Sony klv 30xbr900 schematic
KLV-30XBR900
SERVICE MANUAL
SPECIFICATIONS
US Model
Canadian Model
Panel System Liquid Crystal Display panel
Display resolution Display resolution:
Antenna 75 ohm external terminal for VHF/UHF
Television System NTSC, American TV Standard
Channel Coverage VHF 2-13
Power Requirements 120 V, 60 Hz
Inputs/Outputs
DVI-HDTV 1 terminal, 3.3V T.M.D.S., 50 ohms
Video (IN) 3 total (1 on front panel) 1 Vp-p, 75 ohms unbalanced, sync negat ive
S Video (IN) 3 total (1 on front panel) Y: 1 Vp-p, 75 ohms unbalance d, sync nega tive
Audio (IN) 6 total (1 on front panel) 500 mVrms (100% modulation)
Component Video Input 2 (Y, P
CONTROL S (OUT) 1
Variable/Fixed Audio (OUT) 1 More than 408 mVrms at the maximum volume
1280 pixels (horizontal) × 768 pixels (vertica l )
UHF 14-69
CATV 1-125
The DVI-HDTV input terminal is compliant wit h the EIA-861 standard and is not
intended for use with personal com puters.
C: 0.286 Vp-p (Burst signal), 75 ohms
Impedance: 47 kilohm
B
, PR) Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative;
B
: 0.7 Vp-p, 75 ohms
P
R
: 0.7 Vp-p, 75 ohms
P
setting (Variable)
More than 408 mVrms (Fixed)
Impedance (output): 2 kiloh m s
FLAT PANEL COLOR TV
Monitor/Fixed Audio (OUT) ×1
Sub woofer (OUT) 1 phono jack
RF Inputs 2
Converter 1
Screen Size (measured diagonally) 30 inches
Speaker Output 10 w × 2, 4 ohms
Dimensions (W × H × D) Display unit
LDM-3000: 97 1. 2 × 594.4 × 229 mm (38
971.2 × 524.3 × 93.4 mm (38
Media receiver unit
MBT-XBR900L: 430 × 105 × 360 mm (17 × 4
Mass Display unit
LDM-3000: 27 Kg (59 lbs 60ozs) - with stand
20 Kg (44 lbs) - without stand
Media receiver unit
MBT-XBR900L: 7.5 Kg (16 lbs)
Power Consumption In Use Display unit
LDM-3000: 150 W
Media receiver unit
MBT-XBR900L: 36 W
In Standby Under 1.5 W
Supplied Accessories Remote Control (1) RM-927Y
AAA (LR03) Batteries (2)
AC power code (2)
Display interface cable (1)
Antenna cable (1)
Design and specifications are subject to change without notice.
1
/4 × 23 1/2 × 9 1/8 in) - with stand
1
/4 × 20 3/4 × 3 3/4 in) - without stand
1
/4 × 14 1/4 in)
KLV-30XBR900(UC) 2
1.5 k
Ω
0.15 µF
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety
checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes and
bridges.
2. Check the interboard wiring to ensure that no wires are “pinched” or
contact high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and
mounting hardware have been replaced. Be absolutely certain that you
have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors, that
were installed during a previous repair. Point them out to the customer
and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend their
replacement.
6. Check the line cords for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
7. Check the connector shell, metal trim, “metallized” knobs, screws, and
all other exposed metal parts for AC Leakage. Check leakage as described right.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and from all
exposed metal parts to any exposed metal part having a return to chassis,
must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA WT540A. Follow the manufacturers’ instructions to use these instruments.
2. A battery-operated AC milliammeter. The Data Precision 245 digital
multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM or
battery-operated AC voltmeter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low-voltage scale. The Simpson 250
and Sanwa SH-63Trd are examples of a passive VOMs that are suitable.
Nearly all battery operated digital multimeters that have a 2 V AC range
are suitable. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
KLV-30XBR900(UC) 3
WARNING!!
