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SERVICE MANUAL
PERSONAL LCD DISPLAY
LDI-100B (SYL)
Model LDI-100B (SYL) are almost the same as LDI-100 (SYL).
This manual contains only the points which differ from LDI-100 (SYL).
For the information not contained in this manual, please refer to LDI-100 (SYL) service manual (9-
928-124-1X) previously issued.
9-928-132-11
NTSC Model


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­ 2 ­
!
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Notes on chip component replacement
· Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
· Keep the temperature of the soldering iron around 270 °C during
repairing.
· Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
· Be careful not to apply force on the conductor when soldering
or unsoldering.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
! OR DOTTED
LINE WITH MARK
! ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
!
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.


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1-1 E
GENERAL (Addition)


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2-2
ELECTRICAL ADJUSTMENTS (Addition of the Power Supply Block Adjustments)
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2-1


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[Battery Down Adjustment]
Mode
PC
RGB IN: No signal
Signal
PC AUDIO IN: No signal
VOLUME: Minimum
Measurement point
Displayed data on adj. remote commander
Measuring equipment
Adjustment page
F
Adjustment address
7E, 7F, 80, 81, 82, 83
Connection:
Referring to Fig. 3-4 (see page 2-3), connect the following equip-
ment.
(1)
Connect the regulated power supply and a digital voltmeter
to the battery terminal.
(2)
Connect the adjusting remote commander to the CN501 on
MA-324 (G) board.
(3)
Connect a PC to the RGB terminal.
Menu Setting:
Set the picture and sound to standard.
Adjustment Procedure:
(1)
Adjust the output voltage of regulated power supply so that
the battery terminal voltage is 6.0 ± 0.01 Vdc.
(2)
Turn ON the POWER switch on the set.
(3)
Set data: 03 to page: 0, address: FF.
(4)
Set data: 0A to page: 2, address: 01.
(5)
Read data (ZZh) on page: 3, address: 7D.
(6)
Set data: 00 to page: 0, address: FF.
(7)
Set data: 01 to page: 0, address: 01. (Cancel F page protect)
(8)
Using the following formulas (calculation of hexadecimal
numbers), calculate the adjustment data and enter them to
respective adjustment addresses.
Page: F
Address: 7E
F7E = ZZh
Page: F
Address: 7F
F7F = ZZh + 0Ah
Page: F
Address: 80
F80 = ZZh + 0Dh
Page: F
Address: 81
F81 = ZZh + 10h
Page: F
Address: 82
F82 = ZZh + 16h
Page: F
Address: 83
F83 = 01
(9)
Set data: 00 to page: 0, address: 01.
Note: After setting each data, be sure to press the PAUSE button on the
adjusting remote commander.
[Charge Adjustment]
Mode
PC
RGB IN: No signal
Signal
PC AUDIO IN: No signal
VOLUME: Minimum
Measurement point
Displayed data on adj. remote commander
Measuring equipment
Adjustment page
E, F
01, 02, 03, 04, 05 (E page)
Adjustment address
FE (F page)
Connection:
Referring to Fig. 3-4 (see page 2-3), connect the following equip-
ment.
(1)
Connect the regulated power supply and a digital voltmeter
to DC IN 8.4 V jack.
(2)
Connect the adjusting remote commander to the CN501 on
MA-324 (G) board.
(3)
Connect a PC to the RGB terminal.
Menu Setting:
Set the picture and sound to standard.
Adjustment Procedure:
(1)
Adjust the output voltage of regulated power supply so that
DC IN 8.4 V jack (DD-107 (G) board J701) voltage is 8.85 ±
0.01 Vdc.
(2)
Turn ON the POWER switch on the set.
(3)
Set data: 03 to page: 0, address: FF.
(4)
Set data: 0A to page: 2, address: 01.
(5)
Read data (XXh) on page: 3, address: 74.
(6)
Set data: 00 to page: 0, address: FF.
(7)
Set data: 01 to page: 0, address: 01. (Cancel E and F page
protect)
(8)
Using the following formulas (calculation of hexadecimal
numbers), calculate the adjustment data and enter them to
respective adjustment addresses.
Page: E
Address: 01
E01 = XXh
Page: F
Address: FE
FFE = XXh ­ 39h
(9)
Set data: 00 to page: 0, address: 01.
(10) Connect the regulated power supply and a digital voltmeter
to the battery terminal.
(11) Adjust the output voltage of regulated power supply so that
the battery terminal voltage is 8.35 ± 0.01 Vdc.
(12) Set data: 03 to page: 0, address: FF.
(13) Set data: 0A to page: 2, address: 01.
(14) Read data (YYh) on page: 3, address: 75.
(15) Set data: 00 to page: 0, address: FF.
(16) Set data: 01 to page: 0, address: 01.
(Cancel E page protect)
(17) Using the following formulas (calculation of hexadecimal
numbers), calculate the adjustment data and enter them to
respective adjustment addresses.
Page: E
Address: 02
E02 = YYh
Page: E
Address: 03
E03 = YYh ­ 02h
Page: E
Address: 04
E04 = YYh ­ 55h
Page: E
Address: 05
E05 = YYh + 02h
(18) Set data: 00 to page: 0, address: 01.
Note: After setting each data, be sure to press the PAUSE button on the
adjusting remote commander.
POWER SUPPLY BLOCK
2-2