Circuit Boards Location; Printed Wiring Boards And Schematic Diagrams - Sony TRINITRON KV-32V68 Service Manual

6-3. CIRCUIT BOARDS LOCATION

KV-32V68
HS
HV
P
KG
K

6-4. 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 specified.
• 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 / W in chip resistance.
4 8
10
• : nonflammable resistor.
• : fusible resistor.
• : internal component.
• : panel designation and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless other-
wise noted.
• The components identified by
carefully factory-selected for each set in order to satisfy regulations regarding
X-ray radiation.
Should replacement be required, replace only with the value originally used.
• When replacing components identified by
ments indicated. If results do not meet the specified value, change the compo-
nent identified by and repeat the adjustment until the specified value is
achieved. (Refer to R530 and R531 adjustment on Page 20.)
• When replacing the part in below table, be sure to perform the related adjust-
ment.
• 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.
Part replaced(
IC351,IC501,D519,D520,D521
C531,C532,R387,R529,R530,R531,
R532,R533,R550,T503......A BOARD
IC643,R661.......................G BOARD
C
B
WB
G
A
UV
AV
1 / W
4
in this basic schematic diagram have been
, make the necessary adjust-
) Adjustment(
R530,R531
KV-35V68
HV
P
KG
K
• All voltages are in V.
S : Measurement impossibility.
• : B+line.
v
• : B-line.
(Actual measured value may be different).
• : signal path. (RF)
• Circled numbers are waveform references.
Reference information
RESISTOR : RN
: RC
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW
: RS
: RB
:
COIL : LF-8L MICRO INDUCTOR
CAPACITOR : TA
: PS
: PP
: PT
: MPS
: MPP
: ALB
: ALT
: ALR
The symbol
The components identified by shading and mark
critical for safety. Replace only with part number specified.
The symbol
Replace only with fuse of same rating as marked.
)
Les composants identifiés per un tramé et une marque
sont critiques pour la sécurité. Ne les remplacer que par une
piéce portant le numéro spécifié.
Le symbole
etre remplacee par une fusible de meme yaleur, comme maque.
— 34 —
B
HS
WA
UV
AV
METAL FILM
SOLID
NONFLAMMABLE WIREWOUND
NONFLAMMABLE METAL OXIDE
NONFLAMMABLE CEMENT
ADJUSTMENT RESISTOR
TANTALUM
STYROL
POLYPROPYLENE
MYLAR
METALIZED POLYESTER
METALIZED POLYPROPYLENE
BIPOLAR
HIGH TEMPERATURE
HIGH RIPPLE
display is on the component side.
indicates a fast operating fuse.
indique une fusible a action rapide. Doit
C
G
A
are