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,

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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 VOL- key 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 horizonta l and vertical parame ter adjust ment men u;
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 horizonta l and vertical parame ter adjust ment men u;
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.

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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
10-1 Switch 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.

10-2 Before 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.

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