SYNTHESIZED UHF TELEMETRY UNIT PART NO. 242-3412-XX0 Second Printing August 1997 Supersedes 001-3412-001 December 1996 Part No. 001-3412-002 8-97 Printed in U.S.A.
SYNTHESIZED UHF TELEMETRY UNIT PART NO. 242-3412-XYZ Copyright 1997 by the Johnson Data Telemetry Corporation. The Johnson Data Telemetry Corporation designs and manufactures radios and radio modems to serve a wide variety of data communication needs. The Johnson Data Telemetry Corporation produces equipment for the fixed data market including SCADA systems for utilities, petrochemical, waste and fresh water management markets and RF boards for OEM applications in the Radio Frequency Data Capture market.
TABLE OF CONTENTS 1 GENERAL INFORMATION 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 SCOPE OF MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EQUIPMENT DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS 4.3 4.4 4.5 RECEIVER CIRCUIT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 HELICAL FILTER (Z201), RF AMPLIFIER (Q201) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 MIXER (U211) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS 6 ALIGNMENT PROCEDURE AND PERFORMANCE TESTS 6.1 6.2 6.3 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 TEST EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 DL3412 TRANSCEIVER ONLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1 GENERAL INFORMATION 1.1 SCOPE OF MANUAL High Specification units are available to meet International requirements and bandwidths to meet U.S.A. refarming requirements. To learn more about the other JDT products, call 1-800-992-7774 or 1-612890-8155 to speak to a sales representative. This service manual contains alignment and service information for the Johnson Data Telemetry (JDT) DM-3412 UHF Synthesized Telemetry Unit.
GENERAL INFORMATION mat is asynchronous with either 8 or 9 data bits. The modem can operate in either standard DTE/DCE handshake protocol or in Data Activation mode which requires only receive and transmit data lines. The baud rates are user selectable from 300 to 9600 baud in a 25 kHz bandwidth or 300 to 4800 baud in a 12.5 kHz bandwidth. 1.2.3 DL-3412 WITH RNET™ MODEM The DL-3412 (Part No. 242-3412-xxx) can be ordered with the 9600 baud Modem (Part No.
GENERAL INFORMATION 1.5 PART NUMBER BREAKDOWN Customer Service Department - (507) 835-6911 Customer Service FAX Machine - (507) 835-6969 The following is a breakdown of the part number used to identify this transceiver: You may also contact the Customer Service Department by mail. Please include all information that may be helpful in solving your problem.
GENERAL INFORMATION 1.9 FACTORY RETURNS Repair service is normally available through local authorized Johnson Data Telemetry Radio Service Centers. If local service is not available, the equipment can be returned to the factory for repair. However, it is recommended that you contact the Field Service Department before returning equipment. A service representative may be able to suggest a solution to the problem so that return of the equipment would not be necessary.
GENERAL INFORMATION 3412 UHF SYNTHESIZED TELEMETRY UNIT SPECIFICATIONS The following are general specifications intended for use in testing and servicing this transceiver. For current advertised specifications, refer to the specification sheet available from the Marketing Department. Specifications are subject to change without notice.
GENERAL INFORMATION TRANSMITTER Frequency Stability Bandwidth Maximum System Deviation Modulation Input Bias Input Impedance Distortion Capability Flatness RF Power Output Deviation Symmetry RF Output Impedance Duty Cycle Adjacent Channel Power Intermodulation Attenuation Spurious and Harmonic FM FM Hum and Noise August 1997 Part No. 001-3412-002 ±1.5 PPM (-30°C to +60°C (-22°C to +140°F) 16 MHz without tuning 20 MHz without tuning 380-403 and 450-470 MHz bands 5 kHz (25 kHz), 2.5 kHz (12.
SECTION 2 INSTALLATION 2.1 PRE-INSTALLATION CHECKS ±3 dB that produces ±5 kHz deviation with a 1 kHz tone. When this input is used, a temperature compensated 2.5V DC bias is required as variations in voltage cause the frequency to change. The transceiver regulatory compliance must be applied for with the customer supplied modulation limiting/filter circuit and chassis. Field alignment should not be required before the 3412 is installed.
INSTALLATION nostics. The diagnostic capabilities are in Section 1.2.2 1 2 3 5 7 9 4 6 8 10 11 13 12 GND 14 +13.3V DC TX EN RX EN RF EN MOD IN SYNTH LOCK SYNTH EN DATA CLOCK DIAG EN RSSI DEMOD DIAG Part No. 023-3472-007 Figure 2-1 DM3412 INTERFACE CABLE June 1997 Part No.
