Sony KLV-MR30M1 Service Manual ▷ View online
KLV-MR30M1 (CH) 3-1
SECTION 3
TROUBLESHOOTING
No image
appears.
LED display
Panel module
failure
Blinks six times.
Blinks four times.
G board failure
Temperature sensor
or circuit failure
Just after
start?
YES
NO
Installation
environment?
OK
NG
Fan rotation?
YES
NO
Fan or
circuit failure
Environment
improvement
Blinks.
Just after
start?
YES: Not appear at all.
NO: Appears for a few seconds.
LED display
Lights.
BOX LED
Blinks nine times.
Encrypted authentication
error of box or display
All is normal.
Box LED?
LED display
Lights.
Image erasure
mode
Box failure
Abnormal
Lights.
Priming?
YES: Light emission
NO: No light
emission
P board failure
Check of cable
connection
3-1. DISPLAY UNIT(LDM-3000)
KLV-MR30M1 (CH) 3-2E
YES
OK
OK
OK
NG
YES
OK
NG
NO
NO
YES
NO
Sound not output
from display unit
No sound from both channels
for all input sources
Audio Output terminal
Subwoofer terminal
Display Signal Out
terminal (Black)
Probable cause
•
Cable defect
•
Defect of display unit
Check two CXA2069Q's
•
Center Speaker
Check switch circuit
•
Check input of NJW1149
•
Check AK4524
•
Check AK4114
•
Check SN65LVDS1050
NG
(Try to turn up volume)
(Check frequency component)
NG
(DC only)
No sound from only one
channel for all input sources
Surround-sound system turning on
•
Check output of NJW1149
•
Check AK4524 (Analog input)
•
Possibility of display unit defect
No sound for BS reception only
•
Check input of NJW1149
•
Check IF board
•
Check B block
Determine signal source of
defective input
•
Check ground wave tuner
•
Check external input terminal
•
Check two CXA2069Q's
Check of AK4524
No problem when around 3MHz of rectangular wave (3.3Vpp) is output from the 13-pin SDTO. (The rectangular wave
changes depending on the audio signal.)
For the analog system, check the inputs (2 and 3 pins) and the outputs (25 through 28 pins). The outputs of these
terminals change depending on the volume adjustments.
Check of AK4114
No problem when around 3MHz of rectangular wave (3.3Vpp) is output for the JL5003[SPDIF]. (The rectangular wave
changes depending on the audio signal.)
Check that 48KHz of rectangular wave (3.3Vpp) is supplied to the 24-pin LRCK. (Supply source: AK4524)
Check that 3.072MHz of rectangular wave (3.3Vpp) is supplied to the 26-pin BICK. (Supply source: AK4524)
Check of Display Signal Out terminals (Black)
The output signal level is about 3.3Vpp when the Display Signal Out terminals are not connected to the display unit.
If the signals, SPDIF+/- and UART_O+/-, are output, no problem for the sending end.
(When the Display Signal Out terminals are connected to the display unit, the signal level is about 350mVpp since the
signal is terminated at display unit.)
For receiving ends (SIRCS input and UART input), the check can only be performed when the Display Signal Out
terminals are connected to the display unit.
Note:
When the insertion of the headphone terminal is detected, the display unit and the woofer
terminal do not output the sound.
In this condition, when the volume operation is performed, the headphone icon is
displayed.
If the condition of small or no sound occurs for only one channel, perform the balance
adjustment beforehand:
Select [AUDIO ADJ.] and [BALANCE] in order from the menu display for each input
source.
