TDA1541 problem, CDP M75 service man. - diyAudio
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Old 24th February 2009, 09:51 AM   #1
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Join Date: Jan 2008
Default TDA1541 problem, CDP M75 service man.

Hi,

I have problem with DA converter in this CD player. Distorted sound only in right chanel. I found solution here, but it does not help, I replaced ALL condersers around TDA1541 - I hate it :-( . And I replaced also the TDA1541. The PS lines are very noisy with glitches, but I think, this can't be the reason. It seams for me, that problem is at digital side of TDA1541. I checked input signal, and CLK is like sinus. The output signal of right chanel look like this:

<img src="http://www.volny.cz/r_dusek/dist_TDA1541.gif">

Please, if somebody has service manual for this player Sony CDP M75 a I can offer for exchange, check the apended list.
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Old 24th February 2009, 03:46 PM   #2
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Join Date: Jan 2008
once more the image:

Click the image to open in full size.

and the list ( why attachment does't work ?)

14.01.2004 10:27 2˙189˙150 Aiwa_cd_sm.pdf
12.11.2008 12:27 1˙113˙421 cd_mech_AZG2.pdf
12.11.2008 12:32 1˙107˙104 cd_mech_AZG6.pdf
12.11.2008 12:29 1˙760˙396 cd_mech_KSM2131.pdf
12.11.2008 12:34 2˙886˙776 cd_mech_KSM240.pdf
12.11.2008 12:31 1˙592˙440 cd_mech_KSM880.pdf
12.11.2008 12:36 1˙595˙672 cd_mech_KSM880y.pdf
12.11.2008 12:25 1˙606˙530 cd_mech_KSM880z.pdf

28.10.2000 07:44 4˙387˙077 AKAI CDM600.pdf
14.06.2000 15:17 3˙580˙079 ARCAM 70.2-170 CD.pdf
12.11.2008 13:38 1˙234˙850 Arcam_CD72_CD92_Service.pdf

15.03.2006 07:38 242˙263 Cam_Audio_D500_Schematics.pdf

06.12.2008 00:01 7˙440˙787 denon_dcd-1500_service.pdf
12.04.2006 09:59 3˙059˙475 DCD1560.pdf
03.01.2009 21:38 562˙199 DCD1560_1.PDF
03.01.2009 21:40 119˙193 DCD1560_2.PDF
29.01.2008 16:39 1˙318˙705 DCD-920_diagram.pdf
17.09.2006 11:24 4˙441˙543 Denon POA2200 SM.pdf

12.09.2008 22:20 2˙451˙664 grundig_cd_23_service_en_de.pdf

29.09.2005 18:01 6˙512˙979 Harman Kardon HD710 sm.pdf
15.03.2006 07:43 4˙818˙158 hd-7625.pdf
18.01.2006 15:53 1˙587˙798 HK670.pdf

15.05.2008 09:19 826˙551 LUXMAN_L210_Schem.pdf

26.01.2008 20:06 9˙428˙611 CD43_53_63_Service_Manual.pdf
02.07.2008 15:37 5˙620˙951 CD94SM.pdf

12.09.2008 22:13 3˙342˙413 nad_5420_5425_service.pdf
02.07.2008 15:35 1˙406˙408 NAD_5420_5425.pdf

24.10.2008 13:03 6˙897˙891 nakamichi_cd_player_4_service[1].pdf
05.12.2008 23:54 1˙331˙790 nakamichi_dragon_cd-dac_ltd_service.pdf

02.07.2008 15:34 2˙196˙409 dx7211_7111sm.pdf
03.01.2009 11:18 1˙450˙840 Onkyo CDC3.pdf
03.01.2009 11:01 1˙606˙284 Onkyo DX-6800 CD.pdf
03.01.2009 11:04 1˙495˙539 Onkyo DX-C120-220-320.pdf
03.01.2009 11:15 1˙908˙496 Onkyo DX-C140 DX-C340.pdf
03.01.2009 11:15 1˙908˙498 Onkyo DX-C140&C340.pdf
03.01.2009 11:15 1˙857˙855 Onkyo DX-C201 DX-C101.pdf
03.01.2009 11:16 1˙731˙098 Onkyo DX-M505.pdf
03.01.2009 11:16 726˙990 Onkyo DX-RD511.pdf
03.01.2009 11:09 1˙795˙661 Onkyo DX100.pdf
03.01.2009 11:11 1˙541˙983 Onkyo DX150.pdf
03.01.2009 11:06 1˙796˙428 Onkyo DX2500.pdf
03.01.2009 11:06 1˙724˙915 Onkyo DX3800.pdf
02.07.2008 15:32 1˙953˙192 Onkyo_DX7500.pdf

