Kenwood NX-820H Service Manual page 88

TX-RX UNIT(X57-8240-1X)
FSX0 FSX0 B-BUS B-BUS FSX0
PLL_MOD CLKX0 CLKX0 CLKX0
X2/CLKIN X2/CLKIN X2/CLKIN
A-BUS D-BUS A-BUS D-BUS D-BUS A-BUS
C-BUS C-BUS C-BUS
C N42 3 R:13.6V R526 33MDSP
T(45W):13.0V DC/DC Converter(50M) IC405 100k
+B LT1616ES6-PBF +B CP507
100kX4
BATTERY 13.6V C N 42 2 CN541 CN542
-B 4 SHDN FB DC/DC Converter(50M) CP513 100kX4
5 VIN 3 D 407 5.02V DGND
L404 6 GND 2 RB52 0SM-3 0 50M
Surge Reverse SW BooST 1 100kX2 CP514 15MDSP C533
Protection Prevention Current 33MDSP 10u
L405
DC/DC 22uH CN502 CLKoUT
Converter 50M HOST_RDY
AVR(33A) D[15] L13 CN503 /HINT GPSDET
D[14] L12 D[15] XF E14 A[0]
3.27V AVR(33M) 4.98V R418 CN421 D[13] L11 D[14] GPIo0 F3 A[1]
R410 5 VoUT VIN 1 33A D[12] M14 D[13] GPIo1 E1 A[2]
VoUT VIN 1 4.7 VSS 2 0 Q4 0 9 D[11] N12 D[11] D[12] GPIo2 E2 R541 /MCCSXCN A[3]
5 VSS 2 D405 CE 3 4 3 33A_2 C501 D[10] P12 D[10] GPIo3 B3 CN540 100 A[4]
CE 3 DB2S310 4 NC 5 2 3.3V 0.1u D[8] D[9] N11 L10 D[9] GPIo4 A3 CP504 A[5] A[6]
Discharge 4 NC IC406 6 1 D[7] P11 D[8] GPIo5 D5 MCSCKCN A[7]
IC401 R411 XC6209B332M-G EM 6M 1 33A_2 D[6] M10 D[7] GPIo7 GPIo6 C4 MCDICN A[8]
XC6209B332M-G 47k 3.31V DC Switch D[5] P10 D[6] GPIo8 D1 100X2 A[9]
(33A_2) D[4] L9 D[5] GPIo9 H4 G5 CP503 A[10]
SBC2 D[3] M9 D[4] GPIo10 H5 A[11]
F 502 50MC D[2] P9 D[3] GPIo11 J3 A[12]
50MC 4.99V D[1] K8 D[2] D[1] GPIo12 M1 100kX4 FSDET A[13]
2.5A Q 41 0 2 S A 1 9 5 5 A - F D[0] L8 D[0] GPIo13 M2 C536 A[14]
R423 DC Switch(50MC) CN419 G3 A[20] RTCINX2 B12 R536 0.1u R549 A[16] A[15]
2.3V SBC2 4.7k K1 H3 A[19] RTCINX1 A12 0 CP502 10k A[17]
Q 4 0 7 F K3 30 30 1 CN418 C502 P5 A[18] SDA SCL H14 A[18]
DC Switch(50MC) 0.1u P7 A[17] DN H13 100kX2 A[19]
R412 R413 15M M8 A[16] DSP DP D3 D4 A[20]
10 10 K9 A[15] I C 5 0 2 PU C1 CN504
R:4.59V 1.5V C503 A[13] N3 A[14] AIN[3] E11 100kX2 CP510 D[0]
T:3.45V A[12] P3 A[12] A[13] AIN[2] D12 D[1]
0.1u A[11] L4 A[11] AIN[1] D13 D[2]
AVR(15M) A[10] A[9] N4 A[10] AIN[0] D14 C527 D[4] D[3]
Voltage Detector(BINT) IC408 A[8] P4 L5 A[9] RCVDD_4 C12 0.1u D[5]
XC6205B152P-G CN417 A[7] N5 A[8] RDVDD_3 RDVDD_2 A14 D[6]
4 VSEN A[6] L6 A[7] RDVDD_1 B13 D[7]
VIN 3 D 33M A[5] M6 A[6] AVDD C14 A13 D[8]
V SS 2 R4 38 AVR(33GPS) 33GPS A[4] P6 A[5] ADVDD F10 D[9]
5 CD Vo UT 1 1 0 33GPS C504 A[3] K6 A[4] USBVDD D2 D[10]
4.43V 3.32V 0.1u A[2] K7 A[2] A[3] USBPLLVDD G11 C528 D[11]
XC6118C23CMR IC402 A[1] M7 A[1] CVDD_15 N8 0.1u D[12]
A[0] L7 A[0] CVDD_14 N7 D[14] D[13]
3.26V IC407 R501 NC H11 F2 A'[0] CVDD_13 M11 C529 D[15]
NJM2878F4-33 22 A2 X2/CLKIN CVDD_11 CVDD_12 M4 0.1u /WR
R:13.6V T(45W):13.1V SB B1 VSS_1 CVDD_10 L14 C530 /RD
