KV-N1058X, KV-N1028X, KV-N1058Y, KV-N1028Y (serv.man2) — Panasonic Other Service Manuals Service Manual Supplement (repair manual). Page 6

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6
KV-N1058X/KV-N1028X/KV-N1058-Y/KV-N1028Y
Scanned image data 
have black lines, white 
lines, or darker image 
than the original or 
brighter image than the 
original.
1. Shading data stored in CONTROL 
Board is not proper to perform an 
image process.
1. Perform the "Shading" in Sec. 
10.3.9.
 to over-write new 
data.
2. The dust exists on the Scanning Glass 
((F) or (B)) or its surrounding 
(Reference area or others).
1. Wipe off the dust with soft and dry cloth.
2. Perform the "Focus" test in Sec. 
10.3.8.
 to monitor the 
CIS’s output level.
3. CIS (F) Unit does not work properly.
*KV-N1028Y/X : CN2
1. Execute "Focus" test in Sec. 
10.3.8.
 to check the 
waveform of CIS output.
2. Execute "CIS LED" test in Sec. 
10.3.8.
 to check the 
lighting of each RGB.
3. Check the following connections and soldering condition 
on each connector.
CIS (F) Unit to CN1*(CONTROL Board)
4. Check the power supply for LED.
(1) CN1*-4th pin, F1: 7.0 V
(2) L3, L6, L7, Q7, Q8, Q9
5. Replace faulty parts or boards.
4. CIS (B) Unit does not work Properly.
*KV-N1028Y/X: CN4
1. Execute "Focus" test in Sec. 
10.3.8.
 to check the 
waveform of CIS output.
2. Execute "CIS LED" test in Sec. 
10.3.8.
 to check the 
lighting of each RGB.
3. Check the following connections and soldering condition 
on each connector.
CIS (B) Unit to CN3*(CONTROL Board)
4. Check the power supply for LED.
(1) CN3*-4th pin, F1: 7.0 V
(2) L8, L9, L10, Q9, Q10, Q12
5. Replace faulty parts or boards. 
5. Background Plate switching is not 
working properly.
1. Execute "Focus" test in Sec.
10.3.8.
 to check the 
peaklevel when Background Color is White and Black.
When scanning short 
documents, the ejecting 
sound is larger than the 
normal sound.
If the length of a document is less than 
about 148 mm, feeding speed control will 
be activated for exiting documents; this is 
normal behavior.
This is normal operation.
Noise
1. Problem with conveyor motor, bearing, 
roller or gear.
1. Perform the "Conveyor Motor" test in Sec. 
10.3.8.
 to 
check the sound source.
2. Replace the faulty parts.
Symptom
Possible Cause
Recommended action
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KV-N1058X/KV-N1028X/KV-N1058Y/KV-N1028Y
1.3.
Exploded View and Replacement Parts List
1.3.1.
15.6. Lower Chassis 2 For KV-N1058X-U,N1058X-ML,N1028Y-CN,N1058Y-CN
Only for KV-N10xxY-CN
617
G
602
605
605
633
A
623
617
630
630
608
C
C
C
C
F
C
C
C
C
F
A
C
C
604
606
601
613
612
626
628
624
618
615
614
616
620
C
611
629
607
625
640
638
639
617 622
621
617
627
620
603
G
610
E
G
C
C
C
Lower Chassis 2
619
631
631
632
(548)
From:Lower Chassis 1
(214)
From:Top Cover 
          Assembly
8
KV-N1058X/KV-N1028X/KV-N1058-Y/KV-N1028Y
1.3.2.
For KV-N1028X-M,N1058X-M
617
G
602
605
633
A
623
617
630
608
C
C
C
F
F
C
C
C
C
F
A
C
C
604
606
601
613
612
626
628
624
618
615
614
616
620
C
A
A
C
636
629
637
607
625
617 622
621
617
627
620
603
G
610
E
G
C
C
C
Lower Chassis 2
619
631
632
630
631
640
(214)
(548)
From:Lower Chassis 1
From:Top Cover 
          Assembly
605
9
KV-N1058X/KV-N1028X/KV-N1058Y/KV-N1028Y
KH
KVN1058X
KVN1028X
KVN1058Y
KVN1028Y
9
KV-N1058X/KV-N1028X/KV-N1058Y/KV-N1028Y
KH
KVN1058X
KVN1028X
KVN1058Y
KVN1028Y

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