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Old 05-15-2018, 10:13 PM
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old_tv_nut old_tv_nut is offline
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Join Date: Jul 2004
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The Admiral service manual supplement for the first Admiral 21 inch color set says it had a test point that would shift the phase of the horizontal for use with the stripe:

COLOR STRIPE TEST
A test point is provided on the rear apron of the chassis to test for color reception in those areas where color stripes are transmitted during black and white transrnission, see Figure 27.
To make color stripe test, proceed as follows:
a. Tune in station transrnitting black and white picture with color stripes.
b. Short test point to chassis ground with clip lead or screwdriver (picture will shift toward the left and perrnit easy viewing of stripe on the right side).
c, If necessary, readjust Fine Tuning control, with Color Intensity control set to near maximum.
Stripe should appear in color. If not, receiver is not reproducing color.
d. To check color intensity, vary Color Intensity control from minimurn to maximum, At maximum, color of stripe should appear vivid and at minimum, no color at all.
e. To check color fidelity, vary Color Fidelity control throughout its range. At some setting,
stripe should appear yellowish-green; if not, receiver will not reproduce correct colors.
f. If color stripe appears to contain colored bars, which repeatedly keep changing color (similar to
barber pole), receiver is not in "Color Sync." See Color Sync Alignment in Service Manual No. s592.
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Last edited by old_tv_nut; 05-15-2018 at 10:21 PM.
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