Sharp 37DT Service Manual page 10

37DM-23SC
53 OSDWORD 1 :
54
RED REFERENCE FOR AUTO BKGD ADJUSTMENT
55 GREEN REFERENCE FOR AUTO BKGD ADJUSTMENT
BLUE REFERENCE FOR AUTO BKGD ADJUSTMENT
56
57 CONTROL2: OSO, VSD, CB, BLS, BKS, CS1, CSO, BB
58 CONTROL3: HOB, BPS, ACL, CMB, AST, CL2, CL1, CLO
VERTICAL ZOOM
59
5A VERTIVAL SCROLL
5B CONTROL0: INA, INB, INC, CCC-D, FOA, FOB, XA, XB
5C CONTROL,-!: FORF, FORS, DL, STB, POC, CM2, CM1, CMO
5D CONTROL5: EVG, HCO, LBM, VID, STM, NCIN, VIM, AKB
5E CONTROL6: IFS, AFW, IE1, COR, RBL, MAT, PRD, SBL
5F CONTROL7: EVSINC, EBS, FFI, HBL, GAI, IE2, DS, DSA
NOT USED
60
61-FF PROGRAMS (0-52)
100-18Dh PROGRAMS (53-99)
PIF/AGC Adjustment
1 . VCO + AFT Adjustment
1 . Connect the output of SSG (Standard Signal Gen-
erator) to the tuner IF output terminal.
• SSG output: 38.9 MHz (CW) ±5 kHz).
• SSG output level: approx. 90 dB^iV.
2. Enter into Service Mode.
3. Push CH A until AFT appears.
4. Press 0-n button on R/C. Setting is made automati-
cally. During this setting the colour bar shall go from
red to yellow. When setting is finished, colour bar
disappears and B-STOP (bus stop) is shown on
screen.
5. Switch set OFF and ON again, setting is now memo-
rized.
2. RF-AGC Cut-in Adjustment (I2C BUS)
1 . Receive the "COLOUR BAR" signal (Channel E-12).
• Signal strength: 60 dB|AV.
2. Enter into Service Mode.
3. Push CH A until AGC appears.
4. Press On button on R/C. Setting is made automati-
cally. During this setting the colour bar shall go from
red to yellow. When setting is finished, colour bar
disappears and B-STOP (bus stop) is shown on
screen.
5. Switch set OFF and ON again, setting is now memo-
rized.
BIT 0:OSD PROG SIZE.
BIT 1 :OSD PROG DISPLAYED TIME.
0=SHORT TIME /
Screen Adjustment
3. Focus Adjustment
1 . Apply mains voltage of 220 V AC/50 Hz to TV.
2. Receive Phillips pattern signal to a level between 60
3. Set contrast to 10/10, brightness to 5/10 and colour
4. Adjust focus potentiometer to obtain maximum defi-
4. G2 Adjustment
1 . Apply mains voltage of 220 V AC/50 Hz to TV.
2. Receive MONOSCOPE PATTERN signal to a level
3. Enter into Service Mode. Press the TEXT key of R/C
4. Set to the point where the raster disappears on the
8
0= LARGE
(14")
1=SHORT
(21-)
1 = LONG TIME
VALUE= 9AH
VALUE= 24H
APPROX. VALUE-ODH
APPROX. VALUE= 20H
VALUE=1AH
VALUE=COH
VALUE=26H
VALUE=3CH
VALUE=OOH
and 80 dBj^V.
0/10.
nition.
between 60 and 80 dB^V.
and set to level.
screen VR of FBT.