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8-3
VPL-FX50
8-3
[Measuring conditions, voltage and waveform]
• A voltage value is the reference value between the measurement
point and the earth, when the NTSC color bar signal is received
from the color bar generator (digital multi-meter used: 10 M ohms/
V DC).
• A voltage value is the reference value between the measurement
point and the earth, when the NTSC color bar signal and RGB
color bar signal are received from the color bar generator (digital
multi-meter used: 10 M ohms/V DC).
• Unit of voltage is V (volt).
•
: B+line
: B– line
• Voltage variations may occur due to normal production tolerances.
• No mark : NTSC (3.58 MHz) color bar signal.
• [ ] : RGB color bar signal is received.
• Circled numbers indicate the reference waveform.
•
: Signal path.
8-2. Schematic Diagrams and
Printed Wiring Boards
Note:
• The parts marked “ # ” on schematic diagrams are not mounted.
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F 50WV or
less are not indicated except for electrolytics.
• All electrolytics are in 50 V unless otherwise specified.
•
: fusible resistor
•
: nonflammable resistor
•
: panel designation and adjustment for repair
• 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.
Содержание RM-PJM50
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Страница 39: ...2 1 VPL FX50 2 1 Circuit Boards Location Section 2 Service Information H N POWER GA C BB QC BC QA BA QB S GB ...
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Страница 178: ...Sony Corporation Communication System Solutions Network Company English 01BZ08 1 Printed in Japan 2001 2 9 929 698 01 ...