Sharp AR-C150, Service Manual

Page: 144 / 214

Main
code
Sub
code
Title
PCU MAIN PWB- Large capacity tray (LCC) communication trouble /
Discrepancy of the model
U6 20
Phenomena Display Lamp
Message
Detail Communication test error in warm-up / Discrepancy of the model
Section Large capacity tray control PWB / PCU MAIN PWB
Operation mode Warm-up / Initialize
Note
Case 1 Trouble
position/cause Bad connection of the signal line between the PCU MAIN PWB and the large capacity tray (LCC)
control PWB
Remedy (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)
Note
Case 2 Trouble
position/cause PCU MAIN PWB trouble
Remedy (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.)
Note
Case 3 Trouble
position/cause Large capacity tray (LCC) control PWB trouble
Remedy (Check)
(Repair) Large capacity tray (LCC) control PWB replacement / Power Source-ON
(After-work)
Note
Case 4 Trouble
position/cause Discrepancy of the model code (The AR-LC2, instead of the AR-LC2N, is erroneously installed to the
AR-C160/C270.).
Remedy (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)
Note
10 – 10A