IC-2200H_serv.pdf

VHF TRANSCEIVER i2200H SERVICE MANUAL MODELVERSIONSYMBOL EUR TPE KOR EXP EXP-1 INTRODUCTION This service manual describes the latest service information for the IC-2200H VHF TRANSCEIVER at the time of publica- tion. DANGER NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. This will ruin the transceiver. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when con- necting the transceiver. DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector. This could damage the transceiv- ers front end. ORDERING PARTS Be sure to include the following four points when ordering replacement parts: 1. 10-digit order numbers 2. Component part number and name 3. Equipment model name and unit name 4. Quantity required 1130008350 S.ICLV2105VIC-2200H MAIN UNIT5 pieces 8810009610 ScrewFH M2.66 ZKIC-2200HCover10 pieces Addresses are provided on the inside back cover for your convenience. REPAIR NOTES 1. Make sure a problem is internal before disassembling the transceiver. 2. DO NOT open the transceiver until the transceiver is disconnected from its power source. 3. DO NOT force any of the variable components.Turn them slowly and smoothly. 4. DO NOT short any circuits or electronic parts. An insu- lated tuning tool MUST be used for all adjustments. 5. DO NOT keep power ON for a long time when the trans- ceiver is defective. 6. DO NOT transmit power into a signal generator or a sweep generator. 7. ALWAYS connect a 40 dB to 50 dB attenuator between the transceiver and a deviation meter or spectrum ana- lyzer when using such test equipment. 8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver. To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. Europe EUR-1 USA Taiwan U.S.A. Korea Export Europe-1 Export-1 IC-2200H Icom, Icom Inc. and are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries. TABLE OF CONTENTS SECTION 1SPECIFICATIONS SECTION 2INSIDE VIEWS 2 - 1IC-2200H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1 2 - 2HM-133V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 2 SECTION 3OPTIONAL UNIT INSTALLATION SECTION 4CIRCUIT DESCRIPTION SECTION 5ADJUSTMENT PROCEDURES SECTION 6PARTS LIST SECTION 7MECHANICAL PARTS AND DISSASEMBLY 7 - 1IC-2200H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 - 1 7 - 2HM-133V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 - 1 SECTION 8SEMI-CONDUCTOR INFORMATION SECTION 9BOARD LAYOUTS 9 - 1LOGIC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 1 9 - 2MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 3 9 - 3HM-133V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 5 9 - 4HM-118TN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 7 SECTION 10BLOCK DIAGRAMS 10 - 1 IC-2200H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 - 1 10 - 2 HM-133V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 - 2 SECTION 11VOLTAGE DIAGRAMS 11 - 1 LOGIC UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 - 1 11 - 2 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 - 2 11 - 3 HM-133V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 - 3 SECTION 12HM-118/N (OPTIONAL UNIT) 12 - 1 INSIDE VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 - 1 12 - 2 BOARD LAYOUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 - 1 12 - 3 MECHANICAL PARTS LIST AND DISSASEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 - 2 SECTION 13UT-108 (OPTIONAL UNIT) 13 - 1 BOARD LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 - 1 SECTION 14UT-115 (OPTIONAL UNIT) 14 - 1 BOARD LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 - 1 14 - 2 SEMI-CONDUCTOR INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 - 2 14 - 3 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 - 2 14 - 4 VOLTAGE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 - 3 1 - 1 SECTION 1SPECIFICATIONS MGENERAL Frequency range: * 1Specifications guaranteed 144.000 146.000 MHz only * 2Specifications guaranteed 144.000 148.000 MHz only Mode: FM, AM (Receive only) Number of memory channel: 206 (include in 6 band edges memory and 1 call channel) Usable temperature range: 10C to +60C; +14F to +140F Scan type: Full, Program, Priority, Memory channel, Bank, Skip and Tone scans Frequency resolution: 5, 10, 12.5, 15, 20, 25, 30 and 50 kHz Frequency stability: 10 ppm (10C to +60C; +14F to +140F) Power supply requirement: 13.8 V DC 15 % (negative ground) Current drain (at 13.8 V DC): ReceiveStandby (squelched)0.8 A Max. audio1.0 A Transmit at 65 W or 50 W15.0 A (except TPE) at 25 W9.0 A at 24 W10.0 A (TPE only) at 10 W6 A (except TPE) at 5 W5 A Antenna connector: SO-239 (50 ) Dimensions : 140(W)40(H)146(D) mm; (projections not included)512(W)1916(H)534(D) inch Weight: Approx. 