Diagrams; Circuit Board Location; Printed Wiring Boards And Schematic Diagrams; A Board - Sony TRINITRON KV-32HS20 Service Manual

5-1. CIRCUIT BOARDS LOCATION

W Board

S Board

HA Board

D 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 / W in resistance, 1 / W and 1 /
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)
Circled numbers are waveform references.
SECTION 5: DIAGRAMS

C Board

HB Board

B Board

U Board

1 / W
4
W in chip resistance.
8
KV-32HS20/36HS20/36HS20H/32XBR450/36XBR450/36XBR450H
The components identifi ed by shading and
only with part number specifi ed.
The symbol
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
fusible de meme yaleur, comme maque.
The components identifi ed by X in this basic schematic diagram have

BC Board

been carefully factory-selected for each set in order to satisfy regulations
regarding X-ray radiation. Should replacement be necessary, replace

A Board

only with the value originally used (Refer to Safety Related Adjustments
on page 17).
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 identifi ed by X and repeat the adjustment until
the specifi ed value is achieved.
When replacing the parts listed in the table below, it is important to
perform the related adjustments.
Part Replaced (Y)
D BOARD:
D8004, D8014, IC6503, IC8001,
IC8003, IC8004, R6590, 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 —
!
symbol are critical for safety. Replace
indicates a fast operating fuse and is displayed on the component
indique une fusible a action rapide. Doit etre remplace par une
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
!
sont critiques pour la