Kenwood TK-8180 Service Manual Supplement

© 2004-10 PRINTED IN JAPAN
B51-8702-00
(
N
)
907
UHF FM TRANSCEIVER
TK-8180
SERVICE MANUAL
Panel assy
(A62-1094-23)
Key top
(K29-9312-31)
Metallic cabinet
(A01-2194-11)
Microphone
(T91-0639-05)
GENERAL .......................................................... 2
PARTS LIST ....................................................... 4
EXPLODED VIEW............................................ 14
PACKING ......................................................... 15
ADJUSTMENT ................................................ 16
PC BOARD
DISPLAY UNIT (X54-3480-10) .................... 28
TX-RX UNIT (X57-6990-XX) (A/3, C/3)...... 30
CONTENTS
SUPPLEMENT
TX-RX UNIT (X57-6990-XX) (B/3) .............. 32
SCHEMATIC DIAGRAM
DISPLAY UNIT (X54-3480-10) .................... 36
TX-RX UNIT (X57-6990-XX) ....................... 38
INTERCONNECTION DIAGRAM .................... 47
BLOCK DIAGRAM ........................................... 48
LEVEL DIAGRAM ............................................ 50
SPECIFICATIONS ......................... BACK COVER
This TK-8180 service manual contains a number of
sections which differ from the service manual (B51-
8692-00) for the TK-8180.
For items other than those in this TK-8180 service
manual please refer to the service manual (B51-8692-
00) for the TK-8180.
Service Manual List
Title Part number Remarks Destination
TK-8180 B51-8692-00 K
TK-8180 B51-8702-00 (This service manual) SUPPLEMENT K2

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