User's Manual

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VHF TRANSCEIVER

i2200H

SERVICE

MANUAL

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Summary of content (54 pages)

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SERVICE MANUAL VHF TRANSCEIVER i2200H Downloaded by RadioAmateur.
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INTRODUCTION DANGER This service manual describes the latest service information for the IC-2200H VHF TRANSCEIVER at the time of publication. 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. MODEL IC-2200H VERSION SYMBOL DO NOT expose the transceiver to rain, snow or any liquids. Europe EUR Taiwan TPE DO NOT reverse the polarities of the power supply when connecting the transceiver. U.S.A.
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TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS 2-1 IC-2200H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1 2-2 HM-133V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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SECTION 1 M SPECIFICATIONS GENERAL • Frequency range : Version [EUR] [USA] [EXP], [EXP-1] [EUR-1], [TPE], [KOR] Receive (MHz) 118.000 – 174.000*1 118.000 – 174.000*2 118.000 – 174.000*2 Transmit (MHz) 144.000 – 146.000 144.000 – 148.000 136.000 – 174.000*2 144.000 – 146.000 144.000 – 146.000 *1Specifications guaranteed 144.000 – 146.000 MHz only 2 * Specifications guaranteed 144.000 – 148.
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• UT-115 SPECIFICATIONS M GENERAL • Usable temperature range • Power supply requirement : –10˚C to +60˚C; +14˚F to +140˚F : 5.0 V DC (4.5 V–8.5 V for AMBE IC VCC line) • AF input level : 1 Vp-p typical • Modulation output level : 350 mVp-p typical • Demodulation input level : 500 mVp-p typical • AF output level : 750 mVp-p typical • CODEC type : AMBE • Transfer speed : 4.8 kbps • Control signal input voltage : 3.0 V–5.
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SECTION 2 INSIDE VIEWS 2-1 IC-2200H • MAIN UNIT (TOP VIEW) Power module (IC10: S-AV36) Power switch circuit Q28*: 2SC4684 Q30: DTA143TUA Q31: DTC143ZU Speaker Discriminator (X2: CDB450C24) AF power amplifier (IC9: TA7252AP) 2nd IF filter IF filter FI1: CFWS450F FI2: CFWS450HT VCO circuit AGC (Q38: XP6501) Reference oscillator (X1: CR-779 21.
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2-2 HM-133V Reset IC (IC3: BD5245G) CPU (IC1: µPD789071) LED driver Q4, Q5: 2SA1586 DS11*: LT1EP53A LED driver Q6, Q7: 2SA1586 DS10*: LT1EP53A EE-PROM (IC6: IC6: BR24L02FV BR24L02FV) [MAIN-A] unit only 5V regulator Q1: 2SC2712 D1: MA8056 Data buffer circuit Q2: DTC114EU Q3: DTA114EU Regulator switch Q8: 2SC2712 Q9: DTB113ZK *Located under side of the point Downloaded by RadioAmateur.
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SECTION 3 OPTIONAL UNIT INSTALLATION ➀ Remove [DIAL] and unscrew the 2 allen-socket bolts from ➄ Intall the unit as illustrated below. Insert tightly to avoid the front panel using with an allen wrench (2.5 mm; 1⁄10″). bad contact. Flat cable Allen-socket bolts ➁ Detach the front panel from the main unit. Insulation sheet ➅ Return the front panel and the allen-socket bolts to their original position.
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SECTION 4 CIRCUIT DESCRIPTION The tunable bandpass filters (D13–D16) employ varactor diodes to tune the center frequency of the RF passband for wide bandwidth receiving and good image response rejection. These diodes are controlled by the CPU (LOGIC unit; IC1) via the D/A convertor (IC5). 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.
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The 2nd IF signal from the 2nd mixer (IC4, pin 3) passes through the ceramic filter (FI1) (during wide channel spacing selection or passes through FI2 during narrow channel spacing selection; [W/N] only). The audio signals are applied to the AF mute switch (MAIN unit; Q29) via the VOL adjust pot (R61). The signals are amplified at the AF amplifier (MAIN unit; IC9, pin 1) to obtain 2.4 W audio output power after being passed through the emphasis switch (MAIN unit; Q41).
