Sony HCD-HX7 Service Manual - Page 22

Block Diagram, PANEL/POWER SUPPLY

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HCD-HX3/HX5/HX7 6-5. Block Diagram - PANEL/POWER SUPPLY Section - FL901 FLUORESCENT INDICATOR TUBE DA CP CS RESET 1G, 12G GRID DRIVE Q901, 902 Q1, Q12 VH F+ VDD D909 SYSTEM CONTROLLER IC301 (5/5) AC DET 85 73 FL SD 71 FL SCLK 72 FL CS 75 FL RESET VH B+ (HX5/HX7) BT POWER 65 +7V EVER +3.3V REMOTE CONTROL RECEIVER IC951 4 SIRCS S951 - 954, S961 - 963, S965 - 968, S970 - 976 D218, 219 RV952 VOLUME ROTARY ENCODER 83 - 81 KEY0 - KEY2 74 KEY WAKE UP FL POWER ON 70 84 VOLUME JOG CD ON 21 LED DRIVE Q953 D952 USB MEMORY (HX3) BLUETOOTH (HX5/HX7) D951 STANDBY LED DRIVE Q951 HCD-HX3/HX5/HX7 (HX3) 76 USB LED USB POWER 28 77 BT LED (HX5/HX7) STBY RELAY 80 78 STBY LED RESET 12 AC CUT 20 XIN XOUT XCIN XCOUT 15 13 10 11 X302 5MHz X301 32.768kHz VBUS +5V (HX3/HX5) BT +3.3V +3.3V REGULATOR IC903 B+ SWITCH Q302, 323, 324 SWITCHING REGULATOR IC319 XM +5.4V (HX7) +3.3V (FOR ADC ) +5V +3.3V REGULATOR IC702 (HX3/HX7) IC702 (HX5) +5.4V REGULATOR IC309 +5V REGULATOR IC308 +9V (FOR HP AMP) +9V RIPPLE FILTER Q305 +9V REGULATOR IC305 VH B+ +7V +3.3V (FOR IC311 -313) +4V +1.5V DVDD +3.3V AVDD +3.3V USB +3.3V +1.8V AMP +3.3V +12V µ-COM +3.3V EVER +3.3V B+ SWITCH IC901-2, Q904, 908 D903 POWER CONTROL SWITCH IC901-1, Q903, 905 +1.5V REGULATOR IC201 D211 D212 D210 (HX3/HX5) B+ SWITCH Q312, 313, 325, 326 D213 B+ SWITCH Q327, 329, 330 +1.8V REGULATOR IC704 (HX3/HX7) IC704 (HX5) (HX3/HX5) D203 D221 DC/DC CONVERTER Q906, 907 HX3: AEP/HX5: AEP, UK/HX7 +7V REGULATOR IC306 +4V REGULATOR IC307 D209 HX3: Canadian/ HX5: Canadian, Australian, Korean D205 - 207 T31 MAIN POWER TRANSFORMER RECT D31 +12V REGULATOR IC12 D652 +27V RECT D32 D33 ISOLATOR PH11 DC DETECT Q651, 652 POWER ON/OFF CONTROL SWITCH Q650 ISOLATOR PH602 SWITCHING Q12 SWITCHING Q11 D14 Q601 D220 D603 RESET SWITCH Q301 RESET SIGNAL GENERATOR IC302 +3.3V FOR ROTARY ENCODER B+ SWITCH Q952 T603 SUB POWER TRANSFORMER SHUNT REGULATOR IC650 ISOLATOR PH601 22 22 16 VG (H) VD 18 15 VS 12 VG (L) 9 OCP 8 VC1 2 F/B 1 VSENSE POWER CONTROL IC11 5 DRAIN 4 VCC POWER CONTROL IC601 2 FB FEED BACK SWITCH Q615 TH1 RECT D1 LINE FILTER T1 F1 (AC IN)

