Kenwood YK-88SN, PS-50, SP-430, PS-430, MB-430, AT-440 Filter selective, MCF L71-0259-05 RF Unit Fl

Page 8

TS-440S

CIRCUIT DESCRIPTIO N

Filter selective

 

 

 

 

 

 

 

 

 

AUTO MODE

 

 

 

 

MANUAL MODE

 

 

 

 

WITHOUT OPTION

OPTION INSTALLE D

 

WITHOUT OPTION

OPTION INSTALLE D

MODE

8 .83MHz

455kHz

8 .83MHz

455kH z

SELECT

8 .83MHz

455kHz

8 .83MHz

455kH z

SSB

Through

CFI

XF1

CF

1

N

NO RX

 

XF2

CF 1

 

 

 

 

 

 

 

 

 

CW

Through

CF1

XF2

CF

1

M 1

 

 

XF1

CF 1

AM

Through

CF2

Through

CF

2

M2

Through

CFI

Through

CF 1

FSK

Through

CFI

XF2

CF I

W

Through

CF2

Through

CF2

FM

Through

—

Through

—

 

 

 

 

 

 

 

XF1: YK-88S or YK-88S N

XF1: YK-88S or YK-88S N

XF2: YK-88C or YK-88C N

 

XF2: YK-88C or YK-88C N

 

Table 2

Item

Ratin g

Table

3

Item

Rating

Center frequency fo Center frequency deviation Pass bandwidth Attenuation bandwidth Ripple

Insertion loss Guaranteed attenuation

45 .05 MH z

fo± 1 kHz at 3 d B

±9 .6 kHz or more at 3 d B

±28 kHz or less at 10 d B

0 .7 dB or les s

2 .0 dB or les s

30 dB or more with ±1 MH z (Except spurious )

Center frequency fo

455 kH z

6 dB bandwidth

±2 kHz or mor e

40 dB bandwidth

7 .5 kHz or les s

Insertion loss

6 dB or les s

Guaranteed attenuatio n

35 dB or more

(within 455kHz ± 100kHz)

 

Input and output impedance

2 .0 al

Final impedance

2 kS1±10 %IL characteristi c

Table 4 MCF (L71-0259-05) (RF UNIT Fl )

Item

 

Ratin g

Center frequency fo

8830 kHz±0 .5 kH z

Pass bandwidth

±3 kHz or more at 3 d B

Attenuation bandwidth

±12 kHz or less at 18 d B

Guaranteed attenuation

30 dB or more within fo± 1

 

MH z

Ripple

0

.5 dB or les s

Insertion loss

1

.0 dB or les s

Final impedance

2

.5 kfll3 pF

Table 5 Ceramic filter (L72-0355-05) (IF UNIT CF2 )

Item

Ratin g

Center frequency fo

455 kHz±1 'kH z

6 dB bandwidth

±6 kHz or mor e

50 dB bandwidth

±12 .5 kHz or les s

Rippl e

3 dB or les s

(within 455 kHz±4 kHz)

 

Insertion loss

6 dB or les s

Guaranteed attenuatio n

35 dB or more

(within 455 kHz± 100kHz)

 

Input and output impedance

2 .0 kS l

Table 6 MCF (L72-0260-05) (RF unit F2 )

Table 7 Ceramic filter (L72-0315-05) (IF unit CF3 )

 

 

Item

Ratin g

 

 

Center frequency fo

455 kHz±0 .2 kHz at 6 d B

 

 

6 dB bandwidth (total)

± 1 .1 -1 .3 kH z

Item

Rating

60 dB bandwidth

4 .5 kHz or les s

Center frequency fo

8 830 MH z

Guaranteed attenuation

60 dB or mor e

Attenuation bandwidth

±50 kHz or more at 3 d B

 

(at 0 .1 -1 MI-Iz )

Guaranteed attenuation

35 dB or more at 9 285 MH z

 

 

Spurious (600—700 kHz)

40 dB or mor e

 

