#61
|
||||
|
||||
Just snagged a VA62A on eBay for $42.50 from a seller within 20 miles of me. Claimed to be working, and the only thing that looks wrong in the auction pics is that somebody busted off the ground pin on the power cord. Once I get the thing onto the bench, I'll be wanting one of the hacked EPROMs for my unit, as well. Will PM you soon to make arrangements...
Thanks for all the great info on these units! Particular thanks to Phil for hosting all those manual scans! Just grabbed the full set... Last edited by N2IXK; 09-28-2012 at 02:03 PM. |
#62
|
||||
|
||||
Got the unit on the bench over the weekend, and everything seems to work just fine. All the patterns display properly, RF frequencies all nice and stable on a counter, and all the drive signals look good on a scope. Replaced the line cord, and swapped the 3 front panel RCA jacks (30 Hz Servo drive, Video out, and 3.58 MHz drive) for BNCs. Why would they even use RCA phono jacks on this kind of equipment? BNCs are much more rugged with stuff being plugged/unplugged all the time.
How many different accessory units were made for this thing? I know of the NTSC pattern generator and the VCR test unit. Any others? |
#63
|
||||
|
||||
UPDATE:
Received the mod EPROM from Dave, and it works great. Opened up the RF range from 35-50MHz to 11-85 MHz with solid PLL lock over the whole range. Now to install the RF/IF level switch.... |
#64
|
||||
|
||||
Thats good news! Looks like the old VA62 firmware that the modification is based on has worked in all the VA62A versions tried so far. Be very careful and check over thee RF/IF switch wiring, as it switches +/- supply voltages to control the RF/IF amplifier output sections. Get the wires wrong and it could be bad news!
|
#65
|
||||
|
||||
Switch installed, and all is working great! Thanks, all!
|
Audiokarma |
#66
|
||||
|
||||
Thank you for posting the VA62A information, Phil. I just bought one of these units on Ebay and I appreciate your efforts.
__________________
Chris Quote from another forum: "(Antique TV collecting) always seemed to me to be a fringe hobby that only weirdos did." |
#67
|
||||
|
||||
Here here. Likewise for me as well. Thanks for you work.
|
#68
|
||||
|
||||
VA62 rom
Quote:
and your mod is just what I need. Thanks Bob R. |
#69
|
||||
|
||||
Yes I still have of the mod EPROMs. I will send you a PM.
Dave |
#70
|
|||
|
|||
modified eeprom still available?
Hate to resurrect an old thread, but I am interested if these modified eeproms are still available for sale?
|
Audiokarma |
#71
|
||||
|
||||
Aaronwhite30, yes they are still available. I just re-sent my reply to your email. Let me know if it does not make it through this time.
Dave |
#72
|
|||
|
|||
eeproms
Sorry Dave, I am still not getting the emails. Are you sending them to aaronwhite30@hotmail.com? You could use my alternate email aaron30white30@gmail.com
|
#73
|
||||
|
||||
Hmm, maybe a spam filter is at work? I just sent to both of the email addresses you listed. Hope it gets through.
Dave |
#74
|
|||
|
|||
email trouble
CRAP! I had my receive emails from members turned off, I set it on, could you try again?
|
#75
|
|||
|
|||
Would it be possible to just send a Paypal invoice to my Paypal address aaronwhite30@hotmail.com?
|
Audiokarma |
|
|