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[DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder]

61

DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Re: Panasonic DMR-ES30V vcr no power

« Last post by downunder on November 27, 2022,00:05:37  »

What about the switching voltage that is supplied by IC6001 to turn it on. There'll be no output without that.

[DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder]

62

DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Re: Panasonic DMR-ES30V

« Last post by djkrasikn on November 26, 2022,13:54:09  »

I just checked IC6302 pin 1/output/ is not on ground
at the input of IC6302 pin 4 there is 5.8 volts

[DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder]

63

DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Re: Panasonic DMR-ES30V

« Last post by djkrasikn on November 26, 2022,13:43:22  »

thanks
I will check now

[DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder]

64

DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Re: Panasonic DMR-ES30V

« Last post by downunder on November 23, 2022,02:56:41  »

 
IC 6302 is merely a switch for the 5V supply to IC 2501. The switching voltage comes from pin 75 of IC6001, the system control/servo/timer IC. You need to determine if the switching voltage is present, if IC6302 is operational or if the output of IC6302 is shorted to ground.                         Bruce

[LCD TV forum]

65

LCD TV forum / Re: Samsung LW20M21CP

« Last post by downunder on November 23, 2022,02:35:05  »

IC101 is an AP1117D-33A surface mount 3 pin regulator. I'll upload the service manual  to the downloads area.                Bruce

[LCD TV forum]

66

LCD TV forum / Re: Samsung LW20M21CP

« Last post by cdg on November 22, 2022,18:34:47  »

Same problem here, found service manual, but cant read the part needed...
thanks...

[DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder]

67

DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Panasonic DMR-ES30V vcr no power

« Last post by djkrasikn on November 22, 2022,14:20:59  »

hello
I sent to service and they fixed the display but the vcr couldn't fix it. After a thorough examination I was able to understand that the vcr mechanism is driven by ic2501 /BD6904FP/. On BD6904FP spec leg 1/21 - 12v measured 12.6v, leg 7 - 17v measured 16v and leg 19 - 5v here comes the problem measured 0.1v. This pin 19 comes from ic6302. on ic6302 at the input (4) 5.8v and at the output (1) 0.1v comes out. where does the problem come from?
i have the schematics i can send them

[LCD TV forum]

68

LCD TV forum / Re: lg60uf770v

« Last post by call me al on November 21, 2022,15:02:02  »

Hi Bruce ,i was afraid of that but thanks for your reply

[LCD TV forum]

69

LCD TV forum / Re: lg60uf770v

« Last post by downunder on November 21, 2022,02:18:20  »

Hi Al, seems to be an issue with the UF series. No work around as far as I know.                      Bruce

[LCD TV forum]

70

LCD TV forum / lg60uf770v

« Last post by call me al on November 20, 2022,15:51:58  »

Hi all,have this lg 60uf770v its stuck on the lg logo.Is it possible to resolve this without having to replace the main board.Any suggestions very welcome.Thanks Al