C417 100p T(5W):13.0V 3.32V B9 VSS_2 CVDD_9 L1 J11 PA
SB C505 B11 VSS_3 CVDD_8 J10 0.1u INAMT
MTM981400BF Q403 10u C2 VSS_4 CVDD_7 J5 C531 CN425
8 AVR(80C) C5 VSS_5 G1 0.1u /CS3
1 2 6 7 IC 1 DC Switch(80T) CN414 C506 /CS2
R:6.77V 3 4 5 TA7808F-NQ 7.9V Q 40 4 C507 10u
T:6.5V DC Switch(SB) IN 1 OUT 2 SA1 955 A-F 80C 15MDSP 33MDSP /HRDY /CS0
6.7V 2 80T 80T 10u /HDS2
DC Switch(80T) R:0.0V D TXD0
R421 Q411 R:0.0V T:7.8V DGND DGND RXD0
4.7k LTC014EEBFS8 T:3.3V RTS0
Over DC Supply CTS0
Protection0 R:0.0V T:7.8V C 5 2 4 1 u TXD1
D403 F503 80ANT HOOK_RXD1 TXD2
LTC014EEBFS8 Q401 A[0] A[16] RXD2
RB520SM-30 250mA R 4 1 9 DC Switch(80ANT) Q405 R441 80T A[16] G4
LTC014EEBFS8 Q418 2. 7k LTC014EEBFS8 DC Switch(80ANT) 2.7k G5 A16 VCC1 D6 R611
DC Switch(SB) DC Switch Q 4 12 A[15] A[15] A15 VSS1 D1 R685 10k
(80ANT) LTC014EEBFS8 G1 oE A15 D6 G6 DQ3 DQ1 D[1] D 10k
DC Switch 1.7V Q4 02 DSW R:3.3V G2 DQ9 A11 A[11] A[9] H1 A9 SRAM A5 C6 A[5]
Protection) (Over DC Supply AVR(50C) 2SA19 55A-F 50C T:0.0V D[9] G3 DQ11 A19 D5 A[19] A[10] H2 I C5 0 3 C4
I C4 04 5.0V 33M L 5 0 1 D[11] G4 D4 A[20] A[11] H3 A10 NC1 C3 D[5]
R407 XC6209B502P-G 50C G5 VCC A20 D3 A[5] H4 A11 DQ5 C1
D403,404 4 . 7 k D[13] DQ13 A5 D2 A[12] A12 DQ0 B6 D[0]
Reverse Current DC Switch(50R) 50R D[15] G6 DQ15 Flash Memory IC501 A1 D1 A[1] A[13] H5 A13 A7 A[7]
Prevention 50R H1 VSS1 A14 A[14] A[14] H6 A14 A4 B5 A[4]
R:4.75V H2 DQ1 A10 C6 A[10] B4 Reset
3.30V T:0.0V D[1] H3 C5 B D5 3 2 9FV E I C 5 04
Q 4 1 7 D[3] H4 DQ3 A21 C4 A[18]
E M D 5 D[4] DQ4 A18 C3 A[6] 4 GND CT 3
DC Switch(50CS) 50CS D[6] H5 DQ6 A6 C2 D[4]
50CS H6 VSS2 A2 A[2] L505 VDD 5 SUB 2 RS T R S T
4.89V D C1 R546 VoUT 1 3.3V
Digital GND 3.3V 0
50CS(SAVE) R503 D C537
C649 R682 R681 0 R680 EMD 5 Q408 R:3.3V 100k
0.01u 0 C648 0 R678 T:0.0V 1000p /RST D
R683 R677 0.1u
0 0 R679 C647 0
0 0.01u
D D D D
B-BUS B-BUS
B-BUS B-BUS B-BUS B-BUS
(MCLK) D703,704
18.432MHz 3.3V FSX0 FSX0 D703 AF Detector Q 7 0 4
CLKX0 CLKX0 DA3S101F R775 2SC4738(GR)F
IC506 18.423MHz X 5 0 1 I C 5 0 8 Q703,704
R558 4 Q VSS L77-3015-05 1 INB T C 7 S H 0 8 F U - F 5.6k MIC AGC
L 5 0 6 22 5 VDD XT 3 C542 oUTPUT 3 VCC 5 1 INB VCC R568
6 2 0.01u GND 2 SCK1 2 INA 2 INA 5 0
XTN INHN 1 4 R567 3 GND 3 R569
S M 5 0 2 3 C N D H - G D VCC VC 1 1k oUTY 4 GND oUTY 4 0 R777
C 5 4 3 AND Gate
R555 CN523 D I C 3 0 1 AND Gate D704 10k Q703
1k Buffer AMP(Clock) 0.1u /PCS TC7SH08FU-F D DA3S101F 2SA1832(GR)F
D MIC SUM
MIC C706 R707 R769
0.1u 10 1.8k 680k SSM3J15FS Q706
R556 C765 R778 C774 C782 C812 SSM3J15FS Q705
A4 XTALI E12 R787
NC 22 A10 B4 XTALo DGND2 E11 22p 27k 0.1u 12k 0.1u 10u 10
