Sharp XVC100U Service Manual

XV-C100U

SERVICE MANUAL

S99P4XV-C100U

PAL/SECAM/NTSC SYSTEM

LCD PROJECTOR

MODEL

In the interests of user-safety (Required by saf ety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.

XV-C100U

OUTLINE

The power unit and ballast unit of this model have been modified as follows in the course of production.
This Service Manual covers the processes before and after the power and ballast units have been modified.

MODEL & UNIT OLD NEW Numbers of units produced

XV-C100U (U.S.A)

POWER UNIT RDENC0272CEZZ DSETU1796FMV3 1~29 OLD
BALLAST UNIT RDENC0271CEZZ DSETU1802FMV3 30~ NEW

XV-C100U (Canada)

POWER UNIT DSETU1796FMV3 ← 1~ NEW
BALLAST UNIT DSETU1802FMV3 ←

CONTENTS

Page Page

• SPECIFICATIONS .............................................. 2

• IMPORTANT SERVICE SAFETE NOTES .......... 3

• NOTE TO SERVICE PERSONNEL .................... 4

• OPERATION MANUAL ...................................... 7

• REMOVAL OF MAJOR COMPONENTS ..........10

• OPTICAL SYSTEM .......................................... 14

• ADJ. IN FUNCTION ......................................... 16

• ELECTRICAL ADJUSTMENT .......................... 19

• TROUBLESHOOTING TABLE .........................25

• CHASSIS LAYOUT .......................................... 30

• DESCRIPTION OF SCHEMATIC DIAGRAM ...32

• WAVEFORMS .................................................. 33

• OVERALL WIRING DIAGRAM.........................34

• SCHEMATIC DIAGRAM................................... 36

• PRINTED WIRING BOARD ASSEMBLIES...... 55

• PARTS LIST

Ë

ELECTRICAL PARTS................................... 62

Ë

CABINET AND MECHANICAL PARTS ........ 76

Ë

ACCESSORIES PARTS............................... 82

Ë

PACKING PARTS ......................................... 82

• PACKING OF THE SET ................................... 83

SHARP CORPORATION

This document has been published to be used for
after sales service only.

1

The contents are subject to change without notice.

XV-C100U

Specifications

2

XV-C100U

2

2

2

IMPORTANT SERVICE SAFETY NOTES

Ë

Service work should be performed only by qualified service technicians who are thoroughly
familiar with all safety checks and servicing guidelines as follows:

WARNING

1. For continued safety, no modification of any circuit
should be attempted.

2. Disconnect AC power before servicing.

BEFORE RETURNING THE PROJECTOR:
(Fire & Shock Hazard)

Before returning the projector to the user, perform
the following safety checks:

1. Inspect lead wires are not pinched between the
chassis and other metal parts of the projector.

2. Inspect all protective devices such as non-metallic
control knobs, insulating materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacity networks, mechanical
insulators, etc.

3. To be sure that no shock hazard exists, check for
current leakage in the following manner:

» Plug the AC cord directly into a 120-volt AC outlet,

(Do not use an isolation transformer for this test).

» Using two clip leads, connect a 1.5k ohm, 10 watt

resistor paralleled by a 0.15µF capacitor in parallel
between all exposed metal cabinet parts and earth
ground.

» Use an AC voltmeter with sensitivity of 5000 ohm per

volt., or higher , sensitivity to measure the AC voltage
drop across the resistor (See Diagram).

» All checks must be repeated with the AC plug

connection reversed. (If necessary, a non-polarized
adapter plug must be used only for the purpose of
completing these checks.)
Any reading of 0.3 volts RMS (this corresponds to

0.2 milliamp. A C.) or more is e xcessive and indicates
a potential shock hazard which must be corrected
before returning the unit to the owner.

AC

VOLTMETER

1.5k ohm (10W)

0.15µF

TEST PROBE

TO EXPOSED
METAL PARTS

CONNECT TO KNOWN
EARTH GROUND

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SAFETY NOTICE

Many electrical and mechanical parts in LCD Projector
have special safety-related characteristics.
These characteristics are often not evident from visual
inspection, nor can protection afforded by them be
necessarily increased by using replacement components
rated for higher voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this manual; electrical
components having such features are identified b y “å”
and shaded areas in the Replacement Parts Lists and
Schematic Diagrams. For continued protection,
replacement parts must be identical to those used in the
original circuit. The use of a substitute replacement parts
which do not have the same safety characteristics as
the factory recommended replacement parts shown in
this service manual, may create shock, fire or other
hazards.

