Block Diagram - Main Section - Sony ZS-Y3 Service Manual

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