Kenwood TM-V71E Manuel utilisateur

SERVICE MANUAL

TM-V71A/V71E

B51-8791-00 (N)289

roduct uses Lead Free solder.This product complies with the RoHS directive fo

Photo is TM-V71A.

CONTENTS

DISASSEMBLY FOR REPAIR ......................2

CIRCUIT DESCRIPTION ..............................3

SEMICONDUCTOR DATA.........................11

COMPONENTS DESCRIPTION.................14

TERMINAL FUNCTION .............................19

PARTS LIST ...............................................22

EXPLODED VIEW ......................................38

PACKING....................................................39

ADJUSTMENT ..........................................40

PC BOARD

DISPLAY UNIT (X54-3590-00)...............60

TX-RX UNIT (X57-731X-XX) .................64

INTERCONNECTION DIAGRAM ..............72

SCHEMATIC DIAGRAM ............................74

BLOCK DIAGRAM .....................................86

LEVEL DIAGRAM ......................................88

OPTIONAL ACCESSORIES .......................90

SPECIFICATIONS ......................................91

Microhone

(T91-0657-15)

Metallic cabinet

(A01-2206-02)

Front glass (Display)

(B10-2775-12)

Panel (Display)

(A62-1135-03)

Knob (ENC)

(K29-9376-03)

Knob (VOL)

(K29-9377-03) x 2

Knob (SQL)

(K29-9380-03) x 2

Button knob (VFO,MR)

(K29-9378-03)

Button knob (POWER,PM)

(K29-9379-03)

Button knob (7KEYS)

(K29-9381-02)

fineline6

JKLMNOPQRS

110

C803

C804

C806

C807

J801

SP1

J802

SP2

Q954

Q802

C975

D955

C810

C941

R991

R992

C963

C970

C979

C982

C986

Q757

R780

C782

C783

TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION

0-11 : K 0-21 : M4 2-71 : E Component side view (J79-0142-19 D/6)

PC BOARD

TM-V71A/V71

Component side

Foil side

Layer 1

Layer 2

Layer 3

Layer 4

TX-RX UNIT (F/6) :

VCO B SECTION

/6 J79-0142-19 F/6

Ref. No. Address

IC916 6E

IC917 8I

IC918 7H

IC919 6G

IC920 6H

IC921 7J

Q701 13F

Q706 12F

Q707 13G

Q751 13I

Q756 12I

Ref. No. Address

Q757 13J

Q802 6L

Q916 5H

Q917 5G

Q918 6G

Q952 8J

Q954 8J

D701 13F

D703 13E

D705 12E

D710 12F

Ref. No. Address

D751 13I

D753 13H

D755 12H

D760 12I

D916 6G

D951 6D

D952 7D

D953 7D

D955 8J

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TM-V71A/V71E

General TM-V71A TM-V71E TM-V71A

K Type E Type M4 Type

Guaranteed range Band A & B TX & RX 144~148MHz 144~146MHz

438~450MHz 430~440MHz

Frequency range

Band A

118 ~ 524MHz –

Band B 136~524MHz –

800~1300MHz (excluding cellular band) –

Mode F2D/ F3E

Antenna impedance 50 Ω

Operating temperature range –20°C~+60°C (–4°F~+140°F)

Power requirement 13.8 V DC±15% (Negative ground)

Frequency stability Within ±5 ppm (–10°C~+50°C)

Current TX

VHF

HI Less than 13.0A –

MID Less than 5.5A Less than 9.0A

LOW Less than 4.0A

UHF

HI Less than 13.0A –

MID Less than 6.5A Less than 9.0A

LOW Less than 5.0A

RX Less than 1.2A (at 2W audio output)

Dimensions

(W x H x D)

Without projections Panel: 140 x 43 x 38.2 mm (5.51" x 1.69" x 1.50")

Body (with Panel): 140 x 43 x 180.7 mm (5.51" x 1.69" x 7.11")

With projections Panel: 140 x 43 x 55.4 mm (5.51" x 1.69" x 2.18")

Body (with Panel): 140 x 43 x 213.1 mm (5.51" x 1.69" x 8.39")

Weight (approx.) Body (with Panel): 1.5 kg (3.3 lbs)

Transmitter

RF power output

HI 50W –

MID Approx. 10W 25W

LOW Approx. 5W

Modulation Reactance modulation

Maximum frequency deviation Within ±5kHz

Spurious radiation Less than –60dB

Modulation distortion (300Hz~3kHz) Less than 3%

Microphone impedance 600Ω

Receiver

Circuitry Double super heterodyne

Intermediate frequency 1st (Band A/ Band B) 45.05MHz/ 49.95MHz

2nd (Band A/ Band B) 455kHz/ 450kHz

Sensitivity Less than 0.16µV

Squelch sensitivity Less than 0.1µV

Selectivity –6dB More than 11kHz

–50dB Less than 30kHz

Low frequency output (8Ω) More than 2W (at 5% distortion)

SPECIFICATIONS

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Kenwood TM-V71A TM-V71E Service Manual

Ce manuel convient aux modèles suivants

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