Sony xr 5 w 497 rb service manual
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Page 1
XR-5W497RB
SERVICE M ANUAL AEP Model
.,'..--.--.-.,.,.., .
.
Dolby noise reduction manufactured under license from Dolby Labo-
ratories Licensing Corporation.
DOLBY and the double-D symbol in are trademarks of Dolby
Laboratories Licensing Corporation.
Notes on Chip Component Replacement
O Never reuse a disconnected chip component
0 Notice that the minus side of a tantalum capacitor may be
damaged by heat.
FM/AM CASSEI'TE CAR STEREO
Page 2
SERVICE NOTE
Each time the power is turned on, the security must be released
before the set can be operated.
Method of Releasing the Security of the XR-5W497RB
1. Turn on the power from the power cord.
2. Wait until the LCD display changes from SAFE to 1000.
3. Input 1234" with the preset buttons on the set.
Input method:
Push the preset butto once, button
times, and button four times.
4. Press and hold down the or El button for two seconds.
wice, button three
Note : If an attempt to release the security by this method fails
twice, the system is locked.
In this case, allow the set to be activated for about one hour,
then turn off the power and perform the following steps again.
TABLE OF CONTENTS
1. DISASSEMBLY
17]. Cover (Upper) ..
1A2. FrontPanelAs
1-3. Mechanism Deck Block .
174. Cover(Lower) ............
175. HeatSink...
16. Main Board
2. DIAG RAMS
2]. [C Pin Descriptions ...........
2-2. Block Diagram 7 Tape Section
273. Block Diagram 7 Tuner Section 7
274. Block Diagram 7 DSP Section 7.
26. Printed Wiring Board 7 Main Section 7
2-6 Schematic Diagram 7 Main Section 7...
277. Printed Wiring Boards 7 TIM/DSP Section
278. Schematic Diagram 7 TIM Section 7.
2A9. Schematic Diagram 7 D5? Section 7.
2-10. Printed Wiring Board 7 Connector Section 7
271 1. Schematic Diagram 7 Connector Section
2712. Printed Wiring Board 7 Panel Section 7...
21 3. Schematic Diagram 7 Panel Section 7 ............................. 43
3. EXPLODED VIEWS
3-]. Main Section ............................................................. 51
372. Front Panel Section .......................................................... 52
4. ELECTRICAL PARTS LIST .................................... 53