This Service menu also use for :
14"
CT 1419PT, CT 1419U, CT1419UT, CT 1419A, CT 1419AT, CT 1419PD, CT 1419PDT, CT 1419DM, CT 1419DS, CT 1419D, CT 1419DT, CT 1419DTR, CT 1419M, CT 1419UE, CT 1419UET
20"
CT2019A, CT 2019AT, CT 2019PD, CT 2019PDT, CT 2019DM, CT 2019DS, CT 2019D, CT 2019DT, CT 2019DTR, CT 2019M
English
The description applies to a family of TV sets equipped with a B20 chassis, which is mainly a CRT.
A detailed list of receivers as well as a list of codes and versions of the EEPROM (IC602) non-volatile memory are presented in Table 1.
All settings related to the service mode are made using a standard remote control transmitter.
The set parameters are signaled on the screen in the form of OSD messages.
Before entering the service mode, the tester must be connected to the antenna input of the receiver.
A way to enter service mode
Turn off television and press Program up and volume down buttons on the local keyboard and press power button on TV unit with mains switch.
Confirmation of entering the service mode is displaying on the screen the message ..ADJUST MENU "with a set of reguation meters.
Service regulations of AKAI CT1419P TV Service menu
Be careful when entering service adjustments, set the correct supply voltage Unit + B. IN
for this purpose, ththesis:
• press the [NORMAL J button on the remote control transmitter to set the analog control in position
standardized,
• connect the DC voltage voltmeter to the C403 capacitor,
• using the VR901 potentiometer, set the + B line voltage with + 0.25V accuracy:
- CT-1419xx + 110V
- CT-2019xx + 115V
- CT-2119xx + 110V
- CT-2159xx + 110V
Procedures for setting parameters in the service mode
Automatic frequency adjustment (AFT) setting
Follow these steps in the order listed below:
• connect DC voltage to the R643 resistor and ground,
• enter the service mode and use the button [1] to select the AFT parameter ", the following message will appear on the screen of the receiver:
Procedures for setting parameters in the service mode
Automatic frequency adjustment (AFT) setting
Follow these steps in the order listed below:
• connect DC voltage to the R643 resistor and ground,
• enter the service mode and use the button [1] to select the AFT parameter ", the receiver will display the next pouting message:
• using the [Voice volume -] button set the minimum, AFT value - position XX should be set to "00",
• exit the service mode,
• press the [MENU] button on the remote control transmitter and then activate the ..MANUAL TUNE "item ([red] button;
• using the buttons [+] and [-] fine tune to the station; save the settings using the [green] button,
• enter the service mode and using the button [1] select the parameter "AFT \
• use the [-] and [+] buttons to reach the level of 2.5V ± 0.t V,
• exit the service mode.
Automatic Gain Control Setting (AGC)
Follow these steps in the order listed below:
• connect a standard 62t3dBuV test signal to the receiver's antenna input,
• turn the receiver off using the power switch,
• enter service mode and using the [2] button select the "AGC" parameter, the following message will appear on the screen of the receiver:
• use the [+] and [-] buttons to adjust the values of the C-R, C-G, C-B parameters until you get a whipped line without visible colors,
• separate measuring points TP301 with TP302,
• use the [+] and [- J buttons to adjust the D-R, D-B parameters until optimal white balance is achieved.
Setting the brightness adjustment range
Follow these steps in the order listed below:
• press the [NORMAL] button on the remote control transmitter to set the analog control in the normalized position,
• enter the service mode and use the [9] button to select the nS-B "parameter, the following screen will appear on the receiver screen pungent message:
• use the [+] and [-] buttons to set the optimal level of the brightness adjustment range,
Set the video signal level
Follow these steps in the order listed below:
• oscilloscope probe connect to the emitter of the Q305 transistor,
• entering the service mode and using the [0] button select the "VAD" parameter,
• use the [-] and [+] buttons until the video signal level is 2V ± 5%,
• exit the service mode.
Setting the geometry parameters of the image Proceed in the following order to perform the following:
• connect the grille test signal to the antenna input,
• enter the service mode and by using. [MUTE] button select the "H-C" parameter,
• the [-] and [+] buttons should be used to adjust the centering until the image is symmetrical in relation to the center of the screen,
• using the VR401 and VR402 potentiometers (V centering) to obtain optimal image geometry parameters.
Q How to exit the service mode. Turn the receiver off using the network button.
AKAI CT1419P TV Service menu
Universal Remote - Service Mode - TV Factory menu codes
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AKAI CT1419P TV Service menu (All TV Service Menu Code)
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"AKAI CT1419P TV Service menu"
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AKAI CT1419P TV Service menu mode
14"
CT 1419PT, CT 1419U, CT1419UT, CT 1419A, CT 1419AT, CT 1419PD, CT 1419PDT, CT 1419DM, CT 1419DS, CT 1419D, CT 1419DT, CT 1419DTR, CT 1419M, CT 1419UE, CT 1419UET
20"
CT2019A, CT 2019AT, CT 2019PD, CT 2019PDT, CT 2019DM, CT 2019DS, CT 2019D, CT 2019DT, CT 2019DTR, CT 2019M
21"
CT2019A, CT 2019AT, CT 2019PD, CT 2019PDT, CT 2019DM, CT 2019DS, CT 2019D, CT 2019DT, CT 2019DTR, CT 2019M Written on May 06, 2020