SAE 8000 Tuner Schematics

[QSerraTico_Tico]

Hi Guys,
It appears that the replacement LED Displays ( LTS-3401 ) are no longer available from Jameco. I have checked with Digikey, Newark and several other popular suppliers but to no avail. Does anyone have any ideas where to purchase these displays?

Thanks,
Dennis

Mouser part# 859-LTS-3401LG
Is green colour however. Not a problem for me.

 

[Rack System]

Wow! Thanks for posting and sharing this info! 😉

Folks,

I have completed the rework of my SAE 8000 FM tuner. Basically, I did the following:

1) Replace the old DL-747 (a lot of segments were burnt out) with new LITE-On 3401. Result is stupendous and will only cost you $4.40 with Jameco. The original unit had already the new board with 270 ohms resistors marked on the PCB. The new display is very bright and sharp.

2) Rewire the Power supply and use the switch to cut the primary of the transformer, instead of the secondary.

3) Replaced all the wiring going to the outputs and 5 RCA plugs on the back. I could not stand these cheesy pieces of wires that came with the original tuner.

4) Replaced all components of the power supply and increased the size of some caps. Installed metal resistors of higher wattage on the supply. Replaced the cheesy power cord with a three prongs modern one.

5) Replaced all chemical capacitors on the board, and installed bi-polar caps on the signal path.

6) Installed two new belts to drive the tuner wheel. I found these at ACE and they have one that is large enough to accommodate the SAE mechanism. There are two gouges in the button axle, and the two belts will fit nicely, giving more grip and durability.

7) Cleaned all parts and dusted off all PCBs.

The tuner works like a champ and the sound improved drastically (35 years polarized caps are no match for modern bi-Polar ones). The basses are very authoritative and the treebles are crisp and precise. I listened to a mix of material, Top-40 and classical, as well as a lot of voice and it is a pleasure.

Overall, I probably spent about $30 in components and a few hours of work. Definitely worth it.

Yves

 

[lsrichard]

Anyone have alignment info or a service manual for the SAE 8000 ?

 

[QSerraTico_Tico]

Green display

I replaced the read out LEDs by green ones.
Very clear and crisp display.
Even a blind man can read it from a distance.

I just found out Mouser has has also the red ones from Lite-On on stock.

 

[rattletrap1970]

I have several sets of those DL-747 LED's on my eBay store. NOS

Just look up user "richardd30"

 

[Cool_SAE_8000]

Folks,

I have completed the rework of my SAE 8000 FM tuner. Basically, I did the following:

1) Replace the old DL-747 (a lot of segments were burnt out) with new LITE-On 3401. Result is stupendous and will only cost you $4.40 with Jameco. The original unit had already the new board with 270 ohms resistors marked on the PCB. The new display is very bright and sharp.

2) Rewire the Power supply and use the switch to cut the primary of the transformer, instead of the secondary.

3) Replaced all the wiring going to the outputs and 5 RCA plugs on the back. I could not stand these cheesy pieces of wires that came with the original tuner.

4) Replaced all components of the power supply and increased the size of some caps. Installed metal resistors of higher wattage on the supply. Replaced the cheesy power cord with a three prongs modern one.

5) Replaced all chemical capacitors on the board, and installed bi-polar caps on the signal path.

6) Installed two new belts to drive the tuner wheel. I found these at ACE and they have one that is large enough to accommodate the SAE mechanism. There are two gouges in the button axle, and the two belts will fit nicely, giving more grip and durability.

7) Cleaned all parts and dusted off all PCBs.

The tuner works like a champ and the sound improved drastically (35 years polarized caps are no match for modern bi-Polar ones). The basses are very authoritative and the treebles are crisp and precise. I listened to a mix of material, Top-40 and classical, as well as a lot of voice and it is a pleasure.

Overall, I probably spent about $30 in components and a few hours of work. Definitely worth it.

Yves

Yves,I had to buy 2 sae 8000's to get one that works. My problem is twofold, The first unit had a segment out . I got D-747 replacements and found that one of the TO-220 transistors was bad. I don't know if I'm even naming the part correctly.
Two: The other one receives fm but the display is stuck on 109.1. Can you please tell me what the two power transistors are and what could possibly be a fix to the display moving again. Thanking you in advance Too_Cool