Sony KS-50R200A Service Manual page 125

G Board
Primary area
AC Fuse, Line Filer Circuit.
Standby converter , Main Power Relay, AC Rectifier
PFC (Power Factor Correction)converter
390V for Lamp power source, for Main converter
Secondary area
Main converter:
11V, 7V, 9V for Signal part power source,
Audio_Vcc for the Audio amplifier,
16.5V for Panel driver on C board.
STBY5V for Standby operation
FAN Driver for Lamp_cooling-FAN, Lamp_exhaust-FAN, Panel_cooling-FAN
Line
AC in FUSE
Filter
110V
F6000
RY6004
L6001
L6002
240V
Standby
Converter
T6300
Primary area
380V
Description of Power Supply Board.
EX-Z Power Supply System (Current resonance converter)
Power Supply Block Diagram
Inrush limiting resister
SW
SW
Floating Vcc 18V
RY6003
Secondary area
16.5V- Rect
S3L20LF
D6201
AUDIO_Vcc- Rect
D4SBS6
D6202
Main
Converter
11V- Rect
T6200
D10SC6M
Q6100,Q6101
D6200,D6203
7V- Rect
D10SC6M
D6204,D6205
– 4-82 –
KS-50R200A/60R200A/70R200A
AC
Rectifier
PFC
D6000
Converter
L6507,D6506
Q6500,Q6505
9V Regulator
PQ200WNA
IC6202
RM-GA006 RM-GA006
DC390V
To Ballast ( for Lamp)
STBY 5V
PFC-DET
AC_RLY
16.5V
AUDIO_ Vcc (14.0V)
9V
11V
7V
G Board
RM-GA006