Read Sony TAV-L1 (serv.man4) Service Manual online
13
13
2-1. Stand by mode
MAIN SYSTEM CONTROLLER
(IC602)
(3) Data back up in MAIN SYSTEM CONTROLLER
“E4V”
D602
C612
1000
6.3V
1000
6.3V
+
Please refer to Schematic diagram on page 68 in the Service manual.
Volume and FM preset setting data is recorded in MAIN SYSTEM
CONTROLLER (IC602).
CONTROLLER (IC602).
To hold the backup data in MAIN SYSTEM CONTROLLER, C612 supplies the
backup voltage when AC plug is disconnected.
backup voltage when AC plug is disconnected.
This backup capacitor can supply the backup voltage for a half day only.
If AC power code is disconnected , the FM preset setting will be erased for more
than a half day.
than a half day.
This Note is written at “Presetting FM radio stations” in Operating Instructions.
If AC power code will be disconnected for repair operation, please mind this
Note.
Note.
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