Kenwood TK-8180 Service Manual

© 2004-7 PRINTED IN JAPAN
B51-8692-00
(
N
)
1007
UHF FM TRANSCEIVER
TK-8180
SERVICE MANUAL
Panel assy
(A62-1094-23)
Key top
(K29-9312-21)
Cabinet
(A01-2194-11)
Microphone
(T91-0639-05)
GENERAL .................................................................. 2
SYSTEM SET-UP ...................................................... 3
REALIGNMENT ......................................................... 4
INSTALLATION ......................................................... 7
DISASSEMBLY FOR REPAIR ................................. 13
CIRCUIT DESCRIPTION .......................................... 16
SEMICONDUCTOR DATA ...................................... 20
COMPONENTS DESCRIPTION .............................. 22
PARTS LIST ............................................................. 24
EXPLODED VIEW.................................................... 33
PACKING ................................................................. 34
ADJUSTMENT ........................................................ 35
TERMINAL FUNCTION ........................................... 46
PC BOARD
DISPLAY UNIT (X54-3480-10) ............................ 50
TX-RX UNIT (X57-6990-10) (A/3, C/3) ............... 52
TX-RX UNIT (X57-6990-10) (B/3) ....................... 54
SCHEMATIC DIAGRAM
DISPLAY UNIT (X54-3480-10) ............................ 58
TX-RX UNIT (X57-6990-10) ................................ 60
INTERCONNECTION DIAGRAM ............................ 69
BLOCK DIAGRAM ................................................... 70
LEVEL DIAGRAM .................................................... 72
OPTIONAL ACCESSORIES
KRK-10 (Control Head Remote Kit: 23ft/7m) ...... 74
KAP-2 (Horn Alert/P.A. Relay unit) ................... 79
KCT-40 (Radio Interface Cable).......................... 79
KCT-46 (Ignition Sense Cable) ........................... 79
KMC-35 (Microphone) ........................................ 79
KMC-36 (Keypad Microphone) .......................... 79
SPECIFICATIONS ................................. BACK COVER
CONTENTS

Kenwood TK-8180 Specifications

General Specifications

frequency range	450~520MHz
number of channels	Max. 128 per radio
channel spacing	Wide: 25kHz, Narrow: 12.5kHz

Power

operating voltage	13.6V DC ± 15%
current drain standby	0.4A
current drain receive	1.0A

Operating Environment

duty cycle	Transmit: 20%
operating temperature range	–22°F~+140°F (–30°C~+60°C)
frequency stability	± 0.00025% (–22°F~+140°F)

Receiver Specifications

sensitivity (12dB SINAD) wide	0.25µV
sensitivity (12dB SINAD) narrow	0.28µV
selectivity wide	80dB

Transmitter Specifications

RF power output	30 to 1W (490~520MHz: 25 to 1W)
spurious response	70dB
FM hum & noise wide	50dB

Weight and Dimensions

dimensions	6-5/16 x 1-3/4 x 6-3/16 in. (160 x 45 x 157 mm)
weight	3.31lbs. (1.5kg)
antenna impedance	50Ω