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SERVI C E MANUAL MODEL SDP6820 CAUTION : Before servicing this chassis, read the "PRODUCT SAFETY SERVICE FOR VIDEO PRODUCTS" section on page 2 of this manual. CONTENTS DVD and CD SERVICE PRECAUTIONS............2,3 BLOCK DIAGRAMS..............4 TROUBLE SHOOTING............5,8 PLAYER BOARD DIAGRAM...............9,10...
LASER BEAM CAUTION LABEL When the power supply is being turned on, you may not remove this laser cautions label. If it removes, radiation of laser may be received. PREPARATION OF SERVICING Pickup Head consists of a laser diode that is very susceptible to external static electrocity. Although it operates properly after replacement, if it was subject to electrostatic discharge during replacement, its life might be shortened.
SAFTY NOTICE SAFTY PRECAUTIONS LEAKAGE CURRENT CHECK Plug the AC line cord directly into a 120V AC outlet (do Measure the AC voltage across the 1500 resistor. not use an isolation transformer for this check). Use an The test must be conducted with the AC switch on and AC voltmeter, having 5000 per volt or more sensitivity.
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OVERALL BLOCK DIAGRAM OSCILLATOR DC 9V 16M FlashROM 64M SDRAM OZ9RR 27MHz TC4W53 74HCU04 MX29LV160ABTC-70 NT56V6620C0T-75S 27MHz HIGH VOLTAGE ASS'Y UPD5200 TFT MONITOR RF AMP & SERVO & DVD PROCESSOR DV23(HD80) MPEG-2 DECODER & VIDEO ENCODER PU mechanism MT1389SE VIDEO IN +3.3V ADG713 UB6220...
1. Troubleshooting 1. No power when turned on. 2. The initial screen is not displayed on the LCD. 3. The DVD drive does not work. 4. The operation of the DVD player stops at initializing display. 5. Image output stops during the operation. 6.
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1.2 The initial screen is not displayed on the LCD. If the initial screen is not displayed on the LCD, check the following items. (1) Check the LED on the front If the LED does not light, proceed to 1.1. (2) Check the backlight If the backlight does not light up, separate.
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1.3 The DVD drive does not work. When the DVD drive does not work after the power is turned on, check the following items and repair or replace the defective parts. (1) Press the DISC cover switch at the center of the DVD player and turn on the power.
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1.5 Image output stops during the operation. If the image output form the media in the DVD player stops during the operation, replace the DVD drive. 1.6 No sound or abnormal sound comes out from the speakers in the DVD player. If no sound comes out form the speakers in the DVD player, check the following: (1) Check for moving images on the LCD screen Check whether or not the move of image stops in halfway.
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DVD6820H HV POWER BOARD DIAGRAM DVD6820T(H3) IF BOARD DIAGRAM...
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