Sony MEX-R1 Service Manual ▷ View online
17
17
MEX-R1
SECTION 4
ELECTRICAL ADJUSTMENTS
SERVO SECTION
If any of the following parts was replaced, perform the “IOP Check”
and “E, F Signal Offset Adjustment” as mentioned below.
and “E, F Signal Offset Adjustment” as mentioned below.
•
Optical pick-up block (chassis (OP-DVD) complete
assy or chassis (OP-DVD) sub assy)
assy or chassis (OP-DVD) sub assy)
•
Mounted SERVO board
•
SERVO board: IC4
R29, R30, R40, R41, R43, R44
R53, R54, R57, R58, R65, R69
RV1, RV2
R53, R54, R57, R58, R65, R69
RV1, RV2
Precaution
Use the following tools and measuring devices.
•
Extension jig (Part No.: J-2502-094-1) between the SERVO
board and the MAIN board
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)
•
Digital voltmeter
•
Oscilloscope
•
Accessory remote commander
RM-X702 (except AEP and UK, Russian models)
RM-X703 (AEP and UK, Russian models)
RM-X702 (except AEP and UK, Russian models)
RM-X703 (AEP and UK, Russian 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 TP (IOPDVD) and TP (A5V)
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 16.5, 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 TP (IOPCD) and TP (A5V) 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 16.5, 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 TP (E) and TP (AGND) on the
SERVO board.
2. In the standby status, press the [4] key of the remote
commander.
3. Press the [5] key of the remote commander.
4. Press the [7] key of the remote commander for more than two
4. Press the [7] key of the remote commander for more than two
seconds.
5. When the test mode is selected, a peep sound is generated and
the LCD display becomes 6-digit hexadecimal number
indication.
indication.
(*1)
6. Playback the CD test disc (PATD-012).
7. Press the
7. Press the
P
key of the remote commander.
8. Adjust the RV2 on the SERVO board so that waveform level
of oscilloscope becomes between 2.75 and 2.80 V as follows.
9. Connect an oscilloscope to TP (F) and TP (AGND) on the
SERVO board.
10. Adjust the RV1 on the SERVO board so that waveform level
of oscilloscope becomes between 2.75 and 2.80 V as follows.
11. Press the [RESET] button on the MAIN board, release the test
mode.
*1)
In the TEST mode, if any abnormality occurred in the operation, for
instance, by pressing a wrong key, press the [RESET] button on the
MAIN board to reset the operation once, and then retry the operation.
instance, by pressing a wrong key, press the [RESET] button on the
MAIN board to reset the operation once, and then retry the operation.
Adjustments Location:
SERVO board
TP (IOPDVD), TP (IOPCD)
TP (A5V)
+
–
–
digital voltmeter
DVD IOP value
CD IOP value
Optical Pick-up Label:
KHS-340B
*******
$$$###
SERVO board
TP (E), TP (F)
TP (AGND)
+
–
–
oscilloscope
(DC range)
0 V
level: 2.75 to 2.80 Vp-p
E Signal Waveform:
level: 2.75 to 2.80 Vp-p
F Signal Waveform:
0 V
TP (E)
TP (IOPCD)
TP (IOPDVD)
TP (AGND)
TP (A5V)
TP (F)
RV1
F Signal Offset Adjustment
RV2
E Signal Offset Adjustment
– SERVO Board (Side B) –
Ver. 1.5
MEX-R1
18
18
MEX-R1
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM – SERVO Section –
AUTOMATIC POWER
CONTROL (FOR DVD)
Q1
DIFFERENCIAL
AMP
IC303
RV2
A +5V
COMPARATOR
IC4 (1/2)
DVD
ANALOG FRONT-END
IC1
DVD PROCESSOR
IC6
SD-RAM
IC7
FLASH MEMORY
IC10
OPTICAL PICK-UP BLOCK
KHS-340B
RFP
TRN
57
DQ0 – DQ15
MD0 – MD15
DATA
2
TRP
58
RFIP
2
MBA0
77
BA0
20
AMUTE
AMUTE
RESET
142
RTS 195
CTS 196
TXD 197
RXD
RTS
CTS
TXD
RXD
198
OUTL 7
RFAC 11
IN1 42
IN2 43
PA0 129
SPDIFOUT0 203
DOWNMIX 202
SCK
16
DACCLK 206
LRCK
3
LRCLK 205
BCK
1
DOCLK 207
MD
13
MD 143
MC
14
MC 144
ML
15
ML 145
VCOM 10
OUTR
R-CH
8
ZEROR 11
RF AC
14
PE 38
PI
32
FE 39
FE
29
TE 36
TE
30
TEIN 33
TZC
13
SIGM 35
AMPMNT
33
SDATA 30
SDT
7
SCLK 29
SCK
8
SDEN 31
SEN
6
DFT 26
DEFCT
10
MIRR 25
MIRR
9
XRST 28
RF_RST
214
RFN
RFIN
1
A
MA
54
B
MB
53
C
MC
52
D
MD
51
LD DVD
E
LDDVD
44
PDDVD
43
• SIGNAL PATH
: DVD/CD (AUDIO)
: DVD/CD (VIDEO)
: OPTICAL OUTPUT
• R-ch is omitted due to same as L-ch.
