KLV-S15G10, KLV-S20G10 - Sony TV Service Manual (repair manual). Page 6

KLV-S15G10/S20G10 (UC/WB)     1-1E

CONTROL BUTTON

(3)    VOLUME

(1) FREEZE

(6) POWER LED

(7) TIMER LED

(8) Infrared Receiver

(2) TV/VIDEO

LED INDICATOR

(5) POWER

(4)     CHANNEL

<LED Indication>

Remarks

Microcomputer is in the sleep mode.

Microcomputer is working normally.

Microcomputer is working normally.

Causes of failures are classified by the number of red LED blinking times.
(See the table below.)
Aging time is classified by blinking of the green LED. (See the table below.)

Status

Power off
Power on
Off-timer off
Power on
Off-timer on

Failure

Aging

Main power LED

Off

On (green)

On (green)

Off

Blink (green)

Standby/Off-timer LED

Off

Off

On (red)

Blink (red)

Off

•

When safety shutdown occurs, causes of failures (faulty locations) can be identified by the number of LED blinking times.

•

Since there are many monitoring items, identify faulty locations by the number of LED blinking times as shown in the table below.

< Failures Classified by the Number of LED Blinking Times >

Items monitored

Classification of failures

Number of red LED blinking times

Malfunction of TRIDENT circuit

Failure of scaler

8

Malfunction of backlight

Failure of panel

4

Panel temperature rise

Abnormal temperature of main unit

7

Abnormal voltage of A board

Failure of power supply

2

Abnormal voltage of B board

Failure of power supply

3

Abnormal voltage of main power line

Failure of power supply

5