Instruction Manual Model 6040 Universal Pulse Generator 2955 Kerner Blvd. San Rafael, CA 94901 Ph: 415-453-9955 Fx: 415-453-9956 www.berkeleynucleonics.
WARRANTY Berkeley Nucleonics Corporation warrants all instruments, including component parts, to be free from defects in material and workmanship, under normal use and service for a period of one year. If repairs are required during the warranty period, contact the factory for component replacement or shipping instructions. Include serial number of the instrument. This warranty is void if the unit is repaired or altered by others than those authorized by Berkeley Nucleonics Corporation.
CONTENTS SECTION 1 Page 9 SPECIFICATIONS Model 6040 Mainframe Characteristics Status Byte Summaries SECTION 2 OPERATING INFORMATION 9 13 15 General Power Up LCD Power On Sequence 15 15 15 Module Installation Warm Up Requirements Safety Precautions Electrical Cables, Attenuators and Oscilloscopes 16 16 16 16 Troubleshooting LCD Contrast Cold Boot Quick Test 17 17 17 17 GPIB and RS-232 Problems 18 Front Panel Description Power Switch LCD Display LED Annunciator Keypads 19 19 19 19 19 Control K
CONTENTS Menus and Parameter Selection Modifying Parameters Numeric Data Entry Parameter Scanning Saving the Panel Setting in Memory Control Key Descriptions Menu Keys Memory Keys Scan Keys Function Keys Miscellaneous Keys Numeric Key Descriptions Remote Programming Initial Bus Parameter Selection Command Set Status Commands Panel Control Commands Display Commands Supplemental Control Commands SECTION 3 22 23 24 25 25 26 28 31 32 32 32 33 34 35 35 35 37 39 40 THEORY OF OPERATION 41 General Pulse Generat
CONTENTS SECTION 4 SECTION 5 MAINTENANCE AND CALIBRATION 56 Calibration General Equipment Required Procedure Power Supply LCD Contrast Rep-Rate Check External Trigger Circuit Pulse Out Amplifier Delay Oscillator 1 ns Delay Width Oscillator 1 ns Width 10 ns Width 56 56 56 56 56 56 57 57 57 57 58 58 58 58 PARTS LIST AND SCHEMATICS 59 Parts List Timing Board, 6040-2 Microprocessor Board, 6040-3 Power Supply Board, 6040-1 Annunciator Board, 6040-6 Miscellaneous Front Panel Assembly Miscellaneous Top Ass
CONTENTS ILLUSTRATIONS Figure No. Frontispiece 1-1 3-1 3-2 3-3 Page Model 6040 Universal Pulse Generator 6040 Trigger and Output Pulse Timing 6040 Timing Circuits Microprocessor Block Diagram Simplified Interconnection Diagram 8 45 46 48 TABLES Table No.
SAFETY PRECAUTIONS The following warnings, which appear both here and in the main body of the test, are to alert the user of potential safety hazards and to encourage safe operating practices. WARNING: To avoid possible electric shock, observe the following: Do not operate with the cover removed. Exposed ac power is present even with the power switch off. Be sure the ground conductor of the ac power cord connects the instrument to a solid earth ground.
UNIVERSAL PULSE GENERATOR MODEL 6040 The Model 6040 System consists of a crystal-controlled programmable pulse/digital delay generator mainframe and a family of optional plug-in modules. The 6040 itself generates TTL and ECL outputs at rates to 100 MHz with 1 ns or less rise times and a 1 nanosecond resolution for pulse width, delay and double pulse timing.
SECTION 1 SPECIFICATIONS MODEL 6040 MAINFRAME CHARACTERISTICS Timing Characteristics INTERNAL REP RATE Range: Resolution: Accuracy: DELAY Range: Resolution: Jitter (rms): Accuracy: WIDTH Range: Resolution: Jitter (rms): Accuracy: 0.01 Hz – 100 MHz 4 digits 0.01% 0 – 640 s. 1 ns or 5 digits, whichever is greater. 25 ps or 0.01% of Delay, whichever is greater. 0 to 9 ns. 1 ns; 10 ns to 640 s, 0.5 ns or 0.2% of Delay, whichever is greater. 3 ns – 640 s. 1 ns or 5 digits, whichever is greater. 25 ps or 0.
