Samsung RB215BSSB Service Manual page 68

Diagnostics
�
CN70 PIN;F LAMP WIRE PIN
�
CN71 PIN;R LAMP WIRE PIN
R DOOR SIGNAL MICOM #43
OPEN :0V,CLOSE :5V
F DOOR SIGNAL MICOM #42
OPEN :0V,CLOSE :5V
FLA MP#24
RLA MP#29
F LAMP IC70 #13
F LAMP IC70 #16
FLA MPK73
RLA MPK75
Start
YES
Is DOOR OPEN?
YES
Is DOOR SWITCH normal?
YES
Is Room LAMP(R,F)
normal?
Is the contact
state of connector CN70 & CN71
normal?
YES
Are the
voltages of MICOM #42 &
#43 for DOOR SWITCH
normal?
YES
Are MICOM #24 &#29
"HIGH"(5V)?
YES
Are IC70 #13 &#16
"LOW"?
YES
Are lamp controlling
relay (K73 &K75)
normal?
YES
Normal / Re-check
68
NO
DOOR OPEN
NO
Change DOOR SWITCH
NO
Change LAMP
NO
Re-check the ccutact of the
connector CN70 & CN71
NO
Check connector CN30,
soldering & short/Change PCB
NO
Change PCB
NO
Change PCB
NO
Change PCB