Kenwood NX-720 Service Manual page 126

TX-RX UNIT(X57-8230-11)
B-BUS B-BUS B-BUS B-BUS
FSX0 FSX0
A-BUS CLKX0 A-BUS CLKX0 A-BUS
D-BUS D-BUS D-BUS
C-BUS C-BUS C-BUS
R526 100k
CN423 R:13.6V
T(25W):13.2V CP507 CP513 100kX4
+B +B +B 100kX4
DC/DC Converter(50M) D407
BATTERY 13.6V -B DC/DC
4 SHDN FB Converter(50M) CN422
5 3 5.02V CN541 CN542
L404 VIN GND 2 D407 RB520SM-30 50M CP514
Surge Reverse 6 SW BooST 1 100kX2 15MDSP C533
Protection Current Prevention 10u
LT1616ES6-PBF IC405 L405 CN502
D406 22uH DGND CLKoUT
DC/DC
Converter CN503
D[15] L13 CN540
AVR(33A) D[14] L12 D[15] XF 33MDSP
AVR(33M) CN421 D[13] L11 D[14] GPIo0 E14
4.98V 1 R418 0 D[12] M14 D[13] GPIo1 F3
R410 5 VoUT VIN 2 3.3V 33A C501 D[11] N12 D[12] GPIo2 E2 E1 R541 100 /MCCSXCN
VoUT VIN 1 VSS DC Switch(33A_2) 33A_2 0.1u D[10] P12 D[10] D[11] GPIo3 B3 CP504 100X2
5 VSS 2 4.7 D405 NC CE 3 4 3 D[9] L10 D[9] GPIo4 A3 MCSCKCN
3 DB2S310 4 D[8] N11 D[8] GPIo5 D5 MCDICN
Discharge 4 NC CE XC6209B332M-G IC406 5 2 33A_2 D[7] P11 D[7] GPIo6 C4
IC401 R411 6 Q409 1 D[6] M10 D[6] GPIo7 D1
XC6209B332M-G 47k 3.31V EM6M1 D[5] P10 D[5] GPIo8 G5
D[4] L9 D[4] GPIo9 H4
. SBC2 D[3] D[2] M9 D[3] GPIo10 H5
F502 50MC D[1] P9 D[2] GPIo11 J3 CP503 100kX4 FSDET
K8 D[1] GPIo12 M1 C536
2.5A 4.99V D[0] L8 D[0] GPIo13 M2 R536 0.1u R549
DC Switch(50MC) R423 Q410 2SA1955A-F CN419 C502 G3 A[20] RTCINX2 B12 0 10k
2.3V 4.7k DC Switch(50MC) 0.1u H3 K1 A[19] RTCINX1 A12
Q407 FK330301 P5 A[18] SDA SCL H14 CP502 100kX2
3.27V R:4.59V CN418 P7 A[17] DN H13
T:3.45V IC408 AVR(15M) AVR(15M) M8 A[16] DP D3
R412 R413 XC6205B152P-G 15M C503 K9 A[15] IC502 PU D4 CP510
10 10 0.1u A[13] N3 A[14] DSP AIN[3] C1 100kX2
1.5V A[12] P3 A[13] AIN[2] D12 E11
A[11] L4 A[11] A[12] AIN[1] D13
A[10] N4 A[10] AIN[0] D14 C527
. A[9] P4 A[9] RCVDD_4 C12 0.1u
IC402 A[8] L5 A[8] RDVDD_3 A14
XC6118C23CMR CN417 A[7] N5 A[7] RDVDD_2 B13
4 VIN A[6] L6 A[6] RDVDD_1 A13
VSEN 3 D 33M C504 A[5] M6 A[5] AVDD C14
VSS 2 AVR(33GPS) 33GPS 0.1u A[4] P6 A[4] ADVDD F10
CD 5 VoUT 1 R438 33GPS A[3] K6 A[3] USBVDD D2
10 IC407 3.32V A[1] A[2] K7 A[2] USBPLLVDD G11 C528
Voltage Detector(BINT) 4.43V NJM2878F4-33 A[0] M7 A[1] CVDD_15 N8 0.1u
L7 A[0] CVDD_14 N7