D A12 32I DGND1 E10 C565 0.1u
GPSDET B11 DSPCK DVDIo7 L 5 C566 0.1u (VREF)
A11 CKo DVDIo6 P 6 C567 0.1u C718 0.1u 1.65V
H18 ADD0 USRCKI DVDIo4 DVDIo5 P11 C568 0.1u
J18 ADD1 DVDIo3 L14 C569 0.01u
K18 ADD2 DVDIo2 H 1 4 C570 1u MOD SMF 1 IC703
L18 ADD3 DVDIo1 E13 R702 R709 R711 VDD 8 R773 B U 7 4 6 2 N U X
M18 ADD4 DVDD10 E 7 M5 C573 C572 0.1u 0.1u MOD 2.2k 100k 100k 2 - + 7 0 LPF(DI) MIC SUM AMP/
J17 N18 ADD5 DVDD9 N5 C574 0.1u 3 + -
K17 ADD6 DVDD8 P 9 C575 0.1u DC Switch(System) 4 VSS 6 C743
M17 ADD7 DVDD7 P10 C576 0.1u Q501 5 47p
N17 ADD8 DVDD6 N 1 4 C577 0.01u F K 3 3 0 3 0 1 VCO MOD/VREF R748 R751 R756 C784
P17 ADD10 ADD9 DVDD4 DVDD5 M 1 4 C578 1u I C 7 0 1 100k 100k 1k 10u
K16 ADD11 DVDD3 G 1 4 B U 7 4 6 2 N U X
L16 ADD12 DVDD2 F 1 4 D D DI
M16 ADD13 DVDD1 E 9 L510
P16 ADD14 GPIo11 E 8 B 5 D /H_L
K15 J15 ADD15 GPIo10 C 6 /SAVE SBC
M15 ADD16 GPIo9 B 6 ASTSW
N15 ADD17 GPIo8 A 6 BUCNT2
P15 ADD18 GPIo7 U8 BUCNT1
J16 ADD20 ADD19 GPIo6 GPIo5 R8
H15 ADD21 GPIo4 R7 MKEYO Reverse
G17 DT0 GPIo3 T7 MKEYI Current Prevention
H16 DT1 GPIo2 V10 EMG
G15 DT2 ASIC ASIC GPIo1 U9 V9 /OVRB
F18 F17 DT3 IC507 I C 5 0 7 GPIo0 T9 /INT15P
G16 DT4 B U 7 3 1 7 G U K W 1 SIMRST C11 POWER /IGN
E18 DT5 SIMCK D12 /BINT ASQ
E17 DT6 SIMDT C12 /SYMTIM ASQDET R722 R741
F16 DT7 DT8 SYMTIM FSDET R5 FSDET 100k 47 CN701
D18 DT9 TXRVE R6 TXC C723 R738 1SS422 D702
D17 DT10 TRAMP R2 DSW 47p 10k C741 R750
B15 DT11 TMoD P3 GLED 39k
D16 DT12 PSTPA P2 M4 R 5 9 9 RLED 33M 0.22u
C15 D15 DT13 PSTIF R1 10 0k MM C732 Noise
E15 DT14 PSTPLL N3 MM2 1000p Detector
A15 DT15 RXRVE N2 /T_R Noise AMP
A16 WRITE RXSLT P1 RXC B U 7 2 4 2 N U X IC705 Q702
B14 READ BHE PSRRF PSRIF L4 HSW SQL Noise BRF/Buffer AMP(SQ) KTC4075E(Y,GR)
C14 BLE PSRPLL M2 GPSC C702 C705 BW Switch C716
A13 CS4 RSSIT M3 /DWUP 1000p 47p 100p R720
D13 CS3 VFRM N1 /DINT 330k
C13 CS2 VoINT D8 D7 0.01u C719
B13 A14 CS1 MCo2 C7 PCB_VER M_MODEL C579 C580 0.01u Q701 100p 33A_2
B12 CS0 MCCS2 D10 FK330301
D14 HRADY MCCK2 C8 DSP_ST D DEO Buff
R18 HDS2 MCCR1 D9 /MCCSXCN
T18 RXD0 TXD0 MCCX1 B7 HOST_RDY 1
R16 RTS0 MCI1 MCo1 C9 MCDICN VDD 8
R15 CTS0 MCCK1 B8 MCSCKCN 2 - + 7 C733
U15 TXD1 MCCS0 A7 B10 /MCCSAF ASQAPC R701 R706 3 + - R724 R730
T15 RXD1 MCo0 B9 MCDOAF MCDIAF 10k 82k 4 VSS 6 47k 47k 4.7u R837
V15 V14 TXD2 MCI0 D11 MCSCKAF 5 5.6k
T14 RXD2 MCCK0 A8 IC702
TXD3 R3 PLD B U 7 2 4 2 N U X
LPF(APC/DMO)
C558 BEEP R772 R776 C776
0.1u D D 10k R783
R552 4.7k C559 15k 0.039u 150k
R553 4.7k D D 10u RX SUM AMP/LPF(RX AF)
R581 R 5 8 4 C 6 8 0 IF_DET IC711
100k VOICE R826 C808 R827 RX SUM BU7462NUX C704 R703
R687 C N 4 2 8 47k 0.1u 10k 0.068u 82k 1u 10 56k
