Sony JumboTron LDU-1530S User manual

.............. ......... ....................
SERVICE MANUAL
LED Jumbo Tron Display Unit
LDU-1530S World
LDU-1530L World
LDU-1540S World
LDU-1540L World
.............. ......... ....................
MODEL DEST. CHASSIS NO.
REVISED-3
LDU-1515 World
............... MODEL DEST. CHASSIS NO.

!WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
!WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien.Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.
WARNING!!
AN INSULATED TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OFTHIS RECEIVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTSIDENTIFIEDBYA !MARKONTHESCHEMATIC
DIAGRAMS, EXPLODEDVIEWS AND INTHE PARTS LIST ARE
CRITICAL TO SAFE OPERATION. REPLACE THESE COMPO-
NENTSWITH SONY PARTSWHOSE PART NUMBERS APPEAR
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION!!
AFIN D’ÉVITER TOUT RISQUE D’ÉLECTROCUTION
PROVENANT D’UN CHÂSSIS SOUS TENSION, UN
TRANSFORMATEUR D’ISOLEMENT DOITETRE UTILISÉ LORS
DETOUT DÉPANNAGE.
LE CHÂSSIS DE CE RÉCEPTEUR EST DIRECTEMENT
RACCORDÉ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MAPQUE !SUR
LES SCHÉMAS DE PRINCIPE,LESVUES EXPLOSÉES ET LES
LISTES DE PIECES SONT D’UNE IMPORTANCE CRITIQUE
POUR LA SÉCURITÉ DU FONCTIONNEMENT. NE LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMÉRODEPIÈCEESTINDIQUÉDANSLEPRÉSENTMANUEL
OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY.
CAUTION
1.
2.
To Avoid Unit from Dropping
Allways attach the wire to the unit before installation or removal
to avoid injury by accidental drop of the unit.
Do Not Look LED Light Straight
Looking LED light straight in close distance, when LED is ON,
strong light may be harmful to your eyes.

1 (E)
LDU-1530/1540/1515
Display element: Full color LED cell x 16 (1530L, 1530S, 1540L, 1540S)
C board x 4 (1515)
Maximum brightness: 3000 cd/m2(1530L, 1530S)
4000 cd/m2(1540L, 1540S)
1500 cd/m2(1515)
Color temperature: 7000 K (1/2 brightness)
Uneven brightness: ±3% or less (front, between pixels)
Pixel pitch: 15 mm x15 mm
Visible distance: 7.6 m or more
Angle of visibility: Horizontal +60 d
Vertical : Refer to the following table.
Operating temperature: 0 dC to +45 dC (1530L, 1530S, 1540L, 1540S)
0 dC to +40 dC : (1515)
Storage temperature: _20 dC to +60 dC (1530L, 1530S, 1540L, 1540S)
_10 dC to +50 dC : (1515)
Humidity: 90% or less (no condensation)
Drip-proof: Surface drip-proof structure (equivalent to JIS Grade 5)
(except to 1515)
Power supply voltage, frequency: AC100 ~ 240 V ±10%, 50/60 Hz
Power consumption: Maximum 100 W
Signal input: 15-pin connector
Power supply input: 3-pin inlet
Dimensions: 239 x 239 x 153 mm (H x W x D) : (1530S, 1540S)
239 x 239 x 158 mm (H x W x D) : (1530L, 1540L)
239.5 x 239.5 x 146 mm (H x W x D) : (1515)
Weight: 3.0 kg
2.8 kg (1515)
Units and cells
Louver length Brightness Visible angle Remarks
(mm) (cd/m2) (H/V)
u: 25 dIndoor use
LDU-1530S 7 3000 120 d/d: 50dWide visible angle
Equipped in vehical
LDU-1530L 12 3000 120 d/u: 15 dOutdoor use
d: 40 dEquipped in vehical
u: 25 dIndoor use
LDU-1540S 7 4000 120 d/d: 50dWide visible angle
(OLD) Equipped in vehical
LDU-1540L 12 4000 120 d/u: 15 dOutdoor use
(OLD) d: 40 dEquipped in vehical
u: 45 dIndoor use
LDU-1540S 4 4000 120 d/d: 55dWide visible angle
(NEW) Equipped in vehical
LDU-1540L 7 4000 120 d/u: 25 dOutdoor use
(NEW) d: 50 dEquipped in vehical
u: 45 dIndoor use
LDU-1515 (2.5) 1500 120 d/d: 55dLow noise level
Wide visible angle
Specifications

