Sony MEX-BT2800 / MEX-BT2807E / MEX-BT2850 Service Manual ▷ View online
MEX-BT2800/BT2807E/BT2850
MEX-BT2800/BT2807E/BT2850
21
21
SECTION 4
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• C : Panel designation.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Power voltages is dc 14.4V and fed with regulated dc
• Power voltages is dc 14.4V and fed with regulated dc
power supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TUNER
( ) : CD PLAY
( ) : CD PLAY
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
AUDIO
f :
TUNER
J
: CD PLAY
p : BLUETOOTH OUT
l : BLUETOOTH IN
N :
l : BLUETOOTH IN
N :
MIC
E :
AUX
IN
j
: BUS AUDIO IN
• Abbreviation
CND : Canadian model
EA
CND : Canadian model
EA
: Saudi Arabia model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
CND : Canadian model
EA
CND : Canadian model
EA
: Saudi Arabia model
• Circuit Boards Location
• Waveforms
– MAIN Board –
MAIN board
SENSOR board
SERVO board
KEY board
– Front panel –
– Main unit –
BT board
ANTENNA board
2
IC501 qd (OSCOUT)
1 V/DIV, 50 ns/DIV
91 ns
3.6 Vp-p
1
IC501 qa (XOUT)
1 V/DIV, 10
Ps/DIV
30.4
Ps
2.7 Vp-p
MEX-BT2800/BT2807E/BT2850
MEX-BT2800/BT2807E/BT2850
22
22
4-1. PRINTED WIRING BOARDS - MAIN Section -
•
: Uses unleaded solder.
• See page 21 for Circuit Boards Location.
Q478
Q479
Q651
R509
R513
R514
C504
C508
C507
R510
R511
R512
R528
C413
C501
R503
R582
D580
R651
R653
R654
D651
R632
R634
R633
Q631
R636
Q580
R521
R522
R584
D581
R583
R532
R531
C343
R674
R671
R672
R534
R756
C755
C757
R752
R479
C770
C756
C509
R504
R505
R673
C510
C512
C513
C514
R461
R451
C763
D719
R564
C617
C764
C765
C751
C602
R301
R302
C306
C308
C309
C310
FB604
R652
C771
JC754
JC755
R533
D512
IC602
D510
R431
Q431
R432
R441
R442
C312
R561
R565
R567
R570
C519
R502
R462
R452
R401
R601
D502
R519
C774
C775
R543
R578
R539
R675
R676
R677
R679
D617
R661
R662
R663
R664
C776
C435
C455
C465
C445
C442
C432
C452
C462
C769
D704
C522
C523
R153
R154
R155
R481
R482
R472
D153
C154
C155
R151
R152
L151
IC580
R580
R587
R588
C580
R591
Q586
R581
Q587
D584
R590
D582
D583
C582
C618
C454
C464
C331
C330
R331
R330
R333
R332
R554
R555
C681
C682
R553
C750
C434
C444
Q471
R471
Q481
Q441
Q451
Q461
D479
R542
C157
C502
JC580
JC301
JC302
FB308
FB309
JC581
D511
JC501
R547
C631
C632
JC303
Q806
C827
C800
FB800
C804
C802
R801
JC801
R802
R835
R833
R834
D800
R832
D801
JC800
R811
R810
Q807
Q808
R836
R837
R838
R839
R840
R841
R842 R843
R844
R845
R846
R847
R849
R850
R851
R852
R848
R853
D475
R520
R551
R538
R506
R573
R507
R574
R575
R537
R549
R546
R800
IC401
C810
C820
C404
C405
JC802
