Ic Block Diagrams; Main Board - Sony HCD-FX900W Service Manual

• IC Block Diagrams

– RELAY Board –
IC701, 711, 721 BA6956AN
1 2 3 4
– MAIN Board –
IC3100, IC3150, IC3200, IC3250, IC3300, IC3400, IC3500 CXD9883M
BST_A 1
GVDD_A 2
/OTW 3
/SD 4
/RESET 5
PWM_A 6
OC_ADJ
7
GND
8
AGND
9
10
VREG
M3
11
12
M2
13
M1
PWM_B
14
VDD
15
GND 16
GVDD_B
17
BST_B
18
TSD
CONTROL LOGIC
5 6 7 8 9
VREG
Stuck
Detect
Timing
Control
Programmable
Current sense
Temperature
waming/error
Protection
and
Reset /HIZ_HS_X
Logic
/HIZ_LS_X
/UVP
/OCH_X
/OCL_X
/RESET_X
Under
Voltage
OLP
/PCR
Power-Up
Protection
OTP
Reset
CB3C
/UVP
/UVP_VREG
Timing
Control
VREG
Stuck
REG
Detect
– DMB12 Board –
IC150, IC705 SN74LVC1G08DCKR
A 1
2
B
3
GND
Gate
Drive
/HIZ_HS_A
/HIZ_LS_A
Protection
Logic
/OCH_A
/OCL_A
Gate
Drive
/RESET_A
VREG
GVDD_A
GVDD_B
Gate
Drive
/HIZ_HS_B
/HIZ_LS_B
Protection
Logic
/OCH_B
/OCL_B
Gate
Drive
/RESET_B
HCD-FX900W
5 Vcc
4
Y
36
PVDD_A
Over
Current
Fault
35 PVDD_A
PVDD_A
34
33 PGND
32 PGND
31 PGND
30
OUT_A
29
OUT_A
OUT_A
28
Over
Current
Fault
27 OUT_B
Over
Current
26
OUT_B
Fault
25
OUT_B
24 PGND
23 PGND
22 PGND
21 PVDD_B
20 PVDD_B
19 PVDD_B
Over
Current
Fault
79