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SERVICE MANUAL
MODEL
COMMANDER DEST CHASSIS NO.

BE-3E CHASSIS
MODEL
COMMANDER DEST CHASSIS NO.

KV-28DC20B

RM-931

FR

SCC-Q23D-A

TV/SAT A B

C LUN

D MAR

E MER

JEU

VEN

SAM

DIM

JOURNEE

NUIT

PREFER -/--

SOIREE

SORTIE

SERV

PERSO

PILOTE MENU

PROGR

PROGR

RM-931 R

TV

1

SECTION 4 CIRCUIT ADJUSTMENTS
4-1. ELECTRICAL ADJUSTMENTS
Service adjustments to this model can be performed using the supplied Remote Commander RM-931.
PICTURE ADJUSTMENT

AFC mode

1 1 1 1 10 Adj Adj Adj Adj Adj Adj Adj 0 3 2 ON OFF OFF

HOW TO ENTER INTO SERVICE MODE
1. 2. Turn on the main power switch and enter into the stand-by mode. Press the following sequence of buttons on the Remote Commander.

REF position SCP BGR SCP BGF Trap fo Sub contrast Sub colour

+
(ON SCREEN DISPLAY)

5
(DIGIT 5)

+
(VOLUME +) (TV)

Sub brightness Green drive Blue drive Green cutoff Blue cutoff

·

`TT--' will appear in the upper right corner of the screen. Other status information will also be displayed. Press `MENU' on the remote commander to obtain the following menu on the screen.

Gamma Pre / overshoot Y delay D Pic D Colour DC Transfer

3.

GEOMETRY ADJUSTMENT - 4:3 TEST MENU V size > Picture Adjustment Geometry Wide IC status MSP Dynamic Convergence Current TV status V position S Correction V Linearity H size H position Pin Amp Pin Phase AFC Bow AFC Angle EHT V Adj Adj Adj Adj Adj Adj Adj Adj Adj Adj 1 0 Adj Adj

4. 5. 6.

Move to the corresponding adjustment using the Up/Down Arrow button on the remote commander. Press the Right Arrow button to enter the selected adjustment. Turn off the power to quit the service mode when adjustments have been completed.

EHT H Lo Corn Pin Up Corn Pin

WIDE ADJUSTMENT - 4:3

V Aspect V Scroll Upper V Lin Lower V Lin Left Blanking Right Blanking

0 31 0 0 7 7

24

Micro/Jungle MSP Dynamic Convergence NICAM Prescale I NICAM Prescale L NICAM Prescale BG NICAM Prescale DK AGC ON/OFF Constant gain CDB FM prescale FMP Zwei mono-st WHI Zwei st-mono WLO Zwei mono-bi WMH Zwei bi-mono WLO Time Zwei WML Fawct limit Fawct soll init FAW Faw ER Tol Nicam Err Max CCT Nicam Err Min Time Nicam Audio clock ACO Scart prescale Scart volume 127 97 97 97 ON 0 36 36 18 36 18 41 10 12 2 10 0 26 HIZ 25 64 Range H stat H amp l H amp r Up Y Low Y Y up l Y up r Y low l Y low r Mbow up l Mbow up r Mbow low l Mbow low r V Stat

SDA30C263/CXA2076

Adj

0 - 42

Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63

SUB BRIGHTNESS ADJUSTMENT
1. 2. 3. 4. Input a Phillips pattern. Set the picture control to minimum. Enter into the `Picture Adjustment' service menu. Adjust the `Sub-Brightness' data so that there is barely a difference between the 0 IRE and 10 IRE signal levels.

IC STATUS (CXA2076 / CXA2040) CXA2076 H lock IKR VNG X-RAY Colour system CV1 sync CXA2040 Sync sep S1 mode pin S2 mode pin TUNER Tuner status TV STATUS BE3E Text system Dolby Enabled DSP Present Text language set Menu language set Destination Ageing Auto Shut Off Size Colour trap sw Velocity mod AFT STATUS Digital RF C TEXT 2 NO NO WEST EAST B Disabled Enabled 28 ALL ON WINDOW NO 01100010 1 01 01 1 1 0 0 7 0

SUB CONTRAST ADJUSTMENT
1. 2. 3. 4. 5. Input a video that contains a small 100% area on a black background. Set the picture control to maximum. Connect an oscilloscope to Pin 3 of CN301 [A Board]. Enter into the `Picture Adjustment' service menu. Adjust the `Sub-contrast' data to obtain a black to white amplitude of 2.20V.

SUB COLOUR ADJUSTMENT
1. 2. 3. Receive a PAL colour bar video signal. Connect an oscilloscope to Pin 3 of CN301 [A Board]. Enter into the `Picture Adjustment' service menu. 4. Adjust the `Sub-colour' data so that the Cyan, Magenta and Blue colour bars are of B-Out Waveform equa l height as indicated below.
Same Level

25

SYSTEM B/G, D/K, I & L I.F ADJUSTMENT
1. 2. 3. 4. Input an off air signal of between 60-100dBuV / 75 ohm terminated, via the tuner socket. Enter into the `IF Adjustment' service mode [i.e `TT59'] to fix the I.F frequency to 39.9MHz. Enter into the service mode and select `Current TV status'. Adjust the I.F coil [LV01] until the `AFT Status' indicates a `Window' condition.