SECTION 3 PROGRAMMING has a 1-bit address. When the A0 word is loaded, the synthesizer frequency acquisition is initiated (see Figure 3-1). 3.1 INTRODUCTION DM3412 - The information in Section 3.2 describes synthesizer programming protocol. This information can be used as a basis for designing the synthesizer programming hardware and software required. Receive Bandwidth 380-512 MHz Transmit Bandwidth 380-512 MHz First IF 52.95 MHz Second IF 450.0 kHz First LO Injection 432.95-564.
PROGRAMMING 3.2.2 D-WORD CALCULATION (24-BITS) 3.2.3 C-WORD CALCULATION (24-BITS) The D-Word programs the Main, Reference and Auxiliary dividers, and sets the modulus. The C-Word is not used in the DM-3412 synthesizer load. NR = 350 Ftcxo/50 kHz=350 where Ftcxo=17.5 MHz SM = 00 Reference select for main phase detector EM = 1 Main divider enable flag SA = 00 Reference select for aux. phase detector EA = 0 Aux.
PROGRAMMING 3.2.4 B-WORD CALCULATION (24-BITS) Lowest Tx Frequency Highest Tx Frequency Lowest Rx Frequency Highest Rx Frequency The B-Word programs the Fractional-N charge pump current setting factor, the Binary acceleration factors (CL/CK) and prescaler modulus. The value of CN should be interpolated for frequencies between the band edges. The recommended value range of CN provides the fractional spurious rejection required to meet adjacent channel specifications.
PROGRAMMING 3.2.5 A0-WORD CALCULATION (24-BITS) below the comparison frequency (FCM), i.e. frequencies that are not divisible by FCM. When the D-word is programmed with FMOD = 8, and NR = 350 as described in Section 3.2.2, the fractional increment is: 50 kHz ÷ 8 = 6.25 kHz. FCM = Ftcxo ÷ NR = 17.5 MHz ÷ 350 = 50 kHz The synthesizer resolution (min. step) is 6.25 kHz. The A0-Word is sent last (see Figure 3-4).
PROGRAMMING D23 D0 PR="01" NM2 A0 0 NF NM1 NM3 B 1 0 0 0 C 1 0 0 1 D 1 0 1 0 E 1 1 1 1 0 0 0 0 CN CK NA PA NR 0 NM2 CL PR 0 SM EM SA EA 0 0 T1 T0 PR="10" F L M O O N D G 0 1 24 ADDRESS BITS TEST BITS NOTE: C-Word and E-Word are not used in Synthesizer load. NOTE: Bit 24 is shifted out first. Figure 3-5 SERIAL INPUT WORD FORMAT 3-5 June 1997 Part No.
PROGRAMMING 3.3 RECEIVE TO TRANSMIT SEQUENCE 3.4 TRANSMIT TO RECEIVE SEQUENCE 1. Synthesizer is loaded (24-bit D, B and A0). Refer to Figure 3-6. 1. TX_EN is turned OFF. This signal is shaped. Refer to Figure 3-7. 2. The state of the RX_EN line does not have to be changed until the last bit is sent. However, receive will cease as soon as it is changed. 2. The synthesizer load process could begin slightly before, but when the last bit is strobed in the synthesizer it will become unlocked. 3.
PROGRAMMING IMPORTANT Clock (max.) Diag Enable (min) XX If the receiver is to be operated at 510-512 MHz (-810), a spurious condition may occur to degrade the receiver sensitivity 2 to 3 dB. If this degradation is unacceptable, the synthesizer can be reprogrammed to a comparison frequency (FCM) of 31.25 kHz (so that a multiple of this would not be 52.95 MHz) and a modulus (FMOD) of 5 with a reference divide (NR) of 560. These parameters place the spurious at harmonics of 31.
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SECTION 4 CIRCUIT DESCRIPTION 4.1 GENERAL 4.1.3 RECEIVER The receiver is a double-conversion type with intermediate frequencies of 52.95 MHz / 450 kHz. Two helical bandpass filters reject the image, half IF, injection, and other unwanted frequencies. A fourpole crystal filter and an 8-pole ceramic filter enhance receiver selectivity 4.1.1 INTRODUCTION The main subassemblies of this transceiver are the RF board, VCO board, TCXO and Loader board. A block diagram of the transceiver is located in Figure 4-1.
