Sony TC-S3, Руководство по обслуживанию

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12
TC-S3
Adjustable level:
MD OUT jack PB level: 47.2 to 53.0 mV (–27.3 to –26.3 dB)
Adjustment Location: MAIN board
[MAIN BOARD] (Component Side)
[LEAF SW BOARD] (Component Side)
REC Bias Adjustment
DECK B
Procedure:
1. Insert a tape into Deck B.
2. After press
[REC PAUSE/START]
button,
press
[REC PAUSE/START]
button, then recording start.
3. Mode: Record
4. Mode: Playback
5. Confirm the playback signal recorded in step 3 becomes ad-
justable level as follows.
If these levels are not adjustable level, adjust the RV304 (L-
CH) and RV354 (R-CH) on the MAIN board to repeat steps 4
and 5.
Adjustable level: Playback output of 315 Hz to playback output
of 10 kHz:
±
1.0 dB
Adjustment Location: MAIN board
REC Level Adjustment
DECK B
Procedure:
1. Insert a tape into Deck B.
2. After press
[REC PAUSE/START]
button, press
[REC PAUSE/START]
button, then recording start.
3. Mode: Record
4. Mode: Playback
5. Confirm the play back signal recorded in step 3 becomes ad-
justable level as follows.
If these levels are not adjustable level, adjust the RV301 (L-
CH) and RV351 (R-CH) on the MAIN board to repeat steps 4
and 5.
attenuator
set
MD/VIDEO (AUDIO) IN (J601): ST-S3/S5/SV7
1) 315 Hz
2) 10 kHz
50 mV (–23.8 dB)



600
Ω
blank tape
CN-123
AF OSC
ST-
S3/S5/SV7
+
–
set
recorded
portion
level meter
MD OUT jack
(J601)
ST-
S3/S5/SV7
MD/VIDEO (AUDIO) IN (J601) : ST-S3/S5/SV7
315 Hz, 50 mV (–23.8 dB)
blank tape
CS-123
attenuator
set
600
Ω
AF OSC
ST-
S3/S5/SV7
+
–
set
recorded
portion
level meter
MD OUT jack
(J601)
ST-
S3/S5/SV7
TAPE SPEED
RV1002
RV1001
(NORMAL) (HIGH)
CN1001
         
DECK A
PB LEVEL
(L-CH)
REC LEVEL
(R-CH)
DECK B
PB LEVEL
(L-CH)
REC LEVEL
(L-CH)
REC BIAS
(R-CH)
REC BIAS
(L-CH)
RV302
RV303
RV354
RV304
RV301
RV351
CN311
IC303
IC302