Read Sony CMT-DF1 / HCD-DF1 Service Manual online
14
14
HCD-DF1
HCD-DF1
7-2. BLOCK DIAGRAM – PANEL/POWER SUPPLY Section –
REMOTE CONTROL
RECEIVER
IC5
LCD1
LIQUID
CRYSTAL
DISPLAY
LIQUID CRYSTAL
DISPLAY DRIVER
DISPLAY DRIVER
IC2
SYSTEM CONTROLLER
U1 (2/2)
RESET SWITCH
Q1
B+ SWITCH
Q5, 7
7
RESET
25
POWER_CTRL
28
DVD_VCC_CTRL
SEG1 –
SEG30
SEG30
12 – 15
17 – 46
KEY_IN0 –
KEY_IN2
KEY_IN2
13 – 15
COM1 –
COM4
COM4
30 STAND_BY
5 REMOTE
LED3
STANDBY
LED1, 2
(LCD BACK LIGHT)
2
XOUT
3
XIN
XT1
4.19MHz
SD_DATA
BU9728_DATA
9
21
SCK
BU9728_CLK
8
18
CS
BU9728_CE
10
20
C/D_STB
BU9728_C/D_STB
11
22
RESET
+4V
OPTION_IN
16
17
16 KEY_OUT
KEY1 – KEY11
(AC IN)
D4
D39
D36, 37
D17
D34
F2
RECT
D24 – 27
F3
RECT
D20 – 23
F1
DVD+5V
T1
POWER
TRANSFORMER
Abbrivation
: Hong Kong model
HK
: Singapore model
SP
: Australian model
AUS
D1
SW1
POWER
SW1
POWER
(EXCEPT AUS)
(AUS)
(E, HK, SP)
(EXCEPT E, HK, SP)
(AUS)
VOLTAGE
SELECTOR
SW2
+4V
+9V
DVD+9V
B+ SWITCH
Q21
SWITCHING
REGULATOR
U3
+9V
REGULATOR
IC1
+4V
REGULATOR
Q8
POWER OFF
MUTING
Q6
POWER OFF
MUTING
Q19
FAN MOTOR
A
POWER
CONTROL
Q9
24
TU_VCC_CTRL
VCC_CTRL
C
POWER MUTING
B
POWER
CONTROL
Q20
FAN MOTOR
DRIVE
QT2, QT4
M1
(FAN)
M
FAN MOTOR
DETECT
QT3
Q2
B+ SWITCH
Q22
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