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There are currently no product reviews.
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I'm happy. Good quality. Very helped me with my work..............................
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This is the second Manual I have ordered from owner-manuals, I give it five stars because it is exactly what I expected given the age of the equipment. So the contents look a bit aged and the pictures a bit grainy, it fulfills my needs and I am glad I can still get hold of them.
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thank u so much for this manual that was so cheap that i thought it was a scam but i gambled anyway because it was too good of a deal to pass up and behold,the manual has everything and details of everything even the screws and im still amazed and very happy with my manual .so take my word and jump on it before they realize how cheap they selling thier manuals..thank you so much for taking time to read my thoughts
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I do not have very much to say.
The price is quite covenient, delivery was better as promised (about 12 ours, against the specified 24 hours if I remember well), and the quality of the PDF is more than acceptable.
The Service Manual of Sansui R30 itself is also satisfactory: good graphic for schematics and layouts, simple and well structured.
Giovanni Bianchi
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Happy to find finally a schematic for this amplifier. The schematic is of good quality, the pcb layout is useless: all is black. Never the less, it is very easy to find the components on the board using the schematics.
R-216(G) R-216(IN) R-216(W) R-216(Y)
TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST
A
MAGNETRON TEST NEVER TOUCH ANY PART IN THE CIRCUIT WITH YOUR HAND OR AN INSULATED TOOL WHILE THE OVEN IS IN OPERATION. CARRY OUT 3D CHECKS. Isolate the magnetron from the high voltage circuit by removing all leads connected to the filament terminal. To test for an open circuit filament use an ohmmeter to make a continuity test between the magnetron filament terminals, the meter should show a reading of less than 1 ohm. To test for a short circuit filament to anode condition, connect ohmmeter between one of the filament terminals and the case of the magnetron (ground). This test should be indicated an infinite resistance. If a low or zero resistance reading is obtained then the magnetron should be replaced. MICROWAVE OUTPUT POWER (IEC60705) The following test procedure should be carried out with the microwave oven in a fully assembled condition (outer case fitted). Microwave output power from the magnetron can be measured by IEC 60705, i.e. it can be measured by using water load how much it can be absorbed by the water load. To measure the microwave output power in the microwave oven, the relation of calorie and watt is used. When P(W) heating works for t(second), approximately P x t/4.187 calorie is generated. On the other hand, if the temperature of the water with V(ml) rises �T (�C) during this microwave heating period, the calorie of the water is V x �T. The formula is as follows; P x t / 4.187 = V x � T+ 0.55 x mc (T2-T0)/4.187 Our condition for water load is as follows: Room temperature (T0) ... around 20°C Water load ..................................1000 g Heating time .............................. 52 sec. T2 ............................ Final Temperature P (W) = 4.187 x V x �T / t + 0.55 x mc (T2-T0)/t Power supply Voltage .............. Rated voltage Initial temperature (T1) ...................... 10±1°C Mass of container (mc) ......................... 330 g P = 80 x �T + 0.55 x mc (T2-T0)/52
Measuring condition: 1. Container The water container must be a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and an outside diameter of approximately 190 mm. 2. Temperature of the oven and vessel The oven and the empty vessel are at ambient temperature prior to the start of the test. 3. Temperature of the water The initial temperature of the water is (10±1)�C. 4. Select the initial and final water temperature so that the maximum difference between the final water temperature and the ambient temperature is 5�C. 5. Select stirring devices and measuring instruments in order to minimize addition or removal of heat. 6. The graduation of the thermometer must be scaled by 0.1�C at minimum and an accurate thermometer. 7. The water load must be (1000±5) g. 8. �t� is measured while the microwave generator is operating at full power. Magnetron filament heatup time is not included. NOTE: The operation time of the microwave oven is �t + 3� sec. 3 sec. is magnetron filament heat-up time. Measuring method: 1. Measure the initial temperature of the water before the water is added to the vessel. (Example: The initial temperature T1 = 11�C) 2. Add the 1 litre water to the vessel. 3. Place the load on the centre of the shelf. 4. Operate the microwave oven at HIGH for the temperature of the water rises by a value � T of 10 �C. 5. Stir the water to equalize temperature throughout the vessel. 6. Measure the final water temperature. (Example: The final temperature T2 = 21°C) 7. Calculate the microwave power output P in watts from above formula.
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