13
21HS-50N
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
MSP34x5G
80
5
Multistandard Sound Processor
IC3001
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).
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
Table Error LED blinking times
Содержание 21HS-50N
Страница 12: ...12 21HS 50N CHASSIS LAYOUT Mother unit CRT unit ...
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Страница 28: ...28 21HS 50N Page 29 1 I H G F E D C B A 2 3 4 5 6 7 SCHEMATIC DIAGRAM OF MOTHER UNIT F7340N6 00 Version ...
Страница 30: ...30 21HS 50N SCHEMATIC DIAGRAM OF MOTHER UNIT F7340N6 00 Version 8 9 10 11 12 13 14 I H G F E D C B A Page 29 ...
Страница 31: ...31 21HS 50N SCHEMATIC DIAGRAM OF CRT F7341N0 00 Version 1 I H G F E D C B A 2 3 4 5 6 7 ...
Страница 32: ...32 21HS 50N CRT UNIT BLOCK DIAGRAM 1 I H G F E D C B A 2 3 4 5 6 7 ...
Страница 33: ...33 21HS 50N MOTHER UNIT BLOCK DIAGRAM 1 I H G F E D C B A 2 3 4 5 6 7 ...
Страница 43: ...43 21HS 50N NOTES ...
