Dell D1901N monitor User Manual
Page 16

14
CLOCK (pixel frequency) controls the number of pixels scanned by one
horizontal sweep. If the frequency is not correct, the screen shows vertical
stripes and the picture has not correct width.
FOCUS adjusts the phase of the pixel clock signal. With a wrong phase
adjustment the picture has horizontal disturbances in light picture.
For FOCUS and CLOCK adjustment use “dot-pattern” or win
95/98/2000/ME/XP shut-down mode pattern.
ERROR MESSAGE & POSSIBLE SOLUTION
CABLE NOT CONNECTED :
1. Check that the signal-cable is properly connected, If the connector is
loose, tighten the connector’s screws.
2. Check the signal-cable’s connection pins for damage.
INPUT NOT SUPPORT :
Your computer has been set to unsuitable display mode, set the computer to
display mode given in the following table.
- u2410 (43 pages)
- BN68-00344E-00 (6 pages)
- E173FP (56 pages)
- Precision 380 (372 pages)
- Precision 380 (186 pages)
- Precision 380 (230 pages)
- Precision 380 (46 pages)
- OptiPlex ARAIO (15 pages)
- 828FI (32 pages)
- E551 (4 pages)
- E2013H Monitor (51 pages)
- E2013H Monitor (4 pages)
- E2013H Monitor (5 pages)
- E2013H Monitor (1 page)
- P2014H Monitor (38 pages)
- P2014H Monitor (3 pages)
- P2014H Monitor (1 page)
- SP2309WFP Monitor (36 pages)
- SP2309WFP Monitor (2 pages)
- P2314T Multi Touch Monitor with LED (4 pages)
- P2314T Multi Touch Monitor with LED (1 page)
- P2314T Multi Touch Monitor with LED (2 pages)
- P2314T Multi Touch Monitor with LED (1 page)
- P2714T Multi Touch Monitor with LED (2 pages)
- P2314T Multi Touch Monitor with LED (52 pages)
- P2714T Multi Touch Monitor with LED (1 page)
- P1913 Monitor (1 page)
- P1913 Monitor (3 pages)
- P1913 Monitor (6 pages)
- P1913 Monitor (59 pages)
- E2014T 19.5 Multi-Touch Monitor with LED (1 page)
- E2014T 19.5 Multi-Touch Monitor with LED (4 pages)
- E2014T 19.5 Multi-Touch Monitor with LED (56 pages)
- U2913WM Monitor (1 page)
- U2913WM Monitor (11 pages)
- U2913WM Monitor (65 pages)
- E2313H Monitor (4 pages)
- E2313H Monitor (5 pages)
- E2313H Monitor (51 pages)
- E2313H Monitor (1 page)
- ST2420L Monitor (33 pages)
- ST2420L Monitor (2 pages)
- E2211H Monitor (2 pages)
- E2211H Monitor (33 pages)
- S2440L Monitor (1 page)