AVERTISSEMENT!!
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES
WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS SUSPECTED.
ATTENTION AUX COMPOSANTS RELATIFS À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET UNE
MARQUE ! SONT CRITIQUES POUR LA SÉCURITÉ. NE LES
REMPLACER QUE PAR UNE PIÈCE PORTANT LE NUMÉRO
SPECIFIÉ. LES RÉGLAGES DE CIRCUIT DONT L’IMPORTANCE EST
CRITIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT
IDENTIFIÉS DANS LE PRÉSENT MANUEL. SUIVRE CES
PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE
COMPOSANTS CRITIQUES, OU LORSQU’UN MAUVAIS
FONCTIONNEMENT EST SUSPECTÉ.
KLV-30XBR900(UC) 4
DIAGNOSIS (Reliability Self Diagnostic Display Specifications for MEDIA RECEIVER)
The abnormal conditions are indicated by the following LED flashes.
Flash Count Error Display Name Error Description Oprating Detection Port
4 Fan Error Error detected for Detects Low when fan IC6200 pin #2
fan box function normally.
Detects High when Fan stops
abnormally
8 Digtal OVP OVP for DD Con- Detects High when normal. IC5210 pin #49
verter on DP board Detects Low when abnormal.
9 Panel Error Panel malfunction Detects during communication
detected with panel.
1) *Operation count is based on WDT.
*For flashes, the Power/Standby LED flashes in red.
*The flash period is based on the reliability standard.
*A failure part can be expected by the number of times of blink of LED.
*When two failures occur, the failure item generated previously is detected.
*When failure occurs simultaneously, an item with little number of times of blink is detected.
*In other than “Fan Error”, the unit is in standby state and blink LED at intervals of regulation.
In “Fan Error”, the unit is in a standby state after display for 1 minute about the message of “Fan problem –
Powering down”
Repair part
• FAN
• FAN CONNECTOR
• SET 11V LINE
• SET 5V LINE
DP board
• Q1612, Q1613, Q1614
Panel Display Unit
• Timing of LED blink (example of 4 times blink)
ON
OFF
every about 0.3s
about 3s
KLV-30XBR900(UC) 5
In the following case, POWER LED of Media Receiver Box blinks at a fixed interval in ORANG E
2)
• When the cable which connects between Media Receiver Box and Panel Display has fallen out.
• When the AC code for Panel Display has fallen out.
In the following case, POWER LED of Panel Display
blinks at a fixed interval in ORANGE
• When the cable which connects between Media Receiver Box and Panel Display has fallen out.
• When the AC code for Media Receiver Box has fallen out.
The example which judges whether it is failure
3)
• POWER LED of Media Receiver Box: Blink 9 times in RED, and of Panel Display blink,
and No picture or Power circuit does not work → Large possibility that Panel Display is out of order.
• When turn on Media Receiver Box, and NO LED of Box shine
→ Large possibility that Media Receiver Box is out of order.
When NO Blue LED of Box shine → Large possibility that Media Receiver Box is out of order.
•
Check SET5V or IIC line on H1 board.