JC502
C705
C706
C707
C708
C719
D703
C709
C551
C408
C409
FB401
FB402
R508
R516
R517
JC151
R529
R530
R635
R631
C1
C12
IC1
C5
R3
VDR1
R1
C6
C8
C9
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
C27
R11
R13
R14
R10
R6
C13
R2
R12
C2
C3
R4
R5
FB1
FB2
JC521
C520
C521
R550
JC511
JC513
Q511
IC501
FB304
FB311
FB561
FB562
FB563
JC803
R501
FB312
R500
C601
D760
D601
D754
D755
D756
D762
L601
CNP301
CN601
X501
D753
CN701
JW119
JW89
JW22
JW3
JW93
JW18
JW1
JW2
JW9
JW45
C441
C431
C451
C461
C401
C753
C758
C479
C302
C301
C305
IC750
C481
C471
C151
C152
JW139
C623
C622
JW20
JW41
TH580
C683
JW132
JW131
JW19
D761
D759
C402
C403
JW35
JW38
JW46
JW61
JW142
C153
CN580
JW21
JW5
JW10
JW88
JW97
JW95
S702
JW98
JW14
JW15
JW16
C581
JW34
JW30
JW11
JW12
JW13
JW68
JW133
JW74
JW140
JW71
JW40
JW108
JW79
JW149
JW151
JW156
JW155
JW67
JW83
JW150
JW86
JW141
JW59
JW115
JW27
JW99
JW28
JW106
JW134
JW49
JW47
JW152
JW50
JW44
JW65
JW36
JW57
JW153
JW154
JW145
JW48
JW42
JW26
JW25
JW103
JW56
JW54
JW73
JW24
JW66
JW29
JW85
JW94
JW51
JW124
JW135
JW96
JW92
JW33
JW37
JW120
JW90
JW77
JW82
JW109
JW39
JW111
JW31
JW136
JW4
JW17
JW7
JW6
JW8
JW32
JW100
JW101
JW121
JW122
JW157
JW158
JW159
JW160
JW161
JW129
JW130
JW91
JW80
JW76
JW69
JW78
C503
JW116
JW117
C801
C828
JW58
JW72
JW53
JW52
S502
JW127
JW112
CN805
CN804
J561
C752
JW146
JW62
JW63
JW167
JW75
JW55
JW174
JW175
JW176
JW84
JW118
C407
C406
C215
C216
C412
C761
JW113
JW178
JW23
X502
J1
JW102
JW137
JW138
C28
JW147
JW148
JW126
J330
JW143
L7
L8
L4
L6
L2
L3
X1
L1
D602
JW200
CN1
K
K
2
1
1
3
4
4
A
K
K
A
A
A
K
L
R
FRONT
AUDIO OUT
L
R
REAR / SUB
AUDIO OUT
AUDIO OUT
L
R
BUS
AUDIO IN
1
2
3
7
8
4
5
6
(FRONT VIEW)
FU601
SERVO
BOARD
BOARD
SENSOR
BOARD
CD MECHANISM
DECK
MG-101L-188//Q
BT BOARD
MIC201
A
KEY BOARD
CN901
9 k
10 k
(ANTENNA IN)
RESET
A
A
K
MAIN BOARD
1-877-021-
31
BUS
CONTROL IN
REMOTE
IN
(CHASSIS)
FREQUENCY
SELECT
(CHASSIS)
(CHASSIS)
1
9
WHT/BLK
WHT
GRN/BLK
GRN
VIO/BLK
VIO
GRY/BLK
GRY
WHT
GRN/BLK
GRN
VIO/BLK
VIO
GRY/BLK
GRY
BLU
RED
YEL
BLK
YEL
BLK
FRONT LCH (–)
FRONT LCH (+)
REAR LCH (–)
REAR LCH (+)
REAR RCH (–)
REAR RCH (+)
FRONT RCH (–)
FRONT RCH (+)
FRONT LCH (+)
REAR LCH (–)
REAR LCH (+)
REAR RCH (–)
REAR RCH (+)
FRONT RCH (–)
FRONT RCH (+)
ANT REM MAX 0.1A
ACC
BATT
GND
BATT
GND
2
10
3
11
4
12
5
13
6
14
7
15
8
16
1
1
9
WHT/BLK
GRN/BLK
VIO/BLK
GRY/BLK
GRN/BLK
VIO/BLK
GRY/BLK
WHT
GRN
VIO
GRY
BLU
RED
BLK
2
2
10
3
3
11
4
4
12
5
5
13
6
6
14
7
7
15
8
8
1
2
3
4
5
6
7
8
16
RL+
RL–
GRN/BLK
WHT/BLK
GRY/BLK
VIO/BLK
WHT/BLK
GRY/BLK
VIO/BLK
GRN
WHT
GRY
VIO
FL+
FL–
FR+
FR–
RR+
RR–
ACC GND
BLK
YEL
RED
BLU
ANT
REM
NC
