Diagrams; Circuit Boards Location; Printed Wiring Board And Schematic Diagram Information - Sony TRINITRON KV-42DRC700 Service Manual

5-1. CIRCUIT BOARDS LOCATION

W Board
DH Board
HA Board
5-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
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 1
/ W, / W in resistance, / W and
4 4 10
: nonfl 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 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)
SECTION 5: DIAGRAMS
S Board
U Board
D Board
1
/ W in chip resistance.
8
Circled numbers are waveform references.
C Board
The components identifi 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,
HB Board
replace only with the value originally used (Refer to
Safety Related Adjustments on page 18).
B Board
When replacing components identifi ed by Y, make the
necessary adjustments as indicated. If the results do
not meet the specifi ed value, change the component
BC Board
identifi ed by X and repeat the adjustment until the
specifi ed value is achieved.
A Board
When replacing the parts listed in the table below, it is
important to perform the related adjustments.
The components identifi ed by shading and
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 par un trame et une marque
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.
Part Replaced (Y)
D BOARD:
IC6503, IC8001, IC8003, IC8004,
D8004, D8014, R8016, R8021,
R8028, R8041, R8042, R8044,
R8072, R8073, R8074, R8077,
R8078, R8080, R8081, R8082,
R8091, R8095
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
— 48 —
KV-42DRC700
!
symbol are critical for safety. Replace
!
sont critiques pour la
Adjustment (X)
D BOARD:
RV8001, RV8002
CAPACITOR
: TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE