HCD-DH50R/DH70SWR
HCD-DH50R/DH70SWR
29
29
5-4. BLOCK DIAGRAM - PANEL/POWER SUPPLY Section -
I-TOUCH_SENSOR_INT
O-TOUCH_SENSOR_RESET
FAN +11V
POWER ON
MUTING
Q257
OSC
Q623
T621
DC/DC
CONVERTER
RECT
D621, D622
HP +11V
FL -22V
AC 3.2V
LED DRIVE
Q581, Q582
A +5V
AMP +12V
HDMI +5V
AMP +27V
SW +9V
DMB A+5V
EVER +3.3V
D757
USB_SW
SM +1.8V
ADC +3.3V
A +9V
RESET SWITCH
Q550
FAN MONITOR
Q671 – Q673
M002
(FAN)
B+ SWITCH
Q2005
GRID DRIVE
Q621
FLUORESCENT
INDICATOR
TUBE DRIVER
IC621
OVER VOLTAGE
DETECT
Q430
SYSTEM PROTECT
MONITOR
Q563
SYSTEM PROTECT
MONITOR
Q564
FAN MOTOR
DRIVE
Q670, Q674, Q675
DMB +3.3V
SW +5V
CPU +3.3V
CPU +1.8V
USB_OCD
XRST
USB_OCD,
USB_SW
RF +3.3V
USB +5V
SW +3.3V
D495
CPU A+3.3V
SYSTEM CONTROLLER
IC401 (3/3)
M
M
ND621
FLUORESCENT
INDICATOR
TUBE
LED DRIVE
Q622
D624
(STANDBY)
BZ621
S621, S623
S624 – S627
KEY
BOARD
X401
32.768kHz
X402
25MHz
(DH50R: RU, SP, TW, KR, TH/DH70SWR: RU)
(AC IN)
T603
SUB POWER
TRANSFORMER
T31
MAIN POWER
TRANSFORMER
F1
LINE
FILTER
T1
RECT
D1
D603
D14
ISOLATOR
PH601
ISOLATOR
PH602
SWITCHING
Q12
SWITCHING
Q11
Q601
RECT
D904
D33
TH1
ISOLATOR
PH11
+
D902
D906
D907
PROTECT
DETECT
Q904
D911
D914
D923
POWER ON/OFF
CONTROL
Q901
RECT
D903
POWER ON/OFF
CONTROL
Q905
Q907
Q906
D913
AC DETECT
Q902, 903
: Singapore model
Abbreviation
SP
: Thai model
TH
: Taiwan model
TW
: Korean model
KR
: Russian model
RU