Page 1
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¥ 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.
¥ 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 mV
[AM]
Setting:
BAND: AM
¥ AM IF Adjustment
¥ AM VT Voltage Adjustment
¥ AM Tracking Adjustment
[FM/TV]
Setting:
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 possiblePut the lead-wire
antenna close to
the set.
+-
level meter
set
4 W
MAIN board
TP2 (GND) MAIN board
TP14 (DET OUT)
digital voltmeter
100 k W TP13 (AM VT)
TP2 (GND) +
-
MAIN board
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level: as low as possiblePut the lead-wire
antenna close to
the set.
+-
level mete r
set
4 W
MAIN board
TP (SP -) MAIN board
TP (SP +)
FM RF signal
generatorKEY board
TP204 (FM IF)
KEY board
TP119 (GND) 22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
+-
level meter
MAIN board
TP (SP -)MAIN board
TP (SP +)
set
4 W 0.01 µF
digital voltmeter
100 k W TP118 (FM VT)
TP119 (GND) +
-
KEY board
FM RF signal
generatorKEY board
TP202 (FM/TV IN)
KEY board
TP201 (GND) 22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
+-
level meter
MAIN board
TP (SP -)MAIN board
TP (SP +)
set
4 W 0.01 µF
Page 2
ICF-M350V
Ð 3 ÐÐ 4 Ð
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2-1. BLOCK DIAGRAM
2. DIAGRAMS
Adjustment Location:
D205L204
TV OSC D206 L205
FM OSC
1
5
BAND-PASS FILTER
BPF201
ANT1
FM/TV
TELESCOPIC ANTENNA
TV
RF AMP
FM
RF AMP
TV IN
FM IN +
15TV RF 14FM RF 12FM OSC 11FM OSC 9MIX OUT
BUFFER IF AMP
TV
OSC FM
OSC
8
IF
OUT
6
MODE
SW MODE
SWITCH
D203 L202
TV RF CT201
CT201, L202
TV TRACKING D204 L203
FM RF CT202
CT202, L203
FM TRACKING
T201
MIX IFT
FM IF
FM/TV RF AMP, OSC, MIX, IF AMP IC201
LEVELSHIFT Q105 LEVELSHIFT Q102
24 23
TV LOCAL IN
FM LOCAL IN
25
AM LOCAL IN
39
FM/TV BAND
SELECT SWITCH Q203, 204
AM
FRONT-END 11 15
IF
OUT
AM RF
IN
AM
OSC
AM FRONT-END
IC1 (2/2)
D2
CT1
L1
AM FERRITE-ROD ANTENNA
AM TRACKING
CT1, L1
FREQUENCY COVERAGE
L2
AM OSC
AM IF
T1
AM IFT
CF1
450kHz
17
3
CF4
IF AMP Q201
CF201
10.7MHz CF2
10.7MHz
18 FM
IF AMP
FM
IF AMP
TUNING METER
FM
DISCRIMI- NATOR
+
20METER 16
BAND
AM
IF IN
FM
DISCRI
FM
IF IN
24 DET HIGH-CUT
MUTEQ2 25
Q1
TV/MW. FM
20
BEEP
27
PD OUT
19
MUTE
AF POWER
AMP 28
AF
OUT
AF
IN
9
REG OUT
TU B+
FM/AM IF AMP, DET, AF AMP
IC1 (1/2)
4 5 NF
VOL
VOLRV1
MUTING Q3
J52
v
(EARPHONE)
SP51
(SPEAKER)
36
COMPARATOR IC51 (2/2)
BATTERY CHECK IC51 (1/2)
TU B+
MW/FM. TV
LOW-PASS FILTER
Q101, 103, 104 DC/DC
CONVERTER
Q106, 107, T101
B+ SWITCH
(FOR FM/TV) Q202, 205 2.4V
(FM/TV)
Q206
+2.4V
REGULATOR IC53
4.5V B+ SWITCHQ55
38
RADIO POWER
ON/OFF
B+ SWITCHQ56
+3V
REGULATOR IC52 3V
D52
- + DC IN 4.5V
DRY BATTERYSIZE AA
(IEC DESIGNATION R6) 3PCS. 4.5V
POWER ON/OFFCONTROL Q54
29 RESET SIGNALGENERATOR IC102 D104
8 - 1, 56 - 51
LCD3 - LCD16 14 - 12
COM1 - COM3 44 - 42
KEY SCAN0-
KEY SCAN2 48 - 45
KEY RET0-
KEY RET3
LIQUID CRYSTAL DISPLAYLCD101
KEY MATRIX S101-112
S103 5
S1021
S109 - S112+
S1083 S1052
S101
CLOCK/ ENTER S104
ALARM S107
BAND/STANDBY S110
KEY PROTECT
S102, 103, 105, 108, 111 PRESET TUNING
TIME SET
S1114
S106
POWER TUNE/ TIME
SYSTEM CONTROLLER,
LCD DRIVER, KEY CONTROL IC101
- SIGNAL PATH
: TV
: FM
: AM
6
05
J51
CE
L1 CT1
L2
AM VT Voltage Adjustment
T1
AM IF Adjustment
- MAIN BOARD (Component Side) -
ü
ï
ý
ï
þ AM Tracking Adjustment
TP (SP-)
- MAIN BOARD (Conductor Side) -
TP (SP+)
TP13 (AM VT)TP2 (GND)
TP14 (DET OUT)
TP202 (FM/TV IN)
- KEY BOARD (Component Side) -
TP201 (GND)
TP204 (FM IF)
TP119(GND)
TP118 (FM VT)
CT202 ü
ý
þ
- KEY BOARD (Conductor Side) -
L203 FM Tracking
Adjustment
T201
FM IF Adjustment
L202 ü
ý
þ
CT201 TV Tracking
Adjustment
