Kenwood ProTalk TK-3301 Service Manual Download Page 33 | Manualshive

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TK-3301

33

BLOCK DIAGRAM

Low Pass

Filter

ANT

D104,D106:HVC131

D103:HSC277

Switch

Final
Amp

Q106:

RD02MUS1BT112

Q103:

RD01MUS1-T113

Drive

Amp

5T

RF Amp

1st

Mixer

RF Amp

5R

5R

Q204:3SK318

Q203:

3SK318

5C

Q11:2SC5636

Buffer

Amp

Q9:2SC5636

XF201:L71-0549-15

1st IF:38.85MHz

5C

Ripple

Filter

Q6,Q10:

KTC4075E(Y,GR)

(V)

RF Amp

Q3:2SC5636

5C

IF Amp

Q202:2SC4774

5R

5C

CD201:L79-1866-05

5R

1st Local
: 407.15MHz

0MHz

50kHz

BUSY

FM IF IC

IC201:

TA31136FNG

Tx/Rx

ANT

Rx: 446MHz

RXD

5M

Q310:2SC4116(GR)F

MIC_MUTE

D306:KDR731

VOX

IC309:

TA7368FG

MOD

1/2_OSC

DIR

Audio Prosessor

IC308:AQUA-L

5M

RSSI

SP/MIC Jacks

Speaker

Detector

Tx: 446MHz

Pre-drive

Amp

Q102:

2SC5455-A

DI/O

TXD

SB

5T

B

B

F

Oscillator

446MHz

Tx/Rx

Switch

5T 5R

MCF

Q312:RT1N441U

Q313:

2SB1694

Switch

Mute

Q314:RT1N441U
Q315,Q316:2SK3577-A

OPTDET

AFVOL_OUT

Switch

Switch

Q311:2SA1586(Y,GR)F

Q308:KTC4075E(Y,GR)

D308,D309:KDR731

DET

DET

STD

DTMF

Limiter

D307:MC2850

5T

RF Amp

Q101:2SC5636

5T

Q107:RT1N441U

IC101:
BA2904FVM

Switch

Switch

APC_SW

Switch

PCTV

APC

TH101

Q108:2SK1824-A

Protector

B

APC_SW

TH_DET

Q109:RT1P441U

D101:UDZW5.1(B)

T07-0369-15

E11-0703-05

DTRLOADN

SCLK

TDATA/DTRCLK

AFVOL_IN

QT/DQT_IN

RDF/FD

TCLK/DTRDO

Mic

AGC/
Mute

Mic

T91-0651-15

MIC301:

AF_CONT

AF

Power

Amp

Discrimi-

nator

Tempera-

ture

Detector

D10:MC2858

Band

Pass

Filter

Band

Pass

Filter

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Summary of Contents for ProTalk TK-3301

Page 1: ... REPAIR 4 CIRCUIT DESCRIPTION 7 SEMICONDUCTOR DATA 10 COMPONENTS DESCRIPTION 11 TERMINAL FUNCTION 11 PARTS LIST 12 EXPLODED VIEW 18 PACKING 19 ADJUSTMENT 20 PC BOARD TX RX UNIT X57 7772 70 24 SCHEMATIC DIAGRAM 28 BLOCK DIAGRAM 32 LEVEL DIAGRAM 34 SPECIFICATIONS 35 Antenna cover F07 1882 23 Button knob PTT K29 9425 03 Button knob Side1 Side2 K29 9426 03 Knob Selector K29 9427 03 Knob Volume K29 930...

Page 2: ...g replacement parts or equipment informa tion the full part identification number should be included This applies to all parts components kits or chassis If the part number is not known include the chassis or kit number of which it is a part and a sufficient description of the re quired component for proper identification PERSONAL SAFETY The following precautions are recommended for personal safet...

Page 3: ... LED lights When data is written to the transceiver the green LED lights Note The data stored in the personal computer must match Model Name and Model Type when it is written into EE PROM Do not press the PTT key during data transmission or reception 3 3 KPG 22 KPG 22A Description PC programming interface cable Option The KPG 22 22A is required to interface the transceiver with the computer It has...

Page 4: ... 5 Remove the solder of the positive terminal with a solder ing iron i Note You can remove the TX RX unit from the chas sis without removing the solder at the positive terminal However in this case you can not attach the packing G53 1605 03 that is on the positive terminal to the chas sis in assembling So it is advisable to remove the solder on the positive terminal first 6 Remove the FPC from the...

