NEC MultiSync 20WGX2 Series Service Manual page 137

2
MODEL LCD 20WGX SCHEMATIC DIAGRAM - SDRAM & Panel outputs (3/5)
DQ_B_[0..15]
3 DQ_B_[0..15]
DQ_A_[0..15]
3 DQ_A_[0..15]
+3_3_MEM
DQ_A_0
DQ_A_1
DQ_A_2
DQ_A_3
DQ_A_4
DQ_A_5
DQ_A_6
DQ_A_7
3 DQM
WEn
3 WEn
CASn
3 CASn
RASn
3 RASn
R382 2K CSn
BA
3 BA
A10
A0
A1
A2
A3
GND
A[0..10]
3 A[0..10]
3 MCLK
+3_3DVDD
+3_3_MEM
FB335
PBY201209T-300Y-S
C418 C419 C420 C421
47uF/25V 0.1uF 0.1uF 0.1uF
GND
FB336
PBY201209T-300Y-S
C427 C428 C429
C426
47uF/25V 0.1uF 0.1uF 0.1uF
+3_3DVDD
P307
POWER_SW
1
IRSI
2
+5V
3
LED_B
4
LED_A 5
6
GND 7
VIN1
8
ADC1_RETU RN
9
ADC_VREF
10
VIN2 11
ADC2_RETURN
12
GND
13
HEADER 13
C447 C448
0.1uF 0.1uF
GND
+3_3_MEM_ Q
I311
TSOP-50P
1 50
VDD VSS
2 49 DQ_A_15
DQ_B_0
DQ0 DQ15
3 48 DQ_A_14 DQ_B_1
DQ1 DQ14
4 47
VSSQ VSSQ
5 46 DQ_A_13 DQ_B_2
DQ2 DQ13
6 45 DQ_A_12
DQ_B_3
DQ3 DQ12
7 44
VDDQ VDDQ
8 43 DQ_A_11 DQ_B_4
DQ4 DQ11
9 42 DQ_A_10 DQ_B_5
DQ5 DQ10
10 41
VSSQ VSSQ +3_3_MEM
11 40 DQ_A_9 DQ_B_6
DQ6 DQ9
12 39 DQ_A_8 DQ_B_7
DQ7 DQ8
13 38
VDDQ VDDQ
14 37
LDQM NC
15 36 WEn
/WE UDQM
16 35 CASn
/CAS CLK
CKE RASn
17 34
/RAS CKE
18 33 CSn
/CS NC
A9 BA
19 32 R381
BA A9
20 31 A8 2K A10
A10 A8
A7 A0
21 30
A0 A7
22 29 A6 A1
A1 A6
23 28 A5 A2
A2 A5
24 27 A4 A3
A3 A4
25 26
VDD VSS
K4S161622H-UC55
1st.K4S161622H-UC55, 183MHz, Samsung
2nd.HY57V161610ETP-55,183MHz, Hynix
GND
3th.M12L16161A-5.5T, 183MHz, ESMT
C423 1uF/10V R386
3 Pr
GND
330pF
C424
1uF/10V R388
C436
3 Y
GND
C437 330pF
1uF/10V R387
C425
3 Pb
C422
GND
0.1uF C435 330pF
+3_3_MEM_Q
+5V FB318
PBY201209T-300Y-S
C430 C431 C432 C433 C434
R341
C351
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
12K
R342
2K2
GND
R343
3K3
2
GND
2 uP_IR_RS770
R389
IR5V R390
L_B
FB339
5V
L_A FCM160808C-301T01
5V 2
C444
VIN1
VIN1 3 10nF
VIN2
VIN2 3
GND
R462 NC
Q317
MMBT3906
1 3 Q316 3 1
MMBT3904
R394
R397 C446
C506 100
R396
820K R463 R464
0.1uF 820K 0.1uF
2K2 10K
R398
330 GND
R465
+3_3DVDD
10K
3
3 1
C507
Q308 2
0.1uF MMBT3904
R466
10K GND
GND
Q319 2
MMBT3906
R468 C508
10K 0.1uF
GND GND
Q309
2 R400 3K3
LED_AMBER 3
MMBT3904
GND
LV_E[0..9]
3 LV_E[0..9]
+3_3_MEM_Q
+3_3_MEM
I312
TSOP-50P
1 50
VDD VSS
2 49
DQ_B_15
DQ0 DQ15
3 48 DQ_B_14
DQ1 DQ14
4 47
VSSQ VSSQ
5 46 DQ_B_13
DQ2 DQ13
6 45
DQ_B_12
DQ3 DQ12
7 44
VDDQ VDDQ
8 43 DQ_B_11
DQ4 DQ11
9 42 DQ_B_10
DQ5 DQ10
LV_O[0..9]
10 41
VSSQ VSSQ 3 LV_O[0..9]
