[BC] Providing schematics

[Wayne Woollard]

It may take me a while to dig up chapter and verse, but in the mid 1970's 
Manufacturers were forbidden to import electronic items to California, 
unless they were accompanied with a schematic, or there was a source 
available within the state to acquire them for free.  Sometimes the 
schematic for a television set was the size of a postage stamp.  Give me 
time to look it up.  I should have it somewhere in one of the filing 
cabinets around here.

Wayne W.
----- Original Message ----- 
From: "Harold Hallikainen" <harold at hallikainen.com>
To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
Sent: Thursday, October 04, 2007 1:14 PM
Subject: Re: [BC] Providing schematics


> Wayne, can you give a citation for that Act? I can't find it at
> http://leginfo.public.ca.gov/cgi-bin/calawquery?codesection=bpc&codebody=&hits=All
> or Google.
>
> THANKS!
>
> Harold
>
>
>> Well, I live in Los Angeles, and they ain't supplying it!
>>
>> -D
>>
>> ------ Original Message ------
>> Received: Thu, 04 Oct 2007 02:47:08 PM EDT
>> From: "Wayne Woollard" <woollard at inreach.com>
>> To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
>> Subject: Re: [BC] Providing schematics
>>
>> If you are in the state of California, the law requires it be supplied
>> upon
>> request. A portion of the Fair Repairman Act.  According to the law you
>> have
>> the right to repair something you bought and paid for.
>>
>> Wayne Woollard
>> ----- Original Message -----
>> From: "Dana Puopolo" <dpuopolo at usa.net>
>> To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
>> Sent: Thursday, October 04, 2007 10:52 AM
>> Subject: [BC] Providing schematics
>>
>>
>> I have been using Broadcast Tools products for a long time and find them
>> well
>> made problem solvers. As part of the Greenstone closing I wound up with a
>> couple of their devices; specifically a SS 4.1 relay switcher and an 
>> AHR-1
>> headphone station. I've been looking to obtain an audio control preamp 
>> for
>> some time (for now I feed all audio through my Sony Trinitron CRT TV 
>> set-a
>> compormise at best), but being unemployed makes purchasing one-even used-
>> impossible.  So, I began looking at these two pieces as a way to make a
>> decent
>> preamp. Turns out that the AHR-1 uses three dual opamps and has its own
>> onboard three terminal regulators. Since I also have a 24 volt AC wall
>> wart,
>> I
>> thought about running a pair or diodes as half wave rectifiers and two
>> caps
>> to
>> make =/- 18 volts. I'd pick the audio off just after the volume control
>> and
>> that way have the benefit of a headphone amp to boot. The unit has
>> balanced
>> inputs, which would work great with the SS4.1 as a source selector. The
>> opamp
>> chips in the unit are commercial grade, but I obtained some samples of
>> National Semiconductor's new esoteric (and expensive!) super grade hifi
>> dual
>> op amps. Seems like a good way to make an audiophile grade premap for
>> practically no $$!
>>
>> Broadcast Tools doesn't provide a schematic of the unit, just a
>> "functional
>> diagram" which basically shows hook up instructions, so I emailed them to
>> get
>> one. They refused to provide one to me! In fact, apparently they don't
>> provide
>> ANY schematics of ANY products to ANYONE!
>>
>> I have a REAL problem with this! Am I justified? Shouldn't broadcast
>> equipment
>> manufacturers provide schematics of their equipment so station engineers
>> can
>> repair the equipment THEY own? I know that most DO provide schematics. Is
>> Broadcast Tools in the wrong here or am I simply being too anal over 
>> this?
>>
>> Comments?
>>
>> -D
>>
>>
>> _______________________________________________
>>
>> The BROADCAST [BC] list is sponsored by SystemsStore On-Line Sales
>> Cable-Connectors-Blocks-Racks-Test Gear-Tools-Lots More + Now Barix too!
>> www.SystemsStore.com       Tel: 407-656-3719    Sales at SystemsStore.com
>>
>>
>>
>> _______________________________________________
>>
>> The BROADCAST [BC] list is sponsored by SystemsStore On-Line Sales
>> Cable-Connectors-Blocks-Racks-Test Gear-Tools-Lots More + Now Barix too!
>> www.SystemsStore.com       Tel: 407-656-3719    Sales at SystemsStore.com
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>>
>> The BROADCAST [BC] list is sponsored by SystemsStore On-Line Sales
>> Cable-Connectors-Blocks-Racks-Test Gear-Tools-Lots More + Now Barix too!
>> www.SystemsStore.com       Tel: 407-656-3719    Sales at SystemsStore.com
>>
>>
>>
>
>
> -- 
> FCC Rules Updated Daily at http://www.hallikainen.com - Advertising
> opportunities available!
> _______________________________________________
>
> The BROADCAST [BC] list is sponsored by SystemsStore On-Line Sales
> Cable-Connectors-Blocks-Racks-Test Gear-Tools-Lots More + Now Barix too!
> www.SystemsStore.com       Tel: 407-656-3719    Sales at SystemsStore.com
>
>
>