Circuit Boards Location; Schematic Diagram - Sony KV-XA25M50 Service Manual

6-2. CIRCUIT BOARDS LOCATION

H
D3
A
(KV-XA29M50/XA29M80
/XA29M90/XA29N90)
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KV-XA25M50/XA25M80/XA29M50
RM-954
KV-XA29M80/XA29M90/XA29N90
RM-954 RM-914
C6
VM1
F
B
J (KV-XA29M50/XA29M80/
B1
XA29M90/XA29N90)
J1 (KV-XA25M80/XA25M50)
KV-XA25M50/XA25M80/XA29M50
RM-954
KV-XA29M80/XA29M90/XA29N90
RM-954 RM-914

6-3. SCHEMATIC DIAGRAM

Note:
• All capacitors are in µF unless otherwise noted.
• All electrolytic capacitors are rated at 50V unless otherwise
noted.
• All resistors are in ohms.
kΩ = 1000Ω, MΩ = 1000kΩ
• Indication of resistance which does not have rating electrical
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
• : nonflammable resistor.
• ¢ : internal component.
• : panel designation or adjustment for rrepair.
• All variable and adjustable resistors have characteristic curve
B unless otherwise noted.
• Redings are taken with a color-bar signal input.
no mark : Common
underline : PAL
( ) : SECAM
[ ] : NTSC 3.58
<< >> : NTSC 4.43
• Readings are taken with a 10M digital m ultimeter.
• Voltage are dc with respect to ground unless otherwise
noted.
• Voltage variations may be noted due to normal produc-
tion tolerances.
• All voltage are in V.
✽
• : Cannot be measured.
• Circled numbers are waveform references.
• : B +bus.
• : B –bus.
÷
• : signal path.
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
Note: The component identified by shading and
mark ! are critical for safety. Replace only
with part number specified.
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