Nikon Coolpix 4600 Repair Manual page 37

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Resolution inspection

When dissembling and repairing the lens-barrel, be sure to check the following after assembling it into the camera body.

・Resolution inspection

By shooting the high-definition resolution chart (J63079), confirm that the number of TV lines is within the

standard.

TV lines (standard): 1100 TV lines or more in the center; 700 TV lines or more at the periphery

(ref. The resolution is represented by"TV lines", which are total number of black-and-white strips distin-

guishable on the TV screen.)

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(a) To take pictures, set the camera as follows: Shooting-mode (AUTO), Image quality mode (High), Flash

mode (Flash cancel)

(b) Check the zoom position at WIDE, MIDDLE and TELE.

The object distance: WIDE (approx. 0.5m), MIDDLE (approx. 0.98 m), and TELE (approx.1.6 m). Set

the chart fully screened in the LCD of the camera and fix it on a tripod.

(d) Check if the resolution in the center and the 4 corners of the periphery is identifiable in black and white at

the position circled in red as below.

In case the resolution is defective, it is necessary to replace the lens-barrel group unit with the new one.

High-definition resolution chart (J63079)

- A13 ･ E4600 -

VAA32001-R.3652.A

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Coolpix4600