Sanyo PLV-55WHD1 Service Manual page 167

1/8GZ000
A
3.3V
R5291
X
R5292
X
DEVF_SW
R5296
Q5292
X
X
K8C
J10XE300G
GND
1 31
L5211
OPTION 1 2 ROTATE 2
L26B4940G
NT8C3 RA_-
GND 3 4 TX0- 3 4 1 4 3.3V_LVR
NT8C4
TX0+ 5 GND RA_+
6 5 6 RB_-
B NT8C10 2 3
TX1- 7 8 TX1+ NT8C9
7 8
RB_+ 1 4
NT8C15
GND 9 10 TX2- L5212
9 10 NT8C16
L26B4940G
TX2+ 11 12 GND 11 12 2 3
NT8C22
RC_-
TXCLK- 13 NT8C21
14 TXCLK+ 13 14 1 4
L5213
NT8C27
GND 15 16 TX3- L26B4940G
15 16 NT8C28 RC_+
2 3
TX3+ 17 18 GND
17 18
RCLK_-
TXOB- 19 20 TXOB+ 19 20 1 4
L5214
L26B4940G
GND 21 22 GND 21 22 RCLK_+
2 3
I2C_READY 23 24 GND
23 24 RD_-
1 4
I2C_SCL 25 26 GND L5215
25 26 L26B4940G
I2C_SDA 27 28 GND 27 28 2 3
RD_+
GND
GND 29 30 29 30 NT8CG1
32 NT8CG2 3.3V_LVR
32 GND
C
R5228
1/10GJ10KC
D
DEVS
DEHS
DEDE
DECLK
DRE[0]
DRE[1]
E
DRE[2]
DRE[3]
DRE[4]
DRE[5]
DRE[6]
DRE[7]
F
DGE[0]
DGE[1]
DGE[2]
DGE[3]
DGE[4]
DGE[5]
DGE[6]
G
DGE[7]
DBE[0]
DBE[1]
DBE[2]
DBE[3]
DBE[4]
DBE[5]
DBE[6]
DBE[7]
H
I
IC9491
CM_DG
PQ025EZ02ZPH
6
D9491
1SS355
1 2 3 4 5
3.3V
C9491
6.3KK
2.2GQ C9493
16EM1001X C9494
DEVF_SW
6.3KK4.7GQ
R9496
R9492
X
X
R9493
C9492
J X
6.3KK4.7GQ
R9494
X
K
K9401A
X
GND
CS 1
SCLK
SWD
SRD
GND 5
GND
CM_DG
L
1 2 3
M8PA-05
SCH_M8PA
3.3VD P_FAIL RB5201
L5291 R5294 R1A44704G
1/10GJ10KC SIG_B[0]
P_FAIL DBE[0]
Q5291
X SIG_B[1]
L5201 3.3V_LVR DBE[1]
F34DF222G LVDS RECEIVER SIG_B[2]
DBE[2]
SIG_B[3]
C5201 DBE[3]
16EM101V
IC5201 SIG_B[4]
DBE[4]
R5206
THC63LVDF84B 1/8GZ000 SIG_B[5]
DBE[5]
SIG_B[6]
DBE[6]
SIG_B[7]
VCC DBE[7]
1 RC3 56
RB5202
2 RD6 RC2 55
R1A44704G
3 RC4 RC1 54
R5204
1/8GZ000 4 GND RC0 53
GND C5202
5 RC5 52
KK0.1GQ
C5206
6 RC6 RB6 51
16EM101V
RB5203
7 RD0 RD5 50
R1A44704G
L5203
SIG_G[0]
8 LVDSGND RD4 49 DGE[0]
1/8GZ000
SIG_G[1]
VCC
9 RA- 48 DGE[1]
R5211 SIG_G[2]
10 RB5 47 DGE[2]
RA+ C5203
1/10GF100C
KK0.1GQ SIG_G[3]
11 RB- RB4 46 DGE[3]
R5212
SIG_G[4]
12 RB+ RB3 45 DGE[4]
1/10GF100C
GND SIG_G[5]
13 LVDSVCC 44 DGE[5]
C5207
SIG_G[6]
KK0.1GQ RB2 DGE[6]
14 LVDSGND 43
R5213 SIG_G[7]
15 RC- RD3 42 DGE[7]
1/10GF100C
RB5204
16 RC+ RD2 41
R1A44704G
R5214
VCC RB5206
17 RCLK- 40
