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2

Suffix

Reason for suffix change

A to B

Correspondence for Russian and Korean certifications.

B to C

Qig and CD-ROM Change, Firmware version up.(Ver.1.01->Ver.1.10)

Suffix

Reason for suffix change

A to B

Correspondence for Russian and Korean certifications.

B to C

Qig and CD-ROM Change, Firmware version up.(Ver.1.01->Ver.1.10)

Suffix

Reason for suffix change

A to B

Qig and CD-ROM Change, Firmware version up.(Ver.1.01->Ver.1.10)

Suffix

Reason for suffix change

A to B

Qig and CD-ROM Change, Firmware version up.(Ver.1.01->Ver.1.10)

Reason for Change
*The following items (1-8) indicate the reason for change. See the “Notes” column for each part in ORIGINAL AND NEW PARTS COMPARISON 
LISTS.
1. Improve performance

Remarks:
*1: If it need to change the several elements of Exit Tray Assy from current condition,
     please change by the assembly unit(PNZTS1057AM1).)
*2: When you change these parts, please change at the same time.
*3: Change Control PCB.(PNLB2677ZA→PNLB2677ZB)

2. Change of material or dimension
3. To meet approved specification
4. Standardization
5. Addition
6. Deletion
7. Correction
8. Other

Interchangeability Code

Parts

Set Production

A Original

New

Early (before change)
Late (after change)

Original or new parts may be used in early or late production sets.
Use original parts until exhausted, then stock new parts.

B Original

New

Early (before change)
Late (after change)

Original parts may be used in early production sets only. New parts may be used in early or
late production sets. Use original parts where possible, then stock new parts.

C Original

New

Early (before change)
Late (after change)

New parts only may be used in early or late production sets.
Stock new parts.

D Original

New

Early (before change)
Late (after change)

Original parts may be used in early production sets only. New parts may be used in late
production sets only. Stock both original and new parts.

E

Addition

F

Deletion

G

Other

Ref. No.

Part No.

Part Name & Description

Pcs

Remarks

Time of 

change (Suffix)

Original (Old)

-U

-M2

Top Cover Assembly
108

PNKS1055Z1

Exit Tray 3

1

*1

8

B

109

PNKS1056Z1

Exit Tray Stopper

1

*1

8

B

114

PNZTS1057AM

Exit Tray Assy

1

*1

8

B

115

PNYE7776Z

Exit tray 1 Assy

1

*1

8

B

3

Top Cover Assembly
207

------

Card Guide Storage Label for KV-
S1057C-M2/-J2/KV-S1027C-M2/-J2

1

5

---

Upper Chassis
436

PNZES1571M

Scanning Glass (B)

1

8

B

Lower Chassis 2 For KV-S1058Y,S1028Y
609

PNME1064Z

Motor Earth Spring

1

6

---

Lower Chassis 2 For KV-S1057C-M2/J2,S1027C-M2/J2
609

PNME1064Z

Motor Earth Spring

1

6

---

Packing
P10

PNJX1095Z

CD-ROM

1

8

C

P10

PNJX1096Y

CD-ROM

1

8

B

C

B

P11

PNQX8587Z

Quick Installation Guide for KV-
S1027C-M2/J2/S1057C-M2/J2

1

8

B

---

B

P11

PNQX8558Z

Quick Installation Guide (8 languages) 
for KV-S1028Y/S1058Y

1

8

B

C

---

P11

PNQX8560Z

Quick Installation Guide (Arabic) for 
KV-S1028Y/S1058Y

1

8

B

C

---

CONTROL Board KV-S1057C/S1058Y
JK3

K1FY109B0046

CONNECTOR

1

8

A

R143

------

RESISTOR,47k

1

*2*3

5

---

R147

------

RESISTOR,47k

1

*2*3

5

---

R642

ERJ2GEJ102

RESISTOR,1k

1

*2*3

6

---

R644

ERJ2GEJ102

RESISTOR,1k

1

*2*3

6

---

CONTROL Board KV-S1027C/S1027Y
JK3

K1FY109B0046

CONNECTOR

1

8

A

Ref. No.

Part No.

Part Name & Description

Pcs

Remarks

Time of 

change (Suffix)

Original (Old)

-U

-M2

4

LED does not light
up.

1. Power cord is not inserted correctly.

Insert the power cord correctly.

2. Cables in the scanner are not 

connected properly. (especially around 
Power Supply)

Insert the cables properly.

3. Power Board does not work, properly.

1. Measure the following voltage on CONTROL Board.

CN21  4-5th pin: +24V

2. Check the connection between the Control Board and 

Power Board.

3. Replace Power Board.

4. Power Switch on LCD PANEL Board 

does not work, properly.

1. Check the following connection.

(1) CN4000 (LCD PANEL Board) and CN10 (CONTROL 

Board)

(2) FFC Cable

2. Measure the following resistance value, when the power 

cord is unplugged.
(1) CN4000 10th pin – GND : 0 Ω (SW4007 ON)
(2) CN4000 10th pin – GND : over 10kΩ (SW4007 OFF)

3. Replace SW4007 or LCD PANEL Board.

5. Boot program of this scanner does not 

work, correctly.

