Support #272

K2 - repair status.

Added by tin about 7 years ago. Updated almost 3 years ago.

Status:ClosedStart date:18/07/2012
Priority:NormalDue date:
Assignee:tin% Done:

30%

Category:-
Target version:Keithley 2001 #2

Description

K2 Digital board + K2 Analog board + K2 Display + K1 ADC board

Power on OK

Error codes FAIL:

105.2 - FIXED
304.6 - FIXED
304.7
401.1 - FIXED by replacing Q330 and Q512
402.1 - FIXEd by replacing Q330 and Q512
404.1 - FIXED by replacing Q330 and Q512
404.2
404.3
404.4
404.5
405.2
405.4
405.6
405.8
406.6 - New
407.1
407.2
407.3
409.6
410.1 - by replacing Q330 and Q512
411.1 - by replacing Q330 and Q512
411.2 - by replacing Q330 and Q512
412.1 - by replacing Q330 and Q512

Associated revisions

Revision 211:d72f1a201c5a
Added by tin over 4 years ago

Added Keithley schematics manuals and 2001M manuals.
Added fixed Keithley #2 photos ID #272 @16h

Revision 211:d72f1a201c5a
Added by tin over 4 years ago

Added Keithley schematics manuals and 2001M manuals.
Added fixed Keithley #2 photos ID #272 @16h

Revision 212:ae25844a3e74
Added by tin over 4 years ago

Added large photos ID #272 @2h

Revision 212:ae25844a3e74
Added by tin over 4 years ago

Added large photos ID #272 @2h

History

#1 Updated by tin about 7 years ago

  • Status changed from New to Resolved

#2 Updated by tin about 7 years ago

  • Status changed from Resolved to In Progress

#3 Updated by tin about 7 years ago

PASS PASS PASS PASS PASS FAIL FAIL FAIL FAIL FAIL FAIL FAIL FAIL FAIL PASS FAIL PASS FAIL PASS FAIL PASS FAIL FAIL FAIL FAIL PASS PASS FAIL FAIL FAIL FAIL FAIL FAIL FAIL FAIL FAIL FAIL
304.1 304.2 304.3 304.4 304.5 304.6 304.7 401.1 402.1 404.1 404.2 404.3 404.4 404.5 405.1 405.2 405.3 405.4 405.5 405.6 405.7 405.8 407.1 407.2 407.3 408.1 408.3 409.1 409.2 409.3 409.4 409.5 409.6 410.1 411.1 411.2 412.1
R354 R354 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511 U511
Q324 U526 U526 U526 U526 U526 U526 U526 U526 U526 U526 U526 U526 U526 U526 U526 U526 U526 R219 U526
Q312 Q312 Q312 Q312 Q312 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U531 U532
Q320 Q320 Q320 Q320 Q320 U528 R233 R233 R233 R233 R233 R233 R233 R233 R233 R233
R394 R394 R394 U522 U517 U517 U522 U522 U522 U522 U522 U517 U517 U517
Q328 Q328 Q328 U532 U532 U532 U532 U532 U532 U532 U532 U532 U532 U532 C554 C554 C556 C556 U317
U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 U322 C583 U322
U323 U323 R560 R560 R560 R560 R560 R560 R560 R557 R557 R557 R557 U523 U523 U323
U324 R558 K503 R557 R557 R557 R557 R557 R557 K503 K503 K503 CR305
R350 Q516 Q516 Q516 Q516 K500 Q516 Q516 Q516 Q516 Q516 Q516 Q516 K500 K500 K500 CR309
R215 U519 U519 U519 U519 U519 U519 U519 Q512 Q512 Q512 Q512 Q512 Q512 Q512 Q512 Q512 C583 Q512 Q512
R349 U507 U507 U507 U507 U507 U507 U507 U519 U519 Q505 Q518 Q505 Q505 Q518 Q518 U519 U519 U519 Q516
R366 R366 U509 U509 U509 U509 U509 U509 U509 U509 U509 U509 U509 U509 U503 U503 U503 U509 U509 U509 U509
U332 R530 R530 R530 R530 R530 R530 R530 R530 R530 R530 R530 R530 R530 R530 R530 R530
U325 U325 U325 U516 U516 U516 U516 U516 U516 U516 U516 U516 U516 U516 U516 U516 U516 U516 U516
R365 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501 Q501
R358 R358 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U342 U324 C582 C582 U519
R355 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 U320 C581 C581 U320
R356 Q509 Q509 Q509 Q509 U523 U523 U523 U523 U523 Q509 Q509 Q509 Q509
R357 Q507 Q507 Q507 Q507 Q507 Q507 Q507 Q507 R542 R542 R542 R542 R542 Q507 Q507 Q507 Q507
Q330 R531 R531 R531 R531 R531 R531 R531 R531 R533 R533 R533 R533 R533 R531 R531 R531 R531
U335 Q310 Q310 Q310 Q310 Q510 Q510 Q510 Q510 Q510 Q510 Q510 Q510 R222 R222
Q313 Q305 Q305 Q305 Q305 C529 C529 C529 C529 C529 C529 U510 U510
Q308 R591 R591 R591 R591 R220 R220
U318 Q508 Q508 Q508 Q508 R221 R221 U342
U528 Q513 Q513 Q513 Q513 U320
U515 U515 U520 U520 U520 U520 U520 U520 U520 U520 U520 U520 U520 U520