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• IN CASE OF ANALOG AF SIGNALS The AF signals are applied to the DI/AN switch (IC522, pin 9), and are then reapplied to the switch (pin 4) from pin 8.The signals output from the switch (pin 3) as analog AF signals , and are then applied to the modulation circuit after being passed through the J3 via the “MODIN” line.
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An oscillated signal from the VCO passes thorough the LO and buffer amplifiers (Q9, Q12) is applied to the PLL IC (IC1, pin 6) and is prescaled in the PLL IC based on the divided ratio (N-data). The reference signal is generated at the reference oscillator (X1) and is also applied to the PLL IC. The PLL IC detects the out-of-step phase using the reference frequency and outputs it from pin 15.
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4-5 PORT ALLOCATIONS 4-3-3 REFERENCE OSCILLATOR CONTROL CIRCUIT (LOGIC AND MAIN UNITS) 4-5-1 D/A CONVERTER IC (MAIN UNIT; IC5) The reference oscillator control circuit changes the reference frequency when using digital voice function. Pin number Port name Description When digital voice signals output from the optional digital voice unit, the “REFMOD” signal outputs from it via the J4 (pin 4) at the same time.
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4-5-3 CPU (LOGIC UNIT; IC1) Pin number Port name 53–55 IS0–IS2 56, 57 KS1, KS2 Output key scan signals Input port for squelch volume detecting signal. 58–61 KR3–KR0 Input ports for the keyboard matrix signals. MICUD Input port for the [∫] and [√] switches from the external microphone. 62 PTT Input port for the [PTT] switch signal. High: While transmitting. 4 SD Input port for the S-meter voltage detecting signal.
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4-6 UT-115 CIRCUIT DESCRIPTION 4-7 UT-115 POWER SUPPLY CIRCUITS 4-6-1 RECEIVER CIRCUIT VOLTAGE LINES The detected digital signals “FMDET” from the connected transceiver via the J301 (pin 22) are amplified at the buffer amplifier (IC251, pin 2). The amplified signals are applied to the GMSK modem circuit (IC252, pin 11), and are then applied to the CPU (IC204) as clock synchronizer digital signal.
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4-8-2 CPU (IC2) Pin number Port name Description 7 RES Input port for the reset signal from the reset IC (IC203, pin 1). Low :The CPU is reset. 10 OSC2 Outputs 9.8304 MHz reference signal. 11 OSC1 Input port for 9.8304 MHz reference signal. 16 APWR Outputs 3.2V regulator circuit (IC2, pin 3) control signal. 29 Outputs receive AF mute control signal to the connected transceiver via the RMUTE_C J301 (pin 24). High :While muting.
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SECTION 5 ADJUSTMENT PROCEDURES 5-1 PREPARATION Enter the adjustment mode when adjusting the IC-2200H Then the JIG cable as shown the page 5-2 is required . ■ REQUIRED TEST EQUIPMENT EQUIPMENT GREDE AND RANGE DC power supply Output voltage Current capacity : 13.8 V DC : 20 A or more RF power meter (terminated type) Measuring range Frequency range Impedance SWR : : : : Frequency range Frequency accuracy Sensitivity : 0.
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‘ CONNECTIONS FM DEVIATION METER to the antenna connector ATTENUATOR 50 dB or 60 dB RF POWER METER 50 , 1 80 W STANDARD SIGNAL GENERATOR 0.1 300 MHz 127 to 17 dBm (0.1 V to 32 mV) POWER SUPPLY 13.8 V, 20 A or more CAUTION! DO NOT transmit while an SSG is connected to the antenna connector. JIG CABLE INFORMATION pin 6 (MIC) pin 5 (MICE) AUDIO GENERATOR 300 Hz to 3 kHz pin 7 (GND) pin 4 (PTT) NOTE: DO NOT adjust items with "*" mark at below explanation.
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5-2 SOFTWARE ADJUSTMENTS (TRANSMITTING AND RECEIVING) ADJUSTMENT ADJUSTMENT CONDITION OPERATION • Turn the [DIAL] to set to 146.0000 MHz. : 146.0 MHz REFERENCE 1 • Operating frequency • Loosely couple a frequency counter to the antenna • Push the [S.MW] key. FREQUENCY connector on the rear panel. [Fr] • Transmitting REFERENCE 1 • Operating frequency • Receiving VOLTAGE [rE] • Push the [S.MW] key. : 146.0 MHz VHF OUTPUT POWER (High) [PO] • Turn the [DIAL] to set the VHF high power to 67 W. : 146.
