Does anyone have a 24V AC amplifier they would be willing to send a picture of top and bottom of the circuit board? Thanks in advance.
24V AC Amplifier
- Thread starter Engineer8000
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
I have 24v HJ60. Where would this be located?
- Thread starter
- #3
It would be in the evaporator assembly, you will see a wire harness leading to it.
@WharfRat If your HJ60 is left-hand drive, it should be in a little pocket on the evaporator box just below the glovebox, easily visible from the footwell. Can see this here: 24V AC Amplifier PN? - https://forum.ih8mud.com/threads/24v-ac-amplifier-pn.1275382/post-14280107
Last edited:
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.
- Thread starter
- #7
Thank you for posting. Can you tell me the number on that 9 pin IC and the transistor? Thanks.
Main connector pics
- Thread starter
- #10
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.
Last edited:
- Thread starter
- #11
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.
Last edited:
@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.
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.
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.
- Thread starter
- #14
Can you post a copy of the applicable pages of the FSM related to the AC amp for your truck?
Last edited:
- Thread starter
- #15
Can you post a copy of the applicable fsm pages for the ac amplifier that you have? Thanks.
I’ll be able to do that Fri or Sat.
- Thread starter
- #17
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?
Pages from manual. maybe too many.
- Thread starter
- #20
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.
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.
Last edited:
