Panasonic UB-5838C / UB-5338C Service Manual ▷ View online
29
4 Mechanism
4.1.
Screen Feed Mechanism
When the Motor rotates, the Gear of the Screen Main-roller is activated accordingly via the Intermediate Gears.
Two springs on the upper and lower positions adjust the Screen Film tension in the direction of the arrow so as to
bring the Screen Sub-roller into contact with the film.
As shown on the Fig.4.1.1, the Home Marker is attached on the lower position of the scrolled Screen Film so as to tell
Panaboard the screen home position required to feed the screen.
Then the Home Sensor is located on the back of the unit so as to detect the home position.
When the sensor detects the home position, the sensor will inform the control operation block in the CONTROL Board
about the status.
Based on the status, Panaboard will start or stop the screen-feed.
Two springs on the upper and lower positions adjust the Screen Film tension in the direction of the arrow so as to
bring the Screen Sub-roller into contact with the film.
As shown on the Fig.4.1.1, the Home Marker is attached on the lower position of the scrolled Screen Film so as to tell
Panaboard the screen home position required to feed the screen.
Then the Home Sensor is located on the back of the unit so as to detect the home position.
When the sensor detects the home position, the sensor will inform the control operation block in the CONTROL Board
about the status.
Based on the status, Panaboard will start or stop the screen-feed.
30
4.2.
Scanning Mechanism
The Scanner Assy. consists of LED Light-Guide, Lens, and Contact Image Sensors so as to scan the image on the Screen Film.
A light through the LED Light-Guide is reflected from the screen film surface.
Then the reflected light will reach the Contact Image Sensors (CISs) through the Lens. The CISs will convert the light
into electrical signals, and then will transmit the signals to the SCANNER Board.
Then the SCANNER Board will convert the signals into image digital signals, and will transmit the digital signals to
the CONTROL Board.
Then the CONTROL Board will store them in its inner memories so that they can be downloaded to a USB Flash
Memory and a SD Card, or can be printed out with a printer.
A light through the LED Light-Guide is reflected from the screen film surface.
Then the reflected light will reach the Contact Image Sensors (CISs) through the Lens. The CISs will convert the light
into electrical signals, and then will transmit the signals to the SCANNER Board.
Then the SCANNER Board will convert the signals into image digital signals, and will transmit the digital signals to
the CONTROL Board.
Then the CONTROL Board will store them in its inner memories so that they can be downloaded to a USB Flash
Memory and a SD Card, or can be printed out with a printer.
31
5 Troubleshooting Guide
5.1.
Error Code
Error Code
Possible Cause
Check Point
Display
Code Name
F505001
USB Host Error
USB Host (IC12) Access Error 1. Check the soldering condition of IC12 (USB Host) on the
CONTROL Board.
2. Replace the faulty part or CONTROL Board.
2. Replace the faulty part or CONTROL Board.
F505002
USB Device Error USB Device (IC13) Access
Error
1. Check the soldering condition of IC13 (USB Device) on the
CONTROL Board.
2. Replace the faulty part or CONTROL Board.
CONTROL Board.
2. Replace the faulty part or CONTROL Board.
F506144
SD Memory Card
Write Error
Write Error
Write Error to SD Memory
Card occurred while scanning
Card occurred while scanning
1. Confirm that write to the SD Memory is correctly performed
with a PC.
with a PC.
F507144
USB Flash
Memory Write
Error
Memory Write
Error
Write Error to USB Flash
Memory occurred while
scanning
Memory occurred while
scanning
1. Confirm that write to the USB Flash Memory is correctly
performed with a PC.
performed with a PC.
F603001
AFE Error
AFE (Analog Front End:
IC602) Access Error
IC602) Access Error
1. Check the connection between CN606 (SCANNER Board)
and CN5 (CONTROL Board).
2. Check the soldering condition of IC602 (AFE) on the
SCANNER Board.
3. Check the soldering conditions of the following parts.
(1) IC6 (CONTROL Board)
(2) IC604 (SCANNER Board)
4. Replace faulty parts, SCANNER Board, or CONTROL
Board.
and CN5 (CONTROL Board).
2. Check the soldering condition of IC602 (AFE) on the
SCANNER Board.
3. Check the soldering conditions of the following parts.
(1) IC6 (CONTROL Board)
(2) IC604 (SCANNER Board)
4. Replace faulty parts, SCANNER Board, or CONTROL
Board.
F603002
CIS Error
1. SOC (IC4: CONTROL
Board) did not receive the
signals from CIS.
2. CIS is broken.
3. LED isn’t on.
Board) did not receive the
signals from CIS.
