TK-880/H (UHF) mobile service manual - The Repeater Builder's ...

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TK-880/H ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications 1. Standard Signal Generator Frequency Range 400 to 520MHz (SSG) Modulation Frequency modulation and external modulation Output –127dBm/0.1µV to greater than –7dBm/100mV 2. Power Meter Input Impedance 50Ω Operation Frequency 400 to 520MHz or more Measurement Capability Vicinity of 100W 3. Deviation Meter Frequency Range 400 to 520MHz 4. Digital Volt Meter Measuring Range 1 to 20V DC (DVM) Accuracy High input impedance for minimum circuit loading 5. Oscilloscope DC through 30MHz 6. High Sensitivity Frequency Range 10Hz to 1000MHz Frequency Counter Frequency Stability 0.2ppm or less 7. Ammeter 20A 8. AF Volt Meter Frequency Range 50Hz to 10kHz (AF VTVM) Voltage Range 1mV to 20V 9. Audio Generator (AG) Frequency Range 20Hz to 20kHz or more Output 0 to 1V 10. Distortion Meter Capability 3% or less at 1kHz Input Level 50mV to 10Vrms 11. 4Ω Dummy Load Approx. 4Ω, 10W 12. Regulated Power Supply 13.6V, approx. 20A (adjustable from 9 to 17V) Useful if ammeter requipped Tuning cable (E30-3383-05) Test cable for microphone input (E30-3360-08) Adapter cable (E30-3383-05) is required for injecting an audio if PC tuning is used. See "PC Mode" section for the connection. MIC connector (Front view) Lead wire + 8 1 MIC Shiel wire – 1 : BLC 2 : PSB 3 : E 4 : PTT 5 : ME 6 : MIC 7 : HOOK 8 : CM 52
ADJUSTMENT TK-880/H Adjustment Location ■ Switch ■ Adjustment Point POWER BUSY/ TX LED MODULAR MIC JACK VOLUME DOWN VOLUME UP SUB DISPLAY PRIORITY MONITOR SERVICE SCAN AUXILIAY HANDSET MAIL MONITOR PROGRAMMABLE SCAN ALPHANUMERIC FUNCTION KEYS DISPLAY SYSTEM UP (Trunking Format) GROUP UP (Conventional Format) SYSTEM DOWN (Trunking Format) GROUP DOWN (Conventional Format) ■ Note • Flash memory The firmware program (User mode, Test mode, Tuning mode, etc.) and the data programmed by the FPU (KPG-49D) for the flash memory, is stored in memory. When parts are changed, program the data again. • EEPROM The tuning data (Deviation, Squelch, etc.) for the EEPROM, is stored in memory. When parts are changed, readjust the transceiver. TP1 VR1 TX-RX UNIT (A/2) PLL/VCO TC109 TC106 L6 Repair Jig (Chassis) Use jig (Part No. : A10-4010-02) for repairing the TK-880/ 880H. The jig facilitates the voltage check when the voltage on the component side TX-RX unit (A/2) is checked during repairs. Common Section Measurement Adjustment Item Condition Testequipment Unit Terminal Unit Parts Method Specifications/Remarks 1. PLL lock 1) Set test mode DVM TX-RX TP1 PLL TC106 1.5V : K,HK ± 0.1V voltage CH : CH3 - Sig1 Power meter (A/2) 2.5V : K2,HK2 PTT : ON (Transmit) F. conter TC109 3.5V : K3,HK3 2) CH : CH2 - Sig1 Check 8.0V or less PTT : ON (Transmit) 53
Page 1 and 2: UHF FM TRANSCEIVER TK-880/H SERVICE
Page 3 and 4: GENERAL / OPERATING FEATURES TK-880
Page 5 and 6: OPERATING FEATURES TK-880/H • Mes
Page 7 and 8: OPERATING FEATURES TK-880/H ■ Sys
Page 9 and 10: OPERATING FEATURES TK-880/H ■ Sub
Page 11 and 12: OPERATING FEATURES TK-880/H ■ “
Page 13 and 14: OPERATING FEATURES TK-880/H • Sta
Page 15 and 16: OPERATING FEATURES / REALIGNMENT TK
Page 17 and 18: REALIGNMENT TK-880/H Notes : • To
Page 19 and 20: REALIGNMENT TK-880/H 10. Function S
Page 21 and 22: INSTALLATION TK-880/H 1-3. Data Equ
Page 23 and 24: INSTALLATION TK-880/H SB LOK E DEO
Page 25 and 26: INSTALLATION TK-880/H 6-3. Installi
Page 27 and 28: INSTALLATION TK-880/H 6. Rotate the
Page 29 and 30: CIRCUIT DESCRIPTION TK-880/H ■ AF
Page 31 and 32: CIRCUIT DESCRIPTION TK-880/H ■ Di
Page 33 and 34: SEMICONDUCTOR DATA TK-880/H Micropr
Page 35 and 36: DESCRIPTION OF COMPONENTS TK-880/H
Page 37 and 38: PARTS LIST TK-880/H CAPACITORS CC 4
Page 39 and 40: PARTS LIST TK-880/H C63 CK73FB1E103
Page 41 and 42: PARTS LIST TK-880/H C432 CK73FB1E10
Page 43 and 44: PARTS LIST TK-880/H R62 RK73GB1J221
Page 45 and 46: PARTS LIST TK-880/H TX-RX UNIT (X57
Page 47 and 48: PARTS LIST TK-880/H C117 CK73GB1H47
Page 49 and 50: D PACKING E TK-880/H 11 DC cord (E3
Page 51: ADJUSTMENT TK-880/H Press [SCN], no
Page 55 and 56: Transmitter Section Item Condition
Page 57 and 58: ADJUSTMENT TK-880/H Item Condition
Page 59 and 60: 1 2 3 A B C D E F G H I J K L M N O
Page 61 and 62: A B C D E F G H I J K L M N O P Q R
Page 63 and 64: I I 1 A B C D E F G H I J K L M N O
Page 65 and 66: A B C D E F G H I J K L M N O P Q R
Page 67 and 68: TK-880/H LEVEL DIAGRAM TK-880/H Rec
Page 69 and 70: SPECIFICATIONS TK-880/H GENERAL Fre

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