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques, dans
les projecteur à LCD présentent des caractéristiques
spéciales relatives à la sécurité, qui ne sont souvent
pas évidentes à vue.
Le degré de protection ne peut pas être nécessairement
augmentée en utilisant des pièces de remplacement
étalonnées pour haute tension, puissance, etc.
Les pièces de remplacement qui présentent ces
caractéristiques sont identifiées dans ce manuel;
les pièces électriques qui présentent ces particular ités
sont identifiées par la marque “å” et hachurées dans la
liste des pièces de remplacement et les diagrammes
schématiques. Pour assurer la protection, ces pièces
doivent être identiques à celles utilisées dans le circuit
d’origine. L’utilisation de pièces qui n’ont pas les mêmes
caractéristiques que les pièces recommandées par
l’usine, indiquées dans ce manuel, peut provoquer des
électrocutions, incendies ou autres accidents.

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3

XV-C100U

2

NOTE TO SERVICE PERSONNEL

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The light source, metal halide lamp, in the LCD
projector emits small amounts of UV-Radiation.

AV OID DIRECT EYE AND SKIN EXPOSURE.

To ensure safety please adhere to the following:

1. Be sure to wear sun-glasses when servicing the
projector with the lamp
turned “on” and the top
enclosure removed.

2. Do not operate the lamp outside of the lamp housing.

UV-RADIATION PRECAUTION

UV-Radiation and Medium Pressure
Lamp Precautions

1. Be sure to disconnect the AC plug when replacing
the lamp.

2. Allow one hour for the unit to cool down before
servicing.

3. Replace only with same type lamp. Type
CLMPF0053DE05 rated 65V/155W.

4. The lamp emits small amounts of UV-Radiation,
avoid direct-eye contact.

5. The medium pressure lamp involves a risk of
explosion. Be sure to follow installation instructions
described below and handle the lamp with care.

Ë

Lamp Replacement

Note:

Since the lamp reaches a very high temperature
during units operation replacement of the lamp
should be done at least one hour after the power
has been turned off. (to allow the lamp to cool off.)
Installing the new lamp, make sure not to touch the
lamp (bulb) replace the lamp by holding its reflector

3. Do not operate for more than 2 hours with the
enclosure removed.

2.
[Use original replacement only.]

Lamp

1

Reflector

2

DANGER ! –– Never turn the power on without the
lamp to avoid electric-shock or damage of the de vices
since the stabilizer generates high voltages at its
start.

4

XV-C100U

2

2

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La source de lumière, la lampe métal halide, dans le
projecteur LCD émet de petites quantités de radiation
UV.

EVITEZ TOUTE EXPOSITION DIRECTE
DES YEUX ET DE LA PEAU.

Pour votre sécurité, nous vous prions de respecter
les points suivants:

NOTE POUR LE PERSONNEL D’ENTRETIEN

PRECAUTION POUR LES RADIATIONS UV

Précautions pour les radiations UV
et la lampe moyenne pression

1. Toujours débrancher la fiche AC lors du
remplacement de la lampe.

2. Laisser l’unité refroidir pendant une heure avant de
procéder à l’entretien.

3. Ne remplacer qu’avec une lampe du même type.
Type CLMPF0053DE05 caractéristique 65V/155W.

1. Toujours porter des lunettes de soleil lors d’un
entretien du projecteur
avec la lampe allumée
et le haut du coffret retiré.

4. La lampe émet de petites quantités de radiation UV -
éviter tout contact direct avec les yeux.

5. La lampe moyenne pression implique un risque
d’explosion. Toujours suivre les instructions
d’installation décrites ci-dessous et manipuler la
lampe avec soin.

2. Ne pas faire fonctionner la lampe à l’extérieur du
boîtier de lampe.

Ë

Remplacement de la lampe

Remarque:

Comme la lampe devient très chaude pendant le
fonctionnement de l’unité, son remplacement ne doit
être effectué au moins une heure après avoir coupé
l’alimentation (pour permettre à la lampe de refroidir).
En installant la nouvelle lampe, s’assurer de ne pas
toucher la lampe (ampoule). Remplacer la lampe en

3. Ne pas faire fonctionner plus de 2 heures avec le
coffret retiré.

tenant son réflecteur 2.
[N’utiliser qu’un remplacement d’origine.]

