Wednesday, February 26, 2014

HOW TO ENTER SERVICE MODE - AIWA TELEVISION [AIWA 1402,2002,2101]

Aiwa Model 1402,2002,2101                                                                                                               

Entering into service mode


Press [display] key on the remote handset and button on tv set, simoultaniously.   “serv”  will be displayed on screen to indicate that the tv is now in service mode.

Service mode keys

In service mode use following handset keys

1          [channel^] and [channel down] to select setting item.
2          [volume ^] and [volume down] to increase and decrease value of setting item.
3          [p--] to store the enw value in memory.
Storage is necessary before proceeding to the next setting otherwise the adjusted value will be lost and previous value will remain in memory.


Aiwa model ctv-c202

Press the hidden [test] key (hidden under the seal, below key [8] on remote handset to activate the service mode.
1    aging
2    aft ok
3    1234H
Here aging is used to stoop the tv set from auto shut off,  when there is no input signal, aft ok is used to display the aft [s] curve. It may show OK, up or dn, 1234H shows the total hours (In hexadecimal) the tv set {crt} was on.

Cancellation of service mode

Service mode is released by pressing the [test] key once again.

Replacing EEPROM

1    press [test] key (Hidden) on the remote control unit to activate the service mode.
2    Press [display] key on the remote control and verify the screen.
3    Press channel up/down button on the remote control and then move the red colour to K3.
4    Press [volume up/down] key on the remote control to set the data as given below

Up dn        s               1          2     3                           k        2        3        4          Y

+    -                            0          0     0                                    0        1        0          0
5    in the same sequence as in step 3 and 4, move crusor to K4. Then set the data as shown below.

Up dn        S              1          2     3                           K       2        3        4          Y
+    -                            0          0     0                                    0        0        1          0

6     With conditions as they are in step 5, press the [display] key and then press the [finish] key (hidden key, next to [system] key)

7     Following the display of “initial” on the screen for few seconds the power will automatically go off.