Sharp 21HS-50H Service Manual - Page 13
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PURPOSE:
INPUT:
Processing:
Note:
IC/Module Name
Slave Address
M24C04
TDA935x/6x/8x
VTST6HD64 or
CTF551
MSP34x5G
Table Error LED blinking times
F 7341N0 PRINTED WIRING BOARD. Components side.
6
5
4
3
2
1
Y
0
X
LED FLASHING CODE
The led indicates the power mode,ocurred I
- Current power mode
- I
2
C Errors
- On timer
- 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.
2
- If an I
C error occurred, let the LED blink at 1 Hz, 50 % duty cycle.
For the blinking times see the Table below.
2
Only when an I
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).
Bus Error LED Remarks
Blinking Time
A0,A2
2
8A
3
C0
6
C0
6
80
5
1
2
3
4
13
2
C error and On timer
512x8 EEPROM
Address of internal TV processor
PLL Tuner
Multistandard Sound Processor
5
6
7
8
21HS-50H
Ref. No.
IC1002
IC801
TU201
IC3001
9
10