Question about Yamaha HTR-5790 Receiver

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Thye amp has been idle and unplugged for over a year. Main power is switched on, when hitting power on the remote the amp starts for about 2 seconds then shuts off

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These have two issues that I always check. Check and see if your regulated voltages are all coming up . With thecover off go to the right side ,the side away from the power in cord, and check the coonector where you will see several different voltages listed. Make sure you are getting strong readings for the 12volt and 5 volt lines. Don't worry about the 3.3 volt line. I don't see that fail much. Other issue are capacitors in output circuit starting to fail. Vallues like 47uf are common. Larry's Electronics.

Posted on Apr 28, 2010

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Posted on Jan 02, 2017

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Why does TV turn off with the remote but won't stay off?


Greetings Charlotte,

All of the following assumes you are using the TV manufacturer provided remote ...
(ELSE: Get THAT remote, verify trouble & re-post fixya issue)

A few seconds is a really odd symptom (that's an IMMEDIATE cycle (2 power KEY HITS)... so before you rip into the electronic eye (Remote Recvr: tiny board at the control edge of your TV)... and/or change out the main power board...

(think... EVERYTHING else works remotely).

Try:
- unplug your set for at least ten minutes
- close the drapes (block sunlight from TV)
- find the receiver eye & remove ALL close obstructions
- check the remote & remove ALL covers/tape or soil.
- fresh batteries in the remote
- press power button as quickly as possible


Considering (I'm thinking)...

After MY studying HUMAN - MACHINE interface in a lifetime of trouble shooting... I came to know that when people become
VEXED by electronics... they tend to MASH buttons much-more deliberately (this can be a PROBLEM all by itself).

Critical timing on a button press used to be 500 to 900 milliseconds...

Meaning a longer press... went into special "handling" by program code (early software iteration (trial & errors).
((registered multiple KEY HITS = slower response, etc etc))

Your Remote Receiver is designed to register a continuous press (ON THE REMOTE) as ONE KEY HIT regardless of the DURATION... however

Any soil on the set (receiver) or remote (transmitter)...
visual objects, vases, mirrors... even sun-light can significantly change operation... as can TIRED BATTERIES (in the remote).

Failing all the cheap & easy suggestions above comment me back (+make & model) and I'll point you to procedures to get into your TV.

Hope this helps

TV Parts Universal TV Stands DLP Chips ShopJimmy

Jan 28, 2016 | Bush Televison & Video

1 Answer

Swicthed off with the remote last night, to day the red light on the left bottom side is off. Can't swicth on, the remote or the panel. help please.


Try unplugging it & while pushing the the main consul power button in for 30 seconds, that happen to me, it was just dead.. its like losing a friend, I was almost in tears, I did the unplug & hold power & it came back on. it might not work but its worth a try

Jun 01, 2015 | LG Televison & Video

1 Answer

My Sony XBR KV-42DRC700 WEGA TV will not turn on. When I hit the power button, the red light flashes 10 times, and then repeatedly flashes 4 times with a 1-2 second interval between each 4 flash seque


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

Oct 19, 2014 | Televison & Video

1 Answer

Hitachi 55" plasma TV. 5 years plus old, used a


Please let me know whats the model number of the tv so that I can tell you what the PCB LED diagnostics are pointing to. It sounds like a power supply or Main board issue so I would like to confirm which one of them it is.

Dec 22, 2011 | Hitachi 55HDS69 55 in. Plasma Television

1 Answer

Getting error code C11A4 can you help me fix this please?


Some basic reset procedures.

A. Open and close the front door.
B. Power off the machine, wait 30 seconds power on.
C. Power down the machine, unplug from the wall for 1 minute, plug in and power on.

D. 13.1 Trouble resetting
1. Turn OFF the Main Power Switch.

2. Turn Main Power Switch ON again while pressing the Utility/Counter key more than 10 seconds after.

3. Touch [Trouble Reset].

4. Check to make sure that [OK] is displayed and the it has been reset.

5. Turn off the Main Power Switch and turn it on again more than 10 seconds after, and make sure that the machine properly starts.

