DOWNLOAD Sony ICF-SW35 Service Manual ↓ Size: 1.83 MB | Pages: 23 in PDF or view online for FREE

Model
ICF-SW35
Pages
23
Size
1.83 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / S/M ICF-SW35 00 US CAN AEP E
File
icf-sw35.pdf
Date
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Sony ICF-SW35 Service Manual ▷ View online

– 5 –
– 6 –
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET (REAR)
2-2. MAIN BOARD
SECTION 2
DISASSEMBLY
1
 P 3x14
5
 cabinet (rear)
2
 P 3x14
4
 claw
3
 claws
2
 P 3x14
1
 Removal the solder.
6
 MAIN board
5
 CN1
3
 claw
4
 claw
– 7 –
2-3. MICON BOARD
1
 BTP 2x8
2
 BTP 2x8
3
 MICON board
– 8 –
  FM SECTION     0 dB = 1 µV
Setting:
BAND switch: FM
VOLUME: MAX
ATT: OFF
TONE: MUSIC
SECTION 3
ELECTRICAL ADJUSTMENTS
telescopic
antenna terminal
0.01
µ
F
FM RF signal
generator
400Hz, 30% FM modulation
frequency deviation 
±
22.5kHz
Output level: as low as possible
set
  SW/MW/LW SECTION
Setting:
BAND switch: SW or MW or LW
VOLUME: MAX
ATT: OFF
TONE: MUSIC
(SW)
telescopic
antenna terminal
10
µ
F
AM RF signal
generator
400Hz, 30% 
AM modulation
Output level: as low as possible
set
(MW/LW)
• Connecting Level Meter (FM, SW, MW and LW)
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
400Hz, 30%
 AM modulation
Output level: as low as possible
i
 jack (J1)
set
16 
Ω
level meter
(range: 0.5–5 V ac)
• Connecting Digital Voltmeter (FM, SW, MW and LW)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
digital
voltmeter
TP 
(VT)
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
Frequency Display
11,800 kHz
Adjustment Part
T1, T4
LW FREQUENCY COVERAGE
CHECK
Frequency Display
150 kHz
Reading on Digital voltmeter
1.0 - 1.3 V
Adjustment Part
<confirmation>
SW FREQUENCY COVERAGE
CHECK
Frequency Display
26,100 kHz
Reading on Digital voltmeter
8.0 - 9.0 V
Adjustment Part
<confirmation>
FM FREQUENCY COVERAGE
CHECK
Frequency Display
76 MHz
108 MHz
Reading on Digital voltmeter
2.8 - 4.0 V
9.5 - 11.0 V
Adjustment Part
<confirmation> <confirmation>
FM TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter.
Frequency Display
76 MHz
108 MHz
Adjustment Part
L11
CT1
Adjustment Location: See page 9.
Page of 23
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