Sony CFS-1055L Service Manual ▷ View online
– 9 –
frequency counter
1
F
33k
Ω
µ
[ TUNER BOARD ]
+
VCO Adjustment
Procedure :
Procedure :
FM RF signal
generator
generator
set
0.01 F
Carrier frequency : 98MHz
Modulation : no modulation
Output level : 0.032V (90dB)
Modulation : no modulation
Output level : 0.032V (90dB)
µ
telescopic
antenna
terminal
antenna
terminal
1. Connect the frequency counter to 4 and 7 pins of IC1 as shown
the figure.
2. Turn the set to 98MHz.
3. Adjust RV1 for 76 kHz
3. Adjust RV1 for 76 kHz
±
500 Hz reading on frequency counter.
Adjustment Location : Tuner board (Component side)
T1 : AM IF Alignment
L1 : FM Tracking Adjustment
CT1 : FM Tracking Adjustment
L21 : FM Frequency Coverage Adjustment
CT2 : FM Frequency Coverage Adjustment
CT4 : MW Frequency Coverage Adjustment
CT10 : LW Frequency Coverage Adjustment
SW Frequency Coverage Adjustment
CT6
CT5
L6
L5
L8 : MW Frequency Coverage Adjustment
L4 : LW Frequency Coverage Adjustment
CT3 : MW Tracking Adjustment
RV1 : FM VCO Adjustment
SW Tracking Adjustment
L3 : MW Tracking Adjustment
L9 : LW Tracking Adjustment
CT9 : LW Tracking
Adjustment
– 20 –
SECTION 5
EXPLODED VIEWS
NOTE :
r
-XX, -X mean standardized parts, so they may
have some difference from the original one.
have some difference from the original one.
Parts color Cabinet's color
r
Items marked “ * ”are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
delay should be anticipated when ordering these
items.
r
The mechanical parts with no reference num-
ber in the exploded views are not supplied.
ber in the exploded views are not supplied.
r
Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
packing materials are given in the last of this
parts list.
The components identified by mark
!
or dotted line with mark
! are critical
for safety.
Replace only with part number speci-
fied.
Replace only with part number speci-
fied.
5-1. REAR CABINET SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
–––––––
–––––––
––––––––––
–––––––
–––––––
–––––––
––––––––––
––––––
*
1
1-658-698-11
POWER BOARD
2
1-533-217-31
HOLDER, FUSE
4
3-930-876-21
CABINET (REAR)
5
3-930-878-01
HANDLE
6
3-364-556-01
LID, BATTERY CASE
7
3-364-532-01
TERMINAL (+, –), BATTERY
8
3-930-901-01
SPRING (BATT –)
9
3-930-900-01
SPRING (BATT +)
ANT901 1-501-383-21
ANTENNA, TELESCOPIC
! F902
1-532-285-00
FUSE (T1.25A 250V)
! T901
1-423-995-11
TRANSFORMER, POWER
6
8
9
not supplied
not supplied
FRONT PANEL SECTION
T901
F902
7
#2
#8
5
4
#8
#1
#1
2
ANT901
not supplied
1
– 21 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
–––––––
–––––––
––––––––––
–––––––
–––––––
–––––––
––––––––––
––––––
51
3-930-875-21
CABINET (FRONT)
52
3-366-963-01
CUSHION (MIC)
53
3-364-526-01
KNOB (VOL)
54
A-3304-152-A
HOLDER ASSY, CASSETTE
*
55
3-931-458-01
SHEET (D) (4 BAND), ADHESIVE
56
3-930-897-01
WINDOW (4 BAND), SCALE
57
3-930-880-01
BUTTON (PAUSE), MD
58
3-930-881-01
BUTTON (STOP/EJECT), MD
59
3-930-882-01
BUTTON (FF), MD
60
3-930-883-01
BUTTON (REW), MD
61
3-930-884-01
BUTTON (PLAY), MD
62
3-930-885-01
BUTTON (REC), MD
63
3-930-890-01
LEVER (REC)
64
3-930-886-01
POINTER
65
3-930-899-01
SPRING (CASSETTE)
66
3-351-377-01
DAMPER
67
3-930-888-01
KNOB (FUN)
*
68
1-658-702-11
SWITCH BOARD
69
3-930-887-01
KNOB (TUN)
*
70
A-3269-114-A
TUNER BOARD, COMPLETE
*
71
3-930-879-01
CHASSIS
*
72
A-3305-492-A
MAIN BOARD, COMPLETE
*
73
1-658-703-11
RETAINER BOARD
*
74
1-658-700-11
ECM BOARD
*
75
1-658-701-11
JACK BOARD
*
76
1-658-699-11
VOLUME BOARD
77
3-930-889-01
KNOB (S-MODE)
78
3-907-639-01
KNOB (F.T)
79
3-930-891-01
KNOB (BAND)
80
4-951-620-01
SCREW (2.6X8) +BVTP
55
56
54
53
57
58
60
59
61
62
63
64
71
69
66
65
76
75
80
74
MF-1055
73
73
79
80
80
not
supplied
supplied
80
80
80
80
77
#4
52
67
68
51
#1
#1
#5
#6
72
73
#9
#3
78
70
not supplied
5-2. FRONT PANEL SECTION
80
73
73
80
– 22 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
–––––––
–––––––
––––––––––
–––––––
–––––––
–––––––
––––––––––
––––––
101
3-596-931-01
BELT, RF
102
3-913-441-01
CLUTCH ASSY, RF
103
3-348-366-01
LEVER, EJECT SLIDE
104
3-913-442-01
WASHER, POLY-SLIDER
105
3-913-434-01
WASHER, POLY-SLIDER
106
3-348-370-01
SCREW (M2X5), P TIGHT BIND
107
3-348-380-01
SENSOR
108
3-913-429-01
SPRING, BACK TENSION
109
3-913-430-01
REEL ASSY, SUPPLY
110
3-348-368-01
LEVER, REC SAFETY
111
3-913-431-01
REEL ASSY, TAKE-UP
112
3-348-357-01
GEAR, FF
113
3-348-367-01
PLATE, SP, PACK RETAINER
114
3-348-369-01
SCREW (M2X3), C TIGHT
115
3-348-335-01
CHASSIS ASSY
116
3-598-855-01
MOTOR COLLER SCREW
*
117
3-931-466-01
BRACKET, MOTOR
118
3-395-984-01
PULLEY, MOTOR
119
3-348-336-01
SPRING
120
3-395-995-01
SCREW, MB
121
3-913-432-01
BELT, MAIN
122
3-348-356-01
FLYWHEEL ASSY
123
3-348-373-01
WASHER, POLYETHYLENE SLIDER
124
3-348-353-01
GEAR, CAM
125
3-913-433-01
WASHER, POLY-SLIDER
126
3-348-371-01
SCREW (M2X4.5), CAMERA TAPPING
127
3-348-341-01
SPRING
128
3-348-337-01
SPRING
M501
1-698-694-11
MOTOR (9B)
5-3. MECHANISM DECK SECTION (1)
(MF-1055)
M501
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