Kenwood TKR-850 Service Manual

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Brand: Kenwood

Category: Marine Radio , Radio , Repeater

Type: Service manual for Kenwood TKR-850

Pages: 101

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© 2004-10 PRINTED IN JAPAN
B51-8557-30
(
N
)
1219
UHF FM REPEATER
TKR-850
SERVICE MANUAL
UHF FM REPEATER TKR-850
Front panel
(A62-0934-03)
Knob (DC source)
(K29-9106-04)
Key top
(K29-5460-02)
Knob (Volume)
(K29-5389-03)
Modular jack
(E08-0877-05)
Antenna cable (N)
(E30-3419-05)
Antenna cable (BNC)
(E30-3418-05)
TEST/SPKR connector assy
(E37-0913-05)
D-sub cable assy
(E37-0904-05)
DC backup terminal
(E70-0402-05)
DC cord (Ext DC in)
(E30-3414-05)
Fuse (Blade, 15A/32V)
(F05-1537-05) x 2
GENERAL ................................................................. 2
SYSTEM SET-UP ..................................................... 2
OPERATING FEATURES ......................................... 3
REALIGNMENT........................................................ 4
INSTALLATION........................................................ 5
MODIFICATION ....................................................... 8
DISASSEMBLY FOR REPAIR ................................ 10
CIRCUIT DESCRIPTION ......................................... 11
SEMICONDUCTOR DATA ..................................... 18
COMPONENTS DESCRIPTION ............................. 20
PARTS LIST............................................................ 22
EXPLODED VIEW .................................................. 34
PACKING ................................................................ 36
ADJUSTMENT ....................................................... 37
CONTENTS
TERMINAL FUNCTION ......................................... 46
INTERCONNECTION DIAGRAM........................... 50
PC BOARD
FINAL UNIT (X45-374X-XX) ............................. 52
DISPLAY UNIT (X54-3330-21) .......................... 56
TX-RX UNIT (X57-696X-XX) (A/2) ................... 60
TX-RX UNIT (X57-696X-XX) (B/2) ................... 64
RX VCO UNIT (X58-480X-XX) .......................... 68
TX VCO UNIT (X58-481X-XX) .......................... 69
SCHEMATIC DIAGRAM ........................................ 70
BLOCK DIAGRAM.................................................. 83
KES-5 (EXTERNAL SPEAKER) .............................. 86
SPECIFICATIONS................................................... 87
REVISED III
This service manual applies to products 60700001 or subsequent serial number.
In terms of the products with the serial numbers earlier than 60700001, refer to the TKR-850 service manual as per part number
B51-8557-20 and B51-8676-00.