Support #272
K2 - repair status.
30%
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
Updated by tin over 10 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:
Updated by tin over 10 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 |
Updated by tin over 10 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
Updated by tin almost 8 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.