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HCD-HX3/HX5/HX7
22
22
HCD-HX3/HX5/HX7
6-5.
Block Diagram
– PANEL/POWER SUPPLY Section –
FL901
FLUORESCENT
INDICATOR TUBE
DA
CP
CS
1G, 12G
VH
Q1, Q12
GRID DRIVE
Q901, 902
VH B+
F+
VDD
+7V
EVER +3.3V
D909
REMOTE CONTROL
RECEIVER
IC951
SYSTEM CONTROLLER
IC301 (5/5)
80
STBY RELAY
20
AC CUT
RESET SIGNAL
GENERATOR
IC302
RESET SWITCH
Q301
B+ SWITCH
Q952
85
AC DET
12
RESET
84
VOLUME JOG
KEY0 – KEY2
83 – 81
78
STBY LED
4
SIRCS
D951
STANDBY
LED DRIVE
Q951
76
USB LED
77
BT LED
D952
USB MEMORY
BLUETOOTH
LED DRIVE
Q953
ROTARY
ENCODER
VOLUME
RV952
13
XOUT
15
XIN
X302
5MHz
11
XCOUT
10
XCIN
X301
32.768kHz
FL SD
73
FL SCLK
71
FL CS
72
FL RESET
75
74
KEY WAKE UP
S951 – 954,
S961 – 963,
S965 – 968,
S970 – 976
(AC IN)
T603
SUB POWER
TRANSFORMER
T31
MAIN POWER
TRANSFORMER
F1
LINE FILTER
T1
RECT
D1
21
CD ON
70
FL POWER ON
D603
D14
4
POWER
CONTROL
IC601
VCC
5
DRAIN
2
FB
POWER CONTROL
IC11
1
VSENSE
2
F/B
9
OCP
16
VG (H)
ISOLATOR
PH601
FEED BACK
SWITCH
Q615
ISOLATOR
PH602
SHUNT
REGULATOR
IC650
D205 – 207
D209
18
VD
SWITCHING
Q12
12
VG (L)
SWITCHING
Q11
15
VS
8
VC1
Q601
RECT
D32
RECT
D31
D652
D33
+27V
+4V
DVDD
+3.3V
+3.3V
(FOR IC311 –313)
+1.5V
D203
D210
D211
AVDD
+3.3V
D212
D213
AMP
+3.3V
+1.8V
+12V
D220
D221
+3.3V
EVER
+3.3V
µ
-COM
+3.3V
+7V
+9V
VH B+
+7V
REGULATOR
IC306
+9V
REGULATOR
IC305
+5.4V
REGULATOR
IC309
+4V
REGULATOR
IC307
65
BT POWER
DC/DC
CONVERTER
Q906, 907
B+ SWITCH
IC901-2, Q904, 908
+5V
+5V
REGULATOR
IC308
+12V
REGULATOR
IC12
+9V
(FOR HP AMP)
+3.3V
(FOR ADC )
XM
+5.4V
SWITCHING
REGULATOR
IC319
VBUS
+5V
BT
+3.3V
RIPPLE
FILTER
Q305
+3.3V REGULATOR
IC702 (HX3/HX7)
IC702 (HX5)
+1.8V REGULATOR
IC704 (HX3/HX7)
IC704 (HX5)
+1.5V
REGULATOR
IC201
DC DETECT
Q651, 652
POWER ON/OFF
CONTROL SWITCH
Q650
B+ SWITCH
Q312, 313,
325, 326
28
USB POWER
USB
+3.3V
B+ SWITCH
Q327, 329, 330
RESET
D218, 219
(HX3)
(HX5/HX7)
(HX3/HX5)
(HX3/HX5)
(HX7)
(HX3/HX5)
(HX5/HX7)
(HX3)
(HX5/HX7)
FOR
ROTARY ENCODER
TH1
ISOLATOR
PH11
POWER CONTROL
SWITCH
IC901-1, Q903, 905
D903
B+ SWITCH
Q302, 323, 324
+3.3V
REGULATOR
IC903
HX3: AEP/HX5:
AEP, UK/HX7
HX3: Canadian/
HX5: Canadian,
Australian, Korean