VIN
4
VSAG 30
A +5V
COMPARATOR
IC4 (2/2)
DVD ON SWITCH
Q4
F
AUTOMATIC POWER
CONTROL (FOR CD)
Q5
LD CD
DIGITAL
OUTPUT
OUTPUT
D/A CONVERTER
IC302
CN601
1
PD
LDCD
41
PDCD
40
VC
VC
GAIN SW
VREF
46
FCS+
VO1+
35
GAINSW
210
LIMIT SWITCH
LMT_SW
47
MODE SW
CD/DVD
215
RESET SIGNAL
GENERATOR
IC3
VR DVD
CD ON SWITCH
Q3
COMPARATOR
IC11
COIL/MOTOR DRIVE
IC2
Q2
VR CD
FCS–
VO1–
34
TRK+
VO2–
31
TRK–
VO2+
32
IN3 44
IN4 45
INSP 46
FG 47
STBY 24
SLED MOTOR A+
VO3+
29
SLED MOTOR A–
VO3–
28
SLED MOTOR B+
VO4+
26
SLED MOTOR B–
VO4–
25
SPWM1
3
STA
40
STB
38
TSCON
41
SE
31
FSCON
39
FG
D +1.5V
5
COIL U
U1
10
U2
11
COIL V
V1
6
V2
7
COIL W
W1
2
W2
3
HALL U+ (H1+)
HU+
14
HALL U– (H1–)
HU–
15
HALL V+ (H2+)
HV+
16
HALL V– (H2–)
HV–
17
HALL W+ (H3+)
HW+
18
HALL W– (H3–)
HW–
19
HALL_BAIS–
HB
13
MBA1
75
BA1
21
MCLK
85
CLK
38
DCS
81
CS
19
RAS
83
RAS
18
CAS
84
CAS
17
DWE
86
WE
16
DQMU
87
DQMH
39
DQML
88
DQML
15
MUTE1
3
MUTE2
MUTE1
MUTE2
15
WS
180
WE
11
SPWM2
4
FRONT
VIDEO OUT
CN301 (1/3)
15
CYIN
VIDEO SELECT,
75 OHM DRIVER
IC701
12
CYOUT 25
REAR
VIDEO OUT
CN701 (1/2)
5
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
A0 – A11
22 – 26,
29 – 35
89 – 92, 95 – 98,
101 – 108
MA0 – MA11
63 – 68,
71 – 74, 76, 78
HADR10 – HADR31
148 – 158, 170,
172 – 179, 181, 182
DQ7 – DQ0
167 – 164,
162 – 159
HDATA0 – HDATA7
44, 42, 40, 38,
35, 33, 31, 29
A0 – A16,
DQ15_A-1
1 – 10,
16 – 25, 48, 45
RS
168
OE
28
WP
169
WP_ACC
14
RESET
125
RST
12
DVD-L
B
Z_MUTE
C
MUTE1,
MUTE2
A
D
F
E
X1
36.864MHz
56
55
XI
XO
E SIGNAL
RV1
F SIGNAL
(Page 19)
(Page 19)
(Page 19)
(Page 19)
(Page 20)
(Page 19)
MEX-R1
19
19
MEX-R1
FRONT LCH
FRONT RCH
5
1
3
REAR LCH
REAR RCH
9
7
SUB
(SUB OUT (MONO))
BUZZER DRIVE
Q801
BZ801
GND SWITCH
Q301
MUTING CONTROL
Q309, 310
MUTING
Q311
GAIN CONTROL
IC304
INPUT SELECT,
ELECTRICAL VOLUME
IC301
NS DET DISCHARGE
SWITCH
Q202
EEPROM
IC504