1.25 kg; 2 lb 12 oz MTRANSMITTER Output power: Modulation system: Variable reactance frequency Maximum frequency deviation: 5.0/2.5* kHz*except EXP-1 Spurious emissions: Less than 60 dBc Microphone connector: 8-pin modular (600 ) MRECEIVER Receive system: Double-conversion superheterodyne Intermediate frequency: 1st21.7 MHz 2nd450 kHz Sensitivity (at 12 dB SINAD): Less than 0.18 V Squelch sensitivity (threshold): Less than 0.13 V Selectivity: (Wide)More than 6 kHz at 6 dB, More than 14 kHz at 60 dB (Narrow)*More than 3 kHz at 6 dB, More than 9 kHz at 55 dB *except EXP-1 Spurious and image rejection : More than 60 dB Audio output power (at 13.8 V): More than 2.4 W at 10% distortion with an 8 load External speaker connector: 2-conductor 3.5(d) mm (18)/8 All stated specifications are subject to change without notice or obligation. HighMiddle-highMiddle-lowLow 65 W25 W10 W5 W 50 W25 W10 W5 W 24 W10 W5 W Version except TPE, KOR KOR TPE Receive (MHz)Transmit (MHz) 118.000 174.000* 1 144.000 146.000 118.000 174.000* 2 144.000 148.000 118.000 174.000* 2 136.000 174.000* 2 144.000 146.000144.000 146.000 Version EUR USA EXP, EXP-1 EUR-1, TPE, KOR 1 - 2 UT-115 SPECIFICATIONS MGENERAL Usable temperature range: 10C to +60C; +14F to +140F Power supply requirement: 5.0 V DC (4.5 V8.5 V for AMBE IC VCC line) AF input level: 1 Vp-ptypical Modulation output level: 350 mVp-ptypical Demodulation input level: 500 mVp-ptypical AF output level: 750 mVp-ptypical CODEC type: AMBE Transfer speed: 4.8 kbps Control signal input voltage: 3.0 V5.0 V for High 0 V for Low Control signal output voltage : Open collector for High 0 V for Low Current drain (at 5.0 V DC): 55 mA typical Dimentions: 30(W)38(D) mm; (projections not included)1316(W)112(D) inch Weight: Approx. 6 g; 732oz (accessoreis not included) Connector: AXN430C330 All stated specifications are subject to change without notice or obligation. 2 - 1 SECTION 2INSIDE VIEWS 2-1 IC-2200H MAIN UNIT (TOP VIEW) Power module (IC10: S-AV36) Discriminator (X2: CDB450C24) AGC (Q38: XP6501) Reference oscillator (X1: CR-779 21.25MHz) Power switch circuit Q28*: 2SC4684 Q30: DTA143TUA Q31: DTC143ZU Speaker AF power amplifier (IC9: TA7252AP) VCO circuit *Located under side of the point Power module (IC10: S-AV36) Discriminator (X2: CDB450C24) AGC (Q38: XP6501) Reference oscillator (X1: CR-779 21.25MHz) Power switch circuit Q28*: 2SC4684 Q30: DTA143TUA Q31: DTC143ZU Speaker AF power amplifier (IC9: TA7252AP) VCO circuit *Located under side of the point IF filter FI1: CFWS450F FI2: CFWS450HT IF filter FI1: CFWS450F FI2: CFWS450HT Power module (IC10: S-AV36) Discriminator (X2: CDB450C24) AGC (Q38: XP6501) Reference oscillator (X1: CR-779 21.25MHz) Power switch circuit Q28*: 2SC4684 Q30: DTA143TUA Q31: DTC143ZU Speaker AF power amplifier (IC9: TA7252AP) VCO circuit *Located under side of the point 2nd IF filter FI1: CFWS450F FI2: CFWS450HT MAIN UNIT (BOTTOM VIEW) APC controller (IC6: NJM3404AV) C5V regulator (IC8: TA78L05F) +8V regulator (IC7: TA7808F) TX/RX switch (D6, D7: MA77) PLL IC (IC1: LV2105V) Enphasis switch (Q41: 2SC4617) RF amplifier (Q27: 3SK299) Mixer (Q19: 3SK299) IF amplifier (Q16: 2SC4406) IF detector (IC4: TA31136FN) D/A converter (IC5: M62363FP) APC controller (IC6: NJM3404AV) C5V regulator (IC8: TA78L05F) +8V regulator (IC7: TA7808F) TX/RX switch (D6, D7: MA77) PLL IC (IC1: LV2105V) Enphasis switch (Q41: 2SC4617) RF amplifier (Q27: 3SK299) Mixer (Q19: 3SK299) IF amplifier (Q16: 2SC4406) IF detector (IC4: TA31136FN) D/A converter (IC5: M62363FP) APC controller (IC6: NJM3404AV) C5V regulator (IC8: TA78L05F) +8V regulator (IC7: TA7808F) TX/RX switch (D6, D7: MA77) PLL IC (IC1: LV2105V) Enphasis switch (Q41: 2SC4617) RF amplifier (Q27: 3SK299) 1st Mixer (Q19: 3SK299) IF amplifier (Q16: 2SC4406) FM IF IC (IC4: TA31136FN) D/A converter (IC5: M62363FP) 2-2 HM-133V CPU (IC1: PD789071) Reset IC (IC3: BD5245G) EE-PROM (IC6: BR24L02FV) 