CIRCUIT DESCRIPTION RF BPF RF AMP RF BPF Z201 Q201/Q202 Z202 RECEIVER MIXER U221 52.
CIRCUIT DESCRIPTION CLOCK DATA STROBE SERIAL INPUT + PROGRAM LATCHES PR Vss NM1 NM2 NM3 FB FB EM 2 RF IN RF IN 2 64/65/72 PRESCALER VDD 12 FMOD 8 NF FRACTIONAL ACCUMULATOR MAIN DIVIDERS PRESCALER MODULUS CONTROL RF RN CN 8 TEST EM SM 2 NR EM+EA NORMAL OUTPUT CHARGE PUMP MAIN PHASE DETECTOR CL 2 CK 4 REFERENCE DIVIDER SA 2 PA EA PHP SPEED-UP OUTPUT CHARGE PUMP MAIN REFERENCE SELECT 12 REF IN AUX IN 3 NA EA +2 +2 INTEGRAL OUTPUT CHARGE PUMP +2 RA SECONDARY REFERENCE
CIRCUIT DESCRIPTION The -2.0V applied to the VCO is derived from the 17.5 MHz TCXO frequency that is amplified by Q701, rectified by CR701 and filtered by C706, C707, C708 and C709 on the RF board. 4.2.3 CASCODE AMPLIFIERS/VCO (Q851/Q852) Q851/Q852 form a cascode amplifier to provide reverse isolation for the VCO. Q851 is configured as a common emitter and Q852 as a common base.
CIRCUIT DESCRIPTION When J201, pin 4 is high in receive (+3-16V), Q173 is turned on and the collector voltage goes low. A low on the base of Q172 turns the transistor on and the regulated +9.6V on the emitter is on the collector for the receive circuitry. Q171 applies a low on the base of Q841, the transistor is off and the collector is high. With a high on the base of Q842 and a low on the emitter, this reverse biases CR850 for a high impedance.
CIRCUIT DESCRIPTION 4.3.2 MIXER (U211) C404 decouple RF from the amplifier. L401, L402, C405, C406 and C407 pass the third harmonic (52.5 MHz) to the input of U241, pin 4. The output of the amplifier is coupled to U241, pin 4 by C408, C409 and L403 form a 450 kHz notch. First mixer U211 mixes the receive frequency with the first injection frequency to produce the 52.95 MHz first IF. Since high-side injection is used, the injection frequency is 52.95 MHz above the receive frequency.
CIRCUIT DESCRIPTION Limiter-Amplifier and isolation. Q501 provides amplification and additional isolation between the VCO and transmitter. Biasing for this stage is provided by R504 and R505, and decoupling of RF signals is provided by C503 . Impedance matching to the predriver is provided by L511 and C512. The output of Z252 is applied to a limiter-amplifier circuit in U241. This circuit amplifies the 450 kHz signal and any noise present; then limits this signal to a specific value.
CIRCUIT DESCRIPTION Q531 decreases the input voltage to U521 to lower the power. The control voltage is isolated from RF by ferrite bead EP532 and C531 decouples RF. during key-up. The conditioning provides a stable 5.5V output by balancing the 5.5V reference with the 5.5V regulated supply. The forward/reverse power voltages from U581A/B are also applied to U913 for Diagnostic outputs on J201, pin 14. The output on U111B, pin 7 is applied to the noninverting input of comparator U111D, pin 12.
SECTION 5 SERVICING 5.1 GENERAL 5.2 SYNTHESIZER SERVICING 5.1.1 PERIODIC CHECKS 5.2.1 INTRODUCTION This transceiver should be put on a regular maintenance schedule and an accurate performance record maintained. Important checks are receiver sensitivity and transmitter frequency, modulation, and power output. A procedure for these and other tests is located in Section 6. It is recommended that transceiver performance be checked annually even though periodic checks are not required by the FCC.
SERVICING Control Voltage 5.3.2 MIXER/DETECTOR (U241) Check the DC voltage at TP831 with a channel near the center of the band. If the VCO is locked on frequency, this should be a steady DC voltage near 3V. If it is not locked on frequency, it should be near the lower or upper end of its range (0V or 5.5V). Data Output Using a .01 µF coupling capacitor, inject a 52.95 MHz, 1 mV signal, modulated with 1 kHz at ± 3 kHz deviation at U241, pin 1.
