Schematic for Sony TC-200 tape unit - diyAudio
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Old 6th March 2012, 04:26 PM   #1
bichela is offline bichela  United States
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Thumbs down Schematic for Sony TC-200 tape unit

Does anyone have a complete Schematic for this unit? I am not recording sound on Channel 1 but "monitor" on this channel works great. Channel 2 is really out of wack. as it sounds like mud and again doesn't record.

I got half of a diagram but I need the entire diagram. I have a poor quality sony Tc-200A diagram that is lousy resolution and barely readable.

I need to know which caps to replace in addition to diagnosing where the sound circuit is broken.
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Old 7th March 2012, 06:12 AM   #2
tricomp is offline tricomp  Denmark
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Hi,

I have the perfectly readable schematic diagram for the TC200.
Just, a TC200 isn't a TC200; it comes in many flavours.
There are the hybrid transistor/tube versions and also a pure transistor-version.

My file has all versions but it's 1M+ in size and this forum allows for only 0.2Mb in a pdf.
PM me with your e-mail address for more.

rgds,

/tri-comp
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Old 7th March 2012, 02:40 PM   #3
bichela is offline bichela  United States
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My email is bichela3@yahoo.com. I have the hybrid model. I'm not surprised they made a solid state version as well. I think the head is worn out too. It appears the original owner treated it kindly but used it heavily. Fix amp first before replacing a hard to find head.
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Old 7th March 2012, 03:27 PM   #4
bichela is offline bichela  United States
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Quote:
Originally Posted by bichela View Post
Does anyone have a complete Schematic for this unit? I am not recording sound on Channel 1 but "monitor" on this channel works great. Channel 2 is really out of wack. as it sounds like mud and again doesn't record.

I got half of a diagram but I need the entire diagram. I have a poor quality sony Tc-200A diagram that is lousy resolution and barely readable.

I need to know which caps to replace in addition to diagnosing where the sound circuit is broken.
My email is bichela3@yahoo.com. I have the hybrid model. I'm not surprised they made a solid state version as well. I think the head is worn out too. It appears the original owner treated it kindly but used it heavily. Fix amp first before replacing a hard to find head. Playback is barely audible even on the working channel 1 section.
Touching head leads gives a weak buzz which indicates head to Amp circuit issues. I cleaned all switches with contact cleaner. Cleaned all tube sockets with contact cleaner. All tubes glow and channel 1 sounds a bit better but channel 2 is still sick. I suspect bad decoupling caps in the head to preamplifier circuit ad well as preamplifier to power amp section.
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