A few more pictures...
I had to find another way to mount the ipod remote switches as my "button PCB" wouldn't fit on a complete tape chassis. After making a functional (but flaky) prototype with tact switches I bought more appropriate push button switches and built a new switch mount.
Here's the prototype :
The new version :
The new attachment mounted to the chassis :
I made a "breakout" board for the remote control pcb. On top is the audio output jack, the green screw block on the left is the input from the ipod trrs jack. The cord was hardwired to the circuit board but it broke twice while working with the thing and soldering on smt is a pita hence the screw block. On the right is a 6 pin header with the top 4 pins going to the buttons and the bottom 2 pins is the ground connection going through the function relay : if function switch is on TAPE, the circuit opens and the ipod stops responding to button presses. Conversely, the same relay disconnects the circuit to the leaf switch in the middle (with the red wires) so the tape player responds only when TAPE is selected.
Made a very simple driver circuit for the function beause connecting it directly would draw too much current
I installed my relays between the two circuit boards. There are convient "grooves" in the chassis where they sit perfectly. I took this picture before removing the dial cord in order to reinstall it properly, but you can see where the relays are...
Here's an insertion point for the AUX input :
The 9-pin header that connects both circuit boards is useful too. Here's the pins I identified. The other pins are most likely line output and preamp ouptut.
1 (pink) : tape (play) (R) <-- if you'd rather use the TAPE input instead of AUX for internal use, this is where to connect.
2 (red) : +12V power <-- This is the main power bus.
3 (white) : tape (play) (L) <--
4 (orange): tape +12V --> Goes +12V when function is on TAPE to power up the tape preamp.
6 (black) : GND
As I was screwing back the rear cover, the wall charger detached from it so I redid the power supply / charger from scratch, in a cleaner fashion and most importantly better glue. The iPod battery being old has limited autonomy, a full charge lasts for about 3 hours. I I find it to affect my usage habits I may insert a rechargeable "power bank" in line with the charger some time in the future.
So that's about it, I hope this can be helpful or inspire others...
I had to find another way to mount the ipod remote switches as my "button PCB" wouldn't fit on a complete tape chassis. After making a functional (but flaky) prototype with tact switches I bought more appropriate push button switches and built a new switch mount.
Here's the prototype :
The new version :
The new attachment mounted to the chassis :
I made a "breakout" board for the remote control pcb. On top is the audio output jack, the green screw block on the left is the input from the ipod trrs jack. The cord was hardwired to the circuit board but it broke twice while working with the thing and soldering on smt is a pita hence the screw block. On the right is a 6 pin header with the top 4 pins going to the buttons and the bottom 2 pins is the ground connection going through the function relay : if function switch is on TAPE, the circuit opens and the ipod stops responding to button presses. Conversely, the same relay disconnects the circuit to the leaf switch in the middle (with the red wires) so the tape player responds only when TAPE is selected.
Made a very simple driver circuit for the function beause connecting it directly would draw too much current
I installed my relays between the two circuit boards. There are convient "grooves" in the chassis where they sit perfectly. I took this picture before removing the dial cord in order to reinstall it properly, but you can see where the relays are...
Here's an insertion point for the AUX input :
The 9-pin header that connects both circuit boards is useful too. Here's the pins I identified. The other pins are most likely line output and preamp ouptut.
1 (pink) : tape (play) (R) <-- if you'd rather use the TAPE input instead of AUX for internal use, this is where to connect.
2 (red) : +12V power <-- This is the main power bus.
3 (white) : tape (play) (L) <--
4 (orange): tape +12V --> Goes +12V when function is on TAPE to power up the tape preamp.
6 (black) : GND
As I was screwing back the rear cover, the wall charger detached from it so I redid the power supply / charger from scratch, in a cleaner fashion and most importantly better glue. The iPod battery being old has limited autonomy, a full charge lasts for about 3 hours. I I find it to affect my usage habits I may insert a rechargeable "power bank" in line with the charger some time in the future.
So that's about it, I hope this can be helpful or inspire others...