Sharp 20MR10 Service Manual - Page 13

Description Of Schematic Diagram, Waveforms

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20MR10 DESCRIPTION OF SCHEMATIC DIAGRAM NOTES: 1. The unit of resistance "ohm" is omitted. (K=k =1000 , M=M ) 2. All resistors are 1/10 watt, unless otherwise noted. 3. All capacitors are µF, unless otherwise noted. (P=pF=µµF) 4. (G) indicates ±2% tolerance may be used. 5. indicates line isolated ground. VOLTAGE MEASUREMENTCONDITIONS: 1. All DC voltages are measured with DVM connected between points indicated and chassis ground, line voltage set at 120V AC and all controls set for normal picture unless otherwise indicated. 2. All voltages measured with 1000µ V B & W or Color signal. WAVEFORM MEASUREMENT CONDITIONS: 1. Photographs taken on a standard gated color bar signal, the tint setting adjusted for proper color. The wave shapes at the red, green and blue cathodes of the picture tube depend on the tint, color level and picture control. 2. indicates waveform check points (See chart, waveforms are measured from point indicated to chassis ground.) ! AND SHADED ( ) COMPONENTS = SAFETY RELATED PARTS. MARK= X-RAY RELATED PARTS. This circuit diagram is a standard one, printed circuits may be subject to change for product improvement without prior notice. WAVEFORMS 1.0 1.0 0.9 5.0 5.0 2.1 1.0 1.2 25 47 4.6 0.7 33 39.0 1160 220 150 133 220 1.7 0.7 1.4 105 95 105 13

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13
20MR10
DESCRIPTION OF SCHEMATIC DIAGRAM
NOTES:
1.
The unit of resistance "ohm" is omitted.
(K=k
=1000
, M=M
)
2.
All resistors are 1/10 watt, unless otherwise noted.
3.
All capacitors are μF, unless otherwise noted.
(P=pF=μμF)
4.
(G) indicates ±2% tolerance may be used.
5.
indicates line isolated ground.
VOLTAGE MEASUREMENTCONDITIONS:
1.
All DC voltages are measured with DVM connected
between points indicated and chassis ground, line
voltage set at 120V AC and all controls set for normal
picture unless otherwise indicated.
2.
All voltages measured with 1000μ V B & W or Color
signal.
WAVEFORM MEASUREMENT CONDITIONS:
1.
Photographs taken on a standard gated color bar
signal, the tint setting adjusted for proper color. The
wave shapes at the red, green and blue cathodes of
the picture tube depend on the tint, color level and
picture control.
2.
indicates waveform check points (See chart,
waveforms are measured from point indicated to
chassis ground.)
AND SHADED (
) COMPONENTS
= SAFETY RELATED PARTS.
MARK= X-RAY RELATED PARTS.
This circuit diagram is a standard one, printed
circuits may be subject to change for product
improvement without prior notice.
WAVEFORMS
1.2
1160
1.4
1.0
25
220
105
1.0
47
150
95
0.9
4.6
133
105
5.0
0.7
220
5.0
33
1.7
2.1
39.0
0.7
1.0
!