How To Find Out Defective Point; Audio; Video - Marantz SR7300 Service Manual

HOW TO FIND OUT DEFECTIVE POINT

AUDIO

Which signal path has problem Digital or Analog.
• Confi rm 6.1 / 7.1ch INPUT Mode.
• Confi rm S-Direct mode to analog input.
• Confi rm Test Tone output.
• Confi rm Multi Channel Stereo mode to analog input.
• Confi rm Multi Channel Stereo mode to PCM input.

VIDEO

Which stage has problem Input, Output or OSD?
• Confi rm VCR1 or VCR2 output.
• Confi rm both Monitor outputs (S-Video & CVBS) to normal condition.
• Confi rm Monitor output to system setup menu condition.
• Confi rm Monitor output to OSD information (Super imposes).
CVBS
Sel.
Multi
Video
input
CVBS
VC R
Sel.
put
Y
Sel.
S-video
C
input
Sel.
Component
Comp
input
Sel.
Video Block Diagram
I/O Expander
Comp
Driver
60
CPU
OSD
Multi CVBS
Monitor
CVBS
Monitor
S-Video
Monitor
Component