DV-L70U SERVICE MANUAL SX9Q8DV-L70U/ SERVICE MANUAL PORTABLE DVD VIDEO PLAYER MODEL DV-L70U PORTABLE DVD VIDEO PLAYER In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified be used. CONTENTS MODEL DV-L70U Page 1. IMPORTANT SAFEGUARDS AND PRECAUTIONS ...................................................................... 1-1 2. FEATURES/3. SPECIFICATIONS ......................
DV-L70U 1. IMPORTANT SAFEGUARDS AND PRECAUTIONS IMPORTANT SERVICE NOTES measurements for each exposed part. Any reading of 0.45V rms (this corresponds to 0.3mA rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the DVD player to the owner. BEFORE RETURNING THE DVD PLAYER Before returning the DVD player to the user, perform the following safety checks. 1.
DV-L70U 1-2
DV-L70U åCAUTION BEFORE BATTERY DESTROY Ë NICKEL-CADMIUM BATTERY The following program is available in the United States. Please consult local environmental authorities concerning the availability of this or other programs in your area. The RBRCTM Seal SHARP participates in the RBRCTM* Nickel-Cadmium Battery Recycling Program in the United States.
DV-L70U 2. FEATURES 7" LCD Screen and Stereo Speakers • A big 7" LCD screen and built-in stereo speakers provide exciting DVD viewing, even without connecting to a TV. • Dolby Virtual provides high-quality surround sound. 2-WAY Power Supply • A 2-way power supply allows operation using the supplied AC adapter for indoor play, or the supplied battery pack for outdoor play. Compact, Lightweight Design • About the size of a movie DVD case, your DVD video player is designed to go along just about anywhere.
DV-L70U Audio Signals: Frequency Characteristics: Linear PCM DVD: 4Hz to 22kHz (48kHz sampling)/ 4Hz to 44kHz (96kHz sampling) CD: 4Hz to 20kHz (EIAJ) S/N Ratio: CD: 96 dB 1kHz (EIAJ) Dynamic Range: Linear PCM DVD: 96dB (EIAJ) CD: 96dB (EIAJ) Total Harmonic Distortion Ratio: 0.006% maximum (EIAJ) Power Requirements: AC Adapter: 9V DC Battery Pack:7.4V DC Power Consumption: Main Power On: 11W average (15.5W maximum) (AC Adapter) Standby: 0.
DV-L70U 4. PART NAMES For details on the use of each control.
DV-L70U 5. DISASSEMBLY METHOD 1 5-1. DISASSEMBLY METHOD 1. Remove the nine screws 1. 2. Loosen the two screws 2. 3. After opening the LCD unit, remove the hinge claw of cabinet A to detach it from cabinet B. Note: The power SW button is also removed. Be careful not to forget it when assembling the unit. 4. Remove the FFC A from the main PWB. 2 A Power SW Button 5. Remove the screws 3. Note: Check the screws before assembling because they are different depending on the right and left hinges. 6.
DV-L70U 6. ADJUSTMENT METHOD 6-1. HARNESS LIST FOR SERVICE PARTS Parts Code Price Code QCNW-8145GEZZ AQ QCNW-8146GEZZ QCNW-8147GEZZ Remarks Parts Code Price Code Remarks P.U.
DV-L70U 6-3. CHECK ITEMS OF LCD PWB SIDE 1. Power supply voltage check Adjustment Point Input Signal/Setting Adjustment Method Put voltmeters in 4PIN (GND), 5PIN (-16V) and 7PIN (13V) of TP1191. Check in the DVD mode. Check that each voltage indicates -16±1V and 13±0.5V respectively. 2. Free run check Adjustment Point Input Signal/Setting Adjustment Method Check the panel visually by connecting to the checker.
DV-L70U 1. DAC adjustment (1) TV1 adjustment Adjustment VR GAM0 Initial value "44" adjustment is unnecessary. Adjustment VR Adjustment Point Input Signal/Setting SBRI ———— It is set in "56". Adjustment VR Adjustment Point Input Signal/Setting Adjustment Method GPOS Connect the oscilloscope to COM output (6PIN of TP1901) and GND. Black-and-white 10STEP Adjust the common amplitude to 8.0±0.1Vp-p. 8.0±0.
DV-L70U Adjustment VR Adjustment Point Input Signal/Setting Adjustment Method STIN Connect the oscilloscope to 5PIN (VB) and GND of TP1901. 100% color bar Blue of the color bar and the crest value of magenta are made to become equal.
