When servicing this product, under no circumstances should the original design be modified or altered without permission from Zenith Electronics Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.
SERVICING PRECAUTIONS CAUTION : Before servicing the DVD covered by this service Electrostatically Sensitive (ES) Devices data and its supplements and addends, read and follow the Some semiconductor (solid state) devices can be damaged SAFETY PRECAUTIONS. NOTE : if unforeseen circum- easily by static electricity.
SPECIFICATIONS • GENERAL Power requirements: AC 120 V , 60 Hz Power consumption: Dimensions (Approx.): 430 x 39 x 242 mm (W x H x D) without foot Weight (Approx.): 2.2 kg Operating temperature: 5 °C to 35 °C (41 °F to 95 °F) Operating humidity: 5 % to 90 % •...
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SECTION 2 CABINET & MAIN CHASSIS CONTENTS 1. EXPLODED VIEWS ........................2-2 1. Cabinet and Main Frame Section ...................2-2 2. Packing Accessory Section ....................2-3...
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EXPLODED VIEWS 1. Cabinet and Main Frame Section SCART, 5.1CH MODEL ONLY KARAOKE MODEL ONLY...
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SECTION 3 ELECTRICAL CONTENTS ELECTRICAL TROUBLESHOOTING GUIDE ..............3-2 1. Power check flow........................3-2 2. System operation flow ......................3-3 3. Test & debug flow ........................3-4 4. KARAOKE Flow (KARAOKE MODEL ONLY) ...............3-10 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING ....3-11 1. SYSTEM 27MHz CLOCK, RESET SIGNAL ................3-11 2.
ELECTRICAL TROUBLESHOOTING GUIDE 1. Power check flow No VF+ No 5V_A Is 5.2VA section working? Is 5.2VA section working? Is 5.2V present at emitter Check F102 No 5.2VA of Q107? Replace D102. Check F101 Replace Q107. Is there a DC voltage at Replace R101.
2. System operation flow Power on 1.initializes SERVO, DSP and RISC registers 2.write RISC code to SDRAM 3.Reset RISC Show LOGO SLED at Inner Side? SLED Moves to Inner Position Tray Closed? Tray Close to closed position 1.Judge whether have disc and disc type 2.Jump to related disc reading procedure Received Open/close key?
3. Test & debug flow Test Check the AC Voltage Check the Power PART (110V or 220V) Switch on the Power PCBA the DC Voltage Check the Power PART Outputs OK? (5.2V,5V,1.8V ,3.3V,8V,12V) 3.3V, 1.8V,5V,12V and 8V Check the IC105 or diode outputs normal on main Connect to PC RS232 Cable and Update the flash memory code...
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Reset or Power on Flash Check connection on lines between FLASH Show LOGO Memory operates & M3355 and the FLASH access time Properly? whether is suitable or not. Check connection lines between SDRAM SDRAM(IC503) & M3355 and the works properly? SDRAM is damaged.
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Does the SLED move Motor Check the connection line of to inner side when it is at Driver DRVSB DRVSB signal outer position Pin is High? Motor Check the related circuit of Driver DRVSB FOCUS. Pin is High? SLED+ Check the amp circuit on and SLED- output motor driver.
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Check the laser power circuit Laser turns on when LD01 or LD02 output on M3355 and connecting to reading disc?) properly? power transistor. (Q201, Q202) Collector Check the related circuit on voltage of power laser power TR transistor is OK? ( Q201, Q202) Check cable connection between transistor output and pick-up head.
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Proper Check connections between Focus ON OK? signals on A, B, C, M3355 and pick-up head. D of M3355 Check the related circuit . Proper FE signal on M3355 FE signal on M3355? .Proper SBAD signal Check the related circuit on M3355? on M3355 SBAD signal .
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Normal Check connection between M3355 Audio output DAC received & Audio DAC. (Check DAC_RST#, when disc playback? correct data SER3, BCLK, LRCK,MCLK stream? Normal Check the related circuit of Audio DAC Audio DAC. (Check Audio out? (IC601) out Pin 14, 15,18,19) Check Audio filter, amplify, mute circuit.
4. KARAOKE Flow(KARAOKE MODEL ONLY) Start Insert the MIC jack Is the MIC signal at the IC801 pin3. Is the MIC signal at the IC801 pin2. Does the MIC Replace IC801 Check pattern signal input to the IC501 pin213. Is the MIC signal at the IC801 pin3 normal? Replace IC501 Replace the mic jack...
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1. SYSTEM 27MHz CLOCK, RESET SIGNAL 1) M3355 main clock is at 27MHz(X501) 3.1V,27MHz FIG 1-1 2) M3355 reset is low active 5.2VA PWR_CTL(CN505 PIN7) M_RESET(CN505 PIN9) TRST FIG 1-2 3-11...
6. KARAOKE Block Diagram(KARAOKE MODEL ONLY) Microphone1 Microphone AUDIO Signal AUDIO MPEG PREAMP CS4391 (BA3308) Microphone2 Ali M3355 (Block Digram) 1. The unit turns to KARAOKE MODE with on-screen lyrics display and melody sound when it playbacks VCD or DVD KARAOKE DISC. 2.
