Sony FW-43BZ35F Service Manual page 21

1.3 No Power – DDCON/LDO
Check item summary
Board IC Ref
LD2
BCH IC402
BCH IC403
BCH Q407
BCH IC405
BCH IC404
BCH IC409
BCH IC410
BCH IC601
BCH IC602
BCH IC603
BCH IC604
BCH IC605
BCH IC606
BCH IC607
Voltage supply
+12V_MAIN (AC-ADP only)
+5.0V_VBUS/+5V_MAIN
+3.3V_STBY (AC-ADP only)
/+3.3V_MAIN
+3.3V_MAIN
+1.8V_TU/+1.8V_BE
+1.0V_BE
+1.5V_FRC
+0.95V_FRC
+1.5V_DDR
+1.05V_M2_STBY
+1.05V_M2_A_1
+1.0V_M2
+1.05V_M2_ST_ET
+1.05V_M2_A_2
VCC3IO_EMMC (1.8V)
Output ref. Enable pin
C430 R455
C445 R467
Q406
C463 IC405 #PIN5
C456 R480(No M't)
C478 IC409 #PIN5
C493 R506
C609 C605
C611 IC602 #PIN3
C613 IC603 #PIN3
C625 R623
C631 IC605 #PIN3
C633 IC606 #PIN3
C635 IC607 #PIN3
Enable source Fuse
P-on u-com IC401 #pin10
P-on u-com IC401 #pin13
R464 (POWER_MAIN)
P-on u-com IC401 #pin13
P-on u-com IC401 #pin12
P-on u-com IC401 #pin12
P-on u-com IC401 #pin13
P-on u-com IC401 #pin13
R603 (3.3V or 5V)
C610 (+3.3V _STBY)
P-on u-com IC401 #pin13
P-on u-com IC401 #pin12
M2 IC1000 #AP34
P-on u-com IC401 #pin13
P-on u-com IC401 #pin13
Vcc ref.
F400 C423
F401 C436
C445
F403 C461
F402 C454
F404 C476
F405 C485
- C602
- C610
- C612
F600 C618
- C630
- C632
- C634
21
SYS SET