Panasonic KX-TG2560B / KX-TG2560S Service Manual ▷ View online
KX-TG2560B/KX-TG2560S
57
VR202
C233
IC201
25
MIC IN2
25
MIC IN2
R229
RF CIRCUIT
AF
AF
SPEAKER
HEADSET JACK
CN201
SP-AMP
SP-MUTE
SP SW
SP=L
HS=H
HS=H
IC201
53
56
9
3
5
10
11
21
22
EXP
EVOL
CPU
Q206
R222
R226
( )
5
4
3
2
1
4
3
2
1
R231
SP1
SP2
MIC2
MIC1
GND
R216
R208
VR201
RF-CIRCUIT MOD
L: MIC IN1
H: MIC IN2
H: MIC IN2
CPU TX DATA
MIC
IC201
24
25
25
28
23
22
19
18
17
9 SPSW
COMPRESSER
MIC
AMP
AMP
MIC IN1
MIC IN2
MIC IN2
LPF
C259
CN201
Q206
( )
R222
R226
5
4
3
2
1
4
3
2
1
R231
SP1
SP2
MIC2
MIC1
GND
R216
5. Sending Signal
The audio signal from the microphone is amplified by Mic Amp, compressor, and 3 kHz LPF built into IC201. It is then mixed with
the TX DATA signal from the CPU, the FM modulation is adjusted by VR201, and input to the modulator in the RF Circuit.
the TX DATA signal from the CPU, the FM modulation is adjusted by VR201, and input to the modulator in the RF Circuit.
Circuit Diagram
Circuit Diagram
KX-TG2560B/KX-TG2560S
58
C208
Q204
R202
R239
D204
R217
50
+
C
D203
Q203
R206
R207
R901
R911
IC201
R205
44
45
35
R910
34
37
C205
C204
C218
C219
Power
Down
Down
Reset
30 ms
30 ms
Batt
Low
Low
63 POWER DOWN
8 RESET
IC901
34 CHARGE
62 BATT LOW
35 ID CODE
7. Reset/Power Down/Battery Low/ID
When the battery is installed in the handset, the reset circuit consisting of R207, C208, and inside IC201 functions, inputting a
reset signal to the CPU. This ensures that the unit will operate normally without the user's needing to switch the power off and on.
When the voltage from the batteries drops to 3.5 V, 3.5 V voltage detector inside IC201 operates and inputs a battery low signal
to the CPU. This causes the Recharge LED to turn on. If voltage continues to drop and reaches 3.2 V, 3.2 V voltage detector
inside IC201 operates and outputs a power down signal to the CPU. This causes power to be cut off automatically and prevents
the battery from over discharging. Q203 is a charge detector that informs the CPU whether or not the handset is currently being
charged.
During charging, ID data is sent from the base unit. Q204 receives this ID data and sends it to the CPU.
reset signal to the CPU. This ensures that the unit will operate normally without the user's needing to switch the power off and on.
When the voltage from the batteries drops to 3.5 V, 3.5 V voltage detector inside IC201 operates and inputs a battery low signal
to the CPU. This causes the Recharge LED to turn on. If voltage continues to drop and reaches 3.2 V, 3.2 V voltage detector
inside IC201 operates and outputs a power down signal to the CPU. This causes power to be cut off automatically and prevents
the battery from over discharging. Q203 is a charge detector that informs the CPU whether or not the handset is currently being
charged.
During charging, ID data is sent from the base unit. Q204 receives this ID data and sends it to the CPU.
Circuit Diagram
6. Headset Circuit
After setting headset into headset jack (CN201), pin 3 of CN201 becomes OPEN and Q206 becomes OFF, input of 9 pin of
IC201becomes L
IC201becomes L
→
H. Therefore switch inside IC201 changes, a signal that input from headset mic to pin 25 of IC201 passes
through mic amp of IC201, is inputted to modulator of RF Circuit as signal from handset mic.
