Read Sony ZS-Y3 Service Manual online
17
17
ZS-Y3
ZS-Y3
5-3. BLOCK DIAGRAM – MAIN SECTION –
SYSTEM CONTROLLER
IC802 (2/2)
POWER
AMP
IC302
: CD PLAY
R-CH
R-CH
: FM
SP101
(L-CH)
(L-CH)
SP201
(R-CH)
J321
i
6
14
13
16
INPUT SELECT,
ELECTRICAL VOLUME,
SURROUND/TONE CONTROL
IC301
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
SI
SC
R-CH
MEGA BASS
CONTROL
Q101
D301
MUTING
Q121
TU L-OUT
C
CD DOOR
CD L-OUT
A
TU-DATA
TU-CLOCK
TU-CLOCK
TU-CE
TU-COUNT
90
92
93
91
D
TU-MUTE
89
COM0 – COM3
LIQUID CRYSTAL DISPLAY
LCD401
55 – 58
S0 – S16
59 – 75
SDA
SCL
5 6
SDA
SCL
EEPROM
IC803
47 46
R DATA
R DATA, R CLOCK,
R CE, R COUNT,
R MUTING
R CE, R COUNT,
R MUTING
R CLOCK
R CE
R COUNT
R MUTING
MUTING
Q802
V-
C
L
K
43
V-
D
A
TA
44
A-MUTE
84
M-BASS
81
34 KEY3
S417
33 KEY2
S401, 402,
S404 – 408
32 KEY1
S409 – 416
CD-L
2 L-IN
8 RA-L
LCH
3
SELL
X802
8MHz
X801
75kHz
X1A
X0A
48
49
X1
X0
98
99
D405
(LCD BACK LIGHT)
LED DRIVE
Q401
80 BACK-LIGHT
SWITCHING
Q806
B
19 RMC-IN
REMOTE CONTROL
RECEIVER
IC401
83
CD-ON
86
TU-ON
82
P-CON
PL-CONT
96
RST
RMC +5V
VT B+
+3.3V
REGULATOR
IC801
RESET SIGNAL
GENERATOR
IC804
D804
12
AC-CHK
79
+6.2V
REGULATOR
Q954
B+ SWITCH
Q951 – 953
Q951 – 953
AC CHECK
Q801
B+ SWITCH
Q803, 804
RADIO +6V
CD +3.3V
µ-COM B+
+9V
+6V
+3.3V
REGULATOR
Q956
RECT
D901 – 904
T901
POWER
TRANSFORMER
µ-COM +3.3V
DRY BATTERY
SIZE "C"
(IEC DESIGNATION R14)
6PCS. 9V
D955
D401
3.3V-MONITOR 16
V-CHECK 39
J901
AC IN
37
BTT-CHK-H
CD ON
SWITCH
Q957, 958
TRIGGER
PLUNGER DRIVE
Q808, 809
PL801
TRIGGER
PLUNGER
OPR/BATT
(Page 15)
(Page 16)
(Page 16)
(Page 15)
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