Author Topic: CD PLAYER/DAC MOD  (Read 65126 times)

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Offline jpeg

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Re: CD PLAYER MOD
« Reply #90 on: Apr 30, 2008 at 10:41 AM »
Mga Sir,

Anybody know where I could get OPA2228? or AD823? and the adaptor needed cause mine is soldered directly to the board. 

Thanks.

Jason
« Last Edit: Apr 30, 2008 at 11:20 AM by jpeg »
Rega DAC, SVS MBS 01,  Bada DC-222, B&W 705/HTM7, Denon 3300

Offline rascal101

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Re: CD PLAYER MOD
« Reply #91 on: Apr 30, 2008 at 11:56 AM »
If you're using Plastic DIP ICs, you can buy at Alexan or Deeco.

Offline jpeg

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Re: CD PLAYER MOD
« Reply #92 on: Apr 30, 2008 at 01:13 PM »
thanks sir. :)
Rega DAC, SVS MBS 01,  Bada DC-222, B&W 705/HTM7, Denon 3300

Offline jpeg

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Re: CD PLAYER MOD
« Reply #93 on: May 13, 2008 at 05:58 PM »
Anybody know where I could get LM4562 op amp? Would also like to ask if i could use the AD8066 SOIC8 pin on a DIP 8 socket. Sorry for the newbie question. Haven't seen a SOIC8 op amp kasi. :)

Thanks.

Jason
« Last Edit: May 14, 2008 at 03:05 PM by jpeg »
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Offline jpeg

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Re: CD PLAYER MOD
« Reply #94 on: Jun 12, 2008 at 02:15 PM »
 My CDP now undergoing surgery.  ;D Planning to change my Power supply diode. The current one is MUR460. The one I got is a different kind. It has 3 pins and is rectangular with metal on top. Can I use these in exchange to the MUR460? How do I install? Do I cut off the middle or do I connect the middle to one of the sides? If connecting, which side? Start of the arrow or at the end of the arrow?

Sorry don't know much about electronics.
 ;D

Jason
Rega DAC, SVS MBS 01,  Bada DC-222, B&W 705/HTM7, Denon 3300

Offline john5479

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Re: CD PLAYER MOD
« Reply #95 on: Jun 12, 2008 at 02:34 PM »
You need to find a direct replacement for your rectifiers but if i were you i would not change them at all. You are dealing with the power supply here so you need to be familiar with the circuit before making changes.

Offline 1_C_E_M_A_N

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Re: CD PLAYER MOD
« Reply #96 on: Jun 12, 2008 at 04:37 PM »
My CDP now undergoing surgery.  ;D Planning to change my Power supply diode. The current one is MUR460. The one I got is a different kind. It has 3 pins and is rectangular with metal on top. Can I use these in exchange to the MUR460? How do I install? Do I cut off the middle or do I connect the middle to one of the sides? If connecting, which side? Start of the arrow or at the end of the arrow?

Sorry don't know much about electronics.
 ;D

Jason

anong part number po nung diode na 3 pin?

Offline jpeg

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Re: CD PLAYER MOD
« Reply #97 on: Jun 13, 2008 at 10:36 AM »
Sir John,

Would take your advise. Unless someone could tell me how to install it. Sayang kasi yung parts.  :)


Sir ICEMAN,

It's an HFA08TB60PBF. When I ordered from Farnell, the photo seemed like the middle pin was connected to the pin #1 making it 2 pin only. But when I got the item, it had 3 pins.

Could I just cut it and solder to pin #1?

Will also check with Farnell. They might have sent me the wrong item. :)

Would really appreciate if you could help me out.

Jason

« Last Edit: Jun 13, 2008 at 11:02 AM by jpeg »
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Offline ferds

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Re: CD PLAYER MOD
« Reply #98 on: Jun 13, 2008 at 01:35 PM »
according po dito sa datasheet nya: http://www.irf.com/product-info/datasheets/data/hfa08tb60pbf.pdf

two pins lang po sya.. baka po mali ung naibigay..
------> www.FerdsAudio.com <------- Updated July 8

Offline jpeg

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Re: CD PLAYER MOD
« Reply #99 on: Jun 13, 2008 at 04:24 PM »
yup. Checked the data sheet too. I already sent them an email. :) It came from Singapore cause they don't have stocks here. So they have to check with their Singapore Office. :) At least I could use it when they change the item. ;D

Thanks.

