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Hello folks,
I though I'd post the results of this repair, as the digital board for these amps is NLA. I was able to source the RAM chip on the digital board, replaced it, and was successful with the repair. The original RAM is CY7C1021CV33-12Z1. It can be replaced with CY7C1021BV33-12ZC which I was able to source on eBay for $2.99. CHEAP, TOO!
You will need to have experience with a TSOP II Z44 case style & lead pitch. I haven't done a lot of replacement of this pitch IC for quite a few years, as well as not having the expensive-professional equipment I had at my disposal when I worked for Echostar. So, it was definitely a bit of a struggle. Between copious amounts of liquid solder and 'hot air', and some of my own (;- ) , I was able to do an acceptable job of replacing it.
The dealer has another Stage 1000 with a slightly different digital board symptom, so we'll see if the RAM repair's that, too. I'll let y'all know.
Glen
I though I'd post the results of this repair, as the digital board for these amps is NLA. I was able to source the RAM chip on the digital board, replaced it, and was successful with the repair. The original RAM is CY7C1021CV33-12Z1. It can be replaced with CY7C1021BV33-12ZC which I was able to source on eBay for $2.99. CHEAP, TOO!
You will need to have experience with a TSOP II Z44 case style & lead pitch. I haven't done a lot of replacement of this pitch IC for quite a few years, as well as not having the expensive-professional equipment I had at my disposal when I worked for Echostar. So, it was definitely a bit of a struggle. Between copious amounts of liquid solder and 'hot air', and some of my own (;- ) , I was able to do an acceptable job of replacing it.
The dealer has another Stage 1000 with a slightly different digital board symptom, so we'll see if the RAM repair's that, too. I'll let y'all know.
Glen