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Sansui relay subs

smurfer77

smurfer77

Super Member
The idea of this thread is to pull together a quick and easy reference for finding modern replacements for old relays in Sansui devices. I will pull together what info I have, but please everyone contribute what you know and I will continuously edit this first post to combine all of the data.

Please provide (where possible) Sansui model / sansui part number (if you have it) / modern part replacement and note any mods required. I will link each model to either the relevant post in this thread, or a relevant thread, whichever holds the most info.
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Sansui 8080: MY4-02-DC24
Sansui 9090: MY4-02-DC24
Sansui 8080dB: MY3-02-DC24
Sansui 9090db: MY3-02-DC24

Sansui AU-217: Speaker relay --> MY4-02 DC24
Sansui AU-517: Taiko RABK 2B --> MY4-02-DC24. Just trim two pins (see here for pics of the original vs MY4. You don't need to add jumpers, the PCB does it for you already). MY2-02-DC24 can be used too. See link for more info on MY4 vs MY2; (I checked PCB for AU-517 and AU-717; same deal).
Sansui AU-717: Taiko RABK 2B --> MY4-02-DC24 (see link for AU-517 for a bit more info on MY4 vs MY2).

Sansui AU-919: MY4-02 DC24 (x2)

Sansui 9900 /11000: LY2-0-DC24 (x1)
MY4-02-DC24 (x1 speaker). Both the A and non-A versions of these amps also have a little reed relay on the pre-main board, which shouldn't need replacing (hopefully).

Sansui 9900A /11000A: LY2-0-DC24 (x1); MY2-02-DC24 (x1 speaker. MY4-02-DC24 can be used by snipping 6 pins, but if you don't parallel the switches into pairs current handling drops from 6A to 3A (MY2-02 is 5A)). More info here

Sansui AU-11000: Omron #MY4-02-DC24
Sansui AU-20000: LY2-0-DC24 (x1); MY4-02-DC24 (x1)

Sansui AU-Alpha607MR / MRX: G2RG-2A4 24VDC (speaker x2) (I've tested this one myself)

Sansui AU-D9: RL2 (Speakers A) --> MY4-02-DC24 (cut off NC pins), RL3 (speakers B) --> Omron G2RL-2-DC24 (with two inner pins cut off); RL3 (headphones) --> G5V-2 type miniature relay wired to the board with flexible (or solid) wire links. See John's post in this thread (linked under the model name) for more links/details.

Sansui AU-D907X: G4W-2212P-US-TV5-HP-DC24 (x2); G4W-1112P-US-TV8-HP-DC24 (x1)

Sansui AU-X1: LY2-02-DC24 (speaker x2); ? (Soft Start x1); G5V-2-DC24 (Signal x5; need leg extensions); 24V DC reed relay --> Omron G5V-2-DC24 (Headphone 1x - not direct drop-in but easy job)

Sansui BA-F1: MY4-02-DC24 (speaker x2; cut off 'NC' pins x4 as no holes in PCB for them).

Sansui G-4700: none
Sansui G-5500: 1150400 or 480 --> MY4-02-DC24
Sansui G-5700: 1150400 or 480 --> MY4-02-DC24
Sansui G-6700: 1150400 or 480 --> MY4-02-DC24
Sansui G-7700: Fujitsu 323D024 --> G5V-2 (Kevzep says MY4 doesn't fit - info here. Feels G5V is not heavy duty enough for speaker really; remote mounted an LY2 instead).
Sansui G-8000: see G-9000.
Sansui G-8700DB: 1150410 --> LY2-0-DC24
Sansui G-871DB: 1150410 --> LY2-0-DC24
Sansui G-9000: LY2-0-DC24 (speakers x2); MY4-02-DC24 (protection x1); MY4-02-DC24? (headphones & power meters x1).
Sansui G-9000DB: as for G-9000 (and see this restoration showing relays in G-9000DB)

Sansui G-9700: 1150410 --> LY2-0-DC24
Sansui G-971: 1150410 --> LY2-0-DC24

Sansui QRX-7001: 1150101 --> MY4-02 DC24

Sansui Six: speaker relay MY4-02 DC24
 
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Sansui QRX-7001
Sansui P/N 1150101
Original Omron P/N MY4-02-US-24DC (FSM says something different, but I'm looking at the Elektrotanya copy and it's not great, looks like MY4-00?-?4)
Current Omron P/N MY4-02 DC24
 
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Hipocrates said:
AU-717/517------->OMRON MY2-02-DC24
Click to expand...

I think this is actually (sorry to be picky :))
AU-717 = Omron MY4-02-DC24
AU-517 = Omron MY2-02-DC24

But you can use MY4 for both and cut the extra pins off (or leave them unconnected?) for AU-517 use.
 
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AU-X1
Speaker Relays x2
Omron LY2-02-DC24

Soft Start Relay x1
?

Signal relays x5
Omron G5V-2 24DC (not drop in replacements - need flexible wire extensions to legs)

Headphone relay (green 'dead bug' type)
? 24V DC
 
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G-9000/8000 speaker relays:
1- MY4-02-DC24 + 2- LY2-02-DC24

It has other relays but the speaker relays is what came to mind.

- Pete
 
LBPete said:
G-9000/8000 speaker relays:
1- MY4-02-DC24 + 2- LY2-02-DC24

It has other relays but the speaker relays is what came to mind.

- Pete
Click to expand...

