EMERSON EPT427 - 27" CTV - SERVICE MODE ADJUSTMENTS

TO ENTER SERVICE MODE

• Use the service remote control unit.
• Turn the power on. (Use main power on the TV unit.)
• Press " SLEEP " button on the service remote control unit. Version of microcomputer will display on the CRT. (Ex: 5Y10-1.34)
• Check the display on the lower left is "4A" and if it is not "4A", set it at "4A" according to "3-1 FRENCH,STEREO TYPE, ACCESS CODE, VIDEO TONE,SB SOUND" and "COMB FILTER".

TO MAKE A SERVICE REMOTE CONTROL, OUT OF USER REMOTE CONTROL

1. Prepare normal remote control unit. (Part No. N0105UD or N0127UD)
2. Remove 3 Screws from the back lid.
3. Added J1 (Jumper Wire) to the remote control CBA.

SERVICE MODE SETTINGS

Setting for 7F, FRENCH, STEREO TYPE, ACCESS CODE, VIDEO TONE SB SOUND and COMB FILTER data Values.

• Enter the Service mode.
• Press " VOL  DN" button on the Service remote control unit. Display changes " C/D ", " 7F ", " FRENCH ", " STEREO TYPE ", " ACCESS CODE", "VIDEO TONE ", "SB SOUND" and "COMB FILTER" cyclically when " VOL DN" button is pressed.

7F

Press " CH UP/DN" buttons on the Service remote control unit. Then choose " FF ".

FRENCH

Press " CH UP/DN" buttons on the Service remote control unit. Then choose " ON ".

STEREO TYPE

Press " CH UP/DN" buttons on the Service remote control unit. Then choose " MTS "

ACCESS CODE

Press " CH UP/DN" buttons on the Service remote control unit. Then choose " OFF "

VIDEO TONE

Press " CH UP/DN" buttons on the Service remote control unit. Then choose " OFF ".

SB SOUND

Press " CH UP/DN" buttons on the Service remote control unit. Then choose " OFF”

COMB FILTER

Press " CH UP/DN" buttons on the Service remote control unit. Then choose " ON "

Note: C/D and VCO data values are no need to adjust at this moment.

Setting for CONTRAST, COLOR, TINT, V-TINT and SHARP data Values.

• Enter the Service mode.
• Press " MENU " button on the Service remote control unit. Display changes " BRT ", " CNT ", " CLR ", " TNT " and " V-TINT " cyclically when " MENU " button is pressed.

CNT

• Press " MENU " button on the Service remote control unit. Then select " CONTRAST " (CNT) display.
• Press " CH UP/DN" buttons on the Service remote control unit so that the value of " CONTRAST " (CNT) becomes 92.

CLR

• Press " MENU " button on the Service remote control unit. Then select " COLOR " (CLR) display.
• Press " CH UP/DN" buttons on the Service remote control unit so that the value of " COLOR " (CLR) becomes 64.

TNT

• Press " MENU " button on the Service remote control unit. Then select " TINT " (TNT) display.
• Press " CH UP/DN" buttons on the Service remote control unit so that the value of " TINT " (TNT) becomes 64.

V-TNT

• Press " MENU " button on the Service remote control unit. Then select " V-TINT " (V-TNT) display.
• Press " CH UP/DN" buttons on the Service remote control unit so that the value of " V-TINT " (V-TNT) becomes 64.

Note: BRIGHT data value is no need to adjust at this moment.

All other data settings should be done with an experienced technician, having oscilloscope and signal generator.