HV-FX8200 HV-FX7700 HV-FX710 HV-GX955 HV-GX935 HV-GX930 HV-FX8200 HV-FX7700, FX710 K K K K K K HV-GX955, GX935, GX930 SERVICE MANUAL STEREO VIDEO CASSETTE RECORDER <8200/7700/710> VIDEO CASSETTE RECORDER <955/935/930> BASIC VIDEO MECHANISM :D33K-4HF/PAL-HREW(6721R-0251A)<8200> :D33K-4HF/PAL(6721R-0250A)<7700/710> :D33K-2HD/NP-VCR(6721R-0205A)<955/935/930> S/M Code No. 09-007-347-2R4 DA TA RE VI SIO N This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No.
TABLE OF CONTENTS SPECIFICATIONS ............................................................ 3 ACCESSORIES LIST ....................................................... 3 DISASSEMBLY INSTRUCTIONS ..................................... 4 SERVICE POSITION ........................................................ 5 VCR TEST TAPE INTERCHANGEABILITY TABLE ........ 6 ELECTRICAL MAIN PARTS LIST .............................. 7 ~ 9 TRANSISTOR ILLUSTRATION ........................................
SPECIFICATIONS Video recording system Rotary 2 head helical scanning system Video head Double azimuth 4 heads Tuner system Frequency synthesized tuner TV system I Video signal system PAL color signal, 625 lines, 50 fields Usable cssettes VHS video cassettes Recording/playback time PAL SP: 5 hours max. with E-300 tape. LP: 10 hours max. with E-300 tape NTSC (Playback only) SP: 3 hours 30 minutes max. with T-210 tape LP: 7 hours max. with T-210 tape EP: 10 hours 30 minutes max.
DISASSEMBLY INSTRUCTIONS 1. Top Case Removal 1) Remove 4 screws holding the top case. 4. Mechanism Removal (see Fig. 3) 1) Disconnect the drum FF cable from the connector (PMD01) on the Main C.B. 2) Disconnect the ACE head FF cable from the connector (P3D02) on the Main C.B. 3) Remove 6 screws A . 2. Panel Front Removal (see Fig. 1) 1) Release 7 tabs, and then remove the panel front. P3D02 PMD01 A FF CABLE FF CABLE PANEL FRONT A A TAB Fig. 1 Fig. 3 3. Key1 C.B. and Key2 C.B. Removal (see Fig.
SERVICE POSITION To set the mechanism to the service position in active status: Insert a spacer as shown below: The service position can be set in the stable status without any defective contact. MAIN C.B D33 MECHA SPARSER 60mm MAIN C.B D33 MECHANISM REAR PANEL SPARSER Location Install spacers at locations (A) and (B).
VCR TEST TAPE INTERCHANGEABILITY TABLE There are two types of the new allgnment 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) allgnment tapes have the same contents as the previous tapes.
ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI NO. DESCRIPTION REF.
REF. NO PART NO. KANRI NO. DESCRIPTION REF. NO PART NO. C824 C825 C827 C828 C832 87-015-681-080 87-015-684-080 87-015-681-080 87-015-684-080 87-015-684-080 CAP,E CAP,E CAP,E CAP,E CAP,E 10-16V<82,77,71> 47-16V<82,77,71> 10-16V<82,77,71> 47-16V<82,77,71> 47-16V PMC01 PMD01 PMK01 PMK01 PMK02 KANRI DESCRIPTION NO.
REF. NO SW902 SW903 SW903 SW904 SW904 PART NO. KANRI DESCRIPTION NO. S5-562-82C-000 SW,SKQNQED ALPS 5MM<82,77,71> S5-562-19B-000 SW,SKHV10910B<55,35,30> S5-562-82C-000 SW,SKQNQED ALPS 5MM<82,77,71> S5-562-19B-000 SW,SKHV10910B<55,35,30> S5-562-82C-000 SW,SKQNQED ALPS 5MM<82,77,71> NICAM C.B<82,77,71> C451 C452 C456 C458 C459 87-015-698-080 87-015-698-080 87-015-684-080 87-015-698-080 87-015-698-080 CAP,E CAP,E CAP,E CAP,E CAP,E 4.7-50V<82> 4.7-50V<82> 47-16V<82> 4.7-50V<82> 4.
WIRE HARNESS DIAGRAM P7M01 PM701 1 1 A.MUTE "H" 2 TU.A.L 2 3 TU.A.R 3 4 BBE A.OUT.R 4 5 NICAM C.B <8200,7700,710> AUDIO R.IN 5 6 NC 6 7 12VT 7 8 BBE A.LOUT 8 9 AUDIO L.IN 9 P7M02 1 GND PM702 1 2 DATA 2 3 CLK 3 4 GND 4 5 SIF 5 6 5V 6 7 BBE "L" 7 8 TU.MONO.AUD 8 9 GND 9 PMD01 PDM01 1 D.CTL 1 2 M.GND 2 3 DFG 3 4 12V 4 5 PG 5 6 GND 6 7 5.1V 7 PMC01 <8200,7700,710> PKM02 <8200> <7700,710> KEY 2 C.B 1 2 3 4 5 MAIN C.
