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Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
2) Water leak check methods for other waterproofed locations. In addition to water leaks caused by damaged parts and loose screws, there are also water leaks at other waterproofed locations which cannot be detected with a water leak test : therefore, the hydraulic pressure test must be used. **Hydraulic pressure test In this test, Marine Pack is immersed in a water tank called a hydraulic pressure vessel, pressure is applied using compressed air and checks are made for water leaks and the ability to withstand water pressure is tested. Extreme pressure is applied to Marine Pack underwater. Water leaks may occur when this pressure is first applied. In such cases, the water leak check must be made using the hydraulic pressure test with a hydraulic pressure vessel.
4. Causes of Water Leaks (excluding parts damage) Water leaks in openings 1) When the covers have been closed with sand, dirt and hair adhered to the O-rings, O-ring grooves, housing O-ring contact surface or waterproof packing. 2) When the cover is closed with an O-ring out of its groove or a cord is caught in the cover. 3) When an O-ring is damaged or cracked (aging). 4) When there is a long scratch which crosses the housing O-ring contact surface. 5) When a cover is not tightly closed due to a defective buckle. � Water leaks at other waterproofed locations 6) When there are scratches on the surfaces of the parts which compress the O-rings. 7) When the Parts which compress are loose. 8) When tightening with sand, dirt and hair adhered to an O-ring or part which compresses the O-ring. 9) When an O-ring has not been installed. Causes 1)-5) and 9) above can be discovered relatively easily using the water leak test described above. 5. Causes of Water Leaks (excluding parts damage) Water leaks in openings 1) When the covers have been closed with sand, dirt and hair adhered to the O-rings, O-ring grooves, housing O-ring contact surface or waterproof packing. 2) When the cover is closed with an O-ring out of its groove or a cord is caught in the cover. 3) When an O-ring is damaged or cracked (aging). 4) When there is a long scratch which crosses the housing O-ring contact surface. 5) When a cover is not tightly closed due to a defective buckle. � Water leaks at other waterproofed locations 6) When there are scratches on the surfaces of the parts which compress the O-rings. 7) When the Parts which compress are loose. 8) When tightening with sand, dirt and hair adhered to an O-ring or part which compresses the O-ring. 9) When an O-ring has not been installed. Causes 1)-5) and 9) above can be discovered relatively easily using the water leak test described above.
Compressor
Pressure gauge Compressed air
Marine Pack Hydraulic pressure vessel
Water
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