Lampe

1

2

Reflecteur

DANGER ! –– Ne jamais mettre sous tension sans
la lampe pour éviter un choc électrique ou des
dommages des appareils car le stabilisateur génère
de hautes tensions à sa mise en route.

5

XV-C100U

2

WARNING: High brightness light source. Do not stare into the beam of light, or view directl y . Be especially

careful that children do not stare directly into the beam of light.

WARNING: To reduce the risk of fire or electric shock, do not expose this product to rain or moisture.

CAUTION

RISK OF ELECTRIC
SHOCK.
DO NOT OPEN.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE CABINET.

NO USER-SERVICEABLE PARTS.

REFER SERVICING TO QUALIFIED SERVICE

PERSONNEL.

The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to alert
the user to the presence of uninsulated
"dangerous voltage" within the product's
enclosure that may be of sufficient magnitude
to constitute a risk or electric shock to persons.

The exclamation point within a triangle is
intended to alert the user to the presence of
important operating and maintenance
(servicing) instructions in the literature
accompanying the product.

WARNING: The bimetallic component has the primary conductive side exposed. Be very careful in

handling this component when the power is on.

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A VERTISSEMENT: Source lumineuse de grande intensité. Ne pas fixer le faisceau lumineux ou le regarder

directement. Veiller particulièrement à éviter que les enfants ne fixent directement le
faisceau lumineux.

AVERTISSEMENT: Afin d'éviter tout risque d'incendie ou d'électrocution, ne pas exposer cet appareil à

la pluie ou à l'humidité.

ATTENTION

RISQUE CHOC
ELECTRIQUE—
NE PAS OUVRIR.

ATTENTION: POUR EVITER TOUT RISQUE

D'ELECTROCUTION, NE PAS RETIRER LE CAPOT.

AUCUNE DES PIECES INTERIEURES N'EST REPARABLE

PAR L'UTILISATEUR. POUR TOUTE REPARATION,

S'ADRESSER A UN TECHNICIEN D'ENTRETIEN QU ALIFIE.

L'éclair terminé d'une flèche à l'intérieur d'un
triangle indique à l'utilisateur la présence à
l'intérieur de l'appareil d'une «tension
dangereuse» non isolée ayant une amplitude
suffisante pour provoquer une électrocution.

Le point d'exclamation à l'intérieur d'un triangle
indique que des instructions de fonctionnement
et d'entretien importantes sont détaillées dans
les documents fournis avec l'appareil.

A VER TISSEMENT : La composante bimétallique dispose du conducteur primaire dénudé. Faire attention

lors de la manipulation de cette composante sous tension.

6

Location of Controls

XV-C100U

7

XV-C100U

Remote Control Operation

8

Dimensions

XV-C100U

9

XV-C100U

Rear Cabinet

1-4

1-5

REMOVAL OF MAJOR COMPONENTS

1. Removing the cabinets

1-1. Remove the screw and detach the lamp cage cover.
1-2. Remove the two lock screws (two 4-mm screws) off the lamp/cage module unit.
1-3. Turn the lens shift dial until the lens comes to almost the center of the lens hole in the front cabinet.
1-4. Remove the six screws (six 3-mm tapping screws) off the rear cabinet.
1-5. Remove the M3 tapping screw off the sub unit cover.

1-1

Lamp Cage Cover

1-2

Lamp/Cage Module Unit

1-3

1-6. Remove the air filter cover.
1-7. Remove the five tapping screws off the bottom cabinet.

1-7

Bottom Cabinet

1-6

Air Filter Cover

1-7

10

Top Cabinet

1-8

1-10

(PE)

XV-C100U

1-8. Now lift the top cabinet further up and

disconnect the leaf switch connectors (LL) as
well as the operation key unit flat cable (KE).
The top cabinet is now free.

1-9. Disconnect the connector (PE) of the AC cord

(that runs through the rear cabinet) from the

ballast unit. Detach the rear cabinet.
1-10. Remove the spacer.
1-11. Remove the screws off the lens Cover.
1-12. Disconnect the speaker connector (SP) and

remove the three lock screws. Remove the

screw off the ground lead. Now detach the side

cover.