45 dB or more at 9 .74 MH z

Ripple with bandwidth

2 dB or less at 60 d B

Insertion loss

6 dB or les s

Insertion loss

2 dB or les s

Ripple

1 .0 dB or les s

Temperature

— 10°C— +50° C

Input and output impedance

330 Sl

Input and output impedance

2 al

Max voltage (DC)

50 V (Min l

Table 8 Ceramic filter (L72-0356-05) (IF UNIT CF1)

Table 9 Ceramic filter (L72-0351-05) (IF unit CF4 )

8

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Contents KEN Wood Semiconductors Dimensions TS-440SSensitivity Image ratio If rejection SelectivityFrequency accuracy RIT/XIT OFF Frequency stabilityFig Frequency configuratio n Circuit Descriptio N IpllFig Receiver circuit configuratio n USB, LSB, FS KAM, FM Displayed frequencie sCircuit Description Fig Selectivity control circuitCeramic filter L72-0355-05 if Unit CF2 Filter selectiveMCF L71-0259-05 RF Unit Fl Circuit Descriptio N BX7I91- 851BX719 D27 D2 Fig Notch circui tTransmitter Circuit Descriptio n TS-440$ SWR automatic arithmetic circuit Fig Antenna tuner circuitSWR protection circuit Controlsemi Fig -2 FULL/SEMI BREAK-IN timing chartFig -1 FULL/SEMI BREAK-IN block diagra m Fig Standby keying timing char t Circuit DescriptionFig -3 FULL/SEMI BREAK-IN timing char t Circuit Descriptio N Fig PLL circuit block diagra m PLL4 PLL3Circuit Descriptio N Unloc kCircuit Description Fig Control circuit block diagra mFig Encoder waveform timing chart Fig Encoder circui tFig Digital circuit Key scan matrixRIT If Shift %--- 1 9 LFig A/D convertor circui t Reset output 7800 port B7 RL output 7800 port A6BZ Buzzer output 7800 port A7 MT output 8255 IC2 port A7Band information 7800 PBo 3, B3B2B1B o VCO SW VCOFig Band information generation circuit BCD DECFig Mode control circuit ~ tControl unit X53-1450 Expand functionOperation procedure BZ OFFTES T Conditio nSW Monitor Display changes by Test numbe r SN74LS138H Control unit IC51 TOP View ResetRese T SE T DAT a Clock MB4052 Pin Descriptio n Signal Pin Function s AD CCLK DataBPD SN74LSI38Semiconducto R NF B Semiconducto RPin connectio n TPD8255AC-5 Control unit IC2 Semiconducto R SCKParts List Chip capacitorsFor Europ e For Australi a For U .S .AM2 General Marke T Warranty Card DC Power Cord ASS YWire with Conneltnr Fuse 20AACCESSNR YRef . No Address Parts No Description DestiRP. * -g Nation 40HFR MAfN PnnhSwitch Unit PIN Connectnr Ceramic CC45RHIH330J CeramicCeram IC Cerom CElectr CE04W Odium Elec CROCE04WIH010M Electro CE04IAIHO Elec .1ROAddress New Parts No Descriptio n Desti Natio nCnnnect I NG Wire CC45CF-II.HO50C CeramicCeramic Ooopf Elec -FRO OUFAddress New Parts No Description Desti- Re nation mark sAddress New Parts No IR .g Desti NationDesti Re nation mark s Ref . NoParts No Descriptio n New Parts Ceramic 56OPFCK45FIH223Z Ceramic Screw PUL LEYRAN Hfad Machine SCR K W Prone R5004`-,0111-1220 Cioo Ceramic 6BPFCeramic 1OPF CC45CHI.F-IOR5C Ceramic0107 Small Fixed Inducto R L40EIOII-13 Small Fixed Inducto RSmall Fjxed Inducto R Oscillating LOILVCO395MH7Desti Re nation marks CST LOU Trmming POT 50V Protectio NMimng POI RelayElellrn 47LIF EleltpnOoiuf Ceramic Hinf112 AT Unit TS-440S G5 a It ,4-$ Ceramic Oiouf CK45FIH223Z CeramicCC45SLIHO50C Ceramic CK45FIIJ223Z CeramicCO92M1H1O3K CE04WIH010MCE04W1HR47M CE04W H4RIMSig 1F F TS-440$ DTC114ES Digital Transistor PC Board TS-440S BDFPW M NilY016 C36 Tl .I J PLL Unit Page Page Page Page Page Page Page Page Disassembly Disassembly Sems55x2 OcDC o TS-440E/8 000- N TS-440S Packing Adjustmen T RECJapanese SG American SG 25µ Detector AdjustmentSpectrum Analyzer SPE-ANA Power on DC V .M RF Gain MAX Mode USB Stby RECMode USB Mode a MUnit Adjustmen T 5612 Mode F M DI PANT AN T VR6Stby SEN D Power SW OFF Mode SWMode USB Function SW aTOP View ITP8I TP11I ITP1 TP3TP4I Adjustment MV AF 25mV 4.9mV AF Output 0 .68V/811Input DBu 44 FMIf Unit MIC MI CRF UNI T TIF DRV=KO= Power SW of F Power SW onPS-50 Warranty AP B AL Power for DAC Power ORD AF Power CordWire HAN D Power IronsinrmerPower Cord Pushing NotRS14GB3A01DJ RI1JZF1OD FL---PROOF RSSchematic Diagramipc Boar D 220V Version 240V VersionRS14GB3D4R7J Specificationsiparts LIS TSLP144B CE04W1HR22M CS15E1EO10M CS15E1VOR1MMN6401TRA IC N IC N ICSchematic Diagram Languag E SelectPage Weight MB-430/SP-430YK-88S/SN,YK-88C/C N Ratin gCommunications & Test Equipment Grou P Incorporated in N .S
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SP-430, VS-1, PS-430, AT-440, YK-88C specifications