• When turn on Media Receiver Box, and Fan does not work
→ Large possibility that Media Receiver Box is out of order
KLV-30XBR900(UC) 6
TABLE OF CONTENTS
Section Title Page Section Title Page
1. DISASSEMBLY
1-1. Display Unit (LDM-3000)
1-1-1.Stand and Cabinet Removal ........................ 1-1
1-1-2.G and P Boards Removal ............................ 1-2
1-1-3.K Board Removal........................................ 1-3
1-1-4.R1 and R2 Boards Removal ........................ 1-4
1-1-5.Panel Support Assy (LCD Panel)................ 1-5
1-1-6.LCD Panel Removal.................................... 1-6
1-2. Media Receiver Unit (MBT-XBR900L)
1-2-1.Panel and Covers Removal.......................... 1-7
1-2-2.H1 Board Removal ..................................... 1-8
1-2-3.H4 Board Removal...................................... 1-9
1-2-4.H3 Board Removal ..................................... 1-10
1-2-5.MS2 Board Removal................................... 1-11
1-2-12.IFA Board Removal .................................. 1-18
1-2-13.U1 Board Removal.................................... 1-19
1-2-14.U2 Board Removal.................................... 1-20
2. TROUBLESHOOTING
2-1. Display Unit (LDM-3000) .................................... 2-1
2-2. Media Receiver Unit (MBT-XBR900L)............... 2-2
3. DIAGRAMS
3-1. Block Diagrams
3-1-1.Display Unit(LDM-3000) ........................... 3-1
3-1-2.Media Receiver Unit (MBT-XBR900L) .... 3-5
3-2. Frame Diagram ..................................................... 3-14
3-3. Circuit Boards Location
1-2-6.H2 Board Removal ..................................... 1-12
1-2-7.A Board Removal........................................ 1-13
1-2-8.B Block Assy Removal .............................. 1-14
1-2-9.M, AD, and AU Boards Block Removal..... 1-15
1-2-10.AD and AU Boards Removal.................... 1-16
1-2-11.M Board Removal .................................... 1-17
3-3-1.Display Unit(LDM-3000) ........................... 3-15
3-3-2.Media Receiver Unit (MBT-XBR900L) ..... 3-16
3-4. Schematic Diagrams and Printed WiringBoards... 3-17
3-4-1.Display Unit(LDM-3000) ........................... 3-18
(1)Schematic Diagram of G Board ...................... 3-18
(2)Schematic Diagram of K Board ...................... 3-20
KLV-30XBR900(UC) 7
Section Title Page Section Title Page
(3)Schematic Diagram of P Board ....................... 3-22
(4)Schematic Diagrams of R1 amd R2 Boards .... 3-28
3-4-2.Media Receiver Unit (MBT-XBR900L) ............ 3-29
(1)Schematic Diagrams of A Board ..................... 3-29
(2)Schematic Diagrams of AD Board .................. 3-32
(3)Schematic Diagrams of AU Board .................. 3-37
(4)Schematic Diagram of DP Board .................... 3-39
(5)Schematic Diagram of H1Board ..................... 3-41
(6)Schematic Diagram of H2 Board .................... 3-43
(7)Schematic Diagrams of H3 and H4 Boards ..... 3-44
(8)Schematic Diagrams of IFA Board ................. 3-45
(9)Schematic Diagrams of M Board .................... 3-47
(10)Schematic Diagrams of MS2 Boards ............ 3-53
(11)Schematic Diagram of U1 Board .................. 3-55
4. EXPLODED VIEWS .............................................. 4-1
4-1. Display Unit (LDM-3000) ................................... 4-2
4-2. Media Receiver Unit-1 (MBT-XBR900L) .......... 4-4
4-3. Media Receiver Unit-2 (MBT-XBR900L) ........... 4-6
Packing Materials for Display Unit (LDM-3000)
4-4.
