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Troubleshooting

2-78

Test 404.1 – Absolute value (x1 gain); -full-scale DAC

output

Pass/Fail

Cannot measure 4.21V ±0.4V at A/D IN.

DAC U531 is programmed to generate -4.21 VDC at . That signal is then
applied to ACF through R560 and U532 (DAC line pulled low). ACF is routed to AMP
IN via U526, Q516, and the AC input buffer.

AMP IN is tied to the inverting and non-inverting paths of the variable gain ampliÞer
(VGA). NETOUT (output of U519) is routed to the Zero-Crossing AmpliÞer which,
based on the polarity, generates the appropriate COMP- signal that is applied to com-
parator U507. The comparator selects the path that the AMP IN signal will follow
through the VGA by closing the appropriate analog switches of U509.

The negative (inverting) AMP IN path is through R530, U515, U509, Q501, and U516 to
pin 12 of the multiplexer (U511). The output (OUT) of the multiplexer is routed
through buffer U342 to ACV/A. The signal on ACV/A is switched through U320 (/AC
pulled low) to the A/D buffer (U322) which is conÞgured for x1 gain. M4.21V
at A/D IN.

DC_STB
Registers

R1_STB
Registers

R2_STB
Registers

U801

Q1:

0

Q2:

1

Q3:

1

Q4:

1

Q5:

1

Q6:

0

Q7:

0

Q8:

0

U307

Q1:

1

Q2:

1

Q3:

0

Q4:

1

Q5:

1

Q6:

1

Q7:

1

Q8:

1

U505

Q1:

1

Q2:

0

Q3:

1

Q4:

1

Q5:

0

Q6:

0

Q7:

1

Q8:

0

U800

Q1:

1

Q2:

1

Q3:

0

Q4:

0

Q5:

0

Q6:

0

Q7:

1

Q8:

1

U305

Q1:

1

Q2:

0

Q3:

1

Q4:

0

Q5:

0

Q6:

0

Q7:

1

Q8:

1

U500

Q1:

1

Q2:

1

Q3:

0

Q4:

1

Q5:

1

Q6:

1

Q7:

1

Q8:

1

U300

Q1:

1

Q2:

1

Q3:

1

Q4:

1

Q5:

1

Q6:

1

Q7:

1

Q8:

1

U302

Q1:

1

Q2:

1

Q3:

1

Q4:

1

Q5:

1

Q6:

1

Q7:

1

Q8:

0

U530

Q1:

1

Q2:

1

Q3:

1

Q4:

0

Q5:

1

Q6:

0

Q7:

0

Q8:

0

U303

Q1:

0

Q2:

1

Q3:

1

Q4:

1

Q5:

0

Q6:

1

Q7:

X

Q8:

X

U501

Q1:

0

Q2:

0

Q3:

1

Q4:

1

Q5:

1

Q6:

0

Q7:

X

Q8:

X

Note: Tables 2-10 through 2-12 provide functional descriptions of the register bits.

Type

Failure analysis

Description

Bit pattern

«
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89
90
91
92
93
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Содержание 2001

Страница 1: ...Model 2001 Multimeter Repair Manual Contains Servicing Information...

Страница 2: ...SIVE REMEDIES NEITHER KEITHLEY INSTRUMENTS INC NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT INDI RECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS A...

Страница 3: ...Model 2001 Multimeter Repair Manual 1993 Keithley Instruments Inc Test Instrumentation Group All rights reserved Cleveland Ohio U S A Second Printing February 1996 Document Number 2001 902 01 Rev B...

Страница 4: ...e manual Addenda are numbered sequentially When a new Revision is created all Addenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual Each new...

Страница 5: ...install ing or removing jumpers Do not touch any object that could provide a current path to the common side of the circuit under test or power line earth ground Always make measurements with dry han...

Страница 6: ...2 2 2 4 Front panel tests 2 2 2 4 1 KEYS Test 2 2 2 4 2 DISPLAY PATTERNS Test 2 3 2 5 Built in test 2 3 2 5 1AUTOMATIC Testing2 6 2 5 2 MANUAL Testing 2 6 2 6 Diagnostics 2 7 2 7 R1_STB and R2_STB sh...