FM/AM TUNER PACK
TUX201
J201
(ANTENNA IN)
RDS DECODER
IC201
SYSTEM CONTROLLER
IC501 (1/2)
R-CH
R-CH
MD L
42
PDL+
4
AML
40
IN2B
7
IN1B
DVD-L
6
SDA
12
SCL
SDA
SCL
SADATA
SACLK
G_DOWN
REAR ATT
MUTE_SEL
ATT
VMUTE
13
SAOUT
16
SAIN
14
MUTE
15
CNT1
2
13
11
CN301
(2/3)
12
AUX L
AUX LGND
AUX R
14
AUX RGND
L 4
R 3
TU_SDA 14
TU_SCL 13
S_METER 6
TU_MUTE 7
MUTE-CONDITION 8
E2P_SDA 17
E2P_SCL 16
QUALITY 5
RDS
SDA
BUS_AUX
SCL
VSM
TU MUTE
MUTE CON
TRDA
TRCL
DAVN
QUALITY
9
MPX 16
SDA 9
SCL 10
DAVN 8
OUTLF 25
OUTLR 24
OUTSW 17
OUTB 11
R-CH
R-CH
CN301 (3/3)
R-CH
3
1
(L)
(R)
CN701 (2/2)
R-CH
FL+
FL–
4
1
9
FR+
FR–
2
12
RL+
CN801 (2/2)
POWER AMP
IC306 (1/2)
RL–
RR+
11
10
3
RR–
R-CH
R-CH
MUTING CONTROL
Q307, 308
MUTING
Q302
MUTING
Q304
MUTING
Q306
SWITCHING
IC305
B
AMUTE
F
• SIGNAL PATH
: TUNER
: DVD/CD (AUDIO)
: AUX IN
• R-ch is omitted due to same as L-ch.
RL IN
11
FL IN
12
DIAG
22
BEEP
5
STB
DIAG
STB
23
EESIO
1
EECKO
2
DAVN
51
NSMASK
4
QUALITY
41
VSM
39
TUNATT
3
TUN_ATTIN
50
I2CSIO
32
I2CCKO
31
SA_CLK
30
SA_IN
44
VOLATT
15
G_DOWN
TRDA
TRCL
DAVN
QUALITY
VSM
TU MUTE
MUTE CON
SDA
SCL
SDA
SCL
SACLK
SADATA
VMUTE
G_DOWN
28
REAR ATT
16
MUTE_SEL
11
ATT
REAR ATT
MUTE_SEL
ATT
14
SDA
2
SCL
4
STB
22
DIAG
SDA
SCL
STB
DIAG
25
RL– 7
RL+ 9
FL– 3
FL+ 5
SDA
SCL
4
5
X201
4.332MHz
OSCO
OSCI
1 ANT
BUS_AUX
10
BUS_AUX
ZxZ REAR
AUDIO OUT
R-CH
RESET
D
CD_RST 70
Z_MUTE
C
Z_MUTE 53
A
VMUTE_F 13
VMUTE_R
MUTE1
MUTE2
12
FRONT AUDIO
OUT
REAR AUDIO
OUT
BUS AUDIO IN
(AUX IN)
(AEP, UK, Russian)
(AEP, UK, Russian)
5-2. BLOCK DIAGRAM – AUDIO Section –
(Page 18)
(Page 18)
(Page 18)
(Page 18)
(Page 18)
Ver. 1.1
MEX-R1
20
20
MEX-R1
12
CN401
S961
(PANEL OPEN DETECT)
12
CN901
ACC
ILL
13
7
14
TEL-MUTE
AMP-R
AMT-R
5
6
+B
19
15
PARCKING
LEVEL SHIFT
IC506
LOADING MOTOR
DRIVE
IC102
+6V
REGULATOR
IC103
KEY ACTIVE
SWITCH
Q501
LIQUID
CRYSTAL
DISPLAY
LCD911
LCD DRIVER
IC901
