Sony MEX-BT5000 Service Manual ▷ View online
MEX-BT5000
21
3-11. OPTICAL PICK-UP (KSS1000E)
3-12. SL MOTOR ASSY (SLED) (M902)
1
tension coil spring (CHKG)
2
chucking arm sub assy
4
rack (SL)
5
claw
6
main shaft
7
optical pick-up (KSS1000E)
3
screw
(B1.4
(B1.4
×
5)
1
screw
(P1.4
(P1.4
×
1.8)
2
SL motor assy (sled)
(M902)
(M902)
MEX-BT5000
22
3-13. LE MOTOR ASSY (B) (LOADING) (M903)
3-14. SERVO BOARD
3
qs
2
gear (LE1)
6
leaf spring (LE)
4
lever (D)
bracket (LEM-N)
slider (R)
5
screw
(P1.7
(P1.7
×
2.2)
7
screw
(M1.7
(M1.7
×
2.5)
q;
screw
(M1.7
(M1.7
×
2.5)
qd
two toothed lock screws
(M1.4)
(M1.4)
qa
screw
(M1.7
(M1.7
×
2.5)
8
bearing (LEB-N)
9
gear (LE) assy
qf
LE motor
assy (B)
(loading)
(M903)
assy (B)
(loading)
(M903)
1
Remove the two solders.
5
claw
6
SERVO board
4
screw
1
Remove the eight solders.
2
Remove the three solders.
3
optical pick-up flexible board (16 core)
(CN1)
(CN1)
23
23
MEX-BT5000
MEX-BT5000
SECTION 4
TEST MODE
SERVICE MODE
The version of each microcomputer is displayed. The firmware can
be updated.
be updated.
1.
Version Display
Procedure:
1. Power supply of the set is turned off.
2. Press the [4]
2. Press the [4]
t [5] t [6] ([6] is pressed for two seconds)
button of the set sequentially, and enter the service mode.
3. The version of each microcomputer confirmation screen is
displayed.
4. Press the [OFF] button of the set, and release the service mode.
2.
The Version Up of the Firmware
To secure the connectivity with the new cellular phone etc. put on
the market after this machine is put on the market, the upgrade in
service is done.
Procedure:
the market after this machine is put on the market, the upgrade in
service is done.
Procedure:
1. The USB memory is prepared, and the firmware is downloaded
to the USB memory. (The USB memory is a thing to prepare
the one of about 64MB made of SONY POCKET BIT.)
the one of about 64MB made of SONY POCKET BIT.)
2. Power supply of the set is turned off.
3. Press the [4]
3. Press the [4]
t [5] t [6] ([6] is pressed for two seconds)
button of the set sequentially, and enter the service mode.
4. Wait for 1 minute after executing step 3, the set is connected
with the USB memory with connected the USB cable (Part.
No. J-2502-103-1).
No. J-2502-103-1).
5. Wait for 1 minute (time untill access LED of USB memory
disappears) after executing step 4, push the joystick for two
seconds of the set, and the version up confirmation screen is
displayed.
seconds of the set, and the version up confirmation screen is
displayed.
6. Select “Yes” by using the UP/DOWN of joystick, and confirm
the displayed version number, and push the joystick.
7. The version up is executed. When the version up ends, reset is
automatically done, and usual screen of power off state is
displayed.
displayed.
DIAG MODE
Mode that memorizes reset frequency and operating time, etc. in
nonvolatile memory, and reads it.
Procedure:
nonvolatile memory, and reads it.
Procedure:
1. Turn off the setting of the bluetooth signal, and power supply
is turned off.
2. Press the [4]
t [5] t [4] ([4] is pressed for two seconds)
button of the set sequentially, and enter the DIAG mode.
3. Following information is displayed when operating it according
to Fig.1.
Reset frequency
Frequency to which [RESET] button is pressed and
frequency of POWER ON RESET when power supply is
turned on.
Software reset when releasing test mode is not counted.
Number of maximum counts: 254 times.
frequency of POWER ON RESET when power supply is
turned on.
Software reset when releasing test mode is not counted.
Number of maximum counts: 254 times.
Reset frequency with watchdog timer
Reset frequency with watchdog timer.
Number of maximum counts: 254 times.
Number of maximum counts: 254 times.
Number of connected slave units
The number of an external connection of the SONY BUS
slave unit is memorized by 3 histories or less.
The SONY BUS slave unit that becomes an object is CD
slave, MD slave, and undefined slave.
Connected number in test mode is off the subject.
slave unit is memorized by 3 histories or less.
The SONY BUS slave unit that becomes an object is CD
slave, MD slave, and undefined slave.
Connected number in test mode is off the subject.
Operating time
Time that the set is operating (Every hour) is counted.
Operating time in test mode is off the subject.
Time of maximum counts: 65534 hours.
Operating time in test mode is off the subject.
Time of maximum counts: 65534 hours.
CD error information
CD mechanism error information in the head unit is
memorized by 3 histories or less.
The memorized content is error information, a track kind,
and operating time (Every hour).
Error in test mode is off the subject.
memorized by 3 histories or less.
The memorized content is error information, a track kind,
and operating time (Every hour).
Error in test mode is off the subject.
Amplifier IC with built-in power supply error information
Information on the OFFSET/FAILURE error with
amplifier IC with built-in the power supply is memorized
by 3 histories or less.
The memorized content is error information and operating
time (Every hour).
