Block Diagram -Display/Power Section - Sony HCD-EX66 Service Manual

5-3. BLOCK DIAGRAM –DISPLAY/POWER Section –
ND301
LIQUID
CRYSTAL
DISPLAY
PANEL
S301,303–309,
312–316
KEY MATRIX
REMOTE CONTROL
3
SIGNAL RECEIVER
IC301
X301
32.768kHz
X302
20MHz
E+4V
D301,302
LED
LCD BACK
DRIVER
LIGHT
Q303
+5.7V REG
+9V
Q301
DIMMER
CONTROL
Q302
D303,305,307, LED
309,310 DRIVER
Q304
RESET
IC307
+3.3V(A) 2 VDD OUT 1
RESET
Q310
I-RST
C
CD SECTION
(Page 17)
HCD-EX66/EX88/EX99
SYSTEM CONTROL
IC302 (3/3)
PVDD
OVER CURRENT
DETECT
I-PROTECT-F 27
Q600,601 (EX88)
45
Q602,603 (EX99)
SEG0
I
PROTECT-F
53
I
D
56
SEG32
I
TUNER/AUDIO CONTROL
79
SECTION
(Page 18)
83 COM3
I
I CONTROL
COM0
86
+12V REG
IC602 (EX88)
IC602 (EX99)
26 I-KEY0
25 I-KEY1
+12V 4 VOUT
VCONT
24 I-KEY2
1
POWER
CONTROL
Q602,603 (EX88)
29 I-RMC
Q600,601 (EX99)
12 SUB CLOCK EX88/EX99
13 SUB CLOCK
15 MAIN CLOCK
POWER
CONTROL
Q970
16 MAIN CLOCK
VOLTAGE DETECT
IC604
43 O-LCD-LED
1 OUT VDD
37
O-MAIN-ON
+12V REG
+12V 3
IC602
5 O-DIMMER
I-V2-MONI 34 1 OUT VDD 2
10 O-VOL-LED
O-STBY-SW 42
+3.3V(C)
28 I-AC-CUT
O-SUB-ON 38
39
O-VBUS-ON
I-VBUS-OCP 40
T901
DC-DC CONVERTER
RECT
TRANSFORMER (MAIN)
D943
VOLTAGE
4
DETECT
D941 POWER
VREF
IC932 (EX88) ON/OFF
K
IC932 (EX99) Q932
3
POWER
PH930
ISOLATION
Q934,935
D937
VOLTAGE
POWER
PH931 DETECT
ISOLATION Q930
Q933
T903
DC-DC CONVERTER
TRANSFORMER (SUB)
V2
RECT
VIN 2
D981
D967
4
VOLTAGE
VREF
DETECT
+19V REG (EX88)
K D970
IC966 (EX88)
+22V REG (EX99)
IC966 (EX99)
3
Q965
D972
PH965
ISOLATION
T901
RECT
DC-DC CONVERTER
D967
F931
TRANSFORMER
V2
PVDD
RECT
D965
4
D940 +22V
VOLTAGE
VREF
LIMITER
DETECT
K
Q930
2
IC932
3
D934
PH930
ISOLATION
POWER
1 PVDD
CONTROL
Q601,602
VOLTAGE DETECT
IC603 (EX66)
IC603 (EX88)
E+4V
IC603 (EX99)
V2
+3.3V(A)
+9V REG
+3.3V(B)
IC701 (EX66)
D315
IC701 (EX88)
IC701 (EX99)
STANDBY
+9V 3 1
CONTROL
Q308,309
+13V
M+7V
POWER
CONTROL
Q702,703
VBUS+5V
VBUS OCP
DETECT
Q704
19 19
1 D
DC-DC
4 VCC
CONVERTER
IC931 (EX88)
IC931 (EX99)
6 FB
L901,902 (EX88/EX99)
OCP/BD RECT
7
L903 (EX66)
D901 (EX88)
L904 (EX66: EA MODEL)
D902 (EX66/EX99)
F901
TH901 (EX66)
TH902 (EX88/EX99)
DC-DC
1 D
CONVERTER
IC965 (EX88)
IC965 (EX99)
3 VCC/OVP
6 BD
5 FB/OLP
A
EA S A
1 D
DC-DC
CONVERTER
IC930
3 VCC/OVP
6 BD
5 FB/OLP
EX66
+4V REG
IC700 (EX66)
IC700 (EX88)
IC700 (EX99)
V2
4 VOUT VIN 2
POWER
CONTROL
Q700,701
+7V REG
IC702 (EX66)
IC702 (EX88)
1
IC702 (EX99)
VC
4 VOUT VIN 2
EX88/
5
EX99
SS
2 SW IN 1
EX66
PVDD
VBUS+5V REG
IC703 (EX66)
IC703 (EX88)
IC703 (EX99)
HCD-EX66/EX88/EX99
AC IN ~