3 4 2 11 BK WH (BR) (BL) PW101 AC INPUT ! F101 ! ! + NOTES : ! R101 ! C113 (C101,L102, C102) LINE FILTER BLOCK R141,142,143 D141 1 BD101 (D102,R104, C105,C106) Drive Block FET141 ! 3 4 1 2 IC102 4 6 ! HOT CIRCUIT Symbol denotes DC chassis ground. Symbol denotes AC ground.
BLOCK DIAGRAM-2 (AUDIO SIGNAL SECTION) BUF.V.IN To POWER/ TUNER SECTION TU.V.IN TU.A.L MOD.A.OUT JK901(1/2) VIDEO OUT 1 21 20 VIDEO OUT 2 19 VIDEO OUT3 18 17 <955> 16 15 12 11 10 9 8 AUDIO OUT 1 EURO AV1 AUDIO/VIDEO 14 13 To AUDIO/ VIDEO SECTION 7 6 AUDIO OUT 2 5 4 AUDIO OUT 3 3 2 1 MONO A.IN <955> 42 Q901 41 OSD V.
BLOCK DIAGRAM-3 (AUDIO SIGNAL-Hi-Fi AUDIO SECTION) TU.V.IN BUF.V.IN IIC CLK To IIC DATA SYSTEM CONTROL/ A.ENV SERVO/OSD LP REC MUTE "H" SECTION A.H/SW AUDIO <7700,710> IC801 TDA9605H Hi-Fi AUDIO PROCESS NICAM C.B IC9F1 NJM2233S INPUT SELECT SW IC451 BA3880AS V,2 HiFi PB A HiFi PB B 13 IN.R OUT.L 22 SORTIE G OUT(L) SORTIE D JK901(1/2) 21 20 8 19 V.OUT 21 IN.L OUT(R) <8200> <8200> To CYL.HEADS To POWER/ TUNER SECTION 4 18 V.1 OUT.R 12 17 6 16 15 9 5 TU.A.
BLOCK DIAGRAM-4 (VIDEO SECTION) IC301 LA71598M AUDIO/VIDEO PROCESSOR Q304 74 57 FROM CYL.HEADS LP ’B’ PB 85 SP ’B’ PB 88 SP ’A’ PB 91 52 MAIN CONV ACC 82 LP ’A’ PB 59 54 51 61 C. COMB 72 71 LPF 46 Y DELAY 45 Q303 C LPF 43 41 NL DE EMP YNR FM DEM PB FM AGC <8200,7700,710> V.
BLOCK DIAGRAM-5 (MONO AUDIO SECTION) IC301 LA71598M AUDIO/VIDEO PROCESS <955,935,930> FL301,Q311 AUDIO IN 2 78 AUDIO IN 1 76 LINE AMP ALC <955> AUDIO IN 3 AUTO BIAS REC AMP MUTE 99 CONTROL Q307 BIAS OSC 80 To Hi-Fi AUDIO/ SCART SECTION 96 98 7 6 AUDIO REC/PB HEAD :REC AUDIO SIGNAL IC301 LA71598M AUDIO/VIDEO PROCESS 1 AUDIO REC/PB HEAD 100 4 EQ AMP Q308, Q309, Q310 6 LINE AMP Vref MUTE 5 99 REC "H" SERIAL DECODER AUDIO BIAS 24 23 DATA CLK To SYSTEM CONTROL/ SERVO/OSD SE
18 144 To Hi-Fi AUDIO/ SCART SECTION 27 To SYSTEM CONTROL/ SERVO/OSD SECTION To POWER SECTION To Hi-Fi AUDIO/ SCART SECTION :REC VIDEO SIGNAL :PB VIDEO SIGNAL FM1/AM FM2 NICAM A NICAM B IDENT SCARTL SCARTR SCART1 R SCART1 L 18,432MHz Audio PLL :REC AUDIO SIGNAL :PB AUDIO SIGNAL Demodulator A/D A/D D/A D/A SCART Switching Facilities D/A LOUDSPEAKER L X751 DSP D/A LOUDSPEAKER R MSP3417 <8200,7700,710> To POWER SECTION 19 94 59 60 <955,935,930> 141 5.
BLOCK DIAGRAM-7 (SYSTEM CONTROL/SERVO SECTION) MAIN (SYSTEM CONTORL/SERVO/OSD SECTION)C.B <8200,7700,710> <8200> KEY1 KEY2 9MT168GK 97 16:9 "H" 98 SCART "H" 41 S2.V.IN "H" 949 72,73 To LOADING MOTOR To Hi-Fi AUDIO/ SCART SECTION <8200> UPD16311GC DISPLAY DRIVER OSD V.OUT 90 LINK DATA 53,145,501 P18 P17 83,107 19 104 <7700,710> JK9K3 AUDIO-R 103 To LOWER DRUM PDM01 JK9K2 AUDIO-L R/FIND MUTE "H" AV3 IN R.
