Key Components Of Electronic Circuit - DAEWOO ELECTRONICS DWC-084R Service Manual

8. KEY COMPONENTS OF ELECTRONIC CIRCUIT

(1) IC3 (MICOM)
TMP47C443N
Fan Speed(Hi)
Remocon Signal
Display In, Key Out
Display In, Key Out
Display In, Key Out
Key In
Key In
Option(˚F/ ˚C)
(2) U2 (TD62783AP)
(Top View)
1
XOUT
2
XIN
3
RESET
4
R70
5
R71 (PULSE)
6
R72/VAREF
7
R40 (AIN0)
8
R41 (AIN1)
9
R42 (AIN2)
10
11
R50 (AIN4)
12
R51 (AIN5)
13
R52 (AIN6)
14
VSS
28 VDD
27 HOLD (KE0)
26 R92 (SCK)
25 R91 (SO)
24 R90 (SI)
23 R83 (T1)
22 R82 (INT1/ZIN)
21 R81 (T2)
20 R80 (INT2)
19 R63
18 R62
17 R61
16
15 R53 (AIN7)
SCHEMATIC DIAGRAM
INPUT
10kΩ
TD62783 : n=1
n
TD62784 : n=4
26
TEST
Display Out
Display Out
Display Out
Display Out
Comp
Buzzer
Display Out
Display Out
Display Out
Fan Speed(Low)
Room Sensor
Vcc
OUTPUT
5kΩ
GND