4
4-13
4: Mechanical Troubleshooting
Mechanical Troubleshooting
4-11 Display Does Not Show Any Image
When selecting sheet size or fold
pattern, the machine does not sound
activating.
When no sound can be heard
Check the followings:
1.
The flat cable (shown above) is fully con-
nected.
- The display panel is assembled with the LCD
P.C.B. QPW677. Therefore, to replace the display
panel, replace the QPW677.
If the problem is still not resolved, replace the
control P.C.B. QPM192.
The volume for panel brightness is
turned to Min.
The brightness of the display panel is adjusted
by the volume VR1 on QPM192 (shown
above.)
When replacing the QPM192 and the VR1 is
turned to Min, the display can not show any
image.
4-11: Display Does Not Show Any Image
[Additional Information]
Rotary Switch DSW1 Setting
0
Not Used
1
Japanese
/mm
2
English
/inch
3
English
/mm
Display
QPW-677
QPM-192
LCD P.C.B
Control P.C.B
Flat Cable
CON9
CON10
CON2
CON1
CON8
CON4
CON5
VR1
BZ
CON6
CON12
CON11
RO
M
CON7
CON3
CON1
QPW-422
VR2
GND
TP5
5V
TP4
IC2
CPU
C10
C11
CON2 CON3
CON1
QPW-422
CON2 CON3
1
1
1
1
1
1
11
1
1
1
1
QPM-192
CON5
VR1
BZ
CON12
CON11
1
1
1
DSW1
Summary of Contents for PF-P330
Page 2: ......
Page 9: ...1 1 1 1 Mechanism Mechanism 1 Mechanism ...
Page 21: ...2 2 1 2 Service Mode Service Mode 2 Service Mode ...
Page 24: ...2 4 2 Service Mode This page is intentionally left blank ...
Page 36: ...3 12 3 Adjusting and Checking Procedures This page is intentionally left blank ...
Page 37: ...4 4 1 4 Mechanical Troubleshooting Mechanical Troubleshooting 4 Mechanical Troubleshooting ...
Page 58: ...5 8 5 Folding Quality Troubleshooting This page is intentionally left blank ...
Page 59: ...6 6 1 6 Electrical Circuit Electrical Circuit 6 Electrical Circuit ...
Page 70: ...6 12 6 Electrical Circuit This page is intentionally left blank ...