Jason
Rega DAC, SVS MBS 01,  Bada DC-222, B&W 705/HTM7, Denon 3300

Offline romymartinez

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Re: CD PLAYER MOD
« Reply #100 on: Jun 16, 2008 at 09:02 AM »
Not really a mod, but after reading some post about it, I placed a 12kg weight on top of my vintage Denon DCD-670 (to reduce vibration?!?!). To my newbie ears it now sounded a little bit "cleaner".  ;D

romymartinez

Offline ProtegeManiac

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Re: CD PLAYER MOD
« Reply #101 on: Jun 16, 2008 at 04:14 PM »
Not really a mod, but after reading some post about it, I placed a 12kg weight on top of my vintage Denon DCD-670 (to reduce vibration?!?!). To my newbie ears it now sounded a little bit "cleaner".  ;D

romymartinez

what i did was stick cork on marble tiles (to keep it from scratching the CDP) then put that on top of the CDP, then the integrated amp on top of that.

aside from that, I've seen people sticking car audio sound deadening materials inside the CDP chassis, usually on the cover. personally though Im not comfortable with anything not absolutely solid over the transport (or in the case of multi-disk players, the carousel).

I opened my CDP and found that while playing there was considerable vertical movement by the CD, and when I touched the plastic base of the spindle there was a lot of vibration. same with a few spots on the side panels not part of the cover and the rear panel. what i did was, i put blutac on all these spots, and i can see the CD wasn't moving other than hte spinning motion necessary for playing. the top cover i didn't bother with the blutac as i want to make sure nothing falls onto the moving parts.

Offline Ix

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Re: CD PLAYER MOD
« Reply #102 on: Oct 06, 2008 at 10:10 AM »
If you're using Plastic DIP ICs, you can buy at Alexan or Deeco.


couldn't find any OPA2134s at either store :( would anyone here know where i could get that?

Offline edwin

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Re: CD PLAYER MOD
« Reply #103 on: Oct 07, 2008 at 09:17 PM »

couldn't find any OPA2134s at either store :( would anyone here know where i could get that?

You should get it from RS Components or Farnell
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Offline romymartinez

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Re: CD PLAYER MOD
« Reply #104 on: Oct 15, 2008 at 09:25 AM »
In case you missed it, fellow PDVDer alexg posted in 'Tubes section' his tube output mod for his vintage Denon DCD-590:

Link:
http://pinoydvd.com/board/index.php?topic=86367.09



Offline XXXyzledge

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Re: CD PLAYER MOD
« Reply #105 on: Oct 15, 2008 at 09:44 AM »

couldn't find any OPA2134s at either store :( would anyone here know where i could get that?

recently upgraded the stock opamp of my cdp to
a bb opamp 2111...

bought a matched pair from master JojoD &
installed them myself with special instructions
from the master...


upgrade was well worth the expense!
SQ has a day & night difference!


 
Cayin, RS1, Velo, QED, Bada         Sony4K, HK, B&W, SVS, Oppo, LaZboy....

Offline oweidah

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Re: CD PLAYER MOD
« Reply #106 on: Oct 16, 2008 at 12:33 PM »

couldn't find any OPA2134s at either store :( would anyone here know where i could get that?

try pm ferds. got my 2107, 2132 & 2134 from him.

or try "vapo_chill" baka meron pa siya
« Last Edit: Oct 16, 2008 at 12:40 PM by oweidah »

Offline romymartinez

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Re: CD PLAYER MOD
« Reply #107 on: Nov 18, 2008 at 12:45 PM »
Sir ferds is very kind and replaced the stock opamp (six pieces of NE553X) with OPA227/2227 of my late 80s Denon DCD-1610 (weighs 10kg). He also disabled the mute circuit.

Thanks Sir ferds!!  ;D  ;D

Offline vapo_chill

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Re: CD PLAYER MOD
« Reply #108 on: Nov 29, 2008 at 06:09 AM »
try pm ferds. got my 2107, 2132 & 2134 from him.

or try "vapo_chill" baka meron pa siya

kung anu man yung nasa kin they were from ferds naman. ^_^

Offline lakambini

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Re: CD PLAYER MOD
« Reply #109 on: Jul 07, 2009 at 02:36 PM »
Dear expert/s:

Does anyone here who wants to tweak/improve my decade old harman/kardon hd710?

Pls post or pm parts to be replaced and your service,

Tnx

Offline romymartinez

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Re: CD PLAYER MOD
« Reply #110 on: Jul 08, 2009 at 09:18 AM »
Try to get in touch with fellow members who had done some mods as posted in this thread.

