Section 5: Diagrams; Circuit Boards Location; Printed Wiring Board And Schematic Diagram Information - Sony Trinitron KV-27FS120 Service Manual

5-1. CIRCUIT BOARDS LOCATION

KV-27FS120 Pictured
HR Board & K Board
(KV-29FA310 Only)
HS Board (All Except KV-29FA310)
HU Board (KV-29FA310 Only)
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 specifi 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 1
/ W in resistance, / W and
4 10
: nonfl 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.
KV-27FS120/29FA310/29FS120

SECTION 5: DIAGRAMS

A Board
1
/ W in chip resistance.
8
CW Board
V Board
The components identifi ed by
diagram have been carefully factory-selected for each set
in order to satisfy regulations regarding X-ray radiation.
D Board
Should replacement be necessary, replace only with the
(All Except KV-29FA310)
value originally used.
GD Board
(KV-29FA310 Only)
When replacing components identifi ed by
adjustments as indicated. If the results do not meet the specifi ed value,
change the component identifi ed by
the specifi ed value is achieved.
(Refer to Section 3: Safety Related Adjustments on Page 17.)
When replacing the parts listed in the table below, it is important to
perform the related adjustments.
Part Replaced (Y)
DY, T585, CRT, IC001, IC561,
IC600, IC604, C506, C507,
C508, C510, C511, C513,
C514, L588, D566, D567,
D568, PH602, R526, R564,
R565, R566, R851, T510,
T511..........A Board
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
KV-27FS120/29FA310/29FS120
The components identifi ed by shading and
for safety. Replace only with part number specifi 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 identifi es per un trame et une marque
critiques pour la securite. Ne les remplacer que par une piece
portant le numero specifi e.
Le symbole indique une fusible a action rapide. Doit etre
remplace par une fusible de meme yaleur, comme maque.
in this basic schematic
, make the necessary
and repeat the adjustment until
Adjustment (X)
HV HOLD-DOWN
R564
CAPACITOR
: TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
symbol are critical
sont
35