1-13. Communication circuit
The following communication circuit is used for exchanging information between the main MICOM of the Main PCB and the
dedicated MICOM of the LED (LCD) Display PCB.
A bi-directional lead wire assembly between the two boards is required for the display to function properly.
Poor communication occurs if a continuous information exchange fails to last more than 2 minutes between main MICOM of
main PCB and LCD (LED) dedicated MICOM for LCD (LED) control of display PCB.
1) GR-L267, G267, P277
EXPLANATION FOR MICOM CIRCUIT
- 45 -
PWB
ASSEMBLY
DISPLAY
EXPRESS/JET FRZ
DISPENSER
REFRIGERATOR FILTER RESET
LOCK
FREEZER
ICEBEAM
COOLING
OFF
CUBE
WATER
ROOM TEMP
3 SECS
CRUSH
5
4
3
2
1
JET FRZ
EXPRESS FRZ
FRZ TEMP
REF TEMP
UNLOCK
LOCK
FILTER STATUS
FILTER RESET
HOLD 3 SEC.
6
5
4
3
2
1
F
F
F
Main MICOM
LCD(LED) dedicated MICOM
DC 12V
GND
Transmission (error status)
Reception (notch status)
Main PCB
L/Wire FD/H(4-wires)
Display PCB
Содержание GR-B277
Страница 41: ...2 GR B277 EXPLANATION FOR MICOM CIRCUIT 41 a b c d ...
Страница 50: ...2 GR B277 EXPLANATION FOR MICOM CIRCUIT 50 ...
Страница 51: ...2 2 Parts list 1 GR L267 G267 P277 EXPLANATION FOR MICOM CIRCUIT 51 ...
Страница 52: ...EXPLANATION FOR MICOM CIRCUIT 52 ...
Страница 53: ...2 GR B277 EXPLANATION FOR MICOM CIRCUIT 53 ...
Страница 54: ...EXPLANATION FOR MICOM CIRCUIT 54 ...
Страница 55: ...2 3 DISPLAY ASSEMBLY part diagram 1 GR L267 G267 P277 LCD Display EXPLANATION FOR MICOM CIRCUIT 55 ...
Страница 56: ...2 GR L267 G267 P277 LED Display EXPLANATION FOR MICOM CIRCUIT 56 ...
Страница 57: ...3 GR B277 EXPLANATION FOR MICOM CIRCUIT 57 ...
Страница 58: ...2 4 DISPLAY circuit diagram 1 GR L267 G267 P277 LCD Display EXPLANATION FOR MICOM CIRCUIT 58 ...
Страница 59: ...2 GR L267 G267 P277 LED Display EXPLANATION FOR MICOM CIRCUIT 59 PWB ASSEMBLY DISPLAY ...
Страница 60: ...3 GR B277 EXPLANATION FOR MICOM CIRCUIT 60 ...
Страница 63: ...2 GR B277 EXPLANATION FOR MICOM CIRCUIT 63 ...
Страница 64: ...EXPLANATION FOR MICOM CIRCUIT 64 ...
Страница 69: ...CIRCUIT 69 3854JD1110A ...
Страница 70: ...CIRCUIT 70 3854JD1110A ...
Страница 71: ...CIRCUIT 71 3854JD1110A ...
Страница 119: ...6 BLOCK DIAGRAM TV RADIO 119 ...
Страница 134: ...P No 3828JD8793E FEB 2005 Printed in Korea ...