Hitachi DS75MU01, Service Manual

Page: 32 / 120

32
IR_IN1
+3.3V_Normal
+3.3V_Standby +3.3V_Standby
Temperature Detect
TO SCALER
I2C address: A2H and A3H
Keypad/ Exterior IR
Interrupt output
open-drain;
active low
RTC
IR+Key
KEY_ADC1
LEDR
LEDG
+3.3V_Standby
IR_IN1
KEY_ADC2
M_SDA (4,8,11,12,17,20,21)
M_SCL (4,8,11,12,17,20,21)
Place on top layer
C4153
100NF 16V
R4220
N
C
/4.
7K 1/
16W
+ C4141
0.22F 5.5V
Q408
MMBT3906
C4142
22pF 50V
C4143
2.2UF
C
4148
1000pF
50V
R4238
0R05 1/16W
D402
BAS316
A
1
K
2
U420
PCF-8563T
OSCI
1
OSCO
2
INT
3
VSS
4
SDA
5
SCL
6
CLKOUT
7
VDD
8
C
4149
1000pF
50V
Z
D
414
RL
Z5
.6
B
1
2
C
4146
10PF
5
0V
R4231
0R05 1/16W
FB403 120R 3A
1 2
R4226 33R 1/16W 5%
R4227
3.9K 1%
C4145
NC/22pF 50V
ZD416
RLZ5.6B
1
2
R4219
0R05 1/10W
R4235
4K7 1/16W 5%
Z
D
415
RL
Z5
.6
B
1
2
C
4147
10PF
5
0V
R4225 33R 1/16W 5%
R4237
4K7 1/16W 5%
R4228
3.9K 1%
R4229
NC
R4233
150R
Q407
MMBT3906
R4236
4K7 1/16W 5%
R4230
0R05 1/16W
FB404 120R 3A
1 2
ZD417
RLZ5.6B
1 2
R4223 0R05 1/16W
R4232
-5% 1/10W
C4151
NC
C4150
100nF 16V
X401
DMX-26S
1
2 3
4
R4221
N
C
/4.
7K 1/
16W
ZD418
RLZ5.6B
1 2
C4152
100NF 16V
R4234
NC/4K7 1/16W 5%
R4222
10K
R4239
NC
U419
BD1020HFVTR
N.C.
1
PG
2
VOUT
3
VDD
4
GND
5
C4144
NC/22pF 50V
R4224
10K
+5V_RTC
+5V_RTC
+5V_Standby +5V_RTC
+5V_RTC
+3.3V_Standby
+3.3V_Standby
+3.3V_Standby
RTC_INT (8)
LED_R (8)
IR_DATA (14)
TEMP (8)
LED_G (8)
_CH-_PWR (8)
V+_V-_INPUT_MUTE (8)
KEY_ADC1
KEY_ADC2
TEMP
+3.3V_Normal
IR_DATA
CN408
CONN
1
2
3
4
5
6
7
8
9
10
11
M_SDA
M_SCL RTC_INT
LEDG LEDR