, 4 head model) VHS Alignment Tape JG001E (TTV-P2) JG001F (TTV-P1L) JG001U (VP1 S-X6 3 ) (For 2 head 2 speed model) VHS Alignment Tape JG001C (TTV-P2) JG001D (TTV-P1L) JG001V (VP 2 S-X6 3 ) JG002B Adapter JG002E Dial Torque Gauge (10~90gf•cm) JG002F (60~600gf•cm) JG005 Post Adjustment Screwdriver Part No.
PREPARATION FOR SERVICING How to use the Servicing Fixture 1. Unplug the connector CP353, CP755 and CP4202 then remove the TV/VCR Block from the set. 2. Unplug the connector CP810, CP820 and CP805, then remove the Main PCB from the VCR Block. 3. Connect as shown in the below figure using the Service Fixture. • Connect the Sub Power PCB and Main PCB with the cable JG162A. • Connect the Syscon PCB to the Main PCB with the cable JG162G. • Connect the Syscon PCB to the CRT PCB with the cable JG162Y. 4.
PREPARATION FOR SERVICING Servicing Position for Main PCB (In case of needing to check on Main PCB) • It's possible to get the Servicing Position without the extension Jig if you arrange the unit as shown below. (But L503 connection can not be done, Degauss circuit will not operate.) L503 (2 Pin) • Be careful for the short circuit. Main PCB VHS Tape (Put the Tape under the FBT.
VCR TEST TAPE INTERCHANGEABILITY TABLE There are two types of the new alignment tape CH-1B (for NTSC) and CH-2 (for PAL). On each tape four signals (1) - (4) are recorded for the times and in the order shown below. (1) : 8min. ---> (2) : 2min. ---> (3) : 5min. ---> (4) : 5min. The TTV-MP1 (for M-PAL), TTV-MS1 (for MESECAM) and TTV-S1 (for SECAM) alignment tapes have the same contents as the previous tapes.
MECHANICAL ADJUSTMENTS 1-2: CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION 1. CONFIRMATION AND ADJUSTMENT Read the following NOTES before starting work. 1. Set to the PLAY mode. 2. Adjust the Tension Adjust until the edge of the Tension Arm is positioning within 0.5mm range from the standard line center of Main Chassis. After this adjustment, confirm that the cut position is located in "A" area as shown in Fig. 1-2-B. If it is located in "B" area, adjust again. 3.
MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF VSR TORQUE 1. Operate within 4~5 seconds after the reel disk begins to turn. 2. Install the Torque Gauge (JG002F) and Adapter (JG002B) on the S Reel. Set to the Rewind mode. (Refer to Fig.1-4) 3. Then, confirm that it indicates 120~180gf•cm. 2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM NOTE Tape Running Mechanism is adjusted precisely at the factory. Adjustment is not necessary as usual.
MECHANICAL ADJUSTMENTS 2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/ CONTROL HEAD 2-3: TAPE RUNNING ADJUSTMENT (X VALUE ADJUSTMENT) When the Tape Running Mechanism does not work well, adjust the following items. 1. Confirm and adjust the height of the Reel Disk. (Refer to item 1-1) 2. Confirm and adjust the position of the Tension Post. (Refer to item 1-2) 3. Adjust the Guide Roller. (Refer to item 2-1) 4. Confirm and adjust the Audio/Control Head. (Refer to item 2-2) 5.
MECHANICAL ADJUSTMENTS 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 5 6 4 3 7 2 1 8 9 10 1. Tension Adjust 2. Tension Arm 3. Guide Roller 4. P1 Post 5. Audio/Control Head 6. X value adjustment driver hole 7. P4 Post 8. T Brake Spring 9. T Reel 10.
ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CH-2 CAUTION When replacing IC's or transistors, use only specified silicon grease (G746). (To prevent the damage to IC's and transistors.) 6.5H CH-1 Fig. 2-1-A On-Screen Display Adjustment 1. Unplug the AC plug for more than 30 minutes to set the clock to the non-setting state.
ELECTRICAL ADJUSTMENTS 2-8: WHITE BALANCE 1. RF AGC DELAY 2. VIDEO LEVEL 3. FM LEVEL 4. OSD H 5. CUT OFF 6. (VOL TEST) 7. REC AGC DELAY 8. 0. RETURN NOTE: Adjust after performing CUT OFF adjustment. 1. Place the set with Aging Test for more than 15 minutes. 2. Receive the white 100% signal from the Pattern Generator. 3. Using the remote control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig.
ELECTRICAL ADJUSTMENTS 2-11: HORIZONTAL SIZE 2-13: VERTICAL POSITION NOTE: Adjust after performing adjustments in section 2-10. NOTE: Adjust after performing adjustments in section 2-12. Measurement Equipment Maker: SHIBASOKU Co. Limited Measurement Equipment Model No.: DIGITAL TEST PATTERN GENERATOR 588 1. Receive the center cross signal from the Pattern Generator. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig.
ELECTRICAL ADJUSTMENTS 2-16: SUB BRIGHTNESS 2-18: SUB COLOR 1. Receive the black pattern*. (RF Input) 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control to select "PICTURE". The Fig. 2-7 appears on the display. 4. Press the channel button (1) on the remote control to select "BRIGHT". 5. Press the VOL. UP/DOWN button on the remote control until the screen begin to shine.
ELECTRICAL ADJUSTMENTS 2-21: V. S-CORRECTION (V. SC) 1. Receive the color bar pattern. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (1) on the remote control to select "H/V". The Fig. 2-4 appears on the display. 3. Press the channel button (6) on the remote control to select "V. SC 50/60". 4. Check if the step No. of V. SC is "0". 5. Receive the color bar pattern of NTSC. (Audio Video Input) 6. Press the AV button on the remote control to set to the AV mode.
ELECTRICAL ADJUSTMENTS 3.
