Sony TRINITRON KV-27V45, Руководство по обслуживанию

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6-2. Circuit Boards Location
IC301,IC521,IC603, DY, D573, D574
C505, C507, C508, C509, C511,
C515, C520, C572, C573, C574,
C575, L591, L501, R582, R583,
R585, R586, R578, R579, T504 (FBT)
IC603, IC601, R699
Part replaced (
]
)
• All voltages are in V.
• Voltage is DC with respect to ground unless otherwise
noted.
• Readings are taken with a 10M
Ω
digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal produc-
tion tolerance.
• Circled numbers are waveform references.
• : B + Line
• : B - Line
•
m
: signal path
Reference Information
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NON FLAMMABLE CARBON
: FUSE NON FLAMMABLE FUSIBLE
: RW NON FLAMMABLE WIREWOUND
: RS NON FLAMMABLE METAL OXIDE
: RB NON FLAMMABLE CEMENT
: 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
- - - - -
Pitch: 5mm
Rating electrical power 1/4W
• All resistors are in ohms.
K
Ω
=1000
Ω
, M
Ω
=1000K
Ω
•
f
nonflammable resistor.
•
∆
: internal component.
•
p
: panel designation and adjustment for repair.
• All variable and adjustable resistors have charac-
teristic curve B, unless otherwise noted.
• The components identified by
]
in this manual have
been carefully factory-selected for each set in order to
satisfy regulations regarding X-ray radiation. Should
replacement be required, replace only with the value
originally used.
• When replacing components identified by
]
make the
necessary adjustments indicated. If results do not
meet the specified value, change the component
identified by
[
and repeat the adjustment until the
specified value is achieved.
(Refer to R584 on page 27 and 28).
• When replacing parts in the table below be sure to
perform the related adjustment.
6-3. Printed Wiring Boards and Schematic
Diagrams
Note:
•
All capacitors are in
µ
F unless otherwise noted.
pF:
µµ
F 50V or less are not indicated except
for electrolytic and tantalums.
• All electrolytics are 50V unless otherwise specified
• Indication of resistance, which does not have one for
rating electrical power, is as follows:
Adjustment (
[
)
HV HOLD-DOWN
(R584)
B+ VOLTAGE
CONFIRMATION
— 38 —
Note: The symbol
G
display is on the component side.
The components identified by shading and mark
¡ ¡ ¡ ¡ ¡
are
critical for safety. Replace only with part number
specified.
The symbol
G
indicates fast operating fuse.
Replace only with fuse of same rating as marked.
HZ
(KV-29VL65A)
P
K
E
(27V65/29VL65A/29VL65C/
29VL95/27V45/29VL85)
CV
HV
(27V65/29VL65A/
29VL65C/29VL95)