1/10GF100C R1A44704G
SIG_R[0]
RB1 DRE[0]
18 RCLK+ 39
R5215 SIG_R[1]
19 RD- RB0 38 DRE[1]
1/10GF100C
C5204
SIG_R[2]
20 RD+ RA6 37 DRE[2]
1/8GZ000 KK0.1GQ
R5203
L5204 SIG_R[3]
21 LVDSGND GND 36 DRE[3]
1/8GZ000
SIG_R[4]
RA5
22 PLLGND 35 DRE[4]
C5209
SIG_R[5]
KK0.1GQ 23 RD1 34 DRE[5]
PLLVCC
C5208
16EM101V SIG_R[6]
24 PLLGND RA4 33 DRE[6]
SIG_R[7]
25 /PDWN RA3 32 DRE[7]
R5221
VCC RB5207
26 CLKOUT 31
R1A44704G
1/10GZ0C
RA2
27 RA0 30
28 GND RA1 29
R5202
1/8GZ000
LVRGND R5207
R5201
1/8GZ000
1/8GZ000
R5223 1/10GJ47C
SIG_HS
DEHS
R5224 1/10GJ47C NTDEHS
SIG_VS
DEVS
SIG_DE R5226 1/10GJ47C NTDEVS
DEDE
1/10GZ0C
SIG_CLK R5222 NTDEDE
DECLK
R5227 X
NTDECLK
LVDS_PD
R5229
X
TP_OACT
X
R9424 1/10GJ100C
R9423 1/10GJ100C
L9401
F34DF222G
3.3VD
C9401
16EM1001X 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53
C9406
89 NC
KK0.1GQ
90 VDDS
91 GND
92 GND
93 ID7
94 ID8
RB9413
95 ID9
R1A40R04G
96 ID10
97 ID11
98 ID12
RB9414
99 ID13
R1A40R04G
C9418
100 VDD2
KK0.1GQ
101 ID14
102 ID15
103 ID16
RB9416
104 ID17
R1A40R04G
105 GND
106 ID18
107 ID19
108 ID20
RB9417 IC9401
109 ID21
R1A40R04G
110 ID22
J-L003
111 ID23
112 ID24
113 GND
COLOR MANAGER
114 ID25
RB9418
115 ID26
R1A41034G
116 ID27
117 ID28
RB9419
118 ID29
R1A41034G
119 ID30
120 ID31
C9407
121 VDDS
KK0.1GQ
122 ID32
RB9421
123 ID33
R1A41034G
124 ID34
125 ID35
126 ID36
C9408
KK0.1GQ
127 GND
128 VDDS
RB9422
129 ID37
R1A41034G
130 ID38
131 ID39
P_FAIL 132 NC
133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176
D9492
1SS355
P_FAIL
C9411
16EM1001X
L9411
F34DF222G
L9416
1/10GZ0.0
L9417
1/10GZ0.0
L9418
1/10GZ0.0
L9419
1/10GZ0.0
CM_DG
R9433
1/10GJ10KC
RB9436
X
R9438
X
RB9437
X
RB9438
X
TEST_CS_JPC
TEST_SCLK_JPC RB9439
X
TEST_SWD_JPC
TEST_SRD_JPC
4 5 6
IC1816
BA33BC0FP
S5V 1
2
C1816
KK0.1GQ
IC1811
TC74LCX541FT
3L_EN
R1811
1/10GJ1KC
VCC
1
SCLK_CPU 2
SDATA_CPU
3
ST_CPU
4
OSD_ST 5
R1821
6
1/10GZ0C
R1822
1/10GZ0C 7
R1823
1/10GZ0C 8
R1824
9
1/10GZ0C
10
GND
BUFFER
D1801
X
P_FAIL IC1801
L1801 M62392FP
L26B2770G
5V
C1801
16EM101V
C1802
CS0
KK0.1GQ 1 R
R1801 1/10GJ100C
IICSCL_DAC SCL CS1
2
R1802 1/10GJ100C