SERVICING 5.3.3 SECOND LO (Q401) 5.4 TRANSMITTER SERVICING Verify the Second LO signal is present at U241, pin 4. The Second LO should be at 52.50 MHz and not less than 500 mV P-P. 5.4.1 SUPPLY VOLTAGES AND CURRENT Measure the supply voltages on the following pins of interface connector J201: 5.3.4 AUDIO BUFFER AMP (U261) Pin 2 - 13.3V DC nominal Pin 3 - 3-16V DC Pin 4 - 0.0V DC (while transmitting) Pin 5 - 3-16V DC Pin 6 - 2.5V DC ±1%/1.
SERVICING 5.4.4 FINAL AMPLIFIER (U521) START 1. Check the voltages on U521. MEASURE CURRENT AND VOLTAGES Pin 2 = 5.5V DC (varies with power setting) Pin 3 = 5.0V DC Pin 4 = 12.7V DC OK CHECK FUSES AND NO WIRE HARNESS CONNECTIONS ? YES MEASURE RF OUTPUT POWER Power output at C551 should be 7.5-8.0W (+38.7 to +39 dBm). 5 WATTS ? YES CHECK DEVIATION (SECTION 5.4.6) NO 5.4.5 ANTENNA SWITCH (CR561/CR562) REFER TO SECTION 5.4.2 OK CHECK PRE-DRIVER NO CHECK AUDIO CIRCUITS ? YES 1.
SECTION 6 ALIGNMENT PROCEDURE AND PERFORMANCE TESTS 6.1 GENERAL 5. Connect a DC voltmeter at the junction of R833/ C836 (VCO pin 16) to measure the VCO control line voltage for a meter reading of ≥ 0.75 and ≤ 5.00V DC (see Figure 6-4). Receiver or transmitter alignment may be necessary if repairs are made that could affect tuning. Alignment points diagrams are located in Figure 6-4 or component layouts are located in Section 8. NOTE: These voltages will be approximately 0.
ALIGNMENT PROCEDURE AND PERFORMANCE TESTS 6.3.3 MODULATION ALIGNMENT 1. Check that R571 is installed and R572 is removed on Revision 2 or earlier boards (see Figure 6-4). 1. Connect a DC voltmeter to the junction of R822/ R823 and adjust R823 for 2.10V DC ±0.05V DC (see Figure 6-4). 2. Make sure input supply voltage equals +13.3V. 3. Arrow to the "mid" channel. 2. Inject a 100 Hz square-wave tone at approximately 0.35V P-P, biased at +2.5V DC on J201, pin 6. 4.
ALIGNMENT PROCEDURE AND PERFORMANCE TESTS 4. Arrow to the "mid" channel the DAC value should be "125" (the voltage at the wiper of R827 should be set to 1.5V DC). If the square wave is rolled off on the edges, adjust R825 up in value to achieve as flat a square wave as possible. If the square wave is peaked on the edges, adjust R825 down in value to achieve as flat a square wave as possible. 10.Input a 100 Hz sine wave. With the modulation analyzer 15 kHz low pass filter selected.
ALIGNMENT PROCEDURE AND PERFORMANCE TESTS NOTE: Maintain these deviation levels throughout the test when measuring AC levels, SINAD and % distortion. 6.3.6 RECEIVER ALIGNMENT CAUTION Do not key the transmitter with the generator connected because severe generator damage may result. 3. Adjust L253 for +2.5V DC (±0.05V DC) at the receive audio output, J201, pin 13. 1. Connect the test setup shown in Figure 6-3. Adjust the power supply for +13.3V DC. 4.
TP831 R825 J501 R827 ALIGNMENT PROCEDURE AND PERFORMANCE TESTS A801 VCO L222 L221 L253 14 13 R571 R572 L211 R535 C221 J201 6 1 R823 Y801 Figure 6-4 ALIGNMENT POINTS DIAGRAM 6-5 June 1997 Part No.
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SECTION 7 PARTS LIST SYMBOL NUMBER PART NUMBER DESCRIPTION SYMBOL NUMBER 3412 TRANSCEIVER PART NO.
PARTS LIST SYMBOL NUMBER C 262 C 264 C 265 C 266 C 267 C 268 C 271 C 272 C 273 C 275 C 276 C 277 C 279 C 301 C 302 C 303 C 304 C 305 C 306 C 307 C 401 C 402 C 403 C 404 C 405 C 406 C 407 C 408 C 409 C 501 C 502 C 503 C 504 C 505 C 506 C 507 C 508 C 511 C 512 C 513 C 514 C 515 C 516 C 517 DESCRIPTION .1 µF ±5% X7R 1206 47 µF 10V SMD tantalum .01 µF ±10% X7R 0603 68 pF ±5% NPO 0603 .01 µF ±10% X7R 0603 .01 µF ±10% X7R 0603 .01 µF ±10% X7R 0603 .01 µF ±10% X7R 0603 .01 µF ±10% X7R 0603 .