3.26V R:13.6V NC R501 H11 F2 A'[0] CVDD_13 M11 C529
T( 5W ):13.4V T(25W):13.2V 22 A2 X2/CLKIN CVDD_12 M4 0.1u
3.32V B1 VSS_1 CVDD_10 CVDD_11 L14
B9 VSS_2 CVDD_9 L1 C530
C417 100p SB C505 B11 VSS_3 CVDD_8 J11 0.1u
6.77V:Rx 6.5V:Tx Q403 SB 10u C2 VSS_4 CVDD_7 J10 C531
~6.7V MTM981400BF IC1 C506 C5 VSS_5 G1 J5 PA
1 8 7 TA7808F-NQ AVR(80C) 7.9V CN414 10u 0.1u INAMT
2 6 1 DC Switch(80T) 80C
3 4 5 IN OUT 2 . C507 15MDSP
DC Switch(SB) Q404 2SA1955A-F 80T 80T 10u 33MDSP
. DC Switch(80T) . R:0.0V D
R421 Q411 T:7.8V DGND DGND
Over DC 4.7k LTC014EEBFS8
Supply Protection T:3.3V R:0.0V
D403,404 . . T:7.8V R:0.0V C524 1u
Current Prevention Reverse RB520SM-30 D403 F503 Q402
2SA1955A-F 80ANT A[16]
375mA . DC Switch(80ANT) . .
Q418 1.7V R419 LTC014EEBFS8 Q405 R441 2.7k 80T A[0] A[16] G4 A16 VCC1
LTC014EEBFS8 DC Switch 2.7k G1 A[15] A[15] G5 A15 VSS1 D6
DC Switch(SB) (80ANT) DC Switch(80ANT) . D[9] oE A15 D6 A[11] G6 D1 D[1] D
Q401 LTC014EEBFS8 Q412 R:3.3V G2 DQ9 A11 D5 A[9] H1 DQ3 DQ1 C6 A[5]
LTC014EEBFS8 AVR(50C) . T:0.0V D[11] G3 DQ11 A19 A[19] A9 A5 C4
DC Switch (Over DC Supply IC404 5.0V 50C 33M L501 G4 D4 A[20] A[10] H2 A10 IC503 NC1
Protection) SBC2 R407 XC6209B502P-G 50C D[13] G5 VCC A20 D3 A[5] A[11] H3 A11 SRAM DQ5 C3 D[5]
4.7k . DQ13 IC501 A5 D2 A[12] H4 C1 D[0]
DC Switch(50R) Q417 50R T:0.0V R:4.75V D[15] G6 DQ15 Flash Memory A1 D1 A[1] A[13] H5 A12 DQ0 B6 A[7]
3.30V EMD5 50R H1 VSS1 A14 A[14] A13 A7 B5 Reset
R:3.3V D[1] H2 C6 A[10] A[14] H6 A14 A4 A[4] BD5329FVE IC504
T:0.0V D[3] H3 DQ1 A10 C5 B4
Digital GND . DQ3 A21 C4 GND 4 CT
R681 0 D[4] H4 DQ4 A18 A[18] D[4] 3
. D[6] H5 C3 A[6] 5 SUB 2
C648 H6 DQ6 A6 C2 A[2] VDD VoUT 1
. R683 0.1u . . CN411 4.89V VSS2 A2 C1 L505 R546 RST RST
0 R682 R679 . Q408 EMD5 D 0
0 R680 0 50CS R503
. . 0 100k D C537 3.3V
R677 R678 3.3V 1000p D
0 . 0
C647 DC Switch(50CS)
0.01u X2/CLKIN X2/CLKIN X2/CLKIN
D D
B-BUS B-BUS B-BUS
B-BUS B-BUS B-BUS B-BUS
FSX0 FSX0
CLKX0 CLKX0
. .
D703
L506 C543 0.1u D703,704 DA3S101F . 2SC4738(GR)F
IC508 AF Detector R775
IC506 18.423MHz X501 AND Gate TC7SH08FU-F 5.6k
(MCLK) Q 4 VSS 3 L77-3015-05 IC301 1 INB R568
18.432MHz 3.3V VDD 5 XT C542 3 oUTPUT GND R567 BSHIFT TC7SH08FU-F 2 INA VCC 5 0
R555 6 2 0.01u 2 1k 1 INB .
