Sony rdr gx 210 service manual
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- 2 - SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer: W ARNING!! WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION, BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 25 cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges. 2. Check the interboard wiring to ensure that no wires are pinched or contact high-wattage resistors. 3. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement. This appliance is classified as a CLASS 1 LASER product. The CL ASS 1 LASER PRODUCT MARKING is located on the rear exterior. Unleaded solder Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics. - Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! - Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. - Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. 4. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement. 5. Check the B+ voltage to see it is at the values specified. CAUTION: The use of optical instrument with this product will increase eye hazard.
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- 3 - TABLE OF CONTENTS Service Note 1 Connection of Jig (Extension Cable) ··················\ ················ 4 2 Disc Removal Procedure (at Power off) ··················\ ··········· 5 1. General Hookups and Settings ··················\ ··················\ ··················\ 1-3 Basic Operation ··················\ ··················\ ··················\ ········· 1-6 Recording ··················\ ··················\ ··················\ ··················\ 1-9 Playback ··················\ ··················\ ··················\ ··················\ 1-11 Erasing and Editing ··················\ ··················\ ··················\ · 1-14 DV Dubbing ··················\ ··················\ ··················\ ············ 1-16 Settings and Adjustments ··················\ ··················\ ·········· 1-17 Additional Information ··················\ ··················\ ·············· 1-19 2. Disassembly 2-1 Top Case ··················\ ··················\ ··················\ ··················\ · 2-1 2-2 Front Panel Section-1 ··················\ ··················\ ················· 2-1 2-3 Front Panel Section-2 ··················\ ··················\ ················· 2-2 2-4 Video Deck Assy ··················\ ··················\ ··················\ ····· 2-2 3. Block Diagrams 1) Video Block Diagram ··················\ ··················\ ················· 3-1 2) Audio Block Diagram ··················\ ··················\ ················ 3-3 3) Video Input/Record Path ··················\ ··················\ ············ 3-5 4) Video Output Path ··················\ ··················\ ··················\ ···· 3-7 5) Audio Input Path (Tuner, AV & DV1394) ··················\ ···· 3-9 6) FLD/u-Com/Tuner ··················\ ··················\ ··················\ · 3-11 7) Power: Main Board ··················\ ··················\ ··················\ 3-13 4. Schematic Diagrams 4-1 Frame (1/2) ··················\ ··················\ ··················\ ················ 4-1 4-2 Frame (2/2) ··················\ ··················\ ··················\ ················ 4-3 4-3 Power ··················\ ··················\ ··················\ ··················\ ······· 4-5 4-4 Mpeg Encoder ··················\ ··················\ ··················\ ··········· 4-7 4-5 Mpeg Decoder ··················\ ··················\ ··················\ ··········· 4-9 4-6 Video Decoder & DV1394 Phy ··················\ ··················\ · 4-11 4-7 I/O ··················\ ··················\ ··················\ ··················\ ·········· 4-13 4-8 Key ··················\ ··················\ ··················\ ··················\ ········ 4-15 4-9 Jack ··················\ ··················\ ··················\ ··················\ ········ 4-17 4-10 Timer ··················\ ··················\ ··················\ ··················\ ····· 4-19 4-11 Waveforms ··················\ ··················\ ··················\ ··············· 4-21 4-12 Circuit Voltage Chart ··················\ ··················\ ················· 4-23 5. Printed Wiring Boards 5-1 Main Board ··················\ ··················\ ··················\ ················ 5-1 5-2 I/O Board ··················\ ··················\ ··················\ ··················\ · 5-3 5-3 Key/Timer Board ··················\ ··················\ ··················\ ······· 5-7 5-4 Jack Board ··················\ ··················\ ··················\ ················· 5-9 6. Troubleshooting ··················\ ··················\ ············· 6-1 7. Repair Parts List 7-1 Exploded Views ··················\ ··················\ ··················\ ········· 7-1 7-1-1 Cabinet and Main Frame Section ··················\ ··················\ 7-1 7-1-2 Packing Accessory Section ··················\ ··················\ ·········· 7-2 7-2 Electrical Parts List ··················\ ··················\ ··················\ ··· 7-3