···········-····------------·-·-······-····················---·-················-·······-········
-51-
SONY-SP0402 I Druck 9
6-3. CIRCUIT
BOARDS
LOCATION
X
G
c
H
J
Q
S {PVM-20M2U/20M4U)
A
6-4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note:
• All capacitors are in
~F
unless otherwise noted.
pF:
~~F
50
WV
or
less are not indicated except for electrolytics.
•
Indication of resistance, which does not have one for rating
electrical power. is as
follows.
Pitch: 5 mm
Rating
electrical power
Y.
W
• All resistors are in ohms.
•
~
: nonflammable resistor.
•
~
: fusible resistor.
•
6.
: internal component.
•
r:=J
: panel designation. and adjustment for repair.
• All variable and adjustable resistors have characteristic curve
B.
unless otherwise noted.
• The components identified by 8
in
this basic schematic
diagram 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.
• All
vo~ages
are in V.
•
Vo~age
are
de
with respect to ground unless otherwise noted.
• Readings
are
taken with a color-bar signal input.
• Voltage variations may
be
noted due to normal production
tolerances.
•
-:B+bus.
•
---
:
8-
bus.
•
_.,
...
,.,.,.,.,.,._,,.,
...
: signal path.
• No mark : with
PAL
colour-bar signal sreceived
or
common
voltage.
•
For the respective voltage ratings
in
SECAM. NTSC 3.58, NTSC 4.43
S-VIDEO, and ANALOG RGB modes, see the table
Reference
information
RESISTOR : RN METAL FILM
:
RC
SOLID
: FPRO
NONFLAMMABLE CARBON
:FUSE
NONFLAMMABLE FUSIBLE
:RW
NONFLAMMABLE WIREWOUNO
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE
CEMENT
•
When replacing components identified by
~
, make the
necessary adjustments indicated.
If results
do
not meet the
specmed value, change the component identffied by B and
repeat the adjustment
until the specified value is achieved.
(Refer to R1536 adjust on Page 25 and 26.)
COIL
CAPACITOR
: LF-BL
:
TA
MICRO INDUCTOR
TANTALUM
• When replacing the part in below table. be sure
to
perform the
related adjustment.
Part replaced
(~)
Adjustment
(8)
C512, C513, C523, C549, C592, D501,
D533, IC500, IC507,
0500,
0511,
R506,
R1536
R508, R515, R516, R517, R518, R519,
(HOLD-DOWN)
R551, R1537, R1560··········· (A BOARD}
-52-
: PS
STYROL
:
pp
POLYPROPYLENE
:
PT
MYLAR-
:
MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
:ALB
BIPOLAR
:
ALT
HIGH TEMPERATURE
: ALR
HIGH
RIPPlE
Note: Les composants identifi6s par une trame
et
par
une
marque
&,
sont
d'une
importance
critique
pour
Ia
s6curit6.
Ne
les remplacer
aue
par
des
pillces
de
nurn6ro sp6cifi6.
-53-
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