Sony KLV-32V300A / KLV-40V300A / KLV-46V300A Service Manual ▷ View online
– 4 –
KLV-32/40/46V300A
RM-GA008
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.
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.
CAUTION
example 1
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 :
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.
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 –
KLV-32/40/46V300A
RM-GA008
SELF DIAGNOSTIC FUNCTION
Control Buttons
Description of LED Indictors
LED
LED Descriptions
Lighting Spec Overviews
Green Lights at power ON.
STANDBY LED
Red: One LED
Lights during standby.
Timer/Picture
OFF
OFF
Red/Green:
two LEDS
two LEDS
Amber Lights during Timer activation.
Green Lights during Picture OFF.
Green Lights during Picture OFF.
Power
Green: LED
REMOTE
SENSOR
SENSOR
MENU TV/VIDEO
VOLUME
CHANNEL
POWER
PICTURE OFF/
TIMER INDICATOR
TIMER INDICATOR
LIGHT
SENSOR
SENSOR
STANDBY
INDICATOR
INDICATOR
POWER
INDICATOR
INDICATOR
LED display control
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.
Failure
Off
Red flashes
Classify the trouble causes by the number of
Red blinking (see descriptions below)
Red blinking (see descriptions below)
(*1) This status is no more described here for various statuses are detected with only three LED.
– 6 –
KLV-32/40/46V300A
RM-GA008
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
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
MONITORING ITEMS
NUMBER OF STANDBY LED
POSSIBLE CAUSE / DETECTED SYMPTOMS
(RED) BLINKING TIMES
DC_DET
2
• Power Supply voltage error
DC_ALERT 1
3
• Confirm, which the voltage 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.
DC_ALERT 2
4
DC_ALERT 3
5
• Confirm, the voltage of REG12V is about 12V.
• If no voltage is on REG12V, Confirm R3031, R3034,
• 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.
Backlight
6
• Confirm, about D3. 3 input to Q4014/Q4015.
• If 6 times, change backlight-board.
• If 6 times, change backlight-board.
Temperature
7
• Confirm, heat sink and heat sheet adhere to IC4500.
• If set isn’t shutdown, BH-board temp-trouble.
• If set isn’t shutdown, BH-board temp-trouble.
Audio
8
• 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.
HFR
9
• Trouble-Info from BH-board-ICbus.
DFE
10
• No communication from FE-IC.
B_ENGINE
11
• No communication from Trident-bus.
*Each of the above blinking is repeated every 2 seconds
Failure LED Displays
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.
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
– 7 –
KLV-32/40/46V300A
RM-GA008
1-1. REAR COVER REMOVAL
(a) KLV-32V300A
SECTION 1
DISASSEMBLY
(b) KLV-40V300A
4
Lift to remove Rear Cover
3
Four screws
(+PSW 5 X 16)
1
Fifteen screws
(BVTP2 4 X 16)
2
Three screws
(+BVTP 3 X 12)
3
Three screws
(+BVTP 3 X 12)
4
Lift to remove Rear Cover
1
Fourteen screws
(+BVTP2 4 X 16)
2
Two screws
(+PSW 5 X 16)
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