Read Sony ICF-M350V Service Manual online
– 2 –
• FM/TV Tracking Adjustment
• Repeat the procedures in each adjustment several times, and the
tracking adjustments should be finally done by the trimmer ca-
pacitors.
pacitors.
• Remove FM antenna in FM adjustment.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
450 kHz
AM VT VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L2
530 kHz
1.5
±
0.1 V
Confirmation
1,710 kHz
7 to 9 V
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
590 kHz
CT1
1,490 kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T201
10.7 MHz
FM VT VOLTAGE CONFIRMATION
Frequency Display
Reading on Digital Voltmeter
Confirmation
TV 2CH
0.9
±
0.2 V
Confirmation
108 MHz
9 to 11.5 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L203
TV 2CH
CT202
108 MHz
TV VT VOLTAGE CONFIRMATION
Frequency Display
Reading on Digital Voltmeter
Confirmation
Weather 2CH
0.7
±
0.2 V
Confirmation
TV 13CH
9.5 to 11.5 V
TV TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L202
Weather 2CH
CT201
TV 13CH
Adjustment Location: MAIN and KEY board (See page 3)
1.
ELECTRICAL ADJUSTMENTS
0 dB=1
µ
V
[AM]
Setting:
BAND: AM
BAND: AM
• AM IF Adjustment
• AM VT Voltage Adjustment
• AM Tracking Adjustment
[FM/TV]
Setting:
BAND: FM, TV or Weather
BAND: FM, TV or Weather
• FM IF Adjustment
• FM/TV VT Voltage Confirmation
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level: as low as possible
modulation by
400 Hz signal
Output level: as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
+
–
–
level meter
set
4
Ω
MAIN board
TP2 (GND)
TP2 (GND)
MAIN board
TP14 (DET OUT)
TP14 (DET OUT)
digital voltmeter
100 k
Ω
TP13 (AM VT)
TP2 (GND)
+
–
–
MAIN board
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level: as low as possible
modulation by
400 Hz signal
Output level: as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
+
–
–
level meter
set
4
Ω
MAIN board
TP (SP –)
TP (SP –)
MAIN board
TP (SP +)
TP (SP +)
FM RF signal
generator
KEY board
TP204 (FM IF)
KEY board
TP119 (GND)
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
deviation by 400 Hz
signal
Output level: as low as possible
+
–
–
level meter
MAIN board
TP (SP –)
TP (SP –)
MAIN board
TP (SP +)
TP (SP +)
set
4
Ω
0.01
µ
F
digital voltmeter
100 k
Ω
TP118 (FM VT)
TP119 (GND)
+
–
–
KEY board
FM RF signal
generator
KEY board
TP202 (FM/TV IN)
KEY board
TP201 (GND)
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
deviation by 400 Hz
signal
Output level: as low as possible
+
–
–
level meter
MAIN board
TP (SP –)
TP (SP –)
MAIN board
TP (SP +)
TP (SP +)
set
4
Ω
0.01
µ
F
Click on the first or last page to see other ICF-M350V service manuals if exist.