Read LG 32LD660 / 32LD665H (CHASSIS:LA05C) Service Manual online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
100
R1419
100
R1401
220pF
C1413
510
R1479
2.7K
R1463
0
R1408
PTC_RX_5V
I 2 3 ; 5 : X 7
USB_CTL1
1 0 : P 1 3
USB_DM1
1 0 : P 1 5
USB DOWN STREAM
3AU04S-305-ZC-(LG)
JK1401
1
2
3
4
5
TP1403
A1.8_ETHUB
UART3_TX
C 2 5 ; 5 : N 1 5 ; 5 : Y 2 6 ;
5:AB6
+5V_USB_1
AE21
47K
R1402
2.7K
R1423
+3.5V_ST
+5V_DEVICE
1K
R1431
LAN_LINK0
13:O21
LAN_LINK1
13:AM24
+5V_ST
0 . 1 u F
C1416
BCM_TX
9 : A J 2 5
PTC_TX_BCM
9 : A J 2 2
0
R1468
BCM_RX
9 : A J 2 5
10K
R1470
EPHY_RXIP0
1 3 : S 1 5
100
R1424
EPHY_RXIP1
13:U15
5.6V
D1403
0 . 1 u F
C1406
+5V_USB_1
AK27
PTC_TX
5:X7
MAX3232CDR
IC1403
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
TP1401
0 . 1 u F
C1408
UART3_RX
I 2 3 ; 5 : N 1 5 ; 5 : Y 2 6 ;
5:AB7
10uF
10V
10V
C1400
RS232_RX
L15
+3.3V
30V
D1402
22K
R1406
LAN_ACT1
13:AM24
EPHY_TXON1
1 3 : T 1 5
10K
R1469
0 . 1 u F
C1415
10K
R1436
5.6V
D1400
10K
R1400
100
R1411
EPHY_TXOP0
1 3 : S 1 5
+3.5V_ST
TP1402
100
R1414
RS232_RX
T16
USB_DP1
1 0 : P 1 4
RESET_high
5:O27
+3.3V
A1.8_ETHUB
AP2191SG-13
IC1404
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
22K
R1457
100
R1405
TC4053BFN
IC1402
3
1Z
2
0Y
4
Z-COM
1
1Y
6
INH
5
0Z
7
VEE
8
VSS
9
C
10
B
11
A
12
0X
13
1X
14
X-COM
15
Y-COM
16
VDD
UART_SWB
5:AA21
0 . 3 3 u F
C1405
100
R1413
1K
R1462
SPG09-DB-009
JK1402
1
2
3
4
5
6
7
8
9
10
Update_SW
5 : L 1 9
LAN_ACT0
13:O21
PTC_RX_5V
P 2 2 ; 5 : X 7
100uF
16V
16V
C1402
USB_OCD1 1 0 : P 1 3
0
R1467
100
R1455
0
R1425
0 . 3 3 u F
C1414
100
R1442
10K
R1432
/RESET_BY_CPU
9:AN22
510
R1450
100
R1418
EPHY_RXIN1
13:U15
30V
D1405
+3.3V
+3.5V_ST
TC4053BFN
IC1401
3
1Z
2
0Y
4
Z-COM
1
1Y
6
INH
5
0Z
7
VEE
8
VSS
9
C
10
B
11
A
12
0X
13
1X
14
X-COM
15
Y-COM
16
VDD
47K
R1404
UART3_RX
L 1 4 ; 5 : N 1 5 ; 5 : Y 2 6 ;
5:AB7
510
R1480
RS232_TX
T16
EPHY_TXON0
1 3 : T 1 5
PTC_RX_BCM_3.3V
9 : A J 2 2
100
R1403
100
R1426
0
R1435
47
R1433
UART_SWA
5:AA21
10K
R1428
+3.5V_ST
0 . 0 4 7 u F
C1411
/Uptdate_By_CPU
9 : A J 2 0
+3.5V_ST
100
R1430
220pF
C1412
RS232_TX
L16
+5V_ST
0 . 1 u F
16V
C1420
30V
D1409
OPT
100
R1427
510
R1449
0 . 3 3 u F
C1404
UART3_TX
C 1 6 ; 5 : N 1 5 ; 5 : Y 2 6 ;
5:AB6
EPHY_TXOP1
1 3 : T 1 5
+3.5V_ST
EPHY_RXIN0
1 3 : S 1 5
BLM18PG121SN1D
L1405
1K
R1438
0 . 1 u F
C1401
MLB-201209-0120P-N2
L1403
BLM18PG121SN1D
L1406
2SC3052
Q1403
E
B
C
2SC3052
Q1406
E
B
C
2SC3052
Q1400
E
B
C
2SC3052
Q1405
E
B
C
43-10013AD11-1
JK1400
LAN IC
1
2
3
4
5
6
7
8
D1
D2
D3
D4
9
43-10013AD11-1
JK1406
LAN IC
1
2
3
4
5
6
7
8
D1
D2
D3
D4
9
4 9 . 9
1%
1%
R1477
4 9 . 9
1%
1%
R1478
4 9 . 9
1%
1%
R1475
0 . 1 u F
C1418
0 . 1 u F
C1417
4 9 . 9
1%
1%
R1476
4 9 . 9
1%
1%
R1448
4 9 . 9
1%
1%
R1445
4 9 . 9
1%
1%
R1444
0 . 1 u F
C1410
0 . 1 u F
C1409
4 9 . 9
1%
1%
R1447
30V
D1416
30V
D1417
30V
D1407
30V
D1411
30V
D1419
30V
D1414
30V
D1412
30V
D1410
30V
D1415
30V
D1406
30V
D1418
30V
D1413
XRJV-01V-D12-180
LAN
JK1400-*1
1
2
3
4
5
6
7
8
D1
D2
D3
D4
9
XRJV-01V-D12-180
LAN
JK1406-*1
1
2
3
4
5
6
7
8
D1
D2
D3
D4
9
14
RS232/USB/ETH
18
32/37/42LD660H
2 0 1 0 . 1 2 . 1 3
1
T r a c e i m p e d a n c e : 1 0 0 o h m d i f f e r e n c t i a l i m p e d a n c e t o G N D p l a n e
USB JACK
A d j a c e n t T X / R X d i f f e r e n t i a l p a i r s s h o u l d b e s e p a r a t e d b y m o r e t h a n
1 5 m i l s t o e a c h o t h e r
S e r i a l P o r t
SELECT PTC OAD OR NOT
0
X
0
O b j e c t i v e
PTC DEBUG
SW_B
PTC USB
5 m i l s t r a c e w i d t h w i t h 7 m i l s a i r g a p o n P / N p a i r .
X
BCM DEBUG
COM/MON
RxD
BCM Tolerance
1
1
SIMULATION
1
LAN 1
SW_A
X
SELECT PTC OR BCM DEBUG
LAN 2
X
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