Read Sony CMT-SP55TC / TC-SP55 Service Manual online
13
Record Level Adjustment
Procedure:
1. Record mode.
1. Record mode.
2. Playback mode.
3. Confirm playback the signal recorded in step 1 become adjust-
ment level as follows.
4. If these levels do not adjustment level, adjust the RV401 (L-CH)
and RV451 (R-CH), on the MAIN board to repeat steps 1 to 3.
Adjustment level:
LINE OUT level: –21.8 dB ± 0.5 dB (59.5 to 66.7 mV)
Adjustment level:
LINE OUT level: –21.8 dB ± 0.5 dB (59.5 to 66.7 mV)
Adjustment Location: MAIN board
AF OSC
AUX IN (on ST-SP55)
315Hz 50 mV (–23.8 dB)
315Hz 50 mV (–23.8 dB)
blank tape
CS-123
CS-123
set
attenuator
600
Ω
recorded
position
set
AUX OUT
(on ST-SP55)
(on ST-SP55)
level meter
RV311 (L-CH),
RV361 (R-CH)
RECORD BIAS
RV361 (R-CH)
RECORD BIAS
RV211 (L-CH),
RV261 (R-CH)
PB LEVEL
RV261 (R-CH)
PB LEVEL
RV401 (L-CH),
RV451 (R-CH)
REC LEVEL
RV451 (R-CH)
REC LEVEL
TAPE SPEED
RV362
RV311
RV361
RV211
RV261
RV451 RV401
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