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– 4 –

The circuit boards used in these models have been processed using
Lead Free Solder. The boards are identified by the LF logo located
close to the board designation e.g. U1 etc [ see example ]. The
servicing of these boards requires special precautions to be taken as
outlined below.

It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints.
Lead Free Solder is available under the following part numbers :

Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees
centigrade. This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery
characteristics.

For more information on the use of Lead Free Solder, please refer to http://www.sony-training.com

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– 5 –

Green Lights at power ON. 
Red Lights during REC. Amber Lights during 
Timer Recording. Aging-failure notice.

STANDBY LED

Red: One LED

Lights during standby. Aging-failure notice.

Timer/Picture
OFF/
Communication
LED

Red/Green:
Two LEDS

Red Lights during Timer activation. Amber Lights 
during Picture OFF. Amber Lights during 
communication. Communication LED is 
controlled by a main-micro.

Power/REC/
Timer REC LED

Green:
One LED

PICTURE OFF/TIMER

LIGHT SENSOR

STANDBY

POWER

REMOTE SENSOR

MENU TV/VIDEO

VOLUME

CHANNEL

POWER

STATUS

POWER LED

STANDBY LED

NOTES

Power On

Green Lights

Off

Microcomputer is in a normal state. (*1)

Standby

Off

Red Lights

Microcomputer is in a Sleep state.

Aging

Green flashes

Off

Classify the aging time by the green-blinking 
patterns (see descriptions below)

Failure

Off

Red flashes

Classify the trouble causes by the number of 
Red blinking (see descriptions below)

(*1) This status is no more described here for various statuses are detected with only three LED.

– 6 –

When safety shutdown occurs, LED display reports the cause by using the Lighting patterns as indicated below. Since there are
various failure items in WAX model. Light blinking is used so that shutdown causes can be judged from the number of blinking times.
The items corresponding to the number of blinking times are indicated as follows

Example : The figure above shows a LED display when SHUTDOWN is caused by an DC. Alert 2. It repeats flashing for a

specified number of times in 0.3 sec/cycle, has a 2 seconds interval of lighting-off, and again repeats flashing for the
same number of times. Please note that a 2 seconds interval of lighting-off is fixed regardless of abnormal state types.

2.0 sec

2.0 sec

0.3 sec

0.3 sec

2 times

Main voltage trouble (REG12V)

•

 Power supply voltage error.

3 times

DC_ALERT 1 (D.3.3V)

•

 Confirm the voltage if the right voltage doesn’t appear

  about D3. 3V,VDDMQO(=2.5V)

•

 If it is D3. 3V,VDDMQO(=2.5V), confirm about 3.3V input

  IC7001 5th Pin and F7000 is not open.

•

 If it is VD1.8V, confirm about 3.3V input IC7002 5th Pin

  and F7000 is not open.

•

 If it is VD1.8V, confirm about 3.3V input IC7000 12th Pin

  and PS7000 is not open.

4 times

DC_ALERT 2 (FE3.3V)

5 times

DC_ALERT 3 (PANEL 12V)

•

 Confirm, the voltage of REG12V is about 12V.

•

 If no voltage is on REG12V, Confirm R3031, R3034,

  R3037 is mounted.

•

 If no voltage is on REG12V, Confirm REG12V is short-

  circuits in GND.

•

 If REG12V is not short-circuits in GND, change PWB to

  new one.

6 times

BackLight trouble (PANE_DET=0V)

•

 Confirm, about D3. 3 input to Q4014/Q4015.

•

 If 6 times, change backlight-board.

– 7 –

When AGING_TIMER > 0

Green (0.5 Sec) 

t Off (0.5 sec) t Green (0.5 sec) t Off (0.5 sec)

When AGING_TIMER = 0

Green (3.0 sec) 

t Off (3.0 sec) t Green (3.0 sec) t Off (3.0 sec)

7 times

Set-Temperature trouble

•

 Confirm, heat sink and heat sheet adhere to IC4500.

•

 If set isn’t shutdown, BH-board temp-trouble.

8 times

Audio trouble (AU_PROT)

•

 Confirm, the right voltage appears about D3. 3V,

  VDDMQO(=2.5V), VD1_8, D5V.

•

 If the output voltage is right, confirm whether X4500 does

  an oscillation definitely.

•

 Change IC4500 to new one.

9 times

FAN trouble

•

 Trouble-Info from BH-board-ICbus.

10 times

Digital-FE trouble

•

 No communication from FE-IC.

11 times

Trident trouble

•

 No communication from Trident-bus.

12 times

HFR trouble

•

 BH-board communication error/Voltage trouble in BH

  board.

13 times

Balancer-board trouble

•

 Confirm, about D3. 3 input to Q4014/Q4015.

(PANEL_DET=1.6V)

•

 If 13 times, change Balancer-board.