Adjustment And Repair Procedures - Sanyo CE29FFV2-F Service Manual

17 Adjustment and repair procedures

ADJUSTMEN SIGNAL
T
Power supply Philips pattern Picture: Normalised
Sound: Minimum volume
AGC. UHF Band - mid Aerial signal level: 60dBuV (1mVrms)
channel (e.g.CH25)
Sound IF Any picture
Vertical slope Philips pattern Picture: Normalised
Vertical centre Philips pattern Picture: Normalised
Vertical size Philips pattern Picture: Normalised
Horizontal centre Philips pattern Picture: Normalised
Width (90º) Philips pattern Picture: Normalised
Width (110º) Philips pattern Picture: Normalised
Pin Cushion Philips pattern Picture: Normalised
(110º)
Corner Pin Philips pattern Picture: Normalised
Cushion (110º)
Trapezium (110º) Philips pattern Picture: Normalised
G2 Philips pattern Before SERVICE/G2/BRI must be:
32 en CRTs Philips A59/A66EAK071X11
0 en CRTs Philips A51EAL155X10/X11
White point Philips pattern Picture: Normalised
Focus Philips pattern Picture: Normalised
TXT centre Philips pattern Picture: Normalised
Common condition to all adjustments (except AGC): The aerial signal level must be acceptable (the picture doesn't present snow degradation)
17.1 Notes about the adjustment:
Normalised: Factory picture control normal has the following OSD positions:
•
Brightness: 32 (Push key "+" 32 times starting at minimum position)
•
Contrast: 58
•
Colour: 30
CONDITIONS TEST POINTS
B1
Cathode D850
Pin 1 of TU250
(AGC)
Pin 5 of IC1350
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
ADJUSTMENT POINT
VR800 Adjust to obtain:
150V ± 0.5V in CRTs Philips A59/A66EAK071X11 if C651 = 12 nF
148V ± 0.5V in CRTs Philips A59/A66EAK071X11 if C651 = 11 nF
148V ± 0.5V in CRTs Videocolor A59/A66EHJ43X38
150V ± 0.5V in CRTs Panasonic A59/A66ECF50X05
118V ± 0.5V in CRTs Philips A51EAL155X10/X11
SERVICE/VIF/AGC Adjust to obtain 3,3V ±0,2V
L1351 Adjust to obtain 2,3V ±0,15V
SERVICE/GEOMETRY/VERT SLOPE Adjust to achieve that the centre line of the Philips pattern matches the
beginning of the service blanking
SERVICE/GEOMETRY/VERT SHIFT Adjust to centre the picture in vertical direction
SERVICE/ GEOMETRY/VERT AMPLIT Adjust just to get the checked board hidden
SERVICE/ GEOMETRY/HOR SHIFT Adjust to centre the picture in horizontal direction
L653 Adjust just to get the checked board hidden
SERVICE/ GEOMETRY/EW AMPLIT Adjust just to get the checked board hidden
SERVICE/ GEOMETRY/PARABOLA Adjust to correct the pin cushion distortion in the way that vertical lateral
lines become straight
SERVICE/ GEOMETRY/CORNER Adjust to correct the pin cushion distortion in the corner in the way that
PAR vertical lateral lines become straight
SERVICE/ GEOMETRY/TRAPEZIUM Adjust to obtain the lateral vertical lines parallel
SERVICE/G2/ADJ Adjust just to see the service line
SCREEN potentiometer
SERVICE/WHITE/GREEN Adjust to obtain a white tone acceptable
SERVICE/WHITE/RED
FOCUS potentiometer Adjust to obtain the best possible focusing in the centre of screen
SERVICE/MORE/CENTR TXT Adjust to centre the OSD in the screen
10
Service Manual MS CE25FV2-E
ADJUSTMENT PROCEDURE INSTRUMENTS
Voltmeter DC
Resolution >0,1V
Voltmeter DC
Resolution >0,1V
Voltmeter DC
Resolution >0,1V
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment
Visual adjustment