20AR20/20AR30
DESCRIPTION OF SCHEMATIC DIAGRAM
NOTES:WAVEFORM MEASUREMENT CONDITIONS:
1. The unit of resistance "ohm" is omitted.1. Photographs taken on a standard gated color bar
(K=k =1000 , M=M )signal, the tint setting adjusted for proper color. The
2. All resistors are 1/16 watt, unless otherwise noted.wave shapes at the red, green and blue cathodes of
3. All capacitors are ?F, unless otherwise noted.the picture tube depend on the tint, color level and
(P=pF=??F)picture control.
4. (G) indicates -2% tolerance may be used.2. indicates waveform check points (See chart,
5. indicates line isolated ground.waveforms are measured from point indicated to
G6. indicates hot ground.chassis ground.)
VOLTAGE MEASUREMENT CONDITIONS:AND SHADED ( ) COMPONENTS
1. All DC voltages are measured with DVM connected= SAFETY RELATED PARTS.
between points indicated and chassis ground, lineMARK= X-RAY RELATED PARTS.
voltage set at 110~220V AC and all controls set for
normal picture unless otherwise indicated.This circuit diagram is a standard one, printed circuits
2.FAll voltages measured with 1000? V B & W or Colormay be subject to change for product improvement
signal.without prior notice.
WAVEFORMS
15 |
ACEC
