Panasonic SA-HT820V Home Theater System

[R_J]

Re: Panasonic SA-HT820V Home Theater System

Have you tried loading a tape to see if it turns on? There may be a problem with the power button command not getting to the main micro, ie: another cable issue?

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

Have you changed the position of the mode switch or is this where it was when the mechanism was removed? It is in the wrong position, The pin should be where the arrow is pointing and the mechanism gear when aligned properly will have the pin go into the slotted hole in the gear. Be careful when lowering the mechanism so that the drum motor plug is not damaged.

Ok, the F04 isn't popping up anymore after moving the pin. Thank you. Still won't power up when I power, just shows the clock. Something in the power board?

[R_J]

Re: Panasonic SA-HT820V Home Theater System

Have you changed the position of the mode switch or is this where it was when the mechanism was removed? It is in the wrong position, The pin should be where the arrow is pointing and the mechanism gear when aligned properly will have the pin go into the slotted hole in the gear. Be careful when lowering the mechanism so that the drum motor plug is not damaged.

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

With the mechanism out, can you take a picture of the circuit board which would be just below it? I would like to see the position of the mode switch.
It does look like the mechanism is slightly off. The white plastic between the capstan motor and the idler drive wheel has a small hole in it and it seems to be correctly aligned with the hole in the chassis. at this point the wheel with the 4 small holes and the elongated hole should be a bit more counter clockwise. The elongated hole should be straight left of the gears center pin. You should be able to spin the loading motor to move this gear.
Then the mode switch should have a pin that will fit into that elongated hole when the chassis is re installed (carefully)
The original problem might be that the mode switch needs to be cleaned. as the contacts can get tarnished over time from lack of use.
Here is a picture of what it should look like in the correct position.

Dont know why its posting the pics sideways. But the front is facing right if it matters. And a closer look at what I believe you are referring to.

[R_J]

Re: Panasonic SA-HT820V Home Theater System

With the mechanism out, can you take a picture of the circuit board which would be just below it? I would like to see the position of the mode switch.
It does look like the mechanism is slightly off. The white plastic between the capstan motor and the idler drive wheel has a small hole in it and it seems to be correctly aligned with the hole in the chassis. at this point the wheel with the 4 small holes and the elongated hole should be a bit more counter clockwise. The elongated hole should be straight left of the gears center pin. You should be able to spin the loading motor to move this gear.
Then the mode switch should have a pin that will fit into that elongated hole when the chassis is re installed (carefully)
The original problem might be that the mode switch needs to be cleaned. as the contacts can get tarnished over time from lack of use.
Here is a picture of what it should look like in the correct position.

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

The capstan drives the takeup/supply reels that is why they are spinning, the drum will also be on at the same time.
It could be that the loading basket is jammed and causing the mechanism to not complete it's cycle, I would remove the loading basket and re alighn it with the lower gear.

Where is that located? Here's a pic of underneath if it's there.

[R_J]

Re: Panasonic SA-HT820V Home Theater System

The capstan drives the takeup/supply reels that is why they are spinning, the drum will also be on at the same time.
It could be that the loading basket is jammed and causing the mechanism to not complete it's cycle, I would remove the loading basket and re alighn it with the lower gear.

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

While the F04 error is displayed, push the STOP button, does the display change? It seems like the fault is with the vcr section, so far anyway, try loading an old tape, something that is not valuable in case it eats it.

No, Stop doesn't do anything. I put a tape in and it doesnt do anything, just stays on F04 and won't eject it.

When i plug it in, these start moving then stop and F04 pops up.

[R_J]

Re: Panasonic SA-HT820V Home Theater System

While the F04 error is displayed, push the STOP button, does the display change? It seems like the fault is with the vcr section, so far anyway, try loading an old tape, something that is not valuable in case it eats it.

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

What ever works, finger nail will work, just fold it back to where it should be and carefully re insert it into the plug, and like I said, make sure it is in the right way or you will get no connections at all.

I folded the back the best I could. Better than it was. Now I'm getting a F04 error code. After looking it up supposedly means MECH STOPPED DURING UNLOADING FROM DRUM.

[R_J]

Re: Panasonic SA-HT820V Home Theater System

Is there a certain tool to use or can you just use your finger tips?

What ever works, finger nail will work, just fold it back to where it should be and carefully re insert it into the plug, and like I said, make sure it is in the right way or you will get no connections at all.

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

You can straighten out the foil and carefully reinsert it into the plug, just make sure it is in the correct way.

Is there a certain tool to use or can you just use your finger tips?

[R_J]

Re: Panasonic SA-HT820V Home Theater System

Connects under the CD tray here.

You can straighten out the foil and carefully reinsert it into the plug, just make sure it is in the correct way.

[nomoresonys]

Re: Panasonic SA-HT820V Home Theater System

Ok, I didn't see your edit, might need to repair/replace that cable to at least get back to where you were, there's another good video from NorCal where he's sniffing out bad caps:

https://www.youtube.com/watch?v=3S-3J-FySzc

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

This could be a problem, which cable is it? what plug numbers does it connect to? If this one is damaged, the ones from the dvd mech could also be damaged. If that is the 14 pin cable to to the cd loading circuit, CN1 the damaged ends are POS Sensor and Bottom switch, and the one on the end is either pin1 (+7.5v) or pin 14 (Play_sw)

Connects under the CD tray here.

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

I think the clue in that video was the clicking.

Mine doesn't click. Don't think it's a similar issue, that one had no power at all. Mine has some, cause the clock comes on. And I'm not finding that part that he replaced.

[R_J]

Re: Panasonic SA-HT820V Home Theater System

No. It was before. I'm pretty sure I put everything back in and in the correct spot. As you can see in the post where I posted pics, everything was lighting up. Now I just get this.

There is one connector that looks like a little bit of the ending scratched off. Can that cause anything?

This could be a problem, which cable is it? what plug numbers does it connect to? If this one is damaged, the ones from the dvd mech could also be damaged. If that is the 14 pin cable to to the cd loading circuit, CN1 the damaged ends are POS Sensor and Bottom switch, and the one on the end is either pin1 (+7.5v) or pin 14 (Play_sw)

[nomoresonys]

Re: Panasonic SA-HT820V Home Theater System

I think the clue in that video was the clicking.

[nomoresonys]

Re: Panasonic SA-HT820V Home Theater System

Don't know if you have same problem or not but here's a fix it video from NorCal:

https://www.youtube.com/watch?v=2IX45y_Ml4g

[CapsDude]

Re: Panasonic SA-HT820V Home Theater System

Does it click or anything when you try to power it up?

No. It was before. I'm pretty sure I put everything back in and in the correct spot. As you can see in the post where I posted pics, everything was lighting up. Now I just get this.

There is one connector that looks like a little bit of the ending scratched off. Can that cause anything?