2. CIS is broken.
3. LED isn’t on.
1. Check the connection between CN606 (SCANNER Board)
and CN5 (CONTROL Board).
2. Check the connection between CN4 (CONTROL Board)
and CN800 (MOTOR DRIVE Board).
3. Check the connection between CN604 (SCANNER Board)
and CN801 (MOTOR DRIVE Board).
4. Check the connection between CN605 (SCANNER Board)
and Scanner Assy.
5. Check the connections between CIS and CN600 to CN603
(SCANNER Board).
6. Check the soldering conditions of the following parts on the
SCANNER Board.
and CN5 (CONTROL Board).
2. Check the connection between CN4 (CONTROL Board)
and CN800 (MOTOR DRIVE Board).
3. Check the connection between CN604 (SCANNER Board)
and CN801 (MOTOR DRIVE Board).
4. Check the connection between CN605 (SCANNER Board)
and Scanner Assy.
5. Check the connections between CIS and CN600 to CN603
(SCANNER Board).
6. Check the soldering conditions of the following parts on the
SCANNER Board.
→
IC600, IC602 to IC610, IC614, and Q601 to Q606
7. Check the soldering conditions of the following parts on the
CONTROL Board.
CONTROL Board.
→
IC6, IC7, IC8, and IC10
8. Replace faulty parts, Scanner Assy., SCANNER Board, or
CONTROL Board.
CONTROL Board.
F603003
CIS Signal Error
(beyond the
specified level)
(beyond the
specified level)
1. CIS signal is saturated due
to incoming light or sunlight
to the CIS.
2. CIS is broken.
3. CIS signal that SOC(IC14:
CONTROL Board) received
is saturated.
to incoming light or sunlight
to the CIS.
2. CIS is broken.
3. CIS signal that SOC(IC14:
CONTROL Board) received
is saturated.
1. Check that the screen surface for shading is not dirty.
2. Check the connection between CN606 (SCANNER Board)
and CN5 (CONTROL Board).
3. Check the connection between CN4 (CONTROL Board)
and CN800 (MOTOR DRIVE Board).
4. Check the connection between CN604 (SCANNER Board)
and CN801 (MOTOR DRIVE Board).
5. Check the connection between CN605 (SCANNER Board)
and Scanner Assy.
6. Check the connections between CIS and CN600 to CN603
(SCANNER Board).
7. Check the soldering conditions of the following parts on the
SCANNER Board.
2. Check the connection between CN606 (SCANNER Board)
and CN5 (CONTROL Board).
3. Check the connection between CN4 (CONTROL Board)
and CN800 (MOTOR DRIVE Board).
4. Check the connection between CN604 (SCANNER Board)
and CN801 (MOTOR DRIVE Board).
5. Check the connection between CN605 (SCANNER Board)
and Scanner Assy.
6. Check the connections between CIS and CN600 to CN603
(SCANNER Board).
7. Check the soldering conditions of the following parts on the
SCANNER Board.
→
IC600, IC602 to IC610, IC614, and Q601 to Q606
8. Check the soldering conditions of the following parts on the
CONTROL Board.
CONTROL Board.
→
IC6, IC7, IC8, and IC10
9. Replace faulty parts, Scanner Assy., SCANNER Board, or
CONTROL Board.
CONTROL Board.
32
F616001
CPU Error
SOC (IC4: CONTROL Board)
is faulty.
is faulty.
1. Replace the CONTROL Board.
F616002
Flex RISC Error
F616003
DSP Error
F616004
Flash ROM Error
1. Data from SOC (IC4:
CONTROL Board) or from
Flash ROM (IC2) is faulty.
2. Flash ROM (IC2) access
error occurred.
CONTROL Board) or from
Flash ROM (IC2) is faulty.
2. Flash ROM (IC2) access
error occurred.
1. Check the soldering condition of IC2 (Flash ROM) on the
CONTROL Board.
2. Replace faulty parts or CONTROL Board.
CONTROL Board.
2. Replace faulty parts or CONTROL Board.
F616005
SDRAM Error
1. Data from SOC (IC4:
CONTROL Board) or from
SDRAM (IC3) is faulty.
2. SDRAM access error
occurred.
CONTROL Board) or from
SDRAM (IC3) is faulty.
2. SDRAM access error
occurred.
1. Check the soldering condition of IC3 (SDRAM) on the
CONTROL Board.
2. Replace faulty parts or CONTROL Board.
CONTROL Board.
2. Replace faulty parts or CONTROL Board.
F616006
RTC Error
1. RTC (Real Time Clock:
IC19) access error
occurred.
IC19) access error
occurred.
1. Check the soldering condition of IC19 (RTC) on the
CONTROL Board.
