6. ELECTRICAL PARTS LIST......................................... 57
OPERATING INSTRUCTIONS
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON THE
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
– 2 –
KV-SW14M50/M51/M80/M90
SELF DIAGNOSTIC FUNCTION
The units in this manual contain a self diagnostic function. If an error occurs, the STANDBY (1) indicator will automatically
begin to flash. The number of times the STANDBY (1) indicator flashes translates to a probable source of the problem. If an
error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in
memory to reveal past problems and how often these problems occur.
1. DIAGNOSTIC TEST INDICATORS
When an errors occurs, the STANDBY (1) indicator will flash a set number of times to indicate the possible cause of the
problem. If there is more than one error, the indicator will identify the first of the problem areas.
Result for all of the following diagnosis items are displayed on screen. No error has occurred if the screen displays a "0".
RM-GA002
Diagnosis
Item
Description
No Power
+B overcurrent
(OCP)
V-Protect (OVP)
IK (AKB)
Power supply
NG (+5V) for
Video Processor
No. of timer
STANDBY (1)
indicator flashes
Does not light
2 times
4 times
5 times
8 times
Diagnostic Result
on screen display
–
2:0
or
2:1 ~ 255
4:000
or
4:1 ~ 255
5:0
or
5:1 ~ 255
8:0
or
8:1 ~ 255
Probable Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out (F600)
A board.
• H OUT (Q805) is shorted.
(A board)
IC751 is shorted. (C board)
•
• +13V is not supplied.
(A board)
• IC804 is faulty. (A board)
• Video OUT (IC1545) is
faulty. (A board)
• IC001 is faulty. (A board)
• Screen (G2) is improperly
adjusted.
• IC604 faulty.
• IC602 faulty.
Detected
Symptoms
• Power does not turn on.
• No power is supplied on
TV.
• AC Power supply is faulty.
• Power does not turn on.
• Load on power line is
shorted.
• Has entered standby state
after horizontal raster.
• Vertical deflection pulse is
stopped.
• Power line is shorted or
power supply is shorted.
• No raster is generated.
• CRT Cathode current
detection reference pulse
output is small.
• No power supply to CRT
ANODE.
• No RASTER is generated.
2. STANDBY INDICATOR BLINKING PROCESS
Lamp ON 300ms
Lamp OFF 300ms
The example above represents for 4 times blink
Lamp OFF 3 seconds
3. STANDBY INDICATOR ON TV FRONT PANEL
Standby indicator
– 3 –
KV-SW14M50/M51/M80/M90
RM-GA002
4. SELF DIAGNOSTIC SCREEN DISPLAY
SELF DIAGNOSTIC
2 : 000
3 :000
4 :000
5 :001
8 :002
101 :N/A
5. HANDLING SELF DIAGNOSTIC SCREEN DISPLAY
No.DescriptionMethod
1.Display self diagnostic screen[Display] t [Channel ] t [Volume ] t [Power / TV]
2.Stop standby flashi) Turn off power switch on main.
3.Clear fault result[Channel ] t -
4.Quit self diagnostic screenTurn off power switch of remote commander or main unit.
"0" means no fault has been detected.
"1" means a fault has been detected.
"2" means two faults have been detected.
"N/A" means not available for this models.
5
Note: The above must be performed while TV is on standby mode.
ii) Unplug power cord from the outlet.
8
Note: Diagnostic results display on screen is not automatically cleared. Therefore,
clear result after completion of repair.
6. SELF-DIAGNOSTIC CIRCUIT
FROM
C BOARD
IC751 PIN 5
A BOARD
FROM
Q816
COLLECTOR
A BOARD
IC001
Y/CHROMA JUNGLE
IK
32
EHTO
A BOARD
IC804
V.OUT
F.B-PLS
A BOARD
IC001
SYSTEM
SDA1
31384
V.GUARD
RED LED
99
122
DISPLAY
A BOARD
IC003
MEMORY
5
SDA
[+B overcurrent $OCP%]Occurs when an overcurrent on the +B(135V) line is detected by pin 32 of IC001 (A board).
