LVA510 Availability ?

Par Hit-Biter

Master (160)

Portrait de Hit-Biter

04-08-2022, 15:23

Hey Guys I'm looking for the LVA510 chip for a Toshiba HX-10. I'm wondering if any of you have a spare one for sale or know where one can be found ? Don't want to break another HX-10 just for the chip !

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Par Daemos

Paragon (2009)

Portrait de Daemos

04-08-2022, 19:10

Par sdsnatcher73

Prophet (3538)

Portrait de sdsnatcher73

04-08-2022, 20:31

RepairBas also has them I think.

Par Hit-Biter

Master (160)

Portrait de Hit-Biter

04-08-2022, 21:42

I think so but that seems pricey.

Par Hit-Biter

Master (160)

Portrait de Hit-Biter

04-08-2022, 21:43

sdsnatcher73 wrote:

RepairBas also has them I think.

RepairBas ?

Par Wierzbowsky

Guardian (3496)

Portrait de Wierzbowsky

04-08-2022, 22:38

I have constant problems getting working LVA510 chips from China. From the last batch of 3 chips I could use only one. I wish someone created the replacement of that bloody old and unreliable chip!

Par Hit-Biter

Master (160)

Portrait de Hit-Biter

04-08-2022, 23:35

Alexey wrote:

I have constant problems getting working LVA510 chips from China. From the last batch of 3 chips I could use only one. I wish someone created the replacement of that bloody old and unreliable chip!

Alexy, I only need one Big smile Can you link me to your Chinese source and can you tell me if they are expensive ? I understand that Chinese chips are often fake but will they take my money and run ? Even if i have to buy 3 just to get one i dont mind as long as there not that expensive in the first place.

Anyone know what else the LVA510 is used for ? If i can find one in an old video recorder, or something, i wouldn't mind tearing it apart for the chip !

Par mohai

Paladin (978)

Portrait de mohai

05-08-2022, 12:15

Alexey wrote:

I have constant problems getting working LVA510 chips from China. From the last batch of 3 chips I could use only one. I wish someone created the replacement of that bloody old and unreliable chip!

I think it is a nice idea but, the info about this chip is scarce.
You can get some info from the MSX technical docs, such as Yamaha and Philips computers and guess how the chips works.
Maybe you can find an MSX-1 that has a different chip (if any ? ) and try to get a replacement.

AFAIK, LVA510 does fix the extra voltage in the color components (at sync time) from the TMS9929a, it is configurable for NTSC and PAL and delivers luma and chroma (S-Video style) signals.

Par gdx

Enlighted (5708)

Portrait de gdx

05-08-2022, 12:38

Products from China (AliExpress, eBay) are often made-up recycled products sold as new products. So you have to make sure you can get reimbursed in the event of a problem to buy them because some probably won't work.