Sony MEX-DV1000 / MEX-DV2000 Service Manual ▷ View online
17
17
MEX-DV1000/DV2000
MEX-DV1000/DV2000
SECTION 4
ELECTRICAL ADJUSTMENTS
SERVO SECTION
If any of the following parts was replaced, perform the “IOP Check”
and “E, F Signal Offset Adjustments” as mentioned below.
and “E, F Signal Offset Adjustments” as mentioned below.
Note:
In this set, the SERVO board where the E, F SIGNAL OFFSET
ADJUSTMENT circuit has not mounted exists.
The SERVO board where the E, F SIGNAL OFFSET ADJUSTMENT
circuit has not mounted should not execute the E, F SIGNAL OFFSET
ADJUSTMENT.
Refer to “ABOUT THE SERVO BOARD E, F SIGNAL OFFSET
ADJUSTMENT CIRCUIT DELETION” (page 4) in servicing notes
for how to distinguish the set.
ADJUSTMENT circuit has not mounted exists.
The SERVO board where the E, F SIGNAL OFFSET ADJUSTMENT
circuit has not mounted should not execute the E, F SIGNAL OFFSET
ADJUSTMENT.
Refer to “ABOUT THE SERVO BOARD E, F SIGNAL OFFSET
ADJUSTMENT CIRCUIT DELETION” (page 4) in servicing notes
for how to distinguish the set.
•
Optical pick-up block (chassis (OP, Z) complete assy
or chassis (OP, Z) sub assy)
or chassis (OP, Z) sub assy)
•
Mounted SERVO board
•
SERVO board: IC2
R4, R5, R7, R8, R9, R10, R19, R27,
R28, R29, R31, R34, RV1, RV2
R28, R29, R31, R34, RV1, RV2
Precaution
Use the following tools and measuring devices.
• Extension jig (Part No. J-2502-107-1) between the SERVO
board and the MAIN board
• DVD test disc TDV-540C (Part No. J-2501-235-A)
• CD test disc PATD-012 (Part No. 4-225-203-01)
• Driver for adjustment
• TV moniter
• Digital voltmeter
• Oscilloscope
• Accessory remote commander
RM-X161 (DV2000: US and Canadian models)
RM-X162 (DV2000: Russian model)
RM-X163 (DV2000: E, Indian and Chinese models)
RM-X166 (DV1000: AEP, UK and Russian models)
RM-X167 (DV1000: E, Indian and Chinese models)
RM-X162 (DV2000: Russian model)
RM-X163 (DV2000: E, Indian and Chinese models)
RM-X166 (DV1000: AEP, UK and Russian models)
RM-X167 (DV1000: E, Indian and Chinese models)
IOP CHECK
Connection:
Procedure:
1. Check the IOP value of DVD and CD by label on the optical
pick-up.
2. Connect a digital voltmeter to TP51 (IOPDVD) and TP63
(A3.3V) on the SERVO board.
3. Playback the DVD test disc (TDV-540C), and make a note of
the value of digital voltmeter.
4. Divide the measured voltage value by 1, and convert it into
current value.
5. Check that the calculated value is within
±6 mA to the IOP
value given on the label.
6. Connect a digital voltmeter to TP47 (IOPCD) and TP63
(A3.3V) on the SERVO board.
7. Playback the CD test disc (PATD-012), and make a note of
the value of digital voltmeter.
8. Divide the measured voltage value by 1, and convert it into
current value.
9. Check that the calculated value is within
±6 mA to the IOP
value given on the label.
E, F SIGNAL OFFSET ADJUSTMENTS
Connection:
Procedure:
1. Connect an oscilloscope to TP58 (E) and TP45 (OPGND) on
the SERVO board.
2. Connect a TV moniter to VIDEO OUT jack of the set.
3. Insert the CD test disc (PATD-012).
4. Detach the front panel of the set.
5. Press the [RESET] button of the set in the state of chucking.
6. Attach the front panel of the set.
7. Escape the setup of the set (It becomes a clock display).
8. In the standby status, press the [4] key of the set or the remote
3. Insert the CD test disc (PATD-012).
4. Detach the front panel of the set.
5. Press the [RESET] button of the set in the state of chucking.
6. Attach the front panel of the set.
7. Escape the setup of the set (It becomes a clock display).
8. In the standby status, press the [4] key of the set or the remote
commander.