DV-L70U 6-5. CHECK AND READJUSTMENT 1. Free run check Adjustment VR Adjustment Point Input Signal/Setting Check and Readjustment R1104 Visual observation External input Check that the horizontal movement of OSD position is 1 mm or less when inputting a signal in the external input mode with no signal input. If it is more than 1 mm, adjust it so as to get 1 mm or less. Input 2.
A power source is put with pushing and . It is put with pushing a playback key and a still key. 7-1 (Last updata) (Model number) The "playback" key of the remote controller is pushed. 10000004 ∗∗∗∗∗∗∗∗ Microcord version display 10000003 ∗∗∗∗∗∗∗∗ Region code display 10000002 ∗∗∗∗∗∗∗∗ Model name Model number DVL70U 00000701 The "playback" key of the remote controller is pushed. (Region code) Region cord 00000001 (Microcode ver.) The "playback" key of the remote controller is pushed.
The "playback" key of the remote controller is pushed. Slead motor is rotated, and it moves a pickup to the circumference. Laser off mode (Light isn't sent out by laser, It is returned to the cause in power source off. How to distinguish a difference in the DVD laser and a pickup is moved to the circumference.) and the CD laser. DVD laser is lighter in comparison with the CD laser.
8-1 Check the switch SW9001. Check the FET-TrQ9006. Are the connector CN9002 and FFC wire normal? NO NO NO YES NO Check the DC jack and fuse F9001. NO Is key switch contact and installation state? YES Is the control voltage normally into the pins 95 and 96 of IC504? (95pin-key1, 96pin-key2) YES Check the peripheral circuit or replace IC504. NO Key manipulation on the DVD function side doesn't function. FLOW CHART NO.4 Replace key switch. Check the IC9001 and FET-TrQ9002.
NO NO 8-2 Is the focus control drive voltage being applied to the pins 4 and 2 of CN301? YES Check the connection of optical pickup cable. If it is normal, replace the pickup. YES Is the focus control voltage being output from the pins 24 and 25 of IC702? NO NO Is the FE signal being input to the pin 38 of IC707? NO (Check item for the symptom) YES Is the focus control signal being output to the pin NO 43 of IC707? YES The disc is not recognized.
NO IC1801 5pin C-SIG. 8-3 NO NO Is TFT LCD CONTROL PROCESSOR (IC1101) normal? YES LCD panel peripheral circuit and the existence of the failure place of the appearance are confirmed. Is the COM bias level of the LCD panel normal? YES YES YES NO Do 19 of IC1801, 21, 24 pin (VR, VG, VB) output appear? YES Is a power source being supplied to the LCD panel NO normally? VGH(+13V), VSS(-16V), VCC(-10.9V), VSH(4.8V), VGL(-10V) NO NO NO A disk is set on the tray, and played back.
8-4 Is a signal being inputted to the following, each output terminal of the integrated circuit? IC6203 12pin AUDIO(L-CH)-SIG. IC6202 12pin AUDIO(R-CH)-SIG. YES Is a signal being inputted to the following, each output terminal of the integrated circuit? IC6002 2pin AUDIO(L-CH)-SIG. IC6002 6pin AUDIO(R-CH)-SIG. YES Does a signal come out in the following, each output terminal of the integrated circuit? IC6203 4pin AUDIO(L-CH)-SIG. IC6202 4pin AUDIO(R-CH)-SIG. YES Set the disc on the disc tray.
DV-L70U 9.
DV-L70U 9-2. IC303 IX1517GE Pin No.
DV-L70U Pin No. 53 54 55 56 57 58 59 60 61 62 63 64 Terminal name P1CI P1BI P1AI GNDR LDP2 I/O I I I – I Operation function C input (DVD) B input (DVD) A input (DVD) GND terminal (RF) APC polarity 2 P2AI P2BI P2CI P2DI GNDS P2FP P2FN I I I I – I I A input (CD) B input (CD) C input (CD) D input (CD) GND terminal (Servo) FE+input (CD) FE–input (CD) Terminal DC Voltage(TYP.) Remarks VrA VrA VrA – – Positive polarity when this terminal is connected to Vcc.
DV-L70U 9-4. IC402 IX1474GE DEM/ECC (DVD) Pin No. 1 Terminal name DPCK1 I/O I Operation function Signal processing reference clock input. 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 DVDD3 SVCK1 SVCK0 DVSS DVDD2 N.C.
