How can I operate my Panasonic SC-HTB8K 80-watt Bluetoot Soundbar using just the tv remote control?

The versus Google query is useful

https://www.google.com/search?q=Panasonic+SA-AK750+vs+Panasonic+SC-AK750

which leads to

https://www.kleinanzeigen.de/s-anzeige/panasonic-sa-ak750-hi-fi-stereo-tape-usb-5x-cd/2580715678-172-2463
and
https://www.bhphotovideo.com/c/product/487963-REG/Panasonic_SC_K750_SC_AK750_660W_5_CD.html

And the manual explains they are the system and the main unit

System (model name) SC-AK750
Main unit (designation) SA-AK750
Front speakers SB-AK750
Subwoofer SB-WAK750

Here is the manual

Panasonic SC-AK750 Operating Instructions Manual

ManualsLib https://www.manualslib.com > manual > Panasonic-Sc-...

View and Download Panasonic SC-AK750 operating instructions manual online. Philips CD Stereo System Operating Instructions. SC-AK750 stereo system pdf ...

CD Stereo System

Panasonic https://www.panasonic.ca > ALL > rqtv0200-p
These operating instructions are applicable to the following system. System. SC-AK750. Main unit. SA-AK750. Front speakers. SB-AK750.

Here is the remote control for it.

https://www.google.com/search?q=panasonic+sa-ak750+replacement+remote+control

..

How to Program a Panasonic Light Tower Remote Control

https://www.techwalla.com > Tech Support > How To

The Panasonic Light Tower is a VCR remote that allows you to control the TV and other components of your home entertainment system.

Is there a AV output on the TV ? Usually either a pair of RCA;s (white/red) or a 3.5mm headphone jack. Try that

Hello, Sandra -

Possibly. See the information on this web page:
https://codesforuniversalremotes.com/sanyo-sound-bar-remote-control-codes/

Scroll down the page to the information on using the remote for DirectTV or ATT and follow the instructions for programming the DirectTV remote control to operate your Sanyo soundbar.

Another option: Purchase a replacement Sanyo soundbar remote control. See a list here:
https://tinyurl.com/ybyuw7cu
You will need to choose a replacement remote control which matches your Sanyo soundbar model.

Best wishes.

Power off the television and unhook the power connection. Wait a minute reconnect it. Try again.

If you have connected the optical cable then you should be able to select AV using the TV remote, keep pressing until you hear sound from soundbar!

Hi, you will need to access the operating manual for your directv remote. It will have codes in the remote. but most likely it will not work your soundbar as most Directv remotes do not have codes for them, and do not support them. You are stuck using the soundbar remote for your soundbar. The only option you can do is to purchase a learning remote from the store that can program to your directv box and your TV, and you can learn the volume keys to your Maxell sound bar.

Hi,
here it is some tech info ..it is a fair price for 2.hand unit...
as ebay has the similar prices..it seems to be a good deal...

Take care and please Remember to rate/vote and give me 4 Thumbs Up
for Helping out the Community :)
Hope this helps!
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Product Features and Technical Details

• Dolby Digital, Dolby Pro Logic II, and DTS-decoding home theater receiver with 5 speakers and a powered subwoofer
• 35 watts per channel x 4 "tallboy" speakers, 140 watts for the center channel, and 150 watts for the subwoofer
• High-resolution DVD-Audio playback; JPEG, MP3, and WMA CD playback
• Magnetic shielding for distortion-free placement near a TV or computer monitor
• Includes digital FM/AM tuner and a universal remote control

Technical Details

• Brand Name: Panasonic
• Model: SC-HT900
• Output Wattage: 390
• Component Type: Home theater system
• Audio Output Mode: Surround Sound
• Surround Sound Effects: Super Surround Sound
• DVD Type: DVD changer
• Built In Decoder: Dolby Pro Logic II, Dolby Digital, DTS decoder
• Remote Control Description: Universal remote control
• Optical Digital Input: Yes
• Audio Input: None
• Tuner Technology: Digital
• Radio Bands Supported: AM/FM

Make sure your remote has all new batteries. It might only be running a partial side of remote. Test the battersies?