Samsung RS2534WW Service Manual page 56

Diagnostics
11-10) If the ice chute cover solenoid doesn't work :
Preliminary check
1) Check if the solenoid is operated unconditionally for 0.3 sec, independent of the Open/Close condition of cover ice-route, after
a lapse of about 5 seconds from the outset of power ON. (Before installation, the cancellation of cover ice-route Open is
enabled.)
2) Check if the connector of upper hinge section is hook-up correctly.
The S/N control PCB assembly and
wire system have no trouble.
Press Ice lever and keep it open.
YES
Is the cover closed of
S/N after a lapse of about
7∼10 seconds?
YES
All the control system of cover ice-
route has no trouble.
Check the ICE S/W and troubleshoot
the wire connection syste
YES
operated after 5 minutes from the outset
PCB maintaining High for 0.3 sec at the first
NO
Exchange the main PCB assembly.
NO
Replace TR Q701 check SSR71 after, and
then exchange failed components or replace
the PCB assembly.
With the ice S/W ON
and ICE S/W on, ice-movement motor in F room?
NO
m.
Start
Is the S/N(solenoid) for 0.3 sec
of power ON?
NO
Is MICOM No. 27 on
power ON?
NO
Check the stop lever and support
time-delay.
YES
Subject to the ice
S/W ON, do CN31 No. 2 and MICOM No. 45
get impressed 0V?
- Main PCB and the sensing section of
ice-S/W are normal.
- Check the operation of SSR71 and
Q701.
56
YES
MICOM control port is normal.
NO
Does C-E(between C and E)
of TR Q701 turn ON for 0.3 sec?
TR701 and SSR71 are normal
YES
YES