Nov 19, 2010 | Konica Minolta bizhub 250 All-In-One Laser...

1 Answer

No Picture, Indicator Light Green


If your TV is a year old or more, chances are that the power supply is starting to fail on your TV, causing all kinds of erratic behavior up to the point of not turning on anymore.
I service these power supplies since it does not look like there are many service parts available anymore. The only way to get this TV functional again is to repair the power supply to the component level.

May 11, 2008 | Protron PLTV-32 Television

1 Answer

IR 2000


Fuser error probally needs fuser replaced and the reset as below

try this

1. Hit Additional Functions Key
2. Hit # key
3. Arrow to number 7, Printer and hit Set
4. Arrow to number 4, Printer Re-Set and hit Set.
5. Yes, re-set printer (hit minus key - back arrow).
6. Unplug the machine and plug it back in.

or this is explaination of the error and required fix from service manual.


E0000000
The reading of the main thermistor does not reach 30°C 1 sec after the main
power switch is turned on. Or, it does not reach 70°C 2 sec thereafter.
Main cause The fixing film unit is faulty. The main thermistor has an open circuit. The
fixing heater has an open circuit. The main power supply PCB is faulty. The
DC controller PCB is faulty.
Caution To reset the error, execute the following in service mode:
COPIER>FUNCTION>CLEAR>ERR.
Action
1. Connector
Is the connector of the fixing assembly connected?
a. main power supply PCB (J8) <-> relay connector <-> heater
b. DC controller PCB (J320) <-> relay connector <-> thermistor
NO: Connect the connector.
2. Fixing film unit (thermistor)
Check the interval between pin 1 and pin 2 and between pin 3 and pin 4 of
the connectosr (4-pin) of the thermistor for electrical continuity. Is it ¥W
(open)?
YES: The heater has an open circuit, or the thermal switch is open. Replace the fixing film unit.
4. Main power supply PCB, DC controller PCB
Press the Start key. Is the drive voltage of the heater supplied by the connector J8 of the main power supply PCB?
Main heater: between J8-1 (FSR1) and J8-5 (FSR COM)
Sub heater: between J8-3 (FSR2) and J8-5 (FSR COM)
YES: The heater drive power supply is faulty. Replace the main power
supply PCB.
NO: The thermistor control mechanism is faulty. Replace the DC controller
PCB.

Nov 18, 2007 | Office Equipment & Supplies

1 Answer

No startup


For my FTR9965, it is necessary to physically unplug the
power cord from the box before you are able to enter the service codes. The sequence is:

1. Unplug the box for a few seconds.

2. Plug it in again.

3. Turn on the box with the front panel power switch. Wait for the green light to come on.

4. From the remote, quickly enter 062596 plus the info key.

5. A message comes on the monitor warning you that you could really screw things up if you don't know what you're doing, and do you really want to continue? If yes, hit any button on the remote. You only have a few seconds to respond.

6. The "stand alone" option is near the end of the "service" menu list. When you find it, change the "no" to "yes".

7. Go back to the main SAM menu, scroll down to "Store", and hit OK. I'm assuming this makes the "yes" selection permanent.

8. Enter "00" to exit SAM.

Aug 08, 2007 | Philips E-Box FTR9965 DTV Receiver

1 Answer

Receiver turns on and off in endless cycle


Its one of Three problems. The main b+ filter is defective, one of the standby power sources have a bad capacitor on the line, or theres a short in the main amp. section. Its probabvly going to cost you more then you would care to invest in a reciver thats around 5 to 6 years old. Its most likly time for you to upgrade to a suround sound dydtem with new fancy lights bells and whistles. Good Luck

Jul 29, 2006 | Onkyo TX-SV636 Receiver

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