Sony ICF-C160 Service Manual ▷ View online
– 5 –
Note:
Follow the assembly procedure in the numerical order given.
SECTION 4
DIAL POINTER SETTING
3
Install the knob (TUNE) with
board shape position as shown
in Figure.
board shape position as shown
in Figure.
4
Install the knob (VOL)
with making position as
shown in Figure.
with making position as
shown in Figure.
5
Turn CV1 and RV1 shaft in
the arrow direction fully.
the arrow direction fully.
6
radio board
board shape
pointer
claw
A
knob (tune)
CV1
RV1
1
pointer
main board
(Component side)
(Component side)
2
Set the pointer part
A
portion to claw of chassis.
Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
(
): Italian model
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
CT4
86.5 MHz (87.35 MHz)
109.5 Hz (108.25 MHz)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
CT3
Frequency max
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
CT2
520 kHz (516.5 kHz)
1,650 kHz (1631.5 kHz)
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
600 kHz
1,400 kHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455 kHz
Clock Frequency Check
Confirm that the reading on the frequency counter is 4800 ± 400 Hz.
If frequency is higher, change capacitor value of C27.
If frequency is lower, change resistor value of R8.
If frequency is lower, change resistor value of R8.
• Adjusting Location: RADIO board (Component Side)
T1: AM IF
ADJUSTMENT
CT1: AM TRACKING
ADJUSTMENT
CT4: FM FREQUENCY
COVERAGE
ADJUSTMENT
ADJUSTMENT
L2: AM FREQUENCY
COVERAGE
ADJUSTMENT
ADJUSTMENT
L1: AM TRACKING
ADJUSTMENT
CT3: FM TRACKING
ADJUSTMENT
L4: FM FREQUENCY
COVERAGE
ADJUSTMENT
ADJUSTMENT
CT2: AM FREQUENCY
COVERAGE
ADJUSTMENT
ADJUSTMENT
SECTION 5
ELECTRICAL ADJUSTMENTS
– 6 –
[FM]
Setting:
BAND switch: FM
BAND switch: FM
[AM]
Setting:
BAND switch: AM
BAND switch: AM
IC1
+
–
–
0.01 µF
+
–
–
AM RF SSG
30% amplitude
modulation by
400 Hz signal
Outlet level: as low as possible
modulation by
400 Hz signal
Outlet level: as low as possible
set
speaker terminal
level meter
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
± 22.5 kHz frequency
deviation by 400 Hz
signal
deviation by 400 Hz
signal
FM RF SSG
set
speaker terminal
level meter
FM lead wire antenna terminal
+
–
–
frequency counter
IC2 pin
!ª
10 pF
– 12 –
•
IC Block Diagram
IC1
CXA1019S
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
FM
DISCRIMINATOR
AF POWER AMP
AM FE
FM IF
TUNING
METER
AM IF DET AGC
FM FE
23
22
21
20
24
25
19
18 17 16
29 28 27 26
30
GND
GND
AF OUT
VCC
RIPPLE
FIL
TER
AF IN
DET OUT
AFC AGC
AFC AGC
IF GND
METER
N.C
FM IF IN
AM IF IN
FM/AM BAND
SELECT
FM/AM
IF OUT
FE GND
N.C
AM RF IN
FM RF
REG OUT
FM OSC
FM RF IN
AFC
AM OSC
VOL
NF
FM DISCRI
GND
GND
– 13 –
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
SECTION 7
EXPLODED VIEWS
• Abbreviation
CND : Canadian
IT
: Italian
SP
: Singapore
AUS : Australian
(1) CABINET (UPPER) SECTION
3
4
5
6
not supplied
7
8
9
10
#1
1
2
#2
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
X-3373-826-1 PANEL ASSY, FRONT (BLACK)
1
X-3373-827-1 PANEL ASSY, FRONT (WHITE)
1
X-3373-828-1 PANEL ASSY, FRONT (SILVER)
2
3-011-578-01 SCALE, DIAL (US, CND, E)
2
3-011-578-11 SCALE, DIAL (AEP, SP, AUS)
2
3-011-578-41 SCALE, DIAL (IT)
3
3-011-569-01 BUTTON (BLACK)
3
3-011-569-11 BUTTON (WHITE)
3
3-011-569-21 BUTTON (SILVER)
4
3-011-566-01 CABINET (UPPER) (BLACK) (US, CND, E)
4
3-011-566-11 CABINET (UPPER) (WHITE) (US, CND, E)
4
3-011-566-21 CABINET (UPPER) (SILVER) (US, CND, E)
4
3-011-566-31 CABINET (UPPER) (BLACK) (AEP, IT, SP, AUS)
4
3-011-566-41 CABINET (UPPER) (WHITE) (AEP, IT, SP, AUS)
4
3-011-566-51 CABINET (UPPER) (SILVER) (AEP, IT, SP, AUS)
5
3-011-572-01 BUTTON (SNOOZE)
(SNOOZE/DATE/SLEEP OFF) (BLACK)
5
3-011-572-11 BUTTON (SNOOZE)
(SNOOZE/DATE/SLEEP OFF) (WHITE)
5
3-011-572-21 BUTTON (SNOOZE)
(SNOOZE/DATE/SLEEP OFF) (SILVER)
* 6
A-3679-888-A RADIO BOARD, COMPLETE (US, CND, E)
* 6
A-3679-889-A RADIO BOARD, COMPLETE (AEP, SP)
* 6
A-3679-901-A RADIO BOARD, COMPLETE (IT)
* 6
A-3679-902-A RADIO BOARD, COMPLETE (AUS)
7
3-013-863-01 KNOB (TUNE)
* 8
3-011-574-01 CHASSIS
9
3-011-575-01 POINTER
10
3-919-268-01 KNOB (VOL)
The components identified by mark
! or dotted line with mark ! are
! or dotted line with mark ! are
critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
Les composants identifiés par une
marque
marque
! sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le neméro spécifié.
Ne les remplacer que par une pièce
portant le neméro spécifié.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference num-
ber in the exploded views are not supplied.
ber in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
packing materials are given in the last of the
electrical parts list.
#4
Click on the first or last page to see other ICF-C160 service manuals if exist.