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numbering of service-manuals

Discussion in 'Exclusively Sansui' started by HiFi 1991, Nov 3, 2018.

  1. HiFi 1991

    HiFi 1991 AK Subscriber Subscriber

    Messages:
    20
    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

    [​IMG]

    I noticed that from the early 1970's Sansui started to separate the previously unified owner-service-manuals ...

    [​IMG]

    ... and number the individual service-manuals continuously.

    [​IMG]

    The numbers can be found on the back of the service manual:

    [​IMG]

    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:

    [​IMG]

    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:

    [​IMG]
     
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  2. Hyperion

    Hyperion Roobarb & Custard Subscriber

    Messages:
    48,106
    Location:
    Hertfordshire, UK
    Wow! - I had never noticed that before - interesting site in the link.

    Thank you :thumbsup:
     
    HiFi 1991 likes this.
  3. LBPete

    LBPete Rolling Along Subscriber

    Messages:
    11,520
    Location:
    Long Beach, CA
    Wow is right!. Never noticed that either and I worked for years in a Technical Publications department. Good work. Thanks for posting.

    - Pete
     
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  4. LBPete

    LBPete Rolling Along Subscriber

    Messages:
    11,520
    Location:
    Long Beach, CA
    Can you convert these files to PDF? That list is totally unreadable in it's current form.

    - Pete
     
  5. HiFi 1991

    HiFi 1991 AK Subscriber Subscriber

    Messages:
    20

    Attached Files:

  6. Hyperion

    Hyperion Roobarb & Custard Subscriber

    Messages:
    48,106
    Location:
    Hertfordshire, UK
    Any chance of multiple pages and MUCH larger text?
     

     

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  7. HiFi 1991

    HiFi 1991 AK Subscriber Subscriber

    Messages:
    20
    second attempt
     

    Attached Files:

    Hipocrates likes this.
  8. thumper69

    thumper69 Active Member

    Messages:
    110
    Location:
    Louisville, KY
    Just picked this little quad up yesterday. 154150472781554594555.jpg 20181105_132936.jpg 20181105_132908.jpg
     
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  9. HiFi 1991

    HiFi 1991 AK Subscriber Subscriber

    Messages:
    20
    Ok, SM-number?!
     
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  10. thumper69

    thumper69 Active Member

    Messages:
    110
    Location:
    Louisville, KY
    qr500, 212030708 20181105_132947.jpg
     
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  11. lbcgav

    lbcgav AK Subscriber Subscriber

    Messages:
    841
    Location:
    Arcadia, CA
    I think he was asking for the service manual number, not your serial number. The QR-500 was made when Sansui was still combining the user and service manual together, before the new numbering scheme was used.
     
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  12. LBPete

    LBPete Rolling Along Subscriber

    Messages:
    11,520
    Location:
    Long Beach, CA
    Thank you for the PDF. Much easier to use.

    The service manual number is at the bottom of the back cover.

    - Pete
     
  13. restorer-john

    restorer-john Addicted Member

    Messages:
    6,427
    Location:
    Australia
    B-77 power amplifier is SM160
    A-9/A-7/A-5 is SM1-06
    AU-D7/AU-D5 integrated is SM1-11

    They are on your list I think
     
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  14. mattsd

    mattsd AK Subscriber Subscriber

    Messages:
    1,632
    Location:
    Cincinnati, Ohio
    Just FYI, the G-22000/33000 service manual number is SM106.
     
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  15. HiFi 1991

    HiFi 1991 AK Subscriber Subscriber

    Messages:
    20
    Thank You very much!

    [​IMG]

    I got a "Lange-copy" of that SM, but ...

    [​IMG]
     
  16. nj pheonix

    nj pheonix AK Subscriber Subscriber

    Messages:
    9,922
    Location:
    New Jersey
    I'm not likely to need this but you did a great job on this. The tech community is better off as a whole.
    Nice to recover lost secrets.
    Thanks!
     
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  17. thumper69

    thumper69 Active Member

    Messages:
    110
    Location:
    Louisville, KY
    Middle of bottom back cover is this,Stock no. 9206160, bottom right hand corner of back cover is this,printed in Japan (12630M4).
     

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