SPECIFICATIONS Input Characteristics TRIG IN Range: Input Impedance: Slope: Minimum Pulse Width: Minimum Signal Amplitude: Maximum Signal Amplitude: Threshold Range: Threshold Resolution: Trigger Jitter: MODULE DISABLE Disable: Enable: External trigger to initiate delay and width sequences. 0-100 MHz. 50 ohms. Selectable pos/neg. 3 ns. 100 mV. ± 7 V. ± 2.5 V. 10 mV. 20 ps rms (between TRIG IN and TRIG OUT). Allows the outputs on some modules to be remotely disabled. 4 V - 5 V.
SPECIFICATIONS TRIG OUT Denotes the start of a liming cycle. Amplitude: Transition Times: Pulse Width: Trigger Delay: MODES +2 V into 50 ohms. +4 V into 100 ohms. 3 ns. 3 ns. 20 ns typical (between TRIG IN and TRIG OUT). With a module installed, four main operating modes are available. The Mode selection is module dependent. PULSE Single Pulse: Conventional pulse generator with rate, delay and width controlled by the 6040 mainframe (see Figure 1-1).
SPECIFICATIONS Programming GPIB IEEE-488 Remote interface with all functions and parameters programmable and bus triggerable. Interface Functions: SH1, AH1, T6, TE0, L4, LE0, SR1, RL1, PP0, DC1, DT1, C0. RS-232 Remote interface with all functions and parameters programmable in full or half-duplex to 1200 baud and bus triggerable. LOCAL Pushbutton manual entry with panel LCD display. General DIMENSIONS 12.75" W x 5.25" H x 16" D (324 mm x 133 mm x 406 mm). Rack Mount: 19" W x 6.
SPECIFICATIONS RECALL Stored settings can be manually recalled or bus transferred to the mainframe. The setting in memory 0 is activated automatically upon power-up or reset. DIMENSIONS 3.75" W x 4.9 " H x 10" D (95 mm x 124 mm x 254 mm). WEIGHT 2 lbs net (0.9 kg): 7 lbs shipping (3.2 kg). General Status Byte Summaries Table 1-2.
SPECIFICATIONS Table 1-3. Error Status Byte Bit 7 6 5 4 3 2 1 0 Description Always zero Always zero Always zero Always zero Always zero Always zero Overrange Unrecognized command Module Status Byte The Module Status byte is module dependent. Refer to the module's instruction manual.
SECTION 2 OPERATING INFORMATION General POWER UP When power is first applied, the mainframe performs a test to determine if a module is installed. If a module is present, the limits for each module dependent parameter are transferred to the mainframe. The memory is checked for any errors and the parameters in memory 0 are loaded into the mainframe. If a module is not present, the parameters are set as indicated in Table 2-1. Table 1-4.
OPERATING INFORMATION Module Installation CAUTION: The module must be installed with mainframe power off. A module can be damaged or have its memory corrupted if inserted or removed from the mainframe with the power on. To install a module, turn the power off, slide the module in and tighten the mount screw knob. Warm Up Requirements The instrument should be allowed to warm up for 30 minutes before high precision measurements are made. Less critical tests can be performed immediately after turn-on.
OPERATING INFORMATION TROUBLESHOOTING To start, make sure that the line cord is plugged in all the way, and that the power-on key switch is in the ON position. Verify that the 115 V/230 V selection switch is properly set for your area. (If it is not, unplug the line cord and move the switch. Make sure the proper fuse in in place before plugging the cord back in.) With the line cord unplugged check the fuse. Make sure that it has not blown and that it is of the correct value for the line voltage being used.
