Sony ICF-M760S / ICF-M760SL Service Manual ▷ View online
– 17 –
• Waveforms
1
IC201
@∞
(X IN)
• IC Block Diagram
IC101
CXA1019S (MAIN BOARD)
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
FM
DISCRIMINATOR
AF POWER AMP
AM FE
FM IF
TUNING
METER
AM IF DET AGC
FM FE
23
22
21
20
24
25
19
18 17 16
29 28 27 26
30
GND
GND
AF OUT
VCC
RIPPLE
FIL
TER
AF IN
DET OUT
AFC AGC
AFC AGC
IF GND
METER
N.C
FM IF IN
AM IF IN
FM/AM BAND
SELECT
FM/AM
IF OUT
FE GND
N.C
AM RF IN
FM RF
REG OUT
FM OSC
FM RF IN
AFC
AM OSC
VOL
NF
FM DISCRI
GND
GND
2
Q304
1
3
T302
3
1.6 Vp-p
13.3
µ
s
4.6 Vp-p
358 ns
32.8 Vp-p
474 ns
– 18 –
Pin No.
Pin Name
I/O
Function
4-3.
IC PIN FUNCTION DESCRIPTION
KEY BOARD IC201
µPD17071GB-513-1A7 (SYSTEM CONTROL)
1
INIT OUT
O
Initialize signal output
2
POWER
O
Radio power on/off output
“H”: Radio on
3
MUTE
O
Mute signal output
“L”: Mute on
4
LOCAL/DX
O
LOCAL/DX output
“H”: LOCAL
5–9
KS0–4
O
Key strobe signal output
10–13
K0–3
I
Key return signal input
14
BAND1
O
BAND data signal output
15
BAND2
16
AM IFC
O
Not used (Fixed at “L”)
17
SD
I
Signal Detect signal input
18
GND
–
Ground
19
EO
O
PLL error output
20
VCOL
I
AM VCO (LW, MW) input
21
VCOH
I
FM VCO input
22
VREG0
–
Not used
23
VDD
–
Power supply (+3v)
24
XOUT
O
Connected to the 75 kHz crystal oscillator
25
XIN
I
26
VREG1
–
Not used
27
VLCD0
–
Power supply for liquid crystal display
28
CAP
–
Connected to the power voltage capacitor for liquid crystal display drive
29
CAP1
–
30
VLCD1
–
Power supply for liquid crystal display
31–34
COM0–3
O
Liquid crystal display common signal output
35–47
LCD0–12
O
Liquid crystal display segment signal output
48, 49
–
O
Not used (Open)
50
CE
I
Reduced voltage detection
51
NC
–
Not used (Fixed at “L”)
52
BEEP
O
Buzzer signal output
53
VDET1
I
Reduced voltage warning input
54
INIT IN
55
INIT IN
I
Destination set
56
INIT IN
Receiving
BAND1
BAND2
FM
L
L
LW (M760SL)
L
H
MW (M760S)
L
H
SW
H
H
Tuner OFF
L
L
Initialize pin %¢ pin %∞ pin %§
M760S
L
H
L
M760SL
H
L
L
– 19 –
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference num-
ber in the exploded views are not supplied.
ber in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
packing materials are given in the last of the
electrical parts list.
SECTION 5
EXPLODED VIEW
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-013-199-01 PLATE, TRANSPARENT
2
3-013-203-01 NET, SPEAKER
3
3-014-054-01 SHEET, SPEAKER
4
3-013-191-01 CABINET (FRONT) (ICF-M760S)
4
3-013-191-21 CABINET (FRONT) (ICF-M760SL)
5
3-013-201-01 HANDLE
6
3-014-052-01 TERMINAL (–), BATTERY
* 7
1-666-407-11 INLET BOARD
* 8
1-666-406-11 POWER BOARD
* 9
3-013-204-01 PLATE (TRANSFORMER), SHIELD
10
3-013-200-01 LID, BATTERY CASE
11
3-014-053-01 TERMINAL (+. –), BATTERY
12
3-013-192-01 CABINET (REAR) (ICF-M760S)
12
3-013-192-21 CABINET (REAR) (ICF-M760SL)
13
3-014-055-01 FOOT, RUBBER
14
3-014-051-01 TERMINAL (+), BATTERY
* 15
A-3679-894-A MAIN BOARD, COMPLETE (ICF-M760S)
* 15
A-3679-899-A MAIN BOARD, COMPLETE (ICF-M760SL)
16
3-013-189-01 ADAPTOR (JOG)
17
3-013-190-01 SPRING (JOG), RING
18
3-013-188-01 KNOB (JOG)
19
3-013-197-01 KNOB (CONTROL) (VOL)
20
3-013-197-11 KNOB (CONTROL) (TONE)
* 21
3-013-187-01 CHASSIS
* 22
A-3679-895-A KEY BOARD, COMPLETE (ICF-M760S)
* 22
A-3679-900-A KEY BOARD, COMPLETE (ICF-M760SL)
23
3-013-195-01 BUTTON (SLEEP)
24
3-013-194-01 BUTTON (POWER) (
r)
25
3-013-196-01 BUTTON (PRESET) (1, 2, 3, 4,
r, 5, 6, 7)
ANT1
1-501-321-51 ANTENNA, TELESCOPIC (FM)
SP1
1-505-728-21 SPEAKER (12cm)
10
11
12
13
17
18
19
20
21
22
23
24
25
2
1
3
4
5
14
15
9
8
7
6
ANT1
#2
#1
#1
#1
#3
SP1
16
– 20 –
Ref. No.
Part No.
