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Model
KX-TG2521CAT KX-TGA251RUT
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77
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2.51 MB
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Service Manual
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Device
Telephone / DIGITAL CORDLESS ANSWERING SYSTEM
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kx-tg2521cat-kx-tga251rut.pdf
Date

Panasonic KX-TG2521CAT / KX-TGA251RUT Service Manual ▷ View online

73
KX-TG2521CAT/KX-TGA251RUT
15.3. Accessories
A2
A1
74
KX-TG2521CAT/KX-TGA251RUT
15.4. 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
continue 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
15.4.1. Base Unit
15.4.1.1. Cabinet and Electrical Parts
15.4.1.2. Main P.C.Board Parts
Note:
(*1) When replacing IC7, IC401 or X1, make the adjustment
using PNZZTG2521CA. Refer to How to download the
data
 (P.51) of Things to Do after Replacing IC or X'tal.
(*2) When removing E1, use special tools (ex. Hot air
disordering tool).
(*3) Backside of this IC has a ground plate. Refer to How to
Replace the Flat Package IC 
(P.55).
(*4) Supplied IC is Flat Package Type.
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
 1
PNKM1129V3
CABINET 
BODY
PS-HB
2
K2ECYZ000001 JACK, DC
  
3
PQJJ1T039X
JACK, MODULAR
  
4
PNBC1303Z2
BUTTON, LOCATOR
ABS-HB
5
PNJT1046Z
CHARGE TERMINAL 
  
6
PNLA1030Z
ANTENNA  
 
7
PNYE1027Z
SPACER, ANTENNA  
8
PNKF1097Z1
CABINET COVER 
PS-HB
9
PQHA10023Z
RUBBER PARTS,FOOT CUSH-
ION
  
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
 
PCB1
PNWPG2521CAH MAIN P.C.BOARD ASS'Y
(RTL) 
  
(ICs)
IC3
C0DBAGZ00026 IC                               
IC7
C1CB00002906 IC (*1)                               
IC401
PNWITG6521EH IC (*1) (*3) (*4)                              
IC421
C3FBLY000048 IC                               
IC801
C1CB00001842 IC (*3)                               
(TRANSISTORS)
IC2
B1ZBZ0000065 TRANSISTOR(SI)                   
Q2
B1ABCE000009 TRANSISTOR(SI)                   
Q3
B1ACGP000007 TRANSISTOR(SI)                   
Q4
PQVTBF822T7 TRANSISTOR(SI)                   
Q5
2SD0874AS
TRANSISTOR(SI)                   
Q8
B1ADGE000004 TRANSISTOR(SI)                   
Q9
B1ADGE000004 TRANSISTOR(SI)                   
Q10
UNR92A6J0L
TRANSISTOR(SI)                   
Q24
UN9219J
TRANSISTOR(SI)                  S
Q25
UN9219J
TRANSISTOR(SI)                  S
Q421
2SC6054JSL
TRANSISTOR(SI)                   
(DIODES)
D3
B0EDER000009 DIODE(SI)                         
D10
MA8033
DIODE(SI)                        S
D21
PQVDRLZ20A
DIODE(SI)                        S
DA801
B0DDCD000001 DIODE(SI)                         
DA802
B0DDCD000001 DIODE(SI)                         
(COILS)
L1
PQLQXF330K
COIL                            S
L2
PQLQXF330K
COIL                            S
L3
G1C220M00037 COIL                            S
L801
G1C27NJ00010 COIL                             
L802
G1C3N0ZA0063 COIL                             
L803
G1C3N0ZA0063 COIL                             
(RESISTOR ARRAYS)
RA1
D1H810240004 RESISTOR ARRAY
 S
RA402
D1H410320002 RESISTOR ARRAY
  
RA80
D1H422120001 RESISTOR ARRAY
  
(VARISTOR)                      
SA1
J0LF00000026 VARISTOR (SURGE
ABSORBER)                      
  
(RESISTORS)
R3
PQ4R10XJ184 180k                            S
R4
PQ4R10XJ105 1M                              S
R5
PQ4R10XJ184 180k                            S
R6
PQ4R10XJ105 1M                              S
R8
ERJ3GEYJ104 100k                            S
R10
ERJ3GEYJ104 100k                            S
R12
ERJ2GEJ103
10k                             S
R13
ERJ2GEJ681
680
 S
R14
ERJ3GEYJ104 100k                            S
R15
PQ4R18XJ272 2.7k                            S
R16
ERJ2GEJ103
10k                             S
R17
ERJ2GEJ222
2.2k                            S
R18
ERJ2GEJ273X 27k                             S
R19
ERJ2GEJ822
8.2k                            S
R20
ERJ2GEJ272
2.7k                            S
R21
ERJ12YJ120
12
  