OFFSET/FAILURE error in test mode is off the subject.
amplifier IC with built-in the power supply is memorized
by 3 histories or less.
The memorized content is error information and operating
time (Every hour).
OFFSET/FAILURE error in test mode is off the subject.
4. Press the [OFF] button of the set, and release the DIAG mode.
Fig.1 Method of operating DIAG mode
01 Reset frequency
Joystick to right
Joystick to left
Joystick to right
Joystick to left
Joystick to right
Joystick to left
Jo
ystic
k to up
Jo
ystic
k to do
wn
Joystick to up
Joystick to down
Joystick to up
Joystick to down
Joystick to right
Joystick to left
Joystick to right
Joystick to left
Joystick to up
Joystick to down
Joystick to up
Joystick to down
Joystick to up
Joystick to down
Joystick to up
Joystick to down
Joystick to up
Joystick to down
Joystick to up
Joystick to down
Joystick to right
Joystick to left
Joystick to up
Joystick to down
Joystick to right
Joystick to left
02 Reset frequency with watchdog timer
031 Number of connected slave units (History 1)
032 Number of connected slave units (History 2)
033 Number of connected slave units (History 3)
04 Operating time
051 CD error information (error content + error detailed) (History 1)
052 CD error information (track kind + operating time) (History 1)
053 CD error information (error content + error detailed) (History 2)
054 CD error information (track kind + operating time) (History 2)
055 CD error information (error content + error detailed) (History 3)
056 CD error information (track kind + operating time) (History 3)
061 OFFSET/FAILURE error (History 1)
062 OFFSET/FAILURE error (History 2)
063 OFFSET/FAILURE error (History 3)
Jo
ystic
k to up
Jo
ystic
k to do
wn
Jo
ystic
k to up
Jo
ystic
k to do
wn
MEX-BT5000
24
24
MEX-BT5000
SECTION 5
DIAGRAMS
83
RFO
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
89
RFEQO
3
RFRP
6
TEI
88
RFI
RFRPI
2 RFZI
7 TEZI
9 FOO
PD1
PD2
E
F
I-V AMP
PD
LD
DETECTOR
81
AGCI
82
94
96
95
97
98
TNI
FPI1
FNI1
FPI2
FNI2
TPI
VRO
91 LDO
92
MDI
(FOCUS)
(TRACKING)
2-AXIS DEVICE
OPTICAL
PICK-UP BLOCK
(KSS1000E)
• Signal Path
: CD PLAY
LASER DIODE
M
M
M
18
17
VO3–
VO3+
14
13
VO1+
VO1–
12
11 VO2–
VO2+
10
9
VOL+
VOL–
FWD
REV
1
28
OPIN4– 26
OPIN4+ 27
OPOUT4 25
10 TRO
OPIN3– 23
OPIN3+ 24
OPOUT3 22
12 FMO
OPOUT1 4
13 DMO
OPOUT2 7
MUTE 21
BIAS 20
16
15
VO4–
VO4+
M903
(LOADING)
M901
(SPINDLE)
M902
(SLED)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
51
PIO3
48
PIO0
36
MSTBY
58
ZDET
37
/RST
43
/CCE
42
BUCK(CLK)
41
BUS3(SI)
CD_L
30
LO
27
RO
R-CH
27 DEC_SSTBY
15 CD_ZDET
15 CD_ZDET
14 CD_XRST
13 CD_XCCE
53 MEC_SELFSW
45 MEC_INSW
42 MEC_LIMIT
12 CD_BUCK
11 CD_BUS3
40
BUS2(SO)
10 CD_BUS2
39
BUS1
8
CD_BUS1
38
BUS0
7
CD_BUS0
81 X1
80 X0
MEC LOAD
43
DRVON
6
MEC EJECT
44
CD
SYSTEM CONTROL
IC3
+1.5V REG
IC6
SYSTEM CONTROLLER
IC501 (1/4)
37 DEC_XMUTE
30 DEC_INT
SW2
(SELF)
46 MEC_DSW
SW1
(DOWN)
SW3
(DISC IN)
SW4
(LIMIT)
56
UNISI
25
RXD
57
UNISO
58
UNICKI
50
BUS_ON
51
BU_IN
75
RSTX
61
XFLASH & EJECT_OK
67
MECON_CHK
1
CDON_1500MV
1.5V_ON
63
MECON
64
CDON
66
ZMUTE
60
A_ATT
26
TXD
PD1
E
F
VC
VC
VC
LOAD
LD
MON OUT
FCS+
FCS–
TRK+
TRK–
PD2
AUTOMATIC
POWER
CONTROL
Q21
+1.5V ON/OFF
SWITCH
Q2,3
• R-ch is omitted due to same as L-ch.
24
23
X2
16.934MHz
X1
12MHz
XI
XO
EJECT_OK
UNI_SI
UNI_SO
A_ATT
59
LINKOFF
LINK_OFF
UNI_CLK
BUS_ON
BU_IN
SYS_RST
91
CDON_IN
VOUT
94
CDMON_IN
95
CDMUTE_IN
CD +6V
93
68
CDON_CHK
1
5
VDD
3
CE
CD +3.3V
CD +1.5V
M +1.5V
BU +3.3V
84
100
A
C
B
(Page 26)
(Page 27)
(Page 26)
5-1. BLOCK DIAGRAM – CD SERVO Section –
Click on the first or last page to see other MEX-BT5000 service manuals if exist.