CP-780 Service Manual

3 ALIGNMENT INSTRUCTIONS3.1 MICROCONTROLLER CONFIGURATION : SERVICE MODE

To switch the TV set into service mode please see instruction below.1 - Select PR. number 912 - Adjust sharpness to minimum and exit all menus.3 - Within 2 seconds press the key sequence : RED - GREEN - menuThe software version is displayed beside the word Service, e.g. SERVICE V0.22.To exit SERVICE menu press menu key or Stand By key.

3.2 SERVICE MODE NAVIGATIONPr Up/Down remote keys : cycle through the service items available.Vol -/+ remote keys : Dec./Increment the values within range - Cycle trough option bits.OK key : Toggle bits in option byte

Order Item Default setting1 HOR CEN 392 RED GAIN 323 GRN GAIN 324 BLUE GAIN 325 RED BIAS 326 GRN BIAS 327 AGC LEVEL NO ADJUSTMENT8 G2-SCREEN -9 OPTION1 0001 1001

10 OPTION2 0010 111111 AVL -12 PARABOLA 2013 HOR WIDTH 5014 CORNER T 3915 CORNER B 3916 HOR. PARAL 2517 V.LINEAR -18 V.SLOPE 3619 EW TRAPEZ 2520 S CORRECT 2221 VERT CENT 4322 VERT SIZE 24

3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS

There are two option bytes available (16 bits in all). These option bits are available from Service mode. First find the OPTION1/OPTION2/OPTION3 control, and then use the Volume PLUS/MINUS buttons on the remote control keypad to locate the bits, and OK key to toggle them. The table below shows the two option bytes available;

CP-780 Service Manual

3.4OPTION1B7 B6 B5 B4 B3 B2 B1 B0

1

0

TOPTeletext

OFF

FASTEXT(FLOF)

OFFTUBE

4:3DolbyVirtualOFF

VAI bit setto 1 in

SECAM LTUNER OPTIONS

00=PHILIPS01=Not used

10=Alps11=Parstnic(DW)TOPTeletext

ON

FASTEXT(FLOF)

ONTUBE16:9

DolbyVirtual

ONSVHS3enabled

VAI bit setto 0 in

SECAM L

3.5 OPTION2B7 B6 B5 B4 B3 B2 B1 B0

1

0

Fixed to0

Fixed to0

Nu Mustbe Set to

1 forFuture

compatibility

5 keysIacal

keyboard7 keysIacal

keyboard

Fixed to 0

n.u.Must be set

to 1 forfuture

compatibility

- OPTION SETTING BY MODEL

SVHS3disabled

FullATSS

BasicATSS

PAT&TAT

EnabledPAT&TAT

Disabled

CHASSIS MODEL OPTION DW[hex] REMARKSBIT[b7...b0]

CP-780 DUB-2850GB I 0001 1001 19 OPTION b1,b0 -II 0010 1111 2F Depends on Tuner

CP-780 Service Manual

3.6 NVM default setting

The purpose of this message, when you change a virgin EEPROM, is to allow to modify theNVM DATA to desired values.

1 - Introduction :The NVM default values are fixed for the user, but for flexibility in service, these data are storedin NVM and can be changed when the TV set is in a special mode call NVM EDITOR . Thismode can only be access from FACTORY mode.

2 - Entering into FACTORY mode.To switch the TV set into FACTORY mode, use the factory remote control, and press on SVCkey. The factory menu will appear on the screen, showing FACTORY , plus other relevantinformation like software version and date.WARNING : When in FACTORY mode you should not press any key other than the keysdescribed in the procedure below. Unwanted key stroke could misadjust the TV set.

3 - Entering into NVM EDITOR mode.To switch the TV set into NVM EDITOR mode, use the user remote control, and press onPICTURE/OK key. The NVM EDITOR window will appear on the screen. This mode allow

you to access all data stored in NVM. The current NVM address is given in column ADDR. inboth DECimal and HEXadecimal format. The column DATA gives the value contained atselected address in both DECimal and HEXadecimal format.

4 - Navigation in NVM EDITOR mode.Use Program Up/Down keys to select the desired address. Use Volume Up/Down keys tochange the data at selected address. You must press PICTURE/OK key to store value aftermodification.

The data can be adjusted between 0 and 63.

5 - Exit NVM EDITOR mode.To switch the TV set back into FACTORY mode, use the user remote control, and press onMENU key.

The factory menu will appear on the screen, showing FACTORY .

6 - Exit FACTORY mode.To exit FACTORY mode, use the factory remote control, and press on SVC key.The factory menu will disappear from the screen.

CP-780 Service Manual

NVM DATA CHANGE LIST

(hex) CP-780No Register Name Address Default DUB-2850GB1 OCP_THRESHOLD 0x58F 0x91