 |
|
| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
| Reply |
|
|
LinkBack | Thread Tools | Display Modes |
|
#1
|
|||
|
|||
HP 10529A Repair Question
I picked one these and it has LED's 13 threw 16 lit in the test mode
all the time. Problem points to U6. Quad 2 Input NOR Gate. TI SN4467, HP 1820-0328. When the output is low the Led lights up. It looks like the replacement would be a SN7433, Quade 2 input NOR with open collector. Can someone conferm this. Dose anyone have a cross reference to the HP IC part numbers for this model? Thanks RJ |
|
#2
|
|||
|
|||
|
On 23 Sep 2005 09:01:06 -0700 "RJ" wrote:
I picked one these and it has LED's 13 threw 16 lit in the test mode all the time. Problem points to U6. Quad 2 Input NOR Gate. TI SN4467, HP 1820-0328. When the output is low the Led lights up. It looks like the replacement would be a SN7433, Quade 2 input NOR with open collector. I show the 1820-0328 (SN4467) crossing to a SN7402. - ----------------------------------------------- Jim Adney Madison, WI 53711 USA ----------------------------------------------- |
| Reply |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Refrigerator repair story with a happy ending ! | Home Repair | |||
| LeCroy Oscilloscope/ VME/ CAMAC/ NIM/ FASTBUS repair | Electronics Repair | |||
| Drywall Repair Question | Home Repair | |||
| Question shet metal repair | Metalworking | |||
| Gas Dryer repair question | Home Repair | |||
Linear Mode