NC
BATT
NC
NC
TO
CN601
(BT2800: AEP, UK/BT2807E)
(BT2800: US, CND/BT2850)
YEL
ATT
AMP REM
AMP REM
MAX 0.3 A
LIGHT BLU
BLU / WHT
ATT
AMP REM
AMP REM
MAX 0.3 A
LIGHT BLU
BLU / WHT
1-875-412-
1-875-412-
11
(11)
11
(11)
ANTENNA BOARD (SIDE A)
ANTENNA BOARD (SIDE B)
(BT2850: E)
(BT2850)
(BT2850)
(BT2807E)
(BT2850: E)
(BT2800/BT2807E)
(BT2800: US, CND/BT2850)
(BT2800: AEP, UK/BT2850)
(BT2800: AEP, UK/BT2807E)
(BT2800/BT2850: EA)
BT2800: US, CND/
BT2807E
(BT2800/BT2850)
(BT2807E)
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
PATTERN
ANTENNA
ANTENNA
(BT2800: US, CND)
(BT2800: US, CND)
(BT2800: US, CND)
(BT2800: US, CND/BT2850)
(BT2800: US, CND)
C609
Q581
Q582
R585
R541
R540
R803
5
4
1
3
JC533
(BT2800: AEP, UK/BT2807E/BT2850)
IC800
C805
5
4
1
3
IC681
R681
C684
R535
R536
(BT2800: US, CND)
(BT2800: AEP, UK/BT2807E/BT2850)
JC497
JC499
R414
R413
Note: When the BT board is replaced, it is necessary to confi rm opera-
tion. Refer to “BLUETOOTH FUNCTION CHECKING METHOD
USING A CELLULAR PHONE” of the servicing notes (See page 6).
USING A CELLULAR PHONE” of the servicing notes (See page 6).
(Page 26)
MEX-BT2800/BT2807E/BT2850
MEX-BT2800/BT2807E/BT2850
23
23
4-2. SCHEMATIC DIAGRAM - MAIN Section (1/3) -
• See page 21 for waveforms. • See page 28 for IC Block Diagrams. • See page 31 for IC Pin Function Description.
IC B/D
S502
R510
D510
D512
R561
R679
JC302
JC301
R531
R534
R663
R756
CNP301
R565
R530
R517
C302
C301
C343
C312
R528
FB309
R578
C305
R301
C309
C310
C308
JW117
JW116
C504
R550
JW67
C523
C522
R662
C513
R673
R505
C514
C512
C501
R502
R504
R503
R671
R661
JW44
JW143
JW119
R547
R511
R514
R532
R513
R512
R570
C508 C507
X502
R533
R508
R501
R509
C510
R543
R677
R529
JW58
C509
R567
JC521
R522 R521
C521 C520
R674
R672
R676
R675
R636
R500
R539
FB311
FB312
FB308
IC800
R506
R520
JW83
FB304
R573
R538
R549
R574
R507
R537
R551
R575
R546
JC513
JW69
C502
C804
Q808
Q807
R811
R810
Q806
JC800
R833
R832
R834
R835
D801
FB800
C800
C827
R802
R801
C828
R800
JC803
C801
JC802
CN804
R836
R837
R838
R839
R840
R841
R842
R843
R844
R845
R846
R847
R553
X501
R848
R849
R850
R851
R852
R853
R564
JC501
D502
R302
CN805
JC801
IC501
R519
R542
D800
C306
C802
R664
1k
LBAT54A
LBAT54C
100k
1k
0
0
100k
10k
1k
47k
28P
100k
100k
0
R516
0
100
10V
22
25V
0.01
0.01
100k
0
1k
100
10V
1k
560p
560p
0.01
0.01
100k
0.01
0.01
10k
0.01
10k
10k
0.001
0.001
0.01
1k
10k
1k
100
1k
1k
1k
100k
100k
100k
R536
10k
1k
470
18p 15p
32.678KHz
100k
220k
10M
0
0.01
1k
0
100k
0.0022
100k
0
2.2k
2.2k
47p 47p
100k
100
1k
1k
100k
10k
100k
TK11133CSCL
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
