— 34 —
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
/
4
W
•
1
/
4
W in resistance,
1
/
10
W and
1
/
8
W in chip resistance.
•
: 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
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 required, replace only with the value originally used.
• When replacing components identified by
, make the necessary adjust-
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.
• 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
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
R530,R531
Part replaced(
) Adjustment(
)
IC351,IC501,D519,D520,D521
C531,C532,R387,R529,R530,R531,
R532,R533,R550,T503......A BOARD
IC643,R661.......................G BOARD
6-3. CIRCUIT BOARDS LOCATION
KV-35V68
The symbol
display is on the component side.
The components identified by shading and mark
are
critical for safety. Replace only with part number specified.
The symbol
indicates a fast operating fuse.
Replace only with fuse of same rating as marked.
C
A
G
HV
P
B
HS
WB
UV
K
AV
KV-32V68
KG
C
A
G
HV
P
B
HS
WA
UV
K
AV
KG
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
indique une fusible a action rapide. Doit
etre remplacee par une fusible de meme yaleur, comme maque.