•
Check two CXA2069Q's
•
Check input of NJW1149
3-2. MEDIA RECEIVER UNIT(MBT-MRL1C)
KLV-MR30M1 (CH) 4-1
4-1. BLOCK DIAGRAMS
SECTION 4
DIAGRAMS
P(1/2)
(PANEL CPU)
CN3102
SPDIF-
SPDIF+
SIRCS-
SIRCS+
UART_O+
UART_O-
UART_I+
UART_I-
MD 1
A13
A11
A10
A8
A6
A4
A3
A1
B6
B7
POWER ON
STATUS
B3
B5
D3111-D3114
OVER VOLTAGE
PROTECTOR
LVD RXTX
15
3
1
4
IC3101
2
13
14
10
11
6
7
12
9
5
DE
RE
3.2V
REG
5V-4
6
5
SPDIF
SIRCS
TXD 0
RXD 0
PD LVDS
RXD 1
TXD 1
B8
B9
RESET
B11
JIG
A7
CABLE DET
IC3109
10
4B
9
3B
1A
1
2B
3
8
11
4
3A
4A
2A
1B
2
5
, ,
6
,
12 13
RXD1
RES
7
TXD1
MD1
TO 2/2
1
DET
5
3
VOLTAGE
7
IC3108
DET
Q3102
CLOCK-
23
CLOCK+
16
14
+5V POWER
HOT PLUG DET
24
7
6
2
1
DDC SDA
DDC SCL
DATA 2+
DATA 2-
CN3101
DATA 1+
DATA 1-
9
10
DATA 0+
DATA 0-
17
18
TO
MEDIA RECEIVER
UNIT
D3104-3107
OVER VOLTAGE
PROTECTOR
IC3102
6
IIC
2
7
BUFF
3
3.3V
5V-4
Q3109,3110
5V 3.3V
Q3104
5
6
EEPROM
IC3106
IC3105
14
12
3
13
15
11
9
10
2
4
5
1
A
B
7
SDA
SCL
WC
DE 46
VSYNC 47
HSYNC 48
ODCK 44
92 DDC SCL
93 DDC SDA
95 PROM SCL
TMDS RECEIVER
IC3107
10-17
QE0-7
20-27
QE8-15
QE16-23
30-37
TO 2/2
TO 2/2
TO 2/2
9
SDA2
SCL2
SEL0
SEL1
WP
Q3108
10 TO 2/2
PROM SDA
96
90 RXC-
89 RXC+
RX0-
87
RX0+
86
RX1-
84
RX1+
83
80 RX2+
81 RX2-
42
RSVD
41
CTL2
8
SCDT
2
PD
OUDQM 134
OLDQM 136
OCAS 133
ORAS 132
CLK33
11
OSC33
14
5
ICBLK
2
CLX
9
ICSDA
8
ICSCL
ITVSYNC
168
ITDE
169
170 ITCTL3
IC3401
LCD DRIVER
ITCTL1
172
ITCTL2
171
ITSCDT
173
53
6VS
127
CLK RAM
129
OCKE
135
OWE
174,175
178-182,
184
191-194
185-188,
195-199,
202-204
X3401
33MHz
121 CLKI00
100MHz
OSC
X3402
3
VCO
PFD
PFD
VCO
9
6
10
5
FIN
12
VCO
SEL
2
FIN
4
IC3301 PLL
IN
INH
OUT
INH
A
B
OUT
CLK
30
CLKTMDS
166
CLK SEL
25
APLL
23
BPLL
21
IC3302
4
2
Q3303
TO 2/2
15
167 ITHSYNC
SCL1
SDA1
MUTE
CLR
2
14
TO 2/2
TO 2/2
DEI
CTL3
CTL2
SCDT
PD TMDS
VSI(VSO V6)
12
13
4
TO 2/2
HSI
VSI(VSO V6)
FIELD BOLT
ITQE
16-23
8-15
ITQE
0-7
ITQE
OBLU
0-7
O6GRN
0-7
0-7
O6RED
62-66
56,58,
75-78,
80-83
98,99
87-92,
6HS 55