ELECTRICAL ADJUSTMENTS (TV SECTION) FOCUS VOLUME SCREEN VOLUME VR401 VR403 TP804 VR402 VR404 J801 FB401 T501 VR502 CRT PCB TP401 R449 MAIN PCB D2-7
ELECTRICAL ADJUSTMENTS 4-3: STATIC CONVERGENCE 4. PURITY AND CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 4-2. NOTE 1. Receive the crosshatch pattern from the color bar generator. 2. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 3. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 1.
TROUBLESHOOTING GUIDE (TV SECTION) (In case that there isn't a normal tension for time to do stanby CD810 every terminal) ( 1 ) that a power supply doesn't enter Is there output on the secondary of T501 dimensions or not? NO Voltage of C507 is it normal? NO Investigate R501 and F501. YES YES Whether there is output for IC501 3rd pin or not? NO Investigate IC501 and feed back circuit YES Investigate T501.
TROUBLESHOOTING GUIDE ( 2 ) that a power supply doesn't enter Is the voltage 5V for IC1006 10th pin or not? (In case that there is a normal tension for time to do standby CD810 every terminal) NO Investigate D1006 and D1010. YES Is the voltage of IC1006 54th pin 5V or not? NO Investigate D1018. YES Is there 10MHz OSC for IC1006 78th pin and 80th pin or not? NO Investigate X1001.
TROUBLESHOOTING GUIDE A voice isn't though an image appears Whether does a signal come to IC353 6th pin and 8th pin or not? NO Investigate IC5501 peripheral circuit. YES Does a signal change at a volume upgrade/knock down or not? NO Investigate IC1006 85th pin. YES Is the voltage of IC352 1st pin DC 6.6V or not? NO Investigate D505 and D534. NO Investigate headphone jack (J351) or a peripheral circuit. YES Does a signal come to CP353 1th pin and 4th pin or not? YES Investigate a speaker.
TROUBLESHOOTING GUIDE A color doesn't adhere to it Whether is wave form of IC601 38th pin normal or not? NO Investigate X601. YES Whether is wave form of IC602 19th pin,20th pin and 21th pin normal or not? YES Investigate Q810, Q811, Q812 and a peripheral circuit. NO User and sub colour level are they normal? YES Investigate IC601 . E-4 NO Colour level is adjusted.
TROUBLESHOOTING GUIDE A color doesn't adhere to it Whether is wave form of IC601 38th pin normal or not? NO Investigate X601. YES Whether is wave form of IC602 19th pin,20th pin and 21th pin normal or not? YES Investigate Q810, Q811, Q812 and a peripheral circuit. NO User and sub colour level are they normal? YES Investigate IC601 . E-4 NO Colour level is adjusted.
TROUBLESHOOTING GUIDE NO PLAYBACK PICTURE Does E-E appear on the Monitor TV? No Is there voltage at pins 12, 36 and 61 of IC4001 5V? Yes Is there PB Y/C signal at TP4002 ? No Check Power circuit. Yes No Check IC4001 and the connection of the CYLINDER. Yes Is there FM Y signal at pin 78 or 79 of IC4001? No Check C4035 and the peripheral circuit. No Check C4075, R4050 and the peripheral circuit. No Check R4040, Q4006 or Replace IC4001.
TROUBLESHOOTING GUIDE NO COLOR DURING PLAYBACK Does FM ENVELOPE appear at TP4002? No Check IC4001. Yes Does CHROMA signal appear at pin 52 of IC4001? No Check R4040, Q4006 and peripheral circuit. No Check C4075, R4050 and the peripheral circuit. Yes Does CHROMA signal appear at pins 55 or 54 of IC4001? Yes Is there voltage at pin 61 of IC4001? No Check L4013 or Replace IC4001. Yes Check TV Block.
TROUBLESHOOTING GUIDE PLAYBACK PICTURE IS NOISY (EVEN AFTER CLEANING HEADS) Is FM signal at TP4002 more than 200mVp-p? No Replace CYLINDER UNIT. Yes Is VIDEO waveform at pin 52 of IC4001 1Vp-p and are there any noise? No Check pin 52 of IC4001 and peripheral circuit. No Check pins 79 and 78 and peripheral circuit. No Check C4075 and peripheral circuit. Yes Is there FM signal at pin 79 of IC4001 200mVp-p? Yes Is there CHROMA signal at pin 55 of IC4001 200mVp-p? Yes Replace IC4001.
TROUBLESHOOTING GUIDE NO COLOR DURING SELF RECORDING AND PLAYBACK Does VCR signal appear at pin 58 of IC4001? No Check J4501, J701 and VIDEO input circuit. Yes Does during playback PB-C appear at pin 54 of IC4001? No Replace IC4001. Yes Check TV block.
TROUBLESHOOTING GUIDE NO NORMAL AUDIO IN PLAYBACK MODE Is sound heard on E-E ? No Refer to section "NO E-E". Yes Does Audio appear at pin 11 of IC4001? Check AUDIO HEAD for debris of stains. Check that the connector from AUDIO HEAD is fully inserted to CP4005. No Yes Does Audio signal appear at pin 21 of IC701? No Check L4001, Q4007 and peripheral circuit. No Check IC701. Yes Does Audio signal appear at pin 1 of IC701? Yes Check sound AMP circuit.
TROUBLESHOOTING GUIDE CAPSTAN DD MOTOR NOT ROTATING In playback, is the voltage at pin 5 of CP1004 12V? No Check POWER circuit. Yes Is the voltage at pin 8 of CP1004 5V? No Yes In playback, check the voltage at pin 3 of CP1004 is 2V or at pin 83 of IC1006 is normal? No Replace IC1006. Yes In playback, is the voltage at pin 4 of CP1004 2.5V? No Check pins between 72 and 108 of IC1006 and peripheral circuit. Yes Replace DD MOTOR.
TROUBLESHOOTING GUIDE AUDIO CAN NOT BE RECORDED Is there BIAS at pin 4 of IC4001? No Is the voltage at pin 2 of L4005 5V? No Check POWER BLOCK. Yes Yes L4005 is broken or shorted. Check peripheral circuit. Is there AUDIO signal at pins 7 or 8 or 9 of IC4001? No Check the circuit of 21 PIN and TUNER. Yes Is there signal at pin 11 of IC4001? No Replace IC4001. Yes Check the lead wire and connector to A/C HEAD.
