24V AC Amplifier (1 Viewer)

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Some pics from @jblueridge. Looks like this is a slightly different version @Engineer8000 it's got a 7 position primary connector with a single 1/4" spade off to the side. The harness I have is a single 9 position connector.

ac amp (1).JPG


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From @jblueridge:
The ic is. Toshiba t2333 8703k Japan
The printing is on the side facing the lone 1/4” quick disconnect terminal.

Transistor is more cryptic.
D667
C
6E2

The large main connector has 7 flat spade-like pins.
4 in the bottom row, 3 above.

When sun shines again I’ll get a macro photo.
Yes, from my BJ74.
Denso # 077300-0860
 
Main connector pics
main connector (1).JPG
main connector (3).JPG

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Both the IC and transistor are common denso components. I will work on making a schematic based on these photos. I have the parts to reproduce this. Thank you very much for posting.
 
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Some pics from @jblueridge. Looks like this is a slightly different version @Engineer8000 it's got a 7 position primary connector with a single 1/4" spade off to the side. The harness I have is a single 9 position connector.

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Can you tell me how many wires are actually connected in your case? Toyota had a habit of using connectors with more terminals than required. Do you have the schematic of the AC amp external connections for your truck? Can you post a picture of your 9 way connector, thanks.
 
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@Engineer8000 I'll take a look when I get home this weekend. I have the FSM as well so we can figure out the full harness most likely.

Also @jblueridge says he's having troubles with his, his AC amp is currently overridden. I guess we'll want to figure out the pinout for him as well and scope his harness to see what's acting up.
 
I have an FSM copy and it gives instructions on how to test.
But that makes me like a monkey with a multimeter.
What I’d like to know is how this circuitry is supposed to work.
There is some evidence of wire/electrical tampering on my truck.
 
I have an FSM copy and it gives instructions on how to test.
But that makes me like a monkey with a multimeter.
What I’d like to know is how this circuitry is supposed to work.
There is some evidence of wire/electrical tampering on my truck.
Can you post a copy of the applicable pages of the FSM related to the AC amp for your truck?
 
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@Engineer8000 I'll take a look when I get home this weekend. I have the FSM as well so we can figure out the full harness most likely.

Also @jblueridge says he's having troubles with his, his AC amp is currently overridden. I guess we'll want to figure out the pinout for him as well and scope his harness to see what's acting up.

Can you post a copy of the applicable fsm pages for the ac amplifier that you have? Thanks.
 
sorry, can you also tell me the values of the other two ceramic caps, I see the one is 0.1uf (104) but need the other two. Thanks.
 
So the black cylinder and these disks are 2 kinds of capacitors?

board 1.JPG
 
Pages from manual. maybe too many.
 

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Thanks for the information. The black cylinder cap is an aluminum electrolytic, the small discs are ceramic. There are many other types too. I have not checked the connector terminations yet, but the good news is this is simply an FJ62 AC amplifier with a few different resistors. The circuits are the same with a few resistors changed to deal with the 24v. And a 24V relay.

Edit, the connectors are wired different. This can be fixed with a short adapter harness. I am curious to see how the @repentsinner connector is wired.
 
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