On the other hand, received audio signal is outputted from headset speaker. At this time, pin 4 of CN201 becomes OPEN,
speaker route of handset is cut off, and Amp of IC201 changes to output gain setting for headset.
On the other hand, received audio signal is outputted from headset speaker. At this time, pin 4 of CN201 becomes OPEN,
speaker route of handset is cut off, and Amp of IC201 changes to output gain setting for headset.
KX-TG2560B/KX-TG2560S
65
Ref . No.
Part No.
Pcs/Set
Base Unit
MAIN P.C.BOARD PARTS
Notes:
1. The marking (RTL) indicates that the Retention Time is limited f or this item.
PCB1
PQWPTG2570BH
MAIN P.C.BOARD ASS'Y (RTL)
1
Af ter the discontinuation of this assembly in production, the item will
continue to be av ailable f or a specif ic period of time. The retention period
of av ailability is dependent on the ty pe of assembly , and in accordance
(ICS)
with the laws gov erning part and product retention. Af ter the end of this
IC301
PQVIBA06FPE2
IC
1
period, the assembly will no longer be av ailable.
2. Important saf ety notice.
IC401 AN6137SB
IC
1
Components identif ied by the mark special characteristics important
f or saf ety .
IC701
PQVI16559ADB
IC
1
When replacing any of these components, use only manuf acturer's specif ied
IC702
PQWITG2570BH
IC ASS'Y
1
parts.
3. The S mark indicates serv ice standard parts and may dif f er f rom production
parts.
(TRANSISTORS)
4. RESISTORS & CAPACITORS
Q101
2SA1625
TRANSISTOR(SI)
1
Unless otherwise specif ied.
Q102
PQVT2N6517CA
TRANSISTOR(SI)
1
All resistors are in ohms (
Ω
) k=1000
Ω
, M=1000k
Ω
Q103
2SD601R
TRANSISTOR(SI)
S
1
All capacitors are in MICRO FARADS(
µ
F ) P=
µµ
F
Q105
2SC2120
TRANSISTOR(SI)
1
*Ty pe &Wattage of Resistor
Q106
2SD601R
TRANSISTOR(SI)
S
1
Ty pe
ERC:Solid
ERX:Metal Film
PQRD:Carbon
Q201
UN5216
TRANSISTOR(SI)
1
ERD:Carbon
ERG:Metal Oxide
PQRQ:Fuse
PQ4R:Chip
ERO:Metal Film
ERF:Wire Wound
Q301
2SD601R
TRANSISTOR(SI)
S
1
Wattage
Q303
UN5113
TRANSISTOR(SI)
1
10,16,18:1/8W
14,25,S2:1/4W
12,50,S1:1/2W
1:1W
2:2W
5:5W
Q311
2SD2136
TRANSISTOR(SI)
1
Q312
2SD1994A
TRANSISTOR(SI)
1
ECFD:Semi-Conductor
ECCD,ECKD,PQCBC,PQVP : Ceramic
Q313
2SD601R
TRANSISTOR(SI)
S
1
ECQS:Sty rol
ECQM,ECQV,ECQE,ECQU,ECQB : Poly ester
PQCBX,ECUV:Chip
ECEA,ECSZ,ECOS : Electroly tic
Q401
2SD1819A
TRANSISTOR(SI)
1
ECMS:Mica
ECQP : Poly propy lene
Q402
2SD1819A
TRANSISTOR(SI)
1
Voltage
Q411
UN5213
TRANSISTOR(SI)
1
ECQ Ty pe
ECQG
ECSZ Ty pe
Others
ECQV Ty pe
Q700
2SD601R
TRANSISTOR(SI)
S
1
1H: 50V
05: 50V
OF:3.15V
OJ :6.3V
1V :35V
Q751
UN5213
TRANSISTOR(SI)
1
2A:100V
1:100V
1A:10V
1A :10V
50,1H:50V
Q752
2SD1819A
TRANSISTOR(SI)
1
2E:250V
2:200V
1V:35V
1C :16V
1J :63V
Q753
UN5213
TRANSISTOR(SI)
1
2H:500V
OJ:6.3V
1E,25:25V
2A :100V
Q761
UN5213
TRANSISTOR(SI)
1
Q902
2SD2137
TRANSISTOR(SI)
1
Ref . No.