Rear Cabinet

1-9

1-12

1-11

Lens Cover

Reassembling procedure

1. Fit the lens cover and the side cover to the bottom panel. Tighten up the related screws.

2. Set the top cabinet over the bottom cabinet.

3. Tighten up the M3 tapping screw into the sub unit cover.

(SP)

Side Cover

1-12

4. Press the rear cabinet against the top and bottom cabinets to fit them together.

5. Tighten up the screws into the rear cabinet. Use the six 3-mm tapping screws.

6. Tighten up the tapping screws to fix the top and bottom cabinets.

7. Put the lamp/cage module unit into position. Tighten up the two 4-mm screws.

8. Place the lamp cage cover and tighten up the screws.

11

XV-C100U

2. Removing the PWBs

2-1. Slide out the power unit, ballast unit, main unit in their directions of arrow. Disconnect the connectors.
2-2. Remove the three screws, peel off the two pieces of tape, and take out the operation key unit.
2-3. Remove the screws off the control unit and R/C Receiver unit and sub unit. Disconnect the connectors.
2-4. Remove the button cover.

3. Removing the LCD module unit

3-1. Remove the screw off the panel cover. Take out the panel cover.
3-2. Pull up the LCD module unit slowly out of position.

2-2

Operation Key Unit

Panel Cover

3-2

2-3

2-3

3-1

LCD
Module Unit

R/C Receiver
Unit

Control Unit

2-1

2-4

Ballast Unit

2-3

Top Cabinet

2-1

Power Unit

Main Unit

Sub Unit Cover

2-3

12

2-1

Sub Unit

XV-C100U

4. Removing the optics mechanism assembly

4-1. Remove the four screws off the optics mechanism assembly. Detach the assembly from the bottom cabinet.
4-2. Remove the four screws off the intake duct assembly. Detach the intake duct assembly from the bottom

cabinet.

4-3. Remove the two screws off the cooling fan.

5.Removing the lamp

5-1. Remove the three countersunk lock screws off

the upper and lower lamp cases.

5-2. Remove the lock screw and the nut off the lamp

terminal.

5-3. Release the lamp lock spring off the hook below

the lower lamp case. Take out the lamp/mirror
assembly.

5-2

Lamp/Mirror
Ass’y

Lower Lamp Case

5-3

4-3

5-2

Lamp/Cage
Module Unit

Upper Lamp
Case

5-1

5-1

5-1

Optics Mecha

Ass’y

Bottom Cabinet Ass’y

Cooling Fan
(Exhaust Vent)

4-2

4-1

Intake Duct Ass’y

13

XV-C100U

Optical unit

RLCDP0088CEZZ

PCAPH1061CESB

Lens cap

OPTICAL SYSTEM

Polarizer Input plate

PFiLW0164CEZZ

PFiLW0202CEZZ

LCD

PFiLW0194CEZZ

Heat Management plate

UV/IR filter

PFiLW0200CEZZ

PLNS-0124CEZZ

Projection lens

Ë

Cleaning the lenses and reflectors

Diffraction grating

1. Lens cleaner

• Cleaning liquid:
Change the mixture ratio of alcohol and ether depending on ambient
temperatures. Make sure that the liquid evaporates from the lens
surface immediately after you rub it: This is the best ratio. The more
ether is used, the quicker the liquid evaporates.

• Method:
Use well-washed bleached cotton cloth or cleaning paper available
on the market. Damp the bleached cotton cloth with the liquid, and
hold the lens sandwiched in the cloth with your thumb and the index
finger. Tur n the lens and wipe the surface clean from the center
outward to collect dust. Be careful not to rub the coated surface too
strong.

CLMPF0053DE05

Lamp/Mirror Ass'y

14

Ë

Controlling the total operating hours of the lamp

The following control is carried out when the lamp has been used for 1,900 hours and 2,000 hours.

1. After 1,900-hour use

When the power is turned on, "LAMP" appears in the on-screen display for about 1 minute (flashing in yellow)
and the lamp LED indicator lights up in red.
When the 1,900-hour point comes up during use of the unit, the "LAMP" display starts flashing in yellow on the
screen for 1 minute at the very 1,900-hour point.
Now the lamp LED indicator changes from green to red.