BLOCK DIAGRAM-8 (SYSTEM CONTROL/SERVO SECTION) 7MT229GK KEY1 KEY2 MAIN (SYSTEM CONTORL/SERVO/OSD SECTION)C.B <955,935,930> 949 72,73 To LOADING MOTOR 83,107 19 OSD V.OUT 90 LINK DATA To SCART SECTION P18 P17 UPD16311GC DISPLAY DRIVER 104 103 To LOWER DRUM PDM01 To POWER/ TUNER SECTION R/FIND MUTE "H" R.FINDER LINK DATA(TX) 84,108 9 IC501 HD6432197XA04F SYSCON/SERVO/OSD PROCESS 50 85 To CAPSTAN MOTOR PCM01 29 949 28 38 To AUDIO/ VIDEO SECTION A.LEVEL(R) A.
SCHEMATIC DIAGRAM-1 (POWER/TUNER/NICAM SECTION) MAIN(POWER/TUNER SECTION)C.
SCHEMATIC DIAGRAM-2 (POWER/TUNER SECTION) MAIN(POWER/TUNER SECTION)C.
VOLTAGE CHART-2 (AUDIO/VIDEO SECTION) IC301 PIN PB REC PIN PB 1 2.44 REC PIN 2.42 21 2.41 PB REC PIN 2.52 41 2.93 2.92 PB 61 3.43 3.43 81 0 0 2 2.44 2.42 22 0 0 42 3.16 3.14 62 3.31 3.32 82 0.03 0.04 3 2.46 2.44 23 4.48 4.52 43 3.02 2.05 63 5 5 83 0 0 4 2.45 2.35 24 4.19 4.23 44 64 5 5 84 0.03 0.03 5 0.09 0.88 25 1.69 1.69 45 2.34 2.33 65 2.03 2.03 85 0.03 0.03 6 2.46 2.34 26 0.05 0.06 46 1.46 1.44 66 2.66 2.
WAVEFORMS-1 (AUDIO/VIDEO SECTION) 1 2 IC301 Pin 38, 1Vp-p Video in IC301 Pin 20 500mVp-p PB mode 5 3 IC301 Pin 6 2.2Vp-p REC mode 7 IC301 Pin 29 2.1Vp-p PB mode 10 9 13 IC301 Pin 67 600mVp-p PB mode 11 14 IC301 Pin 66 600mVp-p PB mode 8 IC301 Pin 41 400mVp-p PB mode IC301 Pin 24 5Vp-p PB/REC modes IC301 Pin 23 5Vp-p PB/REC modes IC301Pin 7 1.4Vp-p REC mode IC301 Pin 28 4.2Vp-p PB/REC modes 32, 31 6 4 12 IC301 Pin 71, 340mVp-p REC mode 15 IC301 Pin 11 3.
SCHEMATIC DIAGRAM-3 (AUDIO/VIDEO SECTION) R321 1.2K:<8200,7700710> 1k:<955,935,930> MAIN(AUDIO/VIDEO SECTION)C.B (4/10) (5/10) (6/10) (7/10) 936 A.IN2 R3A1 47K:<8200,7700,710> JUMPER:<955,935,930> To FULL ERASE HEAD R3B1 5.1K:<8200,7700,710> 4.7K:<955,935,930> To SYSTEM CONTROL/ SERVO/OSD SECTION AUDIO/VIDEO PROCESSOR (2/10) To AUDIO/CTR HEADS 933 A.IN3 (3/10) 11 11 8 13 12 12 12 <8200,7700,710> <8200,7700,710> To Hi-Fi AUDIO/ SCART SECTION 16 7 To CYL.
SCHEMATIC DIAGRAM-4 (Hi-Fi AUDIO SCART SECTION) To POWER/ TUNER SECTION MAIN(Hi-Fi AUDIO/SCART SECTION)C.B <8200,7700,710> <8200> To AUDIO/ VIDEO SECTION AUDIO C8R3 10K OUT(R) SORTIE G OUT(L) SORTIE D To SYSTEM CONTROL/ SERVO/OSD SECTION GDZJ5.1B GDZJ5.
VOLTAGE CHART-3 (Hi-Fi AUDIO/SCART SECTION) SCHEMATIC DIAGRAM-5 (SCART SECTION) IC801 3.6 4.4 4.2 0.9 5.1 0.0 0.0 0.7 0.6 0.7 11.9 3.9 3.9 3.9 0.8 3.9 3.9 0.0 0.8 3.9 3.9 3.9 REC 1.9 PB 4.4 4.1 0.9 5.0 0.0 4.2 4.3 4.2 4.3 12.0 3.9 3.9 3.9 0.8 3.9 3.9 0.0 0.8 3.9 3.9 3.9 40 35 MAIN(SCART SECTION)C.B <955,935,930> 25 30 IC801(TDA9605H) 3.8 3.9 3.9 3.9 5 3.8 REC 3.8 3.9 3.9 3.9 3.8 PB 3.8 3.8 3.8 3.8 10 3.8 3.8 0.0 3.9 0.
