Block Diagram - Main Section - Sony HCD-EC69i Service Manual

6-2.

BLOCK DIAGRAM - MAIN Section -

R-ch is omitted due to same as L-ch.
SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
: iPod
: PC IN
J491
R-CH
PC IN
(EC79i/EC99i)
A
CD-L
(Page 24)
B
TUNER-L
(Page 24)
CN902
(iPod Dock)
LINE AMP
LINE-OUT-L 27
IC770
LINE-OUT-R
28 R-CH
RXD 18
TXD
19
DGND 30
45 29 31
SYSTEM CONTROLLER
IC301 (2/3)
HCD-EC69i/EC79i/EC99i
All manuals and user guides at all-guides.com
(EC69i)
POWER
AMP
IC102
(EC79i)
POWER
AMP
IC101
ELECTRICAL VOLUME,
INPUT SELECTOR,
IC602
(EC99i)
POWER
8 AUDIO-L AMP
OUT-L 19
IC103
6 CD-L VOL-L 12
POWER
AMP
4 TUNER-L SEL-L 9
IC201
2 iPod-L
26 25
STANDBY
SWITCH
Q608
33 34
O-SP-RELAY-ON/TC ON/SW ON 2
R-CH
R-CH
SUBWOOFER
+
BAND-PASS FILTER
Q701 - 703, 804
R-CH R-CH R-CH
(EC79i)
OVER LOAD OVER LOAD OVER LOAD OVER LOAD
DETECT DETECT DETECT DETECT
Q141, 142 Q201, 202 Q203 Q151, 152
D203
D140
(EC69i/EC79i)
RELAY DRIVE
Q610, 613
PROTECT
DETECT
Q611, 612
25 25
HCD-EC69i/EC79i/EC99i
J492
PHONES
RY602
R-CH
RY601
R-CH
RY701
RELAY DRIVE
Q704, 705
RELAY DRIVE
Q604
SUBWOOFER
SWITCH
Q614
SP-L
RELAY PROTECT
OVER LOAD DETECT
C
(Page 26)
O-POWER
TB602 (EC69i)
+ SPEAKER
IMPEDANCE
L
–
USE 6Ω
+
SPEAKER
R
LOW FREQ.
–
IMPEDANCE
USE 8Ω
TB601
+
L
– SPEAKER
HIGH FREQ.
IMPEDANCE
+
USE 8Ω
R
–
(EC79i/EC99i)
(EC99i)
TB603
+
SUBWOOFER
IMPEDANCE
–
USE 4Ω