Страница 7: ...PC boards removal 3 3 3 5 1 Digital board 3 3 3 5 2 A D converter board 3 3 3 5 3 Analog board 3 4 3 6 Front panel disassembly 3 5 3 7 Cooling fan removal 3 5 3 8 Main CPU firmware replacement 3 6 3 9...

Страница 8: ...s iii 1 Routine Maintenance Figure 1 1 Line fuse location 1 1 Figure 1 2 Front AMPS input fuse location 1 2 Figure 1 3 Rear AMPS input fuse location 1 3 2 Troubleshooting Figure 2 1 Model 2001 overall...

Страница 9: ...10 Table 2 6 Bit patterns for R1_STB registers 2 12 Table 2 7 Bit patterns for R2_STB registers 2 13 Table 2 8 Display board checks 2 14 Table 2 9 Power supply checks 2 15 Table 2 10 DC_STB control r...

Страница 10: ...just below the ac power receptacle see Figure 1 1 Per form the following steps to replace the line fuse 1 Insert a bladed screwdriver into the slot of the fuse carrier 2 While pushing in turn the scr...

Страница 11: ...e 1 2 CAUTION To prevent instrument damage use only the type speci ed in Table 1 2 3 Re install the fuse carrier 1 3 2 Rear AMPS input fuse The rear AMPS input fuse is located just below the AMPS inpu...

Страница 12: ...TRIGGER INPUT INPUT 1100V PEAK 350V PEAK 500V PEAK AMPS 2A MAX AMPS FUSE 2A 250V SENSE 4 WIRE HI LO OPTION SLOT the cover plate WARNING Exercise care when handling the l ter assembly The lter element...

Страница 13: ...Routine Maintenance 1 4 service personnel The procedure to replace the rm ware U611 is contained in paragraph 3 8...

Страница 14: ...the display 2 5 Built In tests Provides the procedures to test and exercise the various circuits on the digital board analog board and A D converter boards 2 6 Diagnostics Explains how to use the Dia...

Страница 15: ...its EPROM U611 and U618 and test its RAM U608 U609 and U610 If one of these tests fail the instrument will lock up 2 4 Front panel tests There are two Front Panel Tests one to test the func tionality...

Страница 16: ...e display test There are ve parts to the display test Each time a front panel key except EXIT is pressed the next part of the test sequence is selected The ve parts of the test sequence are as follows...

Страница 17: ...eference Measure ment for next test A D MUX 10 A D MUX Buffer x 0 5 Table 2 1 cont Built in test summary Test Circuit tested exercised 308 Series 308 1 308 2 4 Digit Mode A D MUX 4 Digit Signal Path A...

Страница 18: ...ould always ad dress the lowest numbered test failure rst because that failure could cause subsequent tests to fail 2 Familiarize yourself with the failed circuit Docu mentation for the Built In Tests...

Страница 19: ...ssed all the tests in a series already started will be al lowed to nish When the testing process stops the following mes sage is displayed All tests complete Press ENTER to review or EXIT The star is...

Страница 20: ...h 8 In the event of a failure press ENTER to display the rst test that failed Other test failures can be displayed by using the and keys The INFO key can be used to provide a brief summary of each dis...

Страница 21: ...s all functions except 4 Test mode Selected function Selected range Bit pattern designator Signal Phase DCV 200mV 2V 200V 20V 1000V A B C D ACV ACI and FREQ All E DCI All F 2 20 200 2k 200M 1G G H I T...

Страница 22: ...1 5 T 0V div by 1 50 U 0V div by 1 1 5 V Ohms sense minus W FE zero for 2V X See Table 2 5 for bit patterns Table 2 4 DIAGNOSTICS test modes 4 function 2k thru 200k ranges Test mode Bit pattern design...