SCHEMATIC DIAGRAM-6 (SYSTEM CONTROL/SERVO SECTION) MAIN(SYSTEM CONTROL/SERVO/OSD SECTION)C.B <8200,7700,710> (3/3) 9MT168GK (9/9) <8200> DISPLAY TOH-48A94B2-C To KEY 1 C.B PKM01 KRC103M To KEY 2 C.B PKM02 KTA1273 <8200> LOADING MOTOR DRIVE -10PC <8200> <7700,710> <7700,710> (4/5) (1/5) To LOADING MOTOR GDZJ6.8C (8/9) (2/5) (2/9) (1/5) (2/5) (6/9) J502 EEPROM <7700,710> (7/9) (3/5) To AUDIO/VIDEO SECTION 64 65 82 77 141 (5/5) RESET R/FIND MUTE"L" R.
VOLTAGE CHART-4 (SYSTEM CONTROL/SERVO SECTION) IC501 PIN PB PB REC PIN PB PB REC PIN PB REC 1 0 REC PIN 0 21 2.45 2.47 41 0 0 61 5.15 5.15 81 3.37 3.37 101 0 1.44 2 2.54 2.42 22 2.42 2.42 42 0 0 62 5.0 5.0 82 5.26 5.26 102 5.25 5.25 3 2.54 2.44 23 0 0 43 63 PULSE PULSE 83 2.5 2.5 4 2.54 2.35 24 2.30 0 44 64 PULSE PULSE 84 5 2.54 0.88 25 0.8 (MONO) 0 45 6 2.55 2.34 26 5.28 5.27 46 0 0 66 7 2.65 2.34 27 4.67 4.71 47 0 5.
WAVEFORMS-2 (SYSTEM CONTROL/SERVO SECTION) 1 2 V.
SCHEMATIC DIAGRAM-7 (SYSTEM CONTROL/SERVO SECTION) MAIN(SYSTEM CONTROL/SERVO/OSD SECTION)C.B <955,935,930> (3/3) 7MT229GK (9/9) DISPLAY To KEY 2 C.B PKM02 To KEY 1 C.B PKM01 LOADING MOTOR DRIVE -10PC (4/5) (1/4) To LOADING MOTOR GDZJ6.8C (2/9) (8/9) (2/4) (1/4) (2/4) (6/9) EEPROM (7/9) (3/5) To AUDIO/VIDEO SECTION 64 65 82 77 141 (5/5) RESET R/FIND MUTE"L" R.FINDER 6 5 4 3 2 1 (9/9) <935,930> PMJ01 FLD DATA MS FLD DATA SW MDO RES 5.
FL DISPLAY-1 FL DISPLAY-2 • GRID ASSIGNMENT • GRID ASSIGNMENT • ANODE CONNECTION • ANODE CONNECTION 41 42
WIRING-1 (MAIN C.B) 1 2 3 4 5 6 7 9 8 11 10 12 13 14 JK801 To CAPSTAN MOTOR PCM01 AC INPUT A MAIN C.B To LOWER DRUM PDM01 To LOADING MOTOR PMC01 AUDIO To AUDIO/CTL HEAD PMD01 PML01 ENTREE ANTENNE AERIAL To CYL.HEADS P3D02 JK901(1/2) EURO AV1 AUDIO/VIDEO P3D01 B C E JK901(2/2) EURO AV2 DECODER SORTIE G OUT L SORTIE D OUT R SORTIE ANTENNE RF.
WIRING-2 (MAIN C.B) 1 2 3 4 AC INPUT A 5 To CAPSTAN MOTOR PCM01 To LOADING MOTOR PMC01 PML01 MAIN C.B 6 To LOWER DRUM PDM01 7 9 8 To AUDIO/CTL HEAD PMD01 11 10 JK901(1/2) EURO AV1 AUDIO/VIDEO P3D01 JK901(2/2) EURO AV2 DECODER SORTIE ANTENNE RF.OUT (1/2) 1 J9B2 B C E B 14 ENTREE ANTENNE AERIAL B C E <955> 13 <955> To CYL.
SCHEMATIC DIAGRAM-10 (KEY2 SECTION) SCHEMATIC DIAGRAM-8 (KEY1 SECTION) KEY 1 C.B <8200,7700,710> SH9V1 PLAY KEY 2 C.B <8200,7700,710> SW907 REW/ .REW/ SW908 PLAY SW909 /F.FWD ONE-TOUCH PLAYBACK SW901 SW902 CHANNEL CHANNEL SW903 ONE-TOUCH PLAYBACK /F.FWD JK9K3 SG5311 AUDIO-R SH9V1 JK9K2 AUDIO-L JK9K1 VIDEO SRC1201 ( ( SW905 REC/OTR SW906 <7700,710> PAUSE/STILL SW910 STOP <8200> SW911 EJECT <8200> <7700,710> SW904 To MAIN C.