1k XTN INHN 1 4 2 INA VCC 5 3 GND oUTY 4 R569 MIC2 D704
SM5023CNDH-G D VCC VC 1 0 DA3S101F .
CN523 3 GND oUTY 4 AND Gate R777
Buffer AMP(Clock) D 10k .
D . . . MIC SUM 2SA1832(GR)F Q703
D C706 R707 MIC2 MIC2 R769
0.1u 1.8k . 680k . .
. 10 C765 R778 C774
R556 A4 XTALI C718 27k 0.1u
22 B4 XTALo E12 22p
NC A10 DGND2 E11 . 0.1u .
D A12 32I DGND1 E10 C565 0.1u IC701
B11 CKo DSPCK DVDIo7 L5 C566 . 0.1u MOD SMF BU7462NUX (VREF)
/HINT A11 USRCKI DVDIo5 DVDIo6 P6 . C567 0.1u . . . 1 8 1.65V . AMP/LPF(DI) . MIC SUM
A[0] H18 ADD0 DVDIo4 P11 . C568 0.1u R702 R709 R711 2 VDD 7 R773 IC703
A[1] J18 ADD1 DVDIo3 L14 C569 0.01u MOD 2.2k 100k 100k - + 0 BU7462NUX
A[2] K18 ADD2 DVDIo2 H14 C570 1u 3 + - 6 .
A[3] L18 ADD3 DVDIo1 E13 . 4 VSS 5
A[4] M18 ADD4 DVDD10 E7 . C572 . 0.1u C743
A[5] N18 ADD5 DVDD9 M5 . C573 0.1u VCO MOD/VREF . 47p
A[6] J17 ADD6 DVDD8 N5 . C574 0.1u 0.1u R748
A[7] K17 ADD7 DVDD7 P9 P10 C576 C575 . 0.1u DC Switch(System) Q501 100k .
A[8] M17 N17 ADD8 DVDD6 N14 . C577 0.01u FK330301 C735
A[9] A[10] P17 ADD9 DVDD5 M14 C578 1u 10u
A[11] K16 ADD10 DVDD4 G14 .
A[12] L16 ADD11 DVDD3 F14 . D
A[13] M16 ADD12 DVDD2 E9 L510 D ASQDET R722 100k .
A[14] P16 ADD13 DVDD1 E8 D /H_L C723 47p .
A[15] J15 ADD14 GPIo11 B5 SBC R738
A[16] K15 ADD15 GPIo10 C6 /SAVE ASTSW 10k
A[17] M15 ADD16 GPIo9 B6 Reverse
A[18] N15 ADD17 GPIo8 A6 BRF/Buffer Current Prevention
A[19] P15 ADD18 ADD19 GPIo6 GPIo7 U8 BUCNT2 . AMP(SQ)
A[20] J16 ADD20 GPIo5 R8 BUCNT1 BU7242NUX IC705 R:4.75V
CN504 H15 ADD21 GPIo4 R7 MKEYO T:0V .
D[0] G17 DT0 GPIo3 T7 MKEYI . . R741
D[1] H16 DT1 GPIo2 V10 EMG C702 C705 47
D[2] G15 DT2 GPIo1 U9 /OVRB 1000p 47p 100p . Noise Detector
D[3] F18 DT3 IC507 GPIo0 V9 /INT15P . R720 .
D[4] F17 DT4 ASIC IC507 SIMRST T9 /IGN . C719 330k C741
D[6] D[5] G16 DT5 ASIC SIMCK D12 C11 POWER Q701 100p 3.3V
D[7] E18 DT6 SIMDT C12 /BINT FK330301 33A_2 . 0.22u
D[8] F16 E17 DT7 SYMTIM R5 /SYMTIM SQL Noise BW Switch C732
D[9] D18 DT8 FSDET R6 FSDET TXC LPF 1000p .
D[10] D17 DT9 TXRVE R2 DSW Q702
D[11] B15 DT10 TRAMP P3 GLED 1 VDD 8 KTC4075E(Y,GR)
D[12] D16 DT11 TMoD P2 RLED . . 2 7 . . . Noise AMP
D[13] C15 DT12 PSTPA M4 R599 33M ASQAPC R701 R706 3 - + 6 R724 R730 C733
D[14] D15 DT13 PSTIF R1 100k MM 10k 82k + - 47k 47k 4.7u
D[15] E15 DT14 PSTPLL N3 MM2 4 VSS 5
/WR A15 DT15 RXRVE N2 /T_R .