Страница 23: ...0 1 0 0 J X X 1 1 1 1 1 0 0 1 1 1 1 0 1 1 0 1 1 0 1 0 1 0 1 0 0 0 0 1 0 0 K X X 1 1 1 1 1 1 0 1 0 1 1 0 1 1 0 1 0 1 0 1 0 1 0 1 0 0 0 1 0 0 L X X 1 1 0 1 0 1 0 1 1 1 1 1 1 1 0 1 1 0 1 0 1 0 1 0 0 0 0...

Страница 24: ...bit pattern at these registers can then be used for signal tracing through the unit Tables 2 11 and Table 2 12provide a brief description of each register bit To use these tables simply place the inst...

Страница 25: ...0mA 200mA 2A 0 1 1 1 1 0 1 0 0 1 1 1 0 1 1 0 0 1 1 0 1 1 1 0 0 1 0 1 1 1 1 0 0 0 1 1 1 1 1 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 1 1 0 1 0 1 1 0 1 1 0...

Страница 26: ...0 0 0 0 0 0 0 DCI All 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 ACI All 0 1 1 0 0 0 0 1 1 0 0 0 0 0 0 0 2 4 All 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 Range Range Registers U500 U505 Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q8 Q7 Q6 Q...

Страница 27: ...onent Required condition Remarks 1 FRONT PANEL TESTS Verify that all pixels operate Use SELF TEST MENU selection 2 P1033 pins 4 6 14 and 16 5VAC 0 3VAC VFD lament 3 P1033 pin 5 5V 5 Digital 5V supply...

Страница 28: ...Check continuity Remove to check 2 Line power Plugged into live receptacle power on Check for correct power up sequence 3 U108 pin 3 5V 5 Reference to Common 3 4 U107 pin 3 15V 0 75V Reference to COM...

Страница 29: ...rol Out FREQ In ADC CLK DATA STB TRG O P T O I S O Hardware Trigger Trigger Select Logic ADC Data In CLK DATA STB Control Data Out Trigger Delay Software Trigger External Trigger Meter Complete Trigge...

Страница 30: ...schemes 2 10 2 Power supply circuit theory The following information provides some basic circuit theory that can be used as an aide to troubleshoot the power supply Pre regulator circuit The pre regu...

Страница 31: ...low and allow its output OUT to latch at 8V which will turn on FET Q102 With Q102 on the RELAY2 line will be connected to common and thus energize K100 HI setting If the power line voltage decreases...

Страница 32: ...rate Set ADC conversion rate Set ADC conversion rate MSB Select Ohms Cal on U325 LSB Select Ohms Cal on U325 MSB U300 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 4 5 6 7 14 13 12 11 BUF BUF VLO2 BSCOM REF 1 CAL 2 ZERO FE...

Страница 33: ...Q2 Q3 Q4 Q5 Q6 Q7 Q8 4 5 6 7 14 13 12 11 4 DIGIT OHM VLO VLO HI OHM HI OHM HIV DIVIDER BSCOM OHM SELECT 4W OHM BSCOM 200M 0 Common to A D Buffer via U317 1 K300 closed OHMS relay 1 U336 and U337 turns...

Страница 34: ...526 on 500 AC divider 0 Q513 on and Q516 off 1 Q513 off and Q516 on 1 U515 closed and Q508 on x10 recti er 0 Q533 off disables peak circuit 0 U510 pin 9 closed and U510 pin 16 open 0 Q520 off increase...

Страница 35: ...lexer U511 MUX Control Lines Selected Input SEL3 SEL2 SEL1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 IN1 Peak output IN2 Filter output IN3 TRMS output IN4 ACF output IN5 Recti er output IN6 SELF...

Страница 36: ...ck It is highly unlikely that this built in test will fail A unit with faulty memory will probably fail the power on memory test or will lock up intermit tently U609 U610 and associated logic Test 102...

Страница 37: ...output port These tests make use of the fact that the Port A registers of the 68302 microprocessor U626 are bidirectional even though in normal use they are programmed as outputs only Diodes and resi...

