KX-PX1CX - Panasonic Copying Equipment Service Manual (repair manual). Page 2

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1 Safety Precaution -------------------------------------------------3

1.1. For Service Technicians ----------------------------------3

2 Warning --------------------------------------------------------------4

2.1. Insulation Resistance Test -------------------------------4
2.2. Important Safety Instructions----------------------------4
2.3. About Lead Free Solder (PbF: Pb free) --------------5

3 Specifications ------------------------------------------------------6
4 Technical Descriptions------------------------------------------7

4.1. Connection Diagram---------------------------------------7
4.2. General -------------------------------------------------------8
4.3. Thermal Head --------------------------------------------- 10
4.4. Mechanism------------------------------------------------- 11
4.5. Microcomputer I/O table -------------------------------- 14
4.6. CPU Operation-------------------------------------------- 29
4.7. Sensors and Switches ---------------------------------- 31
4.8. Interfaces with the peripheral equipment ---------- 34

5 Location of Controls and Components------------------ 43
6 Installation Instructions--------------------------------------- 44

6.1. Connecting a Power Source -------------------------- 44
6.2. Connecting the printer to a digital camera --------- 44
6.3. Connecting the printer to a computer --------------- 45
6.4. Paper and Ink Cassettes (Sold Separately) ------- 46
6.5. Inserting the Paper--------------------------------------- 48
6.6. Inserting the Ink Cassette ------------------------------ 50
6.7. PictBridge Printing with a Digital Camera ---------- 51
6.8. LED Indicators -------------------------------------------- 52

7 Test Mode ---------------------------------------------------------- 53

7.1. VTH voltage adjustment -------------------------------- 53

8 Troubleshooting Guide---------------------------------------- 56

8.1. Display of LED errors (red) ---------------------------- 56
8.2. Display of errors (service mode table) -------------- 57
8.3. Repair/Check procedures ------------------------------ 58
8.4. How to check the communications of the

PictBridge and USB terminals ------------------------ 66

8.5. Fail-safe functions---------------------------------------- 67
8.6. Mechanism Section-------------------------------------- 68

9 Disassembly and Assembly Instructions --------------- 71

9.1. Disassembly Flowchart --------------------------------- 71
9.2. Disassembly procedure--------------------------------- 72
9.3. How to terminate the leads and the flat cables --- 77
9.4. How to replace the thermal head unit --------------- 78
9.5. Writing the serial number------------------------------- 82

10 Maintenace -------------------------------------------------------- 83

10.1. Maintenance tool ----------------------------------------- 84
10.2. Factory settings------------------------------------------- 88
10.3. Gear Section ---------------------------------------------- 89

11 Miscellaneous ---------------------------------------------------- 93

11.1. Terminal Guide of the ICs Transistors and

Diodes------------------------------------------------------- 93

11.2. How to Replace the Flat Package IC --------------- 94

12 Schematic Diagram--------------------------------------------- 96

12.1. Main Circuit ------------------------------------------------ 96

13 Printed Circuit Board ---------------------------------------- 112

13.1. Main Board------------------------------------------------112

14 Appendix Information of Schematic Diagram ------- 114
15 Exploded View and Replacement Parts List --------- 115

15.1. Cabinet, Mechanical and Electrical Parts

Location----------------------------------------------------115

15.2. Replacement Parts List ------------------------------- 119