DVD read error

[wrl]

Hello,

I have a Denon ADV-700 DVD/home theater combo and it will no longer read DVD's. It reads CD's fine, but the laser will can seem to find where to start for DVD's. Does anybody have any suggestions on how I can fix this?

My thoughts: Either I have to replace the whole transport/optical assembly, or maybe I can just replace the optical pickup.

Does anyone have any other suggestions or comments about what I could try. Also if it might be some other problem?

Thanks,

Wes

 

[Miniwatt]

My El-Cheapo DVD player does the same. Cleaned the lens 500 times, greased the laserrails, still nothing. I'm going to buy a new one, these SMD-PCB's are beyond my capabilities. But your player isn't El-Cheapo I guess....

Not much help, I know.. Good luck!

 

[wrl]

Any other suggestions?

I got in touch with Denon tech support and got the part number. They said I'd have to replace the whole transport.

Before I order this $100 part, does anybody have any other suggestions about what could be to cause. I just want to make sure that replacing the whole unit will fix the problem and its not some firmware or hardware problem further up the line.

Has anybody fixed this kind of problem before?

Thanks,

Wes

 

[tenderland]

denon

clean the laser lens with alcohol and a q tip ,gently

 

[wrl]

Thanks, tenderland

I tried that, but it didn't fix the problem. Does anybody know if I can just order the laser and replace that. I've found a few sites that sell them, but they are all overseas.

Denon told me that I would have to order the entire transport, but I'm not sure why that would be necessary


-Wes

 

[tenderland]

transport

most units I have erplaced in warranty have come with the entire transport. Look on the pick up itself and see who makes it. I have seen dennon use Sony transports before. If it is a Sony look for a KhM number EG. KHM-240AAA. Some are aval at MCM electronics

 

[jaycee]

See if theres a laser intensity adjustment preset on the laser itself. Try carefully adjusting it (be warned, excessive adjustment will knacker the laser, but if its that or a new transport you have nothing to lose). I've fixed quite a few cd players this way.

 

[wrl]

The laser unit is a HOP1000. I think thats hitachi. Do you have any suggestions about where to look for the intensity adjustment? Is it just a pot somewhere on the laser assembly?

-Thanks,

Wes

 

[jondavis]

yes, it is a small pot on the side of the optical circuitry,near the ribbon cable. I've tried adjusting it on a dvdrom but it doesn't work for me. just have to replace the optical pickup which costs $20 here.

 

[Nampton]

I've got an ADV-700 that isn't reading properly either - image keeps freezing up after around 5 minutes of playback. Removed the hop-1000 pick-up and saw two pots - does anyone know which one controls laser intensity.

Wes - managed to fix yours yet?

 

[Chartal]

Hi

I saw somewhere that HOP-1000 was replace by HOP-1120.

Anyway look at this site they have both.

Global Electronic Supplies Inc

Good luck

 

[wrl]

Mine has been pushed to the backburner for a bit. I spoke with Denon tech support and they faxed me a few pages from the repair manual. Unfortunately, the image quality wasn't the greatest on the diagrams.

I'll let you know when I try anything.


-Wes

 

[wintermute]

My Marantz DV-18 wouldn't play VCD's (it was supposed to), then it wouldn't load CD's then the display went all funny and it wouldn't load anything.

I didn't try and fix it myself, took it to the repair shop. It had some dry joints in the "digital" pcb. They reflowed the sus joints and everything worked fine again......

might not be the optics

Tony.