DOWNLOAD Panasonic KX-TCD951EB / KX-TCD955EC Service Manual ↓ Size: 1.94 MB | Pages: 61 in PDF or view online for FREE

Model
KX-TCD951EB KX-TCD955EC
Pages
61
Size
1.94 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DECT
File
kx-tcd951eb-kx-tcd955ec.pdf
Date
PREV: Panasonic KX-TCD951BXB Service Manual

Panasonic KX-TCD951EB / KX-TCD955EC Service Manual ▷ View online

KX-TCD951EB/KX-TCD955EC
KX-TCD951EB/KX-TCD955EC
17
1
2
3
4
5
6
7
8
9
10
11
12
G
F
E
D
C
B
A
H
SCHEMATIC DIAGRAM (BASE UNIT)
Note:
1. DC voltage measurements are taken with electronic
voltmeter from negative voltage line.
Important Safety Notice:
Components identified by       mark have special characteristics
impotant for safety. When replacing any of these components, use
only manufacturer's specified parts.
This schematic diagram may be modified at
any time with development of new technology.
KX-TCD951EB/KX-TCD955EC
KX-TCD951EB/KX-TCD955EC
18
1
2
3
4
5
6
7
8
9
10
11
12
G
F
E
D
C
B
A
H
Note:
1. DC voltage measurements are taken with electronic
voltmeter from negative voltage line.
This schematic diagram may be modified at
any time with development of new technology.
SCHEMATIC DIAGRAM (HANDSET)
19
KX-TCD951EB/KX-TCD955EC
BLOCK DIA
GRAM RF UNIT (B
ASE UNIT)
Fig. 17
Doubler
BPF
1.89GHz
TR Switch
Ant. Switch
RF
Amp
112.32MHz
BPF
BPF=Bandpass Filter
LPF=Low Pass Filter
Mixer
Phase-Lock-Loop
Tx
Buffer
PA
Switch
P.A.
SAW
BPF
IF
Amp
RSSI
DC
Comp
IF
Amp
Det.
VCO
Buff.
DC Contr.
Rx/Tx
3V
Reg.
3V
Data
LPF
945MHz
1.89GHz
10.368MHz
4V-FILT
SLICE OUT
31
SLICE CTRL
30
RSSI
32
SYS CLOCK
34
PLL ENABLE
22
PLL DATA
21
PLL CLOCK
20
PLL PD
12
Vcc OC
18
RF ON
8
Rx DATA
29
Tx DATA
19
Vcc PA (4V)
5
,
4
PLL PWR DWN
17
Tx/Rx SWITCH
2
ANT SW2
40
ANT SW1
3
PA RAMP
39
RF1
49
RF2
42
RF2
42
GND
43
GND
44
GND
45
GND
46
GND
47
GND
48
RF1
49
GND
15
NC
14
NC
13
PLL PD
12
NC
11
GND
10
GND
9
RF ON
8
GND
7
GND
6
Vcc PA
5
Vcc PA
4
ANT SW1
3
Tx/Rx SWITCH
2
GND
1
GND
26
GND
27
GND
28
Rx DATA
29
SLICE CTRL
30
SLICE OUT
31
RSSI
32
GND
33
SYS CLOCK
34
GND
35
GND
36
GND
37
GND
38
PA RAMP
39
ANT SW2
40
GND
41
GND
25
GND
24
GND
23
PLL ENABLE
22
PLL DATA
21
PLL CLOCK
20
Tx DATA
19
Vcc OC
18
PLL PWR DWN
17
NC
16
20
KX-TCD951EB/KX-TCD955EC
Fig. 18
BLOCK DIAGRAM BASEBAND SECTION 
AND LINE INTERF
A
C
E
(BASE UNIT)
85
IC103
EEPROM
Micro-
controller
IC102
Flash
PROM
27/26
66
DATA
14
6
5
7
32
SYS-CLK
Tx-DATA
Rx-DATA
PLL-CLK
RST
SERIAL
INPUT/OUTPUT
WR
OE
30
CE
RESET
19
11
25
20
22
21
X101
D104
DAC
10.368MHz
Ear.
Amp
DAC
ADC
Clock
+Data
Recov
Gaus
Filter
RSSI
ADC
DTMF
Gen.
15
92
83
Clock
Gen.
BMC
IC101
BBIC
44
32
40
68
28
PAUSE-DIAL
46
EARTH
39
HOOK
34
RING
41
SLICE-OUT
RSSI
24
23
PLL-DAT
PLL-ENABLE
7
PLL-PD
5
4
RFON
PA-AMP
3
Tx/Rx-SW
2
ANT-SW1
8
ANT-SW2
Locator
63
62
58
RXAF
TXAF
HOOK
60
T13
J103
J102
Serial
Data
Clock
Mic.
Amp
Line
Amp
Earth
Recall
RLY1
Buf.
T2
Buf.
T1
D8
A
B
A
4
3
1
5
2
6
J1
Tel.
Line
B
E
S
T8, T9
Hook
Switch
Bridge
Rect.
IC4
RING
EARTH
OPTION
IC5
CLIP
Amp
CLIP
LINE_SENSE
PULSE_DIAL
REV_POL
Div
R5, R6
Div
R7, R8
Bell
Det.
Off-Hook
LED
T102
Buf
D103
D102
29
Caller ID
LED
T103
Buf
T101
Buf
Buzzer
ADDRESS
Shunt
IC1
Charge
Contacts
IC6
VUNREG
+4V
+3V
RESET
IC7
T14, T15
3.0V
Reg.
T16
Charge
Det.
4V
Reg.
Charge
Circuit
1
2
3
6
5
4
J2
AC
Adaptor
Charge
LED
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