Sony TC-W311 - Page 8

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
Be
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