DV-L70U Pin No.
DV-L70U FLASH Input A0-A12 Input A13-A17 Input 25, 24~18, 8~4 3~15, 48, 17 29, 31, 33, 35, 38, 40, 42, 44 30, 32, 34, 36, 39, 41, 43, 45 DQ0-DQ7 Input/Output DQ8-DQ15 Input/Output 26 CE# Input 12 RP# Input 28 OE# Input 11 WE# Input 15 RY/BY# Output 47 BYTE# Input 13 37 27, 46 9, 10, 14, 16 Vpp Vcc GND NC • Block Diagram DQ8-15 DQ0-7 Output Buffer Output Buffer Input Buffer Input Buffer I/O Logic BYTE# OUTPUT MULTIPLEXER DATA ID Register QUEUE REGISTER CSR Register
DV-L70U PD7/D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 PD2/D10 PD1/D9 PD0/D8 PE7/D7 PE6/D6 PE5/D5 PE4/D4 PE3/D3 PE2/D2 PE1/D1 PE0/D0 SYSCON Vcc Vcc Vcc Vcc Vcc Vss Vss Vss Vss Vss Vss Vss Vss Clock oscillator Port G A/D converter P50 P51 P52 P53/ADTRG Port 4 Vref AVcc AVss P10/PO8/TIOCA0/DACK0 P11/PO9/TIOCB0/DACK1 P12/PO10/TIOCC0/TCLKA P13/PO11/TIOCD0/TCLKB P14/PO12/TIOCA1 P15/PO13/TIOCB1/TCLKC P16/PO14/TIOCA2 P17/PO15/TIOCB2/TCLKD P20/PO0/TIOCA3 P21/PO1/TIOCB3 P22/PO2/TIOCC3 P23/PO3/TIOCD3 P24/PO4/TIOCA4 P2
DV-L70U 9-8.
DV-L70U Pin1~15 ........ There is a possibility of simultaneous change. Pin18~47 ..... There is a possibility of simultaneous change.(Static signal) Pin50~57 ..... There is almost no possibility of simultaneous change. Pin63 ............ Not used Operating frequency: Approx. 10 MHz Operating frequency: Approx. 1 MHz Operating frequency: Approx.
DV-L70U 9-9. IC601 IX1608GE Pin No. Pin name Type I/O Function Host interface, CD-DSP interface, subcode interface (32-pin) Reset input (active low). When deassert is applied in the asserted state, the 141 RESET# I I initializing process of MD36710X is started. Stand-by input (active low). When it is asserted together with RESET#, all output pins and bidirectional pins are floated to separate MD36710X electrically from the 130 STNDBY# I I peripherals.
DV-L70U Pin No. Pin name GPI/O signal (4-pin) Type I/O 122,123 3-S I/O I O I O I I GPAI/O [1:0] 2 GPSI 159 GPSO PLL signal (6-pin) 129 GCLK 126 GCLK1 I I 128 XO O O 136 PLLCA I I 137,135 PLLCFG [1:0] Function General purpose bidirectional pin for monitor and control with ADP microcode. After resetting, this pin is defined as the input. If ADP command is used, setting is possible. General purpose input for monitor with DVP microcode.
DV-L70U Pin No.
DV-L70U 9-10. IC602 IX0750TA Terminal 35 18 34 Terminal Name Name CLK System Clock CS Chip Select Input Function Active on the positive going edge to sample all inputs. Disables or enables device operation by masking or enabling all inputs except CLK. CKE and L(U)DQM Masks system clock to freeze operation from the next clock cycle. CKE should be enabled at least one cycle prior to new command. Disable input buffers for power down in stanby. Row/column address are multiplexed on the same pins.
DV-L70U 9-11. IC701 AN8473NS-1 Pin No.
DV-L70U 9-12. IC702 BA5933FP Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 Terminal name STBY OUT+ OUTGND VCC MUTE GND REG_OUT REG_B BIAS IN1' IN1 Operation function Stand-by mode selector switch CH1 positive output terminal CH1 negative output terminal GND VCC Mute terminal Substrate GND Constant voltage output (collector of external Tr) Connected to the base of external Tr Bias input terminal CH1 gain adjustment input terminal CH1 gain fixed input terminal Pin No.
DV-L70U 9-13. IC707 IX1473GE SERVO PROCCESSOR Pin No.