2 (E) LDU-1530/1540/1515
Table of Contents
1. Service Information
1-1. Circuit Boards Location ........................................................................1-1 (E)
1-2. Disassembly ..........................................................................................1-2 (E)
1-2-1. Exchanging the Display Unit from the Front Side of
the Unit (LDU-1530S/1530L/1540S/1540L) .......................1-2 (E)
1-2-2. Exchanging the Display Unit from the Behind of
the Unit.................................................................................1-3 (E)
1-2-3. Rear Cover Removal ............................................................1-4 (E)
1-2-4. G Board (Switching Regulator) Removal ............................1-4 (E)
1-2-5. Cell Assembly Removal
(LDU-1530S/1530L/1540S/1540L) .....................................1-5 (E)
1-2-6. B Board Removal (LDU-1530S/1530L/1540S/1540L) .......1-5 (E)
1-2-7. B Board Removal (LDU-1515)............................................1-6 (E)
1-2-8. C Board Removal (LDU-1515)............................................1-7 (E)
1-2-9. LDU-1540S/1540L Exterior View.......................................1-8 (E)
1-3. Cleaning the Display surface ................................................................1-9 (E)
1-3-1. Criteria for display surface cleaning ....................................1-9 (E)
1-3-2. Available detergent ..............................................................1-9 (E)
1-3-3. How to clean the louver and display surface .......................1-9 (E)
1-3-4. Models for indoor use ..........................................................1-9 (E)
2. Electrical Adjustments
2-1. Lowest Frequency Adjustment (RV103) ..............................................2-1 (E)
2-2. Power Factor Improvement (PFC) Voltage Adjustment (RV101) .......2-1 (E)
2-3. Output Voltage Adjustment (RV201) ...................................................2-1 (E)
2-4. PLL Adjustment (RV2001)...................................................................2-1 (E)
3. Circuit Descriptions
3-1. Signal System........................................................................................3-1 (E)
3-2. Address Switch and Status LED ...........................................................3-3 (E)
3-2-1. Address Switch.....................................................................3-3 (E)
3-2-2. Status LED ...........................................................................3-3 (E)
3-2-3. Brightness Adjustment .........................................................3-3 (E)
3-3. G Board (power system) .......................................................................3-4 (E)
3-3-1. Filter & AC Rectifier Block .................................................3-4 (E)
3-3-2. PFC Block ............................................................................3-4 (E)
3-3-3. Power Supply Block.............................................................3-4 (E)
3-3-4. OTP (Temperature Protection) Circuit.................................3-4 (E)
3-3-5. Output Voltages ...................................................................3-4 (E)
3-3-6. OVP Circuit..........................................................................3-4 (E)

3 (E)
LDU-1530/1540/1515
4. Semiconductors...................................................................................4-1
5. Exploded Views
5-1. Chassis (LDU-1530S/1530L/1540S/1540L)...............................................5-2
5-1. Chassis (LDU-1515) ...................................................................................5-3
6. Electrical Parts List............................................................................6-1
7. Block Diagrams....................................................................................7-1
8. Diagrams
8-1. Schematic Diagrams and Printed Wiring Boards........................................8-1
Q .............................................................................................................................8-2
B .............................................................................................................................8-4
G (APS-102) .........................................................................................................8-14
C ...........................................................................................................................8-16

1-1 (E)
LDU-1530/1540/1515
Section 1
Service Information
1-1. Circuit Boards Location
Caution for Static Electricity to LED Cell (LDU-1530S/1530L/1540S/1540L), C Board (LDU-1515)
The LED is very weak to static electricity, and a discharge of static electricity could shorten the LED life.
Wear the earth bands when touching the LED or the connector of the LED cell (LDU-1530S/1530L/
1540S/1540L), C board (LDU-1515) to replace the LED cell (LDU-1530S/1530L/1540S/1540L), C board
(LDU-1515) or handle the unit.
Q
G (APS-102)
C
(LDU-1515)
C
(LDU-1515)
B

1-2 (E) LDU-1530/1540/1515
1-2. Disassembly
1-2-1. Exchanging the Display Unit from the Front Side of the Unit
(LDU-1530S/1530L/1540S/1540L)
1.
1Unit remover (Jig)
4-067-026-01
3.
2.
Display unit
2Pull out the display unit
with the jig.
3Remove two bosses.
4Remove the display unit.