WIRING-3 (KEY1 C.B) 3 4 5 7 6870R1268AA SH9V1 PLAY 10 11 12 13 KEY 1 C.B SW909 /F.FWD SW907 SW911 EJECT /REW SW907 /REW SW909 /F.FWD SW908 PLAY R904 5 R903 SW906 PAUSE/STILL SW910 STOP/EJECT SW905 REC/OTR SW910 STOP SW910 R902 C924 PKM01 10 R905 SH9V1 SW905 14 SW905 REC/OTR REW/ SW911 EJECT SW911 R906 C922 1 C920 7 R901 D 9 SW908 PLAY C921 SW905 REC/OTR /F.FWD R999 B 8 KEY 1 C.B KEY 1 C.
WIRING-9 (NICAM C.B) 1 2 3 4 5 A NICAM C.B B <8200> C E C B E C B E C B D B C E E C B To MAIN C.B PM701 To MAIN C.
ADJUSTMENT Test Equipment • Oscilloscope • AC Millivolt Meter • Test Tape TTV-P1 Adjustment Location MAIN C.
1. Servo Adjustment 1) PG Adjustment MODE MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION PLAY (TTV-P1) VIDEO OUT H/SW (W502, W503) 'PLAY' KEY (SET) + 'O' KEY (REMOCON) 6.5H ± 0.5H • Adjustment Procedure 1. Insert the PAL SP Test Tape (TTV-P1) and play. Note - Adjust the distance of X, pressing the Tracking(+) or Tracking(-) when the “ATR” is blink after the PAL SP Test Tape is inserted. 2. Connect the CH1 of the oscilloscope to the H/SW (W502, W503) and CH2 to the Video Out for the VCR. 3.
IC DESCRIPTION IC, HD6432197X Pin No.
Pin No. Pin Name I/O Description 43 R/C IN I 44 S Canal I/O 45 N.C – Not connected 46 VCR 'H' O TV/VCR control output 47 REC 'H' O Recording current control output 48 OSD 'H' O OSD color control in YC SECAM/MESECAM mode 49 T/UP REEL I Take-up reel input 50 CAP. REC 'H' O Capstan forward/reverse control output 51 TOP SENSOR I Top sensor input 52 SEARCH 'H' O Capstan Vcc control output 53 PLUS2 DATA O VCR Plus+ II control code output 54 R.
Pin No. Pin Name I/O Description 84 CAP ACCEL I/O Capstan control output during slow 85 I-LIMIT I/O Output to control capstan current 86 S. MONITOR2 O Servo monitor 2 87 S. MONITOR1 O Servo monitor 1 88 CST SW I CST SW/REC Tab input 89 RX I AV link data input 90 TX O AV link data output 91 BBE 'L' O BBE: AIWA RGB PATH: AKAI 92 SUP. REEL I Supply reel input 93 TU. SEC VL 'H' O Tuner SECAM VHF-L band switching control 94 TU.
IC, µPD16311GC-AB6 Pin No. Pin Name I/O 1~4 SHTL1 ~SHTL4 I Description 4-bit general-purpose input pins Serial data output. 5 DATA OUT O Lower bits are first output synchronized with the trailing edge of shift clock. (The output is Nch open drain.) 6 DATA IN I Serial data input. Lower bits are first input synchronized with the leading edge of shift clock.
277 58 (FX8200 Model) 283 P.C.B 457 A43 A00 457 457 457 457 280 284 457 P.C.B 452 283 330 (FX7700/FX710 Models) 260 250 462 A43 284 280 DIG501 NER ) 323 1(TU 283 320 452 A43 P.C.
MECHANICAL MAIN PARTS LIST 1/1 REF. NO 250 260 275 275 277 ! PART NO. KANRI DESCRIPTION NO.
101 426 110 103 60 116 115 117 104 105 A21 100 112 113 106 114 107 A23 108 032 109 426 A22 MECHANISM EXPLODED VIEW 1/3
MECHANISM MAIN PARTS LIST 1/3 REF. NO PART NO. KANRI NO.
031 024 011 62 017 012 504 022 401 505 003 003 019 (GX990, GX935, GX930 Models) 401 018 023 (FX8200, FX7700, FX710 Models) 001 401 002 014 004 016 A03 406 409 406 007 406 013 006 032 028 015 504 029 025 020 A04 027 026 021 009 MECHANISM EXPLODED VIEW 2/3
MECHANISM MAIN PARTS LIST 2/3 REF. NO 001 001 001 001 002 PART NO. KANRI DESCRIPTION NO.
