Adjustment; How To Access Service Mode - Samsung P2270HD Service Manual

4. Troubleshooting

4-7. Adjustment

4-7-1. Service Instruction
1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specified test equipment or its equivalent.
3. Correct impedance matching is essential.
4. Avoid overload. Excessive signal from a sweep generator might overload the front-end
of the TV. When inserting signal markers, do not allow the marker generator to distort test result.
5. Connect the TV only to an AC power source with voltage and frequency as specified on the backcover nameplate.
6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure that the power cord is
disconnected before replacing any parts.
7. To protect aganist shock hazard, use an isolation transform.

4-8. How to Access Service Mode

4-8-1. Entering Factory Mode
To enter "Service Mode" Press the remote -control keys in this sequence :
- If you do not have Factory remote - control
Power OFF
- If you have Factory remote - control
PICTURE ON
- The buttons are active in the service mode.
1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left
2. Function - Control Key : Source(ENTER), Menu, VOL-, VOL+, CH-, CH+, POWER
4-8-2. Service Mode Menu
Option
ADC/WB
Control
Advanced
Expert
SVC
Menu Full Menu Display/Move to Parent Menu
Direction Keys ▲/▼ Item selection by Moving the Cursor
Direction Keys ◄/► Data Increase / Decrease for Selected Item
Source Cycles through the active input source that are connected to the unit
4-14
INFO MENU
INFO FACTORY
Arrow Right, Menu, Enter, Number Key(0~9)
MUTE Power ON