Sony TC-W345 - Page 5

Adjustment location:
DECK-A side RV501
DECK-B side RV503
2. Remmove the wire in step 1. (CNP505)
Measurement limit: normal speed |
Speed checker Digital trequency conter
040.3% | 2,980 + 10Hz |
Frequency difference between the beginning and the end of
the tape should be within 1.5% (45Hz).
Adjustment location:
DECK-A side RV502
DECK-B side RV504
3. If the specifications are not satisfied, repeat step 1
and 2.
PLAYBACK LEVEL ADJUSTMENT
DECK A/DECK B
Procedure:
Mode: FWD playback
test tape
P-4-L300
(315kHz, OdB)
be
LINE OUT
Adjust,
DECK-A side RV101 (L-CH), RV201 (R-CH)
DECK-B side RV102 (L-CH), RV202 (R-CH)
so that the specifications are satisfied.
Measurement limit :
LINE OUT level: 0.44V (—5dB)
level difference between the channels: within 0.5dB
RECORD BIAS ADJUSTMENT | DECK B
Setting :
TAPE SELECT: TYPE-I (DECK-B)
Procedure:
1. Mode: record
tar OSC blank tape
oa CS-123
Pell lak
T1000% 1,000 J a]
a
LINE IN
1) 315Hz >} 0.025V (— 30dB)
2) 10kHz
2. Mode: playback
recorded
portion
LINE OUT
Playback the tape recorded in step 1. If the specification is
not satisfied, adjust CT301 and repeat steps 1 and 2.
Measurement limit :
The LINE OUT level of 10kHz signal relative to that of
315Hz: —0.5dB to 0.5dB.
RECORD GAIN ADJUSTMENT | DECK B
Setting:
TAPE SELECT: TYPE-I (DECK-B)
Procedure:
1. Mode: record
AF a] blank tape
10ka CS-123
attenuator
“sale
6000
LINE IN
315Hz, 0.25V (-—10dB)
2. Mode: playback
recorded
Portion
b=
LINE OUT
play back the recorded in step 1. If the specification is not
satisfied, adjust RV103 (L-CH), RV203 (R-CH) and repeat steps
1 and 2.
Measurement limit :
LINE OUT level: 0.44V (—5dB)
Adjustment Location: Audio Board
Conpoment side.
RVIOI RV201
RV102 RV202
—— _1C304
RV501 RV503
ey)
Sy) RV504
RV502
A
CT30!
es 6 lee
RV103 RV203
CNPS5O5 L-CH R-CH