9. Press the [5] key of the set or the remote commander.
10. Press the [DSPL] key of the set or the remote commander for
10. Press the [DSPL] key of the set or the remote commander for
more than two seconds.
11. When the test mode activated, it is display in the TV monitor
as shown in the figure below.
12. Press the [7] key of the remote commander.
13. Adjust the RV2 on the SERVO board so that waveform level
13. Adjust the RV2 on the SERVO board so that waveform level
of oscilloscope becomes between 2.65 and 2.70 V as follows.
14. Connect an oscilloscope to TP57 (F) and TP45 (OPGND) on
the SERVO board.
15. Adjust the RV1 on the SERVO board so that waveform level
of oscilloscope becomes between 2.65 and 2.70 V as follows.
16. Press the [9] button on the remote commander to stop the CD
test disc.
Note:
When you feel the doubt in the operation of the test mode in each
adjustment and check item, enter the test mode again once after
pressing the
adjustment and check item, enter the test mode again once after
pressing the
[RESET]
button of the set.
Adjustments Location:
SERVO board
TP51 (IOPDVD), TP47 (IOPCD)
TP63 (A3.3V)
+
–
–
digital voltmeter
DVD IOP value
CD IOP value
Optical Pick-up Label:
A******
$$$ ###
$$$ ###
********
SERVO board
TP58 (E), TP57 (F)
TP45 (OPGND)
+
–
–
oscilloscope
(DC range)
0 V
level: 2.65 to 2.70 Vp-p
E Signal Waveform:
level: 2.65 to 2.70 Vp-p
F Signal Waveform:
0 V
TP58
(E)
TP63
(A3.3V)
TP57
(F)
TP51
(IOPDVD)
TP47
(IOPCD)
TP45
(OPGND)
– SERVO Board (Conductor Side) –
RV1
F Signal Offset Adjustment
RV2
E Signal Offset Adjustment
Ver. 1.4
MEX-DV1000/DV2000
18
18
MEX-DV1000/DV2000
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM – SERVO/VIDEO Section –
DVD PROCESSOR
IC4
SD-RAM
IC10
OPTICAL PICK-UP BLOCK
KHS-360A
RF+
DQ0 – DQ15
BA0
20
D/A CONVERTER
IC6
VO1+
35
VO1–
34
VO2–
31
VO2+
32
VO3+
29
VO3–
28
VO4+
26
VO4–
25
U1
10
V1
6
W1
2
HU+
14
HU–
15
HV+
16
HV–
17
HW+
18
HW–
19
HB
13
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC1
A0 – A11
X1
27MHz
RF–
PD
LIMIT SWITCH
GSW
LD (DVD)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q5
LD (CD)
VC
MSW
VR (DVD)
FCS+
FCS–
TRK+
TRK–
SLED MOTOR A+
SLED MOTOR A–
SLED MOTOR B+
SLED MOTOR B–
COIL U
U2
11
COIL V
COIL W
HALL U+ (H1+)
HALL U– (H1–)
HALL V+ (H2+)
HALL V– (H2–)
HALL W+ (H3+)
HALL W– (H3–)
HALL_BAIS–
AUTOMATIC POWER
CONTROL (FOR CD)
Q3
Q12
Q11
VC
DVD ON SWITCH
Q4
VR (CD)
CD ON SWITCH
Q2
Q1
V2
7
W2
3
42
IN1
238 FO_DRV
