What is the value of ceramic capacitor and diodes

If you wish to get some details; check the site linked here. Pull up older posts. http://schematicscom.blogspot.com/
http://electronicshelponline.blogspot.com/
Circuit diagrams of many popular brand TVs and other devices are given.

Hi Saidi
Have you checked all the other components used in the main power supply regulator section circuit, before replacing a new STR? You should do it. There should be a reason for the failure to STR. You should find it, and rectify it, before replacing an other STR. Check all the small components, resistors, zener diodes, small value ceramic capacitors etc: Make sure all of it are OK. Especially give a keen attention to zener diodes used; if any. It will be best to replace these diodes, even if you do not find any fault with it with multimeter test.For more information go to http://electronicshelponline.blogspot.com/
Power supply schematics to some popular brand TVs are given. Pull up older posts. Good Luck.

Hi Max,

Ceramic types are often found at the low range of capacitive values and electrolytic types are are the high end of capacitive values. Ceramic and electrolytic caps do certain jobs better when of one design instead of the other. The capacitive values may be the same, but there are other qualities that don't get printed on the part. One of the most noticeable differences is that electrolytic types don't do a very good job passing radio frequencies (RF). You'll often see several ceramic types in parallel (if needed) to get the correct amount of capacitance when a single electrolytic would appear to do the job in an circuit where the frequency is in the RF range. Audio Frequencies (AF) on the other hand are significantly lower and do not pose the same problem. There are other types of caps and they each have situations where they would do the best job.

In short, the developer / manufacturer selects all the parts based on a wide range of variables he needs to control based on design and testing. You should always replace components with like components, otherwise you risk adverse reaction(s) from one of those variables that had originally been contained.

Click the link below for some basic info about caps:

http://dev.emcelettronica.com/guide-to-capacitors-electrolytic-capacitor-ceramic-capacitor-and-others

I hope this was helpful & good luck!

There are no fuses on the motherboard.

The X4701 may be a Macom RF Power MOSFET, and will probably be located close to the X4701 designation, silkscreened on the motherboard.
Doesn't EVEN look like a fuse.

This is a general example of a Power MOSFET,

https://docs.google.com/viewer?a=v&q=cache:oER5NNz8cwcJ:www.fairchildsemi.com/ds/FD/FDS6675BZ.pdf+Fairchild+FDS6675BZ&hl=en&pid=bl&srcid=ADGEEShOhWPjm_M-ROHme4iEMrztCTOd-28jNiy1hVLQQh_VOyv8zcXEVDB_iTQA6MuZO88UmRkDgjyW9j4CP2aIJ-4DS-h6JNM3lvxldeApQeecmz_DADCw1s7tmNLxfPknqX14SZP6&sig=AHIEtbS_rYUAeo_8rB9YHkW05ZjLqeH4Jg

Notice the J-leads on the sides.

I wonder if you are looking at a crystal diode, or an MLCC ceramic capacitor, (Multi Layer Ceramic Capacitor, and is SMD. Surface Mount Device)

http://www.magnaquartz.com/wp-content/uploads/2011/05/crystal-diode.jpg

http://www.mouser.com/Passive-Components/Capacitors/Ceramic-Capacitors/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT/_/N-b2cj?P=1z0wrkiZ1z0t6fg

(Scroll down)

At any rate let's look at a Satellite C655D series of Notebook PC's motherboard,

http://www.ebay.com/itm/Toshiba-Satellite-C655-Intel-Motherboard-V000225020-1310A2355302-/251167301769?pt=Motherboards&hash=item3a7abce089

Under the large main views are small views.
The view to the far left is the Bottom side.
The third view from the Left is the Top side.

You have to click on each one, one at a time, then you can use the Zoom In feature for that view.
Using the Zoom feature, can you try to point out the electronic component?

Use a reference point we can both follow. State a known large component near it, and go from there.

You know what the processor socket, and graphics chipset is. They are covered by the Cooling Tube.
You know what Power MOSFETs look like now, and Ceramic Capacitors.
The small aluminum 'can's that have a purple mark on one side, are solid Polymer capacitors. (Doubt they are Tantalum)

Also, I realize that it gives one a sense of pride to repair a motherboard, and the cost of the electronic components are MUCH cheaper than buying a replacement motherboard, but a replacement may be the way to go.

(Fairchild Semiconductor International - FDS6679 - Power MOSFET is around $1.
Ceramic capacitors, (MLCC, and SMD), are around 60 to 82 cents.
From the Ebay link it looks like $39 to replace the motherboard)

Capacitor failure? Ehh. No problem if we're talking SMD MLCC ceramic capacitors.

Diode goes bad? Could led to power going to the wrong place, and other electronic components could have been affected.
Could be bad, or about to go bad.
Jus sayin'.

This would mean motherboard replacement is the more logical solution, IMHO.
Post back in a Comment.

Regards,
joecoolvette

They’re not capacitors you have pointed out on the schematic, they’re inductors and their value is 0.47 micro Henrys. You can’t bluff your way through electronics, especially when giving advice. I thought this was a forum to help people, not hinder.

The value of CX3211 is 1000pF 10% 2000V, ceramic disc.
You can also download the service manual from this website. Make sure to download all the 7 files.
Good Luck.

Check for shorted transistor, shorted diode, leaking/dried capacitor it could be ceramic or electrolytic. Look for some shunting diode or capacitor that is connected about horizontal size/width ciircuit. Leaking, shorted or open can make horizontal size shrink or expand.

Ive been through this. Although it certainly appears to be a ceramic capacitor, its actually called a polyswitch. .65 amp. Parts express carries them. Part no. 071-256.

Have your tried the factory service manual: http://www.xenons130.com/reference.html

Hope this helps!

Todd in Idaho

'69 510
'83 280ZXT
'91 300ZXTT

I had the same problem. My nephew gave me this set after it quit working at the Gym where his wife was working. They were going to junk it but I asked if I could try and fix it.
The capacitor C2250 was definately blown and easy to spot so I did some searching and found a replacement from an online electronics supplier that didn't require me to buy 200+ as Digitech wanted. Anyway I replaced the Cap and it still didn't work so I started looking and testing components again and found that the Diode D2250 was bad so replaced it as well and now the set works fine. Maybe this is what is wrong with your's and others as well.
It made sense for me to check the diode as it is right next to the cap that blew. https://www.mouser.com for the Cap and http://www.slelectronics.net/ for the Diode.
The specs for the Cap/ CERAMIC CAP. B K 1500pF/1KV
The specs for the Diode/ SCHOTTKY BARRIER DIODE YG123S15


Hope this helps