The Kenwood MB-430, PS-50, YK-88S, YK-88CN, and YK-88SN are notable components that enhance the capabilities of Kenwood's transceiver products, particularly in the amateur radio segment. Each of these units plays an essential role in expanding functionality, improving performance, and providing users with valuable features that are beneficial in various communication scenarios.

Starting with the Kenwood MB-430, it serves as a versatile mobile bracket designed for specific Kenwood radio models. The MB-430 enhances mobility, allowing operators to mount their radios securely in vehicles or portable setups. Its sturdy construction ensures reliability during operation, and it offers a simple installation process, making it user-friendly for both beginners and seasoned enthusiasts.

The PS-50 power supply is a crucial accessory that complements Kenwood's transceiver line. This power supply is known for its compact design, providing 13.8 V DC output, which is essential for powering radios effectively. With a current rating that adequately supports various transceivers, the PS-50 is equipped with short-circuit protection and thermal overload features. These safety mechanisms protect both the power supply and the connected equipment, making it a dependable choice amongst operators.

The YK-88S, YK-88CN, and YK-88SN are all filters that enhance the performance of Kenwood transceivers. The YK-88S is a high-performance SSB filter, designed to improve the clarity of SSB signals while reducing adjacent channel interference. It offers narrow bandwidth options that facilitate more precise tuning, making it particularly valuable in crowded band conditions.

Meanwhile, the YK-88CN is known for its crystal filter technology, optimizing the transceiver's performance for CW and digital modes. This filter helps in eliminating unwanted noise, allowing operators to enjoy clearer reception and improved decoding of weak signals.

The YK-88SN, similar in function to the YK-88S and YK-88CN, provides additional narrow filtering options, enhancing the agility of transceiver operation in various modes. It effectively enhances selectivity and reduces interference from strong signals, providing a cleaner audio output.

Together, these components contribute to a seamless operating experience for amateur radio enthusiasts. Whether enhancing filter characteristics, providing reliable power, or ensuring secure mobility, the MB-430, PS-50, YK-88S, YK-88CN, and YK-88SN demonstrate Kenwood’s commitment to quality and performance in the radio communications field.
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