Daewoo DG-K301, Service Manual

Page: 23 / 48

CIRCUIT DIAGRAM
22
3. CONTROL BOARD SCHEMATIC DIAGRAM
5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
SENSOR REMOTE
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1.
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GVG-679(STANDBY) Control Borad Sechmatic
A4
1
2
Wednesday, June 06, 2007
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Grid2 Grid3 Grid4 VC
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Grid5 Grid6 Grid7 Seg2
VCC
Grid1 Seg3
DATA CLOC
K
CS Seg8
Seg1
Seg6 Seg7 key2
IRIN
Grid7 Seg
5
Seg
1
Seg5
Seg
6
Grid2 Grid1 Grid4 Seg
3
Grid5 Grid3 Seg
2
Grid6
Seg4
Seg
4
POWER_KEY
key2 ks7
Seg9
ks7
CLOC
K
DATA CS IR
VC
C
GND
VC
C
VC
C
vcc5v
VCC5
v
SW
4
C3 101P JP
8 12
R3 10K
R1 100
CN
2
Connect 2.00X2
1 2
+
100uF/16V
EC
2
C4 101
P
SW
5
R6 51K
SW
2
R7 10K
CN
1
Connect 2.00X8
1 2 3 4 5 6
C1
104
P
R2 10
K
SW
5
JP7
12
R5 10K
LED1 8mm LED Screen/MR-6659
1 2 3 4 5 6 7 8 9 10 11 12 13
Grid1 Grid2 Grid3 Grid4 Grid5 Grid6 Grid7
Seg
1
Seg
2
Seg
3
Seg
4
Seg
5
Seg
6
SW
3
U1
HD6928B
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 22 23 24 25 26 27 28
OSC DI/0 CLK STB Key1 Key2 VDD Seg1/KS1 Seg2/Ks2 Seg3/Ks3 Seg4/Ks4 Seg5/Ks5 Seg6/Ks6 Seg7/Ks7
Seg8/Ks8 Seg9/Ks9
Seg10/Ks10
Seg12/Grid7 Seg13/Grid6 Seg14/Grid5
VD
D
Gn
d
Grid4 Grid3
Gnd
Grid2 Grid1
Gn
d
+
100uF/16V EC1
JP5
12
JP6
12
C2 101P
IR1
1
2
3
SW
5
R4 10K