REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday 27 February 2019

HOW TO ENTER SERVICE MODE TO BUSH AND AKAI TVs

HOW TO ENTER SERVICE MODE TO BUSH and AKAI TVs

MODELS: CT-147MK-2 / CT-147R-MK2 / CT-217 MK2 / CT-217R MK2 / CT-207 MK2 / CT-207R MK2 & CT-21W9.

 To enter service mode to these sets
* Simultaneously press "Display Button" on the remote handset, and "Volume (-)" button on the front panel of the TV.
** To call an item to adjust, use Prog + & Prog (-) buttons on the remote control. *** To adjust the data value to selected item, Press V + & V(-) buttons on the remote control. **** To exit from service mode, switch OFF the TV by its "Front Panel Power ON/OFF button.
Various parameters and their default values.  Default values may change set to set.

OSD
PARAMETER
DEFAULT VALUE
RANGE
V-SIZE/50Hz
VERTICAL SIZE ADJUSTMENT FOR 50Hz
12
0=>127
V-POSITION 60Hz
VERTICAL POSITION FOR 60Hz
32
0=>63
BLUE-DRIVE
BLUE DRIVE CONTROL
127
0=>127
V-POSITION 50Hz
VERTICAL POSITION FOR 50Hz
32
0=>63
GREEN DRIVE
GREEN DRIVE CONTROL
14
0=>15
RED-DRIVE
RED DRIVE CONTROL
85
0=>127
BLUE-BAS
BLUE BIAS CONTROL
78
0=>255
GREEN-BIAS
GREEN BIAS CONTROL
125
0=>255
RED-BIAS
RED BIAS CONTROL
90
0=>255
SUB-TINT
SUB TINT CONTROL
84
0=>127
SUB-COLOR
SUB COLOR ADJUST
63
0=>63
CONTRAST-CENTER
CONTRAST CENTER ADJUST
63
0=>63
SUB CONTRAST
SUB CONTRAST ADJUST
15
0=>63
SUB-BRIGHT
SUB BRIGHTNESS ADJUST
116
0=>127
SECAM R-Y DC
R-Y DC ADJUST FOR SECAM SYSTEM
15
0=>15
SECAM B-Y DC
B-Y DC ADJUST FOR SECAM SYSTEM
15
0=>15
RF-AGC DELAY
RF AGC DELAY ADJUST
29
0=>63 [May differ set to set]
H-PHASE 60Hz
HORIZONTAL PHASE ADJUST FOR 60HZ STANDARD
18
0=>31
H-PHASE 50Hz
HORIZONTAL PHASE ADJUST FOR 50Hz STANDARD
11
0=>31
V-LENEARITY
VERTICAL LENEARITY ADJUST
21
0=.31 [May differ to set toset]

Posted By: FRANK at 01:48
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