1-3 (E)
LDU-1530/1540/1515
3.
2.
Claw
Hook
Note : Please make it sure that
hook are disconnected and
locked after the display
unit is removed.
Engage hooks with claws.
2Two hooks
1Spring hook (Jig)
4-067-027-01
4Remove two bosses.
3Push the display unit
in the arrow direction.
5Pull the display unit out of the
unit in the arrow direction.
1-2-2. Exchanging the Display Unit from the Behind of the Unit
1.

1-4 (E) LDU-1530/1540/1515
1-2-3. Rear Cover Removal
Note :When starting maintenance services, be sure to place a cushion that
prevents static charge to protect the LED from static breakdown and
louver from scars, when the unit is place on table with the CRT
surface facing down.
1-2-4. G Board (Switching Regulator) Removal
CN2003
CN1001
1Four screws (+BVTT4 x16)
LDU-1530S/1530L
LDU-1540S/1540L
1Four screws (+BVTP4 x16)
LDU-1515
2Rear cover
CN201
CN151
CN1018
1Four screws (+BVTT3 x10)
LDU-1530S/1530L
LDU-1540S/1540L
1Four screws (+PSW3 x25)
LDU-1515
3Three screws (+BVTP3 x8)
2Switching regulator
5G board
6Shield plate
4Three holders

1-5 (E)
LDU-1530/1540/1515
1-2-5. Cell Assembly Removal (LDU-1530S/1530L/1540S/1540L)
1-2-6. B Board Removal (LDU-1530S/1530L/1540S/1540L)
.Remove the G Board (switching regulator) and cell assembly.
1Screw (+BVTT3 x10)
1B board
1Eight screws (+B M3)
Note : fasten egually.
2Louver (L)
3Cell assembly
O ring

1-6 (E) LDU-1530/1540/1515
1-2-7. B Board Removal (LDU-1515)
3B board
1Screw (+PSW3 x25)
2Cabinet
Note : Lift up the cabinet egually
to remove the 16 connectors
from the C board in the louver
assembly.
Louver assembly
16 connectors on the C board

1-7 (E)
LDU-1530/1540/1515
1-2-8. C Board Removal (LDU-1515)
LED
1Rivet
2Guard, PWB C
Louver assembly
3C board
Note : All LEDs are installed in the
holes of louver assembly. Lift up
the C board egually not giving an
excessive force, and remove it.
Remove the C board to be replaced
only.

1-8 (E) LDU-1530/1540/1515
1-2-9. LDU-1540S/1540L Exterior View
Rear View
Front View
Note : On replacing one of the units in the module, each unit is placed in each shelf; the top, the middle
and the bottom. In three units, the top one and the bottom one cannot be replaced immediately
because the module frame obstructs them. To remove the top or bottom unit, remove the middle
unit first and unlock the hooks of the unit to be removed. Then slide it a little bit into the space
where the middle one used to be. To install, follow the method in reverse order, that is, slide the
unit in the shelf to fix through the space where the middle one used to be. After fixing, put the
middle unit back. (Please connect the cable and perform setting of address (3-3(E)).)
LDU-1540S/1540L

1-9 (E)
LDU-1530/1540/1515
1-3. Cleaning the Display surface
1-3-1. Criteria for display surface cleaning
1. Normally, clean the display surface once a year.
However, in areas where the unit is liable to become dirty, clean the display surface by criterion 2.
2. When the difference in luminance between when the display surface is dirty and when the display surface is cleaned
is 15% or more, clean the display surface.
1-3-2. Available detergent
Diluted neutral detergent (approx. 1 part detergent : 100 parts water)
Note: Do not use acidic and alkaline detergent, or organic solvent containing alcohol, etc.
1-3-3. How to clean the louver and display surface
1. Remove stains on the louver and display surface with a soft brush or cloth, etc. moistened with diluted neutral
detergent.
2. Then, wash away neutral detergent using clean water.
Note: 1. Do not directly wipe the display surface with a dry brush or cloth.
(Be sure to moisten the brush or cloth before cleaning.)
2. Wear an antistatic grounding strap during cleaning.
3. Do not apply force to the louver or display surface while wiping them.
1-3-4. Models for indoor use
When wiping the louver and display surface of an indoor model, wring the cloth to avoid moistening the unit with neutral
detergent and clean water.