43
IN2
231 TR_DRV
44
IN3
237 STA
45
IN4
236 STB
46
INSP
234 SP_DRV
24
STBY
244 DRV_XSTBY
47
FG
241
DUPRD1
246 FG
193 RFP
194
134
RFN
215 DVD_LD
214 CD_LD
213 DVD_MD
212 CD_MD
137 HOME
209 VC
222 CD_DVD
221 OP_GAIN
23 – 26,
29 – 34, 22, 35
120, 118, 115, 112,
108, 105, 102, 100
98, 101, 104, 106,
110, 114, 116, 119
58, 57, 55, 54, 52,
49, 47, 45, 26, 24,
49, 47, 45, 26, 24,
22, 19, 17 – 15, 13,
14, 43, 40, 37, 29
RAMDAT0 – RAMDAT15
RAMADD0 – RAMADD11
77, 75, 72, 70,
69, 71, 73, 76,
69, 71, 73, 76,
79, 83, 81, 85
2, 4, 5, 7, 8, 10,
11, 13, 42, 44, 45,
47, 48, 50, 51, 53
87
RAMBA0
BA1
21
86
RAMCS0
CLK
38
96
PCLK
CKE
37
64
RAMCKE
CS
19
89
RAMCS1
RAS
18
90
RAMRAS#
CAS
17
91
RAMCAS#
WE
16
93
RAMWE#
DQMH
39
94
RAMDQM
DQML
15
FLASH MEMORY
IC11
DQ0 – DQ14,
DQ15/A-1
WE
11
A0 – A20
25 – 18, 8 – 1,
48, 17, 16, 9, 10
MEMDAT0 – MEMDAT15
MEMADD0 – MEMADD20
29, 31, 33, 35, 38,
40, 42, 44, 30, 32, 34,
36, 39, 41, 43, 45
51, 46, 42, 36, 33,
28, 25, 20, 48, 44, 39,
35, 31, 27, 23, 18
32
MEMWR#
OE
28
53
MEMRD#
26
56
MEMCS0#
11
MEMCS1#
CE
12
157
RESET#
D+3.3V
RST
BUFFER
IC8
5
6
2
7
3
1
MEMADD0
MEMADD1
SWITCHING
IC9
33 MSTR-TX
50 M_RESET
72 EJECT
71 LOAD
53 DSW
242
DUPTD1
34 MSTR-RX
248
EN
37 M_CTS
247
REQ
36 M_RTS
LOADING
MOTOR DRIVE
IC102
+5.5V
REGULATOR
IC103
D101
D102
54 A_MUTE
75 Z_MUTE
B/U B+
VCC
M1
(LOADING)
SW1
(CHUCKING END)
SW2
(SELF)
SW3
(DISC IN)
M
51 SELFSW
52 INSW
160
159
XIN
XO
SYSTEM CONTROLLER
IC501 (1/3)
129 – 127
AOUT0 – AOUT2
AMCLK
5
6, 11, 12
DATA1 – DATA3
SCK
132
ABCLK
7 BCK
131
ALRCLK
8 LRCK
125
IDGPCIO0
4 MD/SDA
124
ICGPCIO0
3 MC/SCL
130
AIN2
55 VMUTE_R
56 VMUTE_F
138
AMUTE
181
DAC6 (CVBS)
2 MS/ADR
20
VO5 FL
28
ZERO2
19
VO6 FR
R-CH
FL
22
VO3 LS
LS
27
VO1 C
CEN
26
VO2 W
SUB
AIN_L
VMUTE_F
21
VO4 RS
R-CH
R-CH
A/D CONVERTER
IC7
15 SCIK
136
AIN1
12 DOUT
11 BCK
10 LRCK
1
VINL
VIDEO AMP
IC701
4
1
VIN
2
VOUT
MUTE
2
VINR
VMUTE_R
VIDEO AMP
IC702
4
1
VIN
2
VOUT
MUTE
A
FL, LS, CEN, SUB, AIN_L
B
A_MUTE
(DV2000)
CN302 (1/4)
REAR VIDEO OUT
FRONT VIDEO OUT
VIDEO OUT
(DV1000)
VMUTE_F
VMUTE_R
: DVD/CD PLAY (AUDIO)
: DVD/CD PLAY (VIDEO)
SIGNAL PATH
R-ch is omitted due to same as L-ch.
6
8
RV2
COMPARATOR
IC2 (1/2)
E SIGNAL
OFFSET
A
B
C
D
E
A+5V
RV1
COMPARATOR
IC2 (2/2)
F SIGNAL
OFFSET
F
A+5V
(TYPE B)
(TYPE A)
(TYPE A)
196 A
198 B
201 C
203 D
206 E
208 F
(Page 19)
(Page 19)
Ver. 1.4
Note: Refer to “ABOUT THE SERVO BOARD E, F SIGNAL OFFSET ADJUST-
MENT CIRCUIT DELETION” (page 4) in servicing notes for TYPE A/TYPE B.