OPERATING INFORMATION Press the TIMING key to display the Delay parameter ("Delay: 1.000 µs"). Move the cursor (using the { } key) to underline the 1 us decade. Now use the increment key { } to increase the Delay noting that the incidence of PULSE OUT moves in 1 µs steps. Repeat this with the Width parameter to change the duration of PULSE OUT. For quick testing of the module, repeal the above using the module output (an optical detector may be necessary).
OPERATING INFORMATION FRONT PANEL DESCRIPTION Power Switch The power switch, located in the lower left comer of the front panel, is keyed to prevent unauthorized use. The key can be removed only when the switch is turned to the off position. WARNING: To remove all ac power from the unit, the line cord must be unplugged. LCD Display The 6040 has a 20-character liquid crystal display (LCD). This displays all menus and data while the unit is being programmed from the front panel.
OPERATING INFORMATION Control Keypad Some of these keys are dependent on the presence of a plug-in module. For example, the LEVEL, STORE and RECALL keys function only with a module installed. The keys on the control keypad can be divided into the following subsets: menu key, memory keys, function keys, and scan keys, as well as the LOCAL and UNITS keys. The five menu keys. MODE, TRIG.
OPERATING INFORMATION Plug-In Module Receptacle The plug-in module receptacle is on the right side of the front panel, and accepts a single BNC 6040 plug-in module. The receptacle consists of an alignment guide, one 40-pin edge connector, and one ConheX coaxial connector. The 40-pin edge connector allows the 6040 mainframe to control and communicate with the module and also supplies the power to the module. The ConheX connector delivers the high speed pulse generator DRIVE signal to the module.
OPERATING INFORMATION RESET Button The RESET pushbutton initiates a power-on sequence. This resets the microprocessor board which in turn resets all hardware to its power-on settings. 115 V/ 230 V SELECTION SWITCH AND FUSE This switch allows operation on either 117 V ac (U.S.) or 234 V ac (European), as well as giving the fuse value for that line setting (1.5 A 3AG Slo-Blo for 117 V, 0.75 A 3AG Slo-Blo for 234 V). Below this switch are the line cord and fuse receptacles.
OPERATING INFORMATION The MODE and TRIG menu keys change the operating state of the 6040 directly. As the user sequences through the Mode menu, the state of the module's output is modified in accordance with the displayed Mode (Pulse, CW, etc.). Similarly, as the user sequences through the Trigger menu, the Trigger source for the pulse generator is set in accordance with the display (Internal, External, Single Cycle). The TIMING.
OPERATING INFORMATION Numeric Data Entry To enter an entirely new value, simply type in the desired value using the digit, decimal point, sign (where appropriate), and exponent keys, and then use either the EXEC (execute) or ENTER key to terminate the data entry. During the entry of values any errors can be corrected using the BK SPC (backspace) key. If the user decides midstream not to modify the parameter, pressing any menu key will nullify the data entry.
OPERATING INFORMATION Parameter Scanning The second method of altering a parameter is incremental. First display the desired parameter. Then choose the desired digit with the cursor using the left { } and right { } keys. Once the digit is selected, the increment { } and decrement { } keys allow the incremental modification of the existing value.
OPERATING INFORMATION Control Key Descriptions The following is a detailed description of each key on the control keypad. The discussion follows the grouping given in the Keypads section. The operation of each key is provided along with the dependence that key may have on the presence of a plug-in module. The display associated with each state of the key's operation is shown. In the diagrams for the display, the character x denotes a digit, and an asterisk (*) denotes an exponential unit (e.g.
OPERATING INFORMATION Table 1-6.
OPERATING INFORMATION Menu Keys {MODE} Sequences through the Mode menu and determines the type of output waveform produced. The selections are Pulse, Impulse. CW. and External Modulation. These are all module dependent. With no plug-in module. Mode defaults to Pulse. Pulse Mode provides flat topped pulses from the mainframe outputs (PULSE OUT and ECL OUT) and the module output jacks(s).
