Audiovox 128-7744, 128-5495E Specification, Troubleshooting, No power at Video Monitor

Q.Specification

Disc format: DVD/CD/MP3

Color system: NTSC/PAL

Screen size: 8”

Resolution: 1440 x 234

Frequency response: 20 Hz to 20 kHz

Video output: 1 Vp-p/75 Ohm, unbalanced

Audio output: 1.4Vrms/10kOhm

Audio S/N: Better than 60 dB

Dynamic range : Better than 85 dB

Laser: Semiconductor Laser, Wave Length: 650 nm/790 nm

Power source: DC 12V

Power consumption: 2.5 Amps

Operating temperature: 5~45°C

Storage temperature: -20~60°C (4~140°F)

Dimensions (L x W x D): 282 x 165 x 50 mm (11.1” x 6.5” x 1.97”)

R.Troubleshooting:

SYMPTOM:

No power at Video Monitor

REMEDY:

-Verify+12VDConRedwireat2pinPower Harness behind video monitor. Verify ground connection with continuity test from known good ground to black wire at 2 pin Power Harness.

Power but no video or sound

-Verify that the correct source is selected (i.e.: DVD, AV1 or AV2). Verify that the source is on and playing a known good media (such as a DVD). Verify connec- tions at both ends of the harness.

Picture, but no sound	-Verify that the headphones are turned on;
	check headphone batteries.
	-Verify that power is available to the FM
	Modulator; make sure the FM modulator
	and the vehicle radio are set to the
	same FM station.

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