Sony KLV-32V200A / KLV-40V200A / KLV-46V200A (serv.man4) Service Manual ▷ View online
– 3 –
KLV-32V200A/40V200A/46V200A
RM-GA005
WARNING!!
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
!
ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS
AND IN THE PARTS LIST ARE CRITICAL FOR SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL FOR SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE
PROCEDURES WHENEVER CRITICAL COMPONENTS
ARE REPLACED OR IMPROPER OPERATION IS
SUSPECTED.
AND IN THE PARTS LIST ARE CRITICAL FOR SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL FOR SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE
PROCEDURES WHENEVER CRITICAL COMPONENTS
ARE REPLACED OR IMPROPER OPERATION IS
SUSPECTED.
USE CAUTION WHEN HANDLING THE LCD PANEL
When installing the LCD panel, be sure you are grounded by using
a wrist band.
When installing the LCD panel on the wall, the LCD panel must be
secured using the 4 mounting holes on the rear cover.
a wrist band.
When installing the LCD panel on the wall, the LCD panel must be
secured using the 4 mounting holes on the rear cover.
1). do not press on the panel or frame edge to avoid the risk of
electric shock.
2). do not scratch or press on the panel with any sharp objects.
3). do not leave the module in high temperatures or in areas of high
humidity for an extended period of time.
4). do not expose the LCD panel to direct sunlight.
5). avoid contact with water. It may cause a short circuit within the
module.
6). disconnect the AC adapter when replacing the backlight (CCFL)
or inverter circuit.
(High voltage occurs at the inverter circuit at 650Vrms)
7). always clean the LCD panel with a soft cloth material.
8). use cere when handling the wires or connectors of the inverter
circuit. Damaging the wires may cause a short.
9). protect the panel from ESD to avoid damaging the electronic
circuit (C-MOS).
electric shock.
2). do not scratch or press on the panel with any sharp objects.
3). do not leave the module in high temperatures or in areas of high
humidity for an extended period of time.
4). do not expose the LCD panel to direct sunlight.
5). avoid contact with water. It may cause a short circuit within the
module.
6). disconnect the AC adapter when replacing the backlight (CCFL)
or inverter circuit.
(High voltage occurs at the inverter circuit at 650Vrms)
7). always clean the LCD panel with a soft cloth material.
8). use cere when handling the wires or connectors of the inverter
circuit. Damaging the wires may cause a short.
9). protect the panel from ESD to avoid damaging the electronic
circuit (C-MOS).
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly soldered
safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly soldered
connections. Check the entire board surface for solder splashes
and bridges.
and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and
mounting hardware have been replaced. Be absolutely certain
that you have replaced all the insulators.
that you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
them out to the customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend
their replacement.
their replacement.
6. Check the line cords for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
7. Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage. Check
leakage as described below.
leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instructions.
instructions.
2. A battery-operated AC milliampmeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75 V, so analog meters must have an accurate low
voltage scale. The Simpson’s 250 and Sanwa SH-63TRD are
examples of passive VOMs that are suitable. Nearly all bat-
tery-operated digital multimeters that have a 2 VAC range are
suitable (see Figure A).
tion is 0.75 V, so analog meters must have an accurate low
voltage scale. The Simpson’s 250 and Sanwa SH-63TRD are
examples of passive VOMs that are suitable. Nearly all bat-
tery-operated digital multimeters that have a 2 VAC range are
suitable (see Figure A).
