Sharp VL-Z700S-T Service Manual page 37

9-2. Adjustment of camera section
9-2-1. Servicing of camera section
(1) Camera adjustment should be performed with the set completed.
(2) Subjects, measuring instruments and jigs necessary for servicing and adjustment of the camera section
• Gray scale chart
• Color bar chart
• Oscilloscope
• Digital voltmeter
• Halogen lamp: 2 pcs.
• Vector scope
9-2-2. List of camera jigs
1. Gray scale chart
(390 x 520 mm)
2. JiGCHART-1
3. CP
1. Color temperature
conversion filter
(3200 degrees K ⇒ 6800
degrees K)
2. JiGHOYA-LB165
3. BN
9-2-3. Adjustment of camera section
(1) Preparations and checking before adjustment
1) Adjust the lighting so that the illumination intensity is about 3000 lx and that uniform illumination is provided on the whole pattern.
(It is desirable that two or more lamps be used as light sources.)
Set the color temperature at 3200K.
2) The test pattern used should be free from stains and color deterioration.
3) If a failure occurs in the electric circuit, be sure to locate the fault using a measuring instrument and perform repairing or
replacement before making adjustment of camera section.
(2) Adjustment remote control RRMCG0033TASA
The adjustment remote control (RRMCG0033TASA) is used to adjust the camera section of this unit. Adjustment is made by writing
data into the E 2 PROM(IC705) at particular addresses using the remote control via the microcomputer.
1) To adjust the camera
Press the "CONTINUE" key and then press the "CAM ADJ" key.
The following display will appear on the LCD screen, allowing you to make adjustment.
CAM ADJ
2) Description of display
CAM
(Address value)
* This unit has addresses 0000 to 07FF.
* Byte data (last two digits valid) and 2-byte data (last three digits valid) are available.
• Frequency counter
• Illumination meter
• Color temperature meter
• Color temperature conversion filter
HOYA "LB-165"
• Color video monitor
1. Color bar chart
(240 x 320 mm)
2. JiGCHART-4
3. DA
1. PC plate connector drawer
2. JiGTH-SS10
3. AW
ADJ (It means camera adjustment.)
(Data value)
• Video output cable
• AC adapter
• Extension cables
• Adjustment remote control
<Note: Order of descriptions> 1. Jig name 2. Part code 3. Code
1. Illuminometer
(0 to 3000 lx)
2. JiGMETER-1
3. CT
1. Adjustment remote control
2. RRMCG0033TASA
3. BT
37
VL-Z700S-T
VL-Z800S-S/E-S/E-T/Z900H-S
VL-Z950S-S/E-A/E-S/E-T/E-W
Sketch
1. Color temperature meter
(1600 to 40000 degrees K)
2. JiGMETER-2
3. EL