Block Diagram - Panel Section - Sony HCD-GX450 Service Manual

4-4. BLOCK DIAGRAM – PANEL SECTION –
FL701
FLUORESCENT
INDICATOR
TUBE
D601 – 606
LED DRIVE
(ILLUMINATION LIGHT)
Q601 – 606
S611 – 618,
S621 – 625,
S631 – 638,
S641 – 647,
SW601
HCD-GX450
FL/LED DRIVER SYSTEM CONTROLLER
IC701 IC901 (4/4)
S1 – S21
SO1 9 36 I-VFD-DATA
SI1 8 35 O-VFD-DATA
SCK1 7 37 O-VFD-CLK
CE 16 4 O-VFD-CE
G1 – G13
RESET 6 3 O-VFD-RESET
STREAN LED1
– STREAN LED6
X2 4
X701
4.19MHz
X1
3
KEY1 – KEY4
D611
22 O-STBY-LED
`/1
REMOTE CONTROL
g RECEIVER 7 I-SIRCS-IN
IC610
74 I-KEY0
S601, 602
97 I-POWER, DISPLAY
S660
6 I-VOL-A
ROTARY
MASTER VOLUME
ENCODER 21 I-VOL-B
XCOUT 11
X901
32.768kHz
XCIN 10
XOUT 13
X902
16MHz
XIN
15
FAN B+
O-FRONT-SP-RELAY 27
20
I-AC-PULSE
MP3 +1.5V
RESET SWITCH VREF, VDD
12
I-RESET
Q901
VOLTAGE DETECT
5
I-AC-CUT
IC902
O-POWER-RELAY 26
21 21
D301, 302
M+7V
+9V
M+9V
REGULATOR
IC021
REGULATOR
Q043
B+ SWITCH RECT
RY B+
Q041, 042 D021 – 024
+9V
+9V REGULATOR
IC011
RECT
+16V
D011 – 014
AMP B+
RECT
AMP B– D401
B–
-VFL
REGULATOR
Q902
VF1
VF2
Q902
RECT
D007, 008
RECT
UNREG
D001 – 004
+3.3V
+3.3V REGULATOR
IC006
+1.5V
D006
REGULATOR
IC303
RECT
EVER +10V
D902 – 905
D902
REGULATOR
VCC
Q903, 904
HCD-GX450
PT901
MAIN POWER
TRANSFORME
F907
F904
F905
D908
RY901
F906
PT902
SUB POWER
TRANSFORMER
AC IN
RELAY DRIVE
Q002