If the voltage of pin 32 of IC001 (A board) is more than 4V, the unit will automatically go to
standby.
[V-PROTECT]Occurs when an absence of the vertical deflection pulse is detected by pin 13 of IC001
(A board).
[IK $AKB%]If the RGB levels* do not balance within 15 sec after the power is turned on, this error will be
detected by IC001 (A board). TV will stay on, but there will be 5 times LED blinking.
POWER SUPPLY NG (+5V)
for VIDEO PROCESSOR
Occurs when IC001 internal HV protect detects an abnormal H-Pulse (frequency) due to
improper power supply to IC001. TV cuts off high voltage power of anode CRT. No picture will be
detected. eg: IC602, IC604 go faulty.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
– 4 –
SECTION 1
DISASSEMBLY
1.2SPEAKER REMOVAL1-1. REAR COVER REMOVAL
KV-SW14M50/M51/M80/M90
RM-GA002
2 Rear cover
1
(+BVTP 4
Six screws
Type 2 IT-3 )
1 Two screws
(Washer Head)
(+P4x16)
× 16
1-4. SERVICE POSITION1-3. CHASSIS ASSY REMOVAL
3 A Board
4 Terminal bracket
1 One screw
(+BVTP 3 x 12
Type 2 IT-3)
2 One screws
(+BVTP 4
Type 2 IT-3)
1-6. A BOARD REMOVAL1-5. TERMINAL BRACKET REMOVAL
× 16
A Board
– 5 –
KV-SW14M50/M51/M80/M90
RM-GA002
1-7. PICTURE TUBE REMOVAL
Note:
• Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom right
and left.
1) Remove the Rear Cover.
2) Unplug all interconnecting leads from the Deflection Yoke, Neck Assy, Degaussing Coils and CRT grounding strap. Remove
Chassis Assy.
3) Place the TV set with the CRT face down on a cushion (jig).
qs Screw, Tapping 5 + Crown Washer (x4)
7 Degaussing Coil
qa Supports, CRT
Removal (x2)
q; Loosen the Deflection Yoke
fixing screw and remove
4 Anode Cap Removal
9 Earth Coating Assy
6 Loosen the Neck Assembly
fixing screw and remove
Neck Assy & VM board
8 Spring Tension Removal
5 C Board Removal
• REMOVAL OF ANODE-CAP
Note:
• After removing the anode, short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield
or carbon paint on the CRT.
•REMOVING PROCEDURES
A
A
1 Turn up one side of the rubber cap in the direction
indicated by the arrow a.
B
B
2 Using a thumb pull up the rubber cap firmly in the
direction indicated by the arrow b.
C
Anode Button
3 When one side of the rubber cap is separated from the
anode button, the anode-cap can be removed by
turning up the rubber cap and pulling it up in the
direction of the arrow c.
•HOW TO HANDLE AN ANODE-CAP
1 Do not damage the surface of anode-caps with
sharp shaped objects.
2 Do not press the rubber too hard so as not to
damage the inside of anode-cap.
A metal fitting called the shatter-hook terminal is
built into the rubber.
3 Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage
the rubber.
– 6 –
SECTION 2
SET-UP ADJUSTMENTS
KV-SW14M50/M51/M80/M90
RM-GA002
The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
Perform the adjustments in order as follows:
1. Beam Landing
2. Convergence
The controls and switch should be set as follows unless
otherwise noted:
3. Focus
4. G2 (SCREEN)
5. White Balance
Picture control ......................................................... NORMAL
Brightness control ................................................... NORMAL
U S : US/Latin/Taiwan
E U : Europe
G A : General Area
J P: Japan
softwareservice datareservedpower on time
Status ByteStatus Byte
Flash DCXO#1 SSD#2 SSD
VDSP_C Flag
CO_LOCKED
VDSP
Detected Stereo Type (Direct Value from CZ_ Stereo_Mode)
111Needed for Nicam DCXO aligment Purpose
xyValue of x = 0 - Unknown, 1 - BTSC, 2 - A2, 3 - NICAM,
4 - KOREAN, 5 - Japan, 6 - AV Stereo
Value of y = 0 - Mono, 1 - Stereo, 2 - Bilingual, 4 - SAP/Single
0 1 : serial no. of the M/P release
for each destination
b. METHOD OF CANCELLATION FROM SERVICE MODE
Set the standby condition (Press [POWER] button on the commander), then press [POWER] button again, hereupon it becomes
TV mode.