Page 5: ...it snaps into place r Caution Be careful not to tilt the battery release lever too forward If the battery release lever is pushed in this state where the two tabs come below the case surface there is a possibility of damaging the two tabs A thin spring Shaft Tow tabs A thick spring 5 Assembling the Battery Release Lever 1 Place the lever w onto the stopper q 2 Place the thick spring e onto the lev...

Page 6: ...he packing of the SP MIC does not come to the correct position after attaching the chassis to the case assembly reposition the packing with your fingers Confirm that the waterproof packing is securely inserted in the groove of the chassis DISASSEMBLY FOR REPAIR 8 The Nuts of the Volume Knob and Channel Knob Note that the shapes colors and heights of nuts of the volume knob and channel knob are dif...

Page 7: ...ircuit The first IF signal is passed through a four pole monolithic crystal filter XF201 to remove the adjacent channel signal The filtered first IF signal is amplified by the first IF ampli fier Q202 and then applied to the lF system IC IC201 The IF system IC provides a second mixer limiting amplifier quadrature detector and RSSI Received Signal Strength In dicator The second mixer mixes the firs...

Page 8: ...to talk switch input signal D4 8 Q5 VCO Q9 BUFF AMP Q3 BUFFER Q11 RF AMP LPF LPF REF OSC 1 M 1 N Phase comparator Charge pump 5 or 6 25kHz 5 or 6 25kHz PLL DATA X1 12 8MHz IC1 PLL IC Fig 4 PLL circuit 4 Transmitter System Microphone Amplifier The signal from the microphone passes through the IC308 When encoding DTMF it is turned OFF for muting the microphone input signal by IC308 The signal passes...

Page 9: ... has a circuit that shifts the frequency by BEAT SHIFT SW Q305 Q306 A beat sound may be able to be evaded from generation if Beat Shift is set to ON when it is generated in the inter nal spurious transmission modulated sound of a transceiver X301 XOUT XIN BSHIFT Q305 Q306 IC306 MCU Hi ON Low OFF Fig 7 Frequency shift circuit CIRCUIT DESCRIPTION Memory Circuit Memory circuit consists of the MCU IC3...

Page 10: ...o function 45 TXD O Serial data output SEMICONDUCTOR DATA Pin No Signal Name I O Function 46 RXD I Serial data input 47 DIR O Baseband IC data output 48 DI O I O Baseband IC data input output 49 DTRLOADN O Baseband IC data output 50 TDATA DTRCLK O Baseband IC data output 51 SCLK O Serial clock for baseband IC 52 TCLK DTRDO I Baseband IC data input 53 RDF FD I Baseband IC data input 54 MDSW I No fu...

Page 11: ...switch Green color LED Q303 Transistor DC switch 5R Q304 Transistor DC switch 5T Q305 306 Transistor Beat shift switch Q308 Transistor Rectification Q310 311 Transistor MIC mute Q312 313 Transistor DC switch Q314 Transistor Mute switch Q315 316 FET Mute switch D2 4 8 Variable Capci tance Diode Frequency control VCO D9 Variable Capci tance Diode Modulator D10 Diode TX RX RF switch D101 Zener diode ...

Page 12: ...iolet ppm C 0 80 150 220 330 470 750 Tolerance More than 10pF Code C D G J K M X Z P No code 0 25 0 5 2 5 10 20 40 80 100 More than 10μF 10 50 20 20 0 Less than 4 7μF 10 75 Voltage rating 2nd word A B C D E F G H J K V 1st word 0 1 0 1 25 1 6 2 0 2 5 3 15 4 0 5 0 6 3 8 0 1 10 12 5 16 20 25 31 5 40 50 63 80 35 2 100 125 160 200 250 315 400 500 630 800 3 1000 1250 1600 2000 2500 2150 4000 5000 6300 ...

Page 13: ... 3B N14 0848 05 CIRCULAR NUT SELECTOR B 3B N14 0849 05 CIRCULAR NUT VOLUME C 3A N30 2606 48 PAN HEAD MACHINE SCREW D 2A 3A 1B N83 2005 48 PAN HEAD TAPTITE SCREW 50 2C N99 2046 05 SCREW SET ACCESSORY 52 2A R31 0670 15 VARIABLE RESISTOR 54 2A S60 0440 05 ROTARY SWITCH 56 1B T07 0369 15 SPEAKER 57 2A T90 1043 15 ANTENNA ELEMENT 59 1D W08 0988 05 CHARGER 60 1D W08 0992 05 AC ADAPTER E 61 1D W08 0993 0...

