Sony SRF-M35 (serv.man2) Service Manual ▷ View online
— 5 —
1.
Connect the frequency counter to TP (76 kHz).
2.
Tuen the set to 98 MHz.
3.
Adjust RV1 so that the frequency counter reading becomes 76,000 Hz.
Specification Value:
Connection:
frequency counter
TP (76 kHz)
Adjustment Location
[MAIN BOARD]
(Component Side)
[MAIN BOARD]
(Conductor Side)
RV1
FM STEREO (76kHz)
Adjustment
FM STEREO (76kHz)
Adjustment
L5
AM FREQUENCY
COVERAGE Adjustment
AM FREQUENCY
COVERAGE Adjustment
CT2
L3
FM TRACKING
Adjustment
Adjustment
T1
AM IF Adjustment
AM IF Adjustment
CT1 L2
AM TRACKING
Adjustment
Adjustment
J1
IC1
L4
L1
TP (ANT)
IC2
TP
(76kHz)
IC1
TP
(LPF)
Frequency counter
75,500 - 76,500 Hz
— 6 —
SECTION 4
DIAGRAMS
4-1.
IC BLOCK DIAGRAMS
IC1 CXA1238M-T6
IC2 LA4533M
30
29
4
5
6
7
8
9
10
11
12
13 14 15
3
2
1
28 27
26 25 24 23 22 21
20
19
18
17
16
REG
FM FRONT-END
AM FRONT-END
VCO
MPX REG.
1/2
COUNTER
1/2
COUNTER
PD1
PD2
MUTING
DECODER AMP
MONO/ST
SELECT
RIPPLE
FILTER
AUTOBLEND
BAND PASS
MUTE
TUNING
INDICATOR
FM IF/
DISCRI
AM
IF/DET
GND
PLL LPF2
MPX REG
VCO
FM
DISCRI
MUTE
AM OSC
AFC
FM OSC
REG
FM RF
AM RF IN
FM RF IN
BAND SELECT
AM IF IN
FM IF IN
TUNE IND
GND
VCC
L CH OUT
R CH OUT
ST IND/
VCO CHECK
PILOT DET LPF2
PILOT DET LPF2
PLL LPF1
AGC AFC2
AGC AFC1
RIPPLE
FIL
TER
FM GND
FM/AM
FE OUT
4
3
2
1
7
8
9
10
5
6
MUTE
AMP
AMP
POWER
SWITCH
SWITCH
BIAS
VCC
SRF-M35
— 7 —
— 8 —
4-2.
BLOCK DIAGRAM
16
SRF-M35
— 9 —
— 10 —
4-3.
PRINTED WIRING BOARDS
Ref. No.
Location
D1
C-5
D2
E-4
D3
D-5
D3
B-5
D101
F-10
D102
B-10
D103
B-10
IC1
D-3
IC2
A-3
IC101
C-8
IC102
E-11
Q1
E-5
Q2
E-3
Q101
B-10
Q102
C-10
Q103
B-11
Q104
D-9
Q106
B-9
Q107
B-10
• Semiconductor
Location
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
W
: indicates side identified with part number.
•
f
: internal component.
•
: Pattern of the rear side.
•
: Carbon pattern.
• Abbreviation
FR
: French model.
PA
: Panama model.
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