... 4-7
4-5. Packing Materials for Media Receiver Unit
(MBT-XBR900L) ............................................... 4-8
5. ELECTRICAL PARTS LIST ............................... 5-1
(12)Schematic Diagram of U2 Board .................. 3-57
(13)Schematic Diagrams of BM1C Board ........... 3-58
(14)Schematic Diagrams of DICA Board ............ 3-61
3-5. Semiconductors..................................................... 3-67
KLV-30XBR900(UC) 8
1-1. DISPLAY UNIT (LDM-3000)
1-1-1. STAND AND CABINET REMOVAL
SECTION 1
DISASSEMBLY
1 Two screws
(+PSW 5X14)
2 Stand assy
3 Three screws
(+BVTP 3X10)
4 Stand cabinet assy
3 Three screws
(+BVTP 3X10)
KLV-30XBR900(UC) 1-1
1-1-2. G AND P BOARDS REMOVAL
4 EMI shield center
1 Six screws
(+BVTT 3X6)
2 EMI shield side
3 Nine screws
(+BVTT 3X6)
7 Four screws
(+BVTT 3X6)
6 G Board
0 P Board
5 Five screws
(+BVTT 3X6)
8 Two screws (HEX)
9 Two screws
GRIP, M2.6 S HEAD (EG)
KLV-30XBR900(UC) 1-2
1-1-3. K BOARD REMOVAL
1 Three screws
(+BVTT 3X6)
1 Three screws
(+BVTT 3X6)
3 Four screws
(+BVTT 3X6)
2 EMI shield side
4 K Board
KLV-30XBR900(UC) 1-3
1-1-4. R1 AND R2 BOARDS REMOVAL
3 Screw
(+BVTT 3X12)
5 Two screws
(+BVTT 3X12)
6 R Board bracket
3 Screws
(+BVTT 3X12)
1 Two screws
(+BVTT 3X12)
2 R Board bracket
7 R2 Board
6 R Board bracket
2 R Board bracket
4 R1 Board
KLV-30XBR900(UC) 1-4
1-1-5. PANEL SUPPORT ASSY (LCD PANEL)
1 Four screws
(+PTP 4X10)
1 Six screws
(+PTP 4X10)
1 Four screws
(+PTP 4X10)
1 Six screws
(+PTP 4X10)
2 Panel support assy
(LCD panel)
KLV-30XBR900(UC) 1-5
1-1-6. LCD PANEL REMOVAL
4 Main arm (R)
3 Two screws
(+PS 4X6)
3 Two screws
(+PS 4X6)
1 Two screws
(+PS 4X6)
1 Two screws
(+PS 4X6)
2 Main arm (L)
5 Panel support assy
6 LCD panel
KLV-30XBR900(UC) 1-6
1-2. MEDIA RECEIVER UNIT (MBT-XBR900L)
!¡Rear panel
6 Bottom cover assy
7Front panel assy
1 Two screws
(+PSW M3X8)
1 Two screws
(+PSW M3X8)
!º Two screws (HEX)
!º Two screws (HEX)
8Four screws (+PSW M3X8)
8Two screws (+PSW M3X8)
9 Two screws GRIP, M2.6 S HEAD(EG)
8 Two screws
(+PSW M3X8)
3 Eight screws
(precision)
3 Four screws
(precision)
5crew
(+PSW M3X8)
5 Screw
(+PSW M3X8)
2 Top cover assy
4 Top chassis assy
1-2-1. PANEL AND COVERS REMOVAL
KLV-30XBR900(UC) 1-7
1-2-2. H1 BOARD REMOVAL
1 Two screws
(+BVTP 3X12)
Front panel
2 H1 Board
1 Two screws
(+BVTP 3X12)
KLV-30XBR900(UC) 1-8
1-2-3. H4 BOARD REMOVAL
1 Two screws
(+BVTP 3X12)
2 H4 Board
Front panel
KLV-30XBR900(UC) 1-9
1-2-4. H3 BOARD REMOVAL
1 Three screws
(+BVTP 3X12)
2 H3 Board
Front panel
KLV-30XBR900(UC) 1-10
1-2-5. MS2 BOARD REMOVAL
1 Two screws
(+BVTP 3X12)
4 MS2 Board
3 Two screws
(+BVTP 3X12)
2 MS bracket
Front panel
KLV-30XBR900(UC) 1-11
1-2-6. H2 BOARD REMOVAL
1 Two screws
(M 3X8),P,SW (+)
2 H2 Board
KLV-30XBR900(UC) 1-12
1-2-7. A BOARD REMOVAL
1 Two screws
(M 3X8),P,SW (+)
2 A Board
1 Two screws
(M 3X8),P,SW (+)
1 Screw
(M 3X8),P,SW (+)
KLV-30XBR900(UC) 1-13
1-2-8. B BLOCK ASSY REMOVAL
1 B Block assy
KLV-30XBR900(UC) 1-14
1-2-9. M, AD, AND AU BOARDS BLOCK REMOVAL
1 Screw
(+PSW M3x8)
2 Shield case