Страница 38: ...n IEEE 488 handshake Circuitry in the 5064 U618 is set up to simulate an IEEE 488 handshake Bytes are written to the 9914 U622 Data Out register and the interrupt status register is checked to verify...

Страница 39: ...trigger 1 FET Q606 is then turned on and off through STO1 and it is veri ed that this trips the trigger circuitry in the ASIC This test is then repeated for trigger 2 through 6 for tests 105 2 through...

Страница 40: ...r 2 A D converter and analog circuitry tests There are three data words used to con gure and control the instrument The DC STB data word is used to control A D multiplexing and the input gain con gura...

Страница 41: ...l fail U808 not communicating with the digital section and most any component in A D circuitry DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1...

Страница 42: ...0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1...

Страница 43: ...Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1...

Страница 44: ...1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U3...

Страница 45: ...Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 0 Q2 0 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1...

Страница 46: ...1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 0 Q2 0 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8...

Страница 47: ...1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 0 Q2 0 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5...

Страница 48: ...0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U300 Q1 1 Q2 1 Q3 1 Q4 1 Q5 1 Q6...

Страница 49: ...pacitors DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800...

Страница 50: ...U328 and associated resistors and capacitors DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2...

Страница 51: ...sters R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0...

Страница 52: ...isters U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2...

Страница 53: ...B Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0...

Страница 54: ...18 and R278 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U8...

Страница 55: ...R201 R242 and R428 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0...

Страница 56: ...U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U305 Q1 1 Q2 0 Q3 1...

Страница 57: ...is the rst test that checks any part of the ohms circuit The components listed above are not necessarily all of the components that are tested The ohms circuit is used for most of the 300 series test...

Страница 58: ...2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 1 Q...

Страница 59: ...ers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1...

Страница 60: ...egisters R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1...

Страница 61: ...U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U305 Q1 1 Q2 0 Q3 1...

Страница 62: ...57 R358 U322 and U325 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7...

Страница 63: ...B Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 1 Q3 0 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0...

Страница 64: ...egisters R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4...

Страница 65: ...R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U30...

Страница 66: ...Q324 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1...

Страница 67: ...TB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3...

Страница 68: ...Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 1...

Страница 69: ...U322 R394 100 to 1 ratio DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6...

Страница 70: ...0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 0 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U305 Q1 1 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1...

Страница 71: ...3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 1 Q5 1 Q6 1 Q...

Страница 72: ...isters R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0...

Страница 73: ...22 produces a gain of 0 5 Measure 2 9V 5 9V x 0 5 at A D IN U341 Q304 Q341 and R421 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0...

Страница 74: ...ers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 0 Q6 0 Q7 0 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0...

Страница 75: ...7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 0 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q...

Страница 76: ...U317 R344 R592 R591 and U320 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 1 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0...

Страница 77: ...Q7 0 Q8 0 U307 Q1 1 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1...

Страница 78: ...307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q...

Страница 79: ...e for tests 309 5 and 309 6 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q...

Страница 80: ...1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6...

Страница 81: ...1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7...

Страница 82: ..._STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 0 Q2 0 Q3 0 Q4 1 Q5 1 Q6 0 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q...

Страница 83: ...D IN Q310 Q305 and R591 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0...

Страница 84: ...0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U300 Q1 1 Q2 1 Q3 1 Q4 1 Q5...

Страница 85: ...0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U300 Q1 1 Q2 1 Q3 1 Q4 1 Q5 1 Q6...

Страница 86: ...0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U300 Q1 1 Q2 1 Q3 1 Q4 1 Q5...

Страница 87: ...Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U300 Q1 1 Q2 1 Q3 1 Q4 1 Q5 1...

Страница 88: ...801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 0 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q...

Страница 89: ...22 which is con gured for x1 gain Measure 32mV at A D IN DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U5...

Страница 90: ...3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q...

Страница 91: ...h R530 U515 U509 Q501 and U516 to pin 12 of the multiplexer U511 The output OUT of the multiplexer is routed through buffer U342 to ACV A The signal on ACV Ais switched through U320 AC pulled low to t...

Страница 92: ...3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q...

