Panasonic KX-TDA0177XJ / KX-TDA0177X (serv.man2) Service Manual ▷ View online
57
KX-TDA0177XJ / KX-TDA0177X
12 Appendix Information of Schematic Diagram
Note:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. This schematic diagram may be modified at any time with the development of new technology.
58
KX-TDA0177XJ / KX-TDA0177X
13 Exploded View and Replacement Parts List
13.1. IC Data
13.1.1. IC14 (ASIC)
ADDRESS
PIN No.
SIGNAL NAME
I/O
ACT
DESCRIPTIONS
NOTES
xxx1180
P07
Used as "DTMF R OUTPUT
ENABLED"
ENABLED"
O
H
P06
O
H
P05
O
H
P04
O
H
P03
O
H
P02
O
H
P01
O
H
P00
O
H
xxx1181
P17
VER5
I
L
RAM(H: 2Mbit, L: 1Mbit)
P16
VER4
I
H/L
Card recognition
P15
VER3
I
H/L
P14
VER2
I
H/L
Hardware version management Initial No. =0
P13
VER1
I
H/L
P12
VER0
I
H/L
P11
PORT1
I
H
Port No. 16
P10
PORT0
I
H
xx1182
P27
O
L
P26
PF_RLY
O
L
Power failure direct connection switch
P25
MWPOW1
O
H
P24
MWPOW0
O
H
P23
LED_G
O
L
Green LED ON
P22
LED_R
O
L
RED LED ON
P21
BELL CNT
O
L
Bell relay stop
P20
I
HIGH (Fixed)
59
KX-TDA0177XJ / KX-TDA0177X
xxx1183
P37
I
HIGH(Fixed)
P36
I HIGH(Fixed)
P35
I
HIGH(Fixed)
P34
I
HIGH(Fixed)
P33
I
HIGH(Fixed)
P32
I
HIGH(Fixed)
P31
I
HIGH(Fixed)
P30
I
HIGH(Fixed)
xxx1184
P47
Used as "DTMF R OUTPUT
ENABLED"
ENABLED"
O
H
P46
O
H
P45
O
H
P44
O
H
P43
O
H
P42
O
H
P41
O
H
P40
O
H
xxx1185
P57
I
HIGH(Fixed)
P56
I
HIGH(Fixed)
P55
I
HIGH(Fixed)
P54
I
HIGH(Fixed)
P53
I
HIGH(Fixed)
P52
I
HIGH(Fixed)
P51
I
HIGH(Fixed)
P50
I
HIGH(Fixed)
ADDRESS
PIN No.
SIGNAL NAME
I/O
ACT
DESCRIPTIONS
NOTES
60
KX-TDA0177XJ / KX-TDA0177X
13.1.2. IC201, IC202, IC250, IC251 (CODEC I/O Port)
CODEC
EXTENSION
PORT
PIN No.
SIGNAL NAME
I/O
ACT
DESCRIPTIONS
NOTES
CODECIC201
EXT0
SO1_1
O
L (Fixed)
SO1_0
BELL0
O
H
Ringer output
SB1_2
O
+5V pull up
SB1_1
DIAG_RLY0
O
H
Self diagnosis switching
SB1_0
O
+5V pull up
SI1_1
HOOK0
I
L
Off-hook detection
SI1_0
DT_EST0
I
H
DTMF detection
EXT1
SO2_1
O
L(Fixed)
SO2_0
BELL1
O
H
Ringer output
SB2_2
O
+5V pull up
SB2_1
O
H
SB2_0
O
+5V pull up
SI2_1
HOOK1
I
L
Off-hook detection
SI2_0
DT_EST1
I
H
DTMF detection
EXT2
SO3_1
O
L (Fixed)
SO3_0
BELL2
O
H
Ringer output
SB3_2
O
+5V pull up
SB3_1
O
H
SB3_0
O
+5V pull up
SI3_1
HOOK2
I
L
Off-hook detection
SI3_0
DT_EST2
I
H
DTMF detection
EXT3
SO4_1
O
L (Fixed)
SO4_0
BELL3
O
H
Ringer output
SB4_2
O
+5V pull up
SB4_1
O
H
SB4_0
O
+5V pull up
SI4_1
HOOK3
I
L
Off-hook detection
SI4_0
DT_EST3
I
H
DTMF detection
CODECIC202
EXT4
SO1_1
O
L (Fixed)
SO1_0
BELL4
O
H
Ringer output
SB1_2
O
+5V pull up
SB1_1
O
H
SB1_0
O
+5V pull up
SI1_1
HOOK4
I
L
Off-hook detection
SI1_0
DT_EST4
I
H
DTMF detection
EXT5
SO2_1
O
L (Fixed)
SO2_0
BELL5
O
H
Ringer output
SB2_2
O
+5V pull up
SB2_1
O
H
SB2_0
O
+5V pull up
SI2_1
HOOK5
I
L
Off-hook detection
SI2_0
DT_EST5
I
H
DTMF detection
EXT6
SO3_1
O
L (Fixed)
SO3_0
BELL6
O
H
Ringer output
SB3_2
O
+5V pull up
SB3_1
O
H
SB3_0
O
+5V pull up
SI3_1
HOOK6
I
L
Off-hook detection
SI3_0
DT_EST6
I
H
DTMF detection
EXT7
SO4_1
O
L (Fixed)
SO4_0
BELL7
O
H
Ringer output
SB4_2
O
+5V pull up
SB4_1
O
H
SB4_0
O
+5V pull up
SI4_1
HOOK7
I
L
Off-hook detection
SI4_0
DT_EST7
I
H
DTMF detection
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