Part No.
Part Name & Description
Pcs
Q903
2SA1309
TRANSISTOR(SI)
1
Q904
UN5213
TRANSISTOR(SI)
S
1
CABINET AND ELECTRICAL PARTS
1
PQAS5P01Y
SPEAKER
1
(DIODES)
2
PQBX10326Z1
BUTTON, VOLUME
S
1
D101
PQVDS1ZB40F1
DIODE(SI)
S
1
3
PQGB7Y
BADGE
1
D102
MA4180
DIODE(SI)
S
1
4
PQGP10153Z1
LCD PANEL
S
1
D105
MA153
DIODE(SI)
1
5
PQGT13761Z
NAME PLATE (KX-TG2570S)
1
D106
MA4020
DIODE(SI)
1
6
PQHR10667Y
LED LENS
1
7
PQJT10154Z
BATTERY TERMINAL
1
D120
MA111
DIODE(SI)
1
8
PQMS10008Z
SPEAKER HOLDER
1
D121
MA111
DIODE(SI)
1
9
PQMS10009Z
SPEAKER HOLDER
1
10
PQMS10010Z
SPEAKER HOLDER
1
D301
MA4051
DIODE(SI)
1
11
PQSA10086Z
ANTENNA (900M)
1
D303
PQVDS5688G
DIODE(SI)
1
12
PQSA10087Z
ANTENNA (2.4G)
1
D304
PQVDS5688G
DIODE(SI)
1
13
PQSX10105Z
RUBBER SWITCH, TAM
1
D305
PQVDS5688G
DIODE(SI)
1
14
PQY F10150W1
LOWER CABINET (KX-TG2570B)
S
1
D306
MA4300
DIODE(SI)
1
14
PQY F10150T1
LOWER CABINET (KX-TG2570S)
S
1
15
PQY M10079Z1
UPPER CABINET (KX-TG2570B)
S
1
D311
MA4300
DIODE(SI)
1
15
PQY M10079Z2
UPPER CABINET (KX-TG2570S)
S
1
D312
MA4300
DIODE(SI)
1
D313
MA4300
DIODE(SI)
1
D314
MA4039
DIODE(SI)
1
D411
MA153
DIODE(SI)
1
D701
MA111
DIODE(SI)
1
D702
MA111
DIODE(SI)
1
D710
MA111
DIODE(SI)
1
D711
MA111
DIODE(SI)
1
Part Name & Description
KX-TG2560B/KX-TG2560S
66
Ref . No.
Part No.
Pcs/Set
Ref . No.
Part No.