Offline mcbry

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Re: CD PLAYER MOD
« Reply #111 on: Sep 17, 2009 at 10:38 AM »
meron na bang nakapag modify ng car audio head unit dito?
is there a way to improve the SQ of Alpine 9887 Headunit?

here's the specs:
http://www.alpine-usa.com/US-en/products/product.php?model=CDA-9887&lang=en&tab=F

Offline ProtegeManiac

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Re: CD PLAYER MOD
« Reply #112 on: Sep 22, 2009 at 08:59 PM »
meron na bang nakapag modify ng car audio head unit dito?
is there a way to improve the SQ of Alpine 9887 Headunit?

here's the specs:
http://www.alpine-usa.com/US-en/products/product.php?model=CDA-9887&lang=en&tab=F


Bakit bro, manipis ba ang tunog? Baka kulang lang sa time alignment. Yun Pioneer 860mp ko depende kung sino tatanungin mo sasabihin nila manipis or warm ang stock settings. Depende sa speakers at t/a lang yan.


Although iniisip ko rin kung puwede palitan yun op-amps :)

Offline simonzaide

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Re: CD PLAYER MOD
« Reply #113 on: Oct 01, 2009 at 12:01 PM »
friends,

lets say i have opamps to be used already . can you point me to a shop or a person who can help me do the upgrade im really bad with soldering and tinkering with electronics kasi

Offline mcbry

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Re: CD PLAYER MOD
« Reply #114 on: Oct 01, 2009 at 02:53 PM »

Bakit bro, manipis ba ang tunog? Baka kulang lang sa time alignment. Yun Pioneer 860mp ko depende kung sino tatanungin mo sasabihin nila manipis or warm ang stock settings. Depende sa speakers at t/a lang yan.

Although iniisip ko rin kung puwede palitan yun op-amps :)

ok naman sa akin yung tunog, bro. sa time alignment naman i have no problem with it. 
na curious lang ako kasi wala pa akong naririnig na gumawa ng mods sa HU.
mostly mga mods for home audio cd player lang.

Offline ProtegeManiac

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Re: CD PLAYER MOD
« Reply #115 on: Oct 01, 2009 at 07:03 PM »
@mcbry,

Mahirap kasi sa parts at mas maliit yan lahat, plus mahirap i-pin down yun benefits kasi maraming tweaking tools. Kung makakuha ako ng schematics ng vintage an Class A amp, ipapa-clone ko tas lagyan ko rin ng solid state buffer. Madali na siguro gayahin yun V10D kasi 12v DC na yan :-)


@simon,

Punta ka AudioAmplified, meron pa opamps na naka-stock dun, malapit lang naman sa office mo yan.

Offline simonzaide

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Re: CD PLAYER MOD
« Reply #116 on: Oct 02, 2009 at 10:30 AM »
thanks protege silipin ko nga sya pag may kotse na eto yung sa eastwood right ?

Offline ProtegeManiac

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Re: CD PLAYER MOD
« Reply #117 on: Oct 03, 2009 at 08:26 AM »
@simon,

Yeah, across Shopwise, yun building right after ChinaBank na may Kowloon take-out window  ;)

Offline rascal101

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Re: CD PLAYER MOD
« Reply #118 on: Dec 24, 2009 at 01:28 PM »
Pre, never use an Os-con as a coupling (dc blocking) capacitor.

It's listed as one of the prohibited use because of the high leakage current.

Basahin mo ito:

http://www.sanyo.com/industrial/electronic_components/capacitors/os_con/downloads/oscon_instructions.pdf

Nasa item number 2) ng mga prohibited circuits.

I wonder is putting the Oscon caps back to back with its negative pin connected together and having a 100K connected and pulled to -5V? Any long term issues? I copied this from the configuration that Walt Jung has on the tantalum caps.

I have a number of Oscon caps and it would be a waste if I didn't use them.
« Last Edit: Dec 24, 2009 at 01:30 PM by rascal101 »

Offline kulapong

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Re: CD PLAYER MOD
« Reply #119 on: Jan 13, 2010 at 12:55 PM »
I have my Teac CD player na 110, nai saksak ni mrs sa 220.....yari!!

i opened it and found no fuse,...magkano kaya pa repair neto...at kung pa mode ko na rin kaya...

mga how much kaya aabutin...need to know kung worth it pa or itatapon ko na..

kindly pm me if anyone is interested to repair/mod and how much...or kung me gustong bumili....pampasikip kasi

Salamat!
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