SHARP 21HFG5RU
Service Manual

HORIZONTAL, VERTICAL, DEFLECTION LOOP and FOCUS SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST (1 ) ADJUSTMENT

No. point Adjustment condition/procedure Waveform or others No. point Adjustment condition/procedure Waveform or others

H-SHIFT 1) Receive Monoscope Pattern Signal (PAL 50 Hz) 1 SCREEN 1) In window pattern signal condition. Note 1:
2

(I C BUS R-CUTOFF(R-C)UP RC key "1"(HEX 80) ADJUSTMENT 2) Go to service mode, then select V00.
A B (to be done to spec of A=B (as attach drawing) G-CUTOFF(G-C)UP RC key "2"(HEX 40)

2

2) Choose the service data V13. CONTROL) 3) Adjust the V13 bus data to have a balance position (I C BUS 3) By pressing R/C S-Mute(Hex E8), R-D auto R-CUTOFF(R-C)DOWN RC key "4"(HEX 20)

CONTROL) B-D to 63, R-C auto switch after purity 4) If cannot make it to A=B, adjust from the best point G-C 127, B-C auto switch to G-CUTOFF(G-C)DOWN RC key "5"(HEX A0) adj) so that B slightly smaller than A. 127, Sub-Brightness V06 auto switch to 127. B-CUTOFF(B-C)UP RC key "3"(HEX C0) off condition. R-DRIVE(R-D)UP RC key "7"(HEX E0)

B-CUTOFF(B-C)DOWN RC key "6"(HEX 60) Y-mute & Vertical off, screen will be in vertical cut-

2 V-SHIFT 1) Receive Monoscope Pattern Signal (PAL 50 Hz) A B 4) Adjust the Screen so that cut-off line appear in low R-DRIVE(R-D)DOWN RC key

bright, 2) Choose the service data V12. then judge that whether the cut-off line2 appear(I "Flashback"(HEXC E4)BUS CONTROL) 3) Adjust V12 bus data to have a most acceptable Red Green or Blue colour, in this condition B-DRIVE(B-D)UP RC key "8"(HEX 10) (to be done vertical position, the monoscope pattern should B-DRIVE(B-D)DOWN RC key "0"(HEX 50) between R-C G-C & B-C, fix data of the colour after purity be Balance in vertical position. appear in cut-off line and adj the other two cutadj) Note: B line (monoscope middle line) must off data(Note1) so that cut-off line colour become OK NG

same or nearest higher position to A white. mark (tube middle mark) refer to attach drawing.

3 V-SIZE 1) Receive Monoscope Pattern Signal (PAL 50 Hz)

(I C BUS 2) Choose the service data V11.

5)Turn the screen VR of FBT so that cut-off line just disappear and use R/C by pressing key S-Mute (Hex E8) to disable the Y-mute & V-cut so that picture appear in normal mode. 2

CONTROL) 3) Adjust V11 bus data until the overscan become (to be done 10 ± 1.5 % WINDOW PATTERN SIGNAL WHITE BALafter purity, Caution1: Pls aging TV more than 10 minutes V-shift adj) before adjustment.

1) WHITE (HIGH BEAM) ( In Window Pattern Signal)
White Dark Caution2: for H-shift V-shift & V-size adj, after

2

adj pls switch to Monoscope pattern

signal (NTSC 60 Hz) to confirm all positions are the same.
5.5% 50% 9.5% IRE

11
11-1 11-2

ANCE ADJ First use Minolta Colour Analyzer CA100, let the gun (to be done point at Dark White position ( as drawing attach), after screen Adj V06 until LUMINANCE Y become 5 cd/m2, then White adj) let the gun point at White position ( as drawing (I C BUS attach), Adj V04 until LUMINANCE Y become 200 2 CONTROL) cd/m2. Adj R-D & B-D until the axis of colour

SHARPNESS Signal using W/B Pattern

4 SUB*Note : Focus 1) Receive the "Monoscope Pattern" signal.

temperature become. 1) Confirm Service data V08 is 43. ** X=300, Y=310 7500 K

5 equivalent.

2) Press R/C to set Picture NORMAL condition.

temperature shift away from the data adjusted Window Pattern Signal output 3) Adjust focus control to get the best focusing. in step 1, adjust R-C,G-C & B-C but between them, level are as above. first colour appears in Screen adj item 1)-4 is fixed, adj other two so that to obtain the similar axis as above. **Repeat steps 1 & 2 to get a regulated position.

Generator SX-1006 (IWATSU) or 2) DARK WHITE (LOW BEAM) (In Window Pattern Signal) Let gun point at Dark White position, if the colour

21H-FG5RU