OPERATING INFORMATION {TRIG} Sequences through the trigger source and parameter menu. This is used in the Pulse and Impulse Modes. The selections are Internal Trigger, External Trigger (threshold and slope). External Drive, and Single Cycle. With no plug-in module, this is set to Single Cycle at power-on. Internal Trigger selects the internal rep-rate generator as the source of triggers for timing cycles and allows the user to set this rate.
OPERATING INFORMATION Delay controls the time interval from the TRIG OUT pulse to the mainframe (PULSE OUT and ECL OUT) or module outputs. In Single Pulse operation, Delay specifies the interval between the leading edge of the TRIG OUT signal and the leading edge of the output pulse or impulse (plus a fixed delay— see Figure 1-1).
OPERATING INFORMATION Front Panel Display (for an optical plug-in module with 3 digit resolution): < < < < {GPIB/RS-232} Lv Peak: Lv Bsln: Lv ExMd: Lv C.W.: x.xx *W x.xx *W x.xx *W x.xx *W > > > > Sequences through the GPIB/RS-232 enable and bus parameters. The selections are IEEE-488 Address, Baud Rate, Full/Half Duplex, and Remote Enable/Disable. These are not plug-in module dependent.
OPERATING INFORMATION {STORE} Allows the storage of the present machine state in one of ten (nonvolatile) memory locations in the module. This is operable only with a plug-in module installed. Front Panel Display: < Store Set (0-9): i > < Stored as Set i> {RECALL} Allows the retrieval of one of ten previously stored machine stales. This is operable only with a plug-in module installed.
OPERATING INFORMATION Note: This display appears only on the return to local from remote operation. Also, under GPIB operation, the bus command LLO can disable this key. Numeric Key Descriptions The following is a detailed description of each key on the numeric keypad. {0}...{9} The digits zero through nine. {.} The decimal point. {+/-, SGL/DBL} Changes the sign of a parameter entered using the digit keys (or of an exponent when pressed after the {10x} key).
OPERATING INFORMATION REMOTE PROGRAMMING Remote programming can be accomplished via either the RS-232 serial interface or the IEEE-488 GPIB. The command sets for the two buses are identical. Commands sent to the 6040 are case sensitive. Multiple commands, which must be separated by blanks or commas, maybe sent in a single transfer. The command string, including blanks, cannot exceed 255 characters. Strings, or single commands, must be terminated with a carriage return. Extra blank spaces are ignored.
OPERATING INFORMATION The transfer from mainframe memory into hardware of a new parameter can be suppressed by following the value with a semicolon. This can be used for loading an entire front panel state into mainframe memory and saving it in module memory, without disrupting the current hardware settings. As an example, the string TR IN 1E3 sets the rep rate generator to 1.000 kHz, whereas the string TR IN 1E3; does not affect the current setting of the repetition rate.
OPERATING INFORMATION ES Error Status. This returns a single byte that flags any errors that have occurred since the previous ES command. All bits are set to zero following this instruction. The bit definitions are as follows. Error Status Byte: Bit 7 6 5 4 3 2 1 0 IS Description Always zero Always zero Always zero Always zero Always zero Always zero Overrange Unrecognized command Bits 2-7: These bits are always zero and are reserved for future use.
OPERATING INFORMATION Bit 1: This bit is set if the PLL for the internal rep rate generator is unlocked. Bit 0: This bit is set if a timing cycle is in progress. PS Module Status. This returns the module status byte, which is module dependent. For definitions, refer to the module's manual. Panel Control Comands (PCCs) In the Front Panel Programming description, there are a group of keys denoted as menu keys.
OPERATING INFORMATION TR PCC {x} Trigger Control, where the secondary PCC is one of the following: ED {v} EP EN ET {v} IN {f} SC External Drive (threshold set for v volts) External Trigger Slope, positive External Trigger Slope, negative External Trigger {threshold set for v volts} Internal Trigger {rep rate set to f Hertz} Single Cycle If the value {x} is omitted, the current value is returned. If the string TR IN 1E3 were sent, the internal rep-rate generator would be set for a frequency of 1.000 kHz.
