Panasonic KX-T7565RU Service Manual ▷ View online
(Procedure 1
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(Procedure 1
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4)
4.3. HOW TO REMOVE THE MAIN BOARDS
(1) Remove the 6 screws A.
(2) Remove the main board, speaker, H/S jack and mic.
(2) Remove the main board, speaker, H/S jack and mic.
4.4. HOW TO REMOVE THE LCD BLOCK
(1) Pull out the flat cable. (See Fig. 1)
(2) Remove the LCD block. (See Fig.2)
(2) Remove the LCD block. (See Fig.2)
5
KX-T7565RU
5 IC DATA
5.1. IC1
Name
Pin
Dir.
Pull Up
Type
Io
Act.
Block
MHz
Descriptions
DB3
2
bidir
---
TTL
8.0mA
high
PT5B03
2
Data Bus [3]
DB2
3
bidir
---
TTL
8.0mA
high
PT5B03
2
Data Bus [2]
DB1
4
bidir
---
TTL
8.0mA
high
PT5B03
2
Data Bus [1]
DB0
5
bidir
---
TTL
8.0mA
high
PT5B03
2
Data Bus [0]
ADR1
6
input
12-38k
TTL
---
high
PT5D01U
2
Address Bus [1]
ADR0
7
input
12-38k
TTL
---
high
PT5D01U
2
Address Bus [0]
CSN
8
input
---
TTL
---
low
PT5D01
1
Chip Select
REN
10
input
12-38k
TTL
---
low
PT5D01U
2
Read Enable Command
WEN
9
input
12-38k
TTL
---
low
PT5D01U
2
Write Enable Command
RST
63
input
---
CMOS schmidt
---
high
PC5D21
0.01
Asynchronous Reset Input
INT0N
11
output
---
CMOS
2.0mA
low
PC5O01
0.01
Interrupt Request
INT1N
12
output
---
CMOS
2.0mA
low
PC5O01
0.01
Interrupt Request
DR0
38
input
---
CMOS
---
low
PC5D01
0.6
Dpits Receive Data [1]
DR1
39
input
---
CMOS
---
low
PC5D01
0.6
Dpits Receive Data [0]
DX0
40
output
---
CMOS
4.0mA
low
PC5O02
0.6
Dpits Transmit Data [1]
DX1
41
output
---
CMOS
4.0mA
low
PC5O02
0.6
Dpits Transmit Data [0]
CK512K
37
output
---
CMOS
2.0mA
high
PC5O01
0.6
Dpits Bit Rate Clock
SR0
19
input
12-38k
TTL
---
high
PT5D01U
0.1
Serial Receive Data Stream [0]
SR1
20
input
12-38k
TTL
---
high
PT5D01U
0.1
Serial Receive Data Stream [1]
SX
21
output
---
CMOS
4.0mA
high
PC5O02
0.1
Serial Transmit Data Stream
CK2M
18
output
---
CMOS
4.0mA
high
PC5O02
2.1
Serial Stream Clock
EP0
13
output
---
CMOS
2.0mA
high
PC5O01
0.01
not used
EP1
14
output
---
CMOS
2.0mA
high
PC5O01
0.01
not used
EP2
15
output
---
CMOS
2.0mA
high
PC5O01
0.01
External Channel Pulse [2]
EP3
16
output
---
CMOS
2.0mA
high
PC5O01
0.01
not used
PI
61
input
---
CMOS schmidt
---
high
PC5D21
0.01
not used
NI
62
input
---
CMOS schmidt
---
high
PC5D21
0.01
not used
CLM0
43
output
---
CMOS
4.0mA
high
PC5O02
0.01
LED Column Drive [0]
CLM1
44
output
---
CMOS
4.0mA
high
PC5O02
0.01
LED Column Drive [1]
CLM2
45
output
---
CMOS
4.0mA
high
PC5O02
0.01
LED Column Drive [2]
CLM3
46
output
---
CMOS
4.0mA
high
PC5O02
0.01
LED Column Drive [3]
CLM4
47
output
---
CMOS
4.0mA
high
PC5O02
0.01
LED Column Drive [4]
CLM5
48
output
---
CMOS
4.0mA
high
PC5O02
0.01
LED Column Drive [5]
NROW0
50
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [0]
NROW1
51
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [1]
NROW2
52
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [2]
NROW3
53
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [3]
6
KX-T7565RU
NROW4
54