MEX-DV1000/DV2000
19
19
MEX-DV1000/DV2000
5-2. BLOCK DIAGRAM – TUNER/AUDIO Section –
ELECTRICAL VOLUME
IC307
X1
8.664MHz
9
8
10
XTI
RESETN
XTO
CN302 (2/4)
10
8
EEPROM
IC504
TUNER UNIT
TUX201
J201
(ANTENNA IN)
RDS DECODER
IC201
L
R-CH
7
VDDD
1
VDDA
1
4
R 3
TU_SDA 14
ANT
SDA
TU_SCL 13
SCL
SDA 12
SDA
NSMASK
SDA
SCL 11
INTN 15
28
DAVN
SCL
S_METER 6
VSM
QUALITY 5
QUALITY
TU_MUTE 7
TU MUTE
MUTE-CONDITION 8
MUTE CON
E2P_SDA 17
TRDA
E2P_SCL 16
TRCL
RDS 9
MPX 16
TUNER NOISE MASK
CONTROL SWITCH
Q202
B+ SWITCH
Q203, 204
B/U+3.3V
(DV1000: AEP, UK, Russian/DV2000: Russian)
I2CSIO
SCL
27
I2CCKO
VSM
83
VSM
QUALITY
82
QUALITY
NSMASK
19
NSMASK
DAVN
17
DAVN
TU MUTE
21
TUNATT
MUTE CON
18
TUNATTIN
TRDA
22
EESIO
SADATA
79
SA_IN
SACLK
32
SA_CLK
VOLATT
48
VOL_ATT
TX
29
E_VOL_SO/TX
CLK
31
E_VOL_CKO
RX
30
E_VOL_CS/RX
40
OPEN_MUTE
TRCL
23
EECKO
CN301 (1/2)
15
13
CN302 (3/4)
1
R-CH
R-CH
BUS AUDIO IN
BUS AUDIO IN
MIC IN
(DV1000)
(DV2000)
(L)
(R)
(L)
(R)
7 SE2L
5 SE3L
SDA
11 DIFFL
28 MIC
9 SE1L
2 INAFL
POWER AMP
IC802 (1/2)
12 IN_RR
FL+
11 IN_RF
J901
AUX
A
FL, LS, CEN, SUB, AIN_L
LS
FL
LINE AMP
IC306
LINE AMP
IC305
CEN
SUB
AIN_L
LINE AMP
IC304
FL–
8 INARL
5 INAC
6 INASW
11 INBFL
INPUT SELECTOR,
AUDIO PROCESSOR
IC302
OUTLR 19
OUTLF 20
OUTAFL 22
RR+ 5
RR– 3
OUTARL 26
OUTAC 24
OUTASW 25
23
SDA
SCL
22
SCL
SDA
SCL
SAOUT
26
SADATA
SAIN
25
SACLK
MUTE
21
VOLATT
SDA
35
TX
SCK
36
CLK
CS
37
ACGND
16
DIAG
25
STB
22
SDA
2
SCL
4
RX
MUTING
Q307
MUTING
Q304
MUTING
Q303
MUTING
Q302
MUTING
CONTROL SWITCH
Q310, 311
R-CH
R-CH
D309
D306
42
ATT
D505
B/U B+
46
STB
45
DIAG
20
BEEP
+
+
D305
CN301 (2/2)
SUB OUT
CENTER OUT
7
5
CN801 (1/2)
1
9
FR+
FR–
4
12
1
FRONT AUDIO OUT
(L)
(R)
R-CH
R-CH
CN302 (4/4)
3
5
REAR AUDIO OUT
(L)
(R)
R-CH
3
(DV2000)
FL+
FL–
RF+ 9
RF– 7
1
9
FR+
FR–
4
12
R-CH
SYSTEM CONTROLLER
IC501 (2/3)
: DVD/CD PLAY (AUDIO)
: TUNER (FM/AM)
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: BUS AUDIO IN
: AUX IN
: MIC IN
B
A_MUTE
C
DOOR_SW
(DV2000)
MIC AMP
IC301
(Page 18)
(Page 20)
(Page 18)