c. METHOD OF WRITE INTO MEMORY
1. Set to Service Mode.
2. Press 1 (UP) and 4 (DOWN), to select the adjustment item.
3. Change item by pressing 3, 6.
4. Press [MUTING] button to indicate WRITE on the screen.
5. Press - button to write into memory.
1, 4Select the adjustment item.
r
3, 6Raise/lower the data value.
r
[MUTING]Writes.
r
-Executes the writing.
d. MEMORY WRITE CONFIRMATION METHOD
1. After adjustment, pull out the plug from AC outlet, and then plug into AC outlet again.
2. Turn the power switch ON and set to Service Mode.
3. Call the adjusted items again to confirm adjustments were made.
– 10 –
KV-SW14M50/M51/M80/M90
e. OTHER FUNCTION VIA REMOTE COMMANDER
7, -All the data becomes the values in memory.
8, -All user control goes to the standard state.
Display, -Service data initialization (Be sure not to use usually.)
2, 5Select Device or Category
3-2. ADJUSTMENT METHOD
Item Number 000 HPOS
This explanation uses H POSITION as an example.
1. Select "000 HPOS" with the 1 and 4 buttons, or 2 and 5.
2. Raise/lower the data with the 3 and 6 buttons.
3. Select the optimum state. (The standard is IF for PAL reception.)
4. Write with the [MUTING] button. (The display changes to WRITE.)
5. Execute the writing with the - button. (The WRITE display will be changed to red color while excuting, and back to
SERVICE.)
Example on screen display :-
GREEN
GEOM000HPOS 039 SERVICE 50 VIDEO 1
RM-GA002
Adjusted with 3 and 6 buttons.
GREEN
GEOM000HPOS 039 WRITE 50 VIDEO 1
write with [MUTING].
RED
GEOM000HPOS 039 WRITE 50 VIDEO 1
Write executed with -.
The WRITE display
then returns to green
SERVICE
Use the same method for all Items. Use 1 and 4 to select the adjustment item, use 3 and 6 to adjust, write with [MUTING],
then execute the write with -.
Note : 1. In [WRITE], the data for all items are written into memory together.
2. For adjustment items that have different standard data between 50Hz or 60Hz, be sure to use the respective input
signal after adjustment.
a) In the initial value (detailed) column, the data after the slash mark ("/") refers to NTSC model data.
No ("/") means data is common for Multi and NTSC model. (not applicable to this model)
b) Item remarked "*" , please refer page 24 for the data.
c)
shaded items are no data.
d) Standard data listed on the Adjustment Item Table are reference values, therefore it may be different for each model and for each mode.
e) Note for the Different Data those are the standard data values written on the microprocessor. Therefore, the data values of the models are stored respectively in the memory.
In the case of a device replacement, adjustment by rewriting the data value is necessary for some items.
Party ModeParty Mode Function0 = not available,1 = available
FM RadioFM Radio Function0 = not available,1 = available
Component(Component [YCbCr] Terminals) 0 = not available,1 = available
Composite(No. of Composite Terminals) 00 = 1 composite terminal
SECAM(SECAM Color System)0 = disabled, 1 = enabled
Color decoding(Color Crystal Selection)00 = PAL/NTSC (Multi)
Party Mode FM Radio ComponentComposite (SCART)SECAMColor DecordingDEC
Destination ONLY)1 = Disable 3D Intelligent Picture OSD
1 = Comb available
1 = PiP available
1xxx = Simplified Chinese
GAx1xx = Arabic/Russian
xx1x = Thai
xxx1 = Persian/Vietnamese
– 27 –
KV-SW14M50/M51/M80/M90
VB1
VB2
VB3
VB4
80mV
RM-GA002
3-3.PICTURE QUALITY ADJUSTMENT
3-3-1. P MAX/CONTRAST ADJUSTMENT
1. Set TV to Video mode.
2. Input PAL 100% CB to TV set (OTHERS), NTSC 75%
CB (NTSC model).