Page 14: ...CH1H101J CHIP C 100PF J C321 CK73GB1A105K CHIP C 1 0UF K C322 CC73HCH1H101J CHIP C 100PF J C323 CK73GB1A105K CHIP C 1 0UF K C325 CC73HCH1H101J CHIP C 100PF J C327 CK73HB1H471K CHIP C 470PF K C66 CK73HB1H471K CHIP C 470PF K C67 CC73HCH1H050B CHIP C 5 0PF B C69 CK73HB1H471K CHIP C 470PF K C71 CC73HCH1H0R3B CHIP C 0 3PF B C72 CK73HB1A104K CHIP C 0 10UF K C74 75 CK73HB1H471K CHIP C 470PF K C76 CS77CP0...

Page 15: ...H L6 L40 5681 86 SMALL FIXED INDUCTOR 0 56UH L7 L92 0138 05 CHIP FERRITE L8 L40 1875 71 SMALL FIXED INDUCTOR 18NH L9 L92 0470 05 CHIP FERRITE L10 L40 1885 92 SMALL FIXED INDUCTOR 180NH L12 L40 1875 71 SMALL FIXED INDUCTOR 18NH L14 L40 1885 92 SMALL FIXED INDUCTOR 180NH L16 L40 2778 67 SMALL FIXED INDUCTOR 27NH L17 L41 2785 45 SMALL FIXED INDUCTOR 270NH L20 L40 1885 92 SMALL FIXED INDUCTOR 180NH L2...

Page 16: ... 1 16W R137 RK73FB2B000J CHIP R 0 0 J 1 8W R138 RK73GB2A151J CHIP R 150 J 1 10W R140 RK73GB2A000J CHIP R 0 0 J 1 10W R141 RK73HB1J000J CHIP R 0 0 J 1 16W R201 RK73HB1J823J CHIP R 82K J 1 16W R203 RK73HB1J472J CHIP R 4 7K J 1 16W R204 RK73HB1J100J CHIP R 10 J 1 16W R205 RK73HB1J823J CHIP R 82K J 1 16W R206 RK73HB1J272J CHIP R 2 7K J 1 16W R207 RK73HB1J332J CHIP R 3 3K J 1 16W R208 RK73HB1J823J CHIP...

Page 17: ...K J 1 16W R371 RK73HB1J272J CHIP R 2 7K J 1 16W R372 RK73HB1J000J CHIP R 0 0 J 1 16W R373 RK73HB1J224J CHIP R 220K J 1 16W R374 RK73HB1J153J CHIP R 15K J 1 16W R375 RK73HB1J182J CHIP R 1 8K J 1 16W R376 RK73HB1J471J CHIP R 470 J 1 16W R377 RK73HB1J473J CHIP R 47K J 1 16W R378 RK73HB1J561J CHIP R 560 J 1 16W R379 RK73HB1J102J CHIP R 1 0K J 1 16W R380 RK73HB1J474J CHIP R 470K J 1 16W R381 RK73HB1J15...

Page 18: ...52 54 33 24 23 27 38 30 37 13 2 18 29 26 25 12 A N14 0848 05 B N14 0849 05 C M2 6 x 6 N30 2606 48 D M2 x 5 N83 2005 48 22 32 101 X57 X57 40 Parts with the exploded numbers larger than 700 are not supplied If a part reference number is listed in a box on the exploded view of the PCB that part does not come with the PCB These parts must be ordered separately ...

Page 19: ...nstruction manual B62 2154 00 703 Protection bag 59 Charger W08 0988 05 60 AC adapter W08 0992 05 E 61 AC adapter W08 0993 05 T 41 Belt hook J29 0734 05 39 Holder SP MIC J29 5521 03 50 Screw set N99 2046 05 704 Packing fixture 705 Item carton case 706 Battery assy 1 1 702 Pamphlet 5 Cap B09 0725 03 ...

Page 20: ...my Load Approx 8Ω 3W 14 Regulated Power Supply 5V to 10V approx 3A Useful if ammeter equipped Antenna connector adapter The antenna connector of this transceiver uses an SMA terminal Use an antenna connector adapter SMA f BNC f or SMA f N f for adjustment The adapter is not provided as an option so buy a commercially available one Repair Jig Chassis Use jig part No A10 4125 03 for repairing the tr...

