Samsung SR-65KTC Refrigerator User Manual


 
30
9-5. TEMP. CONTROL CIRCUIT.(ROTARY S/W)
A. FREEZER TEMP.
CAUTION
It is appeared the S/W cross spot of ROTARY
S/W circuit ①∼⑩
Temp. control is changed KNOB of contructed ROTARY S/W in the freezer and it is possible the temp. control 1 step
to 8 step.
Temp. control SETTING become partial pressure for R 501 resistance and ROTARY S/W resistance.
(Row composition resistance of resistance charge to R 908 and ROTARY S/W direction)
And partial pressure is delivered to MICOM through R 503 resistance and recognited temp. control and it become
SETTING to temp. contol.
Voltage or resistance charge of MAIN PCB MICOM input for SUB PCB Asss ROTARY S/W cross spot direction is
same the below.
(When Measure the resistance charge, connector of MAIN PCB CN 30 is separated and measure the connector
terminal.)
To upside, when measure the resistance charge isnt appeared the resistance in the case SUB PCB ASSY
connection is disconnection or crack situation of PCB board.
Section
Voltage
(R504)
Resistance
(CN30~)
1 STEP
(9PIN)
2.77
±0.15V
6.54㏀±
1%
2 STEP
(8PIN)
2.94
±0.15V
5.66㏀±
1%
3 STEP
(7PIN)
3.12
±0.15V
4.76㏀±
1%
4 STEP
(6 PIN)
3.33
±0.15V
3.84㏀±
1%
5 STEP
(5 PIN)
3.57
±0.15V
2.91㏀±
1%
6 STEP
(4 PIN)
3.84
±0.15V
1.96㏀±
1%
7 STEP
(3PIN)
4.16
±0.15V
0.99㏀±
1%
8 STEP
(2 PIN)
4.54
±0.15V
0
WHEN OPEN
THE OPEN SPOT
0.1~ 0.7V
100㏀±1%