2. Voltages are DC-measured with a digital voltmeter MODIFIED OR ALTERED WITHOUT PERMISSION IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode. FROM THE ZENITH ELECTRONICS CORPORATION. PERFORMANCE IMPROVEMENT CHANGES INTO ALL COMPONENTS SHOULD BE REPLACED ONLY THE SET IS NOT DELAYED UNTIL THE NEW SERVICE WITH TYPES IDENTICAL TO THOSE IN THE ORIGI- LITERATURE IS PRINTED.
2. AV/JACK CIRCUIT DIAGRAM All Video signal isn't appear or bad 2CH Audio out bad. 2CH Audio out bad. SR14812A DV8000's ALI Model '04. 1.6 3-33 3-34...
3. SYSTEM CIRCUIT DIAGRAM Video signal not appeared System not working or Digitron not display System not operate Program download fail OPTIONAL PART SR14811A DV8000's ALI Model Digitron all not display System not working or System not working '04. 1.6 screen is abnormal 3-35 3-36...
5. TIMER CIRCUIT DIAGRAM Digital abnormal Remocon not operate Remocon not operate System not operate or Digitron abnormal or Key not operate. Digital abnormal SR14814A DV8000's ALI Model '04. 1.6 3-39 3-40...
• CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE STOP PLAY HOLD STOP PLAY HOLD STOP PLAY HOLD STOP PLAY HOLD STOP PLAY HOLD STOP PLAY HOLD PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. IC201 (IP4504) I C 5 0 1 ( M 3 3 5 5 ) 3.17...
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MODE MODE MODE MODE MODE MODE MODE MODE MODE STOP PLAY HOLD STOP PLAY HOLD STOP PLAY HOLD STOP PLAY HOLD STOP PLAY HOLD STOP PLAY STOP PLAY STOP PLAY STOP PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO.
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MODE MODE STOP PLAY STOP PLAY PIN NO. PIN NO. C 6 3 5 C 1 2 4 ( O P E N ) C635 C124(OPEN) 2.17 2.32 9.71 9.52 2.07 2.08 C 1 2 2 C 1 1 8 C122 C118 8.07...
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DECK MECHANISM PARTS LOCATION • Top View (With Tray) Procedure Disass Fig- Parts Fixing Type embly Starting No. Main Base Clamp Assembly Disc 1, 2 Plate Clamp 1, 2, 3 Magnet Clamp 1, 2, 3, 4 Clamp Upper Tray Disc 1, 6 Base Assembly Sled 1, 2, 6...
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DECK MECHANISM DISASSEMBLY Fig. 4-1 Fig. 4-2 1. Main Base (Fig. 4-1) 2. Tray Disc (Fig. 4-2) 1-1. Clamp Assembly Disc 1) Insert and push a Driver in the emergency eject hole(A) at the right side, or put the Driver on the 1) Place the Clamp Assembly Disc as Fig.
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DECK MECHANISM DISASSEMBLY Fig. 4-4 5. Frame Assembly Up/Down (Fig. 4-4) 8. Gear Loading (Fig. 4-4) 9. Guide Up/Down (Fig. 4-4) Note 1) Move the Guide Up/Down in direction of arrow(A) as Put the Base Main face down(Bottom Side) Fig.(A) 1) Release the screw(S4) 2) Push the Locking Tab(L5) down and then lift up the 2) Unlock the Locking Tab(L3) in direction of arrow and...
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NOTES) With respect to risk of fire or "IC502A" NOTES) electricial shock. SECTION 5 REPLACEMENT PARTS LIST MODEL : DVB413(LGEUS) NSP : Not avallable as service parts. RUN DATE : 19-APRIL-04 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS...
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S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS 015B 4560R-0008A PULLEY MOTOR 6871R-9288A PWB(PCB) ASSEMBLY,TOTAL DP-8 LOADING -SH 4470R-0153A GEAR DECK/MECHA DP8 LOADING MOLD 4974R-0055A GUIDE DECK/MECHA DP8 UP/DOWN MOLD 3210R-M006A FRAME UP/DOWN DP8 MOLD 3040R-M061A BASE MAIN DP8 MOLD 4680R-E007A MOTOR(MECH) FEEDING BCZ3B01 SANKYO FOR DVD...
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S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS C123 0CE108BF630 CAPACITOR,FIXED ELECTROLYTIC 1000UF KME 16V M FM5 BULK C126 0CQ1031Y519 CAPACITOR,FIXED FILM 0.01UF D 630V 10% PE NI TP5 C128 0CQ1042K409 CAPACITOR,FIXED FILM 0.1UF S 50V 5% PE TP5 C129 0CE1074F638 CAPACITOR,ELECTROLYTIC...
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S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS R102 0RF0200F708 RESISTOR,VARIABLE[CARBON FILM] 0.2 OHM 1/6 W 10% TA26 R103 0RS5602K619 RESISTOR,FIXED METAL OXIDE FIL 56K OHM 2 W 5.00% TR R112 0RD0682F608 RESISTOR,FIXED CARBON FILM 68 OHM 1/6 W 5.00% TA26 R114 0RD1003F608 RESISTOR,FIXED CARBON FILM...