Block Diagram - Display/Power Section - Sony HCD-GNX780 Service Manual

7-5. BLOCK DIAGRAM – DISPLAY/ POWER SECTION –
P1 – 36
FL901
G14-16 BUFFER
FLUORESCENT Q901,902,914
INDICATOR TUBE
G1-13,G17-24
VF1
VF2
D905
-VG
(-32V)
16
IC904
BPF, RECT
15
2 IN2
14
13
SPEANA
MAIN
F X
1 IN1
SECTION
17
(Page 29)
ROTARY
OPERATION
ENCODER
DIAL
S1161
ROTARY
MASTER
ENCODER
VOLUME
S970
FAN CTL
AMP
X I
SECTION
(Page 30)
HCD-GNX780/GNX880
KEY2
83 XIN
S901 – 906,
|
1166 - 1170
X901
KEY0
4MHz
82 XOUT
Q906
SELECTOR 80
IC902
DISPLAY CONTROL,
KEY CONTROL
G14-16
LED DRIVE
Q908-913,915,
918,919,921
48 VKK
68 BPF4
69
BPF3
70 BPF2
71 BPF1
67 ALL BAND
72 OPERATION DIAL
74 VOLUME
I2C DATA 60 30 IIC-DATA
I2C CLK 61 29 IIC-CLK
RESET 77 71 GC-RESET
D927
(R)
LED DRIVE
72 STBY-LED/FAN CTL
Q903,917
D928
(G)
S925
74 POWER-KEY
73 DISPLAY-KEY
S900
DISPLAY
IC903
4 SIRCS
REMOTE CONTROL
RECEIVER
15 X-IN
X402
16MHz
13 X-OUT
10 XC-IN
X401
32.768kHz
11 XC-OUT
LED+9V
Q905
Q907
Q904
D908, 910, 911, 913, 914,
917, 919, 921, 923, 925,
1020
D909, 915, 916, 920, 922,
924, 926, 929, 930,
1017, 1145, 1153
IIC-DATA
IIC-CLK
CDG
B
SECTION
RESET
(Page 27)
IC401 (5/5)
SYSTEM CONTROL
IC562
+3.3V +3.3V
REGULATOR
CD-POWER 32
OVER VOLTAGE 63
STBY-RY 69
D3.3V
IC402
RESET
RESET 12 SWITCH 1 LEVEL 2
Q501
DETECT
AC-CUT 20
31 31
D660, 661
AMP VL(AC)
X J
SECTION T1200
(Page 30) POWER
TRANSFORMER
F1261
VL
+VL
RECT
VL
D658
–VL
F1271 GND
F1241
VH
+VH
RECT
VH
D656
–VH
F1251
– 33V R1292
VP
– VG
REGULATOR
(-32V)
Q1264 D1292
RECT
VF
VF1
TO FLUORESCENT
INDICATOR TUBE
VF
FL901
VF2
D561 – 563
MT +7V
LED+9V IC561
M +9V
+9V
REGULATOR
BIAS+3.3V
F1281
AC3
IC560
A +9V
RECT
TC +9V
AC3
+9V
D560
REGULATOR
B+ SWITCH
Q560, 561
AC4
NC
AC4
NC
RY1200
POWER ON/OFF
RELAY DRIVE
Q1200
B+ SWITCH
Q504, 505
D505
M+9V
POWER
EVER +4V
SWITCHING
HCD-GNX780/GNX880
JW1234
JW1204
AC IN