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SOFTWARE ADJUSTMENTS (TRANSMITTING AND RECEIVING)–Continued ADJUSTMENT ADJUSTMENT CONDITION OPERATION • Turn the [DIAL] to set to ±0.85 kHz. : 146.0 MHz 1 • Operating frequency DIGITAL • Push the [S.MW] key after finish adjustment. • IF bandwidth : Wide REFERENCE • No audio signal is applied to the [MIC] jack. DEVIATION • Connect an FM deviation meter to the antenna con[dt+DIGITAL] nector and set as : HPF : OFF LPF : 20 kHz De-emphasis : OFF Detector : (P–P)/2 • Transmitting • Push the [S.MW] key. : 118.
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5-3 UT-115 ADJUSTMENT PROCEDURES • PREPARATION Enter the adjustment mode when adjusting the UT-115. ■ REQUIRED TEST EQUIPMENT EQUIPMENT GREDE AND RANGE EQUIPMENT DC power supply 1 Output voltage Current capacity : 5.0 V DC : 1 A or more DC power supply 2 Output voltage Current capacity : 8.0 V DC : 1 A or more GREDE AND RENGE Frequency counter Frequency range Frequency accuracy Sensitivity : 0.
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5-4 TRIMMER ADJUSTMENTS ADJUSTMENT POINT MEASUREMENT UNIT MEASUREMENT LOCATION UNIT ADJUST 1 CODEC FREQUENCY SET MAIN Connect the frequency counter to the check point CP101. 16.38400 MHz ±10 Hz MAIN C102 1 MODEM FREQUENCY SET MAIN Connect the frequency counter to the check point CP216. 2.457600 MHz ±3 Hz MAIN C207 MODURATION 1 OUTPUT LEVEL 2 MAIN • Transmit the UT-115 to connect J301, pin 1 to GND.
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SECTION 6 PARTS LIST [LOGIC UNIT] 6-1 IC-2200H [LOGIC UNIT] REF NO. REF NO. ORDER NO. DESCRIPTION IC1 1140011860 1140011861 1140011910 S.IC S.IC S.IC IC2 IC3 IC4 IC5 IC6 IC24 IC514 IC520 IC521 IC522 IC524 IC525 1130004200 1110005340 1110006210 1140008650 1130011770 1110002860 1110005310 1130011770 1130008560 1130011770 1130011780 1130011770 Q1 Q2 Q3 Q5 Q6 Q7 Q8 Q12 Q513 Q514 Q515 Q524 Q525 Q527 Q528 M. S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.
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[LOGIC UNIT] REF NO. R104 [LOGIC UNIT] ORDER NO. 7030005080 DESCRIPTION S.RESISTOR R105 R106 R107 R108 R109 7030008290 7030005090 7030005050 7030005090 7030005050 7030005600 S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.RESISTOR S.
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[LOGIC UNIT] REF NO. EP12 [MAIN UNIT] ORDER NO. 0910057732 DESCRIPTION PCB REF NO. M. B 6048B [MAIN UNIT] REF NO. ORDER NO. DESCRIPTION M. IC1 IC2 IC4 IC5 IC6 IC7 IC8 IC9 IC10 IC11 IC12 1130008350 1130011760 1110003490 1190000350 1110004050 1180001250 1180000970 1110002550 1150002180 1110004050 1130011780 S.IC S.IC S.IC S.IC S.IC S.IC S.IC IC S.IC S.IC S.
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[MAIN UNIT] REF NO. [MAIN UNIT] ORDER NO.
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[MAIN UNIT] REF NO. C31 C32 C34 C36 C37 C38 C39 C40 C41 C42 C44 C45 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C93 C94 C95 C97 C98 C100 C101 C105 C108 C111 C113 C117 C118 C120 C122 C123 C124 C125 C127 C128 C131 C133 C134 C136 C137 C138 C139 C140 C141 C145 C146 [MAIN UNIT] ORDER NO.