OPERATING INFORMATION There are no secondary PCCs used with the mention' commands. The formal is simple, the memory PCC followed by a single integer. RE i Recall the panel settings from the "ith" memory, where i is an integer between and including 0 and 9. The string RE 2 would recall the panel settings in memory 2. ST i Store the present panel settings in the "ith" memory, where i is an integer, between and including 0 and 9. The string ST 2 would store the instrument setting in memory 2.
OPERATING INFORMATION Supplemental Control Commands These commands provide additional methods for controlling the instrument. correspond to the keys on the 6040 front panel. They do not directly CL Clear Instrument. This command recalls the settings in module memory zero if a module is installed (equivalent to RE O). With no module installed, the mainframe is set for Single Cycle triggering (and no other parameters are changed).
SECTION 3 THEORY OF OPERATION General PULSE GENERATOR Figure 3-1 shows a simplified block diagram of the timing circuits. There are four main functional groupings: Rep-Rate Generator. External Trigger Circuit, Delay Circuit and Width Circuit. A high speed multiplexer selects either the output of the External Trigger Circuit or one of frequencies available from the Rep Rate Generator.
THEORY OF OPERATION When power is first applied the software determines if a plug-in module is present and configures the front panel user interface as necessary. This includes enabling or disabling the selection of certain parameters. Modes, and Timing States, and the limiting of parameters to boundaries as specified by the module. The microprocessor has 64K bytes of code memory, and a separate 64 K bytes of data memory. Code is accessed when the CODE SELECT line (PSEN) is asserted.
THEORY OF OPERATION The external trigger circuit consists of Z4, Z7, Z13, Z22 and Q3, Z4 (a DAC) is supplied data from the microprocessor board and with the aid of Z7 sets the input trigger level. Q3 when activated inverts the level polarity. Z13 is a high speed comparator and is used as the input sensing device. Three sections of Z22 are used to select the slope of the incoming signal. The fourth section of Z22 is used to detect the presence of a successful input trigger.
THEORY OF OPERATION At the start of the width timing cycle Z6-15 transmits a rising edge to the clock input of Z28 via DL2. This initiates the width output. The electrical length of DL2 is equivalent to the sum of the propagation time through Z19, Z20, Z21 and Z29 when the data set in the 1 ns decade is zero. At the end of the width timing cycle. Z26 transmits this edge through the 1 ns circuits (Z29 and Z20) the multiplexer (Z21) and the pulse shaper (Z29-14) to Z28-12 to end the width cycle.
THEORY OF OPERATION Figure 3-1.
THEORY OF OPERATION Figure 3-2.
THEORY OF OPERATION Memory and I/O Decoding (Schematic 6040-33, Sheet 2) Program Memory – ROM: Z.17, the EPROM, encompasses the full 64K code space. During a program code fetch instruction, PSEN* will cause the internal output buffer of the EPROM to be placed on the data bus. The internal output buffer is enabled when OE*, Z17-22, goes low (at the same time Z14 will momentarily point inward, permitting the data to be transferred into the microprocessor).
THEORY OF OPERATION Figure 3-3.
THEORY OF OPERATION Software normally sets port A to all zeroes. During the primary 50 ms operating system timer tick interrupt, the lower half of port C is tested to see if any bits are low. A bit will be low if any key is pressed because the 4.7 k row resistor is pulled low by a connection through the keypad switch. Once a key is pressed, software selectively scans through the columns one by one testing until the unique combination of a row and column is identified.
THEORY OF OPERATION The presettable counters, Z16-A and Z16-B, are enabled by the signals, DCNT24 and DCNT220, respectively. These come from port C of the PPI Z22. They are set by the microprocessor according to the Delay setting. The LDCLK signal is used when the counters are loaded with a new value. This comes from port C of the PPI, Z22. The DHLDOFF signal is used to prevent the ECL delay circuitry from initiating a new delay cycle during the reloading of Z16 at the end of a delay cycle.