5V regulator Q1: 2SC2712 D1: MA8056 CPU (IC1: PD789071) Reset IC (IC3: BD5245G) EE-PROM (IC6: BR24L02FV) 5V regulator Q1: 2SC2712 D1: MA8056 LED driver Q6, Q7: 2SA1586 DS10*: LT1EP53A LED driver Q6, Q7: 2SA1586 DS10*: LT1EP53A Regulator switch Q8: 2SC2712 Q9: DTB113ZK Regulator switch Q8: 2SC2712 Q9: DTB113ZK LED driver Q4, Q5: 2SA1586 DS11*: LT1EP53A LED driver Q4, Q5: 2SA1586 DS11*: LT1EP53A Data buffer circuit Q2: DTC114EU Q3: DTA114EU Data buffer circuit Q2: DTC114EU Q3: DTA114EU CPU (IC1: PD789071) Reset IC (IC3: BD5245G) EE-PROM IC6: BR24L02FV MAIN-A unit only 5V regulator Q1: 2SC2712 D1: MA8056 LED driver Q6, Q7: 2SA1586 DS10*: LT1EP53A Regulator switch Q8: 2SC2712 Q9: DTB113ZK LED driver Q4, Q5: 2SA1586 DS11*: LT1EP53A Data buffer circuit Q2: DTC114EU Q3: DTA114EU *Located under side of the point 2 - 2 SECTION 3OPTIONAL UNIT INSTALLATION 3 - 1 Remove DIAL and unscrew the 2 allen-socket bolts from the front panel using with an allen wrench (2.5 mm; 110). NOTE: When attaching the front panel to the main unit, make sure the flat cable are running in the groove to pre- vent catching between front panel and main unit. Return the front panel and the allen-socket bolts to their original position. Attach the insulation sheet (supplied as accessory) to IC on the Front unit. Remove the protective paper attached to the bottom of the optional unit to expose the adhesive strip. Detach the front panel from the main unit. Intall the unit as illustrated below. Insert tightly to avoid bad contact. Allen-socket bolts Insulation sheet Flat cable 4 - 1 SECTION 4CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS 4-1-1 ANTENNA SWITCHING CIRCUIT (MAIN UNIT) The antenna switching circuit functions as a low-pass filter while receiving and a resonator circuit while transmitting. The circuit does not allow transmit signals to enter receiver circuits. Received signals enter the antenna connector and pass through the low-pass filter (L47, L48, C208, C210, C217). The filtered signals are passed through the /4 type anten- na switching circuit (D16, D19, L45, L46) and limiter circuits (D15). The signals are then applied to the squelch attenua- tor circuit. 4-1-2 SQUELCH ATTENUATOR CIRCUIT (MAIN UNIT) The attenuator circuit attenuates the signal strength to a maximum of 10 dB to protect the RF amplifier from distortion when excessively strong signals are received. The current flow of the antenna switching circuit (D16, D19) is controlled by the SQL control via the attenuator con- troller (IC6a, D18). When the SQL control is rotated clock- wise deeper than 12 oclock, the current of D16 and D19 is increased. In this case, D16 and D19 act as an attenuator. 4-1-3 RF CIRCUIT (MAIN UNIT) The RF circuit amplifies signals within the range of frequen- cy coverage and filters out-of-band signals. The signals from the squelch attenuator circuit pass through the tunable bandpass filter (D13). The filtered signals are amplified at the RF amplifier (Q27) and then enter another three-stage bandpass filters (D9D11) to suppress unwant- ed signals. The filtered signals are applied to the 1st mixer circuit (Q19). The tunable bandpass filters (D13D16) employ varactor diodes to tune the center frequency of the RF passband for wide bandwidth receiving and good image response rejec- tion. These diodes are controlled by the CPU (LOGIC unit; IC1) via the D/A convertor (IC5). 4-1-4 1ST MIXER AND 1ST IF CIRCUITS (MAIN UNIT) The 1st mixer circuit converts the received signals to a fixed frequency of the 1st IF signal with the PLL output frequency. By changing the PLL frequency, only the desired frequency will pass through a pair of crystal filters at the next stage of the 1st mixer. The RF signals from the bandpass filter are applied to the 1st mixer circuit (Q19). The applied signals are mixed with the 1st LO signal coming from the RX-VCO circuit (Q7, D5, D38) to produce a 21.7 MHz 1st IF signal. The 1st IF signal passes through a pair of crystal filters (FI3, FI4) to suppress out-of-band signals. The filtered signal is amplified at the 1st IF amplifier (Q16), and applied to the 2nd IF circuit via the limiter circuit (D29). 4-1-5 2ND IF AND DEMODULATOR CIRCUITS (MAIN unit) The 2nd mixer circuit converts the 1st IF signal to a 2nd IF signal. A double-conversion superhete