Manual for E773c Series

Name: Manual for E773c Series
Brand: Dell
Availability: InStock

Brand: Dell

Category: Monitor

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 9 p.m.

Manual Publish Date: 2005-05-01

1. Positioning and Power Connection: Place the display in the desired location and plug the power cord into a convenient AC outlet. Ensure the power cord is properly grounded.

2. Signal Cable Connection: Connect the 15-pin color display signal cable to your system device and secure the screws for a firm connection.

3. Power On and Warm-up: Turn the power switch to 'ON'. Allow approximately 30 seconds for the display tube to warm up. The Power-On indicator will light up.

4. Picture Adjustment: Once a signal is received, a pattern or data should appear. Adjust brightness and contrast to your preference.

5. Power Saving: The monitor features VESA DPMS power saving. Ensure the signal cable is connected to the PC.

6. Service: If service is required, the display must be returned with its power cord.

Troubleshooting and error codes

Trouble	Possible Cause	Solution
NO RASTER, NO HIGH VOLTAGE, INDICATOR IS ORANGE	Power Supply Fault	Check Main PCB Power Supply (55V, 12V, 80V, -12.5V). If OK, check High Voltage of CRT (approx. 24~26KV). If OK, check CRT Heater voltage (approx. 6.3V). If OK, check Screen Voltage (400V-600V). If OK, check CRT G1 voltage. If OK, check CRT Cathode voltage (55V-65V).
NO RASTER, INDICATOR IS GREEN	No Signal	Check IC801 VCC (approx. 5V). If OK, check output voltage of IC801 (approx. 2.5Vpp). If OK, check B+ voltage of video PCB (approx. 80V). If OK, check CRT Cathode voltage (approx. 40Vpp). If OK, check FBT screen voltage (400V-700V).
NO BLANKING	Blanking Circuit Fault	Check relative circuit of blanking. Check R879, D706, D863, C873 on Video PCB, check G1 relative circuit, FBT Pin 4 on Main PCB.
HOR./OSC/DEF/HV CIRCUIT FAULT	No Raster (Disconnect Signal Cable)	Check IC401 Pin 29 (approx. 12 VDC). If OK, check IC401 Pin 26 waveform (approx. 10Vpp). If OK, check collector voltage of Q402 (approx. 20Vpp). If OK, check collector voltage of Q403 (approx. 1200Vpp at FH:31KHz).