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[MAIN UNIT] REF NO. ORDER NO. DESCRIPTION C271 C272 C273 C278 C279 C280 C281 C282 C283 C284 C285 4550006140 4030011600 4550006480 4510004540 4510004440 4550006130 4510005830 4030006860 4030006860 4030008880 4030008920 S.TANTALUM S.CERAMIC S.TANTALUM S.ELECTROLYTIC S.ELECTROLYTIC S.TANTALUM S.ELECTROLYTIC S.CERAMIC S.CERAMIC S.CERAMIC S.
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[MAIN UNIT] REF NO. [MAIN-A UNIT] ORDER NO. DESCRIPTION REF NO. M. C4 C5 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C21 C22 C23 C24 C25 C26 C27 C29 C30 C31 4030007130 4030007050 4030007050 4030007050 4030007050 4030006860 4030006860 4030008920 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4030006860 4510004630 4030011600 4510004630 S.CERAMIC S.CERAMIC S.CERAMIC S.CERAMIC S.CERAMIC S.CERAMIC S.CERAMIC S.CERAMIC S.CERAMIC S.
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[MAIN-A UNIT] REF NO. ORDER NO. DESCRIPTION M. 6-3 UT-108 (OPTIONAL UNIT) [MAIN UNIT] REF NO. ORDER NO. DESCRIPTION M. DS7 DS8 DS10 DS11 5010000120 5010000120 5010000150 5010000150 S.LED S.LED S.LED S.LED LN1371G-(TR) LN1371G-(TR) LT1EP53A LT1EP53A T T T T IC1 IC2 1130007560 1130007300 S.IC S.IC LC73881M-TLM TC4W66FU (TE12L) B B MC1 7700002310 MICROPHONE EM-140 T X1 6050005090 XTAL CR-245 (4.194304 MHz) T S1 2260000980 SWITCH SKHHLP014A B L1 6200001260 S.
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6-4 UT-115 (OPTIONAL UNIT) [MAIN UNIT] [MAIN UNIT] REF NO. ORDER NO. IC1 IC2 IC50 IC101 IC103 IC151 IC202 IC203 IC204 IC251 IC252 IC253 IC254 IC351 1180002390 1180002370 1130011630 1130008360 1130006890 1130010920 1130010460 1110005730 1140010770 1110005290 1110005430 1110006200 1130004200 1120002980 S.REG S.REG S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.IC S.
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SECTION 7 MECHANICAL PARTS AND DISSASEMBLY 7-1 IC-2200H [CHASSIS PARTS] REF. NO. [ACCESSORIES] ORDER NO. DESCRIPTION REF. NO. QTY. ORDER NO. DESCRIPTION QTY.
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MP3 (C) 61.0 (2 13/32) 54.3 (2 1/8) MP2 (C) J1 (C) HM-133V MAIN/MAIN-A UNIT MP6 (C) MP9 (C) 104.0 (4 3/32) Unit: mm (inch) S1 (M) Unit abbreviations (C):CHASSIS PARTS (M): MAIN/MAIN-A UNIT MP8 (C) 31.
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SECTION 8 SEMI-CONDUCTOR INFORMATION • TRANSISTORS AND FET’S 2SA1362 Y (Symbol: AEY) • DIODES 2SA1576A T106 R (Symbol: FR) B 2SA1586 GR (Symbol: SG) B C E C B 2SC4213 B (Symbol: AB) B B B B 2SC4406 (Symbol: JT) B E C G2 S G1 DTA144EUA T106 (Symbol: 16) B C E DTC144TU T106 (Symbol: 06) C E A MA2S077 (Symbol: S) C MA2S111 (Symbol: A) A C XP4601 (Symbol: 5C) XP6501 AB (Symbol: 5N) MA8056 M (Symbol: 5-6) C A C MA2S30400 L (Symbol: K) HVU131TRF (Symbol: P1) A C MA77 (Sy
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SECTION 9 BOARD LAYOUTS 9-1 LOGIC UNIT • TOP VIEW PWR VOL DIAL S.
