Schematic Diagram - Main Section (1/3) - Sony MEX-BT2500 Service Manual

5-2. SCHEMATIC DIAGRAM – MAIN Section (1/3) –
(US,CND,E)
FRONT LCH+
FRONT LCH-
REAR LCH+
REAR LCH-
REAR RCH+
REAR RCH-
FRONT RCH+
FRONT RCH-
ANT REM MAX0.1A
ACC
GND
BATT
(AEP,UK)
RL+ RL-
FL+ FL-
FR+ FR-
RR+ RR-
F301
FL+ FL-
10A
32V
RL+ RL-
RR+ RR-
FR+ FR-
SYSRST
AMT REM
CDMON
ACC
BUSON
+8.3V
GND BATT
ACC GND
AMT REM
BATT
+3.3V
(Page 30)
UNISI
Z-MUTE
• Semiconductor Location
– MAIN Section –
Ref. No. Location Ref. No. Location Ref. No. Location
D2 E-2 D306 C-5 D451
D103 H-3 D307 C-6 D452
D104 H-3 D308 C-6 D491
D108 H-4 D309 B-6 D493
D301 C-8 D310 B-6 D502
D303 C-8 D311 C-7 D503
D305 C-5 D312 C-6 D580
MEX-BT2500
• See page 34 for IC Block Diagrams.
(1/3)
CN300
16P
D705 MA8180M
C706 0.001
R707 R708
47k 4.7k
R705 4.7k D702 MA8180M R706 47k
R709 1k D703 MA8068M C702 0.47
C705 0.01 C703 0.47
C701
3300
Q702
16V
D707 2SC3052EF
1N5404-C311-3
TEL ATTENATION
C704
0.22 DETECT
L700
SGND
CDON
Q580-582
DGND
VOLTAGE DETECT
Q582 Q581
2SC3052EF RT1N441C Q580
RT1N141C
R585
220k
R584
47k
B
A
R455
1k
CN350
28P
D451
LINK_OFF BUS_ON
BAT54CLT1G
UNICLK B/U_CHECK
R679
100
UNISI OPEN_REQ
UNISO EJECT_OK
FB458 0 C458 0.01 C456
D_GND A_3.3V
FB457 0 C457 22 16V C455
D_3.3V A_GND
FB456 0 JC15 0
Z-MUTE AU_RCH
NC AU_GND
NC AU_LCH
FB455 0 C460 10 16V
BU_GND A-ATT
FB454 0 C461 0.01
BU_3.3V CDM-ON
R454
SYS_RST CD-ON
100k
DR_GND DR_GND
DR_6V DR_6V
C452 C451
0.01 100
10V
SERVO BOARD SENSOR BOARD
CD MECHANISM
DECK BLOCK
(MG-101TA-188)
0
Ref. No. Location Ref. No. Location
E-8 D581 D-9 D801 F-9
F-7 D602 H-2
D-4 D702 C-7 IC50 F-2
D-5 D703 C-8 IC300 B-6
H-5 D705 B-8 IC401 C-3
H-5 D707 C-9 IC501 G-5
D-9 D800 E-10 IC602 F-7
STB
BEEP
TEST
ACC
D580 R582
MA8075M 1k
D581 R583
MA8180M 1k
DIAG
R554 1k
RST
D452
BAT54ALT1G
R491
47
JC1
0
ATT
RST
R453 100k
100 10V FB453 0 L451 2.2µH
0.01 FB452 0
R452 1k
FB451 0 C454 0.0022
R451 1k C453 0.0022
JC2 0
C411 1 50V
C410 1 50V
Ref. No. Location Ref. No. Location Ref. No. Location
IC901 G-2 Q430 A-4 Q582 D-9
Q440 B-3 Q702 C-8
Q1 D-2 Q491 D-4 Q802 D-9
Q3 E-2 Q492 D-4 Q803 D-9
Q50 G-2 Q500 H-5 Q804 F-9
Q410 B-3 Q580 D-9 Q805 F-9
Q420 B-3 Q581 D-9 Q806 D-9
29 29
C318 47p
R301 150
R302 C319
47k 0.22
C303
C325 22 C330
0.22 16V 0.22
C317
2.2
C301 50V C304
0.22 0.22
JC29 JC30 JC31
0 0 0
POWER AMP,
REGULATOR
IC300
TDA8588BJ
D312 10EDB40
D311 10EDB40
D310 10EDB40
D309 10EDB40
D308 10EDB40
D307 10EDB40
D306 10EDB40
D305 10EDB40
D303 10EDB40
Q491
RT1P141C
D491
1SS355
D493
MC2838
C491
47
16V
Q492
RT1N141C
Q491,492
MUTNG CONTROL
RESET SIGNAL GENERATOR
IC602
PST3428UL
C521
R531 1000 VOUT
100k 6.3V
R528
100k
VDD
C520
1000
6.3V
Ref. No. Location
Q807 D-10
Q808 D-10
MEX-BT2500
L301 2.2µH
C306 C308
10 10 JC12 JC13
50V 50V 0 0
C305 C307
0.1 0.1
C309
0.22
C312
0.22
C316 C314
C315 C313 C320
10 10 IN-FL
0.1 0.1 0.01
50V 50V
IN-FR
+8.3
IN-RR
IN-RL
SGND
+B
D301
10EDB40
JC9
0
(Page 31)
VSS
NC
B+
CD-LCH
CD-RCH
C