Страница 93: ...d through U320 AC pulled low to the A D buffer U322 which is con gured for x1 gain Measure 0 001V at A D IN Q310 Q305 and R591 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4...

Страница 94: ...0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7...

Страница 95: ...3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q...

Страница 96: ...ain ampli er VGA that will be set for x10 gain in test 405 2 The applied value to the x10 VGA and the measured output value can be compared to check accuracy of the VGA DC_STB Registers R1_STB Registe...

Страница 97: ...R531 U509 Q501 and U516 to pin 12 of multiplexer U511 The out put OUT of the multiplexer is routed through buffer U342 to ACV A The signal at ACV A is routed through U320 AC pulled low and applied to...

Страница 98: ...1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 1 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6...

Страница 99: ...1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 1 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6...

Страница 100: ...Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 1 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0...

Страница 101: ...ed low and applied to the A D buffer U322 which is con gured for x1 gain Measure the voltage at A D IN It should be same value that was measured in test 405 5 DC_STB Registers R1_STB Registers R2_STB...

Страница 102: ...Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 1 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0...

Страница 103: ...Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 1 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1...

Страница 104: ...ed in tests 406 2 and 406 3 In test 406 6 circuit accuracy is checked by comparing the applied voltage value to the measured output SELFTEST OUT value DC_STB Registers R1_STB Registers R2_STB Register...

Страница 105: ...e signal at ACV A is routed through U320 AC pulled low and applied to the A D buffer U322 which is con gured for x1 gain Measure the voltage at A D IN The computed voltage level at A D IN is as follow...

Страница 106: ...1 Q8 1 U505 Q1 1 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U300 Q1 1 Q2...

Страница 107: ...0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 1 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5...

Страница 108: ...1 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4...

Страница 109: ...Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 1 Q2 0 Q3 1 Q4 1 Q5 0 Q6 0 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7...

Страница 110: ...ted through U320 AC pulled low and applied to the A D buffer U322 which is con gured for x1 gain DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1...

Страница 111: ...rough buffer U342 to ACV A The sig nal at ACV A is routed through U320 AC pulled low and applied to the A D buffer U322 which is con gured for x1 gain DC_STB Registers R1_STB Registers R2_STB Register...

Страница 112: ...hrough buffer U342 to ACV A The sig nal at ACV A is routed through U320 AC pulled low and applied to the A D buffer U322 which is con gured for x1 gain DC_STB Registers R1_STB Registers R2_STB Registe...

Страница 113: ...tions of this test set up the conditions for the next test DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1...

Страница 114: ...rs U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3...

Страница 115: ...U511 The output OUT of the multiplexer is routed through buffer U342 to ACV A The signal at ACV A is routed through U320 AC pulled low and applied to the A D buffer U322 which is con gured for x1 gain...

Страница 116: ...Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 0 Q8 0 U300 Q1 1 Q2 1 Q3 1 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U302...

Страница 117: ...ters U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0...

Страница 118: ...1 Q8 1 U505 Q1 0 Q2 1 Q3 1 Q4 1 Q5 0 Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 0 Q8 0 U300 Q1 1 Q2...

Страница 119: ...mpli er U523 R542 and R533 DC_STB Registers R1_STB Registers R2_STB Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 1 Q3 1 Q4 1 Q5 0 Q6...

Страница 120: ...Registers U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1...

Страница 121: ...U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 1 Q3 1 Q4 1 Q5 0 Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 0 Q2 1 Q3 0...

Страница 122: ...Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 0 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 0 Q8 0 U300 Q1 1 Q2 1 Q3 1 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U302...

Страница 123: ...rs U801 Q1 0 Q2 1 Q3 1 Q4 1 Q5 1 Q6 0 Q7 0 Q8 0 U307 Q1 1 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 1 Q8 1 U505 Q1 0 Q2 0 Q3 1 Q4 1 Q5 0 Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3...