Suspicious components:

#4 Updated by tin about 7 years ago

Resistors R591, R220, R531, R350, R215, R349, R354, R394, R530, R219, R221, R222, R558
Diodes CR305, CR309
Relays K503, K500
IC U324, U519, U507, U509, U516, U517, U515, U503, U510, U317
Transistors Q501, Q509, Q507, Q310, Q305, Q508, Q513, Q518
Capacitors C556, C581, C582, C583

#5 Updated by tin about 7 years ago

Resistors

R354 - RES, 100M, 1%, 1/2W, THICK FILM
R394 - RES NET, 100K, 9.9M, METAL FILM
R530 - RES NET,250K,9.34K,1K,10.233K,15K,7K

IC

U317 - IC, CMOS ANAL. SWITCH, DG411DY
U324 - IC,OP-AMP,AD707,(SOIC)
U503 - IC, RETRIG., MULTIVIB, 74HC123AM (SOIC)
U507 - IC, VOLT. COMPARATOR, LT1016CS8
U509 - IC, MCHAN LAT DMOS QUAD FET, SD5400CY (SOIC)
U510 - IC,CMOS ANALOG SWITCH DG211DY
U515 - IC,CMOS ANALOG SWITCH DG211DY
U516 - IC,OP-AMP, AD848JR (SOIC)
U517 - IC,TRMS TO DC CONVERTER, 637JR (SOLIC)
U519 - IC,OP-AMP, AD848JR (SOIC)

Transistors

Q305 - TRANS, N-HEXFET, IRFR020 (D-PAK)
Q310 - TRANS, N-CHANNEL FET, BUZ71 (TO-220)
C Q501 - TRANS, N-CHAN JFET, SST4416 (SOT-23)
C Q507 - TRANS, N-CHAN JFET, SST4416 (SOT-23)
C Q508 - TRANS, N-CHAN JFET, SST4416 (SOT-23)
C Q509 - TRANS, N-CHAN JFET, SST4416 (SOT-23)
C Q513 - TRANS, N-CHAN JFET, SST4416 (SOT-23)
C Q518 - TRANS, N-MOSFET, VN0605T (SOT-23)

Capacitors

C556 - CAP, 270PF, 1%, 300V, MICA
C581 - CAP, .33UF, 20%, 63V, POLYCARBONATE
C582 - CAP, .33UF, 20%, 63V, POLYCARBONATE
C583 - CAP, .33UF, 20%, 63V, POLYCARBONATE

#6 Updated by tin about 7 years ago

  • Description updated (diff)

#7 Updated by tin about 7 years ago

  • Description updated (diff)
  • % Done changed from 0 to 30

#8 Updated by tin over 4 years ago

  • Status changed from In Progress to Resolved

Replaced all electrolytic caps.
Desolder U507, U508, U509 and clean under pads.
Replace R526,R280,R520.
Replaced U516 to ADA4898-1YRDZ opamp

No selfdiag errors now.
Write article for site and post links on forums.

#9 Updated by tin almost 3 years ago

  • Status changed from Resolved to Closed

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