Cirris Signature 1000HN, User Manual

Page: 59 / 86

Section 12: Troubleshooting / General Problems with the Analyzer
1000HN User’s Guide / page 59
Problem
: One of the scanners is missing, or is not connected correctly to the
analyzer.
Possible Causes :
• Scanner boards not installed properly.
• A loose cable from the analog board to the scanner board.
• Loose scanner daughter card.
• Bad scanner daughter card.
• Bad scanner mother board.
• Bad cable from analog board to scanner boards.
• Bad analog board.
Problem : A test point on a scanner board is not functioning properly. The point is
located on daughter board ‘v’ on scanner assembly ‘n.’
Possible Causes :
• Loose scanner daughter board.
• Cable or harness presently connected to analyzer has a point connected to
earth ground or to some power source.
• A loose cable from the analog board to the scanner assembly.
• Bad scanner daughter board.
• Bad analog board.
General
Problems with
the Analyzer
There are problems you may see with the analyzer that are not detected by the
analyzer’s own internal tests. We will talk about those here.
Problem
: No display and no sound. The analyzer’s display is totally blank.
Possible Causes
:
• Bad 10 VAC wall mount transformer.
• The intensity control for the display is not adjusted correctly.
• Bad microprocessor assembly.
Things to do
:
1. Be sure the wall transformer is plugged into a live wall outlet, then feel if it is
warm. If the transformer stays cold, it is probably bad. If the outlet is good and
the transformer is bad, call Cirris to replace the transformer.
2. If the transformer feels warm, check to see if the microprocessor assembly feels
warm. It should warm up within about five minutes after you turn it on. If it is
still cold after five minutes, the transformer is bad. Call Cirris to replace it.
SCANNER OUT OF
SEQUENCE
BOX n DB V PT nn
BOX n DB V PT nn BOX n DB v PT nn
SCR ERR
SNK ERR
CLR ERR