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9-3 232TX 232RX GND CLONE PWRON LVIN VOLOUT C5V +8V +8V +8V EXSTB GND GND SO PLLCK PLLSTB OE BSHIFT DEGI_W REF_V UNLK MODIN TEMP SCK OPV1 GND GND +5V +5V +5V IDET DETO CTCSS SD NOIS red black 9-2 MAIN UNIT • TOP VIEW ANT DC power CHASSIS unit J1 EP12 EP 11 9 16 J11 35 36 to the LOGIC unit J3 8 5 1 4 8 1 1 2 1 8 4 5
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• BOTTOM VIEW (MAIN UNIT) DATA 4 1 5 8 1 1 8 24 1 16 8 9 SP 16 9 12 13 9-4
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9-3 HM-133V NOTE: • TOP VIEW (MAIN UNIT) HM-133V’s main unit has 2 versions (MAIN or MAIN-A). MAIN unit employs old type CPU, MAIN-A unit employs new type one. Make sure to be used whether MAIN unit or MAIN-A unit before servicing.
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• BOTTOM VIEW (MAIN-A UNIT) • BOTTOM VIEW (MAIN UNIT) PTT 8 4 5 8 J1 16 8 9 11 10 20 1 2 7 8 J1 to the IC-2200H LOGIC unit J1 2 MDATA MIC PTT MU/D 1 1 E MICE M8VSW M8V 15 Downloaded by RadioAmateur.
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9-4 HM-118TN • TOP VIEW • BOTTOM VIEW (HM-118TN) UP 11 DN 14 8 1 7 10 PTT UP DOWN LOCK 1 8 2 8V NC MICE GND J1 U/D PTT MIC HANG 20 7 9-7 1 to the IC-2200H LOGIC unit J1
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SECTION 10 BLOCK DIAGRAMS 10-1 IC-2200H +8V IC11 NJM3404V SHIFT IC1 LV2105V Q1 2SC4116 Q3 2SC4116 Q5 2SC4116 Q8 DTA113ZU D1 MA2S111 VCO REG Downloaded by RadioAmateur.EU REF OSC PLL IC Q10 2SK1069 T8 LO AMP Q9 2SC4226 Q11 2SC4226 50-100mW PRE DRIVE TX/RX SW BUFF D12 XB15A407 D19 XB15A308 D16 HVU131TRF for CPU IC10 S-AV36 D6 MA77 D7 MA77 LOOP FIL OUT (LOOP-SW) MOD Q4 2SC4116 D3 HVC376B X1 CR-779 (21.
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10-2 HM-133V (MAIN) IC3 S-80845CLUA D13 1SS355 (MAIN-A) IC3 BD5245G 5V Q8 2SC2712 Q9 DTB113ZK M8V REG CTRL Q1 2SC2712 D1 MA8056 RESET 5V REG D16,D17 MA8091 DS1-DS8 LN1371G BACK LIGHT PROTECTO MIC MIC GND Q2 DTC114EU Q3 DTA114EU DATA BUFF MDATA PROTECTO D18 MA8091 DATA RESET CPU IC2 MC14028BF MATRIX DRIVER IC1 µPD7564AG (MAIN) µPD789071 (MAIN-A) LED/ DRIVER Q4,Q5 2SA1586 DS11 LT1EP53A LED/ DRIVER Q6,Q7 2SA1586 DS10 LT1EP53A D14,D15 1SS355 (MAIN only) (MAIN only) EE-PROM KEY MATRIX
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SECTION 11 VOLTAGE DIAGRAMS 11-1 LOGIC UNIT LOGIC UNIT SIG_OUT EXTM1 C30 47p C15 0.001 C13 0.001 C10 0.001 C9 0.001 C5 47p C7 0.001 C4 0.001 C1 0.001 R40 47k D13 D23 +8V +8V +8V R44 1M R43 1M R42 1M C65 0.
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11-2 MAIN UNIT TXC C176 2p C174 0.001 W5 CHASSIS UNIT J1 J3 VOLTAGE LINE TX LINE RX LINE COMMON LINE R106 10k R191 270k HV +8V C288 0.22 HV +8V +8V HV +8V HV C296 0.001 C282 0.001 C283 0.001 R228 PTH9M04 R107 4.7k R104 1k C294 0.001 2 1 3 + IC6 NJM3404AV C149 0.1 R190 33k R192 270k L62 10µ C301 0.001 C256 0.001 C259 0.001 R194 100k R187 120k R131 82k C210 15p C208 33p C217 39p C196 1p C197 12p R126 8.2k Explanatory notes C198 0.001 R124 8.2k L42 0.