10k DGND CN509 C560 3p R705
R559 C544 CN507 1 VDD 68k
3.9k 0.1u 100k RXAF C746 R754 2 - + 8
R554 C545 D D D R583 R580 3.3k 0.1u 56k 3 7 R710
3.3k 10u 4 + - 6 56k
VSS 5
C777 RXAF SMF
0.1u
B-BUS B-BUS
B-BUS B-BUS
✽ 1
0-10,0-11 X57-824X-XX NX-820H(G)/820H K 0 R781 0-10 ,0-12 X57-823X-XX NX-820H(G) K,K2 YES A801 CN801 YES C809 YES C814 C815 YES YES C816 YES YES C820 C821 C822 YES YES C823 YES C824 C825 C826 YES YES YES YES D801 D802 YES YES L801 YES L802 YES L805 L806 YES YES R561 R802 R835 R839 R842 R843 R844 IC801 YES YES YES YES YES YES YES
0-12,0-13 NX-820H(G)/820H K2 NO 0-11 ,0-13 NX-820H K,K2 NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO
B-BUS B-BUS B-BUS
✽ 1 THP1
I C 7 1 4 C N 8 0 2 C N 8 0 3
B-BUS
R561 Dual BUS Buffer
0 I C 8 0 1
TC7WH126FU-F 33C
MM2 DC 1.44V { 1.44V } DC D
SPAF R823 C806 Bias 1.44V R819 C797 1.44V Bias A2 5 TEMP L 1
Y1 6 GND 4 C10 0.01u
12k 1u 2.2k 0.22u G2 7 Y2 3
C791 R816 C796 R820 C798 33A VCC 8 A1 2 C11 0.01u
MI2 PAAF G1 1
Mute(MI2) 10u 10 12k 1u 2.2k 0.22u R811 C622 CP703 C826 0.1u
Mute(MI1) C790 10k 0.01u GND1 VCC
2.7V IC512 13
10u 10 INAMT R847 F701 TC7WBD125AFK 100kX4 14 NC_1
22k 1 oE1 GND2 oUTPUT NC_2
2.5A 2 A1 VCC 8 R636 4 7 0 k R 8 3 9 X 1 15 NC_3
PA R846 R813 I2CCK oE2 7 L77-3073-05 C3 L 2 R 7 2 16 NC_4 PLL System IC2
MM 22k Q709 1k I2CDT 3 B2 B1 6 1 9 S C L Io1.2 12 10 0 . 0 1 u 4.7u 1 k 17 NC_5 S K Y 7 2 3 1 0 - 3 6 2
SSM6N37FE 4 GND 2 0 SDA Io1.1 18
A2 5 2 1 VDD I/O Expander Io1.0 11 GPS Module NC_6
AF Mute Switch Q708,709 2 2 INT P C A 9 5 3 5 B S IC515 10 50C L 8 0 1 AVR(33C) 3.3V
Q708 Leval Shift 2 3 A1 VSS 9 CP705 R 8 4 2 R843 C821 R825 33C NJM2878F4-33 IC409 L 3
LTC014EEBFS8 J701 /INT15P Io0.7 8 0 0 18p 50M
2 4 A2 Io0.6 7 0
100kX2
D505-510
Line Protection D801,802
CP704 Over DC Supply Protection
DI
100kX4 5 SBC2
CP706 R664 R667 F N C 1
0 100 C 6 3 4
100kX2 6
SDO0 R 6 6 8 1 0 0 p F N C 6
SCK0 9 470 C635 D408,409 13.9V
/EVCS S P 2 S P 2 R662 R 6 6 9 1 0 0 p F N C 2 DC/DC Converter D408 D409 R435
C778 0 100 C 6 3 6 D-Sub15 D B 2 S 3 1 0 DB2S310 0
1u 10 50MC R506 100p 5 0 M C J 5 0 1 150C
C779 100p 6
1 1 0 C637 1 80C R 4 2 9 R 4 3 1
R 6 5 9 R 6 7 0 1 0 0 p F N C 3 1 1 7 0 0 Q415,416
7 0 100 C638 1 2 2 Q 4 1 5 Q 4 1 6 DC/DC Converter
CN710 VoUT3 VoUT2 24 12 100p S P 2 8 3 2SC4738(GR)F 2 S A 18 32 (G R )F
8 VoUT4 VoUT1 23 20 F1CNT R663 C639 1 3 DC Switch(150C)
9 VIN4 D/A Converter VIN1 F34CNT R658 4 9
10 VIN5 R2A20178NP IC712 VIN8 22 17 SB F2CNT R671 1 0 0 p FNC4 1 4 1 0
11 21 DEO 50MC 14 R660 0 1 3 100 C640 5
VoUT5 VoUT8 20 R796 C788 R634 100p DATO 1 5 Q 4 1 4 20KHz 3.3V
