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Commodore 1960 - Alignment and Adjustment

Commodore 1960
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ALIGNMENT AND ADJUSTMENT
1. ADJUSTMENT CONDITIONS
1960 SERVICE MANUAL
Power Supply: AC 220V, 60 Hz
Warm-up Time: The monitor should be powered on for at least 15 minutes
before any adjustments are made, except for convergence, when 30 minutes
are required.
Signal Input:
1. Video: RGB Analog, 0.7 Vp-p, positive;
RGB TTL positive.
2. Sync.: Horiz. and Vert, separated, positive or negative.
3. Scanning Frequencies: FH: 15.75 to 38 KHz/ 15.75 to 45 KHz
FV: 50 - 87 Hz
4. All adjustments should be made using a signal of FH=31.468 KHz,
unless otherwise defined.
2. Parameter list of signal timings generated:
1024x768 Interlaced Mode: (35.52 KHz)
Horiz. Sync. Polarity
POS
Vert. Sync. Polarity POS
Total PELs per Line
1264
Active PELs per Line
1024
Line Blanking Time (PELs)
240
Line Sync. Pulse Width (PELs)
176
Line Front Porch Width (PELs) 8
Line Back Porch Width (PELs) 56
Total Lines per Frame
817
Active Lines per Frame
768
Fields per Frame
2
Field Blanking Time (E/O Lines)
25/24
Field Sync. Pulse Width (E/O Lines)
4
Field Front Porch Width (E/O Lines)
0.5/0.0
Field Back Porch Width (E/O Lines) 20.5/20
PEL Time (ns)
22.27
Total Line Time (us)
28.15
Total Frame Time (ms) 23.00
Frame Rate (Hz) 43.48
6

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