Read Panasonic KX-NT543RU / KX-NT543RU-B / KX-NT546RU / KX-NT546RU-B (serv.man4) Service Manual Supplement online
3
KX-NT543RU/KX-NT543RU-B/KX-NT546RU/KX-NT546RU-B
1.2.
Schematic Diagram
1.2.1.
Ope
Changed from Original Service Manual as section 12.5.
(1)
(2)
(3)
(6)
(4)
(8)
(9)
(11)
(11)
(5)
(7)
(7)
(10)
(12)
(12)
(13)
(15)
(14)
KX-NT543RU/KX-NT546RU OPERATION BOARD 1/2
C
E
B
A
D
F
3
2
4
KEYIN0
KEYIN1
ASIC_CLK
LED_BELL_R
LED_BELL_G
INT0
ASIC_RST
I2C_SCL
I2C_SDA
LED_STB2-R
LED_STB3-R
LED_STB3-R
LED_STB7-R
LED_STB7-R
LED_STB6-R
LED_STB4-R
LED_STB6-R
LED_STB5-R
LED_STB5-R
LED_STB2-R
LED_STB3-R
LED_STB3-R
LED_STB2-R
LED_STB4-R
LED_STB6-R
LED_STB1-R
LED_STB4-R
LED_STB3-R
LED_STB4-R
LED_STB5-R
LED_STB4-R
LED_STB2-R
LED_STB0-R
HEADSET_MIC
LED_STB0-R
LED_STB5-R
LED_STB1-R
HEADSET_DET
LED_STB5-R
LED_STB2-R
LED_STB4-R
LED_STB3-R
LED_STB4-R
LED_STB2-R
LED_STB5-R
LED_STB5-R
Vraw
EHS_DATA
ASIC_CLK
AG
AG
AG
EHS_DET
LED_COM3
LED_COM3
LED_COM4
LED_COM4
LED_COM1
LED_COM4
LED_COM1
LED_COM2
LED_COM2
LED_COM4
LED_COM4
LED_COM4
LED_COM4
EHS_TX
EHS_RX
C241 0.1u
R221
NC
3.3V
C221
NC
C223 18p
C217 22u
C218 22u
C224 18p
EHS_RX
EHS_TX
R210
10k
DG
3.3V
JK202
2
3
1
4
5
C202 0.1u
IC204
1
2
3
4
R208
10k
C210
NC
EHS_DET
EHS_DET
R220 330
JK203
1
4
2
3
5
Q202
R201
1k
R230
22
R231
22
C226
330p
C205
1000p
DG
AG_PAD
D245
21
D247
21
D246
21
J235
J213
J209
J203
J222
J232
J234
J233
J229
J217
J227
J210
J220
J211
J223
J230
J208
J231
J218
J221
J215
J202
J205
J259
J262
J224
J212
J207
J228
J214
J219
J216
J265
J272
J226
J201
J225
J206
J204
R228
0
L210
L209
L208
5V
5V
R226
330
R209 150
R222
NC
C204 10u
C213
4.7u
R254
10k
CN205
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
11
12
AG
AG
AG
AG
AG
AG
AG
R253
33k
D206
D244
Q203
4.7k
10k
Q201
HOOK_SW
1
2
C207
NC
R223
2.7k
J275
J276
NC
L212
AG
HEADGND
HEADGND
HEADGND
HEADGND
HEADGND
HEADGND
IC203
1
2
3
5
4
4
IC202
1
2
3
5
4
4
C215
C244
NC
J258
J260
J261
J266
J264
J245
J247
J249
J251
J270
J271
J267
J268
17 ASICRST
17 I2CSCL
17 ASICCLK
17 I2CSDA
18 EHSTX
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