Sony MEX-DV900 / MEX-DV90EE Service Manual ▷ View online
MEX-DV90EE/DV900
17
If any of the following parts was replaced, perform the “IOP
Check” as mentioned below.
Check” as mentioned below.
• Optical pick-up block (chassis (OP, Z) complete assy)
• Mounted SERVO board
Precaution
Use the following tools and measuring devices.
• Extension jig (Part No. J-2502-062-1) between the SERVO
Use the following tools and measuring devices.
• Extension jig (Part No. J-2502-062-1) 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
• CD test disc PATD-012 (Part No. 4-225-203-01)
• Driver for adjustment
• TV
moniter
• Digital
voltmeter
• Oscilloscope
• Accessory remote commander RM-X168
• Accessory remote commander RM-X168
IOP CHECK
Connection:
Connection:
Procedure:
1. Check the IOP value of DVD and CD by label on the optical
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.
SECTION 4
ELECTRICAL CHECK
SERVO SECTION
SERVO board
TP51 (IOPDVD), TP47 (IOPCD)
TP63 (A3.3V)
+
–
–
digital voltmeter
DVD IOP value
CD IOP value
Optical Pick-up Label:
"
Check Location:
Note: In this set, the SERVO board of two types exists. Repair after distin-
guishing which type set of the repair referring to supplement-1.
TP63
(A3.3V)
TP51
(IOPDVD)
TP47
(IOPCD)
– SERVO Board (Side B) –
(Former type)
Ver. 1.1
TP63
(A3.3V)
TP51
(IOPDVD)
TP47
(IOPCD)
– SERVO Board (Side B) –
(New type)
MEX-DV90EE/DV900
18
MEMO
MEX-DV90EE/DV900
MEX-DV90EE/DV900
19
19
5-1. BLOCK DIAGRAM - SERVO/VIDEO Section -
SECTION 5
DIAGRAMS
(Page 20)
(Page 20)
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–
A
B
C
D
D
E
F
PD
LIMIT SWITCH
GSW
LD (DVD)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q5
LD (CD)
VC
MSW
VR (DVD)
FCS+
FCS–
FCS–
TRK+
TRK–
TRK–
SLED MOTOR A+
SLED MOTOR A–
SLED MOTOR A–
SLED MOTOR B+
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 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
196 A
198 B
201 C
203 D
206 E
208 F
198 B
201 C
203 D
206 E
208 F
215 DVD_LD
214 CD_LD
213 DVD_MD
212 CD_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
108, 105, 102, 100
98, 101, 104, 106,
110, 114, 116, 119
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#
CE
12
157
RESET#
D+3.3V
RST
5
6
2
7
3
1
MEMADD0
MEMADD1
SWITCHING
IC9
35 MSTR-TX
40 M_RESET
33 EJECT
37 LOAD
47 DSW
242
DUPTD1
36 MSTR-RX
248
EN
39 M_CTS
247
REQ
38 M_RTS
LOADING
MOTOR DRIVE
IC102
+5.5V
REGULATOR
IC103
D105
51 A_MUTE
50 Z_MUTE
B/U B+
VCC
M1
(LOADING)
SW1
(CHUCKING END)
SW2
(SELF)
SW3
(DISC IN)
M
49 SELFSW
48 INSW
160
159
XIN
XO
SYSTEM CONTROLLER
IC503 (1/3)
AMCLK
129
AOUT0
5 SCK
6 DATA
132
ABCLK
7 BCK
131
ALRCLK
8 LRCK
125
IDGPCIO0
4 MD
124
ICGPCIO0
3 MC
130
AIN2
52 VMUTE_F
138
AMUTE
181
DAC6 (CVBS)
2 MS
15
VOL
16
ZERO2
14
VOR
R-CH
VIDEO AMP
IC701
PJ701
4
1
VIN
2
VOUT
MUTE
A
FL
B
A_MUTE
VIDEO OUT
: DVD/CD PLAY (AUDIO)
: DVD/CD PLAY (VIDEO)
SIGNAL PATH
R-ch is omitted due to same as L-ch.
MEX-DV90EE/DV900
MEX-DV90EE/DV900
20
20
X1
8.664MHz
9
8
10
XTI
RESETN
XTO
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
30
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
(DV90EE/DV900: AEP, UK)
I2CSIO
SCL
29
I2CCKO
VSM
86
VSM
QUALITY
85
QUALITY
NSMASK
93
NSMASK
DA
VN
18
DA
VN
TU MUTE
90
TUNA
TT
MUTE CON
75
TUNA
TTIN
TRDA
77
EESIO
SAOUT
84
SA_IN
SADA
81
SA_DA
TA
SACLK
82
SA_CLK
VOLA
TT
59
VOL_A
TT
56
AT
T
TRCL
78
EECKO
R-CH
R-CH
AUX IN
(L)
(R)
2 RAU-X
4 TU-L
SDA
9 AUX-L
6 DVD-L
POWER AMP
IC802 (1/2)
12 FL IN_RR
FL+
11 IN_RF
J901
PJ301
AUX
A
FL
FL–
INPUT SELECTOR,
AUDIO PROCESSOR
IC301
OUT-RL 26
OUT-FL 22
RR+ 5
RR– 3
30
SDA
SCL
29
SCL
SDA
SCL
SOUT
19
SAOUT
DA
TA
18
SADA
CLK
17
SACLK
MUTE
28
VOLA
TT
ACGND
16
DIAG
25
STB
22
SDA
2
SCL
4
MUTING
Q306
MUTING
Q305
MUTING
CONTROL SWITCH
Q310, 311
R-CH
R-CH
D309
B/U B+
58
STB
57
DIAG
26
BEEP
D301
CN301
R-CH
1
3
CN801 (1/2)
1
9
FR+
FR–
4
12
REAR AUDIO OUT
(L)
(R)
R-CH
RL+
RL–
RF+ 9
RF– 7
2
10
RR+
RR–
3
11
R-CH
SYSTEM CONTROLLER
IC503 (2/3)
: DVD/CD PLAY (AUDIO)
: TUNER (FM/AM)
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: AUX IN
B
A_MUTE
LINE AMP
IC302
5-2. BLOCK DIAGRAM - TUNER/AUDIO Section -
(Page 19)
(Page 19)
Click on the first or last page to see other MEX-DV900 / MEX-DV90EE service manuals if exist.