Page 21: ... 09375 446 09375 ADJUSTMENT Signaling Signaling No RX TX 1 None None 2 None 100Hz Square Wave 3 QT 67 0Hz QT 67 0Hz 4 QT 151 4Hz QT 151 4Hz 5 QT 250 3Hz QT 250 3Hz 6 DQT D023N DQT D023N 7 DQT D754I DQT D754I Preparations for Tuning the Transceiver Before attempting to tune the transceiver connect the unit to a suitable power supply Whenever the transmitter is tuned the unit must be con nected to a...

Page 22: ...Method 1 Frequency Adjust 1 CH 5 1 PTT ON f counter ANT cable TX RX VR1 446 05625MHz 50Hz 2 Low Transmit Power 1 TEST CH 5 1 Power meter Ammeter FPU 0 6W 0 05W 0 8A or less 3 Maximum Deviation 1 TEST CH 6 1 AG 1kHz 150mV Deviation meter filter LPF 15kHz HPF OFF PTT ON Power meter Deviation meter Oscilloscope AG AF VTVM ANT cable SP MIC connector 2 2kHz According to the larger 50Hz 4 DQT Balance 1 ...

Page 23: ...X ANT cable BPF FPU Check the waveform as shown to the right 2 Sensitivity 1 TEST CH 1 1 SSG otuput 114dBm 0 44µV SSG MOD 1 5kHz SSG DVM Oscilloscope AF VTVM ANT cable SP MIC connector Check 20dB SINAD or more 3 Squelch Open 1 TEST CH 1 1 SSG otuput 122dBm 0 18µV SSG MOD 1 5kHz FPU Write 4 Squelch Tight 1 TEST CH 1 1 SSG otuput 116dBm 0 35µV SSG MOD 1 5kHz 5 Battery Warning Level 1 TEST CH 1 1 BAT...

Page 24: ...C2 C4 C6 C8 C9 Q303 Q305 Q306 L301 L303 R301 R304 R305 R306 R313 R314 R315 L7 R320 R321 R322 R323 IC1 X301 C316 R14 R15 C319 R16 R18 R19 C320 R22 C327 C332 C334 C335 R1 R7 IC301 IC305 IC306 CP302 CP1 C10 C11 C15 R318 VOX B GND 5R 5C PTT MOD LD 10 11 1 20 CN203 BPF GND 3 4 5 1 C37 MIC301 LV CV TK 3301 PC BOARD TX RX UNIT X57 7772 70 Component side view J79 0250 09 Ref No Address IC1 9G IC101 4N IC3...

Page 25: ...304 C320 C322 C402 C403 C411 Q312 Q313 Q314 Q315 L116 R114 R121 R127 R128 R129 R130 R131 R132 R133 R134 R136 TH101 C108 C112 C114 C128 C130 C137 C144 R379 R380 R390 D101 R393 IC101 IC309 C399 R384 IC301 5T PCTV SP SP TXD AE SPI SPO NC 5M OPTDET MIC PTT RXD MICIN 4 5 1 8 5 6 1 10 1 11 EN5 EN4 EN3 GND EN2 EN1 AFVOLGND AFVOLOUT AFVOLIN SB B J79 0250 09 ANT Q316 TX RX UNIT X57 7772 70 Component side v...

Page 26: ...C265 L103 L104 L105 CP203 R106 R111 R112 R116 C115 C117 C120 C126 L212 L213 R220 C224 C238 C240 C242 C249 C250 L207 L208 L209 L210 CP201 R103 C106 C109 C53 C58 C61 C66 C69 C72 C77 C80 D8 L16 L21 Q5 R33 J79 0250 09 S1 PTT J301 EXT SP EXT MIC TXD AE SPI SPO NC 5M OPTDET MIC PTT RXD MICIN D G D S G G G S D S2 SIDE1 S3 SID D G Q204 TK 3301 PC BOARD TX RX UNIT X57 7772 50 Foil side view J79 0250 09 Ref...

Page 27: ...392 C393 X1 C12 C14 R203 C18 R204 R207 R208 D9 R220 C224 R215 Q11 C225 C227 C228 C230 C84 C85 C86 Q101 L102 C290 C291 CP201 R102 R103 C103 C104 C106 C109 R41 R42 R43 R45 L203 L205 L250 C23 R211 C26 R212 C33 C40 C41 C42 C47 C203 C207 C208 C211 C61 C213 Q10 C215 C219 C66 C67 C71 C74 C77 D10 L4 L8 L9 L20 L21 R11 R13 Q2 Q3 R28 Q5 R37 R9 Q202 C13 C17 R205 R206 C50 C7 C306 R347 R359 C323 R360 Q9 R5 R8 V...

