Onkyo Integra TA-2800 Blinking play situation

 
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Onkyo Integra TA-2800 Blinking play situation

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Gepostet: 08.03.2013 - 14:18 Uhr  ·  #1
hello,



Mein Deutsch ist einfag nicht gut genug.



I am new to the forum (I am from the netherlands, niederlande, eindhoven) and would like to share my experience with the 2 Onkyo Integra models TA-2800 I have.



I have read a post of a Blinking play situation caused by a worn capstan belt.

Ok, thanks to that post I got to repair my Onkyo_1 only occasionally it seems the belt drifts a bit

and the blinking play situation starts again.

By removing the cover and realign the belt again, the cassette runs ok again. It still shows problematic during the natural days.

I now re-aligned the belt by opening the cover 5 or 6 times.It should stay this way right? I have cleaned the alu flywheels with isopropyl.

My Onkyo_1 runs OK for 7 days on.





Before this my Onkyo_1 suffered from a careless act by hitting

the AMCS (FF) and the REW key simultaneously resulting in a immediately halt of the cassette (Tilted)

and the play key started to blink.

The option to eject the cassette simply isn't there. The lid is locked.

I brought it to a repair shop but they couldn't open it.



I have downloaded the specs of the TA-2800 and after carefull study I noticed that part nr. 58

pushed in, part nr. 31 lifted up same time, the eject was released and the door got unlocked.

However the tape was still stuck. I managed to get the cassette door off, unscrewed 213 so the metal frontdoor 85 came off.

The bridge (PL/REC, erase head) still freezed in the up movement with the tape between capstan spinner/idle.



So, I used a heated x-acto knive to cut the plastic backside of the tape in two after unscrew the frontcase of the tape (and removing

all which was of no use anymore).





After removing the cassette the door now came free to move.

I plugged in the 220 V, power on and the Bridge came down and that was it!

I got a new (used) tape, locked the door, pressed the Play key and it started to play!

All seemed to work. I will tell you that this Onkyo_1 has a new belt installed.





Now, another Onkyo 2800 which I will name Onkyo_2 broken down by the same careless act years ago and the tape became all spaghetti

in the cassettewell.

So, I decided to give it a go and handle this _2 the same way i did with _1 (repaired one -sofar-).

I installed new belts and experienced the same mechanical issues while opening the cassette door

by using the eject button (that part nr. 58 pushed in, part nr. 31 lifted up same time, the eject was released and the door got unlocked).

I plugged in the 220 V, power on and the Bridge (pl/rec Heads) came NOT down .the play led started to blink,

the digital counter started to run from 0000 - 0013 (my lucky number!) and the right play dish spinning during this short moment.

The counter normally shows seconds or minutes when the tape plays (Rema/Cons) but in this scenario the counter runs

faster and the 13 'seconds' are like 2 really.





>>I think its Onkyo's design here really:

The AMSC(forward) and REW keys close to eachother, once a miss hit/touch on both, the computer Tilts or something like that.









Now my Question: Anyone with the same experience? Why did it worked for deck _1 and failed working with the other?









02-03-2013

smaller belt (part nr. 46 is replaced in Onkyo_1 and Onkyo_2.







02-07-2013

>>To have the head carriage down (which will stop the play led from blinking)

might be due to

"Open the deck and look for the copper colored leaf switches (above the plastic comb)

that get corroded / dirty over the years.

Clean them with deoxide or similar and your are most likely good to go."



>>I will measure the Bulb lights resistance and V on PCB 709a >> 12.9 V.

>>I will clean the copper contacts (as i did with Onkyo_1 too) >>Done but without result, heads are still in freezed position. Leaf switches: K0,K1, K2,

MTL SW, (metal)

HIGH SW, (Chrome)

COM,

CASS. INN,

COM and

REC INH (recorded inhibited)



No voltage was measured on the Sankyo Reel Motor which controls the mechanical parts to start the play/rec/pause momentums.

Assist motor should read 3~6 V, run by Chip Q706 V_CC = 5 V

>>>Assist/Hubmotor; When the condensator is desfunctional it shouldn't matter (Rhi).







>>Will check the assist motor and mechanical position switch #23 ->High, #24 -> Low, #25-> High (use plastic adjustment screwdrivers between the leaf contacts enzo), this should result in STOP or break/Reset.



While this I also need to act asif there is a tape in it, so 3 other contacts, cassette lid closed.

Somewhere the solution is here halfway. I will also check in what position it is now.







02-08-2013: Wheat bulb (white) light 3mm 12 V. (actual specs show 12.9 V) exchanged.





++++

Cassettes head carriage will not come down.play blinking, counter reads 0000 -> 0013.

What solution is there?







Gr.

Duncan
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Re: Onkyo Integra TA-2800 Blinking play situation

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Gepostet: 08.03.2013 - 14:56 Uhr  ·  #2
Ich lese hier:

myphp/viewtopic.php?t=2678&sta…highlight=





Die federcontacten habe ich gereinigt. Ich habe plastic card benutzt um

die kontakten zu brechen.

Einmal die blinking play verschwunde aber die kopf will nich nach unten gehen weil die hubmotor kein assist hat.



STOP

-K2 -> Pin 23 - HIGH

-K1 -> Pin 24 - LOW

-K0 -> Pin 25 - HIGH





PLAY -PAUSE

-K2 -> Pin 23 - LOW

-K1 -> Pin 24 - LOW

-K0 -> Pin 25 - HIGH





PLAY

-K2 -> Pin 23 - LOW

-K1 -> Pin 24 - HIGH

-K0 -> Pin 25 - LOW



FF, REW

-K2 -> Pin 23 - HIGH

-K1 -> Pin 24 - HIGH

-K0 -> Pin 25 - LOW
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Re: Onkyo Integra TA-2800 Blinking play situation

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Gepostet: 11.03.2013 - 10:24 Uhr  ·  #3
[/img]



As aspected: the result after a RESET (keepin pressing RESET while switching on power voor 15 seconds).



I have set the mechanical postion back to PLAY the Deck works now.

All systems are clear, Blinking situation has solved for this matter.



[/img]



Leafswitches k0 k1 and k2 control the Lo-Hi via the camshaft of the assist motor.

RESET = L-H-L (PLAY) L-L-H (PLAY-PAUSE) H-L-H (STOP) H-H-L (REW/FF)
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Re: Onkyo Integra TA-2800 Blinking play situation

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Gepostet: 22.01.2018 - 08:51 Uhr  ·  #4
Neu!



Hi, to whom it is of interest,


it happened again, my second TA-2800 deck suffered from a tilt situation as i hit by accident, record and pause. The red Pause light started to blink.
No REW, no FF.
Hit the play button which activated for a second, stopped and my tape was.

This time, i decided to trust on my instinct.
I opened the hood, switched power on, and unplugged both connectors which feed the startmotor and mechanical drive sginals from the processor.
I disconnected the left and right, put them in again, left first. Switched power off.
Switched it back on and the deck started in a Reset-mode.

The deck touchbutton-functions work accordingly.



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