Kenwood NX-300 Service Manual page 171

TX-RX unit (X57-7370-11)
CN900
I2CCK
I2CSDA
50C
IC500
LM73CIMKX-0
Temp. IC502
33C
Sensor SKY72300-362
VC
TCXO_MOD
VC
TCXO
IC501 X500 19.2MHz
TLV2381IDBV PLL
PLD
+B
Q901
SSM6L05FU-F
DC SW SB3
SBC
Q904 SSM5H01TU-F
IC901 XC9101D09AKR
DCDC
150C
Converter
IC902
TK11250CUCB
AVR 50C
/SAVE
IC903 TK71733S
38M
AVR 33C
IF_DET
SBC
Q902 SSM6L05FU-F
DC SW 50R
50IF
5RC
Q903 SSM6L05FU-F
DC SW 50IF
Q905 2SA1955A-F
DC SW 50T
/5TC
IC900
TC75S51FE(F)
IFC
33C
Q507
2SC5383-T111
Ripple
Filter
T/R
Q510 SSM6L05FU-F
/T_R
SW
Q511 2SJ347F
Q512
2SC5636
Loop BUFF
VCO
Filter AMP
Q504
Q508,509 2SK508NV(K52)
2SK879-F(Y)
D506,507 1SV325F
CV D519 1SV278F
D511,516,517
IC504
1SV282-F
TC75W51FUF(1/2)
D510,514,515
VCO MOD 1SV290B-F
150C
Q503
2SC5383-T111
Ripple
Filter
ASSIST
IC503
TLV2381IDBV
LPF
Q700 2SC5108(Y)F
x3
CF700 450kHz
50R
BPF
IC700 CF701
MCP6021-E/OT 450kHz 2SC4215-F(Y)
IF AMP
IF
BPF IC701
AMP
TK10931VTL-G
/EMG SB3
DC
SW
LED_R
LED_G
Q600 D600,601 Q601
2SC5636 HSC277x2 2SC5636
Pre-
BUFF T/R
Drive
AMP SW
AMP
LPF
150C
Ripple
Filter
TV2
Q701 XF700 Q703
58.05MHz 3SK318
IF 1st
MCF
AMP MIXER
CN901
PTT
Side_1
Side_2
Side_G
D606,607
Q602 Q603 Q606 D709,711
2SK3077F RD01MUS1-T113 RD07MVS1BT122 HVC131x4
Pre-
Drive Final
Final
AMP AMP
AMP
Q610
EMD5
Q604
DC SW DC SW
2SC5383-T111
/DSW
IC600 APC
TA75W01FUF
Q607 Q608
RT1N441U-T111 2SK1824-A
Q704
2SC5383-T111
DC SW Protect
Q605
SSM3K15TE(F)
/APCSW
IC703
IC702
TLV2381IDBV
TLV2381IDBV TV1
TUNE TUNE TUNE
Q705
3SK318
RF
BPF BPF Notch
AMP
L713,714,715 L721,722 L726
50R
PTT
Side1
Side2
TX/RX: 400~470MHz
ANT
LPF
SW
/APCSW
+B
ASQ
APC
IC504
TC75W51FUF(2/2)
+
+B
BATT
7.5V
–
S_DET S