HiFi 1991
New Member
When I wrote the table of contents for my freshly restored service manual file folder ...
https://old-fidelity.de/thread-12531-post-965636.html#pid965636
I noticed that from the early 1970's Sansui started to separate the previously unified owner-service-manuals ...
... and number the individual service-manuals continuously.
The numbers can be found on the back of the service manual:
Curious, I began to check all my existing documents and can after several (!) weekends allocate nearly 400 numbers, which looks something like this:
(Really stupid is that many scans do not include the last page - because nothing important is on it ... :-/ )
Here are some interesting things noticed:
The numbering is obviously continuous, whereby I can identify different number ranges that differ by either no leading digit or by the prefix digits "1-", "2-" and "4-".
Furthermore, there are almost no duplicates, so that a manual based on the SM number obviously should be clearly identifiable.
In fact, it took some time to clearly distinguish numbers like SM1-05 and SM105, but the described rules are largely clear and unambiguous.
Really interesting here is probably that resulting from the serial numbers of the sercice manuals probably more or less continuous production data of the devices, that is, it can be relatively reliably determined by the SM numbers, which device is before or after which other device appeared / produced ...
... and when Sansui gradually gave up (had to give up) the Japanese production lines and produced more and more in National China (Taiwan), the sequential numbers were no longer awarded for these manuals:
Note the OEM 〶 tag which indicates a supplier, d. h., it was made "under license" - or (honestly) simply bought!
Here is my entire list in the current state:
https://old-fidelity.de/thread-12531-post-965636.html#pid965636
I noticed that from the early 1970's Sansui started to separate the previously unified owner-service-manuals ...
... and number the individual service-manuals continuously.
The numbers can be found on the back of the service manual:
Curious, I began to check all my existing documents and can after several (!) weekends allocate nearly 400 numbers, which looks something like this:
Code:
SM001 QRX-3500 4-Channel Receiver
SM002 QRX-3000 4-Channel Receiver
SM003 Eight-Deluxe AM/FM Stereo Receiver
SM004 QA-7000 4-Channel Amplifier
[...](Really stupid is that many scans do not include the last page - because nothing important is on it ... :-/ )
Here are some interesting things noticed:
The numbering is obviously continuous, whereby I can identify different number ranges that differ by either no leading digit or by the prefix digits "1-", "2-" and "4-".
Furthermore, there are almost no duplicates, so that a manual based on the SM number obviously should be clearly identifiable.
Code:
SM001 QRX-3500 4-Channel Receiver
SM016 SR-313 Two-Speed Belt-Drive Turntable
SM027 AU-6600 Stereo Amplifier
SM160 B-77 Stereo Power Amplifier
SM1-06 A-9/A-7/A-5 Master Integrated Amplifier
SM1-06 D-300M Stereo Cassette Tape Deck, Metal-Tape-Compatible/High-B Head
SM1-16 FR-D55 Computerized Fully Automatic Direct Drive Turntable
SM1-166 RG-710 Stereo Graphic Equalizer Consolette (Silver & Black Model)
SM2-60 CD-X501i Compact Disc Player
SM2-180 D-X111HX / D-X211HX•R Stereo Cassette Deck
SM4-003 B-2105 MOS VINTAGE Super High Grade Stereophonic Main Amlifier (Jp)
[...]In fact, it took some time to clearly distinguish numbers like SM1-05 and SM105, but the described rules are largely clear and unambiguous.
Really interesting here is probably that resulting from the serial numbers of the sercice manuals probably more or less continuous production data of the devices, that is, it can be relatively reliably determined by the SM numbers, which device is before or after which other device appeared / produced ...
... and when Sansui gradually gave up (had to give up) the Japanese production lines and produced more and more in National China (Taiwan), the sequential numbers were no longer awarded for these manuals:
Note the OEM 〶 tag which indicates a supplier, d. h., it was made "under license" - or (honestly) simply bought!
Here is my entire list in the current state:
