28DVD-1720/556SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTSStandard NotesWARNINGMany electrical and mechanical parts in this chassishave special characteristics. These characteristicsoften pass unnoticed and the protection afforded bythem cannot necessarily be obtained by usingreplacement components rated for higher voltage,wattage, etc. Replacement parts that have these spe-cial safety characteristics are identified in this manualand its supplements; electrical components havingsuch features are identified by the mark " ! " in theschematic diagram and the parts list. Before replacingany of these components, read the parts list in thismanual carefully. The use of substitute replacementparts that do not have the same safety characteristicsas specified in the parts list may create shock, fire, orother hazards.Notes:1. Do not use the part number shown on these draw-ings for ordering. The correct part number is shownin the parts list, and may be slightly different oramended since these drawings were prepared.2. All resistance values are indicated in ohms(K=103 , M=106 ).3. Resistor wattages are 1/4W or 1/6W unless other-wise specified.4. All capacitance values are indicated in μF(P=10-6 μF).5. All voltages are DC voltages unless otherwisespecified.