Page 28: ...R1 68k C310 1u C306 1u R15 560 C318 0 01u C313 100p C7 10p R1 18k D303 B30 2315 05 C312 470p S2 L302 C21 0 01u C1 3300p C11 10u D301 GN1G C303 100p C30 470p CN301 1 B 2 SB 3 AFVOLIN 4 AFVOLOUT 5 AFVOLGND 6 EN1 7 EN2 8 GND 9 EN3 10 EN4 11 EN5 C6 0 01u R303 100 C5 470p C25 30p C13 10p C3 1u R28 1k C32 3 3u16 C315 100p R14 10 C311 100p C12 470p CP1 RK75HA1J101J CN3 F301 F53 0321 05 1 5A PLL_STB EN4 5...

Page 29: ...9 VOX 70 QT DQT_IN 71 EEPCLK 72 EEPDAT 73 TH_DET 74 DTMF 75 AVSS 76 PCTV 77 VREF 78 AVCC 79 PLLDAT 80 PLLCLK L20 180n C332 5p B C44 1u THDET C78 33p C337 5p B L303 C71 0 3p C39 6800p PCTV D8 1SV325F 1 A0 2 A1 3 A2 4 GND 5 SDA 6 SCL 7 WP 8 VCC R43 470 L304 R394 47k C81 15p MDSW C86 10p C76 10u6 3 R317 4 7k R33 100 AFCONT MICMUTE D9 KDV214E P RESET R31 270k R313 1k 2SC4919 Q305 R45 5 6k L14 180n R32...

Page 30: ...k C381 390p C212 0 1u C222 470p R355 120k R122 27k C364 12p C361 1u R123 0 39 R364 100k R373 220k R128 150k D R217 3 3k R368 0 R102 27k C372 470p R205 82k C374 1000p Q107 RT1N441U C129 470p C360 0 1u C290 2p B C353 0 01u R113 100k R372 0 C373 120p D10 MC2858 C390 1u C120 470p RSSI C154 470p R131 1M R365 3 3k C127 22p C104 4p C215 0 01u R132 47k R129 330k D C365 82p C384 0 1u L102 33n R352 150k C10...

Page 31: ...R384 33k R222 120 R219 56k C397 0 47u C167 470p C155 3 5p 3SK318 Q203 D104 HVC131 R370 1k C224 0 1u C396 0 1u R380 470k C228 470p MIC C389 470p 2SB1694 Q313 C400 10u R379 1k C409 470p R378 560 L116 1u C250 470p C392 0 047u C249 13p R140 0 5M R137 0 C370 0 1u C227 18p L213 8 2n C146 12p R228 1k L203 560n C380 1u L112 4T C254 470p L202 3SK318 Q204 R385 100 Q312 RT1N441U R227 0 R218 56k C245 1p C253 ...

Page 32: ...age Voltage Switch Switch 5T_C 5R_C 5C_C IC303 XC6209B502PR 5R QTTCXO MOD QTVCO D4 D8 1SV325F D9 KDV214E P 5M Oscillator 446MHz B SB AFVOL_IN AFVOL_OUT EN1 EN2 EN3 EN4 EN5 IC304 XC6209B502MR Q304 DTB723YE Q303 RT1P141U DET Power Switch AF Volium R31 0670 15 Channel Selector S60 0440 05 D302 HRC0203C Rectifier Q1 KTC4075E Y GR Rectifier PLL_UL Switch Switch SB LED LEDRX LEDTX Q301 RT1N441U LED Q302...

Page 33: ...essor IC308 AQUA L 5M RSSI SP MIC Jacks Speaker Detector Tx 446MHz Pre drive Amp Q102 2SC5455 A DI O TXD SB 5T B B F Oscillator 446MHz Tx Rx Switch 5T 5R MCF Q312 RT1N441U Q313 2SB1694 Switch Mute Q314 RT1N441U Q315 Q316 2SK3577 A OPTDET AFVOL_OUT Switch Switch Q311 2SA1586 Y GR F Q308 KTC4075E Y GR D308 D309 KDR731 DET DET STD DTMF Limiter D307 MC2850 5T RF Amp Q101 2SC5636 5T Q107 RT1N441U IC101...

