Samsung CS-29, CS-30, CS-25 Alignment and Adjustments

Alignment and Adjustments

4. Alignment and Adjustments

4-1 Preadjustment

4-1-1 Factory Mode

1.Do not attempt these adjustments in the Video Mode.

2.The Factory Mode adjustments are necessary when either the EEPROM (IC902) or the CRT is replaced.

3.Do not tamper with the “Adjustment” screen of the Factory Mode menu. This screen is intended only for factory use.

4-1-3 When CRT Is Replaced

1.Make the following adjustments AFTER setting up after setting up purity and convergence :

White Balance Sub-Brightness, Sub-Contrast Vertical Center

Vertical Size Horizontal Size

Fail Safe (This adjustment must be the last step).

4-1-2 When EEPROM (IC902) Is Replaced

1.When IC902 is replaced all adjustment data revert to initial values. It is necessary to re-program this data.

2.After IC902 is replaced, warm up the TV for 10 seconds.

4-2 Factory/Service Mode

4-2-1 Procedure for the “Adjustment” Mode

1.This mode uses the standard remote control. The Service Mode is activated by entering the following remote-control sequence :

(1)STAND-BY→ DISPLAY→ MENU→ MUTE →POWER ON.

2.The “SERVICE (FACTORY)” message will be displayed. The Service Mode has four components: Adjustment, Test Pattern, Option Bytes and Reset.

3.Access the Adjustment Mode by pressing the “VOLUME” keys ( Up or Down). The adjustment parameters are listed in the accompanying table, and selected by pressing the CHANNEL keys (▲ ,▼).

4.Selection sequences for the PAL/NTSC system:

DOWN or UP key:

AGC↔VCO↔SBT↔SCT↔SCR↔SC↔RG↔ BG↔CDL↔STT↔PDL↔VOL↔PSL↔PVS↔ PVA↔PHS↔PEW↔PEP↔PEC↔PET↔VSC↔ TSC↔SA↔QEW↔PCT↔PTT↔PHM↔PVP↔ NVP↔PHP↔NSR↔FFI↔AGC.

5.The VOLUME keys increase or decrease the adjustment values (stored in the

non-volatile memory) when Adjustment Mode is cancelled.

6.Cancel the Adjustment Mode by re-pressing the “HIDDEN” or “Power OFF/ON” keys.

Samsung Electronics

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Alignment and Adjustments

4-2-2 Main Adjustment Parameters

OSD		FUNCTION	RANGE
AGC	AUTO GAIN CONTROL		0	~ 63
VC O	VOLTAGE CONTROLLED OSCILLATOR		0	~127
SBT	SUB BRIGHT		0	~ 23
SCT	SUB CONTRAST		0	~ 23
SC R	SUB COLOR		0	~ 23
SC	S-CORRECTION		0	~ 63
RG	RED DRIVE GAIN		0	~ 63
BG	BLUE DRIVE GAIN		0	~ 63
C DL	CATHODE DRIVE LEVEL		0 ~		7
STT	SUB TINT		0	~ 13
PDL	PAL DELAYTIME		0	~ 15
VOL	VOLUME LEVEL		0	~100
PSL	PAL VERTICAL SLOP		0	~ 63
PVS	PAL VERTICAL SHIFT		0	~ 63
PVA	PAL VERTICAL AMPLITUDE		0	~ 63
P HS	PAL HORIZONTAL SHIFT		0	~ 63
P EW	PAL EW-WIDTH		0	~ 63
PEP	PAL EW-PARABOLA		0	~ 63
P E C	PAL EW-CORNER PARABOLA		0	~ 63
PET	PAL EW-TRAPEZIUM		0	~ 63
VSC	VERTICAL SCROLL		0	~ 63
TSC	TTX SUB CONTRAST		0	~ 63
SA	SEPARATION ADJUSTMENT		0	~ 14
QEW	Q EW-WIDTH		0	~ 15
PCT	PIP CONTRAST		0	~ 15
PTT	PIP	TINT	0	~	63
P HM	PIP HORIZENTAL MOVE		0	~ 15
PVP	PIP	PAL VERTICAL POSITION	0 ~63
NVP	PIP	NTSC VERTICAL POSITION	0	~ 63
P HP	PIP HORIZENTAL POSITION		0	~ 63
NSR	NTSC SUB COLOR		0	~ 23
FFI	FAST FILTER IF-PLL		0	~	1

4-2	Samsung Electronics

Alignment and Adjustments

FACTORY MODE VALUE

OSD	INITIAL	OSD	INITIAL		OSD	INITIAL
2 (C H )		P D L	0	(F IXE D )	TSC	40
AG C	18 (F IXE D )	V O L	25	(F IXE D )	SA	2 5(F IX E D )
V C O	80 (F IXE D )	P S L	31	(F IXE D )	Q E W	5
SBT	7	P V S		31	PCT	7(F IX E D )
SCT	16	P V A		31	PTT	3 1(F IX E D )
S C R	5 (F IXE D )	P H S		40	P H M	8(F IX E D )
SC	11 (F IXE D )	P E W		38	P VP	3 1(F IX E D )
RG	31	P E P		22	NVP	3 1(F IX E D )
BG	31	P E C		22	P H P	4 2(F IX E D )
C D L	7 (F IXE D )	PET		30	NSR	3(F IX E D )
STT	10 (F IXE D )	V SC	31	(F IXE D )	FFI	1:INDIA,0:OTHERS

4-2-3 Test Pattern

1.This mode can be used during servicing, or for confirming that the convergence and purity adjustments are correct.

2.Access the Test Pattern parameters by pressing a CHANNEL keys (▲ ,▼) while the Service Mode is on. The cursor will move to the test pattern. Press the VOLUME keys. On-screen display:

•RED

•GREEN

•BLUE

•WHITE

3.AGING Mode (Reference Only)

This pattern is used for pre-heating the CRT during manufacturing--it is accessed in the factory by twice pressing the “HIDDEN “ key.

Even if the TV power is cut off, the Aging Mode is not cancelled, The AGING mode is cancelled by repressing the “HIDDEN” or any key on the front pannel.

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