Sony WEGA KV-27FS100L, Service Manual

Page: 29 / 200

— 29 —
KV-27FS100L/29FS100L
5-1. CIRCUIT BOARDS LOCATION
5-2. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM 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=1000, M=1000k
Indication of resistance, which does not have one for rating electrical
power, is as follows: Pitch : 5mm Rating electrical power :
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.
: earth ground
: earth-chassis
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 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.
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.
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. (Refer to Section 3: Safety Related
Adjustments on Page 15.)
When replacing the parts listed in the table below, it is important to
perform the related adjustments.
Part Replaced ( ) Adjustment ( )
DY, T585, CRT, IC001, IC561,
IC600, IC604, C506,C507,C508,
C510, C511, C513, C514, L588,
D565, D566, D567,PH602,R564,
R585, R588,R628, R851,T510,
T511....................A Board
HV HOLD-DOWN
R564
REFERENCE INFORMATION
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
CAPACITOR : TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
SECTION 5: DIAGRAMS
A Board
CV Board
D Board
Y
V Board
HS Board