TROUBLESHOOTING GUIDE CASSETTE IN AND DOWN BUT UNIT HAS NO FUNCTIONS Does mode indicator appear in Display? Yes Check LOADING MOTOR and the peripheral parts. No Does VCR operate with the remote control? No Check IC1006. Yes Check CONTROL PCB.
TROUBLESHOOTING GUIDE RECORDING MECHANISM WORKS, BUT NO VIDEO RECORDED FROM INPUT JACK OR TUNER Does video signal appear at pin 28 or 30 or 31 of IC4001? Check the circuit from VIDEO input jack to IC4001 and from Tuner Pack to IC4001. No Yes Does FM signal appear at pin 86 or 89 of IC4001? No Check the peripheral circuit IC4001. Yes Does FM signal appear at pin 2 or 4 of CP4001? No Check C4027, C4028 and the peripheral circuit. Yes Check CYLINDER UNIT and IC4001.
TROUBLESHOOTING GUIDE NO E-E (NO VIDEO AND AUDIO FROM TUNER) Is the voltage at pin 7 of TU601 5V? No Check Power PCB. Yes Is the voltage at pin 9 of TU601 30V? No Yes Is there waveform at pins 4 and 5 of TU601? No Check IC1006. Yes Check TU601.
TROUBLESHOOTING GUIDE CYLINDER NOT ROTATING DURING PLAYBACK AND RECORDING Is the voltage at pin 2 of CP1005 about DC12V? No Check P. CON 12V line and POWER BLOCK. Yes In playback, is the voltage at pin 5 of CP1005 about DC1.2V? No Check IC1006. Yes Check CYLINDER MOTOR.
TROUBLESHOOTING GUIDE AUDIO SHAKES Is AUDIO HEAD scratched? Yes Replace AUDIO HEAD. No Does pin 9 of IC1006 output a 3.0Vp-p square wave? No Replace CAPSTAN DD MOTOR. Yes In playback, is the voltage at pin 4 of CP1004 2.8V? No Check peripheral components of IC1006. Yes Check AUDIO BLOCK.
TROUBLESHOOTING GUIDE CASSETTE TAPE IS NOT ACCEPTED Does WORM GEAR of CASSETTE LOADING BLOCK activate? No Check WORM GEAR of CASSETTE LOADING BLOCK. Yes Check EOT, BOT, PHOTO SENSOR, pins 25 and 26 of IC1006. Yes When cassette is not inserted ,is EOT BOT PULSE at pin 2 of CP1006 and Q1017? No When a cassette is inserted, is the voltage between pins 3 and 4 of CP1006? Yes Replace LOADING MOTOR. No When a cassette is inserted, is the voltage at pin 67 of IC1006 5V? No Replace IC1006.
TROUBLESHOOTING GUIDE WHEN INSERTING CASSETTE, IT EJECTS IMMEDIATELY Does this same problem appear when using another cassette tape? No Defective CASSETTE or CASSETTE LOADING BLOCK. Yes When inserting a cassette, does Emitter of EOT return to LOW? No Replace EOT PHOTO TRANSISTORS. Yes Is pin 68 of IC1006 LOW? No Check IC1001 circuit. Yes Check IC1006 circuit.
TROUBLESHOOTING GUIDE FF/REW DO NOT WORK When the FF/REW is pushed, does the PULSE appear at pin 71 of IC1006? No Check pin 71 of IC1006 lines. Replace IC1006. No Check pin 7 of CP1004 and peripheral circuit. Yes Is the voltage change at pin 7 of CP1004 when you press FF/REW? Yes Check DECK MECHANISM.
TROUBLESHOOTING GUIDE TAPE LOADING IS OK, BUT UNLOADS IMMEDIATELY Does CYLINDER rotate ? No Yes Is the voltage at pin 2 of CP1005, UNREG 12V? Yes Replace CYLINDER UNIT. No Does TP4001 feed HEAD SWITCHING PULSE signal 30Hz? No Does PG PULSE appear at pin 103 of IC1006? Yes Yes Replace IC1006. Does REEL SENSOR PULSE signal appear at pins 69 and 70 of IC1006? Yes No Check REEL SENSOR. E-23 No Check Power circuit.
TROUBLESHOOTING GUIDE PLAYBACK PICTURE JITTERS VERTICALLY No Does tracking noise appear in the picture? Yes By adjusting the manual tracking UP/DOWN buttons, will the noise disappear in the picture? No Check P/B ENVELOPE. Yes Are GUIDE POSTS the right height? No Adjust GUIDE POST height. Yes Is PG SHIFTER Adjustment 6.5H? No Adjust PG SHIFTER. Yes Check YCA circuit.
TROUBLESHOOTING GUIDE PLAYBACK PICTURE JITTERS HORIZONTALLY Is FG output level at pin 3 of CP1005 5Vp-p? No Replace CYLINDER UNIT. Yes Is the voltage at pin 5 of CP1005 1.2V? No Replace IC1006. Yes Replace CYLINDER UNIT. AUTO TRACKING DOES NOT OPERATE By manual tracking, does the DC level at pin 24 of IC1006 change? No Check YCA, H/AMP circuit and CYLINDER UNIT. Yes In auto tracking, is the voltage at pin 24 of IC1006 more than DC0.7V? Yes No Does the CTL PULSE (about 1.
TROUBLESHOOTING GUIDE WHEN PLAYBACK, FAST FORWARD OR REWIND MODE IS ACTIVATED, UNIT STOPS IMMEDIATELY Does CAPSTAN DD MOTOR rotate? No Refer to section "CAPSTAN DD MOTOR NOT ROTATING". Yes Is CAPSTAN BELT normal? No Replace CAPSTAN BELT. Yes Does REEL SENSOR PULSE signal appear at pin 69 of IC1006? No Check Reel Sensor of Q1001 and R1006. No Check Reel Sensor of Q1005 and R1019. Yes Does REEL SENSOR PULSE signal appear at pin 70 of IC1006? Yes Replace IC1006.