IICSDA_DAC 3 SDA CS2
FAN_CONT1 4 Ao7 VDD
FAN_CONT2 5 Ao8 VCC
FAN_CONT1-4
FAN_CONT3 Ao9 Ao6
6
FAN_CONT4 7 Ao10 Ao5
R861 X
DEV_SW 8 Ao11 Ao4
R862 X
PANEL_SW 9 Ao12 Ao3
VrefL Ao2
10
5V_DAC 11 VrefU1 Ao1
TP_OHSB L1803
X 1/8GZ000 12 GND VrefU2
TP_OVSB
C1803
X 6.3KM47PCH
DAC
DHS
DVS
R9407 1/10GJ100C
DB[1]
R9406 1/10GJ100C
DB[0]
R9404 1/10GJ100C
DG[1]
IC801 SELECT PINS
52 51 50 49 48 47 46 45 PANEL_OPTION(LCD)
(IC801 3 PIN)
44 DG[0]
R9403 "LOW"
65INCH
OD31 43 1/10GJ100C
(R801:X R802:0)
OD30 42
"HIGH"
OD29 41 55INCH
(R801:4.7k R802:X)
OD28 40
TP_OCK
GND 39 X
OD27
38 R9402
OD26 37 C9413 1/10GJ
100C
KK0.1GQ
OD25 36 DR[1]
R9422 1/10GJ47C
R9421
VDD2 35
L3CU121PG
OCK 34 DCLK
C9403
L9421
VDDS 33
KK0.1GQ X
OD24 32 DR[0]
1/10GJ100C
R9401
OD23 31 DB[9] 1/10GJ100C
30
OD22 DB[8] IC401 S5V_CPU
RB9407
OD21 29 DB[7]
R1A41014G
OD20 28 DB[6]
5V
OD19 27
OD18 26 DB[5] R815
1/10GJ10KC
25 DB[4]
GND
RB9406
OD17 24 DB[3] S_IN
R1A41014G
OD16 23 DB[2]
OD15 22 DG[9]
RB9404
DG[8]
OD14 21
R1A41014G
OD13 20 DG[7]
OD12 19 DG[6]
OD11 18
GND 17 DG[5]
RB9403
OD10 16 DG[4]
R1A41014G
OD9 15 DG[3]
OD8 14 DG[2]
C9412
OD7 13 KK0.1GQ
VDD2 DR[9]
12
RB9402
OD6 11 DR[8]
R1A41014G
OD5 10 DR[7]
OD4 9 DR[6]
DR[5]
OD3 8
RB9401
OD2 7 DR[4]
R1A41014G
OD1 6 DR[3]
OD0 5 DR[2]
GND 4
C9402
GND 3
KK0.1GQ
VDDS 2
NC 1
TP_WAITB
X
L9451
F34DF222G
C9451
16EM1001X
3.3VD
C9453 C9454
X X
X9451
V10B4471G CM_DG
1 X1/ICLK 8
X2
2 VDD 7
S1
3 GND 6
S0
4 REF 5
R9451 CLK
1/10GJ47C
R9452
X
IC9451
ICS512MLFT
7 8 9 10
SDA_TV
K8P
SCL_TV
X
R4791
X
5V_PIC D4791
X
L4791
X
5V
IC4761 L4793 X
X
C4791
X 1 MCLR/VPP RB7 28
C4792 RB6
2 RA0/AN0 27
X
3 RA1/AN1 RB5 26
4 RA2/AN2 RB4 25
5 RA3/AN3 RB3 24
R4772
6 RA4/T0CKI RB2 23
X
P_FAIL_CPU 7 RA5/AN4 RB1 22
8 VSS RB0 21
C4761
X R4778
9 OSC1 VDD 20
X
S3.3V 10 OSC2 VSS 19
X4761
R4779 X
11 RC0 RC7 18 LAMP_RX
X
3 R4777 X
12 RC1 RC6 17 LAMP_TX
C1818 C4762 R4776 X
KK0.1GQ X 13 RC2 RC5 16 LAMP_SW
R4762
X
SCL_TV 14 RC3 RC4 15
R4775
C1817
X
16EM1001X
C4775
X
C4774 X
L1811
SDA_TV
L26B2770G R4774
X
20 C1811
KK0.1GQ
19
R1826
1/10GZ0C
18 SCLK
R1827
1/10GZ0C
SDATA
17 R1828
1/10GZ0C
