DOWNLOAD Sony ICF-C115 Service Manual ↓ Size: 830.11 KB | Pages: 19 in PDF or view online for FREE

Model
ICF-C115
Pages
19
Size
830.11 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-c115.pdf
Date

Sony ICF-C115 Service Manual ▷ View online

5
ICF-C115
Note : This set can be disassemble according to the following sequence.
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. PANEL (FRONT)
3-1.
PANEL (FRONT) 
(Page 5)
SET
3-2.
CABINET (UPPER) DUAL ASSY 
(Page 6)
3-3.
MAIN BOARD SECTION
(Page 6)
3-4.
MAIN BOARD, LED101
(Page 7)
1
 P 2.6x8
2
3
 panel (front)
claws
claws
6
ICF-C115
3-2. CABINET (UPPER) DUAL ASSY
3-3. MAIN BOARD SECTION
1
 P 3x30
2
 P 3x30
3
4
 cabinet (upper) dual assy
3
 P 3x10
1
 Removal the solders.
2
 CN1
4
 MAIN board section
7
ICF-C115
3-4. MAIN BOARD, LED101
1
 P 3x10
claw
claw
3
 MAIN board
2
4
 Removal the solders.
5
 LED101
8
ICF-C115
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
CT6
86.5 MHz
109.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT5
86.5 MHz
109.5 MHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455 kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
CT4
515 kHz
1,750 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
CT3
600 kHz
1,400 kHz
  FM SECTION     0 dB = 1 µV
Setting:
BAND switch: FM
VOLUME control: MIN
  AM SECTION
Setting:
BAND switch: AM
VOLUME control: MIN
SECTION 4
ELECTRICAL ADJUSTMENTS
• Connecting Level Meter (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.
speaker terminal
set
16 
level meter
(range: 0.5–5 V ac)
Adjustment Location: See page 9.
FM lead wire
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
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
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