Samsung CH070EAV1 Service Manual page 94

■ 6-1-2 OUTDOOR MAIN PCB(UH090/105/140EAV)
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① CN46(4PIN/RED)
:THERMISTOR
#1: TXD_OUTDOOR
TEMP. Sensing
#3: TXD_DISCHARGE
TEMP. Sensing
#2,4: GND
⑤ CN30(10PIN/BLK)
:DO WNLOADING
⑨ CN90(4PIN/WHT): DI SPLAY
#1~4: RXD_Operating Signal
of MAIN PCB
6-2
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② CN44(4PIN/WHT)
:THERMISTOR
#1,2: Not used
#3: TXD_CO ND.
TEMP. Sensing
#4: GND
⑥ CN31(7PIN/WHT)
:INVERTER PBA
#1: TXD_MAI N, #2: RXD_MAIN
#3: GND, #4:VCC
#5: 12V, #6: INV_SMPS_RELAY
#7: Not used
⑩ CN91(10PIN/WHT): DISPLAY
#1~7: 7-SEGMENT
#8~10: TXD_KEY INPUT S IGNA L
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③ CN50(2PIN/RED)
:CO MMUNICATION
#1,2: TXD/RXD_COMM.
⑦ CN23(3PIN/YEL): 4WAY
#1: N phase
#2: Not used
#3: TXD_4WA Y Operating
Signal
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④ CN60(5PIN/BLU): EEV
#1~4: RXD_EEV
Operating Signal
#5: 12V
⑧ CN80(4PIN/WHT)
: POWER IN
#1,3: Not used
#5: L phase
#7: N phase
Samsung Electronics 6-2