16 ST
R1829
1/10GZ0C
15 ST_OSD
14
13
12
11
IC1861 R1868
1/10GJ12KC
S5V_CPU BA2903FVM R1869
1/10GJ5.6KC
R1863
R1861
1/10GJ8.2KC
1/10GJ10KC
C1863 R1866
10KK1GQ 1/10GJ10KC
5V_DAC
P_FAIL_CPU
P_FAIL_P_CPU
P_FAIL_CPU 1 8
R1809 R1862 - +
P_FAIL_P_CPU
24 1/10GZ0C 1/10GJ10C 2 7
+ - R1867 1/10GJ10C
R1807 P_FAIL
23 3 6
X R1871 R1873 1/10GJ10C
22 R1804 1/10GJ10C 4 5 P_FAIL_PNL
P_FAIL
X
21 C1871
C1806 KK0.1GQ P_FAIL_PNL
10KK1GQ
C1804 KK0.1GQ C1872
20
R1872 X 10KK1GQ
R869 X
FAN_SW
19
R868 X
18 SELECT_GAM
COMPARATOR
R867 X
17 LS_RST
R866 1/10GZ0C
16 PWDN_SH
R864 X
SH_RST
15
R863 X
14 GAMMA_RST
13
L801 L802 S5V_CPU
F34DF222G
L26B2770G
S5V
C801
16EM1001X
R859 1/10GJ100C
SH_RST
R818
R858 1/10GJ100C R801 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80
LS_RST 1/10GJ
OPTION1
R852 1/10GJ100C 10KC
GAMMA_RST 1
R819
TEST_CS 2
1/10GJ100C
R802
3
OPTION2 R804
R/C_CPU 4 P73/INT3/T0IN/T0HCP
C817
1/10GJ100C
5
RES#
KK0.1GQ C811 R811
CJ18GGQ 6 XT1/AN10
X
R816 X811
1 VOUT 5 7 XT2/AN11 P27/INT5/T1IN/T0LCP/T0HCP
V10B7700G R812
N.C.
2 C812
VDD C803 8 VSS1 P26/INT5/T1IN/T0LCP/T0HCP
CJ18GGQ 1/10GJ560KC KK0.1GQ
3 4
GND 9 CF1 P25/INT5/T1IN/T0LCP/T0HCP
R813
N.C. C818 X813
10 CF2 P24/INT5/T1IN/T0LCP/T0HCP/INT7/T0HCP1
KK0.1GQ V11B1650G R814 X
IC816
11 VDD1 P23/INT4/T1IN/T0LCP/T0HCP
BU4345G 1/10GJ1KC
KEY 12 P80/AN0 P22/INT4/T1IN/T0LCP/T0HCP
R806 1/10GJ100C
R805 AFT
RESET 13 P71/AN1 IC801 P21/INT4/T1IN/T0LCP/T0HCP
X R807 1/10GJ100C
14 P82/AN2 P20/INT4/T1IN/T0LCP/T0HCP/INT6/T0LCP1
R808 1/10GJ100C
TIME_BASE 15 P83/AN3
P_FAIL_CPU R809 1/10GJ100C LC87F5KP6AU-TQFP-M8PA
P_FAIL_CPU 16 P84/AN4
R821 1/10GJ100C
P_FAIL_P_CPU
P_FAIL_P_CPU 17 P85/AN5
R822 1/10GJ100C TV CPU
FAN_ERR 18
1/10GJ100C P86/AN6
R823
FAN_ERR
19 P87/AN7
R826 1/10GJ100C
SDATA_CPU 20 P10/SO0
21 P11/SI0/SB0
R828 1/10GJ100C
S5V_CPU SCLK_CPU 22
P12/SCK0
R832 R834 23 P13/SO1
1/10GJ5.6KC 1/10GJ5.6KC R831 1/10GJ10C
SDA_TV 24
R833 1/10GJ10C
SCL_TV 25
C831 C833
CJ22GGQ 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
CJ22GGQ
C837
CJ22GGQ
IC836
C839
CJ22GGQ
24LC08BT/SNG
C836
KK0.1GQ
A0 VCC
1 8
2 A1 WP 7
