Kenwood TK-7180 COMPONENTS DESCRIPTION

TK-7180

22

Display unit (X54-3480-10)

Ref. No. Part Name Description

IC901 IC Voltage regulator/ 5V

IC902 IC Microprocessor

IC903 IC LCD driver

Q901,902 Transistor HOOK switch

Q904 Transistor TX indication LED switch

Q905 Transistor BUSY indication LED switch

Q906 Transistor Dimmer switch control

Q907 Transistor Dimmer switch

Q909 Transistor Backlight control switch

Q910 Transistor 8C switch

Q911 Transistor 8C switch control

Q913 Transistor Backlight control

D901,902 Zener diode Voltage protection

D903 Varistor Current limitter

D904~906

Diode Surge protection

D907 LED TX/Busy indication

D909~920

LED LCD backlight

D921~930

LED KEY backlight

TX-RX unit (X57-6980-10)

Ref. No. Part Name Description

IC1 IC Power module

IC71,72 IC DC amp for TX APC

IC171 IC RX 1st mixer

IC172 IC FM IF system IC

IC251 IC DC-DC converter

IC301 IC PLL system IC

IC302 IC PLL CP switch

IC401 IC EEPROM

IC402 IC RTC processor

IC403 IC Shift register

IC404 IC Microprocessor

IC405 IC Flash memory

IC406 IC HSD BPF/HSD compalator

IC407 IC DET amp/Data LPF (DB-25)

IC408 IC LSD buffer amp/VCXO bias amp

IC409 IC LSD LPF/Voltage DC-reference

IC410 IC D/A converter

Ref. No. Part Name Description

IC411 IC RF BPF tuning voltage DC amp

IC412 IC Modulation LPF/DET amp

IC413 IC AF switch IC

IC414 IC MIC amp

IC415 IC AQUA-L

IC416 IC Level converter IC (RS-232C)

IC417 IC Audio IC

IC801 IC Voltage detector (CPU reset)

IC802 IC Voltage detector (INT)

IC803 IC Voltage regulator/ 8V

IC804,805

IC Voltage regulator/ 5V

IC807 IC Voltage regulator/ 5V

Q1 Transistor TX pre-driver

Q2 Transistor TX driver

Q3 Transistor TX gate switch

Q72 FET High/Low power switch

Q73 Transistor High/Low power switch

Q103 Transistor Front-end LNA

Q171,172 Transistor IF amp

Q173,174 Transistor W/N CF switch control

Q175 Transistor Noise amp

Q176 FET DET mute switch

Q177 Transistor W/N CF switch control

Q178 Transistor W/N discrete switch

Q180 Transistor W/N CF switch control

Q251 Transistor Ripple filter

Q301 Transistor PLL f-in doubler amp

Q302~304

Transistor PLL LPF

Q305 Transistor PLL f-in filter switch control

Q306,307 FET TX/RX VCO

Q308~310

Transistor TX/RX VCO switch

Q311 Transistor VCO buffer amp

Q312 Transistor Ripple filter

Q313 Transistor VCO buffer amp

Q314 Transistor PLL f-in filter switch control

Q402 Transistor Beat shift switch

Q403 FET AF switch (Voice)

Q405 Transistor AQUA control switch

Q406 FET AF switch (LSD)

