It seems a number of people are experiencing problems with the HDMI in the new A/V receivers.
If you have experienced any of these issues you may have a bad HDMI board in A/V receiver.
HDMI Stereo troubleshooting tips
What HDMI cable do I need? Obviously not every everyone need 2.0 HDMI cable and 1.4 may work ok. There were numerous changes was made to support for higher frame higher resolution wide aspect ratio and more. Hdmi cable problems symptoms
If works ok it-is most likely the HDMI board bad in your receiver.
Connect HDMI cable directly to TV bypassing the audio receiver and see if it works.
Cleaning vintage stereo receivers and amps 1970 to 1980. It is not a small and easy job. Even basic cleaning will take you 2-3 hours and most likely will not be done correctly. If you are not experienced do not start because it looks easier but becomes complicated very fast.
How to Clean Vintage Stereo Equipment
Before you start cleaning controls and switches turn off the unit and unplug electrical cord!
Be careful electrolytic capacitors may stay charged even after has been unplugged for long time which can shock or burn your hand or damage other components
Avoid using products on your stereo equipment that are not intended for use on plastics in your stereo like WD-40.
Warning never ever spray cleaning solution on boards when unit is turned on you will short circuit and have expensive repair bill.
You can do a good job or destroy your receiver or amp very easily and electrocute yourself.
Dust will not affect performance of your receivers or amps and oxidation will. 30-40 year old vintage receiver need extensive DeoxIT D5 cleaning and Deoxit Faderlube for lubrication.
You can cosmetically clean unit using compressor, compressed air, denature alcohol preferably 91 to 99% and q-tips to clean parts and DeoxIT D5 (red ) contact cleaners to clean switches and DeoxIT Faderlube F5 (green) for lubrication
Remove top and bottom put screws in small bags and attach related screws to top and bottom covers so you put back right screws to right places.
You have to remove knobs and front panel for cleaning and create access to controls and switches. Note some knobs secured by screws especially tuning and volume knob you need long Allen wrench 1.5mm-2.5mm.
Do not force because you may break control or switch. Inspect careful and if you see a hole on the side of knob you have a security screw inside.
Cleaning vintage stereo receivers
Can or 2 of compressed air or Compressor to blow dust.
Small to medium paint brush to clean dust inside you must be very careful not to bend or damage any parts.
Here I am ready for cleaning Pioneer SX-1250 receiver controls and switches.
Note you need Allen wrench 2mm to remove knobs and front panel to get excess to controls and switches each model deferent so you most likely need remove control panels.
Note do not spray in front off controls it will never solve the problems.
For Controls and Switches you need DeoxIT D5 cleaner it is general purpose cleaner.
For all metal surfaces with oxidation and corrosion.
Use DeoxIT® to dissolve contamination, as well as lubricate and protect the surface DeoxIT D5® has approximately 20% cleaning action.
If you use DeoxIT D5 follow by Faderlube F5 on pots.
Sliders and faders use only Fader F5-Series is a precision lubricant specifically formulated to improve conductivity and lubricate conductive plastic and carbon compound faders and similar components.
Note you do not need much and must be sprayed only in controls and switches you spray on top you see small holes and inside of shaft and push in and out.
If volume control sealed soak on top and rotate after. Let seat for couple hours and repeat again repeat 2 to 3 times and let seat over night clean lust time and assemble partially together for test.
Do not spray DeoxIT or any cleaner on boards tuning capacitor or you have problems and smoke!!
Cleaning vintage stereo receivers and repair is ours specialty give us a call we can help!
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Vintage stereo receiver It is harder to findbut it not impossible.
Best places to find vintage stereo receiver is garage sales, thrift stores, estate sales, parents and grandparents.
From our experience people who bought vintage stereo receivers do not always got good deal it is chance you take. Good vintage stereo receiver is not sold cheaply. Now a day’s most people know the value of good vintage receiver. The only problem when you are buying is you have no idea if it-is in good condition or not and you may overpay.
So if the unit is somewhat working that is a good sign because it may not require major expenses.
Much emphasis primarily through the internet and YouTube suggests that in order to have good quality sound from your vintage receiver you must replace “all” capacitors is not true. “If it is not broke do not fix it”.
Most repairs may require a replacement of electrolytic capacitors in the power supply, noisy transistors in audio path, example 2sa725, 2sa726,2sc1312, 2sc1313 in preamp circuits, replace lamps if needed, cleaning speaker relay, and cleaning/DeoxIT and lubing the controls and switches.
It definitely depends on the unit condition. Receiver that stored for many years most likely will need less work.
Others were running constantly in a closed environment which makes many capacitors go bad capacitors do not like heat.