Daewoo DWF-7588TE, Руководство по обслуживанию

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41 40
2) EXPLANATION OF CIRCUIT
• The MICOM terminal No. 33~40 amplifies the source current to produce the ‘H’ by use of the buffer
UDX-2981A. And the MICOM terminal No. 43~54 sufficiently amplifies the sink current by use of the
DRIVE I.C. ULN-2004A.
• The waveform between the part of
1
and the GND(part of the DUTY)
• The division rate of the DUTY is 1/9. And as part of the DUTY treats the black time between the square
waves, it prevents the phenomenon of faint lighting of L.E.D unnecessarily due to the phenomenon of
fold in delay time of the IC 8 between the input and output.
• The equivalent circuit of DRIVE IC & BUFFER IC
• If the light of the DISPLAY unit is does not appear, check the circuit using the oscilloscope.
0V
3.085mSEC
5.4V
INPUT
10.5K
Ω
7.2K
Ω
GND
OUTPUT
COMMON
INPUT
GND
1.5K
Ω
2983/84 Only
20K
Ω
VD
7.2K
Ω
3K
Ω
OUTPUT
ULN-2004A
UDN-2981A
• The element which has an effect on data of LOAD SENSOR
DISPLAY UNIT
1) CIRCUIT DIAGRAM
CONDITION SPECIFICATION
VOLTAGE 220V AC
CAPACITY OF CONDENSER 13.5µF
TENSION OF BELT 450gf
10
11
12
13
14
15
16
17
18
9
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
10
11
12
13
14
15
16
9
7
6
5
4
3
2
1
8
I.C8
ULN-2981
I.C7
ULN-2004
I.C6
ULN-2004
CH4 26 CH2
6V 6V
RA4(4X103J)
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
S8
S9
S10
S11
S12
S13
S14
S15
VddVpp
VP
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S25
S27
S28
S29
P00
P01
C36
104Z
B
A
6V
R62.43
R61.43
R60.43
R59.43
R58.43
R57.43
R56.43
R65.43
R64.43
R63.43
R67.43
R66.43
R69,43
R68,43
6V
13 CH1 CH3
17 13 2 3 4
12 5
10 7
RA3(4X103J)
5.4V
a1 a2 a3 a4 a5
b1 b2 b3 b4 b5
c1 c2 c3 c4 c5
d1 d2 d3 d4 d5
e1 e2 e3 e4 e5
f1 f2 f3 f4 f5
g1 g2 g3 g4 g5
DH RS M2
RN FE TM RM
WS IL1 M1
SK IL2 HR1 HR2
a6 b6 c6 d6
a7 b7 c7 d7
G1 B1 FZ
G2 B2 MM
G3 B3 SAK
G4 B4 DRY
G5 B5 SLK
G6 B6 QK
G7 B7 ST
G8 B8 NG
MI BL
CD1 CD2 LT LO
HTB ME
HT1 HT2 DR2 HI
e6 f6 g6
e7 f7 g7 DRY
I.C1
LC866020Y
WM 7
SK WS FE RN RS DH
HR1 M1 TM M2 RM
ef d1
g1
g1
d1
g2
g2
d2
g3
g3
d3
g4
g4
d4
g5
g5
d5
c1 b1 c2 b2 c3 b3 c4 b4 c5 b5
IL2 IL1
e3 f3 e4 f4 e5 f5
HT1
HT2
CD1
CD2
G1
G2
G3
G8
G7
G6
G4 G5
B7 B8 B6
B3
B1
B2
B5
B4
HTB
DR1, DR2
CDB
HI
ME
LO
MI
LT
FZ
MM
SAK
DRY
SLK
QK
ST
NG
BL
CUSTOM LED1 CUSTOM LED2
CD8
FRONT P.C.B FRONT P.C.B
SOAK
HOUR
WASH RINSE MILD SPIN HOT COLD
H.
M.
L.
S.
ES.
FUZZY
MEH.
SOAK.
DRY
SILK.
ECO
SUPER
NIGHT
ß LAN
MIN TIME MIN REM