FILE NO. 810-200531 SERVICE MANUAL DIGITAL VIDEO DVD VIDEO RECORDER D-R4SU D-R4SC D-KR4SU Mar., 2005...
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 a laser may be received. PREPARATION OF SERVICING Pickup Head consists of a laser diode that is very susceptible to external static electricity. Although it operates properly after replacement, if it was subject to electrostatic discharge during replacement, its life might be shortened.
SAFETY NOTICE SAFETY PRECAUTIONS LEAKAGE CURRENT CHECK Measure the AC voltage across the 1500 W resistor. Plug the AC line cord directly into a 120V AC outlet (do 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 W per volt or more sensitivity.
CONTENTS SECTION 1 GENERAL DESCRIPTIONS 2. LOCATION OF MAIN PARTS 1. OPERATING INSTRUCTIONS 2-1. Location of Main Parts 2-2. Location of PC Boards SECTION 2 PART REPLACEMENT AND ADJUSTMENT PROCEDURES 1-2. PC Board Replacement 1. REPLACEMENT OF MECHANICAL PARTS 1-2-1. Tuner Unit PC Board 1-1.
SECTION 1 GENERAL DESCRIPTIONS 1. OPERATING INSTRUCTIONS Please refer to the owner's manual about the contents.
2. LOCATION OF MAIN PARTS 2-1. Location of Main Parts RAM1 RAM DRIVE ZG45 FAN Fig. 1-2-1 2-2. Location of PC Boards EU01 Digital PC board EU05A Tuner Unit PC board EU05 Mother PC board EU03B Front (L) PC board EU56 Front (LED) PC board EU55 Front Jack PC board...
SECTION 2 PART REPLACEMENT AND ADJUSTMENT PROCEDURES CAUTIONS BEFORE STARTING PART REPLACEMENT Electronic parts are susceptible to static electricity and may easily damaged, so do not forget to ground as required. Many screws are used inside the unit. To prevent the screws from missing or dropping, etc. always use a magnetized screwdriver in servicing.
1-1-2. Front Panel 1. Remove the top cover. (Refer to item 1-1-1.) 2. Disconnect three connectors (1). 3. Remove one screw (2) and the earth lead. 4. Remove two screws (3) and four claws, then remove the front panel (4). Connector (1) Connector (1) Screws (2)
1-1-4. Rear Panel 1. Remove the top cover. (Refer to item 1-1-1.) 2. Remove the screw (1) and seven screws (2). 3. Remove the bush from the rear panel (3). 4. Remove two claws, then remove the rear panel (3). 5.
1-2. PC Board Replacement Tuner Unit PC board (4) Screw (3) 1-2-1. Tuner Unit PC Board 1. Remove the top cover. (Refer to item 1-1-1.) 2. Disconnect the flexible cable (1). 3. Remove the screw (2) and the screw (3). Screw (2) 4.
1-2-3. Mother PC Board 1. Remove the rear panel. (Refer to item 1-1-4.) 2. Remove the Tuner Unit PC board. (Refer to item 1-2-1.) 3. Remove the Digital PC board. (Refer to item 1-2-2.) 4. Disconnect three connectors (1). 5. Remove five screws (2) and the screw (3). 6.
1-2-4. Power PC Board 1. Remove the top cover. (Refer to item 1-1-1.) 2. Peel off the tape (1). 3. Disconnect four connectors (2). 4. Remove four screws (3), then remove the Power PC board (4). Power PC board (4) Connectors (2) Tape (1) Connectors (2)
1-2-5. Front (R), Front (L), Front (LED) and Front Jack PC Boards 1. Remove the front panel. (Refer to item 1-1-2.) 2. Peel off two tapes (1). 3. Remove four screws (2), then remove the stay (3). 4. Remove four screws (4) and two screws (5), then remove the Front (R) PC board (6) and Front (LED) PC board (7). 5.
2. WIRING CONNECTION DIAGRAM After the servicing is complete, return the wiring to its original state by using the diagram below as a reference. Mother PC board Tuner Unit PC board Power PC board WB01 W701 W051 W102 W101 Digital PC board Front panel W104 RAM Drive...
SECTION 4 PARTS LIST SAFETY PRECAUTION The parts identified by ! ( ) mark are critical for safety. Replace only with part number specified. The mounting position of replacement is to be identical with originals. The substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire or other hazards.
SPECIFICATIONS Power requirement during operation Power requirement at standby 2.7W Power supply 120V AC, 60 Hz Mass 3.5kg External dimension Width 430 x Height 58 x Depth 304mm Incoming channels TV : 2-69CH, Cable : 1-125CH Antenna input/output terminal VHF/UHF : 75W, F Connector Signal system Standard NTSC Color TV system Laser...
1 1, SHIBAURA 1 CHOME, MINATO KU, TOKYO 105 8001, JAPAN...