DOWNLOAD Sharp 32JF-77 (serv.man15) Service Manual ↓ Size: 6.53 MB | Pages: 96 in PDF or view online for FREE

Model
32JF-77 (serv.man15)
Pages
96
Size
6.53 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR
File
32jf-77-sm15.pdf
Date

Sharp 32JF-77 (serv.man15) Service Manual ▷ View online

5
32JF-77H
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CONTROLS & TERMINALS

   1   2    3    4    5    6    7    8    9
>
Front  TV
1. Main power button
2. Power indicator
3. Remote Control sensor
Behind the door
1. Volume Down button
2. Volume UP button
3. Channel Down button
4. Channel Up button
5. S-Video input terminal
6. VIDEO input terminal (PAL/NTSC)
7. AUDIO input terminal (left)
8. AUDIO input terminal (right)
9. Headphone jack (3.5mm/ 16 ~ 600 ohms)
Rear TV
21-pin In/Out
1. 21-pin Audio/Video (AV-2)
    With PAL/NTSC Video Input
2.
 
21-pin Audio/Video (AV-1)
    With PAL/NTSC Video Input /
    S-Video/ AV Link
3. 21-pin Euro SCART (RGB)
    With PAL/NTSC Video Input
Input
4. Aerial terminal
5. Digital Audio Input
6
32JF-77H
REMOTE CONTROL
TV
1. Stand-by button (TV)
Video
2. Power button (VCR)
TV
3. 0 ~ 9 digit buttons 
4. Flash back button
Teletext
5. GREEN button
6. RED button
TV
7. Volume DOWN button
8. MENU button
Teletext
9. REVEAL button
10. LIST button
11. STORE button
12. CANCEL button
13. HALF PAGE button
TV
14. RESET button
Video
15. Rewind/picture search reverse
16. Play button
17. Pause/Still button
18. Stop button
TV
19. TV/VIDEO button
20. Channel Call button
21. Single/Double entry button
Teletext
22. YELLOW button
23. BLUE button
TV
24. Channel UP button
25. Volume UP button
26. Channel DOWN button
27. Wide mode button
TV /Teletext
28. CLOCK button
TV
29. Sound mode button
Teletext
30. HOLD button
TV
31. Sound Mute button
Teletext
32. TEXT/MIX/PICTURE button
33. INDEX button
Video
34. Channel UP button (VCR)
35. Fast forward/picture search forward
36. Channel DOWN button (VCR)
37. Record button
1.
19.
23.
21.
24.
25.
26.
27.
28.
29.
30.
31.
32.
34.
37.
36.
35.
33.
22.
20.
4.
5.
6.
7.
8.
10.
11.
12.
13.
15.
18.
17.
16.
14.
9.
2.
3.
7
32JF-77H
ADJUSTMENT PROCEDURES
All adjustments to this chassis, except for focus, are carried out in the Service Mode.
••••• SERVICE MODE
The Service Mode is provided to enable the engineer to correctly set up the receiver to the CRT fitted in the set.
Note that the value of these adjustments may vary from one receiver to another.
To enter the Service Mode, carry out the following procedure.
1. Connect a test pattern to the antenna terminal.
2. Tune the receiver to this signal.
3. Turn the receiver off using the mains switch.
4. Press volume down and channel up buttons on the
    front of the receiver at the same time.
5. Keeping these buttons pressed, turn the mains on.
6. When the set starts up it will be in Service Mode, then the following
    On Screen Display appears:
7. Release the two buttons.
••••• Use the channel up and down buttons to move between the options.
••••• Use the volume control buttons to change the data.
••••• To store the data: use the Stand-by button(1) or Store button(11) on the remote control.
••••• To exit the Service Mode, turn the receiver off using the Main switch.
Note: In this Service Mode, by using the colour buttons of Remote Control is possible to pass directly to the adjustments
         that are indicated 
inside of 
each coloured box (see Figure 2), as follows.
Press the RED button to access to Geometry adjustments.
Press the GREEN button to access to NVM adjustments.
Press the YELLOW button to access to Automatic Gain Control adjustments.
Press the  BLUE button to access to CUT OFF adjustments.
Adjustment menu:
The following adjustments can be carried out in the Service Mode.
Figure 1
4
5
Figure 2
• Horizontal shift
• Horizontal size
• Pin phase
• Pin amplitude
• Upper corner correction
• Lower corner correction
• Extreme corner correction
• Vertical linearity
• Vertical angle
• Vertical bow
• Vertical size
• Vertical S-correction
• Vertical shift
• Cut RED
• Cut GREEN
• Cut BLUE
• Hot Cut RED
• Hot Cut GREEN
• Hot Cut BLUE
• Cold Cut RED
• Cold Cut GREEN
• Cold Cut BLUE
• Automatic Gain Control
• Subcarrier adjustment (ONLY PAL)
• NVM PAGE
• NVM POSITION
• NVM VALUE
RED
GREEN
YELLOW
BLUE
8
32JF-77H
The following geometry adjustments can be carried out.  Detailed instructions on how to execute these are given on the
following pages:
 Horizontal
• Horizontal shift
• Horizontal size
• Pin phase
• Pin amplitude
• Vertical angle
• Vertical bow
• Upper corner correction
• Lower corner correction
• Extreme corner correction
Just in case the TV set requires a full geometry adjustment, please proceed  first with Vertical according to the above
order, and after that,  adjust Horizontal according to the above  order.
Geometry Adjustments
Horizontal Shift
Adjust the Horizontal shift so that the picture is centred.
The effect of this adjustment is shown in figure 3.
• When the volume up button is pressed, the picture moves to the left.
• When the volume down button is pressed, the picture moves to the right.
• Press the stand-by button on the remote control to store.
Horizontal size
Adjust the Horizontal size so that 8% over-scan is achieved.
The effect of this adjustment is shown in figure 4.
• When the volume up button is pressed, horizontal scanning increases.
• When the volume down button is pressed, horizontal scanning decreases.
• Press the stand-by button on the remote control to store.
Pin phase
Adjust the Pin phase so that the picture is symmetrical top and bottom.
The effect of this adjustment is shown in figure 5.
• When the volume up button is pressed, side pincushion changes.
• When the volume down button is pressed, side pincushion changes.
• Press the stand-by button on the remote control to store.
Pin amplitude
Adjust the Pin amplitude so that the picture is centred.
The effect of this adjustment is shown in figure 6.
• When the volume up button is pressed, side pincushion changes
   from pincushion to barrel shape.
Figure 3
Figure 4
Figure 5
Figure 6
Vertical
• Vertical size
• Vertical S-correction
• Vertical shift
• Vertical linearity
Page of 96
Display

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