philips cd930 service manual

kaulagalvis · 25th March 2007, 11:14 AM

hello,I have problem with philips cd930,dont work servo,in display no info but it light,buttons dont work.I think that servo have no voltage .laser read disk.
I need service manual or need help.thanks.

kaulagalvis · 26th March 2007, 07:51 AM

with remote control play ok

kaulagalvis · 27th March 2007, 04:31 PM

problem is in display board,I have other philips cd930 and conect, display board for it no result,replace some trasistors no result,
buttons dont work, display show "...............................",with remote controler player work ok.display no.

philpoole · 28th March 2007, 09:14 AM

Hi,

I've worked on a CD940 a bit, but only on the main board. I don;t have any schematics for the display (mainly because I think this is the main bit they change to differentiate between models).

can you trace the voltages going into the display board and see if there are any anomalies?

When you used the display from a different CDP, did you use its ribbon cable, or the ribbon cable from the faulty player?

Not being familiar with the board, that's what I'd do first.

Cheers,
Phil

kaulagalvis · 28th March 2007, 07:05 PM

I conect other display board in this philips cd and it is ok,problem in display board,I replace all transistors but no result.I find different voltages (for two boards) on some resistors,but I dont know what to do,bad display board procesor?but remote control work.I dont know this procesor is for buttons and remote or no,I can replace him,it is toshiba ,I have it. help me.thanks.

QSerraTico_Tico · 28th March 2007, 08:49 PM

Quote:

Originally posted by kaulagalvis
I conect other display board in this philips cd and it is ok,problem in display board,I replace all transistors but no result.I find different voltages (for two boards) on some resistors,but I dont know what to do,bad display board procesor?but remote control work.I dont know this procesor is for buttons and remote or no,I can replace him,it is toshiba ,I have it. help me.thanks.

Is it a vacuum tube display?

philpoole · 30th March 2007, 11:11 AM

Yes, it is a VFD, or vacuum tube display.

It is quite plausible that the display module is broken, but the rest of the circuitry is still fine (including IR).
I assume the keys on the front panel also work?

Cheers,
Phil

kaulagalvis · 30th March 2007, 12:19 PM

I replace all keys,I think that procesor is bad or it havent signal or voltage,I think to change procesor,but I waiting for service manual,perhaps proc is good.I think that problem in proc,because buttons dont work,procesor have voltage because show".............".

philpoole · 30th March 2007, 12:51 PM

Processors can of course fail, but I'd be surprised. Unless there is a firmware issue, a processor will either work or no at all. Considering the IR is working (unless that isn't serviced by the processor) I think the processor is okay.

kaulagalvis · 30th March 2007, 01:27 PM

thanks.this problem began when I "play" with transformator,when cd was power on ,was bad contact in transformators socket,it is for display power(display no work) supply,when I conenct contact began this problem.display has power supply "......................",but something happening in display board.

25th March 2007, 11:14 AM	#1
kaulagalvis diyAudio Member Join Date: Apr 2006 Location: vilnius	philips cd930 service manual hello,I have problem with philips cd930,dont work servo,in display no info but it light,buttons dont work.I think that servo have no voltage .laser read disk. I need service manual or need help.thanks.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Philips CD930/CD931/CD940 service manual	Bricolo	Digital Source	33	15th February 2009 09:11 AM
philips cd 880 philips cd880 service manual	0519	Digital Source	4	28th August 2008 11:43 AM
Philips CD930 service manual	volturnofelix	Digital Source	2	27th November 2007 10:11 AM
Philips FA-911 Service manual	karelg	Solid State	0	13th August 2007 06:29 PM
Looking for a service manual for Philips DFA-888	JohanH	Swap Meet	1	29th February 2004 06:08 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

26th March 2007, 07:51 AM	#2
kaulagalvis diyAudio Member Join Date: Apr 2006 Location: vilnius	with remote control play ok

27th March 2007, 04:31 PM	#3
kaulagalvis diyAudio Member Join Date: Apr 2006 Location: vilnius	problem is in display board,I have other philips cd930 and conect, display board for it no result,replace some trasistors no result, buttons dont work, display show "...............................",with remote controler player work ok.display no.

28th March 2007, 09:14 AM	#4
philpoole diyAudio Member Join Date: Oct 2004	Hi, I've worked on a CD940 a bit, but only on the main board. I don;t have any schematics for the display (mainly because I think this is the main bit they change to differentiate between models). can you trace the voltages going into the display board and see if there are any anomalies? When you used the display from a different CDP, did you use its ribbon cable, or the ribbon cable from the faulty player? Not being familiar with the board, that's what I'd do first. Cheers, Phil

28th March 2007, 07:05 PM	#5
kaulagalvis diyAudio Member Join Date: Apr 2006 Location: vilnius	I conect other display board in this philips cd and it is ok,problem in display board,I replace all transistors but no result.I find different voltages (for two boards) on some resistors,but I dont know what to do,bad display board procesor?but remote control work.I dont know this procesor is for buttons and remote or no,I can replace him,it is toshiba ,I have it. help me.thanks.

30th March 2007, 11:11 AM	#7
philpoole diyAudio Member Join Date: Oct 2004	Yes, it is a VFD, or vacuum tube display. It is quite plausible that the display module is broken, but the rest of the circuitry is still fine (including IR). I assume the keys on the front panel also work? Cheers, Phil

30th March 2007, 12:19 PM	#8
kaulagalvis diyAudio Member Join Date: Apr 2006 Location: vilnius	I replace all keys,I think that procesor is bad or it havent signal or voltage,I think to change procesor,but I waiting for service manual,perhaps proc is good.I think that problem in proc,because buttons dont work,procesor have voltage because show".............".

30th March 2007, 12:51 PM	#9
philpoole diyAudio Member Join Date: Oct 2004	Processors can of course fail, but I'd be surprised. Unless there is a firmware issue, a processor will either work or no at all. Considering the IR is working (unless that isn't serviced by the processor) I think the processor is okay.

30th March 2007, 01:27 PM	#10
kaulagalvis diyAudio Member Join Date: Apr 2006 Location: vilnius	thanks.this problem began when I "play" with transformator,when cd was power on ,was bad contact in transformators socket,it is for display power(display no work) supply,when I conenct contact began this problem.display has power supply "......................",but something happening in display board.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)