FUNAI LT850-M32 - Power Supply Block Diagram

9-6
A0CF3BLP
Power Supply Block Diagram
NOTE: The voltage for parts in hot circuit is measured using hot GND as a common terminal.
CAUTION ! For continued protection against fire hazard, replace only with the same type fuse.
CAUTION ! Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F601) is blown , check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.
HOT COLD
POWER SUPPLY CBA
POWER SW CBA
HOT CIRCUIT. BE CAREFUL.
Q602
SWITCHING
CONTROL
14
3 2
IC607
T601
TO INVERTER BLOCK DIAGRAM (CN1900)
CN600 CN601CN701
2
HOT-GND1
ACL2
LINE FILTER
L601, L602
AC701 AC CORD
BRIDGE RECTIFIER
D609- D612
4
3
16 15 10 14
9
13 12 11
6 7
FEED
BACK
Q601
SWITCHING
Q513, Q522
CN405 CN1001 CN402 CN3701
Q504, Q505
SWITCHING
Q509
SW-7V
Q503, D506
SW+16V
Q516
Q514
Q511
Q508
Q518
SW+5V
Q521
Q517
SW+9V
Q501
SW+16V
Q510,D526
Q503,D506
SW+3.3V
SW+3.3V
LINE FILTER
T602F601
T4A H 250V
P-ON-H1
TO SYSTEM CONTROL BLOCK DIAGRAM
P-ON-H2
PROTECT1
Q520
Q525
P-ON+5V AL+3.3V AL+13V P-ON+9V
13-16
12
2
8,9
10
27-29
LCD+16V LCD+6.8V INV+16V LCD+24V P-ON+3.3V AL+3.5V AL+5.5V AL+3.3V P-ON+3.3V P-ON+5V
INVERTER CBA
DIGITAL MAIN CBA UNIT
13
LCD-6.8V13 P-ON+3.3V13-16 P-ON+3.3V12
10
LCD+24V10
INV+16V2
LCD+16V8,9 AL+3.3V10
24,26
19-21
AL+5.5V24,26
AL+3.5V19-21 P-ON+5V27-29
Q405
SW+24V
Q526
AC-IN11 AC-IN22
SW701