Text preview for : china_akira_ct29fd9_ch_h707v__with_sda555xfl_nn5198k__-_adj_157.pdf part of . Various china akira ct29fd9 ch h707v with sda555xfl nn5198k - adj 157 . Various CHINA TV TV Div Service Mode`s chinese TV`s china_akira_ct29fd9_ch_h707v__with_sda555xfl_nn5198k__-_adj_157.pdf



Back to : china_akira_ct29fd9_ch_h7 | Home

27




7. THE METHOD OF ADJUSTMENT FOR CHASSIS
FLOW CHART TO ADJUST IN PRODUCT LINE




*. HEAT RUN (AUTO POWER ON MODE): FACTORY KEY
- It need in assembly line during heat run that protect to auto power off after no signal
15 minutes and auto power on for input power of sets on/off by line condition which
sometimes line power connection of palette with main power line would be badly
contacted by shaking during the sets through on assembly lines.
- Heat run function is operated by pressing the f4 key.
- To cancel this function press the power key (on/off.)
- It must be canceled before final output.




Model No: CT-29FD9CP_29CPT_29FD9M
Version 1.0
28




7-1. V-SIZE / V-CENTER / H-CENTER (F2 key)
1. V-SIZE ADJUSTMENT.
- Select the V-SIZE by pressing CH UP/DOWN key
- Adjust the V-SIZE by pressing VOL UP/DOWN key for approximately one-half inch
over scan at top and bottom of picture screen.

2. V-CENTER ADJUSTMENT.
- Select the V-CENTER by pressing CH UP/DOWN key.
- Adjust V-CENTER so that the vertical center of the picture may be coincident with
the mechanical center of CRT.

3. PIN-CUSHION AND THE HORIZONTAL WIDTH ADJUSTMENT
- Adjust the pin-cushion to the one of `picture2' by changing resistor value of `VR401'.
: at the `cross hatch' pattern.
- Adjust the horizontal width to the one of `picture1' by changing resistor values of
`VR402'.
: at the `mono scope' pattern.




4. H-CENTER ADJUSTMENT.
- Select the H-CENTER by pressing CH UP/DOWN key.
- Adjust the H-CENTER by pressing VOL UP/DOWN key to be agreed with screen
center and mechanical center.
5. V-LIN ADJUSTMENT.
- Adjust V-LIN by pressing VOL UP/DOWN key.




Model No: CT-29FD9CP_29CPT_29FD9M
Version 1.0
29




7-2. SCREEN (SERVICE) ADJUSTMENT (F3 key)
- Receive the video no signal.
- Select the SERVICE mode by pressing CH UP/DOWN key.
- Make the horizontal line by pressing VOL UP/DOWN key.
- Adjust the SCREEN, till horizontal line is just disappeared.




7-3. WHITE BALANCE ADJUSTMENT (F3 key)
- Receive a black and white pattern or white balance adjusting pattern.
- Before attempting white balance adjustment, the receiver should be operating for at
least 15minutes.
- Check the all of position to the reference value (nominal center)
- The reference color of the measurement equipment set to G.
- Adjust the CUTOFF G, CUTOFF R, and CUTOFF B at bias mode.
- Adjust the R DRV, B DRV at drive mode.



7-4. SUB BRIGHT ADJUSTMENT (F2 key)
- Change Mode to VIDEO NO SIGNAL
- Select the NORMAL1 mode in the fuzzy key.
- Select the SUB BRIGHT mode by pressing CH UP/DOWN key in FACTORY2
mode.
- Adjust the SUB BRIGHT value till disappeared to back screen by pressing VOL
UP/DOWN.



7-5. AFT ADJUSTMENT (F1 key)
- Receive the RF color bar signal.
Select the AFT mode, and then press the vol up/down key.
Select the OK.



7-6. AGC ADJUSTMENT (F1 key)
- Receive the RF color bar signal.
- Strength of input signal control 63dBu.
- Select the AGC POINT mode, and then adjust an AGC POINT to 1.75
- Select the AGC AUTO mode, and then press the vol up/down key
- AGC is arranged automatically.
- Confirmation of the strong signal.




Model No: CT-29FD9CP_29CPT_29FD9M
Version 1.0
30




7-7. USER RESET (F2 key)
- It be cleared all user control to initial for all output sets will be same user control
condition.
- It need after final inspection.
* (then power on auto tuning automatically)
* CHECK SUM (password: remocon key: display --> mute sleep --> fuzzy --> timer)
To memory MASTER ROM (MULTI EEPROM MEMORY).
Adjust the value check sum "NG" by vol up/down
* TO adjust "OPTION MENU"
Press MENU button from factory key
After adjusting an option what you want, press MENU to end "OPTION MENU"

EX)




Model No: CT-29FD9CP_29CPT_29FD9M
Version 1.0
31




LANGUAGE (TTX OPTION)

Select the Character set mode, (LANGUAGE)




Model No: CT-29FD9CP_29CPT_29FD9M
Version 1.0