Sharp 28JW-74E Service Manual page 7

• • • • • Use the channel up and down buttons to move between the options.
• • • • • Use the volume control buttons to change the data.
• • • • • To store the data, use the stand-by button on the remote control.
• • • • • To exit the Service Mode, turn the receiver off using the mains switch.
When the Service Mode is entered the following On Screen Display appears:
The figures displayed in the "XXXX" locations are hexadecimal representations of the number of times that particular
function has been executed. For example if the hexadecimal number displayed after "SW ON" was 0E4A, this would
correspond to the receiver being turned on 3658 times.
X
Adjustment menu:
The following adjustments can be carried out in the Service Mode.
01. Horizontal Shift
02. East West Width
03. Pin Phase
04. Pin Amp
05. Upper corner correction
06. Lower corner correction
07. Extreme Corner Correction
08. Vertical Linearity
09. Vertical Angle
10. Vertical Bow
When in the Service Mode it is possible to access certain functions by using the teletext keys as below.
• • • • • By pressing the Blue button each adjustment can be directly accessed via the remote control. Referring to the
list above, press the
adjustment. If any number above 26 is selected, the set will revert to the Service Mode entry page. To access a
number less than 10, use the 0 key first, i.e. 02.
• • • • • Press the Yellow button to go straight to the AGC adjustment.
• • • • • Press the Green button once to enter "FACTORY VOLUME" level. Use volume control keys to change the
setting. The original value will be recovered after resetting the TV set.
• • • • • Press the Green button twice to enter "FACTORY BALANCE" level. Use volume control keys to change the
setting. The original value will be recovered after resetting the TV set.
• • • • • Press the Red button once to enter "FACTORY CONTRAST" level. Use volume control keys to change the
setting. The adjustment is stored automatically.
• • • • • Press the Red button twice to enter "FACTORY BRIGHTNESS" level. Use volume control keys to change the
setting. The adjustment is stored automatically.
• • • • • Press the Red button three times to enter "FACTORY COLOUR" level. Use volume control keys to change the
setting. The adjustment is stored automatically.
• • • • • If buttons 0 through 9 are pressed, the set will automatically go to that program number.
Note that in case the blue button has been used before, the program number should be requested by using two
digit number (01...99).
• • • • • By pressing the Menu button, the unit will normalise Picture and Audio settings. The Auto Installation is then
turned "on".
SERVICE SOFTWARE 28JW74E ∗∗-∗∗∗∗∗
SW on: XXXX SW off: XXXX Hours ON: XXXX
11. Vertical Amplitude
12. S Correction
13. Vertical Shift
14. Red Cut Off
15. Green Cut Off
16. Blue Cut Off
17. Alter NVM Pag (Page)
18. Alter NVM Pos (Position)
19. Alter NVM Val (Value)
20. Teletext Mix Mode Contrast
Blue button followed by the adjustment number, this will directly access the selected
21. Teletext Contrast
22. OSD Contrast
23. DVCO Adjustment (Only PAL)
24. DVCO Adjustment (Only NTSC)
25. AGC Adjustment
26. Auto Installation On/Off
7
28JW-74E