THEORY OF OPERATION GPIB Interface (Schematic 6040-33, Sheet 8) Z35's CS7 (chip select 7) enters Z4 on pin 3 and in conjunction with AO-A3 select internal registers on the TMS9914 bus controller. The RD* must be inverted to accommodate the unusual positive-true DBIN (data bus in) signal. Z6 is used to divide the 10 MHz logic board oscillator which is output to Z4's clock input. Z1 and Z2 are standard 75161 and 75160 interface driver chips normally used with the 9914.
THEORY OF OPERATION Table 1-8. J8, Microprocessor to Module Interface Signals Signal(s) QAD0-QAD7 QA8-QA12 QRD QWR QALE PLUGIN RESET MOD DIS +5 -5.2 V +12 V -12 v THE GND Pin Number 8-1 16-12 11 10 9 18 17 19 26, 28 34, 36 37, 39 38, 40 27 35, 29-33 20-25 Description 8 multiplexed data/address lines 5 address lines Module read Module write Address Latch Enable (demux QAD0-QAD07) Enables Module interface circuits System reset Disables Module +5 V supply -5.
THEORY OF OPERATION Table 1-9.
THEORY OF OPERATION Table 1-10.
THEORY OF OPERATION Power Supply Board (Schematic 6040-34) There are four regulated voltages generated by the power supply: ±12 V. +5.0 V and -5.2 V. In addition there are three unregulated dc voltages: ±18 V and +3 V. These last three are labeled + UNREG. UNREG and TEH (used for a thermoelectric heater-cooler). The operation of the ±12 and +5 V supplies is identical. These are straightforward 1C regulators with internal references.
SECTION 4 MAINTENANCE AND CALIBRATION CALIBRATION General It is recommended that calibration of the 6040 mainframe be verified every 12 months. The instrument should be allowed to warm up for 30 minutes before beginning the calibration procedure. Equipment Required • HP Model 5370 Time Interval Counter (referred to in the text as TIC) or equivalent. • Tektronix Model 485 Oscilloscope (1 ns rise time) or equivalent. • Low capacity, high bandwidth probe (Tektronix Model 6160A).
MAINTENANCE AND CALIBRATION Rep Rate Check Remove any plug-in module. Connect the TRIG OUT to channel B of the Time Interval Counter (TIC). Select the Internal Trigger parameter with the {TRIG} key. Set the rep rate for 5.000 MHz. Now set the rep rate for 4.999 MHz and check that the frequency is between 4.9990 and 4.9992 MHz. External Trigger Circuit The external trigger circuit requires calibration of the DAC (Z4) and its associated amplifier (Z7). Refer to Schematic 6040-32.
MAINTENANCE AND CALIBRATION 1 ns Delay Connect the TIC as above. Set the 6040, with the front panel controls, for 30 ns width and 100 ns delay. Press the Set Reference button on the TIC. Cycle through 100 ns plus 2, 4. 6 and 8 ns delay and adjust R6 for best compromise of delays. Next cycle through 100 ns plus 2 versus 3 ns, 100 ns plus 4 versus 5 ns, and 100 ns plus 6 versus 7 ns and adjust C1 for the best 1 ns change compromise.
