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8-1
PFM42B1, PFM-42B1E
8-1
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Section 8
Diagrams
[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 NTSC color bar signal, RGB color
bar signal and YUV signal are 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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. No mark : RGB color bar signal.
• Circled numbers indicate the reference waveform.
• : 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,
because 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.