PARTS LIST SYMBOL NUMBER C 556 C 561 C 562 C 563 C 564 C 581 C 591 C 592 C 593 C 594 C 701 C 702 C 703 C 704 C 706 C 707 C 708 C 709 C 801 C 802 C 803 C 804 C 805 C 806 C 811 C 812 C 813 C 815 C 816 C 821 C 822 C 825 C 831 C 832 C 833 C 836 C 841 C 842 DESCRIPTION 16 pF ±5% NPO 0805 (380-403 MHz) 15 pF ±5% NPO 0805 (403-435 MHz) 13 pF ±5% NPO 0805 (435-470 MHz) 10 pF ±5% NPO 0805 (464-512 MHz) 1 pF ±5% NPO 0805 68 pF ±5% NPO 0603 1.
PARTS LIST SYMBOL NUMBER L 302 DESCRIPTION PART NUMBER L 401 L 402 L 403 L 501 L 511 L 512 L 513 L 551 L 552 L 553 L 554 L 555 L 561 L 811 18 nH inductor LL2012 F15N (403-470 MHz) 15 nH inductor LL2012 F15N (464-512 MHz) .1 µH SMD inductor .1 µH SMD inductor 1 µH SMD inductor 1 µH SMD inductor 18 nH inductor LL2012 F18N 1 µH SMD inductor 18 nH inductor LL2012 F15N 18.5 nH 5-turn SMD air core 35.5 nH 9-turn SMD air core 35.5 nH 9-turn SMD air core 18.
PARTS LIST SYMBOL NUMBER R 235 R 255 R 261 R 262 R 263 R 264 R 265 R 266 R 271 R 272 R 275 R 301 R 302 R 303 R 304 R 305 R 306 R 401 R 402 R 403 R 404 R 501 R 502 R 503 R 504 R 505 R 511 R 512 R 513 R 514 R 515 R 533 R 534 R 535 R 536 R 561 R 565 R 573 R 574 R 581 R 583 DESCRIPTION 680 ohm ±5% .063W 0603 39k ohm ±5% .063W 0603 100 ohm ±5% .063W 0603 12k ohm ±5% .063W 0603 (12.5 kHz Bandwidth) 27k ohm ±5% .063W 0603 (25 kHz Bandwidth) 68k ohm ±5% .063W 0603 43k ohm ±5% .063W 0603 (12.
PARTS LIST SYMBOL NUMBER U 111 U 131 U 141 U 211 U 241 U 261 U 521 U 581 U 811 U 911 U 912 U 913 DESCRIPTION Quad op amp SO-14 331 Voltage regulator SO-6 Voltage regulator SO-6 Double balanced mixer LV FM IF SA676DK Single op amp SOT-23-5 5W RF power module Op amp SO-8 MC33172D Fractional-N synthesizer Quad 8-bit TLC5620ID 8-stage shift register SOIC 3 - 2-chnl analog mux/demux PART NUMBER 544-2020-017 544-2603-093 544-2603-093 544-0007-014 544-2002-037 544-2016-001 544-4001-064 544-2019-017 544-3954-
PARTS LIST SYMBOL NUMBER DESCRIPTION L 851 L 852 L 853 L 854 L 855 L 856 150 nH ±10% SMD 0805 150 nH ±10% SMD 0805 22 nH inductor LL2012 F18N 150 nH ±10% SMD 0805 56 nH inductor LL2012 F56N 22 nH ±10% SMD 0805 542-9003-158 542-9003-158 542-9003-227 542-9003-158 542-9003-567 542-9003-227 Q 850 Q 851 Q 852 Q 853 NPN transistor NE85619 NPN transistor NE85619 NPN transistor NE85619 NPN transistor NE85619 576-0003-651 576-0003-651 576-0003-651 576-0003-651 R 851 R 852 R 853 R 854 R 856 R 857 R 858 R 862
PARTS LIST SYMBOL NUMBER DESCRIPTION C 862 6.8 pF ±0.1% NPO 0603 C 863 100 pF ±0.1% NPO 0603 (403-419 MHz) 68 pF ±5% NPO 0603 (419-451/464-512 MHz) C 864 10 pF ±0.1% NPO 0603 C 865 100 pF ±0.1% NPO 0603 (403-419 MHz) 68 pF ±5% NPO 0603 (419451/464-512 MHz) C 866 100 pF ±0.1% NPO 0603 (403-419 MHz) 68 pF ±5% NPO 0603 (419-451/464-512 MHz) C 867 100 pF ±0.1% NPO 0603 (403-419 MHz) 68 pF ±5% NPO 0603 (419-451/464-512 MHz) C 868 2.4 pF ±0.1% NPO 0603 (403-419 MHz) 2.2 pF ±0.1% NPO 0603 (419-435 MHz) 1.