Description
Remark
NOTE:
•
Due to standardization, replacements in the
parts list may be different from the parts speci-
fied in the diagrams or the components used on
the set.
parts list may be different from the parts speci-
fied in the diagrams or the components used on
the set.
•
-XX and -X mean standardized parts, so they
may have some difference from the original one.
may have some difference from the original one.
•
RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
•
Abbreviation
M760S : ICF-M760S
M760SL : ICF-M760SL
M760S : ICF-M760S
M760SL : ICF-M760SL
•
Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
•
SEMICONDUCTORS
In each case, u: µ, for example:
uA. .
In each case, u: µ, for example:
uA. .
: µA. .
uPA. . : µPA. .
uPB. .
: µPB. .
uPC. . : µPC. .
uPD. .
: µPD. .
•
CAPACITORS
uF: µF
uF: µF
•
COILS
uH: µH
uH: µH
Ref. No.
Part No.
Description
Remark
SECTION 6
ELECTRICAL PARTS LIST
INLET
The components identified by mark
! or dotted line with mark ! are
! or dotted line with mark ! are
critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
C229
1-163-141-00 CERAMIC CHIP
0.001uF
5%
50V
C230
1-104-396-11 ELECT
10uF
20%
16V
C231
1-126-154-11 ELECT
47uF
20%
6.3V
C301
1-104-396-11 ELECT
10uF
20%
16V
C302
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C303
1-126-935-11 ELECT
470uF
20%
6.3V
C304
1-125-691-11 CAPACITOR
0.022F
5.5V
C305
1-126-964-11 ELECT
10uF
20%
50V
C306
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C311
1-164-346-11 CERAMIC CHIP
1uF
16V
C312
1-163-090-00 CERAMIC CHIP
7PF
0.25PF 50V
C313
1-163-038-00 CERAMIC CHIP
0.1uF
25V
C314
1-124-584-00 ELECT
100uF
20%
10V
C315
1-164-505-11 CERAMIC CHIP
2.2uF
16V
C316
1-126-177-11 ELECT
100uF
20%
10V
C317
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C318
1-126-785-11 ELECT
47uF
20%
10V
C321
1-164-232-11 CERAMIC CHIP
0.01uF
50V
C322
1-161-051-00 CERAMIC
0.01uF
10%
50V
< DIODE >
D201
8-719-988-62 DIODE 1SS355 (ICF-M760SL)
D202
8-719-988-62 DIODE 1SS355 (ICF-M760S)
D204
8-719-991-09 LED SLP381F-51-A (LCD BACK LIGHT)
D205
8-719-991-09 LED SLP381F-51-A (LCD BACK LIGHT)
D206
8-719-991-33 DIODE 1SS133T-77
D307
8-719-988-62 DIODE 1SS355
D308
8-719-977-40 DIODE DTZ13B
D309
8-719-988-62 DIODE 1SS355
< IC >
IC201
8-759-474-49 IC uPD17071GB-513-1A7
IC202
8-759-067-57 IC S-80732AN-DW-S
IC203
8-759-196-22 IC S-80736AN-D0-T1
IC301
8-759-431-95 IC S-81230SGUP-DQB-T1
< JUMPER RESISTOR >
JC201
1-216-296-00 CONDUCTOR, CHIP (3216)
JC202
1-216-296-00 CONDUCTOR, CHIP (3216)
JC203
1-216-295-00 CONDUCTOR, CHIP (2012)
JC204
1-216-296-00 CONDUCTOR, CHIP (3216)
JC205
1-216-296-00 CONDUCTOR, CHIP (3216)
JC206
1-216-296-00 CONDUCTOR, CHIP (3216)
*
1-666-407-11 INLET BOARD
***********
< AC INLET >
! J301
1-526-838-11 INLET, AC 2P (AC IN
⁄)
************************************************************
*
A-3679-895-A KEY BOARD, COMPLETE (ICF-M760S)
*
A-3679-900-A KEY BOARD, COMPLETE (ICF-M760SL)
********************
3-013-198-01 PLATE, LIGHT GUIDE
*
3-013-202-01 PLATE (LCD), SHIELD
*
3-013-205-01 PLATE (MICRO COMPUTER), SHIELD
< CAPACITOR >
C201
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C202
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C203
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C204
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C205
1-110-501-11 CERAMIC CHIP
0.33uF
10%
16V
C206
1-163-125-00 CERAMIC CHIP
220PF
5%
50V
C207
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C208
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C209
1-163-197-00 CERAMIC CHIP
470PF
5%
50V
C210
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C211
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C212
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C213
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C214
1-163-197-00 CERAMIC CHIP
470PF
5%
50V
C215
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C216
1-164-346-11 CERAMIC CHIP
1uF
16V
C217
1-163-033-00 CERAMIC CHIP
0.022uF
50V
C218
1-163-038-00 CERAMIC CHIP
0.1uF
25V
C219
1-164-346-11 CERAMIC CHIP
1uF
16V
C220
1-163-243-11 CERAMIC CHIP
47PF
5%
50V
C221
1-163-099-00 CERAMIC CHIP
18PF
5%
50V
C222
1-163-038-00 CERAMIC CHIP
0.1uF
25V
C223
1-163-038-00 CERAMIC CHIP
0.1uF
25V
C224
1-164-232-11 CERAMIC CHIP
0.01uF
50V
C225
1-163-038-00 CERAMIC CHIP
0.1uF
25V
C226
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C227
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C228
1-163-031-11 CERAMIC CHIP
0.01uF
50V
KEY
When indicating parts by reference
number, please include the board.
number, please include the board.
Click on the first or last page to see other ICF-M760S / ICF-M760SL service manuals if exist.