2. block diagram, Mdr-if4000 – Sony MDR-IF4000 User Manual
Page 11
MDR-IF4000
11
11
MDR-IF4000
3-2. BLOCK DIAGRAM
+2.5V
IC102
RESET
4
IC101
IR RECEIVER/DSP
IC201
D/A CONVERTER
IC001
FRONTEND
D401-408
IR
RECEIVER
Q302
MUTE
RV201
IC302
HEADPHONE
AMP
IC301
HEADPHONE
AMP
Q301
MUTE
Q101
MUTE
DRIVE
SP001
SPEAKER
(R CH)
SP002
SPEAKER
(L CH)
IC501
+1.5V
REGULATOR
IC503
+2.8V DC/DC
CONVERTOR
D601
D501
D502
POWER
S602
S701
S701
AUTO
ON/OFF
S601
+1.5V
+2.5V
IC502
+2.5V
REGULATOR
Q601,602
+B SWITCH
IC601
LEVEL DETECT
BATTERY
DETECT
CHARGE
TERMINAL
RECHARGEABLE
BATTERY
(BP-HP550)
1.2V 550mAhX2
w
VOL
・SIGNAL PATH
:
RF
: ANALOG
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