/RD A16 WRITE READ RXSLT PSRRF P1 RXC BU7242NUX IC702
B14 BHE PSRIF L4 HSW
C14 BLE PSRPLL M2
CN425 A13 CS4 RSSIT M3
/CS3 D13 CS3 VFRM N1 /DWUP
/CS2 C13 CS2 VoINT D8 /DINT
B13 CS1 MCo2 D7 C579 0.01u
/CS0 A14 CS0 MCCS2 C7 C580 0.01u . . .
/HRDY /HDS2 B12 HRADY MCCK2 D10 PCB_VER D BEEP R772 C776 R783
D14 HDS2 MCCR1 C8 D9 DSP_ST 15k 10k 0.039u 150k 3.3V
TXD0 RXD0 R18 T18 TXD0 MCCX1 B7 /MCCSXCN
CN426 RTS0 R16 RXD0 MCo1 C9 HOST_RDY MCDICN
CN427 CTS0 R15 RTS0 MCI1 B8 MCSCKCN . . . RX SUM
TXD1 U15 CTS0 MCCK1 A7 /MCCSAF VOICE R826 C808 R827 AMP/LPF(RX AF)
HOOK_RXD1 T15 TXD1 MCCS0 B10 MCDOAF 10k 0.068u 82k .
TXD2 V15 RXD1 MCo0 B9 MCDIAF BU7462NUX IC711
RXD2 V14 TXD2 MCI0 D11 MCSCKAF
R611 T14 RXD2 TXD3 MCCK0 A8 . . 1 VDD
10k R3 PLD RXAF C746 R754 2 +
R685 0.1u 56k 3 -
10k C558 D D + -
R552 4.7k 0.1u 4 VSS
C559
R553 4.7k D D R581 10u R584 C680 IF_DET .
100k 47k C777
R687 0.1u 0.1u
10k C544 CN507 CN428 CN509 C560 3p
R559 DGND R583
3.9k 0.1u C545 100k
R554 D R580
3.3k 10u D D 3.3k
B-BUS B-BUS B-BUS B-BUS
AF AMP THP1
Q704 Q703,704
MIC AGC IC714
B-BUS /T_R
TEMP L1
. . 6.5V
R823 C806 AC 1.44V 6.3V AC Bias
SPAF . Bias 1.44V .
12k 1u C797
R819
. . . . 2.2k . 0.22u R811 GND1 VCC
C791 MI2 R816 C796 R820 C798 . 10k
. Mute(MI2) 10u 10 12k 1u . 2.2k F701 GND2
. . . Q706 . PAAF 0.22u SB oUTPUT
R787 C782 C812 SSM3J15FS C790 MI1 SSM6N37FE Q709 2.7V . 2.5A . X1
12k 0.1u 10u 10 10u 10 . R813 . CP703 L77-3073-05 C3
. R847 1k C622 0.01u
Mute(MI1) Q705 . 22k . . 0.01u
SSM3J15FS J701 TC7WBD125AFK IC512
R846 . 100kX4 . AVR(33C)
22k . 1 oE1 VCC 8 R636 470k . IC409 3.3V
Q708,709 LTC014EEBFS8 Q708 I2CCK A1 2 50M R825 NJM2878F4-33
AF Mute Switch I2CDT B2 3 oE2 7 19 F34CNT 0
4 GND B1 6 20 SCL Io1.2 12 F2CNT
A2 5 SDA . Io1.1 11
21 VDD I/O Expander IC515 Io1.0 10 F1CNT
. . . Leval Shift 22 INT PCA9535BS VSS . D505-510
R751 R756 C784 23 9 CP705 50C
100k 1k 10u A1 Io0.7 8
33A_2 24 A2 Io0.6 7
/INT15P 100kX2
SDO0 SBC2
. /EVCS SCK0 .