SECTION 5 PARTS LIST Abbreviations CER COMP DIP ELEC FAC SEL K M MF MIC MONO PF SIP TAN UH UF V VAR W WW Ceramic COMPOSITION Dual Inline Package Eelectrolytic Value Set at Factory Kilohm Megohm Metal Film Mica Monolythic Ceramic Picofarad Single Inline Package TANTALUM Microhenry Microfarad Working Volts Variable Watts Wirewound ------------------------- NOTE -------------------------The number in the second column is the BERKELEY NUCLEONICS re-order number ---------------------------------------------
PARTS LIST C20 110-033 0.1 µF 20% 50 V CER MONO C21 112-018 8 PF 5% 500 V MIC C22 112-031 12 PF 5% 500 V MIC C23 110-033 0.1 µF 20% 50 V CER MONO C47 NOT USED C48 NOT USED C49 NOT USED C50-C87 110-033 0.1 µF 20 % 50 V CER MONO C88 C89 C90 C91 C92 122-014 122-014 122-015 110-033 110-033 33 µF 10% 6 V TAN 33 µF 10% 6 V TAN 33 µF 10% 25 V TAN 33 µF 10% 25 V TAN 0.1 µF 20 % 50 V CER MONO C93 C94 C95 C96 C97 110-033 112-016 112-016 112-019 110-033 0.
PARTS LIST Q4 Q5 430-055 2N5836 430-055 2N5836 R35 R36 213-512 5.
PARTS LIST R127 R128 R129 213-271 270 OHM 5% ¼ W COMP 213-391 390 OHM 5% ¼ W COMP 213-391 390 OHM 5% ¼ W COMP R130 R131 R132 R133 R134 213-510 213-510 213-221 213-221 213-221 R135 R136 213-102 1K 5% ¼ W COMP 213-102 1K 5% ¼ W COMP 1K 5% ¼ W COMP 1K 5% ¼ W COMP 1K 5% ¼ W COMP 120 OHM 5% ¼ W COMP 15 OHM 5% ¼ W COMP R184 R185 R186 R187 R188 213-681 213-131 212-680 212-680 213-471 680 OHM 5% ¼ W COMP 130 OHM 5% ¼ W COMP 68 OHM 5% ½ W COMP 68 OHM 5% ½ W COMP 470 OHM 5% ¼ W COMP 213-122 213-561 213-101
PARTS LIST AND SCHEMATICS R171 221-001 49.9 OHM 1% ½ W MF R172 R173 R174 R175 R176 221-001 213-270 213-101 213-270 213-100 49.9 OHM 1% ½ W FM 27 OHM 5% ¼ W COMP 100 OHM 5% ¼ W COMP 27 OHM 5% ¼ W COMP 10 OHM 5% ¼ W COMP R177 R178 R179 R180 R181 213-101 222-005 222-005 213-681 213-131 100 OHM 5% ¼ W COMP 61.9 OHM 1% ¼ W MF 61.
PARTS LIST AND SCHEMATICS C14 C15 110-033 0.1 µF 20% 50 V CER 110-033 0.1 µF 20% 50 V CER C16 C17 C18 C19 C20 110-033 110-033 110-033 110-033 110-033 0.1 µF 20% 50 V CER 0.1 µF 20% 50 V CER 0.1 µF 20% 50 V CER 0.1 µF 20% 50 V CER 0.1 µF 20% 50 V CER C21 C22 C23 C24 C25 110-033 110-033 110-033 110-033 110-033 0.1 µF 20% 50 V CER 0.1 µF 20% 50 V CER 0.1 µF 20% 50 V CER 0.1 µF 20% 50 V CER 0.1 µF 20% 50 V CER C26 C27 C28 C29 C30 C31 110-033 110-033 110-033 110-033 110-033 110-033 0.
PARTS LIST AND SCHEMATICS Z34 Z35 Z36 Z37 440-152 440-203 440-181 440-160 74HC10 74HC138 74HC04 74HC00 ------------------------------------------------- R9 R10 213-511 510 OHM 5% ¼ W COMP 225-019 0.15 OHM 5% 2 W MF R11 R12 R13 R14 R15 222-042 222-050 222-039 222-047 222-011 2K 1% ¼ W MF 8.66K 1% ¼ W MF 1K 1% ¼ W MF 6.19K 1% W MF 249 OHM 1% ¼ W MF R16 R17 R18 R19 R20 222-042 222-050 213-103 213-511 225-020 2K 1% ¼ W MF 11.6K 1% ¼ W MF 10K 5% ¼ W COMP 510 OHM 5% ¼ W COMP 0.