3 A2 SCL 6
4 VSS SDA 5
R836
1/10GJ100C
R838
EEPROM
1/10GJ100C
5V
R856
1/10GJ4.7KC
R857
R849
1/10GJ100C 1/10GJ100C
Q856
AH
R1881
1/10GJ10C
SDA_TV
IICSDA_DAC
IICSDA0_EXL
ST
R1891
SCS_EXL
1/10GJ10C
SCLK
SCLK_GAM
SCLK_EXL
11 12 13
R8821
1/10GJ2.2C K8T
J10ES086G
C8821
R8822 GND
16EM101V
1/10GJ2.2C
5V 1 5V
NTK8T-2
L8821
GND
F34DF222G C8822
SDA
KK0.1GQ
R8823 NTK8T-4
GND
1/10GJ100C
SCL
NTK8T-6
R8824
GND
1/10GJ100C
5V
IC8811 IC8801 KEY
L8811
NTK8T-8
L8801
LM76CHMX-5 1/10GZ0.0 LM76CHMX-5 NTK8TG 8 GND
1/10GZ0.0
C8813 R8801
R8811 C8803
KK0.1GQ GND
1/10GJ100C 1/10GJ100C KK0.1GQ
1 8 1 8
SDA +VS SDA +VS
R8812 R8802
1/10GJ100C 1/10GJ100C
2 SCL A0 7 2 SCL A0 7
C8811
CJ33CGQ 3 6 3 6
O.S. A1 O.S. A1
R8817
C8812 1/10GZ0C R8825
CJ33CGQ INT OUT INT OUT 1/10GJ100C
4 5 4 5
GND GND
R8816
X
IC1831
KEY
S5V_CPU
MC74VHC14DT
R1832 K8L
C1831
1/10GJ10C
VCC KK0.1GQ 5V J10EX042G
R/C 1 14
L1845
R1831
R1839 F34DG506G NTK8L-1 1
2 13 R1838
1/10GJ10KC 1/10GJ1KC
X
12 R1841
LAMP_TX 3 R/C_CPU L1841 NTK8LG
R1833 RX_LAMP 1/10GJ10C F34DG506G NTK8L-3
4 11
X
TX_LAMP NTK8L-4
R1834 5 10
1/10GZ0C
R1842 4
6 9 R1835
1/10GJ10C C1842
R1836 X
X 7 8 X L1842
GND F34DG506G K8S
D1842
UDZS6.2BG J10EX032G
L1843
R1837
R1843 F34DG506G
1/10GZ0C
1/10GJ10C NTK8S-1
LAMP_RX 1
IC1851
R1845
R1851 TC7WZ08FU
X
NTK8S-3
1/10GJ1KC 3
R1844
S5V_CPU
1/10GJ10C NTK8SG
C1851 L1844
R1852 X F34DG506G
KK0.1GQ
D1844 D1843
P_FAIL_CPU 1 VCC 8
UDZS6.2BG UDZS6.2BG
C1844 C1843
FAN_ERR FAN_ERR 2 7
R1858 X X
R1853 1/10GZ0C
1/10GJ10C 3 6
4 5
GND
R1856
R1857 1/10GJ1KC
R1854 1/10GZ0C
K8K
1/10GJ10C
LAMP_SW
LAMP_SW J10ES096G
GND
R4701 R4702
1 GND
1/10GJ2.2C 1/10GJ2.2C
NTK8K-2
S5V S5V
NTK8K-3
L4701 F34DG506G
R/C R/C
L4702 F34DG506G NTK8K-4
P_KEY 1 POER_KEY
L4703 F34DG506G 2 NTK8K-5
POWER_LED POWER_LED
L4704 F34DG506G 2 NTK8K-6
READY_LED READY_LED
1
L4706 2 NTK8K-7
F34DG506G
WARNING_LED WARNING_LED
L4707 F34DG506G 2 NTK8K-8
REPLACE_LED 1 REPLACE_LED
2
9 GND
NTK8KG
GND
K801B
J10ES056G
GND
1 GND
R4726 X
RESET
R4727 X
DB1
R4728 X
DB2
R4729 X
5 DB3
NTK81BG GND
K801A
GND J10ES066G
R4721 1/10GJ100C
1 ENA
R4722 1/10GJ100C
