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Simple and fast...
The diagrams are clear and legible; i have been a great help.
The site is very reliable and precise thanks.
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Very easy site. Great service and quick release for download. Manuals are of good quality.
Joop - The Netherlands
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Very good manual, in depth and complete. Only criticism is that some of the circuit diagrams are slightly blurry and hard to follow for long periods of time, but this is to be expected. Perfect for any maintenance required. Also contains the wiring diagrams of the control cable for constructing extensions.
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Received a quick response, material was exactly what it was supposed to be. The service did everything I expected it to do. would use service again.
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Detailed SONY CFD980 Service Manual at an easy to find one stop shopping. Make my radio hobby technically interesting. Thanks.
Model 4342A
Section Figure
TTT
3-6
Mechanical
zero
adiustment
The meter is properly zero-set when the pointer sets exactly over the zero calibration scale mark and the instrument is in its normal operating environment. To check the meter mechanical zero, turn the instrument off and allow 30 seconds to completely deenergizethe z strument. To obtain maximum accuracy and mechanical stability, if the meter is not over zero, zero-set the meter as follows: a. b. Rotate meter pointer adjustment screw @ clockwise is moving toward zero in an upscale direction. Continue rotating screw clockwise and stop exactly at zero. If the pointer overshoots, the adjustment screw clockwise to do steps until meter
when pointer is continue rotating a and b once again.
C.
When the pointer is exactly over zero, rotate adjustment screw slightly counterclockwise to relieve tension on pointer suspension. If pointer moves off zero, repeat steps a, b and c, but rotate less counterclockwise. zero adiustment
Electrical
The meter pointer should set exactly over the zero scale mark when instrument is turned on and nothing is connected to measurement terminals. Turn the instrument on and allow at least 15 minuts warm-up time to let the instrument reach a stable operating condition. If meter pointer is not over zero, zero-set the meter as follows: a. b. Set FREQUENCY RANGE selector 001) and Q RANGE@ to 1000. Adjust pointer rear panel is exactly @to 22k - 70k (10k - 32k for so that the meter Option
METER ZERO ADJ control@ over zero.
Figure
3-6.
Zeroing
Procedure
(sheet
2 of 2).
3-9
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