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DV-L70U Pin No. 88 89 90 91 92 Terminal name BUS3 VDD VSS BUCK /CCE I/O I/O – – I I 93 TEST4 I 94 /TEMOD I 95 /RST I 96 TEST0 I 97 98 /HSO /UHSO O O 99 EMPH O 100 LRCK O Operation function Remarks Digital + power terminal. Digital ground terminal. Microcomputer interface clock input terminal. Microcomputer interface chip enable signal input terminal. BUS0 to 3 is active in “L” state. Test terminal. To be opened usually. Local test mode selection terminal.
DV-L70U 9-14. IC801 PCM1716E Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Terminal name LRCIN DIN BCKI CLKO XTI XTO DGND VDD VCC2R AGND2R EXTR NC VOUTR AGND1 VCC1 VOUTL NC EXTL AGND2L VCC2L ZERO RSTB CS/IWO MODE MUTE MD/DM0 MC/DM1 ML/IIS AUDIO D/A CONVERTER I/O I I I O I O – – – – O – O – – O – O – – O I I I I I I I Operation function LRCK clock input (fs) (3) Data input (3) Bit clock input for data. System clock buffered output.
DV-L70U 9-15. IC901 IX1516GE Terminal name Terminal 1 VDD GAMMA S-P-TONE In/Output – Input Input Input Input Input Input Function Digitan power +3.3V 2 3 4 5 6 7 HADR (0) HADR (1) HADR (2) HADR (3) HADR (4) HADR (5) CPU Address bus CPU Address bus CPU Address bus CPU Address bus CPU Address bus CPU Address bus 8 VSS – Digital GND 9 VDD – Digitan power +3.
DV-L70U Terminal name Terminal 56 VSS In/Output – Function Digital GND 57 VDD – Digital power +3.3V 58 59 60 61 PXDI (4) PXDI (5) PXDI (6) PXDI (7) Input Input Input Input 62 63 TEST0 TEST1 Input Input Test terminal Test terminal 64 VSS – Digital GND • Block Diagram CPU 12 15 2 7 18 21 10 11 HADAT 29 HADR 8 8 Edge creation SPT circuit Source Dec.
DV-L70U 9-17. IC1101 LZ9GJ18/-1 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Terminal name VIN CVOP MON_E HSY VDD FRPT SYNI FRPV GND VCS NTPC VSY HRVC VRVC CLKC MDS GND EXCL GND MDW MDN PWM MON_F VSWC VCSWI VSWO VDD SPOI GND PCP CLOC MOD2 HR IHR PS CTR Operation function Pin No.
DV-L70U 9-19. IC1801 IR3Y29BM Pin No.
DV-L70U Pin No. 47 Terminal name AGC OUT 48 PICTURE Operation function It is the terminal which the voltage detected in the automatic gain control detector circuit of the luminance signal is outputted in. Output voltage rises the output voltage. The frequency characteristic of the luminance signal can do adjustment. When a voltage is lowered, emphasis is put on the contour.
DV-L70U 9-21. IC2102 TK15400 Vcc • Block Diagram + Vcc=5.0V 33µF 1 Y-OUTPUT Vout 2.0Vp-p + 75Ω 8dB 75Ω DRIVER Y-INPUT 4.7µF 2 + 12 33µF 75Ω 1.5kΩ Clamp 1.25V 11 5kΩ 75Ω + 33µF 5kΩ CVBS-OUTPUT Vout 2.0Vp-p Standby Reference & Standby Logic 8dB 75Ω DRIVER 5 + 10 33µF 75Ω 1.5kΩ Clamp 1.25V BIAS 2.0V C-Input 4.7µF 5kΩ 33µF C-OUTPUT Vout 1.3Vp-p 100kΩ 8dB 75Ω DRIVER + 9 5kΩ 75Ω + 6 75Ω 3 4 + 8 33µF 75Ω 75Ω 7 GND 9-22. IC3200 IX1625GE Pin No.
DV-L70U Pin No.
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DV-L70U Pin No. 52 53 54 55 I/O O O O O 56 Terminal name LED1 AV S LED2 AV P Operation function LED control (green) DVD/TV control LED control (red) DVD/TV control DEF Defeat output 57 O EPCS EPROM chip select 58 O DACS DAC chip select 59 O FLOF DVD video mute 60 61 62 63 65 O I O IN H PSW SMUTE External input control Not used. Audio mute output O PMUTE Video mute output 79 O FMCS Not used. Remarks LED control “H” is output during TV tuner reception.
