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4.2  Outline of PDP Module Repair Flow 

Appearance check

Appearance unacceptable

(NG) ?

Repair of appearance

requested ?

Perform operation test

(Chapter 4.4).

Repair description and returned

product rechecked.

Yes

Does ID of

returned product agree with ID

of actual

Repair defective spots

Problem recurred ?

Receipt of returned product

(Chapter 4.3)

No

Yes

Yes

Yes

No

No

No

Check description of

repair request.

No

Contents match ?

Problem symptom nonrecurrence

analysis mode

Yes

Yes

2

1

3

4

 

  

 

  

 

 

 

 

23

Perform operation test (Chapter 4.4)

Shipment

No

Yes

Adjustment (Chapter 6)

Yes

1

Replace LOGIC PC board or

panel chassis ?

Fault mode classification (Chapter 4.5)

Fault analysis (Chapter 4.6)

Repair of faulty spots (Chapter 5)

3

Problem repaired?

End of repair

Warranty test (Running)

No

 

 

  

 

  

 

 

 

 

24

 

Perform running test (Burn-in pattern) 

Yes

Yes 

No

5

Problem recurs ? 

Implement module tapping 

2

Turn off the main power 

No 

Problem recurs ? 

3 

 

  

 

  

 

 

 

 

25

  4.3    Checking the Product Requested for Repair 
    Check the serial ID number of the product requested for repair before starting the problem 

analysis and repair.   

        Structure of serial ID number is shown below.   
        (1) Checking serial ID number of PDP module (14 digits)   
              The serial ID number of the product that is brought in for service and that of the completed 

panel chassis has the structure as shown below. 

            The serial ID number is shown on the bar code label that is attached to the rear of the chassis 

(aluminum).  

             N7A  1  01  001A1    01A 

                                                                                        Version No.:    01 ~ 99 

                                                                                                                A ~ Z (excluding I and O) 

                                                Lot No.:  001 ~ 999 

                                                                                                                A ~ Z (excluding I and O) 

                                                                                                                1 ~ 3 

                                    Production week code:  01 ~ 53 

                                 Production year (low digit):  0 ~ 9 

                                            Product code:  N7A model 42 H1/2 type 
         Module product label                   Serial ID label of panel chassis 

 
  ※ The module serial ID number and the serial ID number of the completed chassis (product 
requested for repair) are usually the same when the product is brought in for repair for the first time.   
        (2) Checking serial ID number of constituent PC boards (12 digits)   
              The serial ID number of the module constituent PC boards has the following structure.   
              The serial ID number is shown on the bar code label that is attached to each PC board. 

             Cs  1  01   00001      1A 

                                                                                          Version No.:    1 ~ 9 , a~z   

                                                                                                                  A ~ Z    (excluding I and O) 

                                                 Lot No.:  00001 ~ Z9999 

                                      Production week code:  01 ~ 53 

                                  Production year (low digit):  0 ~ 9 

                                             Product code:  Cs:X-SUS board 

                                                                                                                :    Ct:Y-SUS board 

                                                                                                                :    CR : ABUSR board 

                                                                                                                :    CS : ABUSL board 

                                                                                                                :    Cv:LOGIC board 

                                                                                                                :    CU : PSU board