Sony WM-GX410 Service Manual

9
WM-GX410
Adjustment Location:
L3 : AM Tracking Adjustment
L7 : AM Frequency
coverage
adjustment
RV1 : FM VCO adjustment
RV2 : AM IF adjustment
L4 : FM Tracking Adjustment
CT1 :
AM Tracking Adjustment
RV602 : Tape Speed Adjustment (4.8cm/s)
RV601: Tape Speed Adjustment (2.4cm/s)
MAIN BOARD (SIDE B)
MAIN BOARD (SIDE A)
FM VCO Adjustment
Procedure:
TP(LPF)
TP8
Q308
C43
R313
Q307
R3
C56
R10
C17
R6
C89
R13
R312
C16
C8
C12
R18
Q3
RV1
C31
RV2
C49
R22
+
+
TP8
(IC1 7 pin)
1
µ F
frequency
counter
10k Ω
[MAIN BOARD]
(SIDE A)
1. Connect the resistor 10kΩ between TP8 and TP(LPF).
2. Connect the frequency counter to TP8 (IC8 7 pin).
3. Set FUNCTION switch to FM.
4. Tune the set in 98MHz.
5. Adjust RV1 so that the reading on the frequency counter be-
comes 76 kHz.
Specifications: 75 kHz - 77 kHz
-3
-4
S302
R
908
C
ND
CND
T
P
TAP66
4
FB305
FB306
C40
C905
C5
2
C920
C35
REC
PB
t
FM RF SSG
[MAIN BOARD] (SIDE B)
Carrier frequency : 98MHz
Deviation : None
Output level : 562
µ V (55dB)
TAP66
(ANT)
0.01
µ F
TAP66
Adjustment Location: Main board (See page 9)

Sony WM-GX410 Specifications

General

Brand	Sony
Model	WM-GX410
Category	Cassette Player
Language	English