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k Ω
0.15 µF
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
– 4 –
KLV-32V200A/40V200A/46V200A
RM-GA005
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. H1 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. H1 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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LEAD FREE INFORMATION
– 5 –
KLV-32V200A/40V200A/46V200A
RM-GA005
SELF DIAGNOSTIC FUNCTION
Control Buttons
PIC OFF/TIMER
STANDBY
POWER
TV/VIDEO
VOLUME
MENU
CHANNEL
POWER
Description of LED Indictors
LED
LED Type
Description
* Light is green when the TV set is on
* Functions as failure indicator
* Blinks green in aging mode
* Functions as failure indicator
* Blinks green in aging mode
TIMER LED
Red LED
Lights when timer is set
PIC OFF LED
Green LED
Lights when power saving setting is set to
picture off (See Instruction Manual)
picture off (See Instruction Manual)
POWER LED
Red/Green LED
– 6 –
KLV-32V200A/40V200A/46V200A
RM-GA005
LED Control
STATUS
POWER LED
TIMER LED/
PICTURE OFF LED
STANDBY
LED
REMARKS
Power Off
Off
Off
Off
Power off using the power switch or
remote control. NOTE: Standby
state does not exist in this model;
however, the microcomputer does
enter into sleep mode.
remote control. NOTE: Standby
state does not exist in this model;
however, the microcomputer does
enter into sleep mode.
Power Off
Lights Green
Off
Off
Microcomputer working normally.
Failure
Blinks Red
Off
Off
Failure causes are classified by the
number of time the red light blinks.
number of time the red light blinks.
Aging
Blinks Green
Off
Off
Aging mode is classified by a blinking
green light.
green light.
Pic
PC STANDBY
PC STANDBY/
TIMER ON
TIMER ON
ture Off
Lights Green
Lights Green
Off
Off
Off
No display (black screen).
Lights Green
Lights Orange
Off
When SLEEP TIMER is set during
power on.
power on.
Lights Green
Lights Green
When SLEEP TIMER is set in
Picture Off mode.
Picture Off mode.
Off
Lights Orange
Off
When ON TIMER is set and power is
off.
off.
Lights Green
Lights Orange
Off
When ON TIMER is set and power is
on.
on.
Lights
Off
Green
Lights
Off
Green
Lights Red
Off
Lights Orange
Lights Red
When ON TIMER is set in Picture Off
mode.
mode.
SLEEP TIMER
ON TIMER
The units in this manual contain a self-diagnostic function. If an error occurs, the POWER LED will automatically begin to flash. The
number of times the LED flashes translates to a probable source of the problem. A definition of the POWER LED flash indicators is
listed in the instruction manual for the user’s knowledge and reference. If an error symptom is difficult to reproduced use the
Remote Commander to display the record that is stored at the internal NVM to specify the cause of the failure.
number of times the LED flashes translates to a probable source of the problem. A definition of the POWER LED flash indicators is
listed in the instruction manual for the user’s knowledge and reference. If an error symptom is difficult to reproduced use the
Remote Commander to display the record that is stored at the internal NVM to specify the cause of the failure.
Diagnostic Test Indicators
When an error occurs, the POWER LED will flash a set number of times to indicate the possible cause of the problem. If there is
more than one error, the LED will identify the first of the problem areas. If the errors occur simultaneously, the one that corresponds
to the fewest flashes is identified first. Results for all of the following diagnostic items are displayed on screen. No error has occurred
if the screen displays a “0”.
When an error occurs, the POWER LED will flash a set number of times to indicate the possible cause of the problem. If there is
more than one error, the LED will identify the first of the problem areas. If the errors occur simultaneously, the one that corresponds
to the fewest flashes is identified first. Results for all of the following diagnostic items are displayed on screen. No error has occurred
if the screen displays a “0”.
LED
ERROR
ERROR DESCRIPTION
CODE
1
Supply Voltage Trouble Panel 5V UNReg (10.5V)
2
DE5V Voltage Trouble FE5V (DCALERT2)
3
Voltage Trouble D3.3V/D2.5V/D1.8V. (DCALERT1)
4
Backlight Trouble
5
Main Supply Voltage Trouble (17.5V.DET)
6
Speaker Applied Voltage Trouble
7
Monitor an Increase in Inside-Temperature (esp. on the panel side)
8
Trident IC Trouble