Q409 Transistor AF mute switch

COMPONENTS DESCRIPTION

Contents

Main VHF FM TRANSCEIVER TK-7180 SERVICE MANUAL CONTENTS GENERAL INTRODUCTION SCOPE OF THIS MANUAL ORDERING REPLACEMENT PARTS PERSONAL SAFETY GENERAL / SYSTEM SET-UP Speaker jack cap SYSTEM SET-UP D-sub cap Power input connector 1. Modes 2. How to Enter Each Mode Fig. 1 3. Panel Test Mode Setting method refer to ADJUSTMENT. 6. Firmware Programming Mode 6-1. Preface 6-2. Connection procedure Note : 6-3. Programming 8. Firmware Version Information 9. Clock Adjustment Mode Fig. 2 9-1. Flow chart of operation TK-7180 2. Radio Interface Cable (KCT-40 : Option) w 2-1. Connecting the KCT-40 cable to the transceiver q e TK-7180 3. Horn Alert/P.A. Relay Unit (KAP-2 : Option) Install the KRK-10 rear panel onto the front panel Fig. 4-2 4. Control Head Remote Kit (KRK-10 : Option) e w q 4-1. Installing the KRK-10 kit to the transceiver 5. Voice Guide & Storage Unit (VGS-1 : Option) 5-1. Installing the VGS-1 unit in the transceiver q w Connect the KRK-10 main panel to the rear panel with the cable 8. GPS Receiver Connection 8-1. Installing the GPS receiver Fig. 8-1 Fig. 7-1 7. ANI Board Connection 8-2. Installing the GPS receiver together with the VGS-1 Fig. 8-5 q Fig. 8-3 1. Precautions on Disassembly r e 2. Precautions on Reassembly r e 1. Outline 2. Receiver Circuit Fig. 1 Receiver circuit 2-1. Front-end Circuit 2-2. First Mixer 3. Transmitter Circuit Fig. 3 Drive and Final power amplifier and automatic power control circuit 3-1. Microphone Circuit 3-2. Modulation Level Adjustment Circuit 3-3. Driver and Final Power Amplifier Circuit TK-7180 4. Frequency Synthesizer Unit Fig. 5 Control circuit block diagram Fig. 4 PLL block diagram 4-1. Frequency Synthesizer 6. Power Supply Circuit 7. Display Circuit Fig. 7 Display circuit Fig. 6 Power supply circuit SEMICONDUCTOR DATA Microprocesser : 30625MGP-169GP (TX-RX unit IC404) Shift Register : BU4094BCFV (TX-RX unit IC403) SEMICONDUCTOR DATA Microprocesser : 30302M8-8Z7GP (Display unit IC902) COMPONENTS DESCRIPTION Display unit (X54-3480-10) TX-RX unit (X57-6980-10) COMPONENTS DESCRIPTION TK-7180 DISPLAY UNIT (X54-3480-10) TX-RX UNIT (X57-6980-10) Page Page Page Page Page Page Page EXPLODED VIEW PACKING Parts with the exploded numbers larger than 700 are not supplied. Controls Panel Test Mode LCD display in panel test mode This transceiver has a test mode. Test mode operation features Panel Tuning Mode Preparations for tuning the transceiver Transceiver tuning (To place transceiver in tuning mode) LCD display in panel tuning mode nBAL 256 Flow chart Note : The Wide 4k can not use, please skip it. High High 3 reference level adjustments Test Equipment Required for Alignment MIC connector (Front panel view) KENWOOD part : W05-1127-00 Test cable for microphone input (E30-3360-08) Tuning cable (E30-3383-05) Common Section Transmitter Section (K market model skips adjustment of Wide 4k) Page Page Page Receiver Section (K market model skips adjustment of Wide 4k) Page Adjustment Points Display unit (X54-3480-10) TX-RX unit (X57-6980-10) (A/3) TX-RX unit (X57-6980-10) (B/3) Page Solder Land TK-7180 DISPLAY UNIT (X54-3480-10) Component side view (J72-0932-09) DISPLAY UNIT (X54-3480-10) Foil side view (J72-0932-09) DISPLAY UNIT (X54-3480-10) Component side view (J72-0932-09) DISPLAY UNIT (X54-3480-10) Foil side view (J72-0932-09) TK-7180 TK-7180 TX-RX UNIT (X57-6980-10) (A/3) Component side view (J72-0930-19 A/3) TX-RX UNIT (X57-6980-10) (C/3) Component side view (J72-0930-19 C/3) TX-RX UNIT (X57-6980-10) (C/3) Foil side view (J72-0930-19 C/3) TX-RX UNIT (X57-6980-10) (A/3) Foil side view (J72-0930-19 A/3) J72-0930-19 B/3 TK-7180 Component side view (J72-0930-19 B/3) JKLMNOPQRSIHGFEDCBA J72-0930-19 B/3 TK-7180 Component side view (J72-0930-19 B/3) TX-RX UNIT (X57-6980-10) (B/3) Component side view (J72-0930-19 B/3) Component side Foil side Layer 1 Layer 2 Layer 3 Layer 4 TK-7180 Foil side view (J72-0930-19 B/3) JKLMNOPQRS Foil side view (J72-0930-19 B/3) Ref. No. 930-19 B/3 0 Component side Foil side TK-7180 Foil side view (J72-0930-19 B/3) TX-RX UNIT (X57-6980-10) (B/3) Foil side view (J72-0930-19 B/3) Component side Foil side Layer 1 Layer 2 Layer 3 Layer 4 ABCDE X54-348 1/2 59 JIHGF Note : The components marked with a dot () are parts of layer 1. TO TX-RX UNIT (B/3) CN429 X54-348 2/2 TO TX-RX UNIT (B/3) CN429 ABCDE X57-698 1/9 TX-RX UNIT (X57-6980-10) (B/3) TO DISPLAY UNIT CN902 JIHGF X57-698 2/9 KLMNO X57-698 3/9 TSRQP X57-698 4/9 UVWXY X57-698 5/9 TX-RX UNIT (X57-6980-10)(C/3) ADACABAAZ TX-RX UNIT (X57-6980-10) (B/3) X57-698 6/9 AE AF AG AH AI X57-698 7/9 SCHEMATIC DIAGRAM TK-7180 ANAMALAKAJ X57-698 8/9 68 1 Note : The components marked with a dot () are parts of layer 1. 2 3 TX-RX UNIT (X57-6980-10)(A/3) TX-RX UNIT (X57-6980-10) (B/3) TO DISPLAY UNIT CN902 TX-RX UNIT (X57-6980-10)(C/3) INTERCONNECTION DIAGRAM 69 CN701 IC1 IC417 TK- 7 1 80 BLOCK DIAGRAM TK-7180 LEVEL DIAGRAM Receiver Section Transmitter Section LEVEL DIAGRAM 74 External View KRK-10 Parts List INTERFACE UNIT (X46-3310-20) Components Description TK-7180 Exploded View and Packing PC Board J72-0934-09 B/2 J72-0934-09 A/2 Component side Foil side Layer 1 Layer 2 Component side Foil side Schematic Diagram INTERFACE UNIT (X46-3310-20) (B/2) Display Side INTERFACE UNIT (X46-3310-20) (A/2) Radio Side Terminal Function OPTIONAL ACCESSORIES SPECIFICATIONS KENWOOD CORPORATION GENERAL RECEIVER (Measurements made per EIA/TIA-603) TRANSMITTER (Measurements made per EIA/TIA-603)