KLV-30XBR900(UC) 1-15
1-2-10.AD AND AU BOARDS REMOVAL
2 AU Board
3 Two screws
(+PSW M3x8)
3 AD Board
1 Two screws
(+PSW M3x8)
3 Four screws
(+PSW M3x8)
Shield upper
Shield main
KLV-30XBR900(UC) 1-16
1-2-11.M BOARD REMOVAL
1 Shield case (upper)
2 Screw
(+PSW M3x8)
3 M Board
Shield case (main)
KLV-30XBR900(UC) 1-17
1-2-12.IFA BOARD REMOVAL
2 Screw
(+PSW M3x8)
1 IF Shield sheet
3 IFA Board
B Block assy
KLV-30XBR900(UC) 1-18
1-2-13.U1 BOARD REMOVAL
1 Four screws
(+BVTP 3x12)
2 U1 Board
3 Core (FPC)
KLV-30XBR900(UC) 1-19
1-2-14.U2 BOARD REMOVAL
2 U2 Board
1 Tow screws
(+BVTP 3x12)
Rear panel
KLV-30XBR900(UC) 1-20
2-1. DISPLAY UNIT (LDM-3000)
SECTION 2
TROUBLESHOOTING
No image
appears.
Abnormal
Box failure
Image erasure
mode
Box LED?
Lights.
LED display
Priming?
P board failure
All is normal.
Lights.
NO: No light
emission
YES: Light emission
Lights.
Blinks alternately.
Panel module
failure
Just after
start?
YES: Not appear at all.
LED display
BOX LED Blinks nine times.
LED display
Blinks six times.
G board failure
Fan or
circuit failure
NO: Appears for a few seconds.
Encrypted authentication
Blinks.
Blinks four times.
Just after
YES
error of box or display
start?
NO
NO
Fan rotation?
YES
Installation
environment?
NG
OK
Temperature sensor
Check of cable
connection
or circuit failure
Environment
improvement
KLV-30XBR900(UC) 2-1
2-2. MEDIA RECEIVER UNIT (MBT-XBR900L)
(IC5002) on M
Sound not output
from speaker
No sound from Both
speakers for all input
YES
"MONITOR OUT"
output ?
YES
"SUBWOOFER"
output ?
YES
Display Signal Out
(Black) 26pin output?
YES
Possibility
•
Cable defect
•
Panel failure
Note)
If the condition of small or no sound occurs for only one speaker,
perform the balance adjustment beforehand as follows:
MENU → AUDIO→BALANCE → ADJUST
NO
NO
•
Check CXA2069Qs
(IC4001, IC4303) on AD
NO
(try to turn up volume)
(make sure the input signal
is under 200Hz)
•
NJW1149
NO
(DC signal only)
•
Check AK4114
(IC4703) on AU
•
(IC5003) on M
•
Check
SN65LVDS1050
(IC5101) on M
Check input of
Check AK4524
No sound from one
speaker for all input
YES
"SURROUND" ON
output?
YES
•
Check CXA2069Q
(IC4001, IC4303) on AD
•
Check input of
NJW1149
(IC4703) on AU
NO
Check the source of input signal whichsound does not
come.
•
Check TUNER
•
Check INPUT TERMINAL
•
Check CXA2069Q
(IC4001, IC4303) on AD
NO
•
Check output of NJW1149
(IC4703) on AU
•
Check output of AK4524
(IC5002) on M
•
Panel failure
• Check of AK4524 (IC5002) on M
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 3pins) and the outputs( 25 through 28pins). The
outputs of these terminals change depending on the volume adjustments.
•
Check of AK4114 (IC5003) on M
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 (Black) 26pin
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 Diplay Signal Out terminals are connected to the Display unit via display interface cable,
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 diplay unit.
KLV-30XBR900(UC) 2-2
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