Kenwood NXR-800 Service Manual page 178

TX UNIT(17SEG)
(X56-3120-10)
Q975
UMG1N
DC SW
Q976
UMG1N
DC SW
Q974
UMG1N
DC SW
Q973
UMG1N
DC SW
Q972
UMG1N
SHIFT-REGISTER
DC SW
Q971
UMG1N
DC SW
Q970
UMG1N
DC SW
Q969
UMG1N
DC SW
Q968
UMG1N
DC SW
Q967
UMG1N
DC SW
Q966
UMG1N
SHIFT-REGISTER
DC SW
Q965
UMG1N
DC SW
Q964
UMG1N
DC SW
Q963
UMG1N
DC SW
Q962
UMG1N
DC SW
Q961
UMG1N
DC SW
Q960
UMG1N
DC SW
TX UNIT(LED)
(X56-3120-10)
IC963
SHIFT-REGISTER
IC962
CN960 CN920
LED 10 10 1 DC8
GND 9 2 GND
LED 1 8 3 50MPU
R962 0 SR_DATA 7 4 STB
R964 0 SR_CLK 6 5 SR_oE
R963 0 SR_oE 5 6 SR_CLK
R965 0 STB 4 7 SR_DATA
R961 0 50MPU 3 8 LED 1
GND 2 9 GND
R960 0 DC8 1 10 LED 10
IC961
CN921
36 DC8
35 GND
34 DC8
33 DC8
32 50MPU
31 50MPU
30 GND
29 DC8
28 K5
27 K4
26 K3
25 K2
24 K1
23 GND
22 STB1
21 GND
IC960
SHIFT-REGISTER 20 SR_DATA
19 19 GND
18 SR_CLK
17 GND
16 SR_oE
15 GND
14 PTT_TXD_SCM
13 SCM_EN
12 HooK_RXD_SCM
11 GND
10 oCXo_ST_G
9 PWR_ST_R
8 oCXo_ST_R
7 SB
6 VOLUME_IN
5 33AUD
4 33MPU
3 MIC
2 GND
1 MIG
R920
0
R921
0
D935,936
SURGE PROTECTOR
R925
0
R926 0
R927 0
R928 0
R929 0
R930 0
R931 0
0
R932
0
R934
R935 0
SHIFT-REGISTER
IC923
BU4094BCFV
1 16
STRB VDD
2 15
DATA OE
SHIFT-REGISTER
3 14
CLK Q5
4 13
Q1 Q6
5 12
1
Q2 Q7
6 11
2
Q3 Q8
7 10
3
Q4 QʼS
8 9
4
VSS QS
5
6
7
8
3-STATE BUFFER
IC922
TC7SET126FU-F
R922 4 3
oUTY GND
0 2
INA
5 1
VCC G
C920
0.1u
3-STATE BUFFER
3-STATE BUFFER
IC920 IC921
TC7SET126FU-F TC7SET126FU-F
4 3 R923 4 3
oUTY GND oUTY GND
2 0 2
INA INA
5 1 5 1
VCC G VCC G
C931
1u
OP-AMP
IC926
NJM2732V
1 AoUTPUT 8
C930 V+
R950 R942 2 A-INPUT 7
BoUTPUT
8.2k 0 3 A+INPUT 6
1u
B-INPUT
4 GND 5
B+INPUT
AUDIO LEVEL
AUDIO LEVEL
LIMITER
LIMITER
Q931
D933
2SC4116(Y)F
HSM88AS-E
R944
C936
CN923
1k
1 VoLUME_IN
0.1u
2 33MPU
3 GND
AUDIO LEVEL
AUDIO LEVEL
LIMITER LIMITER
4 33AUD
Q932
D934
2SA1586(Y)F 5S B
HSM88AS-E
R945
C935
6 SCM_EN
1k
0.1u 7 GND
8 PTT_TXD_SCM
9 HooK_RXD_SCM
10 MIG
11 MIC
SHIFT-REGISTER
IC924 IC925
BU4094BCFV BU4094BCFV
16 1 16
STRB VDD STRB VDD
15 2 15
DATA OE DATA OE
14 3 14
CLK Q5 CLK Q5
13 4 13
Q1 Q6 Q1 Q6
12 5 12
Q2 Q7 Q2 Q7
11 6 11
Q3 Q8 Q3 Q8
10 7 10
Q4 QʼS Q4 QʼS
9 8 9
VSS QS VSS QS
FINAL UNIT(MIC SECTION)
(X45-3820-10)(E/5)
VR902
R31-0668-05
R906 R905 C905 R900
0 0 10u 0
CN905
1
2
R911 C915 R902
3 0
100p
0
4
R912
5
0 R909
J901
6
0 R914 2.2k
1 NC
7
2 SB
3 GND
8
R901 1.8k 4 PTT_TXD_SCM
5 MIG
9
R910 1.8k 6 MIC
7 HOOK_RXD_SCM
10
8 SCM_EN
11
L900