Erisson 5N11 Service Manual

SKYWORTH®

SERVICE MANUAL

COLOUR TELEVISION PAL/SECAM BG/DK /NTSC PLAYBACK

CHASSIS : 5N11

MODEL: 2522, 2588, 25F1, 2998, 2922, 2929, 29F1, 3423, 3498, 3898,L25, D25, L29, D29, L34,

ALIGNMENT INSTRUCTION (5N11)

CHASSIS ADJUSTMENT

1. EEPROM partial initializing

1-1 Go to the function set menu (there are two ways;)

a.Press VOL+ key and VOLkey on the control board at the same time and switch on power switch, then go to the function set menu.

b.After TV is on, press "factory" key (See Note 1) twin then go to the function set menu.

1-2 Press 'PM' key and 'SM' key on the control board at the same time until the “INITIAL PART OK ” apears, this means the memory having been partially initialized. Operate repeatedly if the picture has no change.

All of the TV set EEPROM must be partially initialized before exfactory or after change of the Chroma IC NN5198 / NN5199 or fully EEPROM initialized after change of the EEPROM 24C04(OR 24C08,24C16,Note 4).

2. search and storage

COMPLETE MACHINE GENERAL ADJUSTMENT

1.Screen Voltage Adjustment.

1-1 Press 'screen' key (See Note 1);

1-2 Adjust the screen knob of FBT to get a horizontal faintness beam line; 1-3 Press 'screen' key again or 'stand by' key to go to the normal work status;

2.Focus Voltage Adjustment.

2-1 Receive monoscope pattern. Set picture mode to standard status; 2-2 Adjust the focus knob of FBT to get the clearest picture.

3.horizontal center adjustment 3-1 Receive monoscope pattern;

3-2 Press 'factory' key (See Note 1)one time and go to system parameter adjustment menu; 3-3 Press 'MENU' key, go to horizontal and vertical parameter adjustment menu;

3-4 Select 'H POSITION" by pressing 'PROG+' key and 'PROG-' key. Press 'VOL+' key and 'VOL-' key to obtain the horizontal center of the pattern at the center of CRT screen.

3-5 Exit system parameter adjustment menu by pressing 'factory' key twin.

4.PAL system vertical pincushion adjustment

4-1 Receive PAL system cross hatch pattern signal;

4-2 Press 'factory' key one time, go to system parameter adjustment menu;

4-3 Press 'MENU' key, go to horizontal and vertical parameter adjustment menu;

4-4 Select 'V LINE' and 'V SCURVE' by pressing 'PROG+' key and 'PROG-' key; press 'VOL+' key and 'VOL-' key and adjust corresponding parameter to obtain picture's vertical pin cushion a good status.

5.PAL system vertical size and vertical center adjustment

5-1 Continue operation 3. Select 'V HEIGHT" and 'V POSITION', press 'VOL+' key and 'VOL-' key adjust corresponding parameter to obtain picture's vertical size and vertical center adjustment a good status. 5-2 Exit system parameter adjustment menu by pressing 'factory' key twin.

6.White Balance adjustment

For Factory Auto Computer adjustment 6-1 Receive white balance test signal; 6-2 Set picture "MILD" mode.

6-3 Insert the special plug into CN002, press adjustment key which belongs to white balance adjustment

	equipment and go to auto white balance adjustment;
6-4	After adjustment well, remove the pug.
For Factory Auto Computer adjustment
6-5 Press 'factory' key one time and go to system parameter adjustment menu;
6-5	Press "MENU" key once then go to the White Balance adjustment menu;
6-6 Press ‘Prog +' key and 'Prog -' key to select the R, G, B cutoff and R, B Driver.
6-7	Press 'VOL+' key and 'VOL-' key to change. Or using the below direct key
6-8	Key: 0 for SUB-BRIGHT,	1 for CUTOFF-R,	2 for CUTOFF-G,
	3 for CUTOFF-B,	4 for DRIVER-R,	5 for DRIVER-B
	Recall for toggle the SubBright adjustment (Min. contrast, some CPU version is not work)
7. Sub-bright adjustment
7-1	Receive PHILIPS signal;
7-2	Set picture "RICH" mode.
7-3	Press 'factory' key one time and go to system parameter adjustment menu;
7-4 Press digital key '0', select 'SUB-BRIGHT';
7-5	Press 'VOL+' key and 'VOL-' key until Grey scale signal can be secerned;
7-6	Exit system parameter adjustment menu by pressing 'factory' key twin.

8.RF AGC adjustment

8-1 Receive 60dBuV monoscope pattern;

8-2 Press 'factory' key one time and go to system parameter adjustment menu; 8-3 Press 'PROG+' key and 'PROG-' key , select ' RF AGC ';

8-4 Press 'VOL+' key and 'VOL-' key to change the value of 'RF AGC' until picture's noise disturbing disappears just;

8-5 Exit system parameter adjustment menu by pressing 'factory' key twin.

9.NTSC system horizontal and vertical adjustment

Receive NTSC system cross hatch pattern. Adjust same as PAL system's.

10.warm up mode

10-1Switch on power switch and Press 'factory' key one time; switch off power switch and switch on power switch again, at this time there is no signal white raster and won't switch off automatically. TV receiver can be sent to warm up line.

10-2Before exit warm up line, press 'factory' key three times continue, at this time exit warm up mode , there is no signal and will appear LOGO pattern.

+ 4 hidden pages