PARTS LIST SYMBOL NUMBER R 862 R 863 R 864 R 865 R 866 R 867 R 868 R 869 R 870 R 871 R 872 R 874 R 875 DESCRIPTION 10k ohm ±5% .063W 0603 10 ohm ±5% .063W 0603 10k ohm ±5% .063W 0603 10k ohm ±5% .063W 0603 470 ohm ±5% .063W 0603 12k ohm ±5% .063W 0603 390 ohm ±5% .063W 0603 270 ohm ±5% .063W 0603 18 ohm ±5% .063W 0603 3.9k ohm ±5% .063W 0603 1.8k ohm ±5% .063W 0603 680 ohm ±5% .063W 0603 270 ohm ±5% .
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SECTION 8 SCHEMATICS AND COMPONENT LAYOUTS TRANSISTOR AND DIODE BASING REFERENCE TABLE TRANSISTORS Part Number Basing Diagram Identification G C TOP VIEW TOP VIEW D 576-0003-634 576-0003-636 576-0003-640 576-0003-651 576-0003-658 576-0006-019 576-0006-027 576-0013-032 576-0013-046 576-0013-700 576-0013-701 2 2 5 2 2 1 4 2 2 2 2 3 3 3 3 3 3 E 1 24 1A 6T P1F 6D 8C BR ZR C C TOP VIEW TOP VIEW 2 A B NC GND C E 4 3 OUT TOP VIEW DIODES 523-1504-001 523-1504-002 523-1504-016 523-1504-020
SCHEMATICS AND COMPONENT LAYOUTS LOADER BOARD 023-3240-330 J104 PROGRAMMING CONNECTOR VCO RF BOARD SLEEP/WAKE 2 RX DATA 3 TX DATA 4 NC 5 GROUND 6 PRG0 7 NC 8 PRG1 9 PRG2 10 GROUND 11 J201 W0854 +4.6V DC 1 +4.6V DC GROUND J201 GROUND 1 GROUND +13.3V DC SWITCHED 2 +13.
SCHEMATICS AND COMPONENT LAYOUTS Figure 8-2 VCO COMPONENT LAYOUT (COMPONENT SIDE VIEW) 8-3 June 1997 Part No.
SCHEMATICS AND COMPONENT LAYOUTS J501 3 5 4 R827 1 R825 2 TP831 A801 VCO C141 + C268 C277 R255 C111 + R913 EP111 C112 C105 Q101 Q121 R115 R111 U111 R117 C116 R534 C114 C103 Q101 R102 C106 C104 R912 C911 C122 C121 C123 R116 R114 R113 C113 R112 + R124 C115 C102 C101 + C131 C133 L221 C581 C535 C125 Q124 + U913 R126 R521 C123 C124 Q531 U912 R533 9 10 11 12 13 14 C536 R536 C266 L253 8 U911 R263 C261 R535 L222 U261 7 R916 R265 R264 6 R917 R914 C262 Q
R565 + R705 C708 C704 C707 C706 R203 R202 R201 C210 C203 C204 C207 C206 L201 CR231 R204 L202 R205 Q202 C208 C305 C309 R305 L302 L561 R561 C564 C213 C584 C585 C593 C591 CR591 C595 R591 C522 C594 R594 R592 C592 R586 C505 C506 C507 C508 + EP533 EP531 C533 R583 U581 C582 R584 C532 C521 EP534 C518 C523 C524 R122 R121 R513 C502 C531 C514 CR592 R581 EP501 C583 R574 R593 C212 R573 C582 EP532 L513 C513 C517 L512 C516 C511 L511 C504 R512 C515 R514
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SCHEMATICS AND COMPONENT LAYOUTS Figure 8-5 SCHEMATIC (1 OF 2) REVISED 8-7 June 1997 Part No.
SCHEMATICS AND COMPONENT LAYOUTS Figure 8-6 SCHEMATIC (2 OF 2) REVISED June 1997 Part No.
