NAD L-70 Service manual
Service Information L70
Circuit Change
PROBLEM: When using the component out on the L70 you may find the video
signal has faint diagonal lines appearing.
CAUSE: The ground plane requires additional coupling.
SOLUTION: Add a 10 ohm resistor to location R593 on the video board.
Add a 0.1uF ceramic capacitor to location C593 on the
video board. See photo below.
Photo 1
PRODUCTION:
All production to September 2003 is affected.
Contact:
NAD Electronics International
633 Granite Court
Pickering, ON Canada L1K 3K1
Voice: 905-831-0799 FAX 905-837-6357 10/07/03
Service Information L70
Circuit Change
PROBLEM: You may have the complaint that the TV SCART RGB output is
not switching automatically.
CAUSE: The drive current of some television sets is not sufficient to switch
the RGB output.
SOLUTION:
Delete RE31 100 ohm resistor on video board.
Add a 10 ohm resistor between PIN 16 of SCART connector (one leg of RE31)
and +5V rail(one leg of R554) on video board. See photo and schematic
diagram.
Photo
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