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [4]
NROW5
55
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [5]
NROW6
56
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [6]
NROW7
57
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [7]
NROW8
58
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [8]
NROW9
59
output
---
CMOS
4.0mA
low
PC5O02
0.01
LED Row Drive [9]
IP0
27
input
12-38k
CMOS
---
high
PC5D01U
0.01
not used
IP1
28
input
12-38k
CMOS
---
high
PC5D01U
0.01
not used
IP2
29
input
12-38k
CMOS
---
high
PC5D01U
0.01
not used
IP3
30
input
12-38k
CMOS
---
high
PC5D01U
0.01
not used
OP0
23
output
---
CMOS
4.0mA
high
PC5O02
0.01
LCD Vol.control 1
OP1
24
output
---
CMOS
4.0mA
high
PC5O02
0.01
LCD Vol.control 2
OP2
25
output
---
CMOS
4.0mA
high
PC5O02
0.01
not used
OP3
26
output
---
CMOS
4.0mA
high
PC5O02
0.01
not used
CK2K
22
output
---
CMOS
4.0mA
high
PC5O02
0.2
not used
CK16M
36
output
---
CMOS
2.0mA
high
PC5O01
16.4
Master Clock Out
OSI
33
input
---
Analog
---
---
PC5X02
16.4
X´tal In (XIN)
OSO
34
output
---
Analog
---
---
PC5X02
16.4
X´tal Out (XOUT)
N.C.
32
---
---
---
---
---
---
---
not used
N.C.
42
---
---
---
---
---
---
---
not used
N.C.
60
---
---
---
---
---
---
---
not used
VDD1
1
vdd
---
---
---
---
---
---
Vdd (5V)
VDD2
31
vdd
---
---
---
---
---
---
Vdd (5V)
VDD3
49
vdd
---
---
---
---
---
---
Vdd (5V)
VSS1
17
vss
---
---
---
---
---
---
Vss (GND)
VSS2
35
vss
---
---
---
---
---
---
Vss (GND)
VSS3
64
vss
---
---
---
---
---
---
Vss (GND)
7
KX-T7565RU
5.2. IC2
Classification
Terminal
Pin No.
Input/Output
Function
Power supply
Vcc
7
-
Power supply terminal
GND
3
-
Ground terminal
CVcc
64
-
Connect to the Vcc terminal
Vtref
61
-
DTMF reference level voltage terminal
Connect to the Vcc terminal
Connect to the Vcc terminal
Oscillation
X1
1
Input
Input/Output terminal to the main oscillator.
X2
2
Output
Connect to the ceramic oscillator.(8MHz)
OSC1
5
Input
No use
OSC2
4
Output
No use
Reset
RESET
8
Input
Reset terminal of MCU (Active Low)
Test
TEST
6
Input
No use
I/O port
P20
9
Output
DTMF tone control
P24
13
Output
Handset tone control
P25
14
Output
SP-Phone tone control
P26
15
Output
Ringer tone control
P27
16
Input
Hook Switch
SCK1
10
Output
LCD serial clock
P22
11
Output
LCD write enable command
SO1
12
Output
LCD data
P17
17
Input
Interrupt request from G/A (IC1)
P16
18
Input
Interrupt request from G/A (IC1)
P15
19
Output
Reset terminal of G/A (IC1) (Active Hi)
P14
20
Output
KEY communication output 1
P13
21
Output
KEY communication output 2
P12
22
Output
KEY communication output 3
P11
23
Output
KEY communication output 4
P10
24
Output
KEY communication output 5
P50
28
Input
KEY communication input 0
P51
29
Input
KEY communication input 1
P52
30
Input
KEY communication input 2
P53
31
Input
KEY communication input 3
P54
32
Input
KEY communication input 4
P55
33
Input
KEY communication input 5
P56
34
Input
KEY communication (HOLD key)
P57
35
Input
No use
PA3
25
Output
W.OHCA control
8
KX-T7565RU
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