C778 CP704
. 1u 10 DC/DC Converter D408,409
C779 100p
. D408 D409
. 100kX4 . J501
CP706 R664 DB2S310 DB2S310
7 VoUT3 VoUT2 R667 FNC1 1 6
CN710 VoUT4 8 24 100kX2 0 100 C634 11
9 D/A Converter . VoUT1 23 5 R668 100p FNC6 2 7 80C R429 R431
VIN4 IC712 VIN1 22 . 9 470 C635 12 0 0
ASQ 10 VIN5 R2A20178NP VIN8 21 17 R662 3 8 DC/DC Converter
. . 11 VoUT5 VoUT8 DEO . R669 100p FNC2 13 9 2SC4738(GR)F Q415
1SS422 D702 R750 12 20 R796 C788 DATO DATO 0 100 . C636 4
39k VoUT6 VoUT7 19 0 4.7u 50MC R506 100p 50MC 10 14
. 0 C637 5
20 /IGN /IGN R659 11 15
18 R670 100p FNC3 DC Switch(150C)
DATAI DATAI 0 100 C638 Q414
SP2 SP2 12 . 100p SP2 EMD9
F1CNT R663 C639
F34CNT 7 . 13 20kHz
F2CNT . R658 R671 100p FNC4
SB 14 R660 0 100 C640
. 19 D705 D706 100p
DI R797 EMZ6.8N EMZ6.8N 50MC R634 C641 DATO
Dual BUS Buffer RXD_FNC2 100
0 33M . 10 R672 100p FNC5
IC514 R665 470 C642
TC7WH126FU-F R626 100p DATAI 3.80V L302
D705,706 1 G1 100 560n R306 R315
Line Protection 2 A1 VCC 8 . C643 330k 3 0
G2 7 SB F501 0.022u R303 C315 1
. CTS0 3 Y2 Y1 6 . C644 1k 0.01u 2 Q303 Tripler
R837 4 GND R666 100p 0.64V 2SC5108(Y)F
5.6k A2 5
C624 RS-232C Driver 6
ADM202EARNZ IC516 DC Switch(Horn Alert) .
. . D512,513 D504 0.01u R657 R661 R643 3 . CF1
C704 R703 MIC/RX Reverse Current Prevention RXD0 9 R2oUT R2IN RXD 4.7k 47k 0 C307 R308 L72-1017-05
Selector(BINT) . . DB2S310 10 T2oUT TXD 8 Q502 0 IN oUT
1u 10 . TC7W53FK(F) IC713 R637 1k RXD0 Reverse Current Prevention RTS_FNC3 11 T2IN 7 0.1u
. . Dual BUS Buffer T1IN V- 6 MTM981400BF Q503
8 R705 5 A GND 4 D513 R638 1k CN720 50M 12 R1oUT C2- C628 5 1u 25 .
7 68k . 6 CH1 3 DB2S310 D_RXD2 IC513 13 R1IN C2+ LTC014TEBFS8 1000p R641 .
6 R710 7 VEE 2 . Line Protection F34CNT TC7WT126FU-F 14 C629 4 1u 25 C632 1 0 . CF2
5 56k 8 CH0 INH D512 1 G1 8 15 T1oUT C1- 3 C630 1u 25 DC Switch(Horn Alert) L72-1040-05
VCC CoMMoN 1 DB2S310 RTS0 2 A1 VCC 7 GND V+ 2 IF_DET C337 oUT IN
. CN707 G2 6 50MC 16 VCC C1+ 1 . 0.1u
C786 3 Y2 Y1 9.9V DC Switch(IGN) .
4 GND 5 LTC014TEBFS8 Q504 R674
0.1u A2 C627 1M
1u 25
CN705 -9.9V
TXD_FNC1
TXD0
SP+ SP+ SP+ SP+
SP-
SP- SP- SP-
MIC MIC MIC MIC MIC
ME ME ME ME
B-BUS B-BUS
POWER POWER
THP1 THP1 R80 R86
50C 50C R50 0 0
56 R81 R87
/T_R /T_R 0 0
. 33C 33C R:4.61V T:4.62V R82 R88
3.31V C31 FIN FIN C37 C43 C50 C60 0 0 R83
. 100p 8p 100p 7p 4p 0 25℃ : 2.6V .
. C10 0.01u 2SC5108(Y)F Q5 Buffer AMP R:2.9V THP1 THP1 L105
C11 0.01u L4 (PLL Fin) T:2.82V
10n T:2.49V R:2.7V
. . .
