Sony HCD-GTX88, Service Manual, Page: 36 / 104

36 36
HCD-GTX88
HCD-GTX88
6-6. BLOCK DIAGRAM — DISPLAY/POWER SECTION —
USB +5V
ND900
VACUUM
FLUORESCENT
DISPLAY
9, 10, 12 – 22,
24 – 41, 43 – 47
1 – 6, 87-100
P1 – 36
G2 – 21
64 – 66
7, 8, 86
BF4
1
SPECTRUM
ANALYZER
IC902
67
68
16
2
15 69
71
48
80
ALL BAND
BF3
BF1
IN2
IN1
VKK
LED SELECTOR
G1,22,23
G1,22,23
G2-21
13
17
73 VOLUME
MASTER
VOLUME
SPEANA
P1 – 36
VF1
VF2
D900
–VG
(–32V)
FUN CONTROL
X900
4MHz
83 XI
82 XO
52– 59,
75,76,78,79
LED DRIVE
Q906–911, 913–916
920,921
D906, 908, 910, 913, 917,
921, 929, 923, 925, 927
D905, 907, 909, 912, 914,
916, 922, 924, 926.955
LED+9V
Q903
Q902
Q901
Q900
D904
(R)
D930
(G)
KEY2
|
KEY0
S901 – 914,
916 –933
60 I2C DATA
61 I2C CLK
77 RESET
30 IIC-DATA
29 IIC-CLK
IIC-DATA
IIC-CLK
37 GC-RESET
74 POWER-KEY
73 DISPLAY-KEY
S934
S900
DISPLAY
33 STBY-LED/FAN CONTROL
4 SIRCS
RESET
X402
5MHz
15 X-IN
13 X-OUT
X401
32.768kHz
10 XC-IN
11 XC-OUT
SYSTEM CONTROL
IC401 (6/6)
50 STBY-RELAY
12 RESET
20 AC-CUT
D671
D402
D501,504
POWER
SWITCHING
LED DRIVE
Q904,905
RECT
D658
RECT
D656
+VL
VL(AC)
F1261
VL
VL
VH
VH
VP
VF
VF
GND F1271
F1241
F1251
R1292
–VL
+VH
–VH
– 33V
REGULATOR
Q1264
POWER ON/OFF
RELAY DRIVE
Q1200
– VG
(-32V)
D1292
RECT
VF1
VF2
ND900
VACUUM
FRUORESCENT
DISPLAY
RY1200
AC IN
T1200
POWER
TRANSFORMER
RESET
SWITCH
Q501
REMOTE CONTROL
SIGNAL RECEIVER
IC901
EVER +4V
D+3.3V
DISPLAY CONTROL,
KEY CONTROL
IC900
BUFFER
Q917, 918, 919
70 BF2 14
72 OPERATION DIAL ROTARY
ENCODER
ROTARY
ENCODER
OPERATION
DIAL
NO402
(FOR CHECK)
CN402
(3/3)
(FOR CHECK)
40 USB-POWER
63 OVER VOLTAGE DET
32 CD POWER
USB POWER
CONTROL
SWITCH
Q590,603
RECT
D540
M +9V
VM +7V
LED +9V
A +9V
ST +9V
OVER VOLTAGE
DETECT SWITCH
Q550
AC3
AC3
F1281
AUDIO +9V
BIAS +9V
UNREG
S1200
S1200
230 – 240V
|
220V
|
120V
VOLTAGE
SELECTOR
AUS,AR MODEL
E2,E51 MODEL
S936
S935
X
MAIN
SECTION
G
X
AMP/SUBWOOFER
SECTION
K
X
AMP/SUBWOOFER
SECTION
J
LEVEL
DETECT
IC402
USB+5V REG
IC565
+9V REG
IC560
+9V REG
IC561
DVDD+3.3V
REG
IC562
D592
D561,
562
D590,594
E2,E51
MODEL
D593
DVSS +3.3V
D +3.3V
AVDD +3.3V
DVDD +3.3V
USB POWER
CONTROL
SWITCH
Q604–606
CD POWER
CONTROL
SWITCH
Q560,561
USB+9V REG
IC570
D+4V REG
IC569
• Abbreviatio
n
AR : Argentina model
AUS : Australian model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian model
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(Page 35)
(Page 35)