053 054 426 060 64 062 032 062 056 052 10, FX7 , 700, GX935 ) 7 X , F ( els 55 GX9930 Mod GX 055 063 del) 0 Mo 519 20 (FX8 061 517 518 051 057 058 059 410 518 064 077 066 067 065 070 A11 078 426 069 068 A12 079 MECHANISM EXPLODED VIEW 3/3
MECHANISM MAIN PARTS LIST 3/3 REF. NO PART NO. KANRI NO.
DECK MECHANISM PARTS LOCATIONS Top View Pracedure Starting No.
DECK MECHANISM DISASSEMBLY (S2) Stator (S2) (S3) Drum Motor (S3) Rotor Drum Sub Assembly (Fig. A-1-1) Drum FPC (S1) (S1) Optional Parts Holder FPC or (only for 2HD Models) (S1) or Holder FPC Holder FPC (only for 4HD-Mono Models) H1 (only for 4HD-Hi-Fi Models) Cap FPC (Fig. A-1-1) Fig. A-1 1. Drum Assembly (Fig. A-1-1) (Fig. B-1) 1) Unhook the (H1) on the back side of the Chassis and separate the Cap FPC. 2) Remove three Screws (S1) and lift up the Drum Assembly.
DECK MECHANISM DISASSEMBLY H1 H2 Plate Assembly Top (A) (B) (Fig. A-2-1) Holder Assembly CST Lever Stopper(R) (Fig. A-2-2) Arm Assembly F/L (Fig. A-2-6) Arm F/L Lever Assembly S/W (Fig. A-2-7) (H5) (S4) Bracket Side (L) (S4) (Fig. A-2-4) Groove Gear Rack F/L Groove Bracket Assembly Door (For Jog Shuttle Models) H3 Guide CST (Fig. A-2-5) (Fig. A-2-3) Fig.
DECK MECHANISM DISASSEMBLY 2. Plate Assembly Top (Fig. A-2-1) 1) Unhook the (H1) and separate the Left Side. 2) Unhook the (H2) and lift up the Plate Assembly Top. NOTE (1) When reassembling, confirm (A),(B) Part of the Plate Assembly Top is inserted to the (L),(R) Grooves of the Bracket Side(L) and Bracket Assembly Door. (H4) (H3) Bracket Side (L) Plate Assembly Top Bracket Assembly Door 5. Bracket Side(L) (Fig. A-2-4)/ Bracket Assembly Door (Fig.
DECK MECHANISM DISASSEMBLY Arm Assembly Cleaner (A) (S5) (Fig. A-3-1) Base Assembly A/C Head ( H1) (Fig. A-3-3) (Fig. A-3-2) Head F/E (For Jog Shuttle Models) Fig. A-3 8. Arm Assembly Cleaner(Fig. A-3-1) NOTE 1) Break away the (A) part shown above Fig. A-3-1 from the Embossing of the Chassis in the clockwise direction and lift up the Arm Assembly Cleaner. (1) Place the Spring Lever S/W of the above (No.1) as original position. 9. Head F/E (Fig.
DECK MECHANISM DISASSEMBLY Spring S Brake Brake Assembly S (Fig. A-4-1) (A) Arm Assembly Tension Spring Tension Reel T (C) (Fig. A-4-5) Band Assembly Tension Reel S (Fig. A-4-3) Spring T Brake B Brake Assembly T (Fig. A-4-2) (Fig. A-4-4) (For Jog Shuttle Models) Fig. A-4 11. Brake Assembly S (Fig. A-4-1) 13. Arm Assembly Tension (Fig. A-4-3) 1) Remove the Spring S Brake. 2) Hold the (A) part shown above Fig. A-4-1 and turn to the clockwise direction, and then lift up the Brake Assembly S.
DECK MECHANISM DISASSEMBLY (D) Opener Lid (Fig. A-5-3) (C) Arm Assembly T/up (Fig. A-5-4) Arm Assembly Pinch Base Assembly P4 (Fig. A-5-5) Support CST (B) (Fig. A-5-1) (A) (Fig. A-5-2) Fig. A-5 15. Support CST (Fig. A-5-1) NOTE 1) Break away the (A) part shown above Fig. A-5-1 from the Embossing of the Chassis in the clockwise direction, and lift up the Support CST. (1) When reassembling, confirm the opener lid is placed on the Hook(H1) of the Arm Assembly T/UP as below figure. 16.
DECK MECHANISM DISASSEMBLY Belt Capstan (Fig. A-6-1) (B) Motor Capstan (A) Washer(W1) Clutch Assembly D33-K (Fig. A-6-3) (Fig. A-6-2) Washer(W2 ) Optional Parts Gear H-Up/D-K Lever F/R (For Hi-Rewind Models) (Fig. A-6-4) Hook(H1) or Gear Up/D-K (For Normal Models) Spring Up/D (C) Brake Assembly Capstan (For 4HD Models) (Fig. A-6-5) (B ') ( A') (For Jog Shuttle Models) (For Jog Shuttle Models) (S6) Fig. A-6 20. Belt Capstan (Fig. A-6-1)/ Motor Capstan (Fig.