2. After 2,000-hour use

When the power is turned on, "LAMP" appears in the on-screen display for 5 minutes (flashing in red) and the
lamp LED indicator lights up in red. Five min utes thereafter , the po wer turns itself off and the unit is interrupted.
When the 2,000-hour point comes up during use of the unit, the "LAMP" display starts flashing in red on the
screen for 5 minutes at the very 2,000-hour point. Five minutes later, the power turns itself off and the unit is
interrupted. (The lamp LED indicator stays red since the 1,900-hour point.)
If you try to turn on the power twice after the 2,000-hour point, the unit remains off.

3. When the 2000-hour point comes up, take the following steps.

Replace the lamp with new one. While holding down both the "VOLUME "" and "SELECT/ADJ "" Keys on the
unit, turn on the main power switch (located on the back of the unit). The lamp operating hourmeter is now reset
to zero. Tur n on the unit and make sure the time display shows "0000H".

XV-C100U

4. Displaying the total operating hours of the lamp

Change the STATUS3 data settings: PICTURE at 0, BRIGHT at MAX, COLOR at MIN, TINT at MIN, and
SHARPNESS at MAX. Hold down the SOUND DOWN and ENTER keys for longer than 2 seconds. By doing
this, the total operating hours will be displayed on the screen.

TIME
0000H

TOTAL TIME

0000H

15

XV-C100U

ADJ IN (adjustment input) FUNCTION

1. Keys used for the adjustments

On the sub PWB: S2001
Control keys: [ENTER], [MENU], [SELECT/ADJ.'], [SELECT/ADJ."], [VOLUME+]

2. Operation

Press S2001 to call up the ADJ IN mode.
Use the [SELECT/ADJ. '] and [SELECT/ADJ."] keys to select an adjustment group, and press the
[ENTER] key.
Use the [SELECT/ADJ. '] and [SELECT/ADJ."] keys again to select an adjustment subject, and
press the [ENTER] key.
The [SELECT/ADJ. '] and [SELECT/ADJ."] keys are also used to make adjustments.
Each time the [ENTER] key is pressed on the ADJ IN screen, the adjustment subjects of a group are
changed one by one. (Pressing the [VOLUME + ] key changes the subjects in the reverse order.)
When the [MENU] key is pressed, the previous group appears on the screen.
Press S2001 again to go out of the ADJ IN mode.

Group

Adjustment
subjects

VIDEO 1

H-CENT
P-H-CENT
CONT
BRIGHT
SUB-R
SUB-G
SUB-B

VIDEO 2

SUB-BIAS
R-BIAS
B-BIAS
R-DRIVE
B-DRIVE
TINT
COLOR
P-COLOR
S-COLOR

VIDEO 3

GAMMA1
GAMMA2
AGCADJ
T-BRT

VIDEO 4
C-CONT
C-BRIGHT
C-COLOR
C-TINT
C-H-CENT
C-PH-CENT

SET
HL

The adjustment group "LINE" is not used here.
Do not feed the signal when the adjustment group "N • W" is used.

N • W

RED
GREEN
BLUE
N • W

LINE

AUTO
OFF TIMER
TEMP1
TEMP2
FACTORY SET4

TEST

TIME1
TIME2

16

3. Adjustment subjects

VIDEO 1

H-CENT NTSC horizontal position adjustment
P-H-CENT PAL horizontal position adjustment
CONT Sub-contrast adjustment
BRIGHT Brightness adjustment
SUB-R Not used, just to be 0 (zero)
SUB-G Not used, just to be 0 (zero)
SUB-B Not used, just to be 0 (zero)

VIDEO 2

SUB-BIAS Sub-bias adjustment
R-BIAS White balance (red), bias adjustment
B-BIAS White balance (blue), bias adjustment
R-DRIVE White balance (red), drive adjustment
B-DRIVE White balance (blue), drive adjustment
TINT TINT adjustment
COLOR Color level adjustment
P-COLOR PAL color level adjustment
S-COLOR SECAM color level adjustment

XV-C100U

VIDEO 3

GAMMA1 Gamma correction 1
GAMMA2 Gamma correction 2
AGC ADJ AGC adjustment
T-BRT Chroma IC brightness adjustment

