DOWNLOAD Sharp 21HT-15 (serv.man3) Service Manual ↓ Size: 2.91 MB | Pages: 5 in PDF or view online for FREE

Model
21HT-15 (serv.man3)
Pages
5 Few pages! See other manuals at the bottom of the first or last page.
Size
2.91 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR / Part 2 - PWB assemblies (13-17)
File
21ht-15-sm3.pdf
Date

Sharp 21HT-15 (serv.man3) Service Manual ▷ View online

13
21HT-15H
LED FLASHING CODE
IC/Module Name
Slave Address
Bus Error LED
Remarks
Ref. No.
Blinking Time
M24C04
A0,A2
2
512x8 EEPROM
IC1002
TDA935x/6x/8x
8A
3
Address of internal TV processor
IC801
VTST6HD64 or
C0
6
PLL Tuner
TU201
CTF551
C0
6
      PURPOSE:                        The led indicates the power mode,ocurred I
2
C error and On timer
INPUT:
- Current power mode
- I
2
C Errors
- On timer
Processing:
- If in STANDBY mode and On timer in-active then switch LED off.
- If in STANDBY and On timer active
     set LED to blinking, (switch on and off at 1 Hz with a 50 % duty cycle).
- If in POWER-ON mode, switch LED on.
- If an I
2
C error occurred, let the LED blink at 1 Hz, 50 % duty cycle.
  For the blinking times see the Table below.
Note:
Only when an I
2
C error occurs for a number of times, or for a number of seconds,
the I
2
C error is handled by the system (that is ,only then the set will go to standby,
the led starts blinking).
Table Error LED blinking times
F 7341N0 PRINTED WIRING BOARD. Components side.
0
1
2
3
4
5
6
Y
X
10
1
2
3
4
5
6
7
8
9
14
21HT-15H
F 7340N4 PRINTED WIRING BOARD. Components side.
Page 15
22
23
24
25
17
18
19
20
21
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
Y
X
0
10
11
12
13
1
2
3
4
5
6
7
8
9
15
21HT-15H
F 7340N4 PRINTED WIRING BOARD. Components side.
Y
X
22
23
24
25
17
18
19
20
21
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
20
21
22
23
24
25
12
13
14
15
16
17
18
19
Page 14
16
21HT-15H
F 7340N4 PRINTED WIRING BOARD. Copper side.
Page 17
X
22
23
24
25
17
18
19
20
21
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
Y
19
18
17
16
15
14
13
12
25
24
23
22
21
20
Page of 5
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Sharp 21HT-15 (serv.man3) Service Manual ▷ Download

  • DOWNLOAD Sharp 21HT-15 (serv.man3) Service Manual ↓ Size: 2.91 MB | Pages: 5 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp 21HT-15 (serv.man3) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp 21HT-15 (serv.man3) CTR. Information contained in Sharp 21HT-15 (serv.man3) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.