can anyone help? I an trying to get the part number for two diodes in this model hitachi. I need p/n for d110 and d156 or replacement p/n's. Thanks in advance.
hitachi CMP4202E
Collapse
X
-
Tags: None
-
Re: hitachi CMP4202E
Post a good clear picture of the board they are on and a close up of the area
where they are and a close up of the two itemsLast edited by selldoor; 04-26-2012, 09:32 AM.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740 -
Re: hitachi CMP4202E
service manual here with psu schemo
http://www.eserviceinfo.com/download..._CMP4202E.htmlMost of the time things ain't what they seem to beComment
-
Re: hitachi CMP4202E
Finally got this set to work. After many hours of troubleshooting, it turned out to be bad caps everwhere! Y sustain, Z sustain, powersupply and Logic boards. Installed some good caps and this tv is now working really well. Thanks again for all the great help!!!Comment
Related Topics
Collapse
-
by caspianDear members,
I have a linear variable power supply with unknown brand name that I used for voltage injection.
Then it failed. I discovered that its transistors (Q1 and Q2) are shorted.
In addition, I discovered that its zener diodes are defective.
I can replace the burned transistors.
But I do not know the model of the zener diodes. the model number is not marked on the zener diodes.
Therefore, I cannot replace the zener diodes.
I do not want to test the zener diodes in a test circuit to discover their model or value.
no schematics are available... -
by Fontana
- g´day! I have a samsung 22" tv monitor to fix. power supply model bn44-00505A. some stuff blown up on the primary, according to research something typical on this model. secondary seems ok. writings on the board say in outputs a5v (standby), b5v (switched) both on the lower 3 diodes on the picture, vamp and b13v (12.8v, both are the linked at the connector that goes to the main board) my question is, are both the upper diodes for 13v? I believe so but wanted to make sure before injecting voltage there to test. I injected 5v on the lower side and standby circuit is working fine
- if
12-18-2023, 05:45 AM - g´day! I have a samsung 22" tv monitor to fix. power supply model bn44-00505A. some stuff blown up on the primary, according to research something typical on this model. secondary seems ok. writings on the board say in outputs a5v (standby), b5v (switched) both on the lower 3 diodes on the picture, vamp and b13v (12.8v, both are the linked at the connector that goes to the main board) my question is, are both the upper diodes for 13v? I believe so but wanted to make sure before injecting voltage there to test. I injected 5v on the lower side and standby circuit is working fine
-
Hi folks. As the title says, I was doing a port replacement on a Lenovo Thinkpad T480s and in the process of post-solder cleaning, I somehow knocked off 2 or 3 diodes (i think they are diodes) near the main usb-c. I can't seem to find what kind of a diode is that. I know it's ultra tiny and just has a letter "G" on it. Would someone maybe have a proper schematic for the t480s model? I can only find the non-s one and it's quite different to the "s". Would love to figure out what component that is.
Thanks in advance!... -
by massimomaxChiedo aiuto per problema a TV Hitachi 32HE4500 che non si accende più,ho bisogno del firmware della scheda madre vestel 17MB211S codice pannello VES315UNVL-2D-N11 ?
spero che qualcuno può averlo per riprogrammare eprom. grazie
Post in English !!!
I ask for help with a problem with a Hitachi 32HE4500 TV that no longer turns on, do I need the firmware for the Vestel 17MB211S motherboard, panel code VES315UNVL-2D-N11? I hope someone can have it to reprogram eprom. Thank you
-
by DjKrishHey guys, i have a sony home theater power supply thats a few smd zener diodes blown but its so hard to get them. any recommendation for me to use normal zener diodes?
1. UDZSTE-1710B (9.99V 5mA) (SC-90, SOD-323F)
2. UDZSTE-1724B (24V 200mW) (SC-90, SOD-323F)
3. UDZSTE-175.1B (5.1 V 200 mW) (SC-90, SOD-323F)
These are the diodes. If i use normal zener diodes, it will work right? Question is, can i get these values on normal zener diodes? - Loading...
- No more items.
Comment