VIDEO 4

C-CONT Component input contrast adjustment
C-BRIGHT Component input brightness adjustment
C-COLOR Component input color level adjustment
C-TINT Component input tint adjustment
C-H-CENT Component input NTSC horizontal position adjustment
C-PH-CENT Component input PAL horizontal position adjustment

SET

HL Temperature detection level setting

N • W (Single-color display)

RED Red
GREEN Green
BLUE Blue
N • W Not used

TEST

TIME1 1-hour increment setting for total lamp timer
TIME2 1899H-1999H-0H-1899H setting for total lamp timer

17

XV-C100U

18

User mode screen

S2001

ADJ IN

VIDEO1 SET
VIDEO2 N • W
VIDEO3 LINE
VIDEO4 TEST

ENTER

VIDEO1

H-CENT SUB-R
P-H-CENT SUB-G
CONT SUB-B
BRIGHT

VIDEO2

SUB-BIAS
R-BIAS
B-BIAS
R-DRIVE
B-DRIVE

MENU

VIDEO3

GAMMA1
GAMMA2
AGC ADJ
T-BRT

VIDEO4

N • W

C-CONT
C-BRIGHT
C-COLOR
C-TINT
C-H-CENT

RED
GREEN
BLUE

N • W

C-PH-CENT

TINT
COLOR
P-COLOR
S-COLOR

ENTER

MENU

ENTER

MENU

ENTER

MENU

ENTER

MENU

ENTER

MENU

H-CENT

–3

SUB-BIAS

64

GAMMA1

255

C-CONT

–4

RGBN • W

P-H-CENT

GAMMA2

C-BRIGHT

0

R-BIAS

CONT

+6

AGC

ADJ

B-BIAS

0

C-COLOR

74

0

+5

74

T-BRT

–30

+7

BRIGHT

–3

R-DRIVE

C-TINT

Not used

64

+9

SUB-R

TINT

–3

0

SUB-G

B-DRIVE

COLOR

C-H-CENT

0

64

–4

+5

C-PH-CENT

HL
2

SUB-B

P-COLOR

0

FLOWCHART OF ADJUSTMENT

–6

+7

S-COLOR

–4

LINE

AUTO
OFF TIMER
TEMP1
TEMP2
FACTORY SET 4

Not used

TEST

TIME1
TIME2

ENTER

MENU

TIME1

0001

TIME2

0000

XV-C100U

ELECTRICAL ADJUSTMENT

No. Adjustment Item Adjustment Conditions Adjustment Procedure

1

NTSC free­running
frequency
(R1616)

2

PAL free­running
frequency
(R1602)

3

Horizontal
center (NTSC)
(DAC)

4

Horizontal
center (PAL)
(DAC)

1.Receive the NTSC monoscope pattern
signal.

2.Hold down S801.

1. Receive the PAL monoscope pattern
signal.

2. Hold down S801.

1. Receive the NTSC monoscope pattern
signal.

2. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 1
Subject: H-CENT

1. Receive the PAL monoscope pattern
signal.

2. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 1
Subject: P-H-CENT

• T urn R1616 until the image appears
as specified.

• T urn R1602 until the image appears
as specified.

• Using the ' and " keys, make the
overscan just the same at right and
left.

Overscan: 91-97%

• Using the ' and " keys, make the
overscan just the same at right and
left.

Overscan: 91-97%

5

Contrast (DAC)
(gamma
correction off)

1. Receive the NTSC 10-step pattern
signal.

2. Connect a dual-beam oscilloscope
between pin (2) of P1401 and GND.

3. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 2
Subject: SUB-BIAS

4. Using the ' and " keys, put the
waveform to its proper shape.

5. Press S2001 again to call up the ADJ
IN mode and select the following
subject.

Group: VIDEO 1
Subject: SUB-R, SUB-G, SUB-B
Make sure all these subjects have an

entry of 0 (zero).

6. Adjust R861 to get the highest gain.

7. Finally select the following subject.
Group: VIDEO 1
Subject: CONT

• Using the ' and " keys, adjust the
difference between the tenth-step
level and the pedestal level to

6.0±0.15 Vp-p.

