Fip1.26 Ros Assy - TallyGenicom 9045N Service Manual

FIP1.26 ROS ASSY

Step
Possible causes:
ROS ASSY (PL8.1.1)
HARNESS ASSY ROS (PL8.1.2)
INTERLOCK S/W 5V (PL8.1.12)
HARNESS ASSY LVPS (PL12.1.1)
HVPS/MCU (PL12.1.19)
LVPS (PL12.1.5)
Checking the power to Laser Diode of ROS ASSY
Remove COVER TOP ASSY (PL1.1.7). (RRP1.4)
Disconnect P/J140 from ROS ASSY.
1
Install EP CARTRIDGE.
Close COVER OPEN (PL1.1.2).
Is the voltage across J140-8(+) and J140-7(-), 5 VDC?
Checking INTERLOCK S/W 5V
Remove INTERLOCK S/W 5V.
2 Is it continuous between P/J142-1 and P/J142-3, when
INTERLOCK S/W 5V is pushed, and is not when
released?
Checking SWITCH I/L ASSY 5V
Remove SWITCH I/L ASSY 5V.
3 Is it continuous between P/J144-1 and P/J144-3, when
SWITCH I/L ASSY 5 V is pushed, and is not when
released?
Checking HARNESS ASSY LVPS
Disconnect P/J141 of HARNESS ASSY LVPS.
4 Is it conductive between P/J141-1 and P/J141-3 when
INTERLOCK S/W 5V and SWITCH I/L ASSY 5V are
pushed simultaneously, and is not when released?
Checking HARNESS ASSY ROS
Disconnect P/J14 from HVPS/MCU.
Disconnect P/J140 from ROS ASSY.
5
Is it continuous between P/J14-1 and P/J140-8, when
INTERLOCK S/W 5V and SWITCH I/L ASSY 5V are
pushed simultaneously, and is not when released?
Checking power to HVPS/MCU
Remove SHIELD PLATE LVPS. (RRP12.1)
6 Install EP CARTRIDGE.
Disconnect P/J41 from LVPS.
Is the voltage across P/J41-4 and P/J41-3, 5 VDC?
Checking HVPS/MCU for continuity
7 Disconnect P/J14 and P/J11 from HVPS/MCU.
Is there continuity between P/J14-1 and P/J11-13?
Checking HARNESS ASSY LVPS for continuity
8 Disconnect P/J11 from HVPS/MCU.
Is there continuity between P/J11-13 and P/J41-4?
Check
1 – 43
Chapter 1 Troubleshooting
Yes
Go to step 8. Go to step 2.
Replace INTER-
Go to step 3. LOCK S/W 5V.
(RRP8.5)
Replace SWITCH I/
Go to step 4. L ASSY 5V.
(RRP1.6)
Replace HAR-
Go to step 5.
NESS ASSY LVPS.
Replace HAR-
Go to step 6.
NESS ASSY ROS.
Replace LVPS.
Go to step 7.
(RRP12.3).
Replace HVPS/
Go to step 8.
MCU. (RRP12.10).
Replace HAR-
Go to step 9.
NESS ASSY LVPS.
No