Sony DFX-51 User Manual

Page of 54
DXF-51
[Measuring conditions, voltage and waveform]
.....
A voltage value is the reference value between the measurement
point and the earth, when the color bar signal is received from the
color bar generator. (digital multi-meter used: 10 M ohms/V DC)
.....
Unit of voltage is V (volt).
(Voltage variations may occur due to normal production tolerances.)
.....
: B line
.....
No mark : Color bar signal.
.....
Circled numbers indicate the reference waveform.
.....
: Signal path.
Les composants identifiés par la marque 
!
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
Section 8
Diagrams
Note:
.....
Parts marked “ 
*
 ” differ according to the model/destination. Refer
to the mount table for each function.
.....
All capacitors are in 
µ
F unless otherwise noted. pF: 
µµ
F 50WV or
less are not indicated except for electrolytics.
.....
All electrolytics are in 50 V unless otherwise specified.
.....
: fusible resistor
.....
 
: nonflammable resistor
.....
    
: internal component
.....
  
: panel designation and adjustment for repair
.....
Caution when replacing chip parts
New parts must be attached after removal of the chip.
Be careful not to heat the minus side of a tantalum capacitor,
because it is easily damaged by the heat.
Reference information
RESISTOR
RN
: METAL FILM
RC
: SOLID
FPRD
: NONFLAMMABLE CARBON
FUSE
: NONFLAMMABLE FUSIBLE
RS
: NONFLAMMABLE METAL OXIDE
RB
: NONFLAMMABLE CEMENT
RW
: NONFLAMMABLE WIREWOUND
: 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
• The components marked 
 in this schematic diagram have been
carefully factory-selected for each set in order to satisfy regulations
regarding X-ray radiation.
• When replacing components marked 
 , make the necessary ad-
justments indicated. If results do not meet the specified value,
change the component marked 
 and repeat the adjustment until
the specified value is achieved.
• When replacing a part shown in the table below, be sure to perform
the related adjustment.
The components identified marked 
!
 are
critical for safety.
Replace only with the part number specified.
            
            
            
            
            
8-1
8-1