PG-C20XE (serv.man5). Section 2 - Service Manual Text - Sharp Projector Service Manual (repair manual). Page 23

1. Turn on the power (with the

lamp on) and warm up the
set for 15 minutes.

2. Select the following group,

sub-group and subject.
Group : Option
Sub-group:

EEPROM Initialize

Subject : Initialize Start

»

Make the following settings.
Press SW1601 to call the process mode. Initialize
the EEPROM by execution of Initialize Start. (After
the execution of Initialize Start, the EEPROM will not
be initialized unless the power is once turned off.)

1. Feed the XGA 10-step sig-

nal.

2. Select the following group,

sub-group and subjects.
Group : Adjust PC Image
Sub-group: AD
Subject :

R-Bright (In R adjustment)
G-Bright (In G adjustment)
B-Bright (In B adjustment)

3. Connect the synchroscope

(0.2V/div.) to the following
TPs.
 In R adjustment  TP1403
 In G adjustment  TP1402
 In B adjustment  TP1401

»

Adjust the setting just until the color tone level 0 starts
moving.

0-gradation

10-gradation

0.8Vp-p

1

Precautions for initializing
It takes 5 seconds to get the memory initialized and the initial settings rewritten. To go through the initialization, the
onscreen display background on the process menu screen turns red and the message "INITIALIZE" appears
onscreen for 5 seconds after pressing the specified key. Finally turn off the AC power (unplug the power cord).

2

Initial factory settings (S4, S5)
It takes 5 seconds to get the initial factory settings written. Do not turn off the main power during this procedure. To
ensure this waiting time, "S4" or "S5" appears on the onscreen display for 5 seconds. When this sign disappears,
you can keep on the power or turn it off.

3

Video adjustment
Be careful not to cut off the signals during the video adjustment.