3. Set PICT 003 "PWL" to 00h WHBL 017 "BLBG" to 01h.
4. Set the following condition:
PICTURE 100%, COLOR 0%, BRIGHTNESS 50%
5. Connect an oscilloscope to pin 4 (R Output) of CN004.
6. Select SADJ 000 "PMAX" with 1 and 4 button of the
commander then adjust VR with spec with 3 and 6
until reach the spec below:
VR
Black
1.46 ± 0.03 Vp-p = For 21" without VM models/14" GA models
1.65 ± 0.03 Vp-p = With VM models except NTSC models
1.23 ± 0.03 Vp-p = NTSC models VM models
1.10 ± 0.03 Vp-p = For 21" NTSC non VM models/
14" GA NTSC models
7. Select Wide Mode to "ON" in TV and Video mode and
write "PMAX" data - 8 steps (for models with VCompression features only).
8. Then press [MUTING] t - to write the data.
9. Select "PWL" and "BLBG" back to initial data.
("PWL": 01h and "BLBG": 00h)
10. Then press [MUTING] t - again to write the data.
3-3-2. SUB COLOR ADJUSTMENT
1. Set TV to Video mode.
2. Set Picture mode to "CUSTOM".
3. Input PAL 100% Color Bar(CB) to TV set (OTHER
MODEL).
4. INPUT NTSC 75% CB to TV set (NTSC MODEL).
5. Set PICT 006 "WTS" to 00h and Intelligent Picture to
"OFF".
6. Set the following condition:
PICTURE 50%, COLOR 50%, BRIGHTNESS 50%, HUE
50%, SHARPNESS 50%
7. Connect an oscilloscope to pin 2 (B Output) of CN004.
8. Select SADJ 004 "SCOL" with 1 and 4 button of the
commander then adjust with 3 and 6 so that
B2=VB3=VB4 (for PAL), and VB1=VB4 (for NTSC) then
V
write in the data +5 step offset.
VB1
VB2 VB3 VB4VB1 VB2 VB3 VB4
3-3-3. SUB HUE ADJUSTMENT
1. Set TV to Video mode.
2. Set Picture mode to "Custom"
3. Input NTSC 3.58 CB to TV set.
4. Set the following condition:
PICTURE 50%, COLOR 50%, BRIGHTNESS 50%,
HUE 50%, SHARPNESS 50%
5. Select service mode and - 5 step offset from SADJ 004
"SCOL" using 1 and 3 button of the remote
commander.
6. Connect oscilloscope to pin 2 (B output) of CN004.
7. Set to service mode and select SADJ 001 "SHUE" with
1 and 4 button then adjust to V
B1=VB2=VB3=VB4 with
3 and 6 button.
8. Press [MUTING]t - to write the data.
9. Select service mode SADJ 004 "SCOL" and +5 step
offset and write the data using [MUTING] t -.
10. Select TV channel with 3.58 and repeat item (3) to (7)
and +1 step data offset.
11. Press [MUTING]t - to write the data.
12. For single system model with NTSC 4.43, select TV
channel with NTSC 4.43 and repeat item (3) to (8).
The highest level of VB1, VB2, VB3, VB4
must be aligned at the same time.
The ideal difference between
VB2 and VB3 is within ± 80mV
13. Once adjustment is completed in video mode, carry out
adjustment in DVD mode. Set TV to DVD mode, input
NTSC 3.58 to DVD set and perform step 4 to 9 and 11.
