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There are currently no product reviews.
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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
1. ELECTRICAL ADJUSTMENTS
1.1 Supply Voltage Adjustment Connect a digital voltmeter to the cathode of diode D950 at the AV mode of the TV and set the screen voltage to the minimum with the screen potentiometer. Adjust the main supply voltage (B+) with P901 potentiometer to the following value (after supply adjustment, readjust Screen and focus voltage). 20� : 119 VDC (for A48ECR43X51) 21� : 114 VDC (for A51EER33X41)
2. SERVICE ADJUSTMENTS
You need the special service remote control to enter and exit the service menu of the TV (you can order it from the manufacturer). All buttons of the Service RC are same with the user remote control, only service menu In / Out is added to it (please see the picture below). Navigation Service In/Out : Enters to / exits from the Service Menu P+ / P: Moves upward / downward inside the menu V+ / V: Changes the values or options
2.1 IF Adjustments 2.1.1 PAL SECAM BG/DK/I � � � � � � � � � � 2.1.2 � � � � � Supply a 471.25 MHz BG system colour bar RF signal to the set by a pattern generator. Find this signal in �setup� menu (C21). In order to deactivate AFT loop, shift value of �fine tuning� from central point by one unit and then shiftback to the central point again (2 small vertical lines are seen in the scale on central point). Store the channel by selecting �Store� and pressing �OK� button. Switch on the Service Menu with the Service RC. Check that value of �VCO C� is �07�. Adjust the coil LC100 until the colour of �:� sign turns red (�<� and �>� are white). Check that value of �VCO F� is �63�. Adjust the coil LC100 until the colour of �:� sign turns red (�<� and �>� are white). Exit from the service menu with the Service RC. SECAM L/L� (if available) Supply a 55.75 MHz, L� system colour bar RF signal to the set by a pattern generator. Find this signal in �setup� menu (C02). In order to deactivate AFT loop, shift value of �fine tuning� from central point by one unit and then shiftback to the central point again (2 small vertical lines are seen in the scale on central point). Store the channel by selecting �Store� and pressing �OK� button. Switch on the Service Menu with the Service RC.
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