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.
! W ARNUNG
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, BECAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY A
DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE
CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE P ART NUMBERS APPEAR
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY .
!!
! MARK ON THE SCHEMA TIC
!!
ATTENTION!!
AFIN D’ÉVITER TOUT RISQUE D’ÉLECTROCUTION
PROVENANT D’UN CHÂSSIS SOUS TENSION, UN
TRANSFORMA TEUR D’ISOLEMENT DOIT ETRE UTILISÉ LORS
DE TOUT DÉPANNA GE.
LE CHÂSSIS DE CE RÉCEPTEUR EST DIRECTEMENT
RACCORDÉ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á LA
LES COMPOSANTS IDENTIFIÉS PAR UNE MAPQUE
LES SCHÉMAS DE PRINCIPE, LES VUES 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
NUMÉRO DE PIÈCE EST INDIQUÉ DANS LE PRÉSENT MANUEL
OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY.
Allow the warm-up time of 5 minutes after the power is on
before starting the following adjustments.
2-1-2. How to Enter the Factory Mode
2-2.V COM Adjustment
1. Input the green-only, 30 IRE single-line ON/OFF
signal to the input connector.
(XGA signal)
2. Enter the G VCOM adjustment screen of the Device
Adjust.
3. Adjust the G VCOM value so that the flicker is
minimal.
4. Switch the input signal from green-only to red-only
(30 IRE) then to blue only (50 IRE) single-line ON/
OFF signal. In the same way as step 3, adjust the R
VCOM and B VCOM values respectively so that the
flicker is minimal.
5. Take note of the adjustment values.
6. Set the “Image Flip” to either V or HV.
7. Input the above R/G/B adjustment values.
8. Take note of the adjustment values.
9. Set the “Image Flip” to OFF.
1. Confirm that the MENU can be displayed.
2. Close the MENU.
3. Press the keys in the following order : [ENTER] →
[ENTER] → [&]→ [ENTER].
The message [Do you want to enter the Factory Mode?
Yes : ↑ No : ↓] appears.
Select [Yes : ↑].
[Supplementary information: How to Exit the
Factory Mode]
Perform the step 3 KEY operation.
The message [Do you want to return to the User Mode?
Yes : ↑ No : ↓] appears.
Select [Yes : ↑].
VPL-PX35/PX40
2-1
Set MemoryStatus MemoryPicture MemoryW/B Memory
MenuTitleItemNameMemoryNameRemark
Video / S VideoInput A / B / CInput DVideoComputer
Dynamic Standard Dynamic Standard Dynamic Standard HighLowHighLow
Adjust Picture...
Contrast958095809580
Brightness505050505050
Color5050__5050
Hue5050__5050
Sharpness5050__5050
RGB Enhancer__30303030
Black Level Adj.OffOff__OffOff
Gamma Mode__Graphics Graphics Graphics Graphics
Color Temp.LowLowHighHighHighHigh
DDEFilmFilm__FilmFilm
Volume30
Dot Phase15 (*)
H Size*
Shift*
Wide ModeOffOff__OffOff
Scan Conv__OnOnOnOn
Auto Input Search Off
Input-D Signal Sel. Computer
Color SystemAuto
SpeakerOn
Power SavingOff
IR RecieverFront & Rear
IlluminationOn
2-3.Initial Values of Adjustment Items
PICTURE SETTING Picture ModeStandard
2-2
INPUT SETTINGAdjust Signal...
SET SETTINGSmart APAOn
VPL-PX35/PX40
Video / S VideoInput A / B / CInput DVideoComputer
Dynamic Standard Dynamic Standard Dynamic Standard HighLowHighLow
Set MemoryStatus MemoryPicture MemoryW/B Memory
or each input signal (PRESET MEMORY No.).
MenuTitleItemNameMemoryNameRemark
VPL-PX35/PX40
MENU SETTINGStatusOn
LanguageEnglish
Menu PositionCenter
Menu ColorWhite
G140140140140
B140140140140
G85858585
B85858585
Image FlipOff
BackgroundBlue
Lamp ModeStandard
Direct Power OnOff
High AltitudeOff
Security LockOff
KeyEnter x 4
fVDisplay only
(Memory No.)Display only
(Resolution)Display only
Lamp TimerDisplay only
ROM VersionDisplay only
SC ROM Version Display only
Operation TimerDisplay only
Prev. Lamp Timer Display only
IP AddressDisplay only
Sub Net MaskDisplay only
INSTALL SETTINGV Keystone0
INFORMATIONfHDisplay only
W/B SETTINGGain R140140140140
Bias R85858585
* The “Dot Phase E, H Size, Shift H/V and Picture Mode” items in the “INPUT SETTING” menu have their respective initial values f
n
There are some adjustment items that cannot be adjusted, depending on the input signal.
