DOWNLOAD Sony ICF-CD543RM Service Manual ↓ Size: 2.83 MB | Pages: 57 in PDF or view online for FREE

Model
ICF-CD543RM
Pages
57
Size
2.83 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-cd543rm.pdf
Date
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Sony ICF-CD543RM Service Manual ▷ View online

ICF-CD543RM
11
3-12. OPTICAL  PICK-UP (KSS-213R)
2
two screws (M2)
1
gear (B)
4
sled shaft
5
optical pick-up
(KSS-213R)
3
12
ICF-CD543RM
(
): AEP model
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
RV1
1,000 kHz (999 kHz)
(
): AEP model
AM VCO VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L2
530 kHz
2.3 
± 0.05 V
Confirmation
1,710 kHz
9.3 
± 2.0 V
(1,602 kHz)
(8.6 
± 1.5 V)
(
): AEP model
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
580 kHz (621 kHz)
CT1
1,490 kHz (1,395 kHz)
FM/TV (2 – 6 CH) VCO VOLTAGE CONFIRMATION (US model)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
Confirmation
108 MHz
14.2 
± 2.0 V
Confirmation
TV 2 ch
2.2 
± 0.4 V
FM/TV (2 – 6 CH) TRACKING ADJUSTMENT (US model)
Adjust for a maximum reading on level meter
L3
TV 2 ch
CT2
108 MHz
TV (7 – 13 CH)/WEATHER (1 – 7 CH)
VCO VOLTAGE CONFIRMATION (US model)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
Confirmation
TV 13 ch
9.2 
± 1.5 V
Confirmation
WEATHER 2 ch
4.2 
± 0.5 V
TV (7 – 13 CH)/WEATHER (1 – 7 CH)
TRACKING ADJUSTMENT (US model)
Adjust for a maximum reading on level meter
L4
WEATHER 2 ch
CT3
TV 13 ch
FM VCO VOLTAGE CONFIRMATION (Canadian, AEP models)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
Confirmation
87.5 MHz
2.5 
± 0.4 V
Confirmation
108.0 MHz
9.0 
± 2.0 V
FM TRACKING ADJUSTMENT (Canadian, AEP models)
Adjust for a maximum reading on level meter
L3
87.5 MHz
CT2
108 MHz
Adjustment Location: MAIN board (See page 14)
TUNER  SECTION
0 dB=1 
µ
V
[AM]
Setting:
Function : RADIO
RADIO ON/BAND button : AM
[FM/TV/WEATHER]
Setting:
Function : RADIO
RADIO ON/BAND button: FM or TV or WEATHER
• Repeat the procedures in each adjustment several times, and the
tracking adjustments should be finally done by the trimmer ca-
pacitors.
• Remove FM antenna in FM adjustment.
AM RF signal 
generator
30% amplitude
modulation by
400 Hz signal
Output level: 
as low as possible
Put the lead-wire
antenna close to 
the set.
+
–
level meter
set
4.0 
Ω
MAIN board
CN371 pin 
3
MAIN board
CN371 pin 
4
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: 
as low as possible
+
–
level meter
MAIN board
CN371 pin 
3
MAIN board
CN371 pin 
4
set
4.0 
Ω
0.01 
µ
F
MAIN board
TP (FM GND)
MAIN board
TP (FM IN)
digital voltmeter
TP (VT)
TP (FM GND)
100 k
Ω
MAIN board
SECTION  4
ELECTRICAL  ADJUSTMENTS
digital voltmeter
TP (VT)
TP (AM GND)
100 k
Ω
MAIN board
13
ICF-CD543RM
FM STEREO ADJUSTMENT
Setting:
Function: RADIO
RADIO ON/BAND button: FM
1. Connect the frequency counter to TP (FMST) and TP (RA-
DIO +B) as shown the figure below.
2. Tune the set to 87.5 (98.0) MHz.
3. Adjust RV2 for 75.95 to 76.05 kHz reading on the frequency
counter.
Adjustment Location: MAIN board (See page 14)
33 k
Ω
+
+
–
MAIN board
TP (FMST)
TP (RADIO +B)
TP (FM GND)
frequency counter
1 
µ
F/50 V
set
MAIN board
TP (FM IN)
MAIN board
TP (FM GND)
(   ): Canadian, AEP models
0.01 
µ
F
Carrier frequency : 87.5 (98.0) MHz
Modulation
: no modulation
Output level
: 0.1 V (100 dB)
FM RF SSG
14
ICF-CD543RM
– MAIN BOARD (Component Side) –
– MAIN BOARD (Conductor Side) –
CT2
FM/TV (2 – 6 ch) Tracking Adjustment (US model)
L3
} 
FM Tracking Adjustment (Canadian, AEP models)
L4
TV (7 – 13 ch)/WEATHER (1 – 7 ch) Tracking Adjustment (US model)
CT3
}
CT1
AM Tracking Adjustment
L1
}
RV2 FM Stereo Adjustment
RV1 AM IF Adjustment
L2 AM VCO Adjustment
TP
(VT)
TP
(FM IN)
TP
(FM GND)
TP
(AM GND)
TP
(RADIO B+)
4
CN371
1
TP
(FM ST)
Adjustment Location:
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