KX-FLM663RU (serv.man7) - Panasonic Fax Service Manual Supplement (repair manual). Page 2

2

Serial No.Label tells you the suffix code as follows.

There are two kinds of Main Board, a new type, old type. The service of new type and old type Main Boards should proceed
according to each respective procedure.
When replacing the Main Board or parts on the Main Board, first confirm if it is a new or old type Main Board by referring to the
table below.
For the New MAIN BOARD (Suffix code is F or later), see to 2.1. Schematic Diagram (Main Board) (P.3), 2.2. Printed Circuit
Board (P.12) and 2.3. Replacement Parts List (MAIN BOARD PARTS) (P.14) for detail.
And for the Old MAIN BOARD (Suffix code is C or the previous C), see to the Service Manual for KX-FLM663RU (Order
No. KMF0806166CE) for detail.

  (The fifth digit of the serial number is the suffix.)

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

Remark: 
*a : To enhance the quality.

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

Suffix C 

ψ F

F

Serial No. Label

(Example)

Ref. 

No.

Part No.

Part Name & Description

Pcs/

Set

Remarks

Time of Change

Original (Old)

(Suffix)

MAIN BOARD PARTS
PCB1

PNWP1M663RU5 PNWP1M663RUD MAIN BOARD ASS'Y (RTL)

1

*a

1

W

C to F

Old type

C or the previous C

PFUP1714ZA-1

New type

F or later

C625

C672

C673

R509

C555

D503

1

4

-2

PFUP1714ZA

2011.04.01

PbF

502

+24V