SDA
R4723 1/10GJ100C
CLK
R4724 1/10GJ100C
RESET
S5V_CPU VDD
NTK81AG 6 GND
GND
R4731 1/10GZ0C
RESET_CPU
R4732 1/10GZ0C
CLK_CPU
R4733 1/10GZ0C
SDA_CPU
R4734 1/10GZ0C
ENA/DATA_CPU
5V
IC891 L891
L26B2770G
TC7SET08F
C892
C891
KK0.1GQ
16EM1001X
79 78 77 76
UART1RX
5 1
R887 1/10GJ100C
R891
75 UART2RX 2
1/10GJ100C
R886 1/10GJ100C
P34/UTX2 74 UART2TX 4 3
R892 1/10GJ100C
L893
P33/URX1 73
L26B2770G
R893 1/10GJ100C
3.3VD
P32/UTX1 72 R885 1 5
1/10GJ100C C894
P31/PWM5 71 PANEL_SW PANEL_SW 2
R884 16EM1001X
1/10GJ100C
P30/PWM4 70 DEV_SW 3 4 UART1TX
R883
1/10GJ100C DEV_SW R895
69 LAMP_RX
R882 1/10GJ100C
IC893
1/10GJ100C
68 R881 LAMP_TX
1/10GJ100C LAMP_SW TC7SH08FU
LAMP_SW
67 R889
1/10GJ100C
66 RST_OSD
R803
P_KEY
1/10GJ100C
65 P_KEY
64
63 S5V
62 R875
1/10GJ470C
R879 1/10GJ100C FAN_SW
P07/T7O 61 FAN_SW
MO_MUTE
P06/T6O 60 R876
1/10GJ100C
Q877
P05/CKO 59
AH
R845 R877
P04 58 AMP_MUTE
1/10GJ1KC
1/10GJ10KC R865
P03 57 1/10GJ10KC
R873
1/10GJ100C
P02 56 AV_SW2
R872
1/10GJ100C
P01 55 AV_SW1
R871
1/10GJ100C
P00 54 PFC_SW
VSS2 53
C806
KK0.1GQ
VDD2 52
51
47 48 49 50
R874
1/10GJ10KC
R878
K801D
1/10GJ10KC
R829 X
1/10GJ10KC GND
TEST_SO
1 SDO
TEST_CLK
2 SCLK
TEST_SI
3 SDI
TEST_CS
4 ST
5 GND
S5V_CPU 6 5V
7 GND
RESET_TV GND
S5V_CPU
IC1881
K801C
C1881
TC74LVX4053FT J10EX142G
KK0.1GQ
GND
VCC R1886 1/10GJ10C
H
1 16 SDA_TV 1 SDATA0_IN
R1887 1/10GJ10C
2 L 15 R1882
SCL_TV SCLK0_IN
1/10GJ10C
3 H 14 NTSDAI1
IICSCL_DAC SDATA1_IN
R1884 NTSCKI1
4 H 13 SCL_TV
SCLK1_IN
R1883 X
L L NTSDAO1
5 12 IICSCL0_EXL SDATA1_OUT
X
6 11 NTKSCKO1
INH SCLK1_OUT
R1888
7 10 1/10GJ10C
VEE IICSDA0_EXL SDATA0_OUT
R1889
1/10GJ10C
8 9 IICSCL0_EXL
GND R1897 SCLK0_OUT
R1892 1/10GJ10C
SCLK_EXL
1/10GJ10C R1898 SCLK
1/10GJ10C
SDATA_EXL SDATA
R1899
C1891
1/10GJ10C
KK0.1GQ SCS_EXL ST
VCC
1 H 16
GND
R1895 X
2 L 15 ST_GAM EXL_SW
EXL_SW
H
3 14 SDATA_GAM 14 GND
R1896
4 H 13 NTK81CG
SDATA
X
R1893 GND
5 L L 12
SDATA_EXL
R1894 1/10GJ10C
X 6 11
INH
R1885
7 10
VEE 1/10GJ10KC
8 9
GND EXL_SW
IC1891
TC74LVX4053FT
BUS SW (Not used)
Schematic Diagrams
Main Board P.2/3
14 15 16
A
B
C
D
E
F
G
H
I
J
K
L
A7