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HCD-EH25/EH26
HCD-EH25/EH26
14
14
7-3. BLOCK DIAGRAM - MAIN/POWER SUPPLY Section -
R-CH
INPUT SELECTOR,
ELECTRICAL VOLUME
IC401
28
REC1O
18
OUT1
13
SD
23 C1
21 B1
2 PB1P
19 A1
R-CH
CD-L
A
TUNER-L
6,*1$/3$7+
: CD PLAY
: TAPE PLAY
: REC
: REC
5FKLVRPLWWHGGXHWRVDPHDV/FK
J105
AUDIO IN
J102
PHONES
SPEAKER
+
–
–
–
+
R
L
J101
BIAS OSC
L501
OSC
Q507
TPR501
(REC/PB)
TAPE
MECHANISM
DECK
L-CH
SW501-1
SW501
(REC/PB)
PB
r
REC
R-CH
R-CH
POWER
AMP
IC301
33
FUNC_SDA
RMC
9
SYSTEM CONTROLLER
IC701 (3/3)
+
(AC IN)
F001
POWER
TRANSFORMER
PT005
6<69
D702
D116 – 118
D372
AMP B+
RECT
D107 – 110
B+ SWITCH
Q351, 352
AC DETECT
Q371, 372
AC DETECT
Q121, 122
92/7$*(
DETECT
Q705, 706
RECT
D111, 113
VSTBY
+9V
5(*8/$725
Q101 – 103
VM +9V
USB
'9''9
VM +7V
TUNER +5V
TUNER +3V
46
POWER_ON
42
HOLD
36
P_MONI
54
REST
REMOTE CONTROL
RECEIVER
IC703
LED DRIVE
Q707
LED701
/&'%$&./,*+7
LED_STBY
22
LED
1
LED702
X701
32768Hz
14
13
X3
X2
92
93
X702
0+]
X1
X0
LCD702
LIQUID
CRYSTAL
DISPLAY
48 RE_VOL
2 CD OPEN/CLOSE
ROTARY
ENCODER
SW700
VOLUME
STANDBY
SW701 – 711
(FRONT PANEL KEYS)
SW750
(CD LID OPEN/CLOSE DETECT)
KEY1 – KEY3
37, 38, 41
COM0 – COM3
59 – 62
6(*±6(*
63, 64, 67 – 89, 94 – 100
RESET
SWITCH
Q704
B
SW501-2
40
TP_ST
ATE
DC
DETECT
Q123
F002
LED DRIVE
Q711, 712
LINE FILTER
LF901
92/7$*(
SELECTOR
S002
5(*8/$725
Q701 – 703
5(*8/$725
Q802
5(*8/$725
Q801
9
5(*8/$725
IC707
9
5(*8/$725
IC706
D703
9
5(*8/$725
IC201
9
5(*8/$725
IC102
92/7$*(
DETECTOR
IC709
Q710
D704, 705
B+ SWITCH
Q713, 714
86%$9''9
86%9
$9''9
'9''9
9''9
24
86%B5(*B21
23
CD_ON
RECT
D901, 902
+5V
5(*8/$725
IC901
VBUS POWER
ON/OFF SWITCH
IC103
VBUS B+
AUDIO SELECT
SWITCH
IC451
USB-L
C
: USB
: AUDIO IN
: FM
30
AUDIO_SW
34
AMP_ON
21
USB_EN
20
86%B)/*
+
9
5(*8/$725
Q708
9
5(*8/$725
Q709
(;&(37(+&RORPELDQ
&KLOHDQDQG3HUXYLDQPRGHOV
(+&RORPELDQ&KLOHDQ
DQG3HUXYLDQPRGHOV
(Page 12)
(Page 13)
(Page 13)
Ver. 1.5
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