12 VoUT6 VoUT7 19 4.7u DATO DATO 100 C 6 4 1 E M D 9
0 DATAI DATAI DEO_AFO 10 R 6 7 2 1 0 0 p B-BUS
470 F N C 5
33M RXD_FNC2 R665 C642 C N 3 0 2 150C
18 I C 5 1 4 DI_MI2 R 6 2 6 1 0 0 p D A T A I
T C 7 W H 1 2 6 F U - F 7 15 100 C643 3.83V C 3 2 2
1 G1 F501 0 . 0 2 2 u SB L 3 0 2 1 0 0 p
2 A 1 VCC 8 C 6 4 4 5 6 0 n R 3 0 6 R 3 1 5 C316 L 3 0 4 C324 C 3 5 9
33A_2 DI D705 EMZ6.8N EMZ6.8N D 7 0 6 CTS0 3 Y 2 G2 7 R666 G N D 3 3 0 k 0 10p 56n 33p 0 . 0 1 u
R797 Y1 6 1 0 0 p R303 C315 1 3
0 4 GND A2 5 6 1 k 0 . 0 1 u 2
1 9 RS-232C Driver Tripler 0.64V
C624 2SC5108(Y)F Q 3 0 3 4.71V
/IGN /IGN /IGN 0.01u 9 R2oUT RXD C 3 3 0
D705,706 Dual BUS Buffer 10 T2IN R2IN 8 TXD 9.9V 0.1u
MIC/RX Selector(BINT) Line Protection RXD0 RXD0 D504 (FNC2/FUNC4) 11 T1IN T2oUT 7 DC Switch(Horn Alert)
IC713 V- 6 Q502
T C 7 W 5 3 F K ( F ) Reverse DB2S310 12 R1oUT C2- 5 C628 1 u 25 L T C 0 1 4 T E B F S 8 L72-1017-05
5 50M Current Provention 13 R1IN R657 R661 R 6 4 3 C307 R 3 0 8 IN o U T C 3 1 3 R323 C 3 2 7 R332 0
6 A GND 4 F34CNT 14 T1oUT C2+ 4 C 6 2 9 1 u 25 4.7k 47k 0 0.1u 0 0.1u 0 0.1u C332 0.1u
CH1 VEE 3 15 GND C1- 3 C 6 3 0 1u 25 MTM981400BF R326 C333 0.1u
7 CH0 INH Dual BUS Buffer(FNC3/FUNC1) 50MC 16 VCC V+ 2 Q 5 0 3 330 C334 0.1u
8 VCC CoMMoN 2 IC513 C1+ 1 (Horn Alert) DC Switch
1 TC7 WT1 2 6 FU -F I C 5 1 6 9.9V C632 R 6 4 1 C F 1 C335 0.1u
1 G1 A D M 2 0 2 E A R N Z C627 1 0 0 0 p C 3 2 6
C786 RTS0 2 A1 VCC 8 1 u 25 0 1 0 p
0.1u 3 Y 2 G 2 7 RTS_FNC3
Y1 6
MIC RX SEL 4 GND A2 5 R674
TXD0 1M
C N 7 0 5 R637
TXD_FNC1 1k
TXD0 D 5 1 3 R638 C N 7 2 0
D512,513 Reverse D B 2 S 3 1 0 1k D_RXD2 DC Switch(IGN)
C N 7 0 7 Current D512 Line Protection L T C 0 1 4 T E B F S 8 Q504
Prevention DB2S310 D601 IF_DET
D B 2 S 3 1 0
S P - S P - S P - S P -
S P + S P + SP+ S P +
M I C M I C M I C M I C
M E ME ME M E
B-BUS B-BUS B-BUS B-BUS
X57-824X-XX C12 C47 C49 C50 C51 C54 C59 C61 C66 C67 C68 C72 C90 C208 C212 C214 C218 C220 C221 C222 C224 C225 C226 C230 C231 C232 L11 L13 L17 L18 L21 L23 L24 L204 L205 L206 L207 L208 L209 L211 L214 R46 R55 R57 R82 R85 R86 R90 TH2
0-10,0-11 NX-820H(G)/820H K 5p 3p 18p 270p 470p 5p 20p 0.5p 6p 4p 3p 5p 7p 4p 8p 7p 6p 12p 4p 2p 13p 8p 4p 8p 8p 5p 180n 180n L34-4607-15 L34-4608-15 180n 180n 180n 15n 15n 39n 27n 27n 27n 27n 18n 68 150 150 0 0 0 1M ERTJOEV104H 0-10,0-11 X57-824X-XX NX-820H(G)/820H K C124 6p C129 6p NO C133 C135 NO C137 NO C142 NO NO C144 NO C145 C148 NO C149 22p C150 NO 2p C175 C179 3p 5p C180 5p C254 C255 2p C256 22p C263 7p C290 2p C292 10p 100p C296 E23-1278-05 CN13 NO D102 L210 68n 18n L213 27n L215 18n L228
