33 34
LOAD DRIVE UNIT
(cw wash, ccw wash, drain, hot water, cold water, bubble, pump)
1. CIRCUIT DIAGRAM AND EXPLANATION
• Controlling load of button input in MICOM terminal, it is selected to ‘L’ or ‘H’. It is selected to ‘H’ in
running load case and in ‘L’ case, load driving is finished, In clockwise rotation of washing motor, as
MICOM No. 31 is changed 0V to 5.4V, TR Q1(KTN2222S) is turn on. And then, the TRIAC1(SM
12JZ47) is turn on, the source of electric power is supplyed to washing motor for clockwise rotation.The
TRIAC as switching element, force to ‘ON’ or ‘OFF’ by use of the Q1 (KTN2222S) in the rest loads,
when the MICOM terminal voltage change 0V to 5.4v, each TRIAC DRIVE TR is active, and then TRIAC
switches the source of electric power to loads.
• The purpose of using the MICOM terminal No. 6 Q2(KTA 1664) is that the Q2 prevents the instant
supply of electric power supply to loads, in case MICOM’s action is wrong by means of pushing initial
power switch.
WH/BK
FAN
PK
BUBBLE
RD/BL
COLD WATER
YW
HOT WATER
YW/BK
DRAIN
BL
CCW WASH
VT
CW WASH
BL/WH
PUMP
BL/YW
AC COMMON
MINUTE EXPLANATION DIAGRAM FOR EACH PARTS
MICOM IC (64 DIP)
1 64
2 63
3 62
4 61
5 60
6 59
7 58
8 57
9 56
10 55
11 54
12 53
13 52
14 51
15 50
16 49
17 48
18 47
19 46
21 45
21 44
22 43
23 42
24 41
25 40
26 39
27 38
28 37
29 36
30 35
31 34
32 33
P10/S00
P11/SI0/SB0
P12/SCK0
P13/S01
P14/SI1/SB1
P15/SKC1
P16/BUZ
P17/PWM
TEST1
RES
XT1
XT2
VSS
CF1
CF2
VDD
P80/AN0
P81/AN1
P82/AN2
P83/AN3
P7/INT0
P71/INT1
P72/INT2/T0IN
P73/INT3/T0IN
S0/T0
S1/T1
S2/T2
S3/T3
S4/T4
S5/T5
S6/T6
S7/T7
P07
P06
P05
P04
P03
P02
P01
P00
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
VP
VDDVPP
S15/T15
S14/T14
S13/T13
S12/T12
S11/T11
S10/T10
S9/S9
S8/T8
LC866020Y-5644
SANYO
ROM : 16384X8 bit
RAM : 384X8 bit
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