13 NC_1 CPout 6 R19 R20 R24 L5
14 5 0 0 390 R34 PLL f-in BPF Tune PLL f-in BPF Tune R:4.00V
NC_2 . VCCcp . 1.8k RX VCO T:0V Buffer AMP R:3.56V R:0.03V L104
. 15 NC_3 IC2 LD/PS 4 . RX VCO Q6 R58 R:3.79V R:1.56V Q11 T:3.76V D17 T:3.22V Drive:2.6dBm 33n L106
L2 R72 16 NC_4 SKY72310-362 Fin 3 C20 C24 Frequency Control RX VCO Assist Tune RX VCO MCH3914(7)-H 22 T:3.76V T:1.35V 2SC5108(Y)F C89 RKS151KJ C101 L130 R103 C104 C119 C121 39n (-92)
4.7u 1k 17 PLL System Fin 2 100p . . 0.1u R37 L6 C44 D7 C55 R:0.86V R:0.72V R61 C81 C84 15p R:2.01V 1000p 56n 0 1000p TX Drive AMP 27p 6p
18 NC_5 1 R10 C25 0 10u 100p 1SV282-F 39p T:0V T:0.68V 150k 22p 15p T:2.48V Q102 2SC3357-A
NC_6 VCC . 10 100p C77 T:1.97V R:1.21V D16,17
. C22 . 0.5p T/R Switch
L3 R14 2SC5108(Y)F Q10
. 0.1u 47k Buffer AMP
C23 . R:0V
. 100p C26 100p Over Voltage Protection R35 D9,10 T:3.9V L103
. C16 100p 0 TX VCO RX VCO Assist Tune TX VCO Q7 R57
C17 . 100p DC Switch Frequency Control TX VCO Assist Tune MCH3914(7)-H 22 L26 R:2.75V T:0V
C18 . 100p (Assist) . R38 L7 C45 D8 C54 TX VCO R:0V
C19 100p LTC014EEBFS8 Q1 0 10u 330p 1SV282-F 180p T:1.08V
. C76
Q2 0.5p
2SJ648-A DC Switch(50C)
DC Switch (Assist) R:0V
T:4.02V
. T/R VCO Switch
R28 R36 FM Modulation R:4.08V T:0V Q106
10M 0 D11,12 Q8 SSM3J15FS Q9 EMD5
R435 . TX VCO Assist Tune . . 4 EM6M1 3 80T
C51 R44 R52 5 2
13.9V 150C 0 . CV BD7542FVM IC3 1u 27k 470k
R13 6 1
1 oUT1 VDD 8 T/R VCO
47k 2 Switch R:3.28V T:0V
100k 3 - + 7 . L19 R56
DC/DC Converter 4 VSS + - 6 ASSIST R26 0
Q416 DC AMP 5 1k Ripple Filter R:4.09V T:4.06V
2SA1832(GR)F (CV/Assist) .
. C28 100p Q4 R:0.0V
C30 1u 25 2SC5383-T111 T(25W):2.0V T(5W):1.5V
Speed up R:4.76V
150C 150C T:4.74V
3.3V
B-BUS B-BUS B-BUS B-BUS
CN302 L204 L205 . .
C322 CN304 33n 39n C218 L220
100p . 4.51V CN203 R204 C211 C213 2p 270n
C316 L304 C324 C359 4.7k 6p 3p 4.61V
10p 56n 33p 0.01u C254 L221
. FM System . CN205 CN204 CN206 R249
C330 TK10931VTL-G IC303 . . 4.7k 12p 5.6n
C347 C371 R355 C367 4.77V
0.1u 1 OSC<B> RFin 24 0.01u 0.01u 0 D202-207 4.60V
4.70V 2 OSC<E> GND 23 . 0.01u 1st IF AMP C361 BPF RX BPF Tune . LNA
3 MIXo C345 . 0.1u Q305 XF1 49.95MHz R259 C251 Q202 1.36V
. 4 VCC COMPo 22 R342 2SC4215-F(Y) 0.01u L71-0678-05 fC:4.96V f L:2.28V 0 5p NESG240034
C313 R323 C327 COMPi 21 100k 0.96V R394 L301 L317 L319 C360 L203 . fH:8.93V
0 . R332 0 5 AMIFi NAMPo 20 . . 180 150n 390n 180n 0.01u 270n C216 R223
0.1u . 0.1u . C332 0.1u 6 AMIFdecp C342 R345 R203 3SK318 Q201 0 . .