Страница 124: ...1 Q8 1 U505 Q1 0 Q2 1 Q3 1 Q4 1 Q5 0 Q6 1 Q7 1 Q8 0 U800 Q1 1 Q2 1 Q3 0 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U305 Q1 1 Q2 0 Q3 1 Q4 0 Q5 0 Q6 0 Q7 1 Q8 1 U500 Q1 0 Q2 1 Q3 0 Q4 1 Q5 1 Q6 1 Q7 0 Q8 0 U300 Q1 1 Q2...

Страница 125: ...ffer U342 to ACV A The signal at ACV A is routed through U320 AC pulled low and applied to the A D buffer U322 which is con gured for x1 gain Measure the output at A D IN DC_STB Registers R1_STB Regis...

Страница 126: ...511 at pin 5 The output OUT of the multiplexer is routed through buffer U342 to ACV A The signal at ACV A is routed through U320 AC pulled low and applied to the A D buffer U322 which is con gured for...

Страница 127: ...utput OUT of the multiplexer is routed through buffer U342 to ACV A The signal at ACV A is routed through U320 AC pulled low and applied to the A D buffer U322 which is con gured for x1 gain Measure t...

Страница 128: ...exer is routed through buffer U342 to ACV A The sig nal at ACV A is routed through U320 AC pulled low and applied to the A D buffer U322 which is con gured for x1 gain Measure 1 7V at A D IN DC_STB Re...

Страница 129: ...Troubleshooting 2 116...

Страница 130: ...Explains how to re move the display board and or the front panel switch pad 3 7 Cooling fan removal Explains how to remove the cooling fan from the chassis 3 8 Firmware replacement Provides the proce...

Страница 131: ...y grounded work station Also ground yourself with a suitable wrist strap 3 Handle the devices only by the body do not touch the pins 4 Any printed circuit board into which the device is to be inserted...

Страница 132: ...Digital board The digital board is removed through the bottom of the chassis see drawing 2001 053 Note that the power switch pushrod does not have to be removed in order to remove the digital board P...

Страница 133: ...g board at connectors J1024 and J1025 and the third is located on the digital board at con nector J1032 Turn the chassis upside down to gain access to the plug on the digital board When nished return...

Страница 134: ...retaining clips that snap onto the chassis over four pem nut studs Two retaining clips are located on each side of the front panel Pull the retaining clips outward and at the same time pull the front...

Страница 135: ...p until it completely seats into the chip carrier 3 9 Instrument re assembly The instrument can be re assembled by reversing the previous disassembly procedures Make sure that all parts are properly s...

Страница 136: ...ning replacement parts contact your Keithley representa tive or the factory see inside front cover for addresses When ordering parts be sure to include the following information Instrument model numbe...

Страница 137: ...L JFET SELECTED J210 TRANS N CHANNEL JFET 5432 TO 92 IC 5V REGULATOR 78L05AC T0 92 RES 100K 5 125mW METAL FILM 1206 RES 475 1 125mW METAL FILM 1206 RES 2 21K 1 125mW METAL FILM 1206 RES 33 2K 1 125mW...

Страница 138: ...C 8 STAGE SHIFT STORE MC14094BD SOIC IC OP AMP NE5534D SOIC IC VOLT COMPARATOR LM311M SOIC IC VOLT COMPARATOR LM393D SOIC IC QUAD COMPARATOR LM339D SOIC PROGRAM IC OP AMP OPA602AP IC OP AMP LT1097 IC...

Страница 139: ...Replaceable Parts 4 4...

Страница 140: ...uF 20 50V CERAMIC 1206 CAP 1UF 20 50V CERAMIC 1206 CAP 1000pF 20 50V CERAMIC 1206 CAP 33PF 10 100V CERAMIC 1206 CAP 47PF 10 100V CERAMIC 1206 CAP 4 7PF 5 50V MONO CERAMIC 0805 CAP 100PF 5 100V CERAMIC...

Страница 141: ...405 100P C 476 2 2 C 64 47P C 480 2 2 C 482 33 C 465 150P C 465 150P C 483 100 CR100 CR101 108 CR102 103 113 114 117 118 CR104 CR106 CR109 112 CR305 CR309 CR317 318 CR321 323 324 327 CR322 CR331 337...

