LG LSC27931SB Service Manual page 36

CON101
12V 12V
6
(12V)
+ CE101
CC101
47uF
104
/25V
5
(GND)
4
(TRANSFER)
3
(RECEIVE)
2
(ICING SENSOR)
1
R110
1K
CON102
(12V) 1
(5V) 2
(GND) (GND) 3
R401 2K
(AUGER MOTOR) 4
R402 2K
(SOLENOID CUBE)
5
R403 2K
(WATER VALVE)
6
R404 2K
(SOLENOID DISPENSER)
7
R409
(WATER PAD)
8
R411
(HEATER)
9
2K
(GND) 10
R413
(ICE MAKER POWER S/W)
11
(GND) 12
(DISPENSER LAMP) 13
OPTIONAL
CON103
(GND) 1
R418
2K
R419
(ICE PAD)
2
2K
Q108
3
(12V)
KRC106S
CC404
4
(GND)
104
5
(ACTIVE LED)
R421
2K
R422
6
(ACTIVE S/W)
7
(GND)
R423
15K
R424
KRC106S
8 2K
(DUCT HEATER)
Q107
KTA1298S
OPTIONAL
5V
IC102
3 1
KIA78L05F
2
+ CE102
CC102
100uF
104
/16V
R101
2K
R102
1K
Q101 ZD101 CC104
5.6V 104
KRC106S R103
4.7K
R104
16.2KF
R105
2K
CC107
+ CE104
223
10uF
/50V
OPTIONAL
R108
IC104
4.7K
R107
1
3
KIA7042AF
100
CC108 2 2
+ CE105
104
1uF
/50V
OSC101
CSTCE8M00G55 8.00M
R109
1M
8 1
Vcc CS
7 2
NO SK
CC110
6
3
104
NO DI
5 4
GND DO
Q102
KRA106S
BUZZER
Q103
BM-20B KRC106S
(4KHz)
R111
220
CE106
+
47uF
/25V
Q104
KRC106S
R405 R406 R407 R408
4.7K 4.7K 4.7K 4.7K
R410
2K
2K CC401
104 R412
4.7K
2K R414
2K
CC402
104
R415
15K
Q106
R416
KRC106S
R417
2K
4.7K
Q105
KTA1298S
CC403
R420
104
4.7K
R425
4.7K
2K
CC405
104
Q109
9
Vdd
5,18,19 43
2 19
Varef
P47
AVDD 42
3 18
P46
41 4 17
CC103
P45
104
40 5 16
P44
39 6 15
P43
1 Vss
38
7 14
P42
11
50
P16
9
R201
4.7K
P37 64 16
1
R202
51
4.7K
63 2
P17 15
P36
R203
4.7K
62 3
14
P35
R204
20 4.7K
61 4 13
P60 P34
R205
4.7K
60 12
5
P33
R206
4.7K
59 6 11
P32
8
R207 9
4.7K
58
1 16
P31
R208
4.7K
57
2 15
P30
8
RESET
CC109 R209
104 4.7K
56
IC101 3 14
P54
8
TMP86FS49F
(Empty Flash P/NO
2
Xin
= EAN30784301)
3
Xout
47
P13
46
P12
45
P11
R301 R302
4.7K 4.7K
44
P10 27
P67
26
P66
25
P65
24
P64
23
P63
49
22
P15
P62
CC301 CC302
102 102
48
P14
4
TEST
13
R427
P03 R428
4.7K
12
100
14
P02(TX)
P04
15 R429
P05
11 100
P01(RX)
16
P06
CC406
102
21
P61
17
P07
OP1
R431
4.7K
52
P50
35
OP2
P77 R432
4.7K
53
P51
OP3
R433
4.7K
54
7
P52
P22
28-33,36-37,55
GND
R501-509
10K X 9
34
P76
9
P20
10
P00
6
P21
- 35 -
IC201
KID65783AF
TD62783AF
IC202
LD201
KID65003AF
(1a)
ULN2003AF
R210
240,1W
LD202
(1b)
R211
240,1W
LD203
(1c)
R212
240,1W
LD204
(1d)
R213
240,1W
LD205
(1e)
R214
240,1W
LD206
(1f)
R215
240,1W
IC203
LD207
(1f)
KID65003AF
ULN2003AF
R216
240,1W
L243,244
(CRUSH lbl.)
R217
180,1W
L255,256
R218 180,1W
"01" 'Å Ü
R219 120,1W
R303 R304 R305 R306
4.7K 4.7K 4.7K 4.7K
SW301
SW302
SW303
SW304
SW305
SW306
CC303 CC304 CC305
CC306
102 102 102 102
CON104
1
2
(Vdd)
R426
4.7K
3 (Tx)
4 (Rx)
R430
4.7K
5 (GND)
- 33 -
OPTION PIN $
'Å
01 02 03
PIN
OP1
- - -
(Tact/Touch)
OP2
- -
(3D/DIOS)
OP3
- -
(F/C)
PCB ASSEMBLY, DISPLAY
LD208 LD215 LD222 LD229 LD236
(2a) (3a) (4a) (5a) (Fä T()
LD209 LD216 LD223 LD230 LD237
(2b) (3b) (4b) (5b) (Fä -()
LD210 LD217 LD224 LD231 LD238
(2c) (3c) (4c) (5c) (Rä T()
LD211 LD218 LD225 LD232 LD239
(2d) (3d) (4d) (5d) (Rä -()
LD212 LD219 LD226 LD233 LD240
(2e) (3e) (4e) (5e) (-)
LD213
LD220 LD227 LD234 LD241
(2f) (3f) (4f) (5f) (3SEC fig.)
"01" 'Å Ü
LD214 LD221 LD228 LD235 LD242
(2f) (3f) (4f) (5f) (Month fig.)
L245,246 L247,248 L249,250 L251,252 L253,254
(CUBE lbl.) (I/P lbl.) (CRUSH fig.) (CUBE fig.)
L257-259 L260-262
L263-265 L266-268
(I/P fig.) (LIGHT fig) (BUZZ fig.) (LOCK fig.)
LD207 LD214 LD221 LD228 LD235
(1f) (2f) (3f) (4f) (5f)
LD242,243 LD244,245 LD246,247 LD248,249 L2D50,251 LD252,253
(CRUSH lbl.) (CUBE lbl.) (I/P fig.) (LIGHT fig) (BUZZ fig.) (LOCK fig.)
LD254 LD255 LD256 LD257
04 05 06
- - -
- -
- - -