R326 C333 . 0.1u 7 FMIFi NAMPi 19 1u . 0 680 RX 1st Mixer C215 1000p R230 . 150C R257
330 C334 0.1u 8 FMIFdecp1 AGC 18 R344 DC AMP(RSSI) 1000p 0 IC201 100k
CN303 . AGCAMPo 17 2.7k IC304 3.30V BD7542FVM 13.94V
. C335 . 0.1u 9 FMIFdecp2 RFAGCo 16 BU7445HFV 1 oUT1
. C326 10p 10 LIMo R350 1 IN+ 5 VDD 8
R337 C343 11 QUADi RSSIo 15 . 10k R358 2 VSS VDD 2 - + 7 fC:3.58V f L:2.50V
1k 0.1u 12 FMDETo AMSW 14 R343 33k 3 IN- 4 3 fH:5.21V
AMDETo 13 22k oUT 4 VSS + - 6
5
150C 150C
C351 DC AMP(BPF) .
100p . C239 0.1u
C240 1u
CN306
SP+ SP+ SP+ SP+
SP-
SP- SP- SP-
MIC MIC MIC MIC
ME ME ME ME
B-BUS B-BUS B-BUS B-BUS
POWER POWER POWER POWER
DISPLAY UNIT (X54-3830-10)
LCD
D 1 1-21,24
LCD BACKLIGHT
D11 D15 D 1 9
R34
CN14 CN10 CN11 270
2.07V
TX Power Module D12 D16 D 2 0 R35
IC102 C15 CN12 CN13 .
RA60H1317M1A R1 270
0 D13 D17 D 2 1
R36 R 2 9
. COUPPLER 2 7 0 2 2 0
R:13.6V L407CDB D110
. 15dBm T:12.8V(25W) D110,111 D14 D18 D24 R37 R28
R122 Antenna Switch C177 Forward Power
. 22 . (36dBm:5W) D111 . 100p . 270 1 2 0
R123 C136 L115 L407CDB C178 L116 L117 R171 ANT B30-2337-05 Q8
22 470p 5T 100p 0 K TC 4 0 7 5 E (Y , G R )
T(25W):2.9V R:0.0V 3216 Reverse Power LCD BACKLIGHT
T( 5W ):2.5V SWITCH
R:0.0V
3216 T:1.6V .
CN514 KEY BACKLIGHT 9.72V
SideA 3216 SB . 1 SB SWITCH
C621 INT SP
2 SB Q 9
1000p SP+ QST7
3 SP- 12.93V
4 SP-
Over Voltage Protection SP-
5 KTC4075E(Y,GR)
SP+ R42 Q11
LCDCS . 6
+B D104,105 SCK0 C620 100p SP+ HOOK:4.96V 2.7k
T:7.8V R:0.0V R:0.0V TX Power Detection BLC . 7 PTT:4.62V
T:7.8V SDO0 C618 100p BLC SB:13.53V SWITCH CONTROL KEY BACKLIGHT
80T D112-114 Over Voltage MBL . . 8 MBL J 1 MBL:5.00V 4.82V
. Antenna Switch Over DC Supply Protection Protection CP515 C617 100p DM
. R138 . 9 RLED HOOK
Transient C145 10k 25℃ : 2.6V DZ2J056(M) D106 C616 100p MIC 4.62V
Voltage . limiter OP AMP(APC) . 100X2 . 10 GLED MIC ME
D102 0.1u IC103 C165 470p 470p C158 C615 100p PTT D 1 D 2
DA3S101F NJM12904RB1 BLED . 11 BLED GND SB SURGE VOLTAGE
. 1 5V_TXD2 . C614 100p R 1 2 PROTECTION PROTECTION
MP R130 . 2 8 R:0.0V Reverse C661 12 GND MBL
27k R131 3 - + 7 . T(25W):2.1V T(5W):0.8V Current Prevention 5V_TXD2 47p 5.0V 1 0 0
10k + - 6 R149 R158 R152 D103 13 GND 13.5V
