KX-TDA6175XJ, KX-TDA6175X (serv.man2) - Panasonic PBX Service Manual Supplement (repair manual). Page 2

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Main Board of KX-TDA6175XJ/ KX-TDA6175X is changed from PSUP1514ZA to PSUP1514YA displayed on Printed Circuit Board.

Suffix

Reason for suffix change

G to H

Change of IC

H to I

Request from vender. PCB change (PSUP1514ZA to PSUP1514YA)

I to J

Change of RESISTOR and TRANSISTOR 

J to K

Change of FUSE

Suffix

Reason for suffix change

E to F

Change of RESISTOR and TRANSISTOR 

F to G

Change of FUSE

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

Interchangeability Code (Symbols: B) Following V-Z interchange abilities are indicated on the Notes in the bottom column.

Parts

Set Production

V Original

New

Early (before change)
Late (after change)

Original or new parts may be used in early or late production sets.
Use original parts until exhausted, then stock new parts.

W Original

New

Early (before change)
Late (after change)

Original parts may be used in early production sets only. New parts may be used in early or
late production sets. Use original parts where possible, then stock new parts.

X Original

New

Early (before change)
Late (after change)

New parts only may be used in early or late production sets.
Stock new parts.

Y Original

New

Early (before change)
Late (after change)

Original parts may be used in early production sets only. New parts may be used in late
production sets only. Stock both original and new parts.

Z Other