Pcs/Set
D750
MA8039
DIODE(SI)
1
PO101
PQRPAR390N
THERMISTOR
S
1
X701
PQVCK4096N9Z
CRY STAL OSCILLATOR
1
D900
PQVDEC10
DIODE(SI)
1
D902
PQVDS5688G
DIODE(SI)
1
D904
MA4043
DIODE(SI)
1
(LEDS)
LED701
PQVDPY 1112H
LED
S
1
LED702
PQVDSML210LT
LED
1
LED703
PQVDSML210LT
LED
1
LED704
PQVDSML210LT
LED
1
(COILS)
L101
PQLQXF330K
COIL
1
L102
PQLQXF330K
COIL
1
(RESISTORS)
L302
PQLQXH181K
COIL
1
R101
ERDS2TJ825
8.2M
1
L304
PQLQR2KA213
COIL
1
R102
PQ4R10XJ335
3.3M
1
R103
PQ4R10XJ473
47
1
L311
PQLQXF100K
COIL
1
R104
PQ4R10XJ104
100k
1
L312
PQLQZM330K
COIL
1
R105
ERDS2TJ472
4.7k
1
L313
PQLQXF100K
COIL
1
R106
PQ4R10XJ394
390k
1
R107
PQ4R10XJ394
390k
1
L700
PQLQR2KA213
COIL
1
R108
ERJ3GEY J125
1.2M
1
L701
PQLQR2KA213
COIL
1
R109
PQ4R10XJ472
4.7k
1
L702
PQLQR2KA213
COIL
1
L704
PQLQR2KA213
COIL
1
R112
PQ4R10XJ000
0
1
R113
PQ4R10XJ182
1.8k
1
L800
PQLQXF100K
COIL
1
R114
PQ4R10XJ820
82
1
L801
PQLQXF100K
COIL
1
R115
ERDS1TJ330
33
S
1
R117
PQ4R10XJ102
1k
1
R118
PQ4R10XJ153
15k
1
(CONNECTORS)
CN102
PQJP24B81Z
CONNECTOR
1
R120
ERJ3GEY J154
150k
1
R121
PQ4R10XJ154
150k
1
CN301
PQJP03B70Z
CONNECTOR
1
R122
ERJ3GEY J562
5.6k
1
R123
ERJ3GEY J473
47k
1
R124
ERJ3GEY J153
15k
1
(JACKS)
R125
PQ4R10XJ182
1.8k
1
TEL-JA
PQJJ1TA15Z
JACK
S
1
DC-JAC
PQJJ1B4Y
JACK
1
R150
ERDS2TJ4R7
4.7
1
R201
ERJ3GEY J103
10k
1
(VARIABLE RESISTORS)
VR401
EVN5ESX50B54
VARIABLE RESISTOR
1
R301
PQ4R10XJ563
56k
1
VR402
EVN5ESX50B24
VARIABLE RESISTOR
1
R302
PQ4R10XJ561
560
1
R306
ERJ3GEY J104
100k
1
(SURGE ABSORBERS)
R311
PQ4R10XJ000
0
1
SA101
PQVDDSS301L
SURGE ABSORBER
1
R312
ERJ3GEY J473
47k
1
SA102
PQVDDSS301L
SURGE ABSORBER
1
R313
ERDS2TJ103
10k
1
R314
ERDS2TJ331
330
1
R316
ERDS1TJ560
56
S
1
(RESISTOR ARRAY S)
R317
ERDS1TJ560
56
S
1
RA1
EXRV8V221JV
RESISTOR ARRAY , 220
1
R318
PQ4R10XJ682
6.8k
1
RA2
EXRV8V221JV
RESISTOR ARRAY , 220
1
R319
ERJ3GEY J104
100k
1
RA3
EXRV8V221JV
RESISTOR ARRAY , 220
1
RA4
EXRV8V000
RESISTOR ARRAY , 0
1
R320
ERDS2TJ102
1k
1
RA5
EXRV8V000
RESISTOR ARRAY , 0
1
R321
ERJ3GEY J104
100k
1
R322
ERDS1TJ560
56
S
1
R323
ERDS2TJ331
330
1
(OTHERS)
E1
PQHR10668Z
RF HOLDER
1
R401
ERJ3GEY 0R00
0
1
E2
PQHR10679Z
LCD HOLDER
1
R402
ERJ3GEY 0R00
0
1
E3
PQJM122Z
MICROPHONE
1
R403
ERJ3GEY J101
100
1
E4
PQMG10023Z
MIC CUSHION
1
R404
ERJ3GEY J101
100
1
E5
PQMC10333Z
SHIELD COVER
1
R405
ERJ3GEY J102
1k
1
E6
PQMC10334Z
SHIELD COVER
1
R406
ERJ3GEY 0R00
0
1
LCD
PQADHLC7124
LCD
1
R407
ERJ3GEY J104
100k
1
Part Name & Description & Value
Part Name & Description
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