The SRS (SOUND RETRIEVAL SYSTEM) is manufactured by
Sony Corporation under license from SRS Labs, Inc. It is covered
by U.S. Patent No. 4,748,669. Other U.S. and foreign patents
pending.
The word ‘SRS’ and the SRS symbol are registered trade-
marks of SRS Labs, Inc. BBE and BBE symbol are trademarks of
BBE Sound, Inc. and are licensed by BBE Sound, Inc. under U.S.
Patent No. 4,638,258 and 4,482,866.
Design and specifi cations are subject to change without notice.
1)
1 Vp-p 75 ohms unbalanced, sync negative
2)
Y: 1 Vp-p 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
3)
More than 408 mVrms at the maximum volume setting (variable)
More than 408 mVrms (fi x)
4)
500
m
Vrms (100% modulation), Impedance: 47 kilohms
5)
Y: 1.0 Vp-p, 75 ohms, sync negative;
PB: 0.7 Vp-p, 75 ohms
PR: Vp-p, 75 ohms
TruSurround
™
bySRS
®
KV-42DRC700
Power requirements120V, 60 Hz
Number of inputs/outputs
Video
1)
4
S Video
2)
3
Audio
3)
6
Audio Out
4)
1
Y,P
B
, P
R
5)
2
Monitor Out1
Control-S (in/out)YES
Speaker output(W)
7.5W x 2
15W Subwoofer
Power Consumption(W)
In use(Max)245W
In standby2W
Dimensions(W/H/D)
(mm)
1093 x 836 x 665 mm
(in)
43
1
/
8
x 33 x 26
1
/8
in
Mass
(kg)138 kg
(lbs)304 lbs.
— 5 —
KV-42DRC700
WARNINGS AND CAUTIONS
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.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of
this receiver is directly connected to the AC power line.
!SAFETY-RELATED COMPONENT WARNING!!
Components identifi ed 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 identifi ed in this manual. Follow these procedures
whenever critical components are replaced or improper operation is suspected.
ATTENTION!!
Apres avoir deconnecte le cap de l’anode, court-circuiter l’anode du tube cathodique et celui de l’anode du cap au chassis metallique
de l’appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
Afi n d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout
dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur.
! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifi es par une trame et par une marque
!
sur les schemas de principe, les vues explosees et les listes de
pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont
le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont
l’importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
— 6 —
KV-42DRC700
To Exposed Metal
Parts on Set
0.15 F
1.5 K Ω
AC
Voltmeter
(0.75 V)
Earth Ground
Trouble Light
AC Outlet Box
Ohmmeter
Cold Water Pipe
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
connections. Check the entire board surface for solder splashes and
bridges.
2. Check the interboard wiring to ensure that no wires are “pinched” or
touching 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.
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.
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend 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 B+ and HV to see if they are specifi ed values. Make sure
your instruments are accurate; be suspicious of your HV meter if sets
always have low HV.
8. Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check 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 WT-540A. Follow the manufacturers’ instructions to use these
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” indication 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 battery-operated digital multimeters
that have a 2 VAC range are suitable (see Figure A).
How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-plate retaining
screw on most AC outlet boxes is also at earth ground. If the retaining
screw is to be used as your earth ground, verify that it is at ground
by measuring the resistance between it and a cold-water pipe with an
ohmmeter. The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble-
light (not a neon lamp) between the hot side of the receptacle and the
retaining screw. Try both slots, if necessary, to locate the hot side on the
line; the lamp should light at normal brilliance if the screw is at ground
potential (see Figure B).
Figure A. Using an AC voltmeter to check AC leakage.Figure B. Checking for earth ground.
— 7 —
KV-42DRC700
SELF-DIAGNOSTIC FUNCTION
Display of STANDBY/STEREO LED Flash Count
Diagnostic itemsFlash count
Lamp OFF 3 sec.
Lamp ON 0.3 sec.
Lamp OFF 0.3 sec.
STANDBY/STEREO LED
+B Overcurrent (OCP)2 times
+B Overvoltage (OVP)3 times
Vert. Deflection Stopped4 times
White Balance Failure5 times
Low B OCP/OVP6 times
Horiz. Deflection Stopped7 times
Stopping the STANDBY/STEREO LED Flash
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/STEREO LAMP from fl ashing.
Self-Diagnostic Screen Display
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confi rmed, it is possible to bring up
past occurrences of failure on the screen for confi rmation.
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/STEREO LED will automatically begin to fl ash. The number
of times the LED fl ashes translates to a probable source of the problem. A defi nition of the STANDBY/STEREO LED fl ash indicators is listed in the
instruction manual for the user’s knowledge and reference. 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.
Diagnostic Test Indicators
When an error occurs, the STANDBY/STEREO LED will fl ash 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 fi rst of the problem areas.
Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a “0”.
No. of times STANDBY/
Diagnostic Item STEREO lamp fl ashes Display Result Probable Cause Location Detected Symptoms
Power does not turn on Does not light • Power cord is not plugged in. • Power does not come on.
• Fuse is burned out F6001 (A Board). • No power is supplied to the TV.
• AC power supply is faulty.
+B Overcurrent (OCP) 2 times 2:0 or 2:1 • H.OUT (Q5030) is shorted (D Board). • Power does not come on.
(See Note 1) • +B PWM (Q5003) is shorted (D Board). • Load on power line is shorted.
• IC9001, IC9002, IC9003 is shorted (C Board).