2-1 (E)
LDU-1530/1540/1515
Section 2
Electrical Adjustments
[Measuring instrument]
1. Oscilloscope
2. Digital tester
3. DC power supply
G Board Adjustments
2-1. Lowest Frequency Adjustment
(RV103)
Apply 18 V between 4pin (VIN) and !; pin (GND) of
IC103, and check the Q105 gate input waveform with an
oscilloscope.
Then, adjust the frequency of gate waveform to 100 kHz
±2 kHz with the RV103. (Set oscilloscope to 5 V range)
*Don’t turn on Power supply AC.
2-2. Power Factor Improvement (PFC)
Voltage Adjustment (RV101)
Power supply AC100 to 240 V, and adjust RV101 so that
the voltage at both ends of C111 becomes 380 ±5 V. The
load mode is the MIN.
2-3. Output Voltage Adjustment (RV201)
Power supply AC100 to 240 V, and adjust RV201 so that
the output voltage of 5.8 V line (CN201 a8to ![ pins)
becomes 5.80 ±0.05 V.
Then, confirm that each line voltage is within the follow-
ing range.
5.8 V line (CN201 a8to ![ pins) 5.75 to 5.80 V
4.1 V line (CN201 a3to 7pins) 3.95 to 4.35 V
5.0 V line (CN201 a!], !\ pins) 4.80 to 5.20 V
12 V line (CN201 a1, 2pins) 9.8 to 12.4 V
The load mode is the MIN.
G Board (APS-102)
Q board adjustment
2-4. PLL Adjustment (RV2001)
Power supply AC100 to 240 V, connect the oscilloscope
with TP2001 and adjust RV2001 so that the center of
waveform becomes 1.7 ±0.05.
Q Board
RV103
Lowest Frequency
Adjustment
Q105
C111 RV101
Power Factor
Improvement Voltege
Adjustment
RV201
Output Voltage
Adjustment
IC103 CN201
a
116
98
15
1b
100 kHz ±2 kHz
1.7 ±0.05V
GND
TP2001 TP2002
(GND)
RV2001
PLL
Adjustment
IC2001
CN2003

3-1 (E)
LDU-1530/1540/1515
Section 3
Circuit Descriptions
3-1. Signal System
Fig. 2 Signal Block Diagram
Fig. 1
5 Vp-p
+5 V
0 V
+5 V
0 V
+
5 Vp-p_
+
_
Input Data
Input Output
Transmission
Line CN Board
Receiver IC
IC2001
In Image
Control Unit
(ICU)
Output Data
Balanced
Transmission
Data
Data
Noise mixing in transmission Line
(In-phase mixing in +and _)
+
_
RECEIVER
CGA
From
ICU
IC2002
IC2001
VCO
FILTER
IC2005
CPO CLK
D0-11
A1-11
D0-15
A0-19
D0-9
A0-9
CLK
IOUT0-23
CLK
IOUT0-23
CLK
IOUT0-23
D0-9
A0-9
D0-9
X16
A0-9
EEPROM
IC1010
D0-7
A0-12
SYS CLK
CPU
X1003
DRIVER
IC1017
DRIVER
To CELL
IC1018
DRIVER
IC1019
CLK
IOUT0-23
D0-9
A0-9
DRIVER
IC1032
IC1001
XTAL,EXTAL
ADDRESS
DATA
NTSC CLK
X1001 CLOCK
SELECT
IC1015
PAL CLK
X1002

3-2 (E) LDU-1530/1540/1515
Fig. 3
The data signals from ICU are input to the IC2001 CGA
via IC2002 line receiver on the Q board. A phase compara-
tor is built in the CGA, and the PLL is composed of a
combination of filter and IC2005 VCO. A clock compo-
nent contained in the data form ICU is extracted by this
PLL, and it is used as reference clock for CGA. The line
address is added to the head of image data, and the CGA
makes serial-parallel conversion of only the data that
corresponds to the unit ID concerned and takes it in the
RAM. The microprocessor IC1001 on the B board sends
this data to respective drivers (IC1017 to 1032). Where
PWM modulation is performed to drive the cells.
The correction data for each pixel are stored in the IC1010
EEPROM on the B board. The microprocessor always
writes these correction data into the RAM in driver ICs on
the B board. Based on these correction data, the driver ICs
control the current to correct uneven brightness of each
device. The clock input to the driver ICs is internally
divided according to the brightness level, and it is used as
reference clock for PWM modulation.
The correction data stored in the EEPROM are adjustable
in the field using the unit alignment controller or screen
alignment controller.
1/480 sec
1/60 sec
Image Data
Data Transfer
(CGA TO DRIVER)
WALL
(Emission Start
Signal)
Upper Lower Lower Lower LowerUpper Upper Upper
INTDT
(Data Receiving
Interrupt Signal)
XUPR
(Upper & Lower Lines
Switching Signal)
PWM Output
Data corresponding to unit
Blanking Period
Interrupted by a trailing edge