SHARP 21HT16C
Manual de Servicio

21HT-15C 21HT-16C

LED FLASHING CODE
PURPOSE: The led indicates the power mode, occurred I2C error and On timer

INPUT:

Current power mode - I2C Errors - On timer

Processing: - If in STANDBY mode and On timer inactive 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 I2C error occurred, let the LED blink at 1 Hz, 50 % duty cycle. For the blinking times see the Table below.

Note: Only when an I2C error occurs for a number of times, or for a number of seconds, the I 2C error is handled by the system (that is ,only then the set will go to standby, the led starts blinking).

IC/Module Name

Slave Address

Bus Error LED Remarks Blinking Time 2 3 6 6 512x8 EEPROM,1024x8 EEPROM Address of internal TV processor PLL Tuner

Ref. No.

M24C04, M24C08 TDA935x/6x/8x VTST6HD64 or CTF551 Table Error LED blinking times

A0,A2 8A C0 C0

IC1002 IC801 TU201

PRINTED WIRING BOARDS
F 7341N0 PWB. Components side.
6

5

4

3

2

1 Y 0 X 1 2 3 4 5 6 7 8 9 10

15