DE 54
OCLK 51
RI0-RI7
GI0-GI7
BI0-BI7
128
OCS
100-104,
115
156-161
141,
108-113,
149-153,
143-146,
1-16
DQ
0-11
A
27-32
19-24,
CS
18
WE
15
CKE
34
CLK
35
17 RAS
16 CAS
14 LDQM
36 UDQM
5,6,
8,9,
2,3,
48,49
45,46,
42,43,
39,40,
11,12,
D
0-15
A
0-11
DQ1-16
A0-11
DRAM
IC3402
54-56
50-52,
2,3,
4,
6-8,
14
15,16
18-20,
22-24
10-12,
30
27
28
RO0-7
GO0-7
BO0-7
VSO
HSO
DEO
CLKO
31
TTL PARALLEL
TO
LVDS
TD0,1
TA0-5
TB0-4
TA6,
TC0-3
TB5,6,
TD4,5,
TD2,3,
TC5
TC4
TC6
PLL
CLK IN
32 PDWN
PD
40
41
42
45
48
47
46
39
37
38
TA-
TA+
TB-
TB+
TC-
TC+
TCLK-
TCLK+
TD-
TD+
9
10
11
12
13
14
15
16
17
18
TD+
TD-
TCLK+
TCLK-
TC+
TC-
TB+
TB-
TA+
TA-
CN3504
LDVS TRANSMITTER
IC3501
UNIT
MEDIA RECEIVER
TO
STATUS
P SW
TO 2/2
11
Q3101
Q3111
RES
Q3112
TO
IC3105,
3106,
3107
8
TO 2/2
TMDS ON
Q3113
+3.3V
+3.3V
PD
PLL CLK ON
1
UNIT
LCD
TO
4-1-1. DISPLAY UNIT(LDM-3000)
KLV-MR30M1 (CH) 4-2
P(2/2)
(PANEL CPU)
10
8
7
5
2
1
INV FAIL
THERMO G
POWER ON
STBY 6.5V
24V
24V
CN8001
CN3503
BR ON
BRTC
INV FAIL
5
3
1
1
3
5
INV FAIL
BRTC
BR ON
CN3502
CN3201
SPDIF
SDA2
SCL2
MUTE
RES
3
6
7
9
10
CN3202
SIRCS
MUTE
TIMER 2
TIMER 1
POWER
STBY
2
4
5
6
7
8
9
SAVING
1
7
IC8005
DET
VOLTAGE
RESET
GEN
IC8007
4
5
+12V
REG
+3.3V
REG
+5V
REG
+5V
REG
5V-4
24DET
IC8003
IC8004
IC8006
IC8001
Q3501,3502,3503
12V
5V
5V-4
3.3V
G PROT
LCD12 ON
IC3203
PANEL MCU
57
55
58
37
59
74
60
15
TO 1/2
POWER ON
BR ON
G PROT
LCD12 ON
24 DET
THERMO G
34
63
64
61
62
65
66
Q3201
3.3V 5V
6
TO 1/2
SPDIF
SIRCS
SDA2
SCL2
TO 1/2
9
70
69
68
71
67
72
SDA2_0
SCL2_0
SDA2/1
SXL2_1
AU MUTE
AU RES
LED MUTE
LED TIMER 2
LED TIMER 1
LED POWER
LED STBY
SAVING
LED LOGO
46
14.7456MHz
X3201
3
EXTAL
2
XTAL
1
RESET
5
4
RESET
IC3202
5V-4
TXD1
78
RXD1
79
MD1
4
CABLE DET
20
IC3210
2
1
4
RES
TXD1
RXD1
MD1
DET
RES
6
5
7
SCL
SDA
WP
EEPROM
IC3204
Q3205
Q3204
RES
5V-4
48 SDA1 1
49 SCL1 1
51 SCL1 0
42 WP1
50 SDA1 0
3.3V
CLR
Q3214
Q3213
3.3V 5V
Q3203
1
2
SENSOR
TEMPERATURE
IC3211
SCL
SDA
6
5
CN3206
SCL B
