AR-C160 (serv.man50). Hanging Logo Symptom Prevention - Sharp Copying Equipment Technical Bulletin (repair manual)

ar-c160 (serv.man50) technical bulletin
Model
AR-C160 (serv.man50)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
57.67 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Copying Equipment / Hanging Logo Symptom Prevention
File
ar-c160-sm50.pdf
Date
Next: Sharp AR-C160 (serv.man51) Technical Bulletin

Read Sharp AR-C160 (serv.man50) Technical Bulletin online

 
 
 
GMA090702 
Sharp Electronics (UK) Ltd., Technical Services Group
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  Model: AR-C160 
 
Fault: 
Hanging Logo symptom may occur due to Electrical Noise causing PCU Main Pwb failure. 
 
Description: 
Electrical noise may be generated between the PCU & OPE communication line when the 
power is turned off/on. The noise is then synchronized with the 5V power supply, causing  
the excess voltage to damage the Driver IC. To improve the margin for noise reduction,  
two diodes have now been added. 
 
         Action: 
For machines up to and including March 2002 production, an additional Relay Pwb 
(containing a diode) should be added to the Connector Pwb. 
 
Part Code 
Description 
Price Rank 
CPWBN1557FC31 Relay 
PWB 
- 
LBNDJ0013FCZ1 Cable 
Tie 
AA 
 
 
Installation Procedure: 
 
 
1. 
Power off the copier (shutdown the print controller if installed) and remove the Rear 
Upper Cabinet to access the Connector PWB. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cont’d
HANGING LOGO SYMPTOM DUE TO PCU MAIN PWB 
FAILURE 
TECHNICAL BULLETIN 
Date:  
10 July 2002 
Model:  
AR-C160 
Ref.:  
021 
Colour:  
Yellow 
Page:  
1 of 3 
Connector Pwb 
 
 
 
GMA090702 
Sharp Electronics (UK) Ltd., Technical Services Group
 
 
 
 
2. 
Remove connector CN715 (34 pin) from the Connector PWB. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3. 
Insert the harness of the Relay PWB (CPWBN1557FC31) into CN715 of the 
Connector PWB. Carefully install/slide the Relay PWB under the Connector PWB. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4. 
Plug the 34 pin connector from the Main Harness into the Relay PWB socket. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cont’d
 
 
 
GMA090702 
Sharp Electronics (UK) Ltd., Technical Services Group
 
 
 
 
5. 
Hold the Main Unit Harness & the Relay PWB harness with a Binding/Cable tie 
(remove/cut any excess). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    6. 
Re-assemble 
the 
copier. 
 
 
From first production in April 2002, the diode is added in two places on the PCU Main 
PWB (The additional Relay Pwb is NOT required). 
 
 
Model 
PG/No. 
Current Parts 
New Parts 
Price 
Part Name 
 
 
Parts Code 
Part Code 
Rank 
 
AR-C160 [14]-89  CPWBN1504FC51  CPWBN1504FC53  BW 
PCU 
Main 
Pwb 
 
Page of 3
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