I need schematic diagram of the printer RICOH 377SFNWX power supply board. (1/1)

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I need schematic diagram of the printer RICOH 377SFNWX power supply board.

01 Окт 2018 16:03 #1

Не в сети eletmoraes Живу я здесь Сообщений: 628	I need schematic diagram of the printer RICOH 377SFNWX power supply board. At my office , someone accidentally turned on 220v which caused the printer's power source to burn. It would greatly help the printer's electrical scheme.
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01 Окт 2018 17:29 #2

Не в сети master_tv Модератор Мастер по ремонту электроники Сообщений: 4984 Спасибо получено: 871	I need schematic diagram of the printer RICOH 377SFNWX power supply board. Take a photo of the power supply. Let's try to look for a malfunction together, but unfortunately there is no scheme. In general, the scheme for office equipment is extremely rare.
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10 Нояб 2018 16:44 #3

Не в сети eletmoraes Живу я здесь Сообщений: 628	I need schematic diagram of the printer RICOH 377SFNWX power supply board. I'm attaching photos from the RICOH 377 printer font card that was accidentally turned on at 220v. Apparently I just found the TVR271 burned. Replace this component and to test only the source board I connected in 110V. Measuring the voltages of the CN202 connector I found instead of 24V only 9V on pin 1 of the output Вложения: ...(1).pdf (137KB) ...(2).pdf (222KB) ...(3).pdf (144KB) ...pdf.pdf (248KB)
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10 Нояб 2018 22:01 #4

Не в сети eletmoraes Живу я здесь Сообщений: 628	I need schematic diagram of the printer RICOH 377SFNWX power supply board. The only thing I saw burned out is varistor 271. Replaces this component. I was hoping that it was only this component to be replaced because if it came to damage the RT7781A also would be a problem since this component could not find to replace. When you put the power supply card in the printer and turn it on, the machine has returned to working perfectly.
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10 Нояб 2018 22:07 #5

Не в сети eletmoraes Живу я здесь Сообщений: 628	I need schematic diagram of the printer RICOH 377SFNWX power supply board. Тема закрыта eletmoraes пишет: The only thing I saw burned out is varistor 271. Replaces this component. I was hoping that it was only this component to be replaced because if it came to damage the RT7781A also would be a problem since this component could not find to replace. When you put the power supply card in the printer and turn it on, the machine has returned to working perfectly.
	Администратор запретил публиковать записи гостям.

13 Нояб 2018 00:16 #6

Не в сети master_tv Модератор Мастер по ремонту электроники Сообщений: 4984 Спасибо получено: 871	I need schematic diagram of the printer RICOH 377SFNWX power supply board. Is the output voltage constant or changing?
	Администратор запретил публиковать записи гостям.

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I need schematic diagram of the printer RICOH 377SFNWX power supply board.

Если вы первый раз на форуме, рекомендуем прочитать ПРАВИЛА ФОРУМА. Чтобы создавать свои сообщения или отвечать на форуме необходимо ЗАРЕГИСТРИРОВАТЬСЯ.

01 Окт 2018 16:03 #1

I need schematic diagram of the printer RICOH 377SFNWX power supply board.

01 Окт 2018 17:29 #2

I need schematic diagram of the printer RICOH 377SFNWX power supply board.

10 Нояб 2018 16:44 #3

I need schematic diagram of the printer RICOH 377SFNWX power supply board.

10 Нояб 2018 22:01 #4

I need schematic diagram of the printer RICOH 377SFNWX power supply board.

10 Нояб 2018 22:07 #5

I need schematic diagram of the printer RICOH 377SFNWX power supply board. Тема закрыта

13 Нояб 2018 00:16 #6

I need schematic diagram of the printer RICOH 377SFNWX power supply board.