Sony TC-W311 Service-Handbuch - Seite 8
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TC-W301 / W306
2-1.
SEMICONDUCTOR
LEAD
LAYOUTS
Tape Speed Adjustment
DECK A
Record Bias Current Adjustment
| DECK B |
Record Level Adjustment
DECK B
.
DECK
B
;
CXA1100P
2S8C945-P
Procedure:
Setting:
Setting:
CXA1198AP
2SC1815Y
:
REC LEVEL control:
standard record
(See
page 3.)
TC4051BPHB
2SD1387
Mode:
FWD playback
rai
a
I
(
pag
REC LEVEL control:
standard record (See page 3.)
test tape
counter
Procedure:
ener 0B)
1. Mode: record
Procedure:
16 1514131211109
1. Mode:
record
AF
OSC
blank tape
12345678
CS-
122
AF
ose
(Top
view)
é
c
blank tape
e
attenuator
CS-122
LINE OUT
ae]
o
attenuator
ig
al
1, Short the pins of CN504 with a wire to set the high speed mode.
6002
1Oo0°0
Cf
——
IRSESAS
eat?
LINE IN
600 2 Vs
B e
A a
:
1)
315 He
Measurement limits:
high speed
2)
10kHez } 0.025 V (-30 08)
LINE IN
315
Hz, 0.025V(—30d8
Speed checker
Digital frequency counter
s
;
/
Ls}
6,000 + 20 Hz
2. Mode:
playback
lea)
RS 155
123456789
ti
Frequency difference between the beginning and the end of the
(recorded in step 1.)
2. Mode:
playback
{\
tape should be within 1.5% (90 Hz).
CS-122
Boece
(recorded in step 1.)
Adjustment Location:
0
see
DECK-A:
RV501
LA3160
HZS6A1L
DECK-B: RV503
LINE OUT
2. Remove the wire in step 1. (CN504)
Measurement limits:
| normal speed
Speed checker
Digital frequency counter
3000 #10 i
Frequency difference between the beginning and the end of the
Playback the tape record in step 1. If the measurement
limits
is not
satisfied,
adjust
C408-1
(L-CH),
C408-2
(R-CH) and repeat steps 1 and 2.
Measurement
limits :
The LINE OUT level of 10 kHz signal relative to that of 315 Hz:
-0.5 dB to 0.5 dB.
LINE OUT
Playback
the tape recorded
in step 1. If the measurement
limits
is not
satisfied,
adjust
RV141
(L-CH),
RV241
(R-CH) and repeat steps 1 and 2. If the level difference
between the channels is still 1 dB or more, divide it to the
both channels on the basis of —5 dB.
f/f
'
ALIAN\N.
GELS
HZL11CH2
i cathode
anode
tape should be within 1.5% (45 Hz).
sMegsurementumits:
LINE
OUT
level:
0.041 - 0.045
V (-25
+ 0.5 dB)
Adjustment Location:
MC14066BCP
SEL1210S-C
»PD4011BC
SEL1910A-C
DECK-A:
RV502
TC4001BP
DECK-B:
RV504
3. If the specifications are not satisfied, repeat step 1 and 2.
Adjustment Location:
peg
tz 1410 9B
long
short
[AUDIO
BOARD]
~
COMPONENT
SIDE —
se
4567
(Top view)
cathode
anode
RV141:
REC Level Adj, L-CH
Playback Level Adjustment
*
i
RV503: High Speed, Deck B
Procedure:
RV501: High Speed, Deck A
2SC3623A- LK
SEL4214S
Mode:
FWD playback
RV502: Normal Speed, Deck A
test
t.
:
:
P4300
RV504: Normal Speed, Deck B
RV241: REC Level Adj., R-CH
ak
(315 Hz, 0d8)
CN504:
High Speed Mode
RV102: PB Level Adj.,L-CH, Deck B
RV202: PB Level Adj., R-CH, Deck B
C408: REC BIAS Current Adj
ee
&
1 ANODE
LINE OUT
Ee
2 CATHODE
RV101:
PB Level Adj., L-CH Deck A
Adjust,
RV201: PB Level Adj., R-CH, Deck A
DECK-A:
RV101
(L-CH), RV201 (R-CH)
DTA114ES
1SS202- 1
DECK-B:
RV102 (L-CH), RV202 (R-CH)
nied nae
10E2N
so that the measurement
limits are satisfied.
DTC144ES
2SC2603- EF
Measurement limits:
LINE OUT level: 0.180 - 0.146 V (-15 + 0.5 dB)
level difference
between the channels:
within 0.5 dB
cathode
anode