TROUBLESHOOTING GUIDE PLAYBACK PICTURE SHAKES Is FG Pulse output level at pin 3 of CP1005 about 5Vp-p? No Replace CYLINDER MOTOR. Yes Does pin 104 of IC1006 output a 5Vp-p square wave? No Replace IC1006. Yes In playback, is the voltage at pin 5 of CP1005 about 1.2V? No Yes Replace CYLINDER MOTOR.
IC DESCRIPTIONS OEC0096A No. PORT PIN NAME I/O 1 SVSS SVSS - 2 CTLREF CTLREF 3 4 CTL(+) CTL(-) CTL(+) CTL(-) 5 CTLBIAS CTLBIAS 6 7 CTLFB CTLAMP(O) CTLFB CTLAMP(O) 8 9 CTLSMT(I) CFG CTLSMT(I) CFG DESCRIPTION Ground. OUT Output terminal for AMP REFERENCE. I/O Input and output terminal of Control Head. I/O Input terminal of Control Head. IN Input terminal of Control Bias. IN Input terminal for Control Feedback. OUT Output terminal for Control Amp Output.
IC DESCRIPTIONS OEC0096A No. PORT 51 P61/RP1 PIN NAME I/O DESCRIPTION 52 P60/RP0 CENT_LED 53 54 P37/TMO P36/BUZZ TAB_SW CTL_MONITOR IN Input terminal for judge the tape if it has TAB or not. OUT Output terminal for control Monitor. 55 P35/PWM3 MS_SENS_CTL OUT Output terminal to drive sensor control.
IC DESCRIPTIONS OEC0096A 101 P85/COMP/B B 102 103 P86/EZTTRG P87/DPG CYL_SPEED_UP DPG OUT Output signal of B for OSD. OUT Output terminal for correct cylinder during SLOW. IN Input terminal for DRUM PG signal. 104 A.DFG DFG 105 106 VIDEO_FF AUDIO_FF VIDEO_H.SW Hi-Fi_H.SW OUT Output terminal of signal Video head switching. OUT Output terminal of signal HI-FI sound head switching. IN Input terminal for DRUM FG signal. 107 DRMPWM DRUM_PWM OUT Output terminal for PWM of Drum Motor.
SERVO TIMING CHART IC1006 (OEC0085B) DPG 107 PIN DFG 108 PIN 24 Cycle H. SW.
SYSTEM SWITCH MODE PB FWD : CAPSTAN FWD ROTATING DIRECTION RVS : CAPSTAN RVS ROTATING DIRECTION LOADING DIRECTION (FWD) EJECTION UNLOADING SLOW : SETTING SPEED TO SERVO : MECHANICAL MOVEMENT AND CAPSTAN ROTATING : MECHANICAL MOVEMENT (NO CAPSTAN ROTATING) STP3 VSR R. SLOW F. SLOW PB/STP STP2 FF/REW LIGHT RECEIVING EOT BOT MSSEN A MSSEN B LIGHT GUARD LIGHT RECEIVING LIGHT GUARD LIGHT RECEIVING(H) LIGHT GUARD (L) LIGHT RECEIVING LIGHT GUARD Maintains the Direct Connection for STOP2, too.
SEMICONDUCTOR BASE CONNECTIONS DIODE CATHODE CATHODE ANODE ANODE ANODE 1SS133T-77 MTZJ30B T-77 MTZJ33B T-77 MTZJ5.6B T-77 MTZJ6.
TV BLOCK DIAGRAM SOUND IF AMP IC602 LA7510 V. OUTPUT IC401 LA7840 SAW FILTER CF603 AMP 1 4 1 TUNER/ HIFI/ STEREO DETECTOR 5 AMP 5 CHROMA IC602 NN5099 SIF PUMP UP + 6 2 2 1 6 AMP Q405 APC VCO TINT ACC FB401 VER C/D 23 44 42 H SYNC SEP HOR C/D 2 AMP TU601 11 SW 1 4 28 2 EF F 9 G2 7 AFC2 V801 CRT 8 PH SHIFT 6 Q810, Q801 AMP RED AMP HOR OUT 11 Q811, Q802 27 GREEN AMP SPLL BPF 5 DELAY VIDEO AMP P.
Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM VPS/PDC IC4002 LC74793/JM RECORD LUMINANCE SIGNAL PLAYBACK LUMINANCE SIGNAL RECORD COLOR SIGNAL PLAYBACK COLOR SIGNAL TUNER VIDEO SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL (PB) TUNER AUDIO SIGNAL SYNC IN 16 X'tal IN 2 SDA 6 SCL 7 Q4009 Q4006 PAL SW PAL_H TUNER/ HIFI/ STEREO Q4008 V.SYNC X4001 4.433619MHz BUFFER VV_H 8 HF COM 73 60 75 58 52 54 55 89 7 HF2(L) 6 SP-CH1(R) 88 87 5 SP COM 4 SP-CH2(L) 6dB AMP H.
AV_1 AV_2 VCR_A_MUTE MICON/OPERATION BLOCK DIAGRAM SW1001 2 3 1 4 SYSCON/TIMER/SERVO IC1006 OEC0085B 53 TAB SW SCL SDA POWER FAIL POWER_FAIL (DC) 37 SDA 1 4 2 3 1 4 2 28 MS SEN-A MS_SEN A Q1009 27 MS_SEN B Q1003 3 1 3 2 4 1 2 SYSTEM RESET IC1002 RE5VS31A OUT 70 REEL SENS.
IF/21PIN/IN/OUT/POWER BLOCK DIAGRAM VIF IC6001 LA7567B TU1001 RECORD LUMINANCE SIGNAL PLAYBACK LUMINANCE SIGNAL RECORD COLOR SIGNAL PLAYBACK COLOR SIGNAL TUNER VIDEO SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL (PB) TUNER AUDIO SIGNAL R.
T'TEXT BLOCK DIAGRAM Q861 BUFFER MONITOR_V Q863 D860 21_B IF/21PIN/ IN/OUT /POWER P.CON+5V_D V.
