MUTOH ValueJet - Page 345

ValueJet 1304 Service manual
9-31 AP-74109 Rev 1.1
2 Abnormal LCD
operation (no
displays/garbled
characters)
1. Check panel cable for
proper connection at
operation panel unit
assembly side and
main board assembly
side.
• Is the panel cable
inserted obliquely?
• Is the connector
securely locked?
Reconnect following
connectors.
• Main board: J5
• Operation panel unit
assembly
"4.3.3
Replacing
Main Board
Assembly"
p.4-29
2. Panel cable may be
damaged.
Replace panel cable. "4.2.2
Removing
Operation
Panel Unit"
p.4-9
3. Is operation panel
unit assembly LCD
damaged?
Replace panel board
assembly.
"4.2.2
Removing
Operation
Panel Unit"
p.4-9
4. Main board assembly
may be damaged.
Replace main board
assembly.
"4.3.3
Replacing
Main Board
Assembly"
p.4-29
5. Power board
assembly may be
damaged.
Replace power board
assembly.
"4.3.6
Replacing
Power Board
Assembly"
p.4-35
Table 9-7 Symptoms, Check Items and Actions for Initial Operation Problems (Continued)
No. Symptom Check item Action Reference