Sony Trinitron CPD-G220R, Руководство по обслуживанию

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CPD-G220R/G220S
4-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS INFORMATION
All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less
are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise speci
fi ed.
All resistors are in ohms. K Ω =1000 Ω , M Ω =1000k Ω
Indication of resistance, which does not have one for rating electrical
power, is as follows:
Pitch : 5mm
Rating electrical power :
1
/
4
W
1
/
4
W in resistance,
1
/
10
W and
1
/
8
W in chip resistance.
: non fl ammable resistor.
: fusible resistor.
: internal component.
: panel designation and adjustment for repair.
All variable and adjustable resistors have characteristic curve B, unless
otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10M
Ω digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production tolerances.
All voltages are in V.
S : Measurement impossibillity.
: B+line.
: B-line. (Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.
4-1. CIRCUIT BOARDS LOCATION
RESISTOR
: RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW NONFLAMMABLE WIREWOUND
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
:
ADJUSTMENT RESISTOR
COIL
: LF-8L MICRO INDUCTOR
The components identi fi ed by shading and
!
symbol are critical for safety. Replace
only with part number speci fi ed.
The symbol indicates a fast operating fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
Les composants identi fi es per un trame et une marque
!
sont critiques pour la
securite. Ne les remplacer que par une piece portant le numero speci fi e.
Le symbole indique une fusible a action rapide. Doit etre remplace par une
fusible de meme yaleur, comme maque.
The components identi fi ed by
X
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
necessary, replace only with the value originally used.
When replacing components identi fi ed by
Y
, make the necessary
adjustments as indicated. If the results do not meet the speci fi ed value,
change the component identi fi ed by
X
and repeat the adjustment until
the speci fi ed value is achieved.
When replacing the parts listed in the table below, it is important to
perform the related adjustments.
CAPACITOR
: TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
H1 Board
U Board
A Board
D Board
SECTION 4: DIAGRAMS
Part Replaced ( )
HV ADJ
RV501
Part Replaced ( )
D board T501, IC501, RV501, R540,
R541, R542, R544, R564, R567,
R568, C532, C534, C539, C553,
C554, C555, C556, C558, C561 HV Regulator
Circuit
D board T501, R510, R543, R547, R549,
R552, R595, D515, D517, C540,
C542, C544, IC607, IC901, C951 HV HOLD
DOWN Circuit
D board T501, R545, R546, R548, R550,
R596, R934, C535, C541, IC605,
IC607, IC901 Beam Current
Protector Circuit
REFERENCE INFORMATION