Cypress Semiconductor Perform STK12C68 Instrukcje Operacyjne Pobierz pdf (Strona 37)

3-22 (E)

DFP-R3000

(3) Check that the teeth of the sprocket do not touch

against the both sides of the perforations (holes) of the

alignment film.

If it touches, adjust the installation of the sprocket

again.

Procedure

(1) Set the sweep times of the oscilloscope so that the

pulse width (high level) of the reference pulse (oscillo-

scope CH2).

(2) Check that the deviation A of the output waveform

(RF signal) of the oscilloscope CH1 meets the follow-

ing specifications in respect to the S correction value

in the data sheet provided with the alignment film.

Specification : A = S correction value ±0.1 DIV

(scales)

When the S correction value is + :

C portion of the signal leads B portion of the center of the

rising pulse for the amount of the correction value.

When the S correction value is _ :

C portion of the signal trails B portion of the center of the

rising pulse for the amount of the correction value.

3-4. Film Running Checking

Perforations (holes)

No touch.

Film

Tooth of sprocket

Sprocket

Tooth of sprocket

Alignment film

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 110 111

Brak uwag

Cypress Semiconductor Perform STK12C68 Instrukcje Operacyjne Strona 37