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11-3 HM-133V • MAIN UNIT • MAIN-A UNIT C:5.0V R38 220k D14 1SS355 D15 1SS355 G R G R DS10 LT1EP53A 5V R7 33k R6 33k Q3 DTA114EU Q2 DTC114EU Q5 2SA1586 C27 0.001 R11 680 Q6 2SA1586 R10 680 5V C26 0.001 R15 470 Q7 2SA1586 Q4 2SA1586 R9 10k R G G R12 10k R13 10k F:1.9V D:1.9V F:1.9V P:1.9V DS10 LT1EP53A VOLTAGE LINE 5V Explanatory notes DS11 LT1EP53A LED-S2 SEND LED-M2 LED-M1 TX LINE P:1.
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SECTION 12 HM-118/N (OPTIONAL UNIT) 12-1 INSIDE VIEW (HM-118/N) 12-2 BOARD LAYOUTS • TOP VIEW (MAIN UNIT) DOWN switch (S4: SKHHLM) UP swtich (S3: SKHHLM) PTT switch (S1: JPM1990-2013R) UP DOWN LOCK switch (S2: SSSS81560A) Microphone (MC1: KUC2123-030245) Downloaded by RadioAmateur.
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12-3 MECHANICAL PARTS LIST AND DISSASEMBLY • BOTTOM VIEW (MAIN UNIT) UP [CHASSIS PARTS] DN REF. NO. MP1 MP2 MP4 MP5 MP12 PTT MP13 MP15 MP16 MP18 MP19 MP25 MP27 ORDER NO.
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SECTION 13 UT-108 (OPTIONAL UNIT) 13-1 BOARD LAYOUT • TOP VIEW • BOTTOM VIEW 13 - 1 1 10 5 6 4 1 5 8 J1 1 PTTIN_C PTTOUT DMOD AMODIN F_RXD BUSY_C RES NC NC NC NC GND GND P01 15 NC AGND 30 5V VCC_8V TXD 232_TX 232_RX RMUTE FMDET DAFOUT REFMOD NC FLASH RXD_2_C TXD_2_C NC 16 to the IC-2200H LOGIC unit J4
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SECTION 14 UT-115 (OPTIONAL UNIT) 14-1 BOARD LAYOUT • TOP VIEW • BOTTOM VIEW 16 25 1 20 10 1 1 100 26 11 32 1 8 16 76 51 8 4 5 13 12 24 1 49 33 50 1 64 17 48 75 5 4 8 1 9 14 - 1 J301 1 PTTIN_C AGND 30 5V PTTOUT DMOD VCC_8V TXD AMODIN F_RXD 232_TX BUSY_C 232_RX RMUTE RES FMDET NC DAFOUT NC REFMOD NC NC NC FLASH GND GND RXD_2_C TXD_2_C P01 15 NC NC 16 to the IC-2200H LOGIC unit J4
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14-2 SEMICONDUCTOR INFORMATION 14-3 BLOCK DIAGRAM • TRANSISTORS AND FET’S 2SA1586 GR (Symbol: SG) DTC144EUA T106 (Symbol: 26_) XP4312 (Symbol: 7T) FOR FM_TRANCEVER OPTION CONNECTOR B B C C E E E1 C1 B1 B2 FLASH WRITER Explanatory notes E2 C2 Q305 XP4312 Q306 XP4312 VOLTAGE LINE TX LINE LEVEL CONVERT RX LINE FOR FM_TRANCEVER CPU LINE TXD_2 RXD_2 DATA BUS LINE MA2S111 (Symbol: A) Downloaded by RadioAmateur.
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14-4 VOLGTAGE DIAGRAM 3.3V ARES C58 0.1 C150 1 VCC_8V C205 0.1 2 4 R216 47k R217 47k ASTB ARXD ARES MCLK P85 P86 P87 TXD RXD ACQ NMI 4 TXD_2 3 RXD_2 CP101 ATXD ACLK AEPR ARES RMUTE ACQ MCLK TXCK RXCK RXDT TXDT 4 TXDT RXDT RXCK TXCK TXD_2 RXD_2 Q202 DTC144EU PSAVE 3 BUSY PSAVE 3 5 2 R103 1k R212 47k 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 P35 P34 P51/WKP1 P50/WKP0 VCC OSC1 OSC2 VSS TEST RES VCL X1 X2 AVCC PB7/AN7 PB6/AN6 1 P01 PTTIN R219 47k C156 0.1 C154 0.1 C155 0.
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