11.08.2008 22:45 701˙772 Audio_Power_Amplifiers-Philips.pdf
26.01.2008 14:06 4˙158˙603 CD150.pdf
25.02.2005 13:40 2˙309˙957 cd500.pdf
25.02.2005 13:40 2˙915˙232 cd582.pdf
25.02.2005 13:40 4˙563˙720 cd600.pdf
25.02.2005 13:40 2˙924˙769 cd604.pdf
25.02.2005 13:40 2˙862˙855 cd605.pdf
25.02.2005 13:40 2˙893˙021 cd624.pdf
25.02.2005 13:40 3˙496˙683 cd630.pdf
25.02.2005 13:40 2˙643˙107 cd640.pdf
25.02.2005 13:40 8˙286˙195 CD723.pdf
25.02.2005 13:40 200˙179 cd753.pdf
25.02.2005 13:40 2˙339˙117 cd771_NL.pdf
25.02.2005 13:40 2˙324˙273 cd782_NL.pdf
25.02.2005 13:40 2˙663˙571 cd840.pdf
25.02.2005 13:40 2˙977˙040 cd850.pdf
25.02.2005 13:40 4˙002˙945 CD850MkII.pdf
21.06.2008 12:27 28˙007˙688 CD930_950.pdf
05.12.2008 23:57 2˙620˙077 philips_cd204_service_nl.pdf
05.12.2008 23:57 3˙370˙979 philips_cd303_service_nl.pdf
05.12.2008 23:58 4˙597˙268 philips_cd304_service_nl.pdf
05.12.2008 23:58 10˙287˙291 philips_cd960_service_nl.pdf
05.12.2008 23:58 271˙962 philips_cdm-12-1_service.pdf
05.12.2008 23:59 4˙572˙277 philips_cdm-1_service_nl.pdf
25.07.2003 10:25 7˙304˙597 EXP32x_mp3_players.pdf
18.03.2008 17:08 803˙030 VAM1201.pdf

25.02.2005 13:40 3˙008˙332 cd660.pdf
25.02.2005 13:40 197˙453 cd660_2.pdf

15.08.2005 12:06 2˙884˙008 104article.pdf
15.08.2005 12:09 13˙280˙176 104manual.pdf
25.02.2005 14:39 3˙673˙010 cd104_1.pdf
25.02.2005 14:39 3˙673˙010 cd104_2.pdf

25.02.2005 13:40 3˙688˙141 cd350.pdf

27.09.2006 20:02 1˙476˙694 Philips CDM-9.pdf

12.09.2008 22:10 2˙805˙697 pioneer_pd-s502_service.pdf
19.11.2008 15:30 1˙890˙004 PD-104_PD-204_-_PD-004.pdf
02.07.2008 15:16 1˙651˙663 PD-117.pdf
02.07.2008 15:17 1˙735˙372 PD-217.pdf
02.07.2008 15:20 2˙216˙734 PD-S507.pdf
02.07.2008 15:19 2˙426˙511 PD-S707.pdf
01.06.2006 21:50 8˙643˙746 PD8500.pdf
29.05.2000 15:38 3˙608˙135 PIONEER PDZ82.PDF

10.08.2008 22:28 304˙283 PD-M630.pdf
10.08.2008 22:26 1˙111˙194 PD-M630_1.PDF
10.08.2008 22:29 677˙401 PD-M630_2.PDF
10.08.2008 22:29 313˙812 PD-M630_3.PDF
10.08.2008 22:30 269˙300 PD-M630_4.PDF

02.07.2008 15:17 397˙479 PD-S504_part1.pdf
02.07.2008 15:18 456˙574 PD-S504_part2.pdf

02.07.2008 15:21 3˙673˙068 CA80ES.pdf
16.04.2007 03:50 5˙187˙908 CDP-338ESD_608.pdf
23.07.2008 12:28 4˙384˙279 CDP-XB920.pdf
17.01.2009 20:41 1˙260˙092 CDP311_navod.pdf
10.11.2008 21:30 1˙766˙047 CDP397_navod.pdf
10.11.2004 22:17 7˙347˙474 CDP_CX200.pdf
12.09.2008 21:56 735˙780 sony_cdp-195_295_491_service.pdf
12.09.2008 21:59 3˙413˙523 sony_cdp-291_391_service.pdf
12.09.2008 22:05 5˙199˙381 sony_cdp-338_608esd_service.pdf
12.09.2008 22:03 551˙759 sony_cdp-x707es_service_sup.pdf
12.09.2008 22:10 8˙282˙320 sony_cdp-x779es_service.pdf
11.02.2005 01:29 9˙344˙343 SCD-1_Service_manual.pdf
11.02.2005 02:41 7˙350˙969 SCD-XB940_manual.pdf
12.10.2006 18:17 3˙744˙768 sony CDP-M33.pdf audio.pdf
12.11.2008 13:23 1˙907˙663 SONY_CDPCX240.pdf

12.09.2008 21:48 791˙770 technics_sl-p999.pdf
05.12.2008 23:49 238˙302 technics_sl_pg480a_schematic.pdf
12.11.2008 13:17 1˙277˙226 SL-PS770A.pdf
02.07.2008 15:14 1˙277˙226 TECHNICS_PS_770A.pdf
02.07.2008 15:14 223˙192 TECHNICS_SL_PG480A.pdf
Attached Files
File Type: txt seznam.txt (6.1 KB, 35 views)
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Old 24th February 2009, 06:28 PM   #3
anatech is offline anatech  Canada
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Hi dusr_123,
I'm sorry, but I don't have that manual. I wasn't aware that Sony ever used a Philips D/A. Learn something new every day.

One manual that might help you is the Nakamichi OMS-2. I don't have that one either (but if anyone has it, I could use it). That one also uses a TDA1541A D/A converter. Do you have the spec sheet for the TDA1541A? That, I can give you.

I did notice that you had a couple Philips CDM mechanism manuals. Would you be willing to send them to me? If so, please email them to : bhomester at gmail dot com. Don't want my email address to become a target for junk.

Have you checked your DC supply voltages? If so, what are they?

Always watch out for a conductive glue that Sony used. It starts off a yellowish off-white. The more brown it gets, the lower the resistance can be. If it's black, that's bad news. If you see any, cut and scrape it out. It will corrode component leads, heat and /or moisture accelerate the problem.

-Chris
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