DOWNLOAD Sony ICF-M1000 Service Manual ↓ Size: 1.33 MB | Pages: 27 in PDF or view online for FREE

Model
ICF-M1000
Pages
27
Size
1.33 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-m1000.pdf
Date
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Sony ICF-M1000 Service Manual ▷ View online

ICF-M1000
5
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY  FLOW
SECTION  3
DISASSEMBLY
Note:
 Follow the disassembly procedure in the numerical order given.
3-2. PANEL (FRONT)  SECTION
SET
3-2. PANEL (FRONT) SECTION
(Page 5)
3-3. PANEL (TOP) SECTION, CHASSIS (MAIN) SECTION
(Page 6)
3-4. MAIN BOARD, AMPLIFIER BOARD
(Page 6)
3
six screws
(R3.1 
×
 13)
4
screw
(B3)
5
6
flexible flat (11 core) cable
(CN304)
7
panel (front) section
1
three bosses
2
speaker net sub assy
1
three bosses
ICF-M1000
6
3-3. PANEL (TOP)  SECTION,  CHASSIS (MAIN)  SECTION
3-4. MAIN  BOARD,  AMPLIFIER  BOARD
7
cover (jack)
6
three claws
2
panel (top) section
1
flexible flat (20 core) cable
(CN403)
4
connector
(CN305)
3
two screws
(B3)
9
chassis (main) section
8
four screws
(B3)
5
two speaker liad wires
(CN301)
CN301
speaker liad wire
(GRY)
speaker liad wire
(RED)
2
four screws
(B3)
5
four screws
(B3)
6
nut (antenna)
(US, Canadian)
9
lug
8
coaxial (F type) connector
4
MAIN board
1
flexible flat (19 core) cable
(CN2)
q;
flexible flat (19 core) cable
(CN3)
qa
AMPLIFIER board
3
two claws
7
two claws
Ver. 1.2
7
ICF-M1000
AM  TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter
T1
450 kHz
(  ): AEP, UK models
AM  FREQUENCY  COVERAGE  ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L2
530 (531) kHz
2.9 (2.975) 
±
 0.1 (0.025) V
Confirmation
1,710 (1,602) kHz
11.0 (9.5) 
±
 1.5 V
(  ): AEP, UK models
AM  TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter
L1
580 (621) kHz
CT1
1,490 (1,404) kHz
(  ): AEP, UK models
FM  FREQUENCY  COVERAGE  CONFIRMATION
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
87.5 MHz
2.9 (2.85) 
±
 0.5 (0.15) V
Confirmation
108 MHz
9.0 (10.0) 
±
 2.0 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L4
87.5 MHz
CT2
108 MHz
Adjustment Location: MAIN board (See page 8)
FM  VCO ADJUSTMENT
Setting:
Procedure:
1. Connect the frequency counter to TP9 (MPX), TP8 (RADIO
+B) on the MAIN board, as shown the figure below.
2. Tune the set to 87.5 MHz.
3. Adjust RV1 on the MAIN board for 76 kHz reading on the
frequency counter.
Specified Value: 75.7 to 76.3 kHz
Adjustment Location: MAIN board (See page 8)
SECTION  4
ELECTRICAL  ADJUSTMENTS
0 dB=1 
µ
V
[AM]
Setting:
Function : RADIO
Band
: AM
[FM]
Setting:
Function : RADIO
Band
: FM
• Repeat the procedures in each adjustment several times, and
tracking adjustments should be finally done by the trimmer
capacitors.
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 
Ω
MAIN board
headphone jack (J303)
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
+
–
level meter
set
4 
Ω
0.01 
µ
F
MAIN board
TP18 (FM ANTIN)
MAIN board
headphone jack (J303)
MAIN board
TP2 (RF GND)
digital voltmeter
100 k
Ω
MAIN board
TP1 (VT)
FM RF SSG
Carrier frequency: 87.5 MHz
Modulation: 400 Hz, 30% FM modulation
Output level: 0.1 V (100 dB)
MAIN board
TP18 (FM ANTIN)
0.01 
µ
F
set
MAIN board
TP2 (RF GND)
1 
µ
F
TP9 (MPX)
+
–
frequency counter
33 k
Ω
TP8 (RADIO +B)
+
MAIN board
Ver. 1.3
8
ICF-M1000
T1
AM IF Adjustment
L2
AM Frequency
Coverage Adjustment
RV1
FM VCO
Adjustment
AM Tracking Adjustment
CT1
L1
FM Tracking Adjustment
L4
CT2
– MAIN Board (Component Side) –
– MAIN Board (Conductor Side) –
TP2
(RF GND)
TP18
(FM ANTIN)
TP8
(RADIO +B)
TP9
(MPX)
TP1
(VT)
Adjustment and Connecting Location:
Page of 27
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