0
0.001
0.01
RT1N441C
RT1N441C
1k
470
2SB1690K
0
100
0
100
100
BAT54A
0
0.01
0.01
1k
1k
47
16V
0
0
100
10V
0
13P
100
100
100
100
100
100
100
100
100
100
100
100
100k
11.06MHz
100k
100k
100k
100k
100k
100k
100k
0
LRB751V
1k
13P
0
R5F3640DDA17FA
100k
1k
RB705D
0.01
0.1
10k
A1
A2
A3
A4
A5
A6
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
C1
C2
C3
C4
C5
C7
C8
C9
C10
C11
C12
I2C-SCL
I2C-SDA
L-CE
L-DA
NOSE-SW
BEEP
UNISI
UNISCK
SYSRST
BUSON
CDM_ON
CD_ON
SIR
Z-MUTE
RESET
BUSON
BUIN
KEY0
KEY1
RE-0
RE-1
SADATA
RESET
ACC
ATT
DIAG
STB
CD_ON
TEL
Z-MUTE
BT_FR
BT_MUTE
BT_ST3
BT_ST2
BT_ST1
BT_ST0
BT_PL
BT_IRQ
BT_INT
BT_TE2
BT_TE1
BT_RST
BT_ON
BT_OP
BT_MF
BT_FF
BT_MIC_POW
BT_PWRCTRL
BT_FF
BT_FR
BT_MUTE
BT_PWRCTRL
CDM_ON
BT_RST
BT_ON
BT_MF
BT_OP
BT_MIC_POW
BT_ST3
BT_ST2
BT_ST1
BT_INT
BT_IRQ
BT_TE2
BT_TE1
SYSRST
SACLK
RCIN0
RCIN1
UNISO
UNISI
UNISCK
BT_PL
BT_ST0
RCIN0
RCIN1
L-CLK
BUIN
LINK_OFF
9K
10K
KEYIN1
KEYIN0
UNISO
UNISI
RESET
BEEP
OSCIN
OSCOUT
XIN
XOUT
BUIN
TESTIN
TELATT
ATT
SYSRST
BUSON
DIAG
NCO
NCO
DAVN
I2C_SIO
SIRCS
AREASEL0
AREASEL1
NCO
NCO
NCO
VSS
AREASEL2
VSS
UNISCK
NOSE_SW
LCD_CKO
AVRH
RC_IN0
RC_IN1
ACC_IN
RDS_ON
LCD_CE
LCD_SO
RE-IN1
RE-IN0
RE-IN0
NCO
CYRIL_SEL
CDM_ON
CD_ON
Z-MUTE
AMPSTB
AREASEL3
VCC1
KEYACK1
KEYACK0
AVSS
AVDD
VCC2
CNVSS
BYTE
NMI
I2C_SCK
DEMO SEL
ILLUMI SEL
DIM SEL
B-OUT SEL
NCO
BT_STATUS0
NCO
NCO
NCO
RESET
STAPWR
TU-ATT
EPM
CE
VSM
FW_RXD
FW_
TXD
BT_TEST1
BT_TEST2
BT_INT-HF
BT_CVC
BT_PLAY
NCO
FW_CLK
BT_STATUS1
BT_STATUS2
BT_STATUS3
BT_MUTE
BT_FF
BT_FR
FW_BUSY
BT_MICPWR
BT_PWRCTRL
BT_OPRPWR
BT_
BT_
NCO
NCO
SAIN
SADATD
SACLK
NCO
BT_AUDIO_SEL
BT_
MFUNC
MFUNC
(1/3)
CD MECHANISM DECK
SENSOR
BOARD
SERVO BOARD
MG-101L-188//Q
REGULATOR
+3.3V
(BT2807E)
(BT2800/BT2850)
(BT2850)
(BT2800/BT2807E)
(BT2807E)
(BT2800: US, CND/BT2807E)
(BT2800: AEP, UK/BT2807E)
(BT2800: US,CND/BT2850)
(BT2800: AEP, UK/BT2850)
FREQUENCY
SELECT
(BT2850: E)
(BT2850: E)
SYSTEM CONTROLLER
B+ SWITCH
Q806-808
(PATTERN ANTENNA)
CN1
BOARD
BT
MIC201
(BT2800/BT2850: EA)
(BT2850: E)
TEST
R803
10k
C805
1000p
CONT
VIN
GND
NP VOUT
BT2800: AEP, UK/
BT2807E/BT2850
JC533
0
R535
10k
(BT2800: US,CND)
BT2800: AEP, UK/
BT2807E/BT2850
(Page 24)
(Page 24)
(Page 24)
(Page
25)
Note: When the BT board is replaced, it is necessary to confi rm opera-
tion. Refer to “BLUETOOTH FUNCTION CHECKING METHOD
USING A CELLULAR PHONE” of the servicing notes (See page 6).
USING A CELLULAR PHONE” of the servicing notes (See page 6).
MEX-BT2800/BT2807E/BT2850
MEX-BT2800/BT2807E/BT2850
24
24
• See page 28 for IC Block Diagrams.
