Technics sa-eh790 will not come out of standby

New remote for around £12.
https://www.ebay.co.uk/itm/NEW-RM-Series-Replacement-HiFi-Remote-Control-for-Technics-SA-EH780-SAEH780-/291862138581

First do you see a light indicating that the TV has power? There are two power buttons on the TV (the main power and the regular power button). The red standby light will light up when the main power switch is on. This indicator is just to the left of the remote I/R sensor. You can find the main switch on the bottom front of the tv (it is under the tv forward of the stand). Turn on the Main power if it is not on. Then try the power button on the control panel of the TV again.

Does the standby light change color or blink? (Red is standby, orange is power savings (no signal), blue is on.) If the main switch is on and the standby light doesn't come on, the TV has a problem at the power supply. Try unplugging the unit for a bit (at least 30 seconds) and then plugging it back in. This will reset the internal circuitry. If you see a blinking light, then the TV is reporting a self-test failure. I do not know the codes for this model Hitachi Plasma TV.

The manual for the Hitachi P50H401 TV is available from Retrevo: http://www.retrevo.com/support/Hitachi-P50H401-TVs-manual/id/1233ci869/t/2/ . You will need to enter a code to access the pdf.

I'm assuming you don't have one of the special versions that were intended for large audiences that were only controlled by remote (no control keys on the front of the TV). Remotes.com has the original remote or a substitute remote if you need it. See http://www.remotes.com/remotes/servlet/rs?a=gmi&uuid=13104063628240&smodel=P50H401&brand_pn=HITACHI_P50H401 .

I hope this helps.

Cindy Wells

You will need those 2 u shape metal pieces to bridge the preamp out to the main amp in. Larry's Electronics [email protected]

Switching on/off the Set:
• Press the main power button to switch on/
off the TV.
• If the set is on standby (indicator is red),
press the Power button on the remote
control to switch on set.

before throwing out your old amp open it up and check the processor inside the amp its a little black thing behind the fan. if that dont work then contact me again. and i will suggest more things. but if you really want to replace it would you give me your old amp please and here is a link to a amp for you. i know its correct as i have the same system. I LOVE TECHNICS PRODUCTS. http://cgi.ebay.co.uk/Technics-SA-EH790-AMPLIFIER-/130501062833?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item1e627830b1#ht_646wt_1141

There is a failure on one of the circuit boards, and or the power supply itself. The main uPC, or the power supply controller is putting the main power supply in to protect mode.

You would have to send the set for factory service to resolve this issue.

Jerry G.

The flashing light indicates a short circuit inside the power supply circuitry. This type of repair is not a DIY without a multimeter, desoldering iron and hand soldering skills. I repair these power supplies, if you need further info write to [email protected]

Here is how I reset. Key terms to identify: Main unit, remote unit, transmission card, reset button on remote unit. 1. Unplug both units and remove transmission card from rear of Main unit. 2. Wait five minutes. Insert transmission card in rear of Main. 3. Turn on both units. If units do not communicate, there will be a solid red indicator on remote unit...In this case continue with 4. Use remote and turn off main. 5. Point remote at main and enter the following four digits, holding each down for about a second:  0   1   3   5 6. The main unit should turn on. 7. With remote unit on, press and hold down the reset button for 5 seconds.

Not sure this will work for you, but it did for me. Really simple. Unplug the unit for 5 minutes. Started right up.