TUNER/HIFI/STEREO BLOCK DIAGRAM AUDIO SIGNAL(REC) AUDIO SIGNAL (PB) TUNER AUDIO SIGNAL NORMAL_AU Y/C/AUDIO/ HEAD AMP Y/C_AUDIO HIFI/AUDIO IC5501 TDA9605H HF_1 HF_COM 22 21 HF_2 X6601 24.576MHz 35 15 36 NORMAL SELECT 37 AV_1 OUT PUT SELECT AV_2 MICON/ OPERATION HF_H.
PRINTED CIRCUIT BOARDS OPERATION SOLDER SIDE A B C D E F G CD702 CD757_1 SW793 SW792 SW791 SW797 SW796 SW799 D793 SW798 D794 SW750 W807 SW794 SW795 1 W806 W809 W804 C755 W812 R351 D796 R753 D791 B C D E F DECK TV POWER SOLDER SIDE SOLDER SIDE CP101 S105 S101 L505 S106 S104 S103 S102 CP504 Q101 I-1 R766 W004 W001 A C781 R758 OS753 R352 W006 SW751 W005 R776 C751 R755 C353 C779 R751 R777 R752 R771 R793 W803 R772 W002 J701_1 W813 C352 J351 R
A B C D E F G H OPERATION SCHEMATIC DIAGRAM 8 8 (OPERATION PCB) 7 6 6 1/4W 7 270 ST.BY/ON TIMER D794 SLR-342VCT32 W803 R793 C751 100P B C755 6.3V 220 KS SKHVBED010 2.7K 1/4W PLAY BACK SW750 R780 1.5K 1/4W SKHVBED010 R777 VOL DOWN SW797 KEY B ON TIMER LED SKHVBED010 9 10 1K 1/4W VOL UP SW796 REC LED SKHVBED010 T-REC LED 8 CH UP SW798 7 R776 SKHVBED010 KEY A CH DOWN SW799 OTPB LED 6 SLR-342VCT32 1 Vout 1/4W SLZ-345B-02-T1 T-REC D791 2 B+ 4.8 270 4.
A B C D E F G H CHOKE COIL SCHEMATIC DIAGRAM 8 8 (TV POWER PCB) 7 7 6 6 5 5 1.0 7 9 1.0 8 1.0 11 1.0 4 69.0 NC 0 FROM/TO TV POWER COIL IN 1 COIL OUT 2 69.8 69.8 NC 0 6 5 4 3 2 1 L505 4 12 CH15049420 1.0 71.0 CP504 (CD504) TS-80P-02-V1 PCB080 TE7935 3 3 2 2 1 NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A B C D E F G H DECK SCHEMATIC DIAGRAM 8 8 7 7 LOADING MOTOR M101 (DECK PCB) 6 6 S105 5.
PRINTED CIRCUIT BOARDS STEREO IF A A B 2 C6641 C6642 1 C6664 C6658 R6638 C6663 C6659 R6634 D6602 R6637 12 R6022 R6013 C6019 C6639 1 C6650 C6648 C6013 R6014 W806 S803X 1 W819 S803Y 2 C6640 C6647 R6020 R6626 W008 S801Y W811 C6016 C6023 R6021 R6701 C6022 R6025 R6024 R6040 34 C6637 1 23 C6655 B A I-5 B R6627 A C6654 C6653 C6649 C6660 R6041 R6011 C6012 C6006 R6028 C6015 R6027 W803 S801X C6010 R6016 R6002 C6703 W823 R6038 C6033 W802 R6625 W010 C6008 C6020_1
I-6 A B W833 W832 W814 X6602 C6669 W004 W835 R6636 Q6006 R6633 L6602 C6651 R6620 W824 C6014 CF6004 C6031 W005 W004 CF6007 W821 W001 C6029 C6667 W001 B CP6601 Q6001 C6003_1 W003 W009 IC6603 S802X R6001_1 CF6005 C6028 R6702 C6634 W820 R6622 C6644 C6645 W824 R6624 W826 R6628 R6629 L6604 C6665 C6004 C6002 A W831 L6008 CP6001_2 R6023_1 CF6002 1 W817 CF6008 L6011 Q6005 L6003 1 W812 IC6001 C6011 L6603 S802Y W811 CF6001 2 W822 R6019_1 2 L6007 A B W823 A
B I-7 A B W835 C6654 C6653 34 R6627 C6655 C6651 IC 66 02 L6604 CF6005 W008 C6665 R6626 C6634 C6639 W820 R6622 C6644 C6645C6641 C6642 W824 R6624 C6647 W826 C6650 R6629 C6648 R6628 IC6603 1 R6620 W009 C6004 R6020 CF6001 C6020_1 C6002 R6016 C6640 W004 C6664 C6658 R6638 C6663 C6659 R6633 R6634 D6602 R6637 L6602 12 W833 W832 C6660 R6636 W814 C6014 1 X6602 C6010 R6014 W806 CF6004 C6013 C6008 R6002 S802X R6001_1 C6003_1 W003 1 C6669 C6667 W001 C6016 C6031 W005
A B C D E F G H IF SCHEMATIC DIAGRAM 8 8 CF6005 TPS6.0MB C6004 R6019_1 2.1 LA7567B 2.2 3.6 2 5.1 4.3 3 4 5 23 22 2.7 20 2.2 6 1 4 IST DET VIF AMP IF AGC 21 1.9 19 0 18 2.9 17 2.9 16 2.5 AFT IST AMP AGC 15 1.9 14 1.7 13 0.5 1.8 C6008 0.01 B L6003 C6010 0.01 B 0.01 B W806 5 C6014 100 1/4W R6023_1 1.2uH 820 L6011 4 330 R6040 0.001 B C6029 C6023 PRE.AMP Q6005 2SC3000 0.001 B R6027 0.6 120 6.8K 4.5 1.4 R6028 150 R6021 CF6008 MKT41.
