Panasonic KX-TCA151AXM Service Manual page 78

KX-TCD530AXM / KX-TCA151AXM
21 BLOCK DIAGRAM (CORDLESS HANDSET)
SPEAKER
RECEIVER
MIC
Headset
JACK
+
CHARGE
CHARGE
CONTACTS
CHARGE
J1
BATTERY
TERMINAL
J2
LCD
96X64
dot
LCD-BACK LIGHT
(Blue)
KEY-BACK LIGHT
(Green)
SP-PHONE LED
(Red)
CHARGE LED
(Red and Green)
AMPLIFIER
IC2
SP_AMP Control
CHARGE
CIRCUIT
CHARGE
Q4, Q5, Q9
CHARGE DETECT
R7
D7
6
EEPROM
IC10 5
SWITCHED
SUPPLY
DC/DC-SWITCH
Q1
2.7V
4.0V
2.7V
Q3
11
AOUT
31 23 SCLK
MIDI
39 21 SRQ
41 20 ERQ
IC4
33, 34 30 CLK
LOGIC IC
IC5
6.00MHz
70
Speech
69
Decoding
D/A
68
Speech
Encoding
76
A/D
ADPCM
Codec
Analog
Filter
Front
End
3
55
54
SCL
41
SDA
42
65
VBAT1
51
CPU
62
1.8V
63
Q2
CS 2 46
RESET 47
AO 1
SI 50
SCL 49
49 24 4
KX-TCA151AXM BLOCK DIAGRAM (CORDLESS HANDSET)
78
Burst
17
Decoding
19
Burst
Encoding
16
RF
Interface
20
DSP BMC
12
11
53
35, 36, 37, 38
ROWS
28~32, 40
BBIC
IC1
ANT
RXDA
TXDA
RF
Module
RSSI
IC3
9 SYRI
SYEN
XTAL X1
10.368
MHz
BATTERY
ON SWITCH
KEYPAD
COLUMNS