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 !

Friday, 22 March 2019

SAMSUNG CN331 - CN5039BZX _ HOW TO ENTER SERVICE MODE - ADJUSTMENT - APPLICABLE TO CN331EBZX/DIS CN501EBZX/DIS CN331EBZX/XAP CN501EBZX/XAP CN3339BZX/XAP CN5039BZX/XAP CN5085BZX/DRI

SAMSUNG CN331 - CN5039BZX _ HOW TO ENTER SERVICE MODE - ADJUSTMENT - 

 APPLICABLE TO CN331EBZX/DIS CN501EBZX/DIS CN331EBZX/XAP CN501EBZX/XAP CN3339BZX/XAP CN5039BZX/XAP CN5085BZX/DRI




ADJUSTMENT PROCEDURE
This mode uses the standard remote control.  The Service Mode is activated by entering the following remote-control sequence:
  • DISPLAY®FACTORY.
  • STAND-BY® MUTE® 1® 8® 2 ®POWER ON.
  • The “Service (Factory) message will be displayed. The Service Mode has four components:  Adjustment, Option Bytes and Reset.
  • Access the Adjustment Mode by pressing the ‘Volume’ keys ( Up or Down).
  • The adjustment parameters are listed in the table below, and selected by pressing the CHANNEL keys “UP’ / ‘DN’ keys.
Selection sequences for the PAL N system:  DOWN or UP key:
  • AGC > VCO > SBT > SCT > RG > GG > BG > SC > PCR > PSL > PVS > PVA > PHS > HS > CDL
Selection sequences for the NTSC, PAL M system: DOWN or UP key:
  • AGC > VCO > SBT > SCT > RG > GG > BG > SC > STT > NCR > NSL > NVS > NVA > NHS > CDL
  • The VOLUME keys increase or decrease the adjustment values (stored in the non-volatile memory) when Adjustment Mode is cancelled.
  • Cancel the Adjustment Mode by re-pressing the ‘Factory’ or ‘Power Off’ keys.
OPTIONS
  • 0 à < TV/VIDEO MODE>
0 : TV/VIDEO 1 : VIDEO ONLY
  • 1 à < BLUE-SCREEN OPTION>
0 : BLUE-BACK ON 1 : BLUE-BACK OFF
  • 2 à <AUTO SOUND OPTION>
0 : AUTO SOUND OFF 1 : AUTO SOUND ON
  • 3 à < AUTO ON OPTION >
0 : AUTO POWER ON (LAST MEMORY
1 : DISABLE (STAND-BY)
  • 4 à < ZOOM MODE OPTION >
0 : CANCEL FUNCTION
1 : WHEN RF HAS NO MODULATION, PICTURE SIZE IS ENLARGED.
  • 5 à < INITIAL LANGUAGE OPTION >
0 : PORTUGUESE
1 : SPANISH

             Main Adjustment Parameter (SSM-174PT, TDA8841)
NOTE : Once a system (of PAL N/NTSCM, PALM System) is adjusted, another system is automatically adjusted. (NHS=PHS + HS)

FUNCTION
OSD ABBREVIATION
RANGE
INITIAL DATA
REMARK
AUTO GAIN CONTROL
AGC
0 ~ 63 STEP
05
FIX
VOLTAGE CONTROL OSCILLATOR

VCO

0 ~ 128 STEP

48

FIX
SUB BRIGHT
SBT
0 ~ 23 STEP
9

SUB CONTRAST
SCT
0 ~ 23 STEP
8

RED DRIVE GAIN
RG
0 ~ 63 STEP
25

GREEN DRIVE GAIN
GG
0 ~ 63 STEP
25






BLUE DRIVE GAIN
BG
0 ~ 63 STEP
25

PAL SUB COLOR
PCR
0 ~ 23 STEP
10
FIX
S-CORRECTION
SC
0 ~ 63 STEP
10

PAL VERTICAL SLOPE
PSL
0 ~ 63 STEP
34

PAL VERTICAL SHIFT
PVS
0 ~ 63 STEP
32

PAL VERTICAL AMPLITUDE
PVA
0 ~ 63 STEP
28

PAL HORIZONTAL SHIFT

PHS

0 ~ 63 STEP

42

HORIZONTAL SHIFT
HS
0 ~ 7 STEP
5

SUB TINT
STT
1 ~ 23 STEP
10

NTSC SUB COLOR
NCR
0 ~ 23 STEP
14

NTSC VERTICAL SLOPE

NSL

0 ~ 63 STEP

34

NTSC VERTICAL SHIFT

NVS

0 ~ 63 STEP
32

NTSC VERTICAL AMPLITUDE

NVA

0 ~ 63 STEP

28

NTSC HORIZONTAL SHIFT

NHS

0 ~ 63 STEP

47
Posted By: FRANK at 03:30
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