2. Replace faulty parts or CONTROL Board.
CONTROL Board.
2. Replace faulty parts or CONTROL Board.
F616007
LCD Error
LCD Access Error
1. Check the connection between CN700 (PANEL Board)
and CN7 (CONTROL Board).
2. Check the connection between CN701 (PANEL Board)
and LCD.
3. Check the soldering conditions of the following parts.
(1) IC16 and IC17 (CONTROL Board)
(2) IC700 and IC701 (PANEL Board)
4. Replace faulty parts, LCD, PANEL Board, or CONTROL
Board.
and CN7 (CONTROL Board).
2. Check the connection between CN701 (PANEL Board)
and LCD.
3. Check the soldering conditions of the following parts.
(1) IC16 and IC17 (CONTROL Board)
(2) IC700 and IC701 (PANEL Board)
4. Replace faulty parts, LCD, PANEL Board, or CONTROL
Board.
U103021
Dark Level
Adjustment Error
Adjustment Error
1. CIS signal is saturated due
to incoming light or sunlight
to the CIS.
2. Dark off-set level (IC602:
SCANNER Board) cannot
be properly adjusted.
3. CIS is broken.
4. SOC (IC4: CONTROL
Board) didn’t receive the
proper signal from CIS.
to incoming light or sunlight
to the CIS.
2. Dark off-set level (IC602:
SCANNER Board) cannot
be properly adjusted.
3. CIS is broken.
4. SOC (IC4: CONTROL
Board) didn’t receive the
proper signal from CIS.
1. Check that the screen surface for shading is not dirty.
2. Check the connection between CN606 (SCANNER Board)
and CN5 (CONTROL Board).
3. Check the connection between CN4 (CONTROL Board)
and CN800 (MOTOR DRIVE Board).
4. Check the connection between CN604 (SCANNER Board)
and CN801 (MOTOR DRIVE Board).
5. Check the connection between CN605 (SCANNER Board)
and Scanner Assy.
6. Check the connections between CIS and CN600 to CN603
(SCANNER Board).
7. Check the soldering conditions of the following parts on the
SCANNER Board.
2. Check the connection between CN606 (SCANNER Board)
and CN5 (CONTROL Board).
3. Check the connection between CN4 (CONTROL Board)
and CN800 (MOTOR DRIVE Board).
4. Check the connection between CN604 (SCANNER Board)
and CN801 (MOTOR DRIVE Board).
5. Check the connection between CN605 (SCANNER Board)
and Scanner Assy.
6. Check the connections between CIS and CN600 to CN603
(SCANNER Board).
7. Check the soldering conditions of the following parts on the
SCANNER Board.
→
IC600, IC602 to IC610, IC614, and Q601 to Q606
8. Check the soldering conditions of the following parts on the
CONTROL Board.
CONTROL Board.
→
IC6, IC7, IC8, and IC10
9. Replace faulty parts, Scanner Assy., SCANNER Board,
CONTROL Board, or CIS.
CONTROL Board, or CIS.
U103022
Light Quantity
Adjustment Error
Adjustment Error
1. CIS signal is saturated due
to incoming light or sunlight
to the CIS.
2. LED quantity is not proper
to scan.
to incoming light or sunlight
to the CIS.
2. LED quantity is not proper
to scan.
1. Check that the screen surface for shading is not dirty.
2. Check the soldering conditions of the following parts on the
SCANNER Board.
2. Check the soldering conditions of the following parts on the
SCANNER Board.
→
IC614 and Q601 to Q606
3. Check the soldering condition of IC6 on the CONTROL
Board.
4. Replace faulty parts, Scanner Assy., SCANNER Board,
CONTROL Board, or CIS.
Board.
4. Replace faulty parts, Scanner Assy., SCANNER Board,
CONTROL Board, or CIS.
U103023
Gain Control Error 1. CIS signal is saturated due
to incoming light or sunlight
to the CIS.
2. AFC IC (IC602: SCANNER
Board) did not control the
gain correctly.
to the CIS.
2. AFC IC (IC602: SCANNER
Board) did not control the
gain correctly.
1. Check that the screen surface for shading is not dirty.
2. Check the soldering conditions of the following parts on the
SCANNER Board.
2. Check the soldering conditions of the following parts on the
SCANNER Board.
→
IC614 and Q601 to Q606
3. Check the soldering condition of IC6 on the CONTROL
Board.
4. Replace faulty parts, Scanner Assy., SCANNER Board,
CONTROL Board, or CIS.
Board.
4. Replace faulty parts, Scanner Assy., SCANNER Board,
CONTROL Board, or CIS.
Error Code
Possible Cause
Check Point
Display
Code Name
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