Replace CONTROL Board

6. DC ON/OFF circuit on CONTROL 

Board does not work correctly.

1. Monitor the following signals. (when turning on the power)

(1) Q51-G : Typ. 12 V
(2) Q48-C : Typ. 11 V
(3) Q50-B : Typ. 0.6 V
(4) +7.0V (CL189) : Typ. 7V

2. Check the soldering condition of the following parts and of 

their surrounding circuits on the CONTROL Board. 
Q48, Q50, Q51

3. Monitor the following signals.

(1) Q48 (C-E) : Typ. 0 V
(2) Q50 (C-E) : Typ. 0 V

4. Replace faulty parts.

7. CONTROL Board does not work 

properly.

1. Perform the "LED" test in Sec. 

10.3.8.

 to check the LED 

ON/OFF status.

2. Check whether all connections and cables on the 

CONTROL Board are normal.

3. Check the soldering condition of the following parts and of 

their surrounding circuits on the CONTROL Board.
(1) +1.2V (CL196) : Typ. 1.2V
(2) +7V (CL189)    : Typ. 7.0V
(3) +3.3V (CL190) : Typ. 3.3V
(4) IC9 (PF4)
(5) IC6 (Reset IC)

4. Check the soldering condition of the following parts on the 

CONTROL Board.
(1) CN10

5. Monitor the following signals. 

CN10-8th pin : +3.3V

6. Replace faulty parts or CONTROL Board.

8. LCD PANEL Board does not work 

properly.

1. Perform the "LED" test in Sec. 

10.3.8.

 to check the LED 

ON/OFF status.

2. Check the following connection.

between CN4000(LCD PANEL Board) and CN10 
(CONTROL Board)

3. Check the soldering condition of the following parts on the 

LCD PANEL Board.
(1) CN4000
(2) IC4000

4. Monitor the following signals on the CN4000. 

CN4000-3pin : +3.3V

5. Replace faulty parts or LCD PANEL Board.

5

9. FAN dose not rotate.

1. Try to rotate the FAN, manually.
2. Check the power supply to the FAN.
3. Replace the FAN.

Scanner does not 
recognize USB 
connection.

1. USB cable is not connected normally.

1. Check the device (USB) condition of PC with Device 

Manager.

2. Re-attach the USB cable, and then restart the scanner 

and PC.

3. Replace the USB cable.

2. USB interface circuit does not work.

1. Check the soldering condition of the following parts and of 

their surrounding circuits on the CONTROL Board, and 
then repair it.
(1) JK3 (USB IF connector)
(2) LF4 (Common mode filter)
(3) LF6 (Common mode filter)
(4) IC9 (PF4)

2. Replace the CONTROL Board.

START/STOP Button, 
Skip Button, or Cursor 
Button don’t work 
properly.

1. Mechanical problem with ON/OFF 
    switch.

1. Perform the "Key / Sensor" test in Sec. 

10.3.8.

 to check 

following button's ON/OFF status.
(1) [Start/Stop] SW4100 on PANEL SWITCH Board
(2) [Skip] SW4101 on PANEL SWITCH Board
(3) [Up] SW4102 on PANEL SWITCH Board
(4) [Down] SW4103 on PANEL SWITCH Board
(5) [Left] SW4104 on PANEL SWITCH Board
(6) [Right] SW4105 on PANEL SWITCH Board
(7) [Set] SW4106 on PANEL SWITCH Board

2. Check the button’s ON/OFF mechanical condition.
3. Replace faulty parts.

2. ON/OFF monitor circuit does not 

function.

1. Check the soldering condition of the following parts and of 

their surrounding circuits on the PANEL SWITCH Board.
(1) SW4100, R4101
(2) SW4101, R4102
(3) SW4102, R4100
(4) SW4103, R4106
(5) SW4104, R4105
(6) SW4105, R4103
(7) SW4106, R4104

2. Check the following connection.

(1) Between CN4000 (LCD PANEL Board) and CN10 

(CONTROL Board)

(2) FFC Cable
(3) Between CN4002 (LCD PANEL Board) and CN4100 

(PANEL SWITCH Board)

3. Check the soldering condition of the following parts and 

their surrounding circuits on the CONTROL Board.
(1) CN10

4. Check the following signals on the LCD PANEL Board.

IC4000

5. Replace faulty parts or boards.

Scanning position is 
shifted.

1. After replacing or re-assembling the 

CIS assembly and/or mechanical parts 
related to conveying documents, 
re-adjustment of scanning position has 
not been done.

1. Perform the "All Position" and/or "Individual Position" 

in Sec.

10.3.9.

 so that the scanning position can be 

adjusted properly.

2. The CIS assembly is not installed 

properly. 

1. Re-assemble the CIS Assembly. (See Sec 

8.3.5.

 & 

8.4.2.

)