SDA B
4
3
CN3209
14 TO 1/2
SCL1
SDA1
36
35
44
DRV
FAN VCC
FAN ERR
ALARM 28
VSYNC 27
SCDT 14
RXDO 10
WAKEUP 19
C STATUS
9
TXDO 11
PD2 21
13
PD
15
CLR
16
MUTE
17
CLK SEL
26
WC
25
SEL 1
24
SEL 0
22
75
PLLCLK ON
TMDSON 52
1
4
IC3212
BUFF
2
FAN DRIVE
3
1
IC3209
VIN
CONT
VOUT
12V
2
1
FNA1
DRV
CN3207
2
1
FAN2
DRV
CN3208
D3204
18
8
6
3
12
2
17
14
IC3205
9
7
15
13
11
5
5V 3.3V
INV FAIL
VSI(VSO V6)
SCDT
P SW
RXD0
FIELD BOX
STATUS
PD LVDS
TXD0
5V 3.3V
11
13
12
9
8
7
IC3206
16
17
2
15
3
4
5
18
SEL0
SEL1
WP
TMDS ON
10
8
TO 1/2
TO 1/2
CLK SEL
MUTE
CLR
PD TMDS
FIELD BOLT
PLLCLK ON
PD
(NC)
2
4
TO 1/2
TO 1/2
TO 1/2
5
11 TO 1/2
12 TO 1/2
13 TO 1/2
7
TO 1/2
IC3201
2
1
6
5
7
3
D3210
11
10
9
8
7
6
5
4
3
2
1
CN3001
+3.3V
GND
SPDIF
GND
+12V
SDA2
SCL2
GND
MUTE
RES
GND
5
4
3
2
1
CN3003
AUDIO_VCC
AUDIO_VCC
GND
GND
GND
IC3001
S/PDIF RECEIVER
RX1
XTO
XTI
SDA
SCL
PDN
MCKO2
BICK
SDTO
LRCK
INT1
X3001
24.576MHz
3.3V
12V
PWM DIGITAL AUDIO PROCESSOR
IC3002
MCLK_IN
SCLK
SDIN
LRCLK
RESET
PWM-AP_L
PWM-AM_L
PWM-AP_R
PWM-AM_R
VALID_L
MUTE
44
29
30
33
34
31
IC3003
AUDIO AMP
PWM-AP
PWM-AM
PWM-BP
PWM-BM
PWDN
RESET
OUTPVTA
OUTPVTA
OUTPVTB
OUTPVTB
AND
IC3004
2B
1B
1A
2Y
Q3004-3007
NF
Q3002
VCC REG.
3.3V
4
3
2
1
R+
R-
L-
L+
CN3002
Q3003
SW
SW
Q3001
27
26
25
24
37
1
17
19
18
35
34
29
28
23
38
1
2
16
15
13
14
26
27
22
23
5
2
1
6
PVDDA2
PVDDB2
PVDDA1
PVDDA1
PVDDB1
PVDDB1
1B
1B
1B
1B
4
3
2
1
SCL B
SDA B
GND
3.3V
CN3201
AND
IC3201
L
R
SPEAKER
F3003
L3006
F3001
F3002
L
TO G BOARD
CN6302
K
(AUDIO OUT)
10
9
8
7
6
5
4
3
2
1
CN701
STBY5V
SIRCS
GND
MUTE
TIMER 2
TIMER 1
POWER
STBY
SAVING
GND
OUT
VCC
IC701
SIRCS
STBY 5V
STBY 5V
LED SW
Q701-706
D701
POWER
TIMER
D703
MUTE
D705
(SIRCS,LED)
R1
4
3
2
1
CN751
STBY5V
LOGO
NC
GND
Q751-754
LED SW
D751
|
D754
R2
(LED)
CN6303
TO G BOARD
M
TO
LCD UNIT
BOARD
BOARD
LCD UNIT
TO
4
3
2
1
GND
NC
LOGO
STBY5V
CN3204
TO
FAN
FAN
TO
7
32
17
28
29
20
21
7
8
1
2
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