0-12,0-13 NX-820H(G)/820H K2 7p 4p 10p 150p 270p 8p 24p NO 7p 5p 6p 4p 10p 6p 12p 8p 5p 15p 8p 10p 15p 4p 5p 10p 5p 9p 220n 220n L34-4608-15 L34-4609-15 220n 220n 220n 18n 18n 47n 33n 33n 33n 33n 22n 33 180 180 NO NO NO NO NO 0-12,0-13 NX-820H(G)/820H K2 7p 7p 220p 470p 100p 470p 100p 0.1u 100p 470p 1u 6p 4p 6p 4p NO 18p 10p 3p 8p 18p NO DA3S101F 82n 22n 33n 2.7n
THP1 THP1 THP1 THP1
2.6V:25
✽ C 4 7
C 3 1 ✽ ✽ VCO TX Power Module
FIN FIN R 4 1 L20 C 4 9 R 4 6 R 8 0 R83 ✽ R 8 6 E23-1278-05 TH1 IC102
47p 0 1 2 n 0 0 CN14 CN10
R:3.92V R 8 1 R 8 4 R 8 7 CN11
RX VCO ✽ L24 T:0.93V 0 ✽ ✽ 0 0
Q5 R 5 8 R 8 2 R 8 5 K K2
RX VCO RX VCO Assist Tune MCH3914(8)-H ✽ C 6 6 R:1.26V 1 0 Q10,11 CN15 CN12 ✽CN13 T(45W):3.1V R:0.0V R:0.0V T(45W):3.3V
Frequency Control D7 RX VCO T:0.0V Buffer AMP TX Pre-Drive AMP T(5W):2.1V T(30W):2.5 T(30W):2.9V T(5W):2.3V
R 4 0 L 6 ✽ C 5 0 1SV282-F ✽ C 5 9 ✽ L18 C 7 4 R:4.41V 2SC3356-A(R24) Q 1 0 1 C 1 0 9 ✽ R103 C104 TX Drive AMP R122 13dBm
0 10u 0.5p Q 1 1 T:4.41V Q 1 0 2 1 2 (32dBm:Lo-Pow)
CPout R19 R 2 0 R24 L 5 D9,10 2SC5108(Y)F Q 1 0 2 S C 5 1 0 8 ( Y ) F C 8 9 L 1 2 1 6 p 4 7 0 p 2 S C 3 3 5 7 - A C 1 1 9 ✽ R 1 8 8 L 1 0 6 R123 C136 L 1 1 5
6 0 0 390 Assist Tune RX VCO R:0.69V R 6 1 C 8 1 C84 6p D 1 7 15n 6 p 1 8 n 1 2 470p
VCCcp 5 T:0.69V 1 5 0 k 7 p 3 p R:1.04V T:1.04V R K S 1 5 1 K J R:13.6V
LD/PS 4 C25 R:0.0V R:3.71V D16,17 T:12.9V(45W)
Fin C 2 0 T:3.9V T:3.71V T/R Switch K2:1.4dBm K:4.2dBm
Fin 3 1 0 0 p 1 0 0 p R 3 6 L 4 0 ✽ L21 R 5 0
2 R 1 0 0 TX VCO 1 0
VCC 1 1 0 R14 TX VCO Frequency Control TX VCO MCH3914(8)-H Q6 C 6 9
C 2 2 R 3 5 L 7 C51 ✽ TX VCO Assist Tune C 7 1 L17 ✽ 6 p C 7 6
0.1u 47k 10u L26
C 2 3 C 2 6 0 1SV282-F D 8 18p 0.5p R:0.0V
1 0 0 p 1 0 0 p Over Voltage T:1.15V
C 1 6 1 0 0 p Protection L 1 0 3
C 1 7 1 0 0 p DC Switch
C 1 8 100p (Assist) (Assist) DC Switch
C 1 9 1 0 0 p 2SJ648-A Q2 Q1 Q8,9 R:0.0V
LTC014EEBFS8 R 3 4 L41 D11,12 FM Modulation T/R VCO Switch +B T:7.8V
0 Assist Tune TX VCO T:0.0V R:3.3V Q9 80T R:0.0V
S SM 3J1 5 FS T:7.8V
R 2 8 VCO MOD 4 EM6M1 3 80T
10M C 5 5 R49 R 5 2 5 2 ✽ C145 R 1 3 8 10k
1 u 6.3 47k 4 7 0 k R: 1.47V IC103
✽ R 9 0 ✽ TH2 6 1 T: 0V Transient NJM12904RB1
Q8 Voltage limiter ✽ D 1 0 2 1
100k L19 R 5 6 MP R130 ✽ 2 V+ 8
CV IC3 DC Switch(50C) R131 - + 7
BD7542FVM 0 Q 1 0 6 3 + - 6
R 1 3 1 oUT1 50CS T:4.05V R:4.02V E M D 5 R :0.0V 0.0V K K2 1 0 k 4 GND R149
4 7 k R 1 7 2 VDD 8 T(45W):2.5V 2.4V 5 10k
10 0 k 3 - + 7 Ripple Filter T(5W):1.5V 1.5V T(30W):2.2V 2.1V C155 470p
- + 6 ASSIST R 2 6 2SC5383-T111 Q4 OP AMP(APC)
4 VSS 5 Speed up T:4.73V R:4.71V T(45W/30W):0.0V R:0.0V
C 2 8 1 0 0 p 1 k D 1 4 D A 2 S 1 0 1 T(5W)3.3V R141
