Samsung SCR-3232, Service Manual

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8
No tray open/close
FPC is normally inserted in CN502? Retest after inserting FPC in CN502 properly
Start
N
Check SW301 pattern and soldering
v
FPC : Flexible Printed Circuit
Replace SW301
After FPC short check, no error, check SW soldering of deck
FPC of CN502 is normally inserted?
Retest after inserting FPC in CN502 normally
After FPC short check, no error, check SW soldering of deck
FPC of CN502 is normally inserted?
Retest after inserting FPC in CN502 normally
N
N
N
IC301 49pin is 0V at pressing SW301?
Y
IC301 35pin is 0V with tray in?
CN502 16pin
becomes 0V?
CN502 14pin
becomes 0V?
Check R528,R511,R512 soldering
N
N
N
N
IC301 36pin is 0V with tray open?
Check R528,R511,R512 soldering.
Replace IC501 Replace IC501
Y
Y
Y
Y
IC501 11pin change from 2.1V to +2V at pressing SW301?
N
N N
N
N
IC501 12pin changes from 2.1V to 2.5V at pressing SW301?
IC501 13pin changes from +6V to +4V, and 14pin
from +6V to +8V, at pressing SW301?
IC501 13pin and 14pin chage each from
6V, 6V, to 8V, 4V at pressing SW301?
Output Voltage of IC501 13Pin is impressed into
SLED Motor(-) and IC501 14Pin(+)?
Check pattern and soldering
between CN501 and IC301
Replace loading Motor.
Y
Y Y
Y Y
Y
14
OPEN tary repair
CLOSE operation repair