A B C D E F G H STEREO SCHEMATIC DIAGRAM 8 8 (STEREO PCB) 5V REG IC6603 KIA7805API OUT GND 3 2 5.2 FROM/TO CHROMA/IF CP6601 (CP601) CPB1809-0101 C6669 0607 P.CON+8V[VCR] 1 C6655 47P CH 6.3V 47 KA C6667 47P CH C6654 C6651 0.1 B 7 27 1W 100uH 0.01 B C6653 50V 1 KA 10 R6627 C6649 1 8.3 10V 47 KA 100 R6626 100 R6625 C6622 0.1 B 0 R6639 W831 L6604 47P CH 0.
A R868 Q863 R864 Q4504 B Q604 Q1007 C691 R1008 C1057 C I-10 Q4510 Q4508 Q609 R601 D R677 Q602 C1007 R354 Q353Q352 Q1012 R1012 R1009 R1032 Q1004 E C1028 C1060 R1064 R1057 R1017 R1020 R1094 57 C1029 29 1 C1067 R1021 C1038 C1035 C1027 Q1016 R1096 R1033 C1071 R1045 R1044 C1072 C1030 R1006 R1019 Q1020 R862 R854 R853 Q853 Q4015 Q1024 Q1022 S810X C1056 R1055 R1083 C1050 Q1015 C1069 F R1018 R1073 R1071 R879 R1111 C1059 C1084 C1085 R1109 C1075 R1070 R1107 R1108 C1083 R1002 R1
D1001 W178 W177 W174 W176 W173 W806 C692 D855 W006 D857 W801 D858 W082 R1005 D861 D852 R4510 Q1006 W083 C884 W081 W172 W235 CP755 CP810 D860 C1001 W234 W231 W378 W232 W320 D1006 W317 W078 W166 W171 W818 W170 W168 W822 W857 W321 W322 W369 W077 C629 W233 C687 W076 R666 W074 C625 C611 R656 L601 R641 R623 C659 W802 C614 D602 C613 D605 C639 C636 W075 CP1006 W319 W003 W004 W079 D601 D604 W005 W080 C D1020 IC1001 D1004 C D8 50 D4202 C1090 W163 C104
D4202 R1065 R1068 D861 D852 R4504 R4503 R889 R4510 R863 Q1006 R686 C692 R602 D1001 W178 W177 W174 W176 W173 W806 R1060 D855 W006 D857 D851 W801 D858 D860 R685 W083 W082 R1005 CP810 C884 W081 W172 W235 CP755 C1001 W234 C629 L601 R641 R623 R656 C1054 C1046 C1022 R659 C1055 R1082 C1048 Q1 R1090 C1074 C1032 Q1003 R1054 R1001 W226 W227 W370 W225 9 R1087 00 W187 W186 J4501 R4521 R1030 C1078 R1026 W091 L611 C686 R633 R664 C615 R632 C661 R646 W182 W183 W1
E F A CP.OUT VCO IN 4.8 C 0.1 B C4089 C4084 10V220 RZ 0.1 B R4041 0.1 B 0.1 B C4111 C4109 C4104 6.3V 47 KA 100uH 0607 68P CH C4076 39uH R4050 330 50 49 48 R ATT (-10dB) P ATT (-10dB) ATT (-10dB) LPF R YGND AGC 0 0 C4080 2.5 1.8 H.SW C4070 0.1 B C4071 16V10 KA 0.1 B 47P CH C4115 C4062 C4060 39P CH 4.8 3.0 SCL SDA D_V_SYNC V.REC_ST_H 4.8 ENV_DET 0.1 L4015 120P CH 0 0 0 CTL+ CTL2FSC_A 0.1 B 3.0 100uH 0607 0.1 B C4082 C4003 4.8 P.
A B D1010 D E F MICON SCHEMATIC DIAGRAM SB10-03A3 AT+5.6V G (SYSCON PCB) 1 4 CTL 5 VCO 6 FG 7 CAP.M/F/R 8 VCC(5V) R1032 CAP_FG 68P CH 3.3K C1071 3.3K R1045 SDA VSS SCL A2 TEST A1 VCC 0 0 0 51 50 4.4 VCR_POWER_H R1039 5.2 1K 5.2 5.1 5.2 OTPB_LED 5.2 NC 0 R1060 5.2 270 5.1 TV POWER SW Q1014 2SC2412K 4.4 4 1 1.4 1 4 0.5 1.4 4 0 3 4 5.1 0 3 5.1 5.2 5.2 R1082 4.7 NC 5.2 22K TUNER_CTL C1069 REMOCON_IN 22P CH R1077 10K 5.3 2 3 0 5.1 5.
A B C D E F G H POWER SCHEMATIC DIAGRAM (SYSCON PCB) 8 P.CON+8V[VCR] P.CON+8V 6 P.CON+5V A AT+30V P.CON+5V_C P.CON+5V_B 4.8 R1070 5.2 270 R1108 REC_TU_AU-L 100P CH C1083 MONITOR_V MONITOR_A-L 5.6K 4 AFT REC TU AUDIO 7 P.CON+5V GND 11 IF 4.3 0 7 4.4 8 L1002 100uH 0607 8.5 3.8 100 R704 REC_AFT P.CON+8V[VCR] 6 3 2 1 AGC 4.2 12 0 ANTENNA 16V10 KA 33 GND C710 3.5 16V10 KA R705 16V47 KA 560 C703 13 FRONT_V_IN C711 4.
A B C D E F G H 2 3 1 FRONT VIDEO IN GND 5 6 4 FRONT A IN L 8 SOUND GND SOUND OUT L 7 GND SP OUT L 9 10 8 FRONT A IN R 5 MONITOR V SP OUT R 4 GND SOUND OUT R 3 P.