R22
ERJ12YJ270
27
  
R23
ERJ2GEJ104
100k                            S
R24
ERJ2GEJ473
47k                             S
75
KX-TG2521CAT/KX-TGA251RUT
R27
ERJ2GEJ104
100k                            S
R28
ERJ2GEJ474X 470k                            S
R29
ERJ2GE0R00
0
 S
R30
ERJ3GEYJ471 470
 S
R31
ERJ3GEYJ471 470
 S
R32
ERJ2GEJ823
82k                             S
R33
ERJ2GEJ102
1k                              S
R34
ERJ2GEJ823
82k                             S
R35
ERJ2GEJ102
1k                              S
R36
ERJ2GEJ124
120k                            S
R37
ERJ2GEJ392
3.9k                            S
R40
ERJ2GEJ271
270
 S
R42
PQ4R10XJ475 4.7M                            S
R43
PQ4R10XJ475 4.7M                            S
R55
ERJ1TYJ5R6U 5.6
  
R56
ERJ1TYJ5R6U 5.6
  
R57
ERJ6GEY0R00 0
 S
R75
ERJ2GEJ101
100
 S
R76
ERJ2GEJ102
1k                              S
R77
ERJ2GEJ103
10k                             S
R81
ERJ2GEJ332
3.3k                            S
R91
ERJ2GEJ470
47
 S
R92
ERJ2GEJ121
120
 S
R93
ERJ2GEJ472X 4.7k                            S
R95
ERJ2GEJ681
680
 S
R106
ERJ2GEJ221
220
 S
R109
ERJ2GEJ221
220
 S
R116
ERJ2GE0R00
0
 S
R117
ERJ2GEJ332
3.3k                             S
R124
PQ4R18XJ100 10
 S
R129
ERJ2GEJ103
10k                              S
R130
ERJ2GEJ102
1k                               S
R132
ERJ2GEJ681
680
 S
R133
ERJ2GEJ152
1.5k                             S
R135
ERJ2GEJ103
10k                              S
R424
ERJ2GEJ103
10k                              S
R425
ERJ2GEJ274
270k                             S
R426
ERJ2GEJ561
560
 S
R427
ERJ2GEJ561
560
 S
R428
ERJ2GEJ561
560
 S
R429
ERJ2GEJ332
3.3k                             S
R430
ERJ2GEJ100
10
 S
R511
ERJ2GE0R00
0
 S
R615
D0GA563ZA006 56k                               
R657
ERJ2GEJ103
10k                              S
R801
ERJ2GEJ223
22k                              S
R802
ERJ2GEJ121
120
 S
R803
ERJ2GEJ102
1k                               S
R804
ERJ2GEJ102
1k                               S
R805
ERJ2GEJ470
47
 S
R806
ERJ2GEJ221
220
 S
R807
ERJ2GEJ221
220
 S
(CAPACITORS)
C3
F1K2H681A008 680p
  
C4
F1K2H681A008 680p
  
C5
ECUV1C103KBV 0.01
  
C6
ECUV1C103KBV 0.01
  
C7
ECUV1C104KBV 0.1
  
C8
ECUV1C104KBV 0.1
  
C9
F1K2H681A008 680p
  
C10
F1K2H681A008 680p
  
C14
ECUE1A273KBQ 0.027
  
C19
ECUV1H122KBV 0.0012
  
C22
PQCUV1A105KB 1
  
C25
ECJ0EB1A473K 0.047
 S
C27
F2A1H100B132 10
  
C28
PQCUV1H333JC 0.033
 S
C32
F2A1C1010119 100
  
C36
F2A1A3310040 330
  
C42
ECUV1C103KBV 0.01
  
C43
ECUV1C103KBV 0.01
  
C51
ECUE1A104KBQ 0.1
  
C52
ECUE1H821KBQ 820p                              
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
C53
ECUE1H821KBQ 820p                              
C54
ECUE1A333KBQ 0.033
  
C55
ECUE1A823KBQ 0.082
  
C56
ECUV1C104KBV 0.1
  
C60
ECUE1A104KBQ 0.1
  
C61
ECUE1A104KBQ 0.1
  
C65
ECUE1H100DCQ 10p                               
C72
ECUE1A104KBQ 0.1
  
C74
F1G1H100A723 10p                               
C75
ECUE1A104KBQ 0.1
  
C84
ECUV1A225KB 2.2
  
C86
ECUV1A105KBV 1
  
C87
ECUE1A104KBQ 0.1
  
C88
ECUE1C103KBQ 0.01
  
C136
ECUE1H100DCQ 10p                               
C137
ECUE1H100DCQ 10p                               
C157
ECUE1H102KBQ 0.001
  
C168
F1G1H100A723 10p                               
C169
F1G1H100A723 10p                               
C170
F1G1H100A723 10p
  