4-3. SCHEMATIC DIAGRAM - MAIN Section (2/3) -
C623
IC602
C757
C683
IC681
C761
D760
C602
D601
C617
D617
C618
R635
R631
S702
C519
R601
C503
C682
C681
C622
D759
D761
D762
D511
Q478
C479
D479
C770
C769
C750
C752
C763
C765
C776
C771
C751
C435
C445
C442
C432
C764
C774
JC502
D754
D753
D755
D756
Q479
Q511
JC511
D475
R479
C758
C753
JC755
JC754
R652
R651
D651
R653
FU601
IC750
D602
JC303
C775
CN601
L601
250
PH
C601
1000
10V
PST8228UL
2.2
10
50V
TK11133CSCL-G
220
10V
1A4-A2
0.1
1N5404
0.001
MAZ8180GM
0.001
10k
10k
0.1
100k
100
10V
0.1
0.1
1000
10V
1A4-A2
1A4-A2
1A4-A2
MC2838
RT1N141C
47
16V
MA2J1110
0.22
0.22
0.22
47
16V
0.22
0.22
0.001
1
0.22
1
1
1
1
0.22
0.22
0
1A4-A2
1A4-A2
1A4-A2
1A4-A2
RT1P141C
RT1P141C
0
MA2J1110
22
10
50V
22
25V
0
0
47k
1k
MAZ8180GM
10k
10A
32V
1A4-A2
0
0.22
16P
3300
16V
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
E16
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
RESET
I2C-SDA
I2C-SCL
RL-
RL-
RL+
RL+
FL-
FL-
FL+
FL+
FR-
FR-
FR+
FR+
RR-
RR-
RR+
RR+
REGULATOR
+3.3V
(2/3)
RESET
MUTING
CONTROL
MUTING
CONTROL
Q478-479
TDA8588AJ
POWER AMP, REGULATOR
ATT
AMP REM
BATT
GND
MAX 0.3A
ACC
AMT REM
BATT
GND
FRONT LCH-
FRONT LCH+
REAR LCH+
REAR LCH-
REAR RCH+
REAR RCH-
FRONT RCH+
FRONT RCH-
ACC
GND
BATT
ATT
AMP REM
MAX0.3A
ACC
AMT REM
ANT REM
MAX0.1A
(BT2800: AEP, UK/BT2807E)
(BT2800: US, CND/BT2850)
RESET SIGNAL GENERATOR
TO
CN601
TO
CN601
R633
Q631
Q580
D581
FB563
TH580
JW113
JW134
R583
R634
C631
R632
JW41
JW46
FB562
FB561
CN580
R580
C582
JC580
R590
R581
Q586
D583
D582
D584
R588
R587
R591
Q587
C580
(BT2800: US, CND)
R654
Q651
R582
D580
R555
R554
J561
C581
JC581
JW63
47k
2SC3052EF
RT1N141C
MAZ8180GM
1k
4.7k
0.47
C632
0.47
0.1
47k
8P
100k
0.1
0
0
100
RT1P141C
MA2ZD14001SO
MAZ8180GM
MAZ8180GM
1k
1k
4.7k
FMC2A
0.01
BA8271F-E2
10k
2SC3052EF
330k
330k
3P
470
25V
0
A1
A2
A3
A4
A5
A6
UNISI
UNISO
UNISCK
BUSON
SYSRST
LINK_OFF
ACC
BUIN
TEST
BUS
INTERFACE
REMOTE
IN
BUS
CONTROL IN
TEL ATTENATION DETECT
BATTERY CHECK
-1
-2
Q586,587
LINK ON/OFF
ACC DETECT
Q581
RT1N441C
Q582
2SC3052EF
BATTERY CHECK
Q581, 582
R540
100k
R584
220k
R585
220k
R541
100k
R582
1k (BT2800: AEP, UK/BT2807E/BT2850)
15k (BT2800: US, CND)
D580
MAZ8062 (BT2800: US, CND)
MAZ8075 (BT2800: AEP, UK/BT2807E/BT2850)
(BT2800: AEP, UK/BT2807E/BT2850)
C609
TEL
VIN
VOUT
CONT
GND
NP
R681
10k
C684
0.001
FB604
0
(Page 23)
(Page 23)
(Page 23)
(Page 25)
Click on the first or last page to see other MEX-BT2800 / MEX-BT2807E / MEX-BT2850 service manuals if exist.