Sony ICF-CD832 Service Manual ▷ View online
9
ICF-CD832
3-4. MAIN BOARD, DRIVE BOARD
3-5. KEY (A) BOARD, KEY (B) BOARD
7
five screws
(P 3x10)
9
MAIN board
2
Removal the solders.
3
Removal the solders.
5
Removal the solders.
4
shield plate (main)
chassis assy
1
CN601
8
CN501
6
DRIVE board
1
two screws
(B 2x8)
3
three screws
(B 2x8)
2
KEY (A) board
4
KEY (B) board
10
ICF-CD832
3-7. OPTICAL PICK-UP
3-6. CD MECHANISM DECK
1
two screws
(PWH 2.6x10)
5
screw
(BVTT 2x6)
6
Removal the solders.
8
CD board
0
CD mechanism deck
7
Removal the solders.
4
CD cover
2
two screws
(PWH 2.6x10)
9
CNP701
3
2
screw
(PWB tapping (M2))
3
screw
(PWB tapping (M2))
1
gear (A)
claw
5
sled shaft
6
optical pick-up
4
11
ICF-CD832
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
CT4
520 kHz
1,750 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
600 kHz
1,400 kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
10.7 MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L5
CT3
86.5 MHz
109.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
CT2
86.5 MHz
109.5 MHz
Adjustment Location: See page 12.
TUNER SECTION 0 dB = 1 µV
SECTION 4
ELECTRICAL ADJUSTMENTS
• FM Section
Setting:
BAND switch: FM
VOLUME control: MIN
BAND switch: FM
VOLUME control: MIN
FM lead wire
antenna terminal
antenna terminal
FM RF signal
generator
generator
0.01 F
set
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
deviation by 1 kHz signal
output level : as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
AM RF signal
generator
generator
• AM Section
Setting:
BAND switch: AM
VOLUME control: MIN
BAND switch: AM
VOLUME control: MIN
30% amplitude
modulation by
400 Hz signal
modulation by
400 Hz signal
digital
voltmeter
voltmeter
100 k
Ω
TP (VT)
speaker terminal
set
16
Ω
level meter
(range: 0.5–5 V ac)
(range: 0.5–5 V ac)
• Connecting Level Meter (FM and AM)
• Connecting Digital Voltmeter (FM and AM)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
12
ICF-CD832
Adjustment Location:
L5
L4
BPF1
L2
L1
ANT1
CN301
SP101
(SPEAKER)
FM LEAD WIRE
ANTENNA
IC1
S1
RV301
CV1
TUNING
CT3
T2
FM IF
ADJUSTMENT
CT4,L4
AM FREQUENCY
COVERAGE
ADJUSTMENT
CT1,L1
AM TRACKING
ADJUSTMENT
CT2,L2
FM TRACKING
ADJUSTMENT
CT3,L5
FM FREQUENCY
COVERAGE
ADJUSTMENT
T1
AM IF
ADJUSTMENT
— MAIN BOARD (component side) —
1
4
CT2
CT1
CT4
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