Page 34: ...IC308 C59 VCO PLL C51 C81 C86 RXLO D10 C109 Q102 Q11 C115 Q103 Q106 C170 To make measurements in the AF section connect the AC level meter ANT input 53dBm 1kHz FM 1 5kHz DEV In the RF section use 470pF coupling capacitor The display shows the SSG input value required to obtain 12dB SINAD without Local Level AG is set to the MIC Input becomes 1 5kHz DEV at 1kHz MOD To make measurements in the AF se...

Page 35: ...uency Stability 2 5ppm 30 C to 60 C Channel Frequency Spread 0 1MHz Dimensions and Weight Dimensions not including protrusions Radio Only 54 W x 122 H x 21 1 D mm 160g With KNB 29N 1500mAh battery 54 W x 122 H x 33 D mm 360g With KNB 45L 2000mAh battery 54 W x 122 H x 33 D mm 280g Receiver Measurements made per EN standards Sensitivity EIA 12dB SINAD 0 28µV EN 20dB SINAD 3dBµV 0 7µV Selectivity 60...

Page 36: ...d Herts Amsterdamseweg 37 1422 AC Uithoorn The Netherlands Via G Sirtori 7 9 20129 Milano Italy Bolivia 239 08020 Barcelona Spain A C N 001 499 074 16 Giffnock Avenue Centrecourt Estate North Ryde N S W 2113 Australia Unit 3712 3724 Level 37 Tower one Metroplaza 223 Hing Fong Road 1 Ang Mo Kio Street 63 Singapore 569110 CA 90801 5745 U S A Kwai Fong N T Hong Kong WD18 9EB United Kingdom L Etoile P...

Page 37: ...3 IC1 X301 C316 R14 R15 C319 R16 R18 R19 C320 C322 R22 C327 C332 C334 C335 R1 R7 IC301 IC305 IC306 CP302 CP1 C10 C11 C15 C402 C403 C411 Q312 Q313 Q314 Q315 L116 R114 R121 R318 R127 R128 R129 R130 R131 R132 R133 R134 R136 TH101 C108 C112 C114 C128 C130 C137 C144 R379 R380 R390 D101 R393 IC101 IC309 C399 R384 VOX B GND 5R 5C PTT MOD LD 10 11 1 20 CN203 BPF GND 3 4 5 1 C37 MIC301 5T PCTV SP SP TXD AE...

Page 38: ... C120 C126 L212 L213 R220 C224 C238 C240 C242 C249 C250 L207 L208 L209 L210 R215 Q11 C225 C227 C228 C230 C84 C85 C86 Q101 L102 C290 C291 CP201 R102 R103 C103 C104 C106 C109 R41 R42 R43 R45 L203 L205 L250 C23 R211 C26 R212 C33 C40 C41 C42 C47 C203 C53 C207 C208 C58 C211 C61 C213 Q10 C215 C219 C66 C67 C69 C71 C72 C74 C77 C80 D8 D10 L4 L8 L9 L16 L20 L21 R11 R13 Q2 Q3 R28 Q5 R33 R37 R9 Q202 C13 C17 R2...

Page 39: ...R219 56k C7 10p R1 18k R373 220k C397 0 47u R394 47k R128 150k D C167 470p R217 3 3k C155 3 5p R368 0 3SK318 Q203 C81 15p D303 B30 2315 05 C312 470p D104 HVC131 R102 27k C372 470p R205 82k C374 1000p R370 1k C224 0 1u Q107 RT1N441U C396 0 1u R380 470k S2 C129 470p C228 470p C360 0 1u MIC C389 470p C290 2p B MDSW 2SB1694 Q313 C400 10u R379 1k C353 0 01u L302 C409 470p R113 100k R378 560 R372 0 C21 ...

Page 40: ...witch 5T_C 5R_C 5C_C IC303 XC6209B502PR 5R QTTCXO MOD QTVCO B B D4 D8 1SV325F D9 KDV214E P 5M Oscillator 446MHz Tx Rx Switch 5T 5R MCF Q312 RT1N441U Q313 2SB1694 B SB AFVOL_IN AFVOL_OUT EN1 EN2 EN3 EN4 EN5 Switch Mute Q314 RT1N441U Q315 Q316 2SK3577 A OPTDET AFVOL_OUT Switch Switch IC304 XC6209B502MR Q304 DTB723YE Q303 RT1P141U Q311 2SA1586 Y GR F Q308 KTC4075E Y GR D308 D309 KDR731 DET DET STD DT...

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