Tsop replacement ?

[mcrob]

After replaceing a tsop (301-013) I get can't program offset 7fc00000, but can save and rewrite content on chip which is all f, has anyone replace this chip (M29w320DT from Mouser), if so what file was use ....tks Bob

[skinerd]

Done several, most sucessfully, some not, always just used jkeys.......

[A340]

I had a similar problem with a 301_010 for (1) month. Took it to a friend workshop this morning. He have a very powerful microscope, observed every pin, (saw them as big as a finger), and sure thing, cold solder joints, also, pins not making proper contact. I used a soldering iron to resolder the pins since I could have see them so big. Working like a dream since 9am today. I was ready to call the undertaker for this unit.

A340

[HBSIG]

I finally was able to download Flash 1 and 2 for my 301.010. Kickenchicken info says erase and write flash 1 first and then flash 2. On this site I read to erase and write Flash 2 first, then flash 1 and finally the virgin eeprom.

Does the order for 1 & 2 matter? Thanks

[skinerd]

I finally was able to download Flash 1 and 2 for my 301.010. Kickenchicken info says erase and write flash 1 first and then flash 2. On this site I read to erase and write Flash 2 first, then flash 1 and finally the virgin eeprom.

Does the order for 1 & 2 matter? Thanks


For a -010, no the order is not important......

[mcrob]

Update

When through all connection and clean betwween pins, afterward j-tag programed and box working great...Tks

Also have another 301-013 that i replace the DALA tsop with an DANC + Eprom, box keys and IRD# come up with j-tag, but want boot up or led will not flash, anyone know where to start with this problem?