KX-TG8421RUB, KX-TG8421RUN, KX-TG8421RUT, KX-TG8421RUW, KX-TG8422RUB, KX-TG8422RUN, KX-TGA840RUB, KX-TGA840RUN, KX-TGA840RUT, KX-TGA840RUW - Panasonic Telephone Service Manual (repair manual). Page 103

Read Panasonic KX-TG8421RUB / KX-TG8421RUN / KX-TG8421RUT / KX-TG8421RUW / KX-TG8422RUB / KX-TG8422RUN / KX-TGA840RUB / KX-TGA840RUN / KX-TGA840RUT / KX-TGA840RUW Service Manual online

103
KX-TG8421RU/KX-TG8422RU/KX-TGA840RU
15.5. Replacement Part List
1. RTL (Retention Time Limited)
Note:
The “RTL” marking indicates that its Retention Time is
Limited. 
When production is discontinued, this item will con-
tinue to be available only for a specific period of time.
This period of time depends on the type of item, and
the local laws governing parts and product retention.
At the end of this period, the item will no longer be
available.
2. Important safety notice
Components identified by the   mark indicates special
characteristics important for safety. When replacing any
of these components, only use specified manufacture’s
parts.
3. The S mark means the part is one of some identical parts.
For that reason, it may be different from the installed part.
4. ISO code (Example: ABS-94HB) of the remarks column
shows quality of the material and a flame resisting grade
about plastics.
5. RESISTORS & CAPACITORS
Unless otherwise specified;
All resistors are in ohms (
Ω) k=1000 Ω, M=1000 kΩ
All capacitors are in MICRO FARADS (
µF)p=µµF
*Type & Wattage of Resistor
15.5.1. Base Unit
15.5.1.1. Cabinet and Electrical Parts
15.5.1.2. Main P.C.Board Parts
Note:
(*1) When replacing IC7, IC401 or X1, make the adjustment
using PNZZTG8421RU. Refer to How to download the
data
 (P.69) of Things to Do after Replacing IC or X'tal.
(*2) When removing E1, use special tools (ex. Hot air disor-
dering tool).
(*3) Backside of this IC has a ground plate.
(*4) Supplied IC is Flat Package Type.
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
1
PNGP1050Y1 
 
 
 
 
 
 
 
PANEL, LCD (for KX-
TG8421RUB)
ABS-HB
1
PNGP1050X3 
 
 
 
 
 
 
 
PANEL, LCD (for KX-
TG8421RUN)
ABS-HB
1
PNGP1050X2 
 
 
 
 
 
 
 
PANEL, LCD (for KX-
TG8421RUT)
ABS-HB
1
PNGP1050Y5 
 
 
 
 
 
 
 
PANEL, LCD (for KX-
TG8421RUW)
ABS-HB
2
PNGG1035Z1 
 
 
 
 
 
 
 
GRILLE (for KX-
TG8421RUB)
ABS-HB
2
PNGG1035Z2 
 
 
 
 
 
 
 
GRILLE (for KX-
TG8421RUN/RUW)
ABS-HB
2
PNGG1051Z1 
 
 
 
 
 
 
 GRILLE 
(for 
KX-
TG8421RUT)
ABS-HB
3
PNKM1071Y1 
 
 
 
 
 
 
 
CABINET BODY (for KX-
TG8421RUB)
ABS-HB
3
PNKM1071X2 
 
 
 
 
 
 
 
CABINET BODY (for KX-
TG8421RUN)
ABS-HB
3
PNKM1071W4 
 
 
 
 
 
 
 
CABINET BODY (for KX-
TG8421RUT)
ABS-HB
3
PNKM1071Y5 
 
 
 
 
 
 
 
CABINET BODY (for KX-
TG8421RUW)
ABS-HB
4
K2ECYZ000001 
 
 
 
 
 JACK,  DC
5
L0AD02A00026 
 
 
 
 
 SPEAKER
6
PQHG10729Z 
 
 
 
