Kenwood M), TK-2160 DISASSEMBLY FOR REPAIR

TK-2160

DISASSEMBLY FOR REPAIR

//

Ω

≈

,Packing

1. Separating the case assembly from the chassis.

1. Remove the volume knob z.

2. Remove the two screws x.

3. Lift the chassis c, and remove it from the case assembly.

Note:After separating the case assembly from the chassis,

remove the channel knob.

2. Separating the chassis from the TX/RX unit.

1. Remove the two screws v fixing the TX/RX unit B/2.

2. Remove the twelve screws b and two screws n fixing

the TX/RX unit A/2.

3. Remove the solder from the antenna terminal using a

soldering iron m, then lift the unit off.

z

x

c

Channel knob

≈

m

,

.

vv

bb

bbb

b

n

TX/RX UNIT B/2

TX/RX UNIT A/2

3. How to remove the battery terminal block.

1. Remove the two screws /, then pull out the back cover Ω.

2. Remove the screw ≈.

Note:To remove the TX/RX unit B/2, remove the solder using

a soldering iron ..

Note:The two screws n of TX/RX unit A/2 are fixing the

battery terminal block ,.

Contents

Main TK-2160 SERVICE MANUAL CONTENTS TK-2160 GENERAL / SYSTEM SET-UP INTRODUCTION SCOPE OF THIS MANUAL ORDERING REPLACEMENT PARTS OPERATING FEATURES 1. Operation Features qq Installing the (Optional) Antenna Installing the Belt Clip OPERATING FEATURES / REALIGNMENT Fig. 1 Programmable Auxiliary Functions 2. How to Enter Each Mode DISASSEMBLY FOR REPAIR // b vv , TK-2160 Assembling Fig. 1 Installation of battery terminal block and packing Installation of speakers and cushion, and wire styling of speakers 1. Frequency Configuration Fig. 2 Receiver section Fig. 1 Frequency configuration 1) Front End (RF AMP) 2) First Mixer 3. PLL Frequency Synthesizer 1) PLL 2) VCO Fig. 6 PLL circuit 3)Unlock Detector Fig. 7 Unlock detector circuit 4. Transmitter System 1)Microphone Amplifier Fig. 8 Microphone amplifier Fig. 9 Drive and final amplifier and APC circuit 3)APC Circuit 4)Encode Signalling 6. Control Circuit 1) Frequency Shift Circuit 5. Power Supply Fig. 10 Frequency shift circuit Fig. 11 Memory circuit CIRCUIT DESCRIPTION / INSTALLATION INSTALLATION 1. Optional Board TX-RX UNIT (X57-6720-10) Component side view TERMINAL FUNCTION CN801 Solder point connection SEMICONDUCTOR DATA Microprocessor : M30622MCA7G7GP (TX-RX UNIT : IC805) Pin function COMPONENTS DESCRIPTION TX-RX UNIT (X57-672X-XX) TK-2160 CAPACITORS CC 45 TH 1H J220 12346 5 1 C TK-2160 TX-RX UNIT (X57-672X-XX) 0-10 : K, M TK-2160 TK-2160 (Y50-578X-XX) Page Page Page Page TK-2160 Page EXPLODED VIEW PACKING Test Equipment Required for Alignment The following parts are required for adjustment 1. Antenna connector adapter 2. Repair Jig (Chassis) 3. Battery Jig (W05-0909-00) Adjustment points TX-RX unit (X57-672) Component side view Foil Side View Fig. 1 Adjustment points Common Section Transmitter Section Page Receiver Section JIHGFEDCBA J72-0895-09 A/2 Foil side PC BOARD TX-RX UNIT (X57-6720-10) Component side view (J72-0895-09) Component side Layer 1 Layer 2 Layer 3 Layer 4 Layer 5 Layer 6 TX-RX UNIT (X57-6720-10) PC BOARD TK-2160 TX-RX UNIT (X57-6720-10) Component side view (J72-0895-09) J72-0895-09 B/2 JIHGFEDCBA PC BOARD TX-RX UNIT (X57-6720-10) Foil side view (J72-0895-09) D14 J72-0895-09 B/2 JKLMNOPQRS PC BOARD TK-2160 TX-RX UNIT (X57-6720-10) Foil side view (J72-0895-09) TX-RX UNIT (X57-6720-10) TK-2160 ABCDE 1 X57-672 1/4 7 2 FGHIJ X57-672 2/4 TK-2160 KLMNO X57-672 3/4 TSRQP 1 :TA75W01FUIC201 :TA31136FNIC401 Note :The components marked with a dot () are parts of layer1. Page BLOCK DIAGRAM LEVEL DIAGRAM TX RX KSC-30 Operating flow chart parts Ref. No. Parts No. Description POWER ON INITIALIZATION INSERT BATTERY Does S terminal connect? Distinguish the kinds of battery SPECIFICATIONS KENWOOD CORPORATION KENWOOD U.S.A. CORPORATION KENWOOD ELECTRONICS CANADA INC. KENWOOD ELECTRONICS DEUTSCHLAND GMBH