Hitachi UX Twin Nozzle Service Manual page 134

●Connector numbers and Identifying method of Harness.
No. Name
1 Fan harness
2
Multi-power supply harness,
3
secondary side-16pins
4
Head cable(14 wires）
5
6
Charge voltage harness
7
8
Deflection voltage harness
9
10
APH cable
11
High voltage power supply
12
13 harness（10pins）
High voltage power supply
14
15 harness（2pins）
Multi-power supply harness,
16
primary side-16pins
17
Cases of wrong connection
(Refer to the table of
"Connector numbers and
Identifying method of
Harness")
No.2 ⇔ No.3
No.4 ⇔ No.5
No.6 ⇔ No.7
No.8 ⇔ No.9
No.10 ⇔ No.11
※Note that the wrong connection is NOT allowed by the length of the harness for Connector No.12-No.17
Position of connector of No.1 to No.17
7
9
12
4
10
Harness mark band No. Board
none EZJ133
none EZJ133
[2][8] EZJ133
none EZJ125
[2] EZJ133
[3] EZJ125
[3][3] EZJ134
[5] EZJ125
[5][5] EZJ134
[2] EZJ125
[2][2] EZJ133
EZJ125
none
EZJ133
EZJ125
none
EZJ134
EZJ139
none
EZJ139
Symptom caused by wrong connection
Screen display is NOT lit up after main power is turned ON.
Warning of "Ambient temperature Sensor Fault" occurs after main power is
turned ON.
Print positions of nozzle1 and 2 are inverted against the setting of print format.
Shape of ink drop does NOT change even though the value of Auto-phase gain in
"Auto-phase gain adjustment" is changed for the object nozzle.
Printing becomes disordered. APH wave form does NOT change even though the
value of Auto-phase gain is changed.
Charge or deflection-related faults (NO charge, charging too low or too high,
leaking deflection voltage) occurs even though the gutter and charging deflecting
electrode of object nozzle are NOT dirty by ink.
15
3-58
Connector No. Identifying method
Misinstallation cannot be made by
CN29
the number of pins
CN2
CN28
CN7
CN38
CN3
CN3
CN5
CN1
CN2
CN36
CN6
CN37
By the length of harness
CN4
CN2
CN1
By the length of harness
CN3
8
View inside after EZJ134 board fixing metal is removed.
2
3
1
13
5
11
Mark band
14
6
17
16