DET.FILTER MATRIX RGB TV_POWER_H P.CON+9V SEP VER AFC2 0.0039 B C692 0.3 R653 0 5.6K R601 16V 470 YK C629 5.6K 3.7 VV SW Q613 DTC124EKA TU_AUDIO-L 28 1.1 SCL 2 B.OUT 1 SIF 8 TU AUDIO-R 7 TU AUDIO-L 6 GND 5 GND 4 SCL 3 SDA 2 P.CON+8V[VCR] 1 SDA R656 HD 3.3K 1/4W 1B P.CON+8V[VCR] 1B 0 3 R.OUT 1 B 29 C630 30 0.9 4 G.OUT SIF C698 C651 0 31 4.9 5 L004 HF57T18.5*10*10 CP601 (CP6601) CPB1809-0101 TU AUDIO 9 TU_AUDIO 0 C697 1 B 0 32 8.5 5 4.
A B C D E F G H SOUND AMP SCHEMATIC DIAGRAM 8 8 (SYSCON PCB) SOUND_AMP IC353 AN7522 + 7 - 12 3.5 11 0 R 10 3.5 9 6.6 8 1.3 - L 7 0 6 1.3 5 3.9 + 4 3.5 3 0 7 2 3.5 1 6.6 C372 HS353 763W110131 16V 1000 YK FROM/TO CHROMA/IF W812 R357 6 SOUND+B 6 FROM/TO 21PIN I/O 0.33 2W 0.001 CH C371 R351 C356 0.001 CH C370 C359 0.056 B POWER_FAIL[DC] FROM/TO POWER 330 SOUND_L+ R358 SOUND_GND SOUND_R+ SP_OUT_L W906 MONITOR_A-L_A SP_OUT_R 2.
A B C D E F G H T’TEXT SCHEMATIC DIAGRAM 8 8 (SYSCON PCB) C894 16V22 KA C854 6.3V 220 KA C853 C862 0.1 B 1 2 3.5 3 3.5 4 4.8 C895 5 5.1 6 0 0.1 TF W853 7 0 R911 DATA SLICER IC852 ET317 CSIG 17 WIND AGND DVCC OSC1 1.8 0.5 0 2.3 4.4 C876 0.022 B C868 W892 C886 15P CH OSC2 51 6 15 C893 10P CH X851 13875KHz C890 DGND AVCC TADATA CREF TCLK AGND TSTAPLB BIAS 7 0 4.8 8 15P CH 0.5 9 0.1 MMTV W848 C865 W851 2.5 OSC OUT 14 4.8 2.
A B C D E F G H TUNER/HI-FI SCHEMATIC DIAGRAM TU_AUDIO-R_A FROM/TO CHROMA/IF TU_AUDIO-L_A MONITOR_A-R REAR_AUDIO_IN-R REAR_AUDIO_IN-L FRONT_AU_IN-R FRONT_AU_IN-L FROM/TO 21PIN I/O AV_2 AV_1 SDA SCL HF_ENV VCR_A_MUTE HF_H.SW 8 FROM/TO MICON GND HF_COM HF2 HF1 Y/C_AUDIO FROM/TO Y/C/A/H.AMP MONITOR_A-R FROM/TO SOUND AMP MONITOR_A-L REC_TU_AU-R REC_TU_AU-L P.CON+5V_C AT+9V P.
A B C D E F G H REGULATOR SCHEMATIC DIAGRAM (SYSCON PCB) 8 FROM/TO DEFLECTION 9V REG IC9001 KIA7809API CD9002(CP402) CH01432A 1 8 GND 7 3 DRIVER Q9001 2SB892 7 AT+13V 8 AT+30V GND 12 GND 11 MOTOR+12V 10 OUT UNREG+8V C9007 1 2 3 16V 470 YK 8.5 5 4 GND OUT C9005 8.4 IN DRIVER Q9003 2SB892 1 2 3 8.3 R9010 0.2 8.3 16V 330 YK D9004 5V REG. IC9002 KIA7805API 0.6 MOTOR GND 9 P.CON+8V[VCR] 8 5.6 6.
PRINTED CIRCUIT BOARDS MAIN/CRT/POWER SW SOLDER SIDE A B C D Q505 4 D533 C537 D519 C517 W856 C519 W818 C521_1 D510 C531_1 D5 24 CP810_1 C524 W001 Q508 R521 C528 D515 R5 12 D511 C523 D508 D503 C527 C518 F502 FH503 R403 C403 Q502 FH504 C412 W026 W811 R805 C411 CP803B R508 D401 R408 C406 C409 R416 FB401 D525 W002 R518 W022 C404 W020 Q509 W057 D530 HS401 W056 R524 Q503 R519 R520 D526 C504 W819 W011 W012 R504 W805 IC401 C520 C508 C437 R411 R41
A B C D E F G H TV POWER SCHEMATIC DIAGRAM (MAIN PCB) 8 10K 1/4W 1 12V B505 GND C520 FH503 EYF-52BC 16V2200 MHE D533 10ELS2N C518 10ELS2N 500V560P B 9.8 15 0 16 ICP502 D514 251007 5A125V 21DQ09N D512 21DQ09N MTZJ33B 0.022 F D515 C528 3.5 SWITHING Q505 2SC2909 0 5 4.8 R520 10K 1/4W UNREG+8V D535 13.1 17 21DQ09N-FC4 13.0 18 4 EG-01C C534 BP 0.
A B C D E F DEFLECTION SCHEMATIC DIAGRAM G H (MAIN PCB) 8 8 V.OUTPUT IC401 LA78040 THERMAL PROTECTION AMP + PUMP UP GND Vcc 1.3 W805 5 0 6 7 12.9 24.8 3.9 7 R464 1K 1/2W R448 V.POSI VR403 2.2K D403 MTZJ30B R465 C450 2KV 0.001 YR V801 A51LSH196X01(O) TV POWER H POWER FAIL[DC] 11 V.PULSE 12 VCR POWER H 13 DEGAUSS H 14 V.OUT A R G B 5 C430 5 7 1 D415 H.PULSE 9 9 10 8 6 11 RMPG06J 8 2KV 0.