11 40 DQ_B_9
DQ6 DQ9
12 39 DQ_B_8
DQ7 DQ8
13 38
VDDQ VDDQ
14 37
LDQM NC
15 36
/WE UDQM
16 35
/CAS CLK
CKE
17 34
/RAS CKE
18 33
/CS NC
A9
19 32
BA A9
20 31 A8
A10 A8
A7
21 30
A0 A7
22 29 A6
A1 A6
23 28 A5
A2 A5
24 27 A4
A3 A4
25 26
VDD VSS
K4S161622H-UC55
GND
FB332
FB333
22F
P311
5 6
5 6
22F 3 4
3 4
1 2
1 2
A2006WV0-2x3P
GND
22F
I305
AO3401 FB319 VCC
PBY201209T-300Y-S
VCC
2 3
R514
47K
C349 C350
0.1uF 10nF
0.56uF
5V_T_EN
GND
5V_T_EN 3
2 uP_KEY_PWR
22 3 2
KEY_PWR 3
3 2
I329
IR_RS770 3
4K7 FDN335N
I330
FDN335N Q328
MMBT3906
3 1
5V
C445
R511
NC C520 R524 4K7
10K
0.1uF
KEY_SW 2
GND
R512
4K7
+5V
del C519,Add R524
+3_3DVDD
R460
3K3
R395 22
LED_BLUE 3
LED_BLUE_ADJ 3
R467 10K
5V_T_EN
10-3
+3_3DVDD
LV_E[0..9]
TXE0- LV_E0
TXE0+ LV_E1 Panel_VCC
TXE1- LV_E2
P305
TXE1+ LV_E3
TXE2- LV_E4
2 1
2 1
TXE2+ LV_E5 4 3
2 DIM_OUT 4 3
TXEC- LV_E6
6 5
6 5
TXEC+ LV_E7 8 7
8 7
TXE3- LV_E8 LV_E8 10 9 LV_E9
10 9
TXE3+ LV_E9 12 11
LV_E6 LV_E7
12 11
LV_E4 14 13 LV_E5
14 13
16 15
LV_E2 LV_E3
16 15
LV_E0 18 17 LV_E1
18 17
20 19
20 19
LV_O8 22 21 LV_O9
LV_O[0..9] 22 21
LV_O6 24 23 LV_O7
24 23
TXO0- LV_O0 LV_O4 26 25 LV_O5 GND
26 25
TXO0+
LV_O1 LV_O2 28 27 LV_O3
28 27
TXO1- LV_O2 LV_O0 30 29 LV_O1
30 29
TXO1+ LV_O3
TXO2- LV_O4
TXO2+ LV_O5 A2006WR0-2x15P
TXOC- LV_O6
TXOC+ LV_O7
TXO3- LV_O8
GND
TXO3+ LV_O9
+12V FB332
PBY170
2 +12V
I313
+5V FB333 AO3401 FB334
NC
PBY170
2 3
2,3,5 +5V
C414
0.1uF
R383
12V for LG panel C415
12K
0.56uF
NEC-C20MTL--6814200500P R384
GND
47K
5V for Samsung
R385
panel
4K7
2 DPWON
DPWON 3
MTS-C19MTS--6814902001P
GND
VCC
C528
1 8
OE1 VCC 0.1uF
2 7
3 SCL 1A OE2
3 6
3 SDA
2A 1B
4 5 GND
VSS 2B
Q329 I335 NC7WB3125
3 5160_IRQ
MMBT3904
3 5160_PWDN
2
3 Resetb
3 D4_11
C529
10uF/10V
3 5160_CLK
V_5160_D0
V_5160_D1
GND V_5160_D2
V_5160_D3
V_5160_D4
V_5160_D5
V_5160_D6
3 V_5160_D[0..7]
+3_3DVDD V_5160_D7
+3_3DVDD 2,3 3 Audio_In_Sel
VCC
FB337 I314
AO3413_AD FB338 VCC_3_3V
PBY170
PBY170
2 3
C440 C441
0.1uF 10nF
R391
C442
12K
0.56uF
R392
2K2
R393 GND
3K3
2 5V_T_EN
GND
5160_1_8V
FB340
PBY170
I315
2 5160_1_8V
+5V AO3414_AE FB342 VCC_1_8V
PBY170
3 2
R399 C450 C452
0.56uF
12K 0.1uF
R461
R401 2K2 GND
12K
2 Q310
GND
MMBT3904
R403
3K3 2
Q315
MMBT3904
GND
R471
10K
Q320
MMBT3904
2
R472
3K3
AI_ENABLE 2,3
P306
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0.5mm-AF7301-N2G1Z
GND
C453
10nF