33k
C 3 0 1 u 25 R 1 3 7
DC AMP(CV/Assist) 1 0 0 k Q 1 0 5 (H/L Power) DC Switch
FK330301
B-BUS B-BUS B-BUS B-BUS B-BUS
150C 150C R 2 2 3 SideA C 2 0 6 ✽ C221 ✽ C 2 2 5 C231 ✽ C N 2 0 3
L 2 0 4 ✽ ✽ L 2 0 5
0 1.5p f1:4.75V f2:4.78V
CN205 C N 204 C N 2 06
4.78V R 2 0 4 C211 C 2 1 3
4.54V 4.7k 1 p 2 p f1:4.47V R: 0V
CN304 f2:4.77V Q202 LNA T:0.80V
FM System R 2 1 8 C 2 5 1 N E S G 2 4 0 0 3 4
IC303 0 7 p ✽ C 2 6 3 R290 ✽ C 2 5 4 C291 C289 C 2 9 7 ✽ C 2 9 6 L 2 2 8 ✽
T K 1 0 9 3 1 V T L - G 0 2p 1 0 0 p 1 0 0 p
1 OSC<B> C 3 4 7 C371 R 3 5 5 C 3 6 7 BPF f1:1.55V
2 OSC<E> RFin 24 0 . 0 1 u 0.01u 0 0 . 0 1 u 0.93V L71-0678-05 X F 1 f2:1.53V
GND 23 C 3 4 5 0 . 1 u C361 R 3 9 4 L312 L315 L 3 1 6 C360 L203 270n RX BPF Tune D201-203,205
3 MIXo COMPo 22 0 . 0 1 u 180 1 5 0 n 4 1 3 9 0 n 1 8 0 n 0 . 0 1 u fL:3.76V K 2.86V K2
4 VCC COMPi R342 1 0 0 k 1st IF AMP fC:7.47V 6.66V D204,206
5 AMIFi 21 Q 3 0 5 R203 RX 1st Mixer C216 fH:10.66V 10.17V RX BPF Tune Front RX
6 AMIFdecp NAMPo 20 R 3 4 5 2SC4215-F(Y) 680 Q 2 0 1
7 FMIFi NAMPi 1 9 C 3 4 2 1 u 0 3.30V 3SK318 4 7 0 p R230 ✽ R291
AGC 1 8 R344 DC AMP(RSSI) R257 ✽
8 FMIFdecp1 AGCAMPo 1 7 IC304 0 R 2 9 2
9 FMIFdecp2 RFAGCo 2.7k B U 7 44 5 H FV 1 oUT1 VDD 8 1 0 0 k fL:2.71V 1.52V K K2
10 LIMo 16 R350 1 I N+ 2 fC:6.25V fH:9.36V 5.41V 8.92V
1 1 QUADi RSSIo 15 10k R358 2 VSS VDD 5 3 - + 7 13.9V
12 FMDETo AMSW 14 R343 33k 3 I N- 150C 150C 4 VSS + - 6
AMDETo 13 22k oUT 4 5
C239
C351 0 . 1 u
100p C240
1u
CF2 C N 3 0 3 C N 3 0 6 DC AMP(BPF)
C337 L72-1040-05 C 3 4 3 IC201
o U T I N R337 BD7542FVM
0.1u 1 k 0.1u
GND
S P - S P - S P - S P -
S P + S P + S P + S P +
M I C M I C M I C M I C
ME ME ME ME
B-BUS B-BUS B-BUS B-BUS
DISPLAY UNIT (X54-3830-10)
X57-824X-XX C183 C184 C197 R1 R2
470 R102 12 R103 470 R104 R130 NO 820 R184 R185 820 R188 5.6 R291 0 R292 0 0-10,0-11 NX-820H(G)/820H K 6.0p NO 7p 0 NO D11-21,24 LCD
220 22 220 15K 470 470 12 NO NO 0-12,0-13 NX-820H(G)/820H K2 NO 7p 8p NO 0 LCD BACKLIGHT
D11 D15 D19
R 3 4
270
D 1 2 D16 D 2 0 2.07V
R35
270
✽ R1 D13 D17 D21
F1 R36 R29
C O UP PLER ✽ R2 270 220
Antenna Switch D110,111 F2
D110 D14 D18 D24
R37 R 2 8
L407CDB 270 120
F or w ar d Pow er Q8
D111 C 1 7 7 L116 L 1 1 7 R171 ANT B30-2337-05 K T C 4 0 7 5 E ( Y , G R )
L407CDB 1 0 0 p 0
Reverse Power SWITCH LCD BACKLIGHT
D5-9
R:0.0V KEY BACKLIGHT
T:1.6V D 5 D 8
KEY BACKLIGHT SWITCH 9.72V
5.0V
INT SP Q 9 B 30 -2337 -0 5 B 30-2 337-05
CN514 QST7
SB 1 SB SP+ 12.93V
C 6 2 1 D 6 D9
1000p 2 SB SP-
B 30 -2337 -0 5 B 30-2 337-05
3 S P - KTC4075E(Y,GR)
4 R42 Q11
S P - 2.7k D7
D104,105 5 HOOK:4.96V