C171
F1G1H100A723 10p
  
C305
ECUE0J105KBQ 1
  
C421
ECUE1C103KBQ 0.01
  
C422
ECUE1A104KBQ 0.1
  
C501
ECUE1H102KBQ 0.001
  
C614
ECUV1A105KBV 1
  
C615
ECUV1A105KBV 1
  
C616
ECUV1A105KBV 1
  
C617
ECUV1A105KBV 1
  
C623
ECUV1C105ZFV 1
  
C624
ECUV1H104ZFV 0.1
  
C625
ECUV1A105KBV 1
  
C630
F1G1H100A723 10p                               
C631
F1G1H100A723 10p                               
C802
F1G1H1R8A480 1.8p
  
C803
F1G1H1R5A480 1.5p
  
C804
F1G1H1R8A480 1.8p
  
C805
F1G1H3R3A480 3.3p
  
C806
F1G1H3R3A480 3.3p
  
C808
ECUE1A104KBQ 0.1
  
C809
F1G1H100A723 10p                               
C810
F1G1H2R2A480 2.2p
  
C811
F1G1H100A723 10p                               
C812
F1G1H100A723 10p                               
C813
F1G1H2R2A480 2.2p
  
C814
ECUE1H332KBQ 0.0033
  
C819
F1G1H100A723 10p                               
C820
F1G1HR50A480 0.5p
  
C822
F1G1H3R0A480 3p
  
C823
ECUE1H101JCQ 100p                              
C825
F1G1H100A723 10p                               
C826
F1G1H1R1A480 1.1p
  
C827
F1G1H100A723 10p                               
C834
F1G1H1R0A480 1p
  
C851
F1G1H7R0A480 7p
  
C853
F1G1H7R0A480 7p
  
C855
F1G1H100A723 10p                               
C856
ECUE1H101JCQ 100p                              
C857
F1G1H100A723 10p                               
C858
ECUE1H101JCQ 100p                              
C859
F1G1H100A723 10p                               
C860
F1G1H3R0A480 3p
  
(OTHERS)
E1
PNMC1013Z
CASE, MAGNETIC
SHIELD(*2)
  
X1
H0J103500027 CRYSTAL OSCILLATOR (*1)              
F1
K5H302Y00003 FUSE
  
SW1
K0H1BA000259 SPECIAL, SWITCH
  
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
76
KX-TG2521CAT/KX-TGA251RUT
15.4.2. Handset
15.4.2.1. Cabinet and Electrical Parts
15.4.2.2. Main P.C.Board Parts
Note:
(*1) Reconfirm the model No. written on the handset’s name
plate when replacing PCB100. Because the model No. of
the optional handset may differ from the included handset.
(*2) When replacing IC1, IC3 or X1, make the adjustment
using PNZZTG2521CA. Refer to Handset (P.52) of Things
to Do after Replacing IC or X'tal.
(*3) When removing E105, use special tools (ex. Hot air
disordering tool).
(*4) When replacing the handset LCD, See How to
Replace the Handset LCD
(P.44).
(*5) Backside of this IC has a ground plate. Refer to How to
Replace the Flat Package IC 
(P.55).
(*6) Supplied IC is Flat Package Type.
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
 
101
PNGP1087Z2
PANEL, LCD                   PMMA-HB
102
PNYE1026Z
TAPE, DOUBLESIDED
  
103
PNKM1123X2
CABINET BODY                   PS-HB
104
PNHS1072Z
SPACER,  RECEIVER NET               
105
PQHS10467Z
COVER, SPEAKER NET                    
106
L0AD02A00028 RECEIVER
  
107
PQHG10729Z
RUBBER PARTS, RECEIVER    
108
PNYE1027Z
SPACER, CUSHION LCD             
109
PNBC1003Z2
BUTTON, VOLUME KEY                  ABS-HB
110
PNJK1072V
KEYBOARD SWITCH 
  
111
PNHX1165Z
COVER, LCD SHEET                      
112
PNJT1027Z
CHARGE TERMINAL (L)                   
113
PNJT1026Z
CHARGE TERMINAL (R)                   
114
PQHR11315Z
GUIDE, SPEAKER
ABS-HB
115
L0AA02A00095 SPEAKER                           
116
PQHS10784Y
SPACER, SPEAKER NET            
117
PQJC10056W
BATTERY TERMINAL                 
118
PNKF1093Z1
CABINET COVER     
ABS-HB
119
PNHS1079Z
SPACER, BATTERY
  
120
PNKK1038Y1
LID, BATTERY 
ABS-HB
Safety
Ref. 
No.
Part No.
Part Name & Description Remarks
 
PCB100 PNWPGA251RUR MAIN P.C.BOARD ASS'Y
(RTL) (*1)
  
