9
Model No: CT-21FDS1
Version 1.0
Item
TV system adapting & AV in/output inspection
AKTP01 chassis
Measuring
Equipment
SG (with NTSC3.58). User remote controller
Dual trace oscilloscope
Preparation
before Adj.
Input TV and AV signal
Inspection procedure
1. Input the TV signal which system is designated in technical specification.
2. Switch TV system to the set by pressing SYS key on user remote controller according to the TV
system in SG. The picture and sound must be normal.
3. Press TV/AV key, to select VIDEO1 or VIDEO2 input. The picture and sound must be normal
4. AV output inspection. Load a 75
Ω
resistor to VIDEO output terminal, 1Vp-p video output signal
that is from TV signal or from VIDEO1 or VIDEO2 input signal should be observed on the
oscilloscope. Load two 10K resistors separately to AUDIO R and L output terminals, two 0.7Vp-p
audio output signal that is from TV or from AV input signal (stereo) should be observed on the
oscilloscope.
Item General
adjustment
AKTP01 chassis
Measuring
Equipment
SG
No.1 and No.2 service remote controller and user remote controller
Preparation
before Adj.
Brightness, contrast and color should be set in standard
Press PP key repeatedly to set the picture at MEMORY2 (in standard)
Adjustment procedure
1. Receive the monoscope pattern signal
2. Turn the focus adjusting VR to make the picture clear.
3. Press M-ON key on No.2 service remote controller to set the set into manufactory adjustment
mode.
4. Adjust the picture size roughly by No.2 service remote controller.
5. Grid 2 voltage adjustment. Press key on No.1 service remote controller, to set the screen
into a horizontal line. Clockwise turn the screen VR gradually until a horizontal line appears on the
screen.
6. Press R+ or R- (with the red block), G+ or G- (with the green block) and B+ or B- (with the blue
block) key respectively, to adjust a horizontal line appeared to the white colour.
7. Press key again and changing back to normal screen.