TH2 2.6V:25 TX Power Detection SDO0 S P + SB:13.53V PTT:4.62V KEY BACKLIGHT B 30 -2337 -0 5
LCDCS 6 S P + J 1 MBL:5.00V 4.82V SWITCH CONTROL
Over Voltage Protection SCK0 C620 1 0 0 p DM
D 1 0 6 7 BLC HOOK
DZ2J056(M) C165 C158 BLC C618 1 0 0 p MIC
R : 0V f1 0V f2 MBL C617 8 MBL ME 4.62V
470p T(30W):2.6V 2.3V T(45W):2.9V 2.7V 4 7 0 p 1 0 0 p 9 MIC PTT D1 D2 B C
T(5W):0.8V 0.8V C P515 C616 1 0 0 p RLED GND SURGE VOLTAGE
10 SB PROTECTION PROTECTION
Reverse C615 1 0 0 p GLED MBL R12
Current Prevention BLED 100X2 11 BLED 1 0 0 S
R 1 5 8 R 1 5 2 D103 5V_TXD2 C614 1 0 0 p 5.0V 13.5V
33k 1k RKS151KJ C661 12 GND
C N 5 3 0 D 2
47p 13 GND D A 3S 101 F
5V_TXD2 14
D112-114 GND
Over DC Supply Protection 15 CN1
Antenna Switch BUS Buffer C 6 1 3 EMG 1 SB
I C 5 1 1 0 . 0 1 u 16 GND
TC74VHCT244AFK 2 SB
17 NC 3 SP-
D108 EMG
RB520SM-30 50C 18 50C 4
D 1 0 9 GLED RLED C652 CP516 C612 100p 19 5 SP+
0.1u C611 47p LCDDI 6
RB520SM-30 20 5.0V
Over DC Supply Protection D108,109 TXD2 C610 47p LCDCE 7 BLC R 7 D 2 6
100X4 21 LCDCL 8 MBL 0 R17 KMO1 KMO2
C609 47p 9 0 KMO3
R 6 1 7 22 LCDDO RLED
0 1 0 GLED H N 2 S 0 3 F E
SDI0 23 GND 1 1 BLED
24
GND 1 2 GND
BUCNT1 R 6 1 6 25 1 3 GND KMI1 4 9 K I 1
TXD1 4 7 0 k C607 1 0 0 p M I C 1 4 GND KMI2 5 0
26 ME R 5 K I 2
R614 0 15 EMG KMI3 5 1 K I 3
27 H O O K 1 6 GND 1 k 5 2
Dual BUS Buffer C605 1 0 0 p 5.0V 5 3 K I 4
TC7WT126FU-F IC716 28 P T T 17 NC L 1 K I 5
C604 1000p 29 1 8 50C 50C 5 4 V D D
MKEYO C603 1 0 0 p MKE Y 19 LCDDI 5 5 LCD DRIVER
BUCNT2 30 C P 1 5 6 V L C D
/PTT Current Prevention Reverse C602 0.01u POWER 2 0 LCDCE VLCD1 IC1
2 1 LCDCL R2 R 3 R 4 5 7 VLCD2 LC7 5857 W-E
D511 DB2S310 C651 2 2 LCDDO 5 8
100X4 1 0 k 10k 10k V S S
R684 0.1u 2 3 GND B30-2321-05 5 9 T E S T
HOOK_RXD1 4 7 k 2 4 GND D 2 2 R:4.95V 6 0 o S C
2 5 MIC T:0V 6 1
33M LED OFF:0V LED ON:2.26V R:5.0V R:2.13V D o
2 6 ME T:1.61V T:5.0V 6 2 C E
Dual BUS Buffer 2 7 HOOK R38 R 3 9 6 3
(HOOK/MKEY) 2 8 PTT 4.7k 4.7k 6 4 C L
IC509 Q 3 Q 6 Q3 D I
TC7WH126FU-F 2 9 MKEY LED OFF:0V KTC4075E(Y,GR) R:0V K T C 4 0 7 5 E ( Y , G R ) R:2.06V
S P - S P - Reverse D 5 0 2 R 6 1 5 R610 3 0 POWER LED ON:5.0V T:1.76V T:0V SWITCH TX LED
S P + S P + Current POWER Q 1 0 D23
M I C M I C Prevention DB2S310 4.7k R613 C650 470k 3.27V LTC014EEBFS8 B30-2151-05 Q6
ME ME MKEYI 10k 0 . 1 u TX LED TX/BUSY BUSY LED
POWER CONTROL SWITCH D 2 2 INDICATION SWITCH
INDICATION
B-BUS B-BUS (BLUE)
3.77V
R24
3.3k
3.77V
R25
3.3k
1.89V
R26
4.7k
KMO1
A
KMO2
KMO3
S 3 2 3 2
3 1
S 3 1
S 3 0 3 0
2 9
S 2 9 2 8
S 2 8
S 2 7 2 7
2 6
S 2 6 2 5
S 2 5
S 2 4 2 4
2 3
S 2 3
S 2 2 2 2
S 2 1 2 1
2 0
S 2 0
S 1 9 1 9
1 8
S 1 8 1 7
S 1 7