Sony SRF-HM03V Service Manual ▷ View online
13
SRF-HM03V
MICON BOARD IC301 TC9329FA-112 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 4
COM1 to COM4
O
Common drive signal output to the liquid crystal display
5 to 15
S1 to S11
O
Segment drive signal output to the liquid crystal display
16
P8-1
I
Not used
17
TR TEST
I
Setting terminal for TR mode (fixed at “L” in this set)
18
P8-3
I
Not used
19, 20
P9-0, P9-1
I
Not used
21, 22
KS1, KS2
O
Key scan signal output to the key matrix
23 to 25
KR1 to KR3
I
Key return signal input from the key matrix
26
P1-3
I
Not used
27
VDD
—
Power supply terminal (+1.5V)
28
BEEP
O
Beep sound signal output terminal “H”: beep sound on
29
MEGA BASS
O
Mega bass control signal output to the headphone power amplifier “H”: mega bass on
30
AM BAND
O
AM band selection signal output terminal “H”: AM
31
MUTE
O
Muting control signal output to the headphone power amplifier “L”: muting on
32
MUTE
O
Muting control signal output terminal Not used
33
TEST
I
Setting terminal for test mode Not used
34
POWER SW
I
POWER switch input terminal “H”: power on
35
INT1
I
Battery voltage (1.0V) detection signal input terminal “L”: low battery
36
IF IN2
I
Not used
37
GND
—
Ground terminal
38
OSC IN
I
FM/TV/WEATHER/AM OSC signal input from the tuner circuit
39
VDD
—
Power supply terminal (+1.5V)
40
D0
O
PLL phase comparator output terminal
41
V REG
—
Power supply terminal (connected to the coupling capacitor)
42
POWER ON2
O
Power on/off signal output terminal “L”: power on
43
FM BAND
O
FM band selection signal output terminal “L”: FM/TV (2ch to 6ch) (fixed at “L” in this set)
44, 45
P3-2, P3-3
I
Not used
46
REF SW
I
TV reference frequency selection signal input terminal “L”: 3.125kHz, “H”: 6.25kHz
(fixed at “L” in this set)
(fixed at “L” in this set)
47 to 49
P5-1 to P5-3
I
Not used
50
MONO/ST
O
Mono/stereo selection signal output terminal “L”: mono, “H”: stereo
51
POWER ON1
O
Power on/off control signal output to the headphone power amplifier “H”: power on
52
BAND1
O
Band selection signal output to the FM/TV/AM front-end
“L”: AM, “H”: FM/TV/WEATHER
“L”: AM, “H”: FM/TV/WEATHER
53
BAND2
O
Band selection signal output to the FM/TV/AM front-end
“L”: FM/TV (2ch to 6ch), “H”: TV (7ch to 13ch)/WEATHER/AM
“L”: FM/TV (2ch to 6ch), “H”: TV (7ch to 13ch)/WEATHER/AM
54
RESET
I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
55
XOUT
O
System clock output terminal (75 kHz)
56
XIN
I
System clock input terminal (75 kHz)
57
GND
—
Ground terminal
58
VDB
—
Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply
59, 60
C1, C2
—
Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply
61
VEE
—
Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply
62, 63
C3, C4
—
Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply
64
VCLD
—
Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply
•
IC Pin Function Description
14
SRF-HM03V
5-1.
CABINET (L) SECTION
SECTION 5
EXPLODED VIEWS
1
2
3
3
3
17
6
7
3
8
10
12
18
11
9
13
1
14
1
3
3
16
3
5
4
not supplied (POWER board)
not supplied
cabinet (R) section
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories are given in the last of the elec-
trical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-252-825-11 SCREW (1.7)
2
X-2022-501-1 FRONT (L), CABINET ASSY
3
3-254-136-11 SCREW (B1.4)
4
3-265-196-01 LID (PWB BATT)
5
3-265-168-11 KNOB
6
3-265-178-01 REAR (L), CABINET
7
3-265-180-01 RAIL (L)
8
A-4577-095-A EARPHONE (L) ASSY
9
3-236-801-01 TERMINAL (+), BATTERY
10
3-265-184-01 LID (SUB), BATTERY CASE
11
3-265-183-01 LID (MAIN), BATTERY CASE
12
3-236-806-01 PACKING
13
3-265-185-01 LEVER
14
3-265-199-01 TERMINAL (-), BATTERY
15
3-254-135-01 SCREW (B1.4)
16
3-265-167-01 BELT (RUBBER)
17
3-265-197-01 SEAL, REFLECTION
18
2-067-037-01 CUSHION (SIDE)
15
SRF-HM03V
5-2.
CABINET (R) SECTION
51
69
68
66
72
67
60
65
71
64
63
61
58
59
60
57
53
52
54
52
56
55
board section
(MAIN board)
(MAIN board)
board section
(MICON board)
(MICON board)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
A-4577-093-A EARPHONE (R) ASSY
52
3-254-136-11 SCREW (B1.4)
53
3-265-179-01 RAIL (R)
54
3-265-177-01 REAR (R), CABINET
55
3-254-135-01 SCREW (B1.4)
56
3-265-204-01 WASHER, POLYETHYLENE
57
3-265-168-01 KNOB
58
1-786-719-11 SWITCH, RUBBER KEY
59
X-2022-050-1 FRONT (R), CABINET ASSY
60
3-252-825-11 SCREW (1.7)
61
3-265-195-01 BUTTON (+, -)
63
3-241-280-01 SHEET (A)
64
3-265-166-01 BELT, MAIN
65
1-828-817-11 WIRE, LEAD (6 CORE)
66
3-265-185-01 LEVER
67
2-067-037-01 CUSHION (SIDE)
68
3-236-793-01 O RING (VOL)
69
3-265-188-01 KNOB (VOL)
70
3-265-197-01 SEAL, REFLECTION
71
1-823-894-21 WIRE, LEAD (RITZ WIRE)
72
3-265-197-01 SEAL, REFLECTION
16
SRF-HM03V
5-3. BOARD SECTION
109
107
108
103
102
106
101
104
LCD301
MICON board
L3
not supplied
BATT2
MAIN board
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 101
3-236-792-01 CASE (LCD)
102
1-780-125-11 CONDUCTIVE BOARD, CONNECTION
103
3-265-189-01 HOLDER (LCD)
104
3-265-201-01 LEAF (UCOM), COPPER
BATT2
1-756-305-11 BATTERY, PAS SECONDARY
* 106
A-4547-261-A MICON BOARD, COMPLETE
* 107
A-4547-258-A MAIN BOARD, COMPLETE
108
3-254-135-11 SCREW (B1.4)
109
3-265-190-01 HOLDER (BAR ANT)
L3
1-419-843-21 COIL, FERRITE-ROD ANTENNA (MW)
LCD301 1-804-537-11 DISPLAY PANEL, LIQUID CRYSTAL
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