Страница 142: ...7 550 Q501 505 507 509 513 516 522 523 538 544 551 TRANS NPN MMBT3904 SOT 23 TRANS N MOSFET VN0605T SOT 23 TRANS P CHAN MOSFET TP0610T SOT 23 TRANS PNP MMBT3906L SOT 23 TRANS NPN DARLINGTON TIP101 TO...

Страница 143: ...UNT RES 243K 1 125MW METAL FILM 1206 RES 140K 1 125MW METAL FILM 1206 RES 499K 1 125MW METAL FILM 1206 RES 100K 1 125mW METAL FILM 1206 RES 562K 1 125MW METAL FILM 1206 RES 33 5 250mW METAL FILM 1210...

Страница 144: ...1206 RES 270 5 250mW METAL FILM 1210 RES 33 5 250mW METAL FILM 1210 RES 100K 1 125mW METAL FILM 1206 RES 4 7K 5 125MW METAL FILM 1206 RES 9 09K 1 1 10W METAL FILM RES 46 4K 1 1 8W METAL FILM RES 220 5...

Страница 145: ...06 RES 100K 1 125mW METAL FILM 1206 RES 200K 5 250MW METAL FILM 1210 RES 68K 5 125MW METAL FILM 1206 RES 2K 5 125MW METAL FILM 1206 RES 1M 5 125MW METAL FILM 1206 RES 1K 5 125MW METAL FILM 1206 RES 33...

Страница 146: ...50MW METAL FILM 1210 RES 1 1 2W 4 TERMINAL MOLDED RES 91 1 1 4W WIREWOUND RES 2K 5 125MW METAL FILM 1206 RES 10K 5 125MW METAL FILM 1206 RES 330 5 125MW METAL FILM 1206 RES 1 2M 5 125MW METAL FILM 120...

Страница 147: ...SOIC IC VOLT COMPARATOR LM393D SOIC IC VOLT COMPARATOR LT1016CS8 SOIC IC QUAD 2 INPUT NAND 74HC00M SOIC IC MCHAN LAT DMOS QUAD FET SD5400CY SOIC IC CMOS ANALOG SWITCH DG211DY SOIC IC 8 CHAN ANA MULTI...

Страница 148: ...ENER 22V BZV55C22 SOD 80 DIODE ZENER 15V IN5352 CASE 17 DIODE ZENER 6 2V BZX84B6V2 SOT 23 DIODE ZENER 8 2V MMBZ5237 SOT 23 DIODE ZENER 15V 1N4744A TO 41 DIODE ZENER 4 3V BZX84C4V3 SOT 23 DIODE ZENER 5...

Страница 149: ...Replaceable Parts 4 14...

Страница 150: ...6V ALUMINUM CAP 47UF 10 16V ALUM ELEC CAP 3 3UF 20 50V POLY FILM CAP 270PF 20 100V CERAMIC FERRITE CAP 01uF 20 50V CERAMIC 1206 CAP 47PF 10 100V CERAMIC 1206 CAP 22UF 20 6 3 TANTALUM C6032 CAP 1UF 20...

Страница 151: ...5 250MW METAL FILM 1210 RES 15K 1 125mW METAL FILM 1206 RES 10K 1 125mW METAL FILM 1206 RES 150 5 250MW METAL FILM 1210 RES 14K 1 125mW METAL FILM 1206 RES 1M 5 250MW METAL FILM 1210 RES 100K 1 125mW...

Страница 152: ...RANS 75161 SOLIC MOD DC AC DC 5DV 5VAC 60DC E705 E905VF MO 30 IC 16 BIT MICRO MC68302FE IC 18V OP AMP TLC 271 IC VOLT COMPARATOR LM393D SOIC IC 16 BIT MICRO MC68302FC IC SERIAL EEPROM X24164 8 PIN DIP...

Страница 153: ...Replaceable Parts 4 18...

