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DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Re: Panasonic DMR-ES30V vcr no power
« Last post by djkrasikn on November 27, 2022,07:59:39 »IC7402
Recent Posts
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DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Re: Panasonic DMR-ES30V vcr no power
« Last post by djkrasikn on November 27, 2022,07:58:01 »From the picture IC6302 pin 3 /on/ should turn it on, but I don't know where to look for it.
The ones in the picture refer to IC3002; QR4501; IC3906; IC7402 I measured the voltages when assembled and switched on
IC3002 pin 1 measured input 1.68 volts, pin 5 output 0.03 volts per case
IC3906 pin 1 measured input 5 volts, pin 5 output 4.7 volts per case
IC7402 pin 1 measured input 0.17 volts, pin 5 output 0.03 volts per case
QR4501 in one place is 12 and in the other two 0 per case
The ones in the picture refer to IC3002; QR4501; IC3906; IC7402 I measured the voltages when assembled and switched on
IC3002 pin 1 measured input 1.68 volts, pin 5 output 0.03 volts per case
IC3906 pin 1 measured input 5 volts, pin 5 output 4.7 volts per case
IC7402 pin 1 measured input 0.17 volts, pin 5 output 0.03 volts per case
QR4501 in one place is 12 and in the other two 0 per case
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DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Re: Panasonic DMR-ES30V vcr no power
« Last post by downunder on November 27, 2022,04:11:33 »What happens if you short IC6302 input (5.8V) to its output? Does the VCR function then? The videos tell me little that's useful.
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DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder / Re: Panasonic DMR-ES30V vcr no power
« Last post by djkrasikn on November 27, 2022,01:05:41 »Hi, what should I do?
I made videos
https://www.youtube.com/watch?v=hZwikma_E_U
https://www.youtube.com/watch?v=Q6478jU54vA
this model how it is made, only i have no error on the display
https://www.youtube.com/watch?v=yZhVsh4zBkA
I made videos
https://www.youtube.com/watch?v=hZwikma_E_U
https://www.youtube.com/watch?v=Q6478jU54vA
this model how it is made, only i have no error on the display
https://www.youtube.com/watch?v=yZhVsh4zBkA
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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.
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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
at the input of IC6302 pin 4 there is 5.8 volts
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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
I will check now
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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
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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
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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...
thanks...