Sony HCD-EC79i - Block Diagram: Main Section

HCD-EC69i/EC79i/EC99i
HCD-EC69i/EC79i/EC99i
2525
6-2. BLOCK DIAGRAM - MAIN Section -
R-CH
PC IN
J491
4 TUNER-L
26
SDATA
25
SCLK
8
9
AUDIO-L
SEL-L
6 CD-L
O-AUDIO-DATA
33
O-AUDIO-CLK
I-iPod-DET
I-iPod-TXD
O-iPod-RXD
34
O-SP-RELAY-ON/TC ON/SW ON
12VOL-L
ELECTRICAL VOLUME,
INPUT SELECTOR,
IC602
SYSTEM CONTROLLER
IC301 (2/3)
: TUNER (FM/AM)
: CD PLAY
: iPod
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: PC IN
A
CD-L
B
TUNER-L
C
iPod-L
CN902
(iPod Dock)
27
28
LINE AMP
IC770
R-CH
18
19
30
LINE-OUT-L
LINE-OUT-R
RXD
TXD
DGND
2
45
29 31
19OUT-L
OVER LOAD
DETECT
Q141, 142
D140
OVER LOAD
DETECT
Q201, 202
POWER
AMP
IC103
POWER
AMP
IC201
D203
OVER LOAD
DETECT
Q151, 152
SUBWOOFER
BAND-PASS FILTER
Q701 - 703, 804
OVER LOAD
DETECT
Q203
STANDBY
SWITCH
Q608
J492
RY602
R-CH
PHONES
SPEAKER
IMPEDANCE
USE 6Ω
SPEAKER
LOW FREQ.
IMPEDANCE
USE 8Ω
SPEAKER
HIGH FREQ.
IMPEDANCE
USE 8Ω
+
–
–
+
R
L
TB602
R-CH
R-CH R-CH R-CH
R-CH
+
–
–
+
R
L
TB601
R-CH
RY601
(EC69i)
(EC79i/EC99i)
(EC79i/EC99i)
(EC99i)
SUBWOOFER
IMPEDANCE
USE 4Ω
+
–
TB603
RY701
(EC99i)
RELAY DRIVE
Q604
RELAY DRIVE
Q610, 613
PROTECT
DETECT
Q611, 612
RELAY DRIVE
Q704, 705
(EC69i)
(EC79i)
(EC79i)
POWER
AMP
IC102
POWER
AMP
IC101
(EC69i/EC79i)
RELAY PROTECT
SP-L
OVER LOAD DETECT
O-POWER
2
SUBWOOFER
SWITCH
Q614
+
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