Страница 154: ...N SHIELD CHASSIS LEFT LEXAN SHIELD CHASSIS RIGHT LINE CORD LUG MOUNTING EAR LEFT MOUNTING EAR RIGHT OVERLAY INPUTS PC BOARD STOP PLASTIC PLUG FOR SCANNER COVER PLATE POWER ROD PRINTED FRONT PANEL SHIE...

Страница 155: ...2VDC 100mA CONN AC RECEPTACLE LINE FILTER BANANA JACK PUSH IN RED BANANA JACK PUSH IN BLACK BANANA JACK PUSH IN WHITE CONN MOLEX HEADER CONNECTOR HOUSING CS 725 FN 26 LF 6 1 BJ 13 2 BJ 13 0 BJ 13 9 CS...

Страница 156: ...A Model 2001 Specifications A 1...

Страница 157: ...ble based on your calibration sources For example calibrating with a 10V primary standard rather than a 20V calibrator will reduce calibration uncertainty and can thereby improve total 2001 accuracyfo...

Страница 158: ...22 9 7 7 1 16 7 ms 20 ms 25 61 2 57 48 42 38 54 45 43 35 48 41 39 32 0 2 3 34 ms 4 ms 22 61 2 201 186 102 113 173 162 102 99 129 127 84 83 0 1 1 67 ms 2 ms 21 51 2 201 201 126 116 175 173 105 105 129...

Страница 159: ...1 Specifications apply for 10 reading digital filter If no filter is used add 0 25 of range typical uncertainty 2 Typical values 3 Add 0 001 of reading VIN 100V 2 additional uncertainty for inputs abo...

Страница 160: ...51 2 57 48 38 35 53 45 36 33 48 41 34 30 0 1 1 67 ms 2 ms 21 51 2 136 136 70 70 122 122 64 64 98 98 56 56 0 01 167 s 167 s 16 41 2 140 140 71 71 127 127 66 66 99 99 58 58 0 018 167 s 167 s 16 41 2 20...

Страница 161: ...5 2 k 2100 0000 100 1 m 0 98 mA 5 V 100 0 2 V to 2 V 2 5 0 2 20 k 21 000000 1 m 10 m 89 A 5 V 1 5 k 0 2 V to 2 V 4 0 2 200 k 210 00000 10 m 100 m 7 A 5 V 1 5 k 11 0 2 2 M 4 2 1000000 100 m 1 770 nA 5...

Страница 162: ...C at the factory 7 For TCAL 5 C following 55 minute warm up Specifications include traceability to US NIST 8 In burst mode display off Burst mode requires Auto Zero refresh by changing resolution or m...

Страница 163: ...ing of reading 20 50Hz 50 100Hz 100 200Hz rms Average 0 55 0 09 0 015 AC DC COUPLING For DC 20 of AC rms voltage apply the following additional uncertainty multiplied by the ratio DC AC rms of Reading...

Страница 164: ...ating 3 Typical values 4 For DELAY 0 digital filter off display off internal trigger Aperture is reciprocal of line frequency These rates are for 60Hz and 50Hz 5 Actual maximum voltage burden maximum...

Страница 165: ...196 STAT QUE CLE 3 1 ms 322 TRG 1 2 ms 833 FUNCTION CHANGE SPEED1 AUTO ZERO OFF AUTO ZERO ON FROM TO RATE RATE Function Function Range s TIME per second TIME per second Any DCV 200mV 2V 8 1 ms 1 2 0...

Страница 166: ...ranges 3 Auto Zero off using 386SX 16 computer average time for 1000 readings byte order swapped front panel disabled 4 Typical times for 0 01 power line cycle autorange off Delay 0 100 measurements...

Страница 167: ...5 5 1 2 NORMAL CALIBRATION Type Software No manual adjustments required Sources 2 DC voltages 2V 20V and 2 resistances 19k and 1M Different calibrationsourcevaluesareallowed Allotherfunctionscalibrat...

Страница 168: ...nstable Will not read applied input Overload Calibration only Certi cate of calibration required Data required attach any additional sheets as necessary Show a block diagram of your measurement system...

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