How to install LED backlights in a Pioneer SX-727 (also applicable at least to the 828, the only difference is you have to remove the levers in addition to the knobs) - has been covered in the past, hopefully this adds to our collective knowledge as well.
Tools needed:
Steps:
1. Remove the wooden cabinet by removing the 4 screws holding it onto the body. (Not pictured)
2. Remove the knobs. The knobs can be pulled straight off.
Use a hex key to remove the tuner knob. There are two screws that need to be loosened. Use your 1/16” hex key.
The bass and treble adjustment knobs each are dual-knobs, each of which is set on different threads. I find that it’s easiest to remove the outer one first, and then the inner, instead of pulling on them both at once; during reassembly they can be pushed back on.
3. Remove the nuts beneath the speaker, volume, and input knobs. They are only on hand tight, time for the 12mm socket (on the left).
4. Remove the three screws holding the face plate onto the frame.
5. Remove the face plate and set it aside.
6. Remove the two screws holding the L-bracket which is clamping the tuner face to the frame.
7. Remove the two screws on the left of the tuner gauges, followed by the 4 plastic push-rivets holding the tuner face to the frame. The push-rivets easily push out from behind. I used a small paintbrush handle.
8. To access the lamps, slide the tuner face out to the left without disturbing the tuner dial.
9. Here are my 5 dead bulbs. They are 8V 300mA bulbs and they like to burn out. All 5 were dead in this 727, 3 of them were dead in my 828 which will make an appearance in the last picture.
Remove the bulbs WITH CARE. I found the best way was to use a small flat-head screwdriver from above to GENTLY massage them from the brackets. You don’t want to break any of these – clean up will be time consuming.
Cont ...
Tools needed:
- Small Philips head screwdriver
- Small flat head screwdriver (optional)
- Small hex tool: 1.5mm
- 12mm socket
- 5 fuse-type LEDs (I used these, $7 shipped for 10 via AmazonPrime: http://www.amazon.com/gp/product/B00KUI13C6?psc=1&redirect=true&ref_=oh_aui_detailpage_o02_s00)
- Glass cleaner & soft cloth to clean all the parts
Steps:
1. Remove the wooden cabinet by removing the 4 screws holding it onto the body. (Not pictured)
2. Remove the knobs. The knobs can be pulled straight off.
Use a hex key to remove the tuner knob. There are two screws that need to be loosened. Use your 1/16” hex key.
The bass and treble adjustment knobs each are dual-knobs, each of which is set on different threads. I find that it’s easiest to remove the outer one first, and then the inner, instead of pulling on them both at once; during reassembly they can be pushed back on.
3. Remove the nuts beneath the speaker, volume, and input knobs. They are only on hand tight, time for the 12mm socket (on the left).
4. Remove the three screws holding the face plate onto the frame.
5. Remove the face plate and set it aside.
6. Remove the two screws holding the L-bracket which is clamping the tuner face to the frame.
7. Remove the two screws on the left of the tuner gauges, followed by the 4 plastic push-rivets holding the tuner face to the frame. The push-rivets easily push out from behind. I used a small paintbrush handle.
8. To access the lamps, slide the tuner face out to the left without disturbing the tuner dial.
9. Here are my 5 dead bulbs. They are 8V 300mA bulbs and they like to burn out. All 5 were dead in this 727, 3 of them were dead in my 828 which will make an appearance in the last picture.
Remove the bulbs WITH CARE. I found the best way was to use a small flat-head screwdriver from above to GENTLY massage them from the brackets. You don’t want to break any of these – clean up will be time consuming.
Cont ...
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