Thanks pete. According to an old post of EchoWars (and I see you contributed to that thread... I will link that thread in my first post) that would be
Speaker relays - LY2-0-DC24
Headphone and protect LED relay - MY4-02-DC24
("Three relays...one for selecting Speaker A, one for Speaker B, and one for the headphones and LED's. If you never use Speaker B then you can simply replace the Speaker A relay.")
so I will put that in the first post unless someone has more/updated info.

Everyone: if there are great threads on the particular model/relay if you happen to have a link saved let me know and I will link that too.
 
Sansui G-4700.........(none)
Sansui G-5700...1150400 or 480.....MY4-02-DC24
Sansui G-6700...1150400 or 480.....MY4-02-DC24
Sansui G-7700...1150400 or 480.....MY4-02-DC24
Sansui G-8700DB.....1150410.........LY2-0-DC24
Sansui G-871DB.......1150410.........LY2-0-DC24
Sansui G-9700..........1150410.........LY2-0-DC24
Sansui G-971............1150410.........LY2-0-DC24
 
smurfer77 said:
Thanks pete. According to an old post of EchoWars (and I see you contributed to that thread... I will link that thread in my first post) that would be
Speaker relays - LY2-0-DC24
Headphone and protect LED relay - MY4-02-DC24
("Three relays...one for selecting Speaker A, one for Speaker B, and one for the headphones and LED's. If you never use Speaker B then you can simply replace the Speaker A relay.")
Click to expand...

There are three relays are in the signal path. The MY4 relay is the protection relay. It opens when protection is tripped. The two LY2 relays are controlled by the A and B speaker switches on the front panel and open when that speaker choice is switched off. There may be another MY4 relay for the LEDs and headphones. The 9000 has a soft start relay, I don't recall the number off hand but it's probably an LY2 with solder lugs. I also think there is a reed relay in the side panel.

- Pete
 
ghazzer said:
Sansui G-4700.........(none)
Sansui G-5700...1150400 or 480.....MY4-02-DC24
Sansui G-6700...1150400 or 480.....MY4-02-DC24
Sansui G-7700...1150400 or 480.....MY4-02-DC24
Sansui G-8700DB.....1150410.........LY2-0-DC24
Sansui G-871DB.......1150410.........LY2-0-DC24
Sansui G-9700..........1150410.........LY2-0-DC24
Sansui G-971............1150410.........LY2-0-DC24
Click to expand...
LBPete said:
There are three relays are in the signal path. The MY4 relay is the protection relay. It opens when protection is tripped. The two LY2 relays are controlled by the A and B speaker switches on the front panel and open when that speaker choice is switched off. There may be another MY4 relay for the LEDs and headphones. The 9000 has a soft start relay, I don't recall the number off hand but it's probably an LY2 with solder lugs. I also think there is a reed relay in the side panel.

- Pete
Click to expand...

Thanks Pete. I just had a quick look at the G8000/G9000 schematic for the first time ever and I see: 2x (speaker relays), 1x (prot relay) and 1x (headphone & power meters). The LEDs seem to have a fuse instead of a relay so I will edit the first post accordingly. thanks.
 
smurfer77 said:
? 24V DC (Headphone - green 'dead bug' type)
Click to expand...

That is a reed relay. Made by Hitachi and very rare now in it's original format.
df562e8ade52662ded272c3cbb911af0.jpg


There are contemporary options, one of which can (kind of) be seen here.
index.php


And in a pinch, should you need to replace one of those old reed relays,
you could use an Omron G5V-2 24VDC.
b4f20e8fb5d96f7d4bdde8aa5bdb2a9f.jpg

86df7e5884179f977a8cd1c1a3174e1a.jpg

cc7b9ab2e98a9e46f283318d1febebb8.jpg



Here a link to the thread I created about using one of those Omrons as a Hitachi substitute.
http://audiokarma.org/forums/index.php?threads/rare-reed-relay-substitution-a-visual-how-to.771050/
 
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Ronito6 said:
That is a reed relay. Made by Hitachi and very rare now in it's original format.
df562e8ade52662ded272c3cbb911af0.jpg


There are contemporary options, one of which can (kind of) be seen here.
index.php


And in a pinch, should you need to replace one of those old reed relays,
you could use an Omron G5V-2 24VDC.
b4f20e8fb5d96f7d4bdde8aa5bdb2a9f.jpg

86df7e5884179f977a8cd1c1a3174e1a.jpg

cc7b9ab2e98a9e46f283318d1febebb8.jpg



Here a link to the thread I created about using one of those Omrons as a Hitachi substitute.
http://audiokarma.org/forums/index.php?threads/sansui-relay-subs.806930/
Click to expand...

Thanks again! Great contribution. The link is incorrect btw, but I found your excellent thread; will link it in first post. Can you confirm the power start relay too? The first post is still missing that one
 
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smurfer77 said:
Thanks again! Great contribution. The link is incorrect btw, but I found your excellent thread; will link it in first post. Can you confirm the power start relay too? The first post is still missing that one
Click to expand...

Woops...Here http://audiokarma.org/forums/index.php?threads/rare-reed-relay-substitution-a-visual-how-to.771050/
Fixed in my post above too.

The relay I used on my X1's F-2781 "Power Supply & Protector Circuit Board" is Nais HL2-HP-DC24V-F.

The same (2) were used on my F-2820 "Speaker Relay Circuit Board".

So (for now) consider Nais HL2-HP-DC24V-F for your Sansui X1 and X11 big relay needs.

THROUGH HOLE VERSIONS.
 
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