A B C D E F G H CRT SCHEMATIC DIAGRAM 8 8 (CRT PCB) R804 7 L802 6 82uH 15K 2W 0607 7 6 7.3 W853 TP804 R.OUT 1 B.OUT 108.3 GREEN AMP Q802 2SC2621 R805 56 1/4W 270P B R817 0 123.9 220 1/4W 6.2 7 8 9 5 4 10 11 7.8 R814 6 117.2 121.0 2 R829 2.7K 1/4W 1 7.3 0 D802 1SS133 R812 R819 1.8K 1/4W 56 1/4W G.OUT 2.4 J801 CVT3275-5101 GREEN AMP Q811 2SC1740SP 120PB 3 TP805 R807 CUT OFF 3.0 C805 GND 4 7.
C D E VEX919 CP1004 1 P.CON+8V[VCR] 1 SDA 2 3 SCL SCL 3 4 GND GND 4 5 GND GND 5 6 TU AUDIO-L TU AUDIO-L 6 7 TU AUDIO-R TU AUDIO-R 7 8 SIF SIF 8 9 TU AUDIO TU AUDIO 9 SOUND GND H.OUT 2 H.OUT 4 GND GND 4 5 P.CON+5V A P.CON+5V A 5 6 V.OUT V.OUT 6 7 ACL 7 8 H.PULSE ACL H.PULSE 9 TV POWER H TV POWER H 3 4 CTL 4 5 VCO 5 6 FG 6 7 CAP.M/F/R 7 8 VCC(5V) 8 9 10 POWER FAIL[DC] POWER FAIL[DC] 10 V.
WAVEFORMS Y/C/AUDIO/HEAD AMP TV POWER 1 5V 0.1ms/div 6 20V 20µs/div 11 PB 2V 10ms/div 7 20V 20µs/div 12 PB 10mV 5ms/div DEFLECTION 2 5V 50µs/div DEFLECTION 3 0.5V 10ms/div 8 10V 10ms/div 13 POWER ON 200mV 50ns/div TV POWER 4 200mV 50µs/div 9 20V 10ms/div 14 POWER ON 0.5V 10µs/div CRT 5 2V 20µs/div 10 2V 5µs/div 15 POWER ON 2V 20µs/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
WAVEFORMS MICON 16 POWER ON 200mV 10µs/div 21 POWER ON 1V 50ns/div 26 PB 50mV 0.5ms/div 17 POWER ON 50mV 1ms/div 22 POWER ON 1V 20µs/div 27 PB 1V 0.5µs/div 18 POWER ON 50mV 1ms/div 23 POWER ON 2V 20µs/div 28 PB 1V 0.5µs/div 19 REC 10V 5µs/div 24 POWER ON 2V 5ms/div 29 PB 2V 20µs/div 20 REC 10V 5µs/div 25 PB 50mV 10ms/div 30 PB 1V 50ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
WAVEFORMS POWER 31 REC 0.5V 10µs/div 36 POWER ON 0.5V 20µs/div 41 POWER ON 200mV 0.1µs/div 32 REC 0.5V 0.5ms/div 37 POWER ON 0.5V 20µs/div 42 POWER ON 200mV 10µs/div 33 REC 0.5V 10µs/div 38 POWER ON 0.5V 10ms/div 43 POWER ON 10mV 10µs/div 39 POWER ON 200mV 50µs/div 44 POWER ON 0.5V 10µs/div CHROMA/IF 34 POWER ON 5mV 1ms/div POWER 35 POWER ON 0.
WAVEFORMS 21PIN IN/OUT T'TEXT 46 POWER ON 0.5V 10µs/div 51 IF 21PIN IN/OUT 47 REC 0.5V 10µs/div POWER ON 200mV 50ns/div 52 POWER ON 20mV 1ms/div 48 REC 100mV 0.5ms/div SOUND AMP 49 REC 0.5V 0.5ms/div 50 REC 0.5V 0.5ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
MECHANICAL EXPLODED VIEW 130 201 145 138 203 137 J801 205 201 203 114 137 206 203 130 139 PCB110 (CRT PCB) 205 132 205 129 203 141 L503 128 130 205 V801 141 212 115 212 115 206 202 115 217 219 PCB070 (MAIN PCB) 108 149 PCB340 (POWER SW PCB) PCB080 (TV POWER PCB) 150 104 SP302 143 207 140 211 109 108 219 219 219 SW501 218 217 212 115 206 216 212 144 212 218 110 219 140 212 207 136 A PCB030 (OPERATION PCB) 121 207 121 207 117 140 207 207 119 120 208
MECHANICAL EXPLODED VIEW 213 134 A 206 214 115 214 204 206 204 133 214 204 152 115 102 112 126 151 PCB240 106 PCB350 (STEREO PCB) (IF PCB) TU602 ANT601 202 212 206 219 142 J4501 PCB120 (SUB POWER PCB) 107 114 210 105 TU601 103 PCB010 (SYSCON PCB) 122 114 202 147 131 146 215 148 B 135 148 111 215 209 K1-2
MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO.
CHASSIS EXPLODED VIEW (TOP VIEW) 503 367 300 503 510 M2003 UN4001 335 319 505 313 507 334 318 AA H5001 502 508 H5002 314 321 501 506 349 348 328 305 356 347 310 336 512 301 313 304 508 512 361 303 315 338 317 369 316 AA 355 AD AB 309 AA 320 AB AA 353 359 M101 AA 502 366 357 329 368 BA 366 358 306 364 515 509 502 AD AD 363 PCB550 (DECK PCB ASS'Y) 330 365 AD AA AD AD 351 362 323 324 AD AD 511 360 352 CLASS GREASE OIL PART NO.
CHASSIS EXPLODED VIEW (BOTTOM VIEW) 302 300 M2001 511 AA 340 AA 514 AA 341 AA 344 503 511 350 513 AA 343 AA 322 332 345 346 514 339 AA 342 326 333 346 331 311 AA AA AD 307 AD AC 312 AB 354 327 308 325 AD AA AD 337 AA 504 CLASS GREASE OIL PART NO. MARK G-555G AA G-488M AB FL-721 AC MG-33 AD FL OIL No. 6115 BA NOTE: Applying positions AA, AB, AC, AD and BA for the grease or oil are displayed for this section.
CHASSIS REPLACEMENT PARTS LIST REF. NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO.
ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO.
2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 737004 Printed in Singapore
