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Excellent manual, detailed, very useful! Exactly what I needed, I'd recommend it to all who need it. Although images are scanned easily readable and explicit. A valuable tool product at a price more than modest, take it with confidence and you will not regret it!
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Clear and complete service manual. Easy now to restore my old Kenwood KD-1500.
Thanks a lot.
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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.
� Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. 1. Insulation resistance test Confirm the specified insulation resistance or greater between power cord plug prongs and externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See table below. 2. Dielectric strength tes Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) See table below. 3. Clearance distance When replacing primary circuit components, confirm specified clearance distance (d), (d') between soldered terminals, and between terminals and surrounding metalic parts. See table below.
Table 1: Rating for selected areas AC Line Voltage 100V 110 to 130V * 100 to 250 V Region Japan USA & Canada South America Insulation Resistance � 1 M�/500 V DC ���
Fig. 1 Dielectric Strength 1kV 1 minute 900V 1 minute Clearance Distance (d), (d') � 3 mm � 3.2mm � 6 mm (d) � 8 mm (d') (a: Power cord)
� 10 M�/500 V DC
4 kV 1 minute
Note: This table is unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality. 4. Leakage current test Confirm specified or lower leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) Measuring Method: (Power ON) Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use and AC voltmeter to measure across both terminals of load Z. See figure and following table. Fig. 2 Load Z Leakage Current (i) ¡ � 1m A rms ¡ � 0.5 m A rms ¡ � 0.7 m A peak ¡ � 2 m A dc ¡ � 0.7 m A peak ¡ � 2 m A dc
Earth Ground
Table 2: Leakage current ratings for selected areas
AC Line Voltage Region
100V 110 to 130 V
Japan USA & Canada South America
100 to 130 V 200 to 250 V
(B) to: Exposed accessible parts Exposed accessible parts Antenna earth terminals Other terminals
Note: This is table unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
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