Sharp AR-C150 Service Manual page 144

PCU MAIN PWB- Large capacity tray (LCC) communication trouble /
Main Sub
Title
code code Discrepancy of the model
Phenomena Display
U6 20
Detail
Section
Operation mode
Note
Case 1 Trouble
position/cause
Remedy
Note
Case 2 Trouble
position/cause
Remedy
Note
Case 3 Trouble
position/cause
Remedy
Note
Case 4 Trouble
position/cause
Remedy
Note
Lamp
Message
Communication test error in warm-up / Discrepancy of the model
Large capacity tray control PWB / PCU MAIN PWB
Warm-up / Initialize
Bad connection of the signal line between the PCU MAIN PWB and the large capacity tray (LCC)
control PWB
(Check) Check connection of the signal line between the PCU MAIN PWB and the large capacity tray
(LCC) control PWB.
(Repair) Repair or replace the cable and the connector between the PCU MAIN PWB and the large
capacity tray (LCC) control PWB. / Power Source-ON
(After-work)
PCU MAIN PWB trouble
(Check)
(Repair) Replace the PCU MAIN PWB. / Power Source-ON
(After-work) Re-enter setup values and adjustment values. (Install the EEPROM of the defective PCU
MAIN PWB to a new PCU MAIN PWB.)
Large capacity tray (LCC) control PWB trouble
(Check)
(Repair) Large capacity tray (LCC) control PWB replacement / Power Source-ON
(After-work)
Discrepancy of the model code (The AR-LC2, instead of the AR-LC2N, is erroneously installed to the
AR-C160/C270.).
(Check) Check that the AR-LC2N or the AR-LC2 is installed.
(Repair) Install the AR-LC2N or remodel the AR-LC2 into the AR-LC2N. (Replace the AR-LC2 ROM
with the AR-LC2N ROM, and replace the 1A fuse on the ADU control PWB with the 1.25A fuse.)
(After-work)
10 – 10A