 
 
 
 RUBBER PARTS,SPEAKER
7
PQHR11313Z 
 
 
 
 
 
 
 GUIDE, SPEAKER
ABS-HB
8
PQJJ1T039Y 
 
 
 
 
 
 
 JACK, MODULAR
9
PNKE1028Z1 
 
 
 
 
 
 
 
CASE, CHARGE TERMINAL
(for KX-TG8421RUB/RUT)
PS-HB
9
PNKE1028Z2 
 
 
 
 
 
 
 
CASE, CHARGE TERMINAL
(for KX-TG8421RUN)
PS-HB
9
PNKE1028Z3 
 
 
 
 
 
 
 
CASE, CHARGE TERMINAL
(for KX-TG8421RUW)
PS-HB
10
PNHR1104Z  
 
 
 
 
 
 
 OPTI CCONDUCTIVE PARTS,
LED LENS
PS-HB
11
PNBC1023Z1 
 
 
 
 
 
 
 BUTTON, ERASE
ABS-HB
12
PNBC1266Y1 
 
 
 
 
 
 
 BUTTON, ANSWER ON
ABS-HB
13
PNBC1024Z1 
 
 
 
 
 
 
 BUTTON, STOP
ABS-HB
14
PNBC1025Z1 
 
 
 
 
 
 
 BUTTON, LOCATOR
ABS-HB
15
PNBC1018Z1 
 
 
 
 
 
 
 BUTTON,  NAVIGATOR  KEY
(for KX-TG8421RUB/RUT)
ABS-HB
15
PNBC1018Y4 
 
 
 
 
 
 
 BUTTON,  NAVIGATOR  KEY
(for KX-TG8421RUN)
ABS-HB
15
PNBC1018Z2 
 
 
 
 
 
 
 BUTTON,  NAVIGATOR  KEY
(for KX-TG8421RUW)
ABS-HB
16
PNHR1010Z  
 
 
 
 
 
 
 GUIDE, BUTTON
PS-HB
17
PNBC1001Z2 
 
 
 
 
 
 
 
BUTTON, MESSAGE (for
KX-TG8421RUB/RUT)
AS-HB
17
PNBC1001Z5 
 
 
 
 
 
 
 
BUTTON, MESSAGE (for
KX-TG8421RUN)
AS-HB
17
PNBC1001Z1 
 
 
 
 
 
 
 
BUTTON, MESSAGE (for
KX-TG8421RUW)
AS-HB
18
PNJK1047Z  
 
 
 
 
 
 
 KEYBOARD SWITCH
19
PNYE1011Z  
 
 
 
 
 
 
 SPACER, ANTENNA
20
PNJT1025Z  
 
 
 
 
 
 
 CHARGE TERMINAL
21
PNLA1002Z  
 
 
 
 
 
 
 ANTENNA
22
PNKF1054X1 
 
 
 
 
 
 
 CABINET COVER (for KX-
TG8421RUB/RUT)
PS-HB
22
PNKF1054X2 
 
 
 
 
 
 
 CABINET COVER (for KX-
TG8421RUN)
PS-HB
22
PNKF1054X3 
 
 
 
 
 
 
 CABINET COVER (for KX-
TG8421RUW)
PS-HB
23
PQHA10023Z 
 
 
 
 
 
 
 RUBBER PARTS, FOOT
24
PNGT2094Z  
 
 
 
 
 
 
 
NAME PLATE (for KX-
TG8421RUB)
24
PNGT2094Y  
 
 
 
 
 
 
 
NAME PLATE (for KX-
TG8421RUN)
24
PNGT2094W  
 
 
 
 
 
 
 
NAME PLATE (for KX-
TG8421RUT)
24
PNGT2094V  
 
 
 
 
 
 
 
NAME PLATE (for KX-
TG8421RUW)
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
PCB1
PNWP18421RUH MAIN P.C.BOARD ASS'Y
(RTL)
  
(ICs)
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
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