(ICs)
IC1
C1CB00002906 IC (BBIC (FLASH)) (*2)
(*5)(*6)   
  
IC3
PNWIGA250EXR IC (EEPROM) (*2)
  
IC801
C1CB00001842 IC (*5)  
  
(TRANSISTORS)
Q2
B1ADGE000004 TRANSISTOR(SI)                   
Q4
B1ADGE000004 TRANSISTOR(SI)                   
Q7
UN9219J
TRANSISTOR(SI)                  S
Q9
2SC6054JSL
TRANSISTOR(SI)                   
Q11
B1ADCF000161 TRANSISTOR(SI)                   
Q12
B1ADCF000161 TRANSISTOR(SI)                   
(DIODES)
D1
MA2YD2120L
DIODE(SI)                         
D7
MA2ZD0200L
DIODE(SI)                         
D13
MA8043M
DIODE(SI)                        S
D14
MA8043M
DIODE(SI)                        S
D21
MA8043M
DIODE(SI)                        S
D22
MA8043M
DIODE(SI)                        S
DA801
B0DDCD000001 DIODE(SI)                         
(LEDS)
LED21
B3AEB0000124 LED
  
LED22
B3AEB0000124 LED
  
LED23
B3AEB0000124 LED
  
(COILS)
F1
PQLQR2M5N6K COIL                            S
L801
G1C27NJ00010 COIL                             
L802
G1C3N6ZA0063 COIL                             
L803
G1C3N6ZA0063 COIL                             
(RESISTOR ARRAYS)
RA1
D1H810240004 RESISTOR ARRAY
 S
RA4
D1H433220001 RESISTOR ARRAY
  
RA32
EXB28V151JX RESISTOR ARRAY
  
RA40
EXB28V103
RESISTOR ARRAY
  
RA61
D1H422120001 RESISTOR ARRAY
  
RA800
D1H410220001 RESISTOR ARRAY
  
(IC FILTERS)
L46
J0JDC0000045 IC FILTER                         
L47
J0JDC0000045 IC FILTER                         
(RESISTORS)
R3
ERJ2GEJ102
1k                              S
R7
ERJ2GEJ122
1.2k                            S
R8
ERJ2GEJ101
100
 S
R20
ERJ2GEJ100
10
 S
R23
ERJ2GEJ102
1k                              S
R27
ERJ2GEJ821
820
 S
R28
ERJ2GEJ821
820
 S
R30
ERJ3GEYJ152 1.5k                            S
R31
ERJ2GEJ101
100
 S
R45
ERJ6RSJR10V 0.1
  
R50
ERJ2GEJ103
10k                             S
R51
ERJ2GEJ471
470
 S
R52
ERJ2GEJ102
1k                              S
R53
ERJ2GEJ332
3.3k                            S
R54
ERJ2GEJ103
10k                             S
R55
ERJ2GEJ102
1k                              S
R63
ERJ2GEJ101
100
 S
R64
ERJ2GEJ103
10k                             S
R66
ERJ2GEJ102
1k                              S
R73
ERJ2GEJ820
82
 S
R74
ERJ2GEJ820
82
 S
R203
D0GA563ZA006 56k                              
R215
ERJ2GE0R00
0
 S
R225
ERJ2GE0R00
0
 S
R231
ERJ2GEJ824
820k                            S
R232
ERJ2GEJ434X 430k                            S
R249
ERJ2GE0R00
0
 S
R330
ERJ2GEJ105X 1M                              S
R331
ERJ2GEJ273X 27k                             S
R332
ERJ2GEJ273X 27k                             S
R801
ERJ2GEJ681
680
 S
R802
ERJ2GEJ101
100
 S
R805
ERJ2GEJ470
47
 S
R806
ERJ2GEJ221
220
 S
R807
ERJ2GEJ221
220
 S
(CAPACITORS)
C1
F2A0J3310067 330
  
C2
F2A0J3310067 330
  
C5
ECUV1A105KBV 1
  
C10
ECUV1A225KB 2.2
  
C11
ECUE1A104KBQ 0.1
  
C12
PQCUV0J106KB 10
  
C13
ECUE1A104KBQ 0.1
  
C17
ECUE1H100DCQ 10p                              
C18
ECUE1H100DCQ 10p                              
C35
ECUE1H560JCQ 56p                              
C40
ECUE1A104KBQ 0.1
  
C43
ECUE1H100DCQ 10p                              
C44
ECUE1A104KBQ 0.1
  
C45
ECUE1A104KBQ 0.1
  
C46
ECUE1H100DCQ 10p                              
C47
ECUV1A105KBV 1
  
C49
ECUV1A105KBV 1
  
C50
ECUV1A105KBV 1
  
C51
ECUV1A105KBV 1
  
C52
PQCUV0J106KB 10
  
C53
PQCUV0J106KB 10
  
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