MEX-DV1000/DV2000
20
20
MEX-DV1000/DV2000
5-3. BLOCK DIAGRAM – PANEL/POWER SUPPLY Section –
SYSTEM CONTROLLER
IC501 (3/3)
B/U B+
B/U +5V
B/U +3.3V
M901
(FAN)
(FAN)
FL900
FLUORESCENT
INDICATOR TUBE
DIO
CLK
CS
1G – 3G
VH
GRID 1 – GRID 3
GRID DRIVE
Q993 – Q991
VH+12V
RESET
F+
VDD
D+3.3V
D982
DISP_SO
3
DISP_CKO
5
DISP_SI
4
KEYACK0
88
KEYACK1
87
RE_0
89
RE_1
90
SIRCS
S502
(FRONT PANEL DETECT)
78 NOSE_SW
34 REG5
91
DOOR_SW
93
UNISO
99
UNISI
98
UNICKO
100
BUS_ON
76
SYSRST
77
BU_IN
73
TEMP
XOUT
80
DATA
DATA IN
6
9
CLK
4
BUS ON
1
RST
2
BATT
3
RC_1
65
RC_0
86
84, 85
KEYIN0, KEYIN1
S201, 901 – 904,
S906 – 917,
RE901 (1/2)
RE901 (1/2)
ROTARY
ENCODER
CNJ903
(REMOTE IN)
REMOTE CONTROL
RECEIVER
IC971
CN901
18
CN201
18
C
DOOR_SW
TH501
B/U B+
SONY BUS INTERFACE
(FOR SONY BUS)
IC603
CN602
(BUS CONTROL IN)
5
4
B-DATA
B-CLK
6
BUS-ON
2
RESET
7
+BATT
TH601
D604
D606
BATTERY
DETECT
Q604
DATA OUT 8
CLK IN 11
BUS ON 12
RESET 13
TELLATT 66
BU_IN 10
11
XIN
13
X502
6MHz
X501
32.768kHz
XCOUT
9
XCIN
8
37 REG2
B+
CN801 (2/2)
19
ANT-R
6
ACC
PARKING
7
15
ILL
TEL-MUTE
14
13
LEVEL SHIFT
Q803
ILLIN 64
ILLUMINATION
CHECK
Q804
ACCIN 68
RESET 10
FAN 2
FSW_OUT 70
3.3V_ON 74
ACCESSORY
CHECK
Q802
D811
PARKING 67
D818
D822
D810
(DV2000)
FAN MOTOR
DRIVE
Q901 – 903
DOOR_IND 92
M
VP 35
SW2 27
AMP-R
5
D809
SW1 29
LED901 – 904,
LED906 – 917,
LED906 – 917,
LED941 – 944
(KEY ILLUMINATION)
LED201
(DISC SLOT ILLUMINATION)
LED202
+3.3V
REGULATOR
IC503
VH+12V
D+3.3V
+12V
REGULATOR
IC405
AUDIO +8.3V
DAC +5V
30 REG1
+5V
REGULATOR
IC804
TU +5V
+5V
REGULATOR
Q201
A +5V, DR+5V
VIDEO +3.3V
33 REG4
+3.3V
REGULATOR
IC5
D +1.8V
+1.8V
REGULATOR
IC101
RESET SIGNAL
GENERATOR
IC502
S501
RESET
REGULATOR
IC802 (2/2)
LED DRIVE
Q401, 402
AUDIO–8.3V
–8.3V
REGULATOR
Q805, 806
PANEL+3.3V
B+ SWITCH
Q403, 405
FL_ON 69
Z
V_IN 1
2
6
SW
RT
FSW_IN 1
7
EN
OSC
Q404
DC/DC CONVERTER
IC601
VCC 8
DTC 1
5 OUT
11 VREF
SWITCHING REGULATOR
IC803
10
CTL
PUSH SOUND/
ENTER
RE901 (2/2)
(Page 19)
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