Hitachi DS75MU01, Service Manual

Page: 31 / 120

31
R4197 NC/0R05 1/16W
R
4192
100K 1/
16
W
5%
R4202 NC
R4186 0R05 1/16W
U418
SN74LVC1G3157DCKR
B2
1
GND
2
B1
3
A
4
VCC
5
S
6
C4138
100N 16V
R4205
10K
U417
SN74CB3Q3253PWR
1OE
1
S1
2
1B4
3
1B3
4
1B2
5
1B1
6
1A
7
GND
8
2A
9
2B1
10
2B2
11
2B3
12
2B4
13
S0
14
2OE
15
Vcc
16
U416 ST3232CTR
C1+
1
V+
2
C1-
3
C2+
4
C2-
5
V-
6
T2out
7
R2in
8
R2out
9
T2in
10
T1in
11
R1out
12
R1in
13
T1out
14
GND
15
VCC
16
C4131
10UF 16V
C4135
100N 16V
CN404
CONN
1
7
6
2
3
4
5
R
4193
100K 1
/16W
5%
R4181 10K 1/10W 5%
R
4194
N
C
/100K 1/
16W
5%
ZD403
GLZ
22B
1
2
R
4185
0R
05 O
H
M
R
4188
0R
05 O
H
M
ZD402
GLZ
22B
1
2
R4203
10K
C4130
100N 16V
U414
74CBTLV1G125GW
OE
1
A
2
GN
D
3
B
4
Vc
c
5
U415
SN74CB3Q3253PWR
1OE
1
S1
2
1B4
3
1B3
4
1B2
5
1B1
6
1A
7
GND
8
2A
9
2B1
10
2B2
11
2B3
12
2B4
13
S0
14
2OE
15
Vcc
16
Q405
MMBT3904
C4133
100NF 16V
Q404
MMBT3904
R4210
30Kohm 1/16W +/-5%
ZD407
GLZ
22B
1
2
R4182
0R05 OHM
R4209 75 OHM 1/4W
ZD412
T
V
M
1G5
R
5M
100R
1
2
R4211 75 OHM 1/4W
R4206
10K 1/10W 5%
R4196
10K 1/10W 5%
R4207
10K 1/10W 5%
R4195 NC
R4200 5K1 1/16W 5%
R4199 0R05 OHM
R4214
NC
R4201 NC/0R05 1/16W
R4198 0R05 OHM
R4183 0R05 OHM
R4190 0R05 OHM
FB402
300R 0.7A
R4212 33R 1/16W 5%
R4216
10
K 1/
16W
5
%
R4184 0R05 1/16W
CN407
CONN
1
7
6
2
3
4
5
R4218 0R05 1/16W
ZD409
GLZ
22B
1
2
C4140
100NF 16V
ZD404
GLZ
22B
1
2
TP411
C4134
100NF 16V
ZD408
GLZ
22B
1
2
C4132
100NF 16V
R4189
10K 1/10W 5%
R4204 5K1 1/16W 5%
ZD406
G
LZ
22B
1
2
R4
1
8
7
0R
05 O
H
M
R4217
NC/4.7K
C4137 100N 16V
C4136
100N 16V
R4191
NC/100K 1/16W 5%
R4177
0R05 1/10W
Q403
MMBT3904
ZD410
T
V
M
1G5R
5M
100R
1
2
R4180
0R05 OHM
ZD405
G
LZ
22B
1
2
R4215
47K 1/16W 5%
R4213 33R 1/16W 5%
ZD411
T
V
M
1G5R
5M
100R
1
2
C4139
100NF 16V
R4208
10K 1/10W 5%
+5V_232
+5V_232
+5V_Standby
+5V_232
+5V_Standby
+3.3V_Standby
+3.3V_Standby
+3.3V_Standby
+3.3V_Standby
IRIN (13)
+3.3V_Standby
+3.3V_Standby
S0 (7)
S1 (7)
IR_DATA (15)
OPS_TX (12)
S2 (7)
S3 (7)
TX_M8 (8)
RX_M8 (8)
OPS_RX (12)
CN406
PHONE JACK 5P
1
3
5
4
2
RXD_IN
S3
---><---|
>
TXD_OUT
Plug in-->pin4/5 open
N232_RX
Hi
---><---|>
RS232_IN_RX
SW=0-->internal IR
Lo
MHL_RX
S2
SW=1-->external IR
RS232---INPUT
RXD_IN_2
--->
<---|>
RS232_OUT_RX
RS232---OUTPUT
---><-
--|>
P232_RX
B2
TXD_OUT_2
RXD_IN
B1
Ex_IR_IN
S0
TXD_OUT
Ex_IR_SW
S1
TXD_OUT_2
Ex_IR_OUT
RC6_2
RC6_1
OPS_RX
RXD_IN_2
OPS_TX
In
Plug out-->pin4/5 short
R
41
78
N
C
/4.
7K
1/
16W
PIN4 籔 Scaler TX 硈钡
PIN3 籔 Scaler RX 硈钡
S1
OPS RS232
Rx
Tx
Tx
1
Rx
1
0
S2 S3
Master Mode
Tx
Tx
MCU
MCU
Rx
Rx
Rx
Feedback Mode 0
Tx
Rx
Rx
Tx
1
Tx
0
RS232 In
MCU
0
Rx
0 0
0
Tx
Tx
Rx
Tx
Tx
MCU
RS232 Out
Tx
0
RS232 In
RS232 Out
Rx
0
1
Stand Alone
Mode
0
Rx
RS232 Out
OPS Stand
Alone
Mode
Feedback Mode
OPS Stand
Alone
Mode
0
Stand Alone
Mode
Master Mode
Rx
RS232 Out
Tx
Tx
Rx
Rx
RS232 In
1
Listen Mode
1
S0
1
RS232 Out
Rx
MCU
0
Tx
Listen Mode
Rx
1
Tx
RS232 In
RS232 In
+3.3V_Standby
R
41
79
N
C
/4.
7K
1/
16W
CRD41 (8)
20140930 change from 3V3SB to +5V_STB
S2
Ex_IR_SW
S=1-->B2
S=0-->B1
CN405
PHONE JACK 5P
1
3
5
4
2
R4424 0R05 1/10W