Search found 23 matches

by gillandro
14 May 2019, 23:10
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

thank you i will check those points...still need to test board two as i know those resistor packs are in properly
by gillandro
14 May 2019, 22:06
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

thank you...ill keep checking with my loup and meter if it doesnt work at this point its something i did wrong and i wont find it....i appreciate all your help....i will have to check the second board as well....if the same issues are there then im not sure what it could be as making the same mistak...
by gillandro
14 May 2019, 19:24
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

getting there....u13 pin 5, u22/23 pin 10 now read 0.....i plug the board in leds 5-8 come on for a second then go out.....now what or am i missing a resolder joint thanks
by gillandro
14 May 2019, 16:56
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

can i flow solder in from the top? or do i need to rensolder from the bottom? and based on what i sent....i know its probably me being confused but can you list the ones that need to be addresssed i see the pin 5 of u13 and the pins of u22 and 23 but which others as well. thanks basically if i read ...
by gillandro
14 May 2019, 14:33
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

so a back cleaning might be all i need?
by gillandro
13 May 2019, 00:06
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

i tested all the pins and based on the sheet it said might be some shift....for example a pin reading 0.595 is just about the 0.600v that the sheet says is good for pin being connected to load....but here are the pins i found anomalies on based on the spread sheet u13 pin 5—.652 u19 pin 14–.430 u20 ...
by gillandro
12 May 2019, 19:49
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

so according to the new chart those chips are good then because i was pulling readings exactly like those on those chips so far....thanks
by gillandro
12 May 2019, 01:34
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

i found u3 and u4 having 0.435v on a pin where it should have read 0.700v or so
by gillandro
12 May 2019, 00:09
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

readings should be in the case of pin one of u1 0.700v? and pins 39 and 40 of eprom common?
by gillandro
04 May 2019, 01:09
Forum: Kit assembly
Topic: board testing
Replies: 40
Views: 964

Re: board testing

thank you....i will test all the chips till i get the desired readings from each and see what happens.