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Thanks for this "hard to find" service manual. This Sony PS212A is a very good turntable that needed to be restored !
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Excellent quality on these manuals. Same as having the original printed manual and incredibly useful when doing a custom install like me. Keep it up on the good work.
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This is an excellent information source. Great quality and tons of info regarding technical service for the Technics SH8065.
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5 stars on this manual since it is the complete version, not the half manual you find free for download all over the web. Good job.
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Thank you very much you are helping me a lot with my preferred hobby!!! this manual of an old TV is going to be very helpful!!!!
You are very honest competent great job very clear and well done!!!!
Matteo
AV21BT7ENS / AV21BT7ENB AV21BT7EPS / AV21BT7EPB AV21BT7EES / AV21BT7EEB
Item 4:3 HORIZONTAL SHIFT Adjustment
Measuring instruments Signal generator
Test point
Adjustment part Adjust 12 ( 4 : 3 ) Adjust 23 ( 16 : 9 ) 1. 2. 3. 4.
Description Receive a RED test pattern. Set < 4 : 3 aspect mode >. Select < ADJUST 12 > from SERVICE MENU. Change horizontal shift till the picture is horizontally centered. Check whether this adjustment is correct after completing Service Mode Adjustment. 5. Set < 16 : 9 aspect mode >. 6. Adjusts with the step which is the same above from 3 to 4 about the 16 : 9 aspect mode, too.
VERTICAL SLOPE Adjustment
Signal generator
Adjust 13 ( 4 : 3 ) Adjust 24 ( 16 : 9 )
1. 2. 3. 4.
Receive a cross-hatch signal. Set < 4 : 3 aspect mode >. Select < ADJUST 13 > from SERVICE MENU. Change vertical slope till the size of squares on both the upper and lower part of test pattern become equal to the squares laying on the vertical centre of the test pattern. Check and readjust VERTICAL SLOPE item if the adjustment becomes improper after some other geometric adjustments are done. 5. Set < 16 : 9 aspect mode >. 6. Adjusts with the step which is the same above from 3 to 4 about the 16 : 9 aspect mode, too.
VERTICAL AMPLITUDE Adjustment
Signal generator
Adjust 14 ( 4 : 3 ) Adjust 25 ( 16 : 9 )
1. 2. 3. 4.
Receive a PAL test pattern signal. Set < 4 : 3 aspect mode >. Select < ADJUST 14 > from SERVICE MENU. Change vertical slope till horizontal black lines on both the upper and lower part of the test pattern become very close to the upper and lower horizontal sides of picture tube and nearly about to disappear. Check and readjust VERTICAL AMPLITUDE item if the adjustment becomes improper after some other geometric adjustments are done. 5. Set < 16 : 9 aspect mode >. 6. Adjusts with the step which is the same above from 3 to 4 about the 16 : 9 aspect mode, too.
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No. 51878
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