DECK MECHANISM DISASSEMBLY Brake Assembly Capstan Hole (A)+(B) Barke Assembly Capstan Gear Cam (H2) (For 4HD Models) Spring Capstan (Fig. A-7-4) Hole (A) Guide Rack F/L (H1) (S4) (S4) Barke Assembly Jog (For Jog Shuttle Models) (Fig. A-7-2) Gear Rack F/L (Fig. A-7-1) Gear Cam Hole (B) (Fig. A-7-3) Fig. A-7 (For Jog Shuttle Models) 24. Bracket Assembly Jog (Fig. A-7-1) (Jog shuttle model option) Hook(H2) 1) Remove the Screw(S4) and lift up the Bracket Assembly Jog. Hook(H2) 25.
DECK MECHANISM DISASSEMBLY Washer (W1) Gear Drive (Fig. A-8-1) Gear Cam Hole (B) (Fig. A-8-2) Brake Assembly Capstan (For 4HD Models) Gear Connector Hole (A) Hole (A')+(A) (Fig. A-8-3) Gear Connector Hole (B') Hole (A') Chassis H1 Bracket Assembly L/D Motor Hole (B')+(B) H2 (Fig. A-8-4) Gear Cam Fig. A-8 (Fig. B-3) 27. Gear Drive (Fig. A-8-1)/ Gear Cam (Fig. A-8-2)/ Gear Connector (Fig. A-8-3) Gear Cam (C) 1) Remove the Washer(W1) and lift up the Gear Drive. 2) Lift up the Gear Cam.
DECK MECHANISM DISASSEMBLY (W1) Washer Gear Sector (S4) (Fig. A-9-1) Base Tension Plate Slider (Fig. A-9-2) (Fig. A-9-3) Lever Tension (Fig. A-9-4) (A) (For Jog Shuttle Models) Fig. A-9 29. Gear Sector (Fig. A-9-1) NOTE 1) Remove the Washer(W1) and lift up the Gear Sector. 30. Base Tension (Fig. A-9-2)/ Plate Slider (Fig. A-9-3)/ Lever Tension (Fig. A-9-4) (1) When reassembling, turn the Lever Tension to the clockwise direction in maximum.
DECK MECHANISM DISASSEMBLY (Fig. A-10-1) Gear Assembly P3 H1 Gear Assembly P3 H2 Gear Assembly P2 (Fig. A-10-2) (A) (B) (A) Gear Assembly P2 (B) Chassis Optional Parts Base Assembly P2 Arm Assembly Idler or Arm Assembly Idler Jog (For Normal Models) (For Jog Shuttle Models) (Fig. A-10-4) (Fig. A-10-5) (H3) (Fig. A-10-3) Base Assembly P3 Fig. A-10 31. Gear Assembly P3 (Fig. A-10-1)/ Gear Assembly P2 (Fig. A-10-2) NOTE 1) Unhook the two Hooks(H1) and lift up the Gear Assembly P3.
DECK MECHANISM ADJUSTMENT • Tools and Fixtures for Service SR K 1. Cassette Torque meter 1. SRK-VHT-303(Not SVC part) -V HT -S 2. Alignment tape (See figure below) 3. Torque gauge 3. 600g.Cm ATG 5. Post height adjusting driver Parts No: SV-TGO-030-000 (SMALL) SV-TGO-020-000 (LARGE) 6. + Type driver (ø 5) 300 250 200 150 SR K 0 50 VID CAS EO S TOR ETTE Q MET UE VHT ER -303 -T K- V HT0 SR 50 100 150 200 300 250 4.
DECK MECHANISM ADJUSTMENT 1.Mechanism Alignment Position Check Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected. Test Equipment/ Fixture Test Conditions (Mechanism Condition) Blank tape Eject Mode (with Cassette ejected) 1) Turn the Power S/W on and eject the Cassette by pressing the Eject Button. 2) Remove the Top Cover and Plate Assembly Top, visually check if the Gear Cam Hole is aligned with the Chassis Hole as below Fig. C-2.
DECK MECHANISM ADJUSTMENT Cassette without Tape. Cover the Holes of the End Sensors at the both sides of the Bracket Side(L) and Bracket Assembly Door to prevent a light leak. Then The Deck Mechanism drives to the Stop Mode. In this case, The Deck Mechanism can accept inputs of each mode, however the Rewind and Review Operation can not be performed for more than a few seconds because the Take-up Reel Table is in the Stop State and can not be detected the Reel Pulses. 2.
DECK MECHANISM ADJUSTMENT 4.Guide Roller Height Adjustment Purpose: To regulate the Height of the Tape so that the Bottom of the Tape runs along the Tape Guide Line on the Lower Drum. 4-1. Preliminary Adjustment Test Equipment/ Fixture • Post Height Adjusting Driver Test Conditions (Mechanism Condition) • Play or Review Mode Adjustment Procedure Adjustment Point • Guide Roller Height Adjustment screws on the Supply and Take-Up Guide Rollers.
