Monitor Audio Vector Service Manual download pdf (Page 20)

Specifications

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WFM90D and WFM91D Service Manual

Characteristics Tables

The tables use the following abbreviations:

Performance Requirement (Req). All performance requirements in the specifica-

tion tables are identified with Req, and can be assured by completing the

Performance Check Procedure located in the service manual. Allow a warm-up

time of 20 minutes.

Performance requirements in the electrical specifications are valid over an

ambient temperature range of +20° Cto+30° C. The Performance Requirement

tolerances listed in the Electrical Specification are doubled over the temperature

range of 0° Cto+40° C, unless otherwise specified. Test equipment used to

verify Performance Requirements must be calibrated and working within the

limits specified in the service manual Equipment Required List.

Reference Information. Information that amplifies a performance requirement or

is of special importance is indicated by REF. There is no need to check these

items to a specific tolerance.

Electrical Specifications

Table 1- 1: Vertical deflection system

Category Description

Frequency Response

Analog Input REF: Specifications apply for full screen height video input signal, with VARIABLE GAIN off.

REQ: Flat Filter 1 V Full Scale:

50 kHz to 6 MHz within 2% of response at 50 kHz.

REQ: Flat Filter X5 Gain:

50 kHz to 6 MHz within 5% of response at 50 kHz.

REF: Low Pass Filter:

≥40 dB attenuation at 3.58 MHz NTSC, 4.43 MHz PAL.

REF: Response at 15 kHz does not vary between FLAT and LUM (low pass) filters by more than 1%.

Digital Input REF: Specifications apply for full screen height video input signal, with VARIABLE GAIN off.

REQ: Flat Filter 1 V Full Scale:

50 kHz to 4.5 MHz ±4%.

REQ: Flat Filter X5 Gain:

50 kHz to 4.5 MHz ±5%.

REF: Low Pass Filter:

≥40 dB attenuation at 3.58 MHz NTSC, 4.43 MHz PAL.

REF: Response at 15 kHz does not vary between FLAT and LUM (low pass) filters by more than 1%.

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Monitor Audio Vector Service Manual Page 20