+B Overvoltage (OVP) 3 times 3:0 or 3:1 • IC6505 is faulty (D Board). • Has entered standby mode.
Vertical Defl ection Stopped 4 times 4:0 or 4:1 • ± 15V is not supplied (D Board). • Has entered standby state after
• IC5004 is faulty (D Board). horizontal raster.
• Vertical defl ection pulse is stopped.
• Power line is shorted or power
supply is stopped.
White Balance Failure 5 times 5:0 or 5:1 • Video OUT (IC9001-IC9003) is faulty (C Board). • No raster is generated.
(not balanced) • CRT drive (IC201) is faulty (A Board). • CRT Cathode current detection
• G2 is improperly adjusted (See Note 2). reference pulse output is small.
LOW B OCP/OVP 6 times 6:0 or 6:1 • +5 line is overloaded (A, B Boards). • No picture.
(overcurrent/overvoltage) • +5 line is shorted (A, B Boards).
(See Note 3) • IC6007 is faulty (A Board).
Horizontal Defl ection Stopped 7 times 7:0 or 7:1 • No picture.
Note 1: If a +B Overcurrent is detected, stoppage of the Vertical Defl ection is detected simultaneously. The symptom that is diagnosed fi rst by the microcontroller is displayed on screen.
Note 2: Refer to Screen (G2) Adjustment in Section 2-5. of this manual.
Note 3: If STANDBY/STEREO LED fl ashes six (6) times, unplug the unit and wait 10 seconds before performing the adjustment.
Self Diagnosis
Supported model
* One fl ash count is not used for self-
diagnostic.
— 8 —
KV-42DRC700
SELF DIAGNOSIS
2: +B OCP N/A
3: +B OVP N/A
4: V STOP 0
5: AKB 1
6: LOWB 0
7: H-STOP 0
101: WDT 24
Handling of Self-Diagnostic Screen Display
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you
have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.
Clearing the Result Display
To clear the result display to “0”, press buttons on the Remote Commander sequentially when the diagnostic screen is displayed, as shown below:
Channel
8
ENTER
Quitting the Self-Diagnostic Screen
To quit the entire self-diagnostic screen, turn off the power switch on the Remote Commander or the main unit.
Self-Diagnostic Circuit
+B Overcurrent (OCP)
Occurs when an overcurrent
(more than 6A) on the +B
(135V) line is detected by
R6598/R6591. It will cause
Q6520 to turn on and force the
AC relay to turn off through
Q6532 and Q6530.
+B Overvoltage (OVP)
Occurs when 1) overvoltage
(more than +140V) on the
+B (135V) line is detected by
IC6505, or 2) an overvoltage
(more than 7.5 V) on the unreg
7V line is detected by D6014.
The AC relay will turn off
through Q6532 and Q6530.
Vertical Defl ection Stopped
Occurs when an absence of
the vertical defl ection pulse
is detected by IC201. Power
supply will shut down when
waveform interval exceeds 2
seconds.
White Balance Failure
If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will be detected by IC201. TV will stay on, but there
will be no picture.
*(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).
Low B OCP/OVP Error
Occurs when set 5V is out.
Horizontal Defl ection Stopped
Occurs when either: 1) a +B overcurrent is detected (IC5007), or 2) overheating is detected (Thermistor TH5002).
Numeral “0” means that no fault
was detected.
Numeral “1” means a fault was detected
one time only.
To Bring Up Screen Test
In standby mode, press buttons on the Remote Commander sequentially,
in rapid succession, as shown below:
DISPLAY
Channel
5
Sound volume
-
Power ON.
AKB
VPROT
HPROT
SCL
SDA
IC701
MAIN UCOM
STBY LED
HA
STR
STBY-LED
OCP
OVP
LOW B ERR
AC RLY
CLKO
DATO
29
30
69
43
45
44
48
Q6532
Q6530
D6537
D6501
Q6527
RY6501
SET ON
200V OCP
+B OCP
OVP
D8027
D8003
0
0
I
UNREG 7V
D6014
D6018
SET 5V
26
25
58
35
34
CRT
VDY -
R5125
R5104R5105
IC5007
214
Q5018
I5V
2
1
3
OVP
Q6522
STBY 5V
Q6524
Q6521
IC6505
+B OVP
+B
Q6520
IC6007
IC201
Y/C JUNGLE
D
A
A
A
D
— 9 —
KV-42DRC700
1-1. REAR COVER REMOVAL
1-2. CHASSIS ASSEMBLY REMOVAL1-3. SERVICE POSITION
SECTION 1: DISASSEMBLY
2
1
1
1
CAUTION! - Heat sink on IC5004 is -15V. Care must be
taken not to allow heat sink to touch any other components.
2
Gently pull the chassis assembly away from the bezel.
1
Pull up and rotate both the A and D Boards in order to
service the unit.
Remove 22 (+BVTP 4x16) screws from areas
indicated with a circle or line.
Chassis
Assembly
— 10 —
KV-42DRC700
1
Discharge the anode of the CRT and remove the
anode cap.
2
Unplug all interconnecting leads from the defl ection
yoke, neck assembly, degaussing coils and CRT
grounding strap.
3
Remove the Speaker Assemblies.
4
Remove the C Board from the CRT.
5
Remove the chassis assembly.
6
Loosen the neck assembly fi xing screw and remove.
7
Loosen the defl ection yoke fi xing screw and remove.
8
Place the set with the CRT face down on a cushion
and remove the degaussing coil holders.
9
Remove the degaussing coils.
10