Sony xvm r 90 d service manual

Page 2

XVM-R90D

TABLE OF CONTENTS

CAUTION
The use of optical instruments with this
product will increase eye hazard. 1' SERVICING NOTES ' 3
2. GENERAL
CAUTION Location of Controls ........................................................ 5
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation 3- DISASSEMBLY
- 3-]. Disassembly Flow ........................................................... 7
exposure.
32. Bracket (Main) .................... 7
. 3-3. DVD Mechanism Deck Block. 8
Notes on chip component replacement 3.4 M AIN Board 8
0 Never reuse a disconnected chip component. 3-5. Rear Cover (Hinre) 9
0 Notice that the minus side of a tantalum capacitor may be 376 LCD Block E 9
damaged by 5" 3-7: LCD Board 10
Flexible Circuit Board Repairing 3378. Liquid Crystal D play Panel (LCDI) 10
I Keep the temperature of the soldering iron around 270 C
during repairing. 4. TEST MODE .............................................................. ll
0 Do not touch the soldering iron on the same conductor of the 5 ELECTRICAL ADJUSTMENTS l2

circuit board (within 3 times).
I Be careful not to apply force on the conductor when soldering

or unsoldering. 6- DIAG RAMS
671. Block Diagram 7 MPEG DECODER Section 7
6-2. Block Diagram 7AUDIO Section 7

CLASS .1 673 Block Diagram 7VIDEO, PANEL Section 7
6-4. Block Diagram 7 POWER SUPPLY Section
LASER PRODUCT 675. Printed Wiring Board
7 MAIN Board (Component Side) 7 ............................... 22
This label is located on the bottom of the 66- Printed Wiring Board
chassis. 7 MAIN Board (Conductor Side) 7 ..........
677. Schematic Diagram 7 MAIN Board (1/4) 7
CAUTION-INVISIBLE LASER RADIATION WHEN OPEN 6-3- Schematic Diagram , MAIN Board (2/4) ,
DO NOT STARE INTO BEAM OR 6) Schematic Diagram 7 MAIN Board (3/4) 7

VIEW DIRECTLY WITH OPTICAL INSTRUMENTS

6-10. Schematic Diagram 7 MAIN Board (4/4) 7 ..
6711. Printed Wiring Board 7 LCD Board (Side A) 7
This label is located on the drive units internal 6-12. Printed Wiring Board 7 LCD Board (Side B) 7
chassiS- 6713. Schematic Diagram 7 LCD Board (1/4) 7
6-14. Schematic Diagram 7 LCD Board (2/4) 7
6715. Schematic Diagram 7 LCD Board (3/4) 7
6-16. Schematic Diagram 7 LCD Board (4/4) 7
6717. Printed Wiring Board 7 PANEL Section (1/2) 7 ..
6-18. Printed Wiring Boards 7 PANEL Section (2/2)
6719. Schematic Diagram 7 PANEL Section 7.

7. EXPLODED VIEWS

771. Skirt (Cabinet) Sectior 52
772. Front (Panel) Section. 53
773 MAIN Board Section. 54
74. Cabinet (Base) Section 55
775. LCD Section .................................................................... 56
8. ELECTRICAL PARTS LIST ................................ 57