UB-5838C, UB-5338C - Panasonic Other Service Manuals Service Manual (repair manual)

Order Number KM70906495CE

Category Number H19

2

PAGE

PAGE

1 General Precautions ---------------------------------------------3

1.1. Safety Precautions-----------------------------------------3
1.2. Electrical Tests ----------------------------------------------3
1.3. Standard for Repair Service -----------------------------4
1.4. For Service Technicians ----------------------------------4
1.5. About Lead Free Solder (PbF: Pb free) --------------4
1.6. About RoHS -------------------------------------------------5

2 Introduction ---------------------------------------------------------6

2.1. Before using this manual ---------------------------------6
2.2. Specifications -----------------------------------------------7
2.3. External View------------------------------------------------9
2.4. Control Panel Operation-------------------------------- 10
2.5. External Dimensions ------------------------------------ 11
2.6. Main Components’ (Scanner Assy., PCB

Assembly, and others) Locations--------------------- 13

3 Installation Instructions--------------------------------------- 15

3.1. Installation Requirements ------------------------------ 15
3.2. Minimum Space Requirements ----------------------- 15
3.3. Installing ---------------------------------------------------- 16
3.4. Operation Check and Settings before using

Panaboard ------------------------------------------------- 21

3.5. Repacking-------------------------------------------------- 23
3.6. Wall Mounting Construction --------------------------- 24

4 Mechanism -------------------------------------------------------- 29

4.1. Screen Feed Mechanism ------------------------------ 29
4.2. Scanning Mechanism ----------------------------------- 30

5 Troubleshooting Guide---------------------------------------- 31

5.1. Error Code ------------------------------------------------- 31
5.2. Printing Problems ---------------------------------------- 36
5.3. Others ------------------------------------------------------- 37
5.4. Requirements after replacing and servicing ------- 39

6 Disassembly and Assembly Instructions --------------- 40

6.1. Cover -------------------------------------------------------- 40
6.2. SCANNER Board and Scanner Assy.--------------- 43
6.3. Motor Drive Unit ------------------------------------------ 45
6.4. HOME SENSOR Board--------------------------------- 46
6.5. MOTOR DRIVE Board ---------------------------------- 47
6.6. Control Box Unit ------------------------------------------ 48
6.7. Screen Roller---------------------------------------------- 54
6.8. Screen Guide R and Screen Guide L --------------- 57
6.9. Screen Film ------------------------------------------------ 59

6.10. Frame ------------------------------------------------------- 64

7 Service Mode ----------------------------------------------------- 69

7.1. How to enter the service mode ----------------------- 69
7.2. Service Mode and Initial Setting Mode ------------- 72
7.3. LCD Test Pattern ----------------------------------------- 74
7.4. Service Mode Operations ------------------------------ 75

8 Maintenance ------------------------------------------------------ 76

8.1. Maintenance Table--------------------------------------- 76
8.2. Cleaning Screen Film ----------------------------------- 76
8.3. Caring for Eraser ----------------------------------------- 77
8.4. Replacing the Battery ----------------------------------- 78

9 Block and Connection Diagrams -------------------------- 79

9.1. Block Diagram -------------------------------------------- 79
9.2. Connection Diagram------------------------------------- 80

10 Explanation of Connector ------------------------------------ 81

11 Schematic Diagram--------------------------------------------- 86

11.1. CONTROL Board ---------------------------------------- 87

11.2. PANEL Board --------------------------------------------- 91
11.3. SCANNER Board ---------------------------------------- 92
11.4. MOTOR DRIVE Board --------------------------------- 95
11.5. HOME SENSOR Board -------------------------------- 96

12 Printed Circuit Board------------------------------------------ 97

12.1. CONTROL Board ---------------------------------------- 98
12.2. PANEL Board --------------------------------------------- 99
12.3. SCANNER Board ---------------------------------------- 99
12.4. MOTOR DRIVE Board -------------------------------- 100
12.5. HOME SENSOR Board ------------------------------- 100

13 Exploded View and Replacement Parts List---------- 101

13.1. Framework of Projected Diagram ------------------ 102
13.2. Cabinet Unit ---------------------------------------------- 103
13.3. Motor Drive Unit / Sensor Unit ---------------------- 105
13.4. Control Box Unit----------------------------------------- 107
13.5. Screen Feed Roller Unit ------------------------------ 109
13.6. Scanner Unit --------------------------------------------- 111
13.7. Panel Unit------------------------------------------------- 113
13.8. Frame Unit------------------------------------------------ 115
13.9. Rear Cover Unit ----------------------------------------- 117

13.10. Packing---------------------------------------------------- 119

13.11. CONTROL Board --------------------------------------- 121

13.12. SCANNER Board --------------------------------------- 131
13.13. PANEL Board -------------------------------------------- 134
13.14. MOTOR DRIVE Board -------------------------------- 136
13.15. SENSOR CIRCUIT Board ---------------------------- 136

3

1. Unplug the power cord and check for continuity between the earth ground connection on the plug and the metal cabinet.

There should be zero ohm resistance found.

2. With the unit unplugged, short the AC Live-Neutral of the plug with a jumper wire. 
3. Turn ON the power switch.
4. Measure the resistance value with an ohmmeter between the jumpered AC plug and each exposed metal cabinet part, such

as screwheads, etc.
Note
   Some exposed parts may be isolated from the chassis by design. They read infinity.

5. If the measurement is less than 1 M

Ω

, a possibility for electric shock may exit.

4

Repair service shall be provided in accordance with repair technology information such as service manual
so as to prevent fires, injury or electric shock, which can be caused by improper repair work.

1. When performing repairs, neither the products nor its parts or components shall be modified.
2. If cable assembly is supplied as the smallest unit when servicing, make sure to replace

the cable assembly.

ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help to prevent recurring malfunctions.

1. Cover the plastic parts with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on the worktable.
4. Do not grasp IC or LSI pins with bare fingers.

• In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder

• We will use PbF when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),

• This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and

• PCBs (manufactured) using lead free solder will have a PbF stamp on the PCB.

• PbF solder has a melting point that is 50 

°

°

°

°

°

°

°

°

• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100 

°

°

• When applying PbF solder to double layered boards, please check the component side for excess solder which may

We recommend you to use the following solder when re-soldering components for repair. Before using other Pb free solder than the
following solder, make sure to confirm that the solder maker (you use) has the license agreement for Pb free solder.

Supplier: Senju Metal Industry Co., Ltd. (http://www.senju-m.co.jp)
Part Description in Senju: EcoSolder RMA02 P3 M705 Series