Sony HCD-EP505, Руководство по обслуживанию

Страница: 17 / 52

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