DEFLECTION SYSTEM ADJUSTMENT
1. 2. Enter into the `Geometry Adjustment' service menu. Select and adjust each item in order to obtain the optimum image.

GEOMETRY ADJUSTMENT

SYSTEM L BAND 1 I.F ADJUSTMENT
1. 2. 3. 4. Input an off air signal of between 60-100dBuV / 75 ohm terminated, via the tuner socket. Enter into the `IF Adjustment' service mode [i.e `TT59'] to fix the I.F frequency to 34.2MHz. Enter into the service mode and select `Current TV status'. Adjust the RV02 control until the `AFT Status' indicates a `Window' condition.

V size V position S Correction V Linearity H size H position Pin Amp Pin Phase AFC Bow

Adj Adj Adj Adj Adj Adj Adj Adj Adj Adj 1 0 Adj Adj

STUNER AGC ADJUSTMENT
1. 2. 3. Receive a signal of 63dBuV / 75 ohm terminated, via the tuner socket. Measure the voltage at test point 1 [A Board]. Adjust RV01 control to obtain a voltage of 3.0V +/- 0.3V.

AFC Angle EHT V EHT H Lo Corn Pin Up Corn Pin

V SIZE RV01 RV02

LV01 V LIN

A

TP1 S CORRECTION

TUNER / IF

V CENTRE

H SHIFT

H SIZE

PIN AMP

TILT

CORNER PIN

V ANGLE

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4-2. `TT' TEST MODE :
`TT' Mode is available by pressing the Test key twice. It is exited by pressing 0 twice, or by pressing the Test key, or by pressing the TV key, or by switching the set into standby. The functions described below are available by pressing 2 digits:
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Cancel Test mode Picture Maximum Picture Minimum Volume & Headphone Volume 35% Volume & Headphone Volume 50% Volume & Headphone Volume 65% Volume & Headphone Volume 80% Ageing mode Enable/Disable Shipping Condition Display TV status No function Sub Picture adjustment Sub Colour adjustment Sub Brightness adjustment Text H-Position adjustment (use Cursor <- & -> to adjust) Rotation Test No function No function No function No function No function Destination A/D (East Menu/West Text) Destination L (West Menu/West Text) Destination E (West Menu/West Text) Destination U (West Menu/ West Text) Destination D (East Menu/Greek Text) Destination B (East Menu/West Text) Destination K (East Menu/East Text) Destination R (Russian Menu/Russian Text) No function No function Toggle Auto Shutoff Disable No function No function No function No function No function No function Default Dynamic Convergence Settings 73 74 75 76 77 78 79 80 81 82 58 60 61 62 63 64 65 66 67 68 69 70 71 72 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 Re-initialise geometry settings Default Programme info in NVM with factory settings Default favourite pages to 100,101,102 and 103 Switch off all Parental locks

Reserved for Dealer Commander
Default MSP settings Set NVM as Non-virgin Set NVM as virgin No function Dolby Pro-Logic On, Volume 90% Noise On Left Speaker Noise On Right Speaker Only Noise On Centre Speaker Only Noise On Surround Speaker Only Set Colour to Minimum and Picture to Maximum Set Colour and Picture to Minimum and Adjust Sub-Brightness No function Erase SAT NVM Mode Switch Analogue to SAT (Selected number) Mode Switch Analogue to SAT (Last SAT channel) Send SAT into standby (toggle function) SAT Auto Reset (Enabled/Disabled) Reset SAT Front Panel/Main Micro Copy Protect Feature Enable/Disable Pre-set AV Labels No function No function Select Compact Text/Compact Text-2 Balance Left/Right (press Ä key for balance left, Å for balance right, and Æ for centre balance) Dual Sound Headphones ( Ækey for A, Ç key for B) Dual Sound Speakers ( Ækey for A, Ç key for B) DSP Bypass Dolby Enabled/Disabled toggle Setup trap switch Set Screen Size Wide Setup No function Velocity Mod ON Velocity Mod OFF

Reserved for Dealer Commander
No function Re-initialize the NVM

27

83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

Special Picture Mode - Personal mode, reset & brightness = 0 Text Interlace odd (Non interlace mode = 3) Text Interlace even (Non interlace mode = 2) Auto Cut Off ENABLE Auto Cut Off DISABLE Diagnostics OFF Diagnostics ON No function Clear & disable OSD Enable OSD D/K Nicam Enable D/K Nicam Disable Reset language select menu on power up Set all programme labels to default No function Download default geometry offsets to the NVM No function

4-3. `T' TEST MODE :
`T' Mode is available by pressing the Test key once. It is exited by pressing the Test key twice, or by pressing the TV key, or by switching the set into standby. The functions described below are available by pressing the indicated key :

Key Volume + Volume Picture + Picture Colour + Colour Brightness + Brightness Hue + Hue Sharpness + Sharpness Balance Left Balance Right Treble + Treble Bass + Bass Analogue + Analogue -

T Mode Function Volume Maximum Volume Minimum Picture Maximum Picture Minimum Colour Maximum Colour Minimum Brightness Maximum Brightness Minimum Hue Maximum Hue Minimum Sharpness Maximum Sharpness Minimum Balance Full Left Balance Full Right Treble Maximum Treble Minimum Bass Maximum Bass Minimum Select Analogue Value Maximum Select Analogue Value Minimum

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