REGULATOR
IC306 (2/2)
SYSTEM CONTROLLER
IC501 (2/2)
CN801 (2/2)
KEYIN1
37
LCDSO
17
LCDCKO
18
LCDCE
19
NC1
COM1 – COM4
S1 – S62
2
NC2
29
1
REG1
30
DISPLAY B+
LED931, LED932
(LCD BACK LIGHT)
LED961, LSW901
(DISC SLOT ILLUMINATION)
Q925
LED
CONTROL
DI 78
CL 77
CE 76
CE 76
RSTX 75
VP 35
SW2
TU +5V
DAC +5V
AUDIO +8.3V,
TU +8.3V
27
SW1 29
+5V
REGULATOR
IC801
+5V
REGULATOR
Q201
REG4
33
A +3.3V
D +1.5V
DR +5V,
A +5V
+1.5V
REGULATOR
IC101
+3.3V
REGULATOR
IC8
V +3.3V
BU B+
D604
TH601
A +1.5V
+1.5V
REGULATOR
IC5
+3.3V
REGULATOR
IC9
BATTERY
DETECT
Q604
REG2
37
REG5
34
BU +3V
D502
B/U +5V
DISPLAY B+
BU B+,
BUS B+,
M901
(FAN)
(FAN)
LED902, LED914 – LED918
LED961, LSW901,
LSW903 – LSW913,
LSW918 – LSW921
(ILLUMINATION)
REG3
31
D+3.3V
+3V
REGULATOR
IC503
FAN MOTOR
DRIVE
Q902, 903
FAN SPEED
CONTROL
Q901
ACCESSORY
CHECK
Q802
ILLUMINATION
CHECK
Q804
RESET SIGNAL
GENERATOR
IC502
TEMP
TH501
43
RUMBU 76
FANL 97
ACCIN 55
ILLIN 85
TELLATT 84
PARKING 42
FANH 6
D501
D101
D102
S501
RESET
M
M
LEVEL SHIFT
Q803
SONY BUS INTERFACE
(FOR SONY BUS)
IC603
UNISO 57
DATA IN
9
UNISI 56
DATA OUT
8
DATA
6
UNICLK 58
CLK IN
11
CLK
4
BUSON 59
BUS ON
12
BUS ON
1
SYSRST 60
RESET
13
RST
2
BU_IN 46
BU_IN
10
BATT
3
4
5
2
B-DATA
RESET
B-CLK
6
BUS-ON
7
+BATT
CN602
BUS CONTROL IN
3 – 28,
30 – 64, 69
65 – 68
KEYIN0
36
NOSE SW
99
TXD
26
LEVEL SHIFT
IC505
RXD
25
CD_CTS
69
CD_RTS
RXD
RXD, TXD,
CTS, RTS
CTS, RTS
TXD
CTS
RTS
68
IR RECEIVER
IC972
INSW
SW3
(DISC IN)
63
LOAD
72
SIRCS
62
DOOR SW
100
RCIN1
83
RCIN0
38
AD_ON
52
KEY-ACK
45
EJECT
73
BU B+
VCC
CNJ601
S902, S914 – S918
LSW901, LSW903 – LSW913,
LSW918 – LSW921
REMOTE IN
X502
32.768kHz
78
77
X0A
X1A
80
81
X501
3.68MHz
X0
X1
SELFSW
SW2
(SELF LOAD)
M3
(LOADING)
54
DSW
SW3
(DOWN)
(CHUCKING END)
65
M
M
E
5-3. BLOCK DIAGRAM – MAIN Section –
(Page 18)
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