3-3-4. SUB HUE ADJUSTMENT FOR YUV input
1. Select YUV input.
2. Input NTSC 3.58 CB into YUV mode.
3. At CN004 pin 2 (B output) waveform (as shown) adjust
service item YC 013 "TINT" and write the data using
[MUTING] t -.
3-3-5. SUB BRIGHT ADJUSTMENT
1. Set to RF mode.
2. Input PAL monoscope to RF mode.
3. Set Brightness 50% and Picture to "MINIMUM".
4. Select WHBL 010 "SBRT" with 1 and 4 button of the
remote commander and adjust its data with 3 and 6
so that cut-off level is 10 IRE, slightly glimmer: 20 IRE.
5. Write into the memory by pressing [MUTING] t -.
VB2 = VB3 = VB4 (for PAL)VB1 = VB4 (for NTSC)
(Difference is within 70mV)
9. Then press [MUTING] t - to write the data.
10. Set "WTS" back to original data and Intelligent Picture to
"ON".
11.Copy no.9 data to PAL TV & DVD mode (OTHER
MODEL) and NTSC TV & DVD mode (NTSC Model).
– 28 –
KV-SW14M50/M51/M80/M90
RM-GA002
3-4. GEOMETRY ADJUSTMENT
Geometry adjustment must be done for both color systems
PAL and NTSC.
3-4-1. GENERAL SETTING
a) Input Monoscope or Special Color Bar(SPCB) signal
using a pattern generator.
b) Set to Service Mode.
c) Select Category/Functionally Name (as in the service
list) using 1 and 4 button on the remote commander.
Eg. GEOM
d) Raise or Lower the data value using 3 and 6 button.
e) Press [MUTING]t - to save the data into memory.
Note 1: Geometry Adjustment must be performed for 4 different
modes: PAL 50Hz NORMAL MODE, PAL 50Hz WIDE
MODE, NTSC 60Hz NORMAL MODE, NTSC 60Hz
WIDE MODE.
3-4-2. PAL 50Hz NORMAL MODE
a) Input PAL signal 50Hz in the Service Mode.
b) Set Wide Mode to "OFF".
Item No.FunctionIllustration
GEOM 013Vertical Shift
(VPOS)
c) Perform the below adjustments using the "GENERAL
SETTING" sequence. (refer 3-4-1)
d) Once adjustment is done for PAL 50Hz NORMAL
MODE, set Wide mode to "ON" and copy all PAL 50Hz
NORMAL MODE adjusted data to PAL 50 Hz WIDE
MODE except VSCR.
e) Now, perform adjustment for NTSC 60Hz NORMAL
MODE.
f) Set Wide mode to "OFF"
g) Perform adjustment item listed in the above table using
the "GENERAL SETTING" sequence. (refer 3-4-1).
h) Once adjustment is completed, set Wide mode to "ON"
and copy all NTSC 60Hz NORMAL MODE adjusted data
to NTSC 60Hz WIDE MODE except VSCR.
i)Upon completing adjustment for all modes, reconfirm
VSIZ and VPOS.
GEOM 011Vertical Amplitude
(VSIZ)
GEOM 000Horizontal Shift
(HPOS)
GEOM 009EW Trapezoid
(EWTZ)
GEOM 005EW Width (EW)
(HSIZ)
GEOM 002Horizontal Bow
(HBOW)
GEOM 006EW Parabola/Width
(EWPW)(PW)
GEOM 007EW Upper Corner
(UCOP)Parabola
GEOM 008EW Lower Corner
(LCOP)Parabola
Note: Adjust VSIZ to
Note: Adjust HSIZ to
±
(SPCB)
12.4
±
(PAL Monoscope)
11.3
±
(NTSC Monoscope)
11.5
±
(SPCB)
16.4
±
(PAL Monoscope)
14.6
±
(NTSC Monoscope)
15.3
GEOM 001Horizontal
(HPAR)Parallelogram
GEOM 012S-Correction(SC)
(SCOR)
GEOM 003Vertical Linearity
(VLIN)
GEOM 004Vertical Scroll
(VSCR)
– 29 –
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