Read Panasonic KX-TCA355RU Service Manual online
6
KX-TCA355RU
4 Technical Descriptions
4.1.
Block Diagram (Handset)
12
CPU
IC201
BBIC
A/D
D/A
Analog
Front
End
Front
End
Speech
Encoding
Encoding
Speech
Decoding
Decoding
DSP
ADPCM
Codec
Filter
Codec
Filter
BMC
RF
Interface
Interface
MIC
SYRI
RSSI
SYEN
RXDA
TXDA
19
17
16
9
20
To RF
Block
Block
BATTERY
TERMINAL
TERMINAL
BATTERY +
CHARGE
CIRCUIT
CIRCUIT
CHARGE
CHARGE DETECT
CHARGE
CONTACTS
CONTACTS
CHARGE
3.6V
VBAT2
11
XTAL
10.368
BATTERY
MHz
KEYPAD
COLUMNS
ROWS
LCD
96X64
dot
dot
ON SWITCH
55
54
53
64
KX-TCA355
RU BLOCK DIAGRAM (HANDSET)
47
46
63
62
49 24
23 SCLK
30 CLK
21 SRQ
20 ERQ
31
AOUT
39
4
1
50
RECEIVER
SPEAKER
69
70
68
76
28~32, 40
35, 36, 37, 38
Burst
Encoding
Encoding
Burst
Decoding
Decoding
+
CHARGE
D102
49
RESET
CS 2
AO
SI
SCL
AMPLIFIER
IC401
Headset
JACK
SP_AMP Control
3
MIDI
IC301
LOGIC IC
LCD-BACK LIGHT
(Blue)
(Blue)
KEY-BACK LIGHT
(Green)
(Green)
CHARGE LED
(Red and Green)
(Red and Green)
6.00MHz
IC303
Q101,Q102,Q103
R7,R101,R103,R117
R7,R101,R103,R117
Q104
Q105
X100
2.75V
2.7V
1.85V
21 SYDA
22 SYCL
22 SYCL
BATTERY -
X101
BATT
VIB
33, 34
37
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