Relay Board - Sony HCD-HDX285 Service Manual

HCD-HDX285/HDX287WC/HDX585/HDX587WC/HDX589W/HDX685/HDX686W
IC3100, 3150, 3200, 3250, 3300, 3400, 3500 CXD9936TN
NC
1
NC 2
BST_A 3
GVDD_A
4
/OTW 5
VREG
/SD 6
/RESET 7
PWM_A 8
Programmable
OC_ADJ
9
Current sense
GND
10
Temperature
waming/error
Protection
AGND
11
and
Reset /HIZ_HS_X
Logic
/HIZ_LS_X
12
VREG
/OCH_X
/OCL_X
M3
13
/RESET_X
OLP
/PCR
Power-Up
14
M2
OTP
Reset
CB3C
/UVP
15
M1
/UVP_VREG
PWM_B
16
VREG
VDD 17
REG
GND 18
GVDD_B
19
BST_B
20
NC 21
NC 22
– RELAY Board –
IC701, 711 BA6956AN
TSD
1 2 3 4 5
64
/HIZ_HS_A
/HIZ_LS_A
Stuck
Detect
Protection
Logic
Timing
Control
/OCH_A
/OCL_A
/RESET_A
/UVP
VREG
Under
GVDD_A
Voltage
Protection GVDD_B
/HIZ_HS_B
/HIZ_LS_B
Timing
Protection
Control
Stuck
Detect
/OCH_B
/OCL_B
/RESET_B
CONTROL LOGIC
6 7 8 9
Over
Current
Fault
Gate
Drive
Gate
Drive
Over
Current
Fault
Over
Current
Fault
Gate
Drive
Logic
Gate
Drive
Over
Current
Fault
– S-AIR INCLUDE Board –
IC800 TK11133CSCL-G
5
OVER CURRENT
CONTROL
CIRCUIT
BANDGAP
REFERENCE
1 2
44
PVDD_A
43 PVDD_A
42 PVDD_A
41 PVDD_A
PVDD_A
40
39 PGND
38 PGND
37 PGND
36 OUT_A
35 OUT_A
OUT_A
34
33 OUT_B
32
OUT_B
31 OUT_B
30 PGND
29 PGND
28 PGND
27 PVDD_B
26 PVDD_B
25 PVDD_B
PVDD_B
24
23 PVDD_B
4
OVER HEAT &
PROTECTION
–
+
3