Kenwood TM-V7A Service Manual

TM-V7A/E
PARTS LIST
TX-RX UNIT (X57-52XX-XX)
Ref. No. | Adrress hs Parts No. Description Destination Ref. No. | Adrress nis Parts No. Description Destination
R554 RK73GB1J682J CHIP R 68K J 1/1BW Dis MA28077 DIODE
R655 RK73GB1J223J CHIPR 22K JS (1/16W D16 DA221 DIODE
R556 RK73GB1J224J CHIP R 220K J 1/16W D17 18 MA2S077 DIODE
R557 RK73GB1J473J CHIP R 47K J o1/18W p19 DTZ5.6(A} DIODE
R558 RK73GB1J123J CHIP R 12K 0d /18W 020 188365 DIODE
R559 RK73GB1J473J CHIP R 4K J 1/16W D21 ,22 MA2S077 DIODE
R560 RK73GB1J274J CHIPR 270K J 1/16W 023 1SS355 DIODE
R561 RK73GB1J102J CHIP R 10K J 1/16W 024 DAN222 DIODE
R562-564 RK73GB1J473J CHIPR 4K J 1/16W 025 MA2S077 DIODE
R565 RK73GB1J222J CHIP R 22K JS 1/16W D26 MA2S077 DIODE E,E3
R566 RK73GB1J564J CHIP R 560K J 1/16W D26 MA2S077 DIODE M2,M3
R567 RK73GB1J224J CHIP R 220K J 1/1 Bw 027 MA2S077 DIODE
R568 RK73GB1J473J CHIP R 47K J 1/16W D028 188355 DIODE
R569 RK73GB1J102J CHIP R 10K J 1/16W D029 MA2S111 DIODE
R570 RK73GB1J472J CHIP R 47K J 1/6W D30,31 DA221 DIODE
R571 R92-1252-05 CHIP R 0OHM D32 MA?42 DIODE
R572 RK73GB1J334J CHIP R 330K J 1/16W D33 MA4PH633 DIODE
R573-575 RK73GB15473J CHIP R 4K J 1/16W D34 MIg09 DIODE
R576 RK73GB1J102J CHIP R 10K J 1/16W D35 MA4PH633 DIODE
R577 RK73GB1J472J CHIP R 47K J 1/16W D36 M80 DIODE
R578 RK73GB1J103J CHIP R 10K Ss 1/16W D3? -39 MA742 DIODE
R573 RK73GB1J152J CHIP R 15K J 1/18W E,E3 040 DAN222 DIODE
R579 RK73GB1J822J CHIP R 82K J 1/16W K.M2,.M3 D41 42 MA742 DIODE
R580 RK73GB1J224J5 CHIP R 220K J 1/16W 043 DSM3MA1 DIODE
R581 RK73GB1J103J CHIP R 10K. J o1/18W D44 -47 MA2S077 DIODE
R582,583 RK73GB1J102J CHIP R 10K J 1/16W D48 * | UDZ10(B) DIODE
R584 RK73GB1J330J CHIP R 33 J 1/16W p49 * + UDZ18(B) DIODE
R585, RK73GB1J102S CHIP R 10K J 1/16W D50 MA4PH633 DIODE
S86 RK73GB1J224J CHIPR 220K J 1/16W D54 DSM3MAt1 DIODE
R587 588 RK73GB1J102J CHIP R 10K J 1/16W D52 HVU131 DIODE
R589 RK73GB1J104J CHIP R 100K J 1/16W D501 188355 DIODE
R590 R92-1252-05 CHIP R 0 OHM D502 DTZ7.5(B) DIODE
R591 RK73GB1J100J CHIPR 10 J 1/16W D503 MA112 DIODE
R592 RK73GB1J104J CHIP R 100K «J 1/16W D504,505 188355 DIODE
R593 RK73GB1J102J CHIP R 1.0K J 1/16W D506,507 DA221 DIODE
R594 RK73GB1J103J CHIP R 10K J 1/16W D508,509 MA2S111 DIODE
R595 RK73GB15474J CHIP R 470K J 1/6W
R596 RK73GBiJ222J CHIP R 22K J 1/16W Ici 2B LA4446 IC(AF POWER AMP}
R597 RK73GB15473J CHIP R 47K JS 1/16W 1C2 28 TA7808S IC(REGULATOR}
R598 RK73GB1J2225 CHIP R 22K J 1/16W IC3 2B * | S-AVI7{KENW-1} IC(POWER MODULE VHF)
Ic4 2B M57788MR IC{POWER MODULE/430-450MHz35W}
R599 R92-1252-05 CHIP R 00HM IC6 7 MB1511PFV-GBND IC(PLL FREQUENCY SYNTHESIZER}
R600 RK73GB1J103J CHIP R OK J 1/16W
R601 RK73GB1J473J CHIP R 471K J 1/16W IC8 9 TC4S66F {C{BHLATERAL SWITCH}
R602,603 RK73GB1J102J CHIP R 10K J 1/76W IC10 * | KCH28 HIC(UHF VCO}
1c11 MB511PF-G-BND IC(PRE SCALER}
VR1,2 * | R12-6718-05 SEMI VR 88K C12 * | KCH27 HIC{VHF VCO}
VR701,702 * | R31-0614-05 VARIABLE RESISTOR 50K 1€13 TK10930V IC
$501 $70-0424-05 TACT SWITCH 1014 TC4W53FU Ic(2 INPUT NAND GATE)
1C15 MC3372SV IC(LO POWER FMIC)
D1 DA221 DIODE 1C16 TA75S01F IC(OP AMP}
D45 18V214 DIODE(VARI CAP} (C17 TA78LO5F IC{VOLTAGE REGULATOR/ +5V}
07,8 MA2S111 DIODE IC18 BU4053BCF Ic
Dg MA2S077 DIODE
B10 11 18V214 DIODE{VARI CAP} 1€19,20 BU2090FS IC(SHIFT/STORE REGISTER}
1C501 TA78LO6F ICIVOLTAGE REGULATOR/ +8V)
Di2 DA221 DIODE (C502 TA78L05F IC(VOLTAGE REGULATOR/ +5V)
B13 14 18V214 DIODE
38

Kenwood TM-V7A Specifications

General Specifications

VHF frequency range	144~148MHz
UHF frequency range	438~450MHz (U.S.A/Canada)
Antenna impedance	50Ω
Usable temperature range	-20°C to +60°C (-4°F to +140°F)
Power supply	13.8V DC ±15% (11.7~15.8V)
Grounding method	Negative-ground
Frequency stability	±3ppm (-10°C to +50°C)
Dimensions (W x H x D)	140 x 54.5 x 205.5 mm

Transmitter Specifications

High power output	50W (VHF) / 35W (UHF)
Mid power output	Approx. 10W
Low power output	Approx. 5W
Spurious emissions	-60dB or less
Maximum frequency deviation	±5kHz
Audio distortion	3% or less (at 60% modulation)
Microphone impedance	600Ω

Receiver Specifications

Circuitry	Double conversion
Intermediate frequency (1st / 2nd)	38.85MHz / 450kHz and 45.05MHz / 455kHz
Sensitivity (VHF or UHF band)	0.16μV or less (12dB SINAD)
Sensitivity (Sub VHF or UHF band)	0.25μV or less
Selectivity (-6dB)	12kHz or more
Selectivity (-60dB)	28kHz or less
Squelch sensitivity	0.1μV or less
Audio output	2W or higher (8 ohms, 5% distortion)
Audio output impedance	8Ω

Weight and Dimensions

Weight	1.2 kg (2.6 lb)
Dimensions (W x H x D)	5.51" x 2.15" x 8.09"