KX-TDA3450XJ, KX-TDA3450X (serv.man2) - Panasonic PBX Service Manual Supplement (repair manual). Page 2

2

*1: See Section 1.1. for Suffix change.

H.M.

KXTDA3450XJ

KXTDA3450X

Suffix

Reason for suffix change

A to B

Software change (IC17: Ver. U2C1AA to U2C1AB)

B to C

Software change (IC17: Ver. U2C1AB to U2C1AC)

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 (Symbol: 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

Ref. No.

Part No.

Part Name & Description

Pcs Remarks

Notes

Time of change (Suffix)*1

Original (Old)

KX-TDA3450XJ KX-TDA3450X

Accessories and Packing Materials
A6

PSQX4379ZCD

INSTRUCTION BOOK, CD-ROM 
(KX-TDA3450X)

1

8

W

C

A6

PSQX4380ZCD

INSTRUCTION BOOK, CD-ROM 
(KX-TDA3450XJ)

1

8

W

C

Main Board Parts
IC17

PSWIDA3450XJ

IC

1

8

X

B

B

IC17

PSWIA3450XJ1

IC

1

8

X

C

C

C185, C189 ECJ4YB0J226M

ECJ3YB0J226M CAPACITOR, 22

µF

2

8

X