DV-L70U 9-23. IC3201 MB8346BV Pin No. 17 14 16 I/O I O I Terminal name Data input terminal Data output terminal Shift clock input terminal 15 I 18, 19, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13 11 20 10 1 O Remarks The 12-bit serial data is input. The bit data of MSB of 12-bit shift register is output. The input signal form the DI terminal is input into 12-bit shift register when the shift clock reises.
DV-L70U 9-24.
DV-L70U 9-26. IC3601 TK11835 BASE 1 Is 2 + - - 6 VCC 5 GND + Thermal S.D VFB 3 4 VREF VREF 1.Power amplification Tr base drive 2.Electric current limitation 3.Output voltage feedback 4.Reference voltage 5.GND 6.Input 9-27. IC6002 TDA7053 GND2 10 9(+) 12(-) + IN2 SGND2 6 7 + 9-31 15 n.c. 11 n.c. 8 n.c. 4 n.c. 3 n.c.
DV-L70U 9-28. IC9001 TL1451AC (9) (16) Vref=2.5V Error Amp1 (3) (4) (5) + VCC Reference Voltage 2.0V +2.5V (2) Trlangle Oscillator PWM Comprator1 1.4V (7) - Error Amp2 (12) (14) (13) (1) + Output1 Short Circuit Protection Comparator + + Vref/2 (10) Vref Vref R R Vref Output2 (15) PWM Comprator2 S Latch GND U.V.L.O.
DV-L70U 10.
DV-L70U 11.
DV-L70U DV-L70U 12. BLOCK DIAGRAMS 12-1.
DV-L70U DV-L70U 12-2.
DV-L70U DV-L70U 12-3.
DV-L70U DV-L70U 12-4.
DV-L70U DV-L70U 13. SCHEMATIC DIAGRAMS 13-1.
DV-L70U DV-L70U 13-2.
DV-L70U DV-L70U 13-3.
DV-L70U DV-L70U 13-4.
DV-L70U 14. PRINTED WIRING BOARD ASSEMBLIES 14-1.
DV-L70U Wiring Side J I H G F E D C B A 1 2 3 4 5 6 14-2 7 8 9 10
DV-L70U DV-L70U 14-2.
DV-L70U -MEMO- 14-5
DV-L70U Part No. ★ Description 15. REPLACEMENT PARTS LIST/ Code EXPLODED VIEWS Ref. No. Ref. No. ELECTRICAL PARTS LIST " HOW TO ORDER REPLACEMENT PARTS" ★MARK : SPARE PARTS-DELIVERY SECTION : ALL JAPAN To have your order filled promptly and correctly, please furnish the following informations. 2. REF. NO. 4. DESCRIPTION å MARK: SAFETY RELATED PARTS PWB ASSEMBLY IS NOT REPLACEMENT ITEM Ref. No. Part No.
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DV-L70U MECHANISM EXPLODED VIEW Ref. No. ★ Part No. Description Code Ref. No. ★ Part No. Description Code H 1 8 G 7 F When replacement or a djustment of the parts in this frame is necessary, replace or adjust the mechanism ass'y (adjustment of the parts is completed). E 7 7 *2 5 15 11 *2 6 16 D *1 3 13 4 9 C 17 2 12 [Notes] *1. When soldering the sled lead wire y, it must be made in a soldering iron tip temperature of 290±20˚C and within 3 10 seconds. *2.
DV-L70U CABINET EXPLODED VIEW Ref. No. ★ Part No. Description Code Ref. No. Part No.
DV-L70U 16. OF THE SET Ref. PACKING No. Part No. ★ Description ★SSAKA0100TAZZ (Polystylene Bag, Accessories) Code Ref. No. Part No. ★ Description Code UBATU0241GEZZ (Battery) ★SPAKF0195GEZZ (Packing Meterial) TiNS-3698GEZZ (Operation Manual) ★TGAN-3207GEZZ (Guarantee Card) å UADP-0194GEZZ (AC Adapter) ★SPAKX1079GEZZ (Packing Add.
DV-L70U DV-L70U Ref. No. Part No. ★ Description Code Ref. No. ★ Part No. Description Code COPYRIGHT C 1999 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. SHARP CORPORATION AV Systems Group Quality & Reliability Control Center Yaita, Tochigi 329-2193, Japan TQ0766-S Dec.