DECK MECHANISM ADJUSTMENT 5. Audio/Control (A/C) Head Adjustment Purpose: To insure that the Tape passes accurately over the Audio and Control Tracks in exact Alignment in both the Record and Playback Modes. 5-1. Preliminary Adjustment (Height and Tilt Adjustment) Perform the Preliminary Adjustment, when there is no Audio Output Signal with the Alignment Tape.
DECK MECHANISM ADJUSTMENT slowly turn the Tilt Adjustment Screw(C) in the Counterclockwise direction. 5-2. Confirm that the Tape passes smoothly between the Take-up Guide and Pinch Roller(using a Mirror or the naked eye). 1) Afetr completing Step 5-1.(Preliminary Adjustment), check that the Tape passes around the Take-up Guide and Pinch Roller without Folding or Curling at the Top or Bottom.
DECK MECHANISM ADJUSTMENT 7. Adjustment after Replacing Drum Assembly (Video Heads) Purpose: To correct for shift in the Roller Guide and X value after replacing the Drum.
MAINTENANCE/INSPECTION PROCEDURE 1 Check before starting repairs The following faults can be remedied by cleaning and oiling. Check the needed lubrication and the conditions of cleanliness in the unit. Check with the customer to find out how often the unit is used, and then determine that the unit is ready for inspection and maintenance. Check the following parts.
MAINTENANCE/INSPECTION PROCEDURE 4. Supplies Required for Inspection and Maintence 2. Required Maintenance The recording density of a VCR(VCP) is much higher than that of an audio tape recorder. VCR(VCP) components must be very precise, at tolerances of 1/1000mm, to ensure compatiblity with other VCRs. If any of these components are worn or dirty, the symptoms will be the same as if the part is defective.
MAINTENANCE/INSPECTION PROCEDURE (2) Periodic greasing Grease specified locations every 5,000 hours. 5-2) Greasing (1) Greasing guidelines Apply grease, with a cleaning patch. Do not use excess grease. It may come into contact with the tape transport or drive system. Wipe any excess and clean with clean ing patch wetted in Isopropyl Alcohol.
MECHANISM TROUBLESHOOTING GUIDE 1.Deck Mechanism A. Auto REW doesn't work. YES Is the output of END sensor of supply side "H"? “H”: more than 3.5V “L”: less than 0.7V~1V YES NO Is the Vcc. voltage of End sensor 5V? NO Check the syscon power. YES Replace End sensor. Is the voltage across IR LED between 0.8~1.5V? YES Replace LED. NO Check syscon circuit. B. No F/R modes. YES Is the present mode, F/R Mode? NO Is the mode SW assembled correctly (Refer to Page 79.
MECHANISM TROUBLESHOOTING GUIDE C. AUTO STOP. (PLAY/CUE/REV) Check aligment positions (page 79) Check spring Pinch. In Play/Cue/Rev is the pinch roller in contact with the capstan shaft. NO Is the output of DFG, DPG OK? YES Are there T/up and supply reel pulses. Replace Drum Motor. NO YES NO Check Servo, Syscon. YES Check the Syscon, µ-COM. Replace Reel Sensor. D. No cassette loading. Insert the cassette. YES Does the lever S/W work normally. NO Check Cassette Carry Assembly.
MECHANISM TROUBLESHOOTING GUIDE E. In PB mode Tape Presence not sensed. Is the Pinch Roller attached to the Capstan Motor Shaft? NO Check Alignment positions (page 79) YES Does the T/Up Reel turn? NO NO Is the Belt ok? YES Replace the Belt. YES Check the clutch and the Idler Assembly.
MECHANISM TROUBLESHOOTING GUIDE 2. Front Loading Mechanism A. Cassette cannot be inserted. Does the Lever Switch work? NO Is the Lever Switch Spring damaged or omitted? YES Replace or add the Lever Switch Spring. NO YES Does the F/L switch work normally? NO Replace F/L Switch. YES Is the Vcc of Main P.C.Board 5V? YES Is the voltage between cassette switch and GND on Main P.C.Board 5V? YES Check syscon circuit. NO Check power circuit. NO Check Mode switch location and syscon circuit.
MECHANISM TROUBLESHOOTING GUIDE C. Cassette will not load. Does the CST insert? YES Does the opener Lid work? YES NO Replace the Opener Lid. Does the Gear Rack F/L work? YES NO Replace the Rear Rack F/L. Does the Opener Door work? YES NO Does the Arm Assembly F/L work? YES Is the opener Door assembled correctly? NO Does the L/D Motor work? YES Replace the Arm Assembly F/L. NO Does the Holder Assembly Cassette move the Arm Assembly F/L? YES Check the power of L/D Motor.
2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 H251701 Printed in Singapore