NT443/ N/Secam/(15k)speed(YP b Pr) (GBR)Video -A-B-C-DDownDown
2
Thresh Still Small 4
22 Pre Post Rate 15
22 Pre Post Thresh
Film Times 223
Sudare Rate 324
Sudare Thresh 32 64
Sudare Rate 224
Sudare Thresh 22 40
Ip2/
NameChroma MemoryChannel Memory
DeviceItem NameMemory Name
2-8
IPIp/ Thresh Still Med 3
m
. There are some adjustment items that cannot be adjusted, depending on the input signal.
.* 1 : The value changes depending on the color systems and input terminals.
.* 2 : The value changes depending on the input signals.
VPL-PX35/PX40
2-4.Service Know-How
2-5.White Balance Adjustment
2-4-1. When the Prism Block Is Replaced
1. Perform the V COM adjustment. (Refer to Section “2-
2. VCOM Adjustment”.)
2. Write the GAMMA data of the prism block.
3. Perform the white balance adjustment. (Refer to
Section “2-5. White Balance Adjustment”.)
2-4-2. When the C Board Is Replaced
n
If any board other than the C board is replaced, there is not
adjustment item.
1. Install IC706 of the C board before replacement, into
the new C board.
2. Enter the Factory Mode.
3. Perform the V COM adjustment. (Refer to Section “2-
2. VCOM Adjustment”.)
4. If the white balance is significantly poor, perform the
white balance adjustment. . (Refer to Section “2-5.
White Balance Adjustment”.)
Preparation before adjustment
1. Input the 100 IRE flat field signal to the INPUT-D
connector and allow the warm-up of 10 minutes aging
at a minimum.
2. Enter the Service Mode.
Press the keys in the following order.
[ENTER] → [ENTER] → ↑ → ↓ → [ENTER].
The message [Do you want to enter the Service Mode?
Yes : ↑ No : ↓] appears.
Select [Yes : ↑].
[Supplementary information: How to Exit the
Service Mode]
Perform the step 2 KEY operation.
The message [Do you want to return to the User Mode?
Yes : ↑ No : ↓] appears.
Select [Yes : ↑].
2-5-1. HIGH Mode of INPUT-D
Connect the10-step signal to the INPUT-D connector and
measure the chromaticities at each brightness.
If chromaticities are different at each brightness, perform
the following adjustment.
1. Input the 100 IRE flat field signal to the INPUT-D
connector.
2. Measure the chromaticity (x, y).
3. Input the 80 IRE flat field signal.
4. Adjust the GAIN R and GAIN B in the HIGH mode of
W/B until the chromaticity (x, y) that is measured at
step 2 is obtained.
5. Input the 30 IRE flat field signal.
6. Adjust the BIAS R and BIAS B in the HIGH mode of
W/B until the chromaticity (x, y) that is measured at
step 2 is obtained.
7. Repeat steps 3 to 6 until the chromaticity (x ± 0.002, y
±0.004) with reference to the chromaticity (x, y) that
is measured at step 2 is obtained.
VPL-PX35/PX40
2-9
2-5-2. LOW Mode of INPUT-D
2-5-4. LOW Mode of VIDEO
1. Input the 80 IRE flat field signal to the INPUT-D
connector.
2. In the LOW mode of W/B, adjust the GAIN R for +15
higher than the value in the HIGH mode, adjust the
GAIN G for
__
_25 lower than the value in the HIGH
__
mode and adjust GAIN B that is the same as the value
in the HIGH mode.
3. Adjust BIAS R, BIAS B and BIAS G for the same
value as those of the HIGH mode.
4. Measure the chromaticity (x, y).
5. Input the 30 IRE flat field signal.
6. Adjust the BIAS R and BIAS B in the LOW mode of
W/B until the chromaticity (x, y) that is measured at
step 4 is obtained.
7. Input the 80 IRE flat field signal.
8. Adjust the GAIN R and GAIN B in the LOW mode of
W/B until the chromaticity (x, y) that is measured at
step 4 is obtained.
9. Repeat steps 5 to 8 until the chromaticity (x ± 0.002, y
±0.004) with reference to the chromaticity (x, y) that
is measured at step 4 is obtained.
