Sanyo CE14A2-C Service Manual page 37

Service manual
5.2 Adjustments.
ADJUSTME SIGNAL CONDITIONS
NT
Power supply Philips Picture: Normalised
pattern Sound: Minimum volume
A.G.C. UHF Band – Aerial signal level: 60dBuV
mid channel (1mVrms)
(e.g. 25)
G2 Philips SERVICE/G2/BRI:
pattern 50
A34EAC01X06
Focus Philips Picture: Normalised
pattern
Vertical slope Philips Picture: Normalised
pattern
Vertical Philips Picture: Normalised
centre pattern
Height Philips Picture: Normalised
pattern
Horizontal Philips Picture: Normalised
centre pattern
Width Philips Picture: Normalised
pattern
White point Philips Picture: Normalised
pattern
TXT centre Philips Picture: Normalised
pattern
Common condition to all adjustments (except AGC): The aerial signal level must be acceptable (the picture doesn't present snow degradation).
Width adjustment, H.AMPL, lacks effect whenever the circuit of adjustment is not mounted, which is optional, according to it has been indicated previously.
TEST POINT
B1
Cathode D850
Pin 1 of TU250
(AGC)
CRT Screen
for Philips CRT
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
CRT Screen
ADJUSTMENT POINT ADJUSTMENT PROCEDURE
VR800 Adjust to obtain:
106,5V
A34EAC01X06
SERVICE/VIF/AGC
Adjust to obtain 3,0±0,5V
SERVICE/G2/ADJ Adjust just to see the service line
SCREEN Potentiometer
FOCUS Potentiometer Adjust to obtain the best possible focusing in
lateral of screen.
SERVICE/GEOMET>/V.SL Adjust to achieve that the centre horizontal
OPE line matches the beginning of the service
blanking.
SERVICE/GEOMET>/V.S Adjust to centre the picture in vertical
HIFT direction
SERVICE/ Adjust just to get the checked board hidden.
GEOMET>/V.AMPL
SERVICE/ Adjust to centre the picture in horizontal
GEOMET>/H.SHIFT direction.
SERVICE/ Adjust just to get the checked board hidden.
GEOMET>/H.AMPL
SERVICE/WHITE/G Adjust to obtain a white tone acceptable.
SERVICE/WHITE/B
SERVICE/GEOMETCENT Adjust to centre the OSD in the screen.
R TXT
22
CHASSIS 2112-Series EC7-A
±
0.5V in CRTs Philips
INSTRUMEN
T
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