Sony SSM-Q177 Service Manual page 52

9-2. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics.
• All electrolytics are in 50 V unless otherwise specified.
• All resistors are in ohms, 1/4 W in resistance, 1/10W in chip
resistance.
kΩ = 1000 Ω, MΩ = 1000k Ω
•
: nonflammable resistor.
•
: fusible resistor.
•
: internal component.
•
: panel designation and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
• The components identified by
in this basic schematic diagram
have been carefully factory-selected for each set in order to satisfy
requlations regarding X-ray radiation.
Should replacement be required, replace only with the value
originally used.
• When replacing components identified by
, make the necessary
adjustments indicated. If results do not meet the specified value,
change the component identified by and repeat the adjustment
untill the specified value is achieved.
(Refer to R406 adjustment on Page 3-1.)
• When replacing the part in below table, be sure to perform the
related adjustment.
Part replaced ( ) Adjustment ( )
R406, R408, C410, C414, C415, HOLD-DOWN
D405 (A Board), CONFIRMATION AND
READJUSTMENT (R406)
L901 (DY)
• Voltage value is the reference value between it and the earth, when
NTSC color bar signal is received from color bar generator ( digital
multi-meter used : 10M ohms/V DC ) .
• Unit of voltage values is V ( volt ) .
•
* : Measurement disabled.
• Circled numbers are waveform references.
•
: Signal Path.
Reference information
RESISTOR RN : METAL FILM
RC : SOLID
FPRD : NONFRAMMABLE 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 identified ! marked are
critical for safety.
Replace only with the part number specified.
Les composants identifiés par la marque !
sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spécifié.
9-2
C, F, L, S, V
S
– B SIDE –
V
– B SIDE –
F
– A SIDE –
9-2
L
– B SIDE –
C
– B SIDE –
F
– B SIDE –
SSM-Q177/Q177CE