4 5 33k 1k RKS151KJ CN530
. 10k 14 GND D 2
C155 470p . . 15 DA3S101F
. Over DC D108,109 BUS Buffer IC511 C613 0.01u EMG
(H/L Power) DC Switch . R141 Supply Protection TC74VHCT244AFK 16
. Q105 GND CN1
R137 100k FK330301 33k D108 1 SB
R:(H:0.0V/L:3.3V) RB520SM-30 EMG 17 NC 2
T(25W):0.0V D109 50C . 18 50C SB
T(5W):3.3V GLED C612 100p 3 SP-
RB520SM-30 RLED . 19 LCDDI 4
. C611 47p 5 SP+
TXD2 CP516 . 20 LCDCE
C610 47p 6 5.0V
. 21 LCDCL 7 BLC R7
R617 0 R 1 7
100X4 22 LCDDO 8 MBL
C258 C262 C233 C231 R:0V 0 9 RLED 0
T:0.79V 23 GND 1 0 GLED
15p 1000p 6p 6p SDI0
L232 L233 . 24 GND 11 BLED
39n 39n BUCNT1 R616 . 25 1 2 GND
TXD1 470k C607 100p MIC
. 26 13 GND
R614 0 ME 1 4 GND
Dual BUS . 27 15 EMG R 5
Buffer . C605 100p HOOK
Reverse D511 TC7WT126FU-F IC716 . 28 PTT 1 6 GND 1k
Current C604 1000p 17 NC 5.0V
Prevention . 29 MKEY 1 8 50C 50C L 1
MKEYO C603 100p
BUCNT2 . . 30 POWER 19 LCDDI CP1
/PTT D511 C602 0.01u 2 0 LCDCE
DB2S310 . 21
. C651 LCDCL R 2 R 3
R684 0.1u 2 2 LCDDO 1 0 k 10k
23 GND 1 0 0 X4
HOOK_RXD1 47k B30-2321-05 R:0V
33M 2 4 GND D22 T:4.95V T:0V R:4.95V
25 MIC LED OFF:0V
2 6 ME LED ON:2.26V T:1.81V R:5.0V R:2.13V T:5.0V
R 3 8 R 3 9
SP+ SP+ Dual BUS Buffer . 27 HOOK
SP- SP- MKEYI IC509 2 8 PTT 4 . 7 k Q 3 Q6 4.7k
MIC TC7WH126FU-F 29 MKEY K T C 4 0 7 5 E( Y, G R ) KT C 4 0 7 5 E (Y , G R ) Q3
MIC . . LED OFF:0V R:0V R:2.06V TX LED
D502 R615 3 0 POWER POWER LED ON:5.0V Q 1 0 T:1.76V T:0V SWITCH
ME ME . LTC014EEBFS8 D23 Q6
DB2S310 4.7k R613 3.27V TX LED B30-2151-05 BUSY LED
Reverse 10k SWITCH D 2 2 TX/BUSY SWITCH
Current Prevention CONTROL INDICATION INDICATION
B-BUS B-BUS (BLUE)
POWER POWER POWER
5.0V
D 5-9
KEY BACKLIGHT
3.77V
D5 D 8 R 2 4
B 3 0 -2 3 3 7 -0 5 B 3 0 -2 3 3 7 -0 5 3.3k
3.77V
D6 D9 R25
B3 0 -2 3 3 7 -0 5 B 3 0 -2 3 3 7 -0 5 3.3k
1.89V
D7 R26
B 3 0 -2 3 3 7 -0 5 4.7k
B C
KMO1
S A
KMO2
KMO3
KMO1 D 2 6
KMO2
KMO3
H N 2 S0 3 FE
KMI1 3 2
49 KI1 S32
KMI2 50 KI2 S31 3 1
KMI3 51 3 0
KI3 S30
52 KI4 S29 2 9
53 2 8
54 KI5 S28 2 7
VDD S27
55 VLCD LCD DRIVER S26 2 6
56 2 5
57 VLCD1 I C 1 S25 2 4
R 4 VLCD2 LC75857W-E S24
10k 58 VSS S23 2 3
59 2 2
T E S T S22 2 1
60 oSC S21
61 D o S20 2 0
62 1 9
C E S19
63 C L S18 1 8
64 1 7
D I S17