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TRANSCEIVER 144MHz FM IC-2100H IC-2100-T learn Inc.
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NEVER This service manual describes the latest service information connect the transceiver to an AC outlet or to a DC IC-2100H/IC-2100-T 144 MHz FM for the TRANSCEIVER at power supply that uses more than 16 V. This will ruin the the time of publication.
TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION CIRCUIT DESCRIPTION RECEIVE R CI RCUITS • • • 3- 2 T RAN S MllTER CIRCUITS 3·2 ... . PLL C I RCUITS .
SECTION INSIDE VIEWS •MAIN UNIT IC4: SC-1091 for IC·2100H SC-1005 for IC·2100- 1st IF filter (F11: FL-288) AF Power amplffier -- (ICS· TA7252AP) 2nd IFfilter (Fl2: CFWS450F) VCO circuit---- -- 2nd IF fi l ter (F13: CFWS450HT) [EUR], [ITA] only (X2: CDB450C24) (X1: CR·549) RF amplifi e r----...
SECTION CIRCUIT DESCRIPTION 3-1 RECEIVER CIRCUITS 3·1-5 2ND IF AND DEMODULATOR CIRCUITS (MAIN unit) 3-1·1 ANTENNA SWITCHING CIRCUIT {MAIN unit) The 2nd mixer circuit converts the 1st signal to a 2nd The antenna switching circuit functions as a low-pass filter signal.
unit) a.2-3 a.1-7 SQUELCH CIRCUIT (MAIN and LOGIC units) DRIVE AMPUAER CIRCUIT (MAIN • The drive amplifier circuit amplifies the VCO oscillating signal NOISE SQUELCH to the level needed at the power amplif i e r. The noise squelch circuit cuts out A F signals when no R F sig nals are received.
3-4 POWER SUPPLY CIRCUITS 3-3 PLL CIRCUITS 3·3·1 PLL CIRCUIT VOLTAGE LINES A PLL circuit provid es stable oscillation o f the transmit fre Description Line quency and the receive 1st LO frequency. The PLL circuit compares the phase of the d ivided VCO frequency to the ref The voltage from the connected DC power sup- erence frequency.
3-5 PORT ALLOCATIONS 3·5'-1 CPU (LOGIC UNIT IC1) Port Port Description Description number name number name cress Input port for the PTT sw i t ch. nput port f o r the decode sig- TONEIN nals. High : While PTT switch I s pushed. Input port to detect remote microphon Input port for the reset signal.
SECTION ADJUSTMENT PROCEDURES 4-1 PREPARATION All adjustments in this section must performed on wide bandwidth condit i o n unless specified otherwise. ( N arrow bandwidth is selectable for Europe and Italy vertions only.) •REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE Output voltage...
4-2 PLL ADJUSTMENTS ADJUSTMENT MEASUREMENT POINT ADJUSTMENT ADJUSTMENT CONDmoN VALUE UNIT LOCATION UNIT ADJUST • Displayed frequency : MAIN 1.25-1.30 PLL LOCK Connect a digital MAIN VOLTAGE 14 5.000 MHz multi-meter or oscil- •Receiving loscope check point CP1. • Transmitting 1.45-1.55 •...
3 TRANSMITTER AND RECEIVER ADJUSTMENTS The receiver adjustments must performed after PLL ADJUSTMENTS. ADJUSTMENT MEASUREMENT POINT VALUE ADJUSTMENT ADJUSTMENT CONDITION ADJUST UNIT LOCATION UNIT • Displayed frequency : Rear Connect W [T MAIN POWER 145.000 [EUR, TPE, THA] Panel power meter to the 25 W [TPE] 146.000 [ITA, USA, SEA,...
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power supply 13.8 V /20A Sensitivity adjustment Output power adjustment R163 Deviation Squelch adjustment adjustment Sensitivity check point JIG CONNECTOR • · ·• to micro hone connector 2.2k0 \� _ _ _ ___________________ ,,...
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SECTION PARTS LIST [LOGIC UNIT] [LOGIC UNIT] ORDER ORDER DESCRIPTION DESCRIPTION S.RESISTOR ERJ3GEYJ 104 V (100 kn) 114 000 7 020 S.IC H064338 7 5A83H 7030003680 (THAI only EAJ3GEYJ 391 V (390 O} other S.RESISTOR 114000 7 420 S.IC HD6433875A85H 7030003 390 MCRSOJZHJ 18 0 (180) S.IC...
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[LOGIC UNIT] [LOGIC UNIT] ORDER ORDER DESCRIPTION DESCRIPTION 4030009980 S.CERAMIC C16o8 1H 152K-T-A 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kn} ERJ3GEYJ 102 V (1 kn) 4030008630 $.CERAMIC C1608 1C 104Z-T·A 7030003440 S.RESISTOA C1608 JF 1C 1 04Z·T·A S.RESISTOA ERJ3GEYJ 103 V (10 kn) 4030008630 $.CERAMIC 7030003560 $.CERAMIC...
SECTION 6 MECHANICAL PARTS AND DISASSEMBLY [CHASSIS PARTS] [ACCESSORIES] QTY. QTY. REF. NO. ORDER NO. REF. NO. ORDER NO. DESCRIPTION DESCRIPTION 52100000 S O (20A) 6510004880 MR·DSE·01 Fuse Antena connector Optional [EUR), [ITA] prodOOI Mi c rophon HM-97 2510000 8 20 Speaker VS·57·0S14 Opti on al product Microphon...
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J1 (C) MP10 (L) LOGIC UNIT R61 (L) � MP16(C} MP2 (L) EP2 (L) MP15 (C) OSI (L) MPS (L) MP3 (L) MP6(C) 59 (l) MAIN UNIT MP8 (C) W1 (M) ..'!..MPS(C) MP6 (L) MP1 (M) -�.
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