10

19

XV-C100U

No. Adjustment Item Adjustment Conditions Adjustment Procedure

6

Automatic gain
control: R861
(gamma
correction off)

7

Brightness
(DAC)

(gamma
correction on)

1. Receive the NTSC 10-step pattern
signal.

2. Connect the dual-beam oscilloscope
between pin (2) of P1401 and GND.

3. Select the following subject.
Group: VIDEO 1
Subject: CONT

1. Receive the NTSC 10-step pattern
signal.

2. Connect the dual-beam oscilloscope
between pin (2) of P1401 and GND.

3. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 1
Subject: BRIGHT

• Turn R861 so that the difference
between the tenth-step level and the
pedestal level be 4.8±0.05 Vp-p.

10

• Using the ' and " keys, adjust the
difference between the first-step
level and the tenth-step level to

2.0±0.05 Vp-p.

10

1

8

Component
contrast (DAC)

(gamma
correction off)

9

Component
brightness
(DAC)

(gamma
correction on)

1. Feed the NTSC 10-step pattern signal
to the component terminal.

2. Connect the dual-beam oscilloscope
between pin (2) of P1401 and GND.

3. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 4
Subject: C-CONT

1. Feed the NTSC 10-step pattern signal

to the component terminal.

2. Connect the dual-beam oscilloscope

between pin (2) of P1401 and GND.

3. Press S2001 to call up the ADJ IN

mode and select the following subject.
Group: VIDEO 4
Subject: C-BRIGHT

• Using the ' and " keys, adjust the
difference between the tenth-step
level and the pedestal level be

4.8±0.05 Vp-p.

10

• Using the ' and " keys, adjust the
difference between the first-step
level and the tenth-step level to

2.0±0.05 Vp-p.

10

1

20

XV-C100U

No. Adjustment Item Adjustment Conditions Adjustment Procedure

10

Tint (DAC)

11

Component tint
(DAC)

1. Receive the NTSC half-color bar signal.

2. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 2
Subject: TINT

3. Connect the dual-beam oscilloscope
between pin (5) of P803 and GND.

1. Feed the NTSC half-color bar signal to
the component terminal.

2. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 4
Subject: C-TINT

3. Connect the dual-beam oscilloscope
between pin (3) of P803 and GND.

• Using the ' and " keys, adjust the
(B-Y) signal waveform to slope down
straight.

• Using the ' and " keys, adjust the
(B-Y) signal waveform to slope down
straight.

12

Sub-bias (DAC)
(gamma
correction on)

13

R-drive
B-drive

1. Receive the NTSC 10-step pattern
signal.

2. Connect the dual-beam oscilloscope
between pin (2) of P1401 and GND.

3. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 2
Subject: SUB-BIAS

1. Receive the NTSC 10-step pattern
signal.

2. Connect the dual-beam oscilloscope
between pin (3)(R) (or pin (1)(B)) of
P1401 and GND.

3. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 2
Subject: R-DRIVE, B-DRIVE

• Using the ' and " keys, adjust the
difference between the white levels
to 3.0±0.05 Vp-p.

• Using the ' and " keys, adjust the
difference between the first-step
level and the tenth-step level to

2.0±0.05 Vp-p.

21

XV-C100U

No. Adjustment Item Adjustment Conditions Adjustment Procedure

14 • Using the ' and " keys, adjust the

R-bias
B-bias

15

NTSC color
(DAC) (gamma
correction on)

1. Receive the NTSC 10-step pattern
signal.

2. Connect the dual-beam oscilloscope
between pin (3)(R) (or pin (1)(B)) of
P1401 and GND.

3. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 2
Subject: R-BIAS, B-BIAS

1. Receive the NTSC half-color bar signal.

2. Connect the dual-beam oscilloscope
between pin (3) of P1401 and GND.

3. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 2
Subject: COLOR

difference between the white le v els
to 3.0±0.05 Vp-p.

• Using the ' and " keys, adjust the
difference between the 100% white
level and the primary red level to
0±0.05 Vp-p.

100% white

Primary red

16

PAL color (DAC)
(gamma
correction on)

1. Receive the PAL half-color bar signal.

2. Connect the dual-beam oscilloscope
between pin (3) of P1401 and GND.

3. Press S2001 to call up the ADJ IN
mode and select the following subject.

Group: VIDEO 2
Subject: P-COLOR

22

• Using the ' and " keys, adjust the
difference between the 100% white
level and the primary red level to

0.10±0.05 Vp-p.

100% white

Primary red