1. Input the NTSC or PAL video signal to the input
connector.
2. In the LOW mode of W/B, adjust the GAIN R for
higher than the value in the INPUT-D LOW mode,
adjust the GAIN G for
__
_38 lower than the value in the
__
INPUT-D LOW mode and adjust GAIN B that is the
__
_18 lower than the value in the INPUT-D LOW mode.
__
3. Adjust BIAS G, BIAS R and BIAS B for the same
value as those of the INPUT-D LOW mode.
++
+19
++
2-5-3. HIGH Mode of VIDEO
1. Input the NTSC or PAL video signal to the input
connector.
2. In the HIGH mode of W/B, adjust the GAIN R for
__
_13 lower than the value in the INPUT-D HIGH
__
mode, adjust the GAIN G for
in the INPUT-D HIGH mode and adjust GAIN B that
++
is the
+35 higher than the value in the INPUT-D
++
HIGH mode.
3. Adjust BIAS G, BIAS R and BIAS B for the same
value as those of the INPUT-D HIGH mode.
__
_11 lower than the value
__
2-10
VPL-PX35/PX40
2-6.Memory Structure
g
Memory Structure
CPU internal ROM :384 K byte Flash Memory
CPU internal RAM :24 K byte
External NVM memory : 8 K byte EEPROM
Set Memory
Status
Memory
Chroma
Memory
W/B
Memory
Channel
Memory
Image Flip
Memory
No.01
No.02
No.03
No.04
No.99
NT358/443/BW60
PAL/PAL-M/N/
SECAM/BW50
15k RGB
Component(15k)
Double-speed Component
HDTV(YPbPr)
HDTV(GBR)
includ. Double-speed
Computer
Others
Video
S Video
Input-A
Input-B
Input-C
Input-D
Up/Down inversion is
impossible.
Up/Down inversion is
possible.
High
Low
High
Low
Set Memory Set Memory
Status
Memory
Chroma
Memory
W/B
Memory
Channel
Memory
Image Flip
Memory
No.01
No.02
No.03
No.04
Preset
Input-A
No.99
No.101
A
User
Input-
No.120
No.03
No.04
Preset
Input-B
No.99
No.121
B
User
Input-
No.140
No.03
No.04
Preset
Input-C
No.99
No.141
C
User
Input-
No.160
No.03
No.04
Preset
Input-D
No.99
No.161
D
User
Input-
No.180
NT358/443/BW60
PAL/PAL-M/N/
SECAM/BW50
15k RGB
Component(15k)
Double-speed Component
HDTV(YPbPr)
HDTV(GBR)
includ. Double-speed
Computer
Others
Video
S Video
Input-A
Input-B
Input-C
Input-D
Up/Down inversion is
impossible.
Up/Down inversion is
possible.
High
Low
High
Low
Status Memory
Chroma Me mory
W/B
Memory
Channel Memory
Image Flip Memory
Hi
Low
h
Picture Memory
CPU RAM
Memory
2-11
Picture
Memory
Video
S
Input-
Input-
Input-C
Input-
CPU ROM
Video
A
B
D
Dynamic
Standard
Dynamic
Standard
Dynamic
Standard
Dynamic
Standard
Dynamic
Standard
Dynamic
Standard
Initialize
Picture
Memory
External NVM
Dynamic
Video
Standard
Dynamic
S
Video
Standard
Dynamic
A
Input-
Standard
Dynamic
B
Input-
Standard
Dynamic
C
Input-
Standard
Dynamic
D
Input-
Standard
Activ e me mory c opy
VPL-PX35/PX40
Memory structure of this model consists of the followings.
1Set memory
2Status memory
3Chroma memory
4W/B memory
5Channel memory
6Image Flip memory
7Picture memory
* The gamma memory is realized by giving offset to the Contrast and Brightness output values to the devices in the gamma mode
function.
Flow of data is described briefly. When the power plug is connected to the wall outlet for the first time
(Standby state), all data that are stored in the internal ROM are written in the NVM (non-volatile memory). When the POWER is turned ON, all the status memory data and other memory data that are required
for the present picture are selected from each memory block and expanded in the internal RAM.
When any adjustment is performed at this moment, the adjustment data (user mode items) are written in
the NVM (Service/Factory items) automatically triggered by the memory operation.
The adjustment items (W/B, Device Adjust) that can be adjusted in the Service Mode or in the Factory
Mode, are memorized in the NVM at the time when the user performs adjustment and performs the
memory operation. Note that the factory adjustment data will be lost at this moment.