Block Diagram - Main Section - Sony HCD-EP505 Service Manual

6-3. BLOCK DIAGRAM – MAIN Section –
RL-CH
(Page 16) F
RR-CH
R-CH
TL-CH
TR-CH
R-CH
TU-L
B
(Page 15)
TU-R
R-CH
CD BLOCK
CD-L-IN
CD-R-IN R-CH
CD DO
CD CLK
CD \RESET
DA IN
(Page 15) E
CLOCK
DA OUT
PLL CE
STEREO
STATION
L1 INPUT SELECT SWITCH,
12
ELECTRICAL VOLUME
U501
L2
(AEP, UK, CH) (EXCEPT AEP, UK, CH)
11
L4
9
LTOUT
L3
3
10
SWITCH
SELECT SWITCH
14 15 16 8 7 6 5 4
SOUND
CONTROL
CIRCUIT
SYSTEM CONTROLLER
IC301 (2/3)
14 CDDATA
88 CDCLK
INPINENA 17
15 CDRESET
MUTE 21
X2 80
X1 79
19 SOUNDENA
73 DATAOUT
74 CLK
DATAIN CD DOOR SW 91
72
20 PLLENA
76 STEREO
6 STATION
EEPROMDATA 75
EEPROMCLK 77
LVRIN LVROUT
2 1
MEGA BASS
R-CH
CONTROL SWITCH RVROUT 30
Q504
R-CH
D505
X301
4.194304MHz
SW300
Z PUSH
OPEN/CLOSE
EEPROM
IC302
5 SDA
6 SCL
17 17
POWER AMP
U502
MUTING MUTING
(AEP, UK, CH) (EXCEPT AEP, UK, CH)
Q501 Q505
R-CH R-CH
D506 D507
HEADPHONE
AMP
U503
(AEP, UK, CH) (EXCEPT AEP, UK, CH)
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
: CD PLAY
: TAPE PLAY
: RECORD
HCD-EP505
Ver 1.1
CN503
SPEAKER
IMPEDANCE
USE 8Ω
+
L
–
–
R
+
R-CH
+9V
H501
R-CH
PHONES