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7-3
VPL-HS1
7-3
[Measuring conditions, voltage and waveform]
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. A voltage value is the reference value between the measurement
point and the earth, when the RGB color bar signal is received
from the color bar generator (digital multi-meter used: 10 M ohms/
V DC).
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. Unit of voltage is V (volt).
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. : B+line
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. : B– line
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. Voltage variations may occur due to normal production tolerances.
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. : Measurement disabled.
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. Circled numbers indicate the reference waveform.
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. : Signal path.
Les composants identifiés par la marque !
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
Note:
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. Parts marked “ * ” differ according to the model/destination. Refer
to the mount table for each function.
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. The parts marked “ # ” on schematic diagrams are not mounted.
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. All capacitors are in µF unless otherwise noted. pF: µµF 50WV or
less are not indicated except for electrolytics.
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. All electrolytics are in 50 V unless otherwise specified.
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. : fusible resistor
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. : nonflammable resistor
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. ∆ : internal component
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. : panel designation and adjustment for repair
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. Caution when replacing chip parts
New parts must be attached after removal of the chip.
Be careful not to heat the minus side of a tantalum capacitor, be-
cause it is easily damaged by the heat.
Reference information
RESISTOR RN : METAL FILM
RC : SOLID
FPRD : NONFLAMMABLE CARBON
FUSE : NONFLAMMABLE FUSIBLE
RS : NONFLAMMABLE METAL OXIDE
RB : NONFLAMMABLE CEMENT
RW : NONFLAMMABLE WIREWOUND
: ADJUSTMENT RESISTOR
COIL LF-8L : MICRO INDUCTOR
CAPACITOR TA : TANTALUM
PS : STYROL
PP : POLYPROPYLENE
PT : MYLAR
MPS : METALIZED POLYESTER
MPP : METALIZED POLYPROPYLENE
ALB : BIPOLAR
ALT : HIGH TEMPERATURE
ALR : HIGH RIPPLE
The components identified marked ! are
critical for safety.
Replace only with the part number specified.
7-2. Schematic Diagrams and
Printed Wiring Boards