Panasonic KX-TG8421CAT / KX-TGA840UAT (serv.man4) Service Manual / Supplement ▷ View online
ORDER NO. KM41004937SE
Telephone Equipment
Model No.
KX-TG8421CAT
KX-TGA840UAT
KX-TGA840UAT
Digital Cordless Answering System
T: Titanium Black Version
(for Kazakhstan)
(for Tajikistan)
(for Uzbekistan)
(for Turkmenistan)
(for Kyrgyzstan)
(for Kazakhstan)
(for Tajikistan)
(for Uzbekistan)
(for Turkmenistan)
(for Kyrgyzstan)
TABLE OF CONTENTS
PAGE
1 REPLACEMENT PARTS LIST--------------------------------- 2
1.1. REFERENCE CHART------------------------------------ 2
1.2. ORIGINAL AND NEW PARTS COMPARISON
1.2. ORIGINAL AND NEW PARTS COMPARISON
LISTS --------------------------------------------------------- 2
Please file and use this supplement manual together with the service manual for Model No. KX-
TG8421CAT/KX-TGA840UAT, Order No. KM40903858CE.
TG8421CAT/KX-TGA840UAT, Order No. KM40903858CE.
2
KX-TG8421CAT/KX-TGA840UAT
1 REPLACEMENT PARTS LIST
1.1.
REFERENCE CHART
1.2.
ORIGINAL AND NEW PARTS COMPARISON LISTS
Change of the Suffix Code
Base Unit
Serial No.Label tells you the suffix code as follows
Handset
Serial No.Label tells you the suffix code as follows
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
*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
Note:
Parts with *1 marking have been changed at the same time for charging detection.
The change shall be managed with a serial number.
Parts with *1 marking have been changed at the same time for charging detection.
The change shall be managed with a serial number.
Remark:
*c: To share the parts with other models
*c: To share the parts with other models
2. Change of material or dimension
3. To meet approved specification
4. Standardization
5. Addition
6. Deletion
7. Correction
8. Other
3. To meet approved specification
4. Standardization
5. Addition
6. Deletion
7. Correction
8. Other
Suffix Code
Reasons of change
B to C
Due to revision of handset suffix (B to C). (There is no part change in the parts list.)
C to D
To share the parts with other models.(There is no part change in the parts list.)
Suffix Code
Reasons of change
B to C
Main P.C. Board of Handset is changed from PNLB1104ZB-GW to PNLB11040YA-GW displayed on Printed Cir-
cuit Board.
cuit Board.
Ref. No.
Part No.
Part Name & Description
Pcs/
Set
Remarks
Notes
Time of Change
Original (Old)
New
(Suffix)
Main P.C.Board Parts (Base Unit)
D1
D1
B0JCME000035
D0GLR00Z0001
DIODE (SI)
1
*c
4
V
---
D9
MA111
----------
DIODE (SI)
0
*c
6
---
---
D22
B0ECKM000008
D0GLR00Z0001
DIODE (SI)
*1
1
*c
4
Y
---
RA501
EXB28VR000X
D1H810240004
RESISTOR ARRAY
1
*c
4
W
---
R55, R56
ERJ1TYJ3R9U
ERJ1TYJ5R6U
RESISTOR, 5.5
Ω
*1
2
*c
4
Y
---
3
KX-TG8421CAT/KX-TGA840UAT
K.T.
KXTG8421CAT
KXTGA840UAT
R511, R516 ERJ2GE0R00
ERJ2GEJ102
RESISTOR, 1k
Ω
2
*c
4
W
---
C623
----------
ECUV1H100JCV
CAPACITOR, 10pF
*1
1
*c
5
W
---
C626
----------
F1G1H5R0A480
CAPACITOR, 5pF
*1
1
*c
5
W
---
Main P.C.Board Parts (Handset)
L8
L8
----------
J0JHC0000045
IC FILTER
1
*c
5
Y
B to C
C38
----------
ECUE1H390JCQ
CAPACITOR, 39pF
1
*c
5
Y
B to C
C138, C139
----------
ECUE1H100DCQ
CAPACITOR, 10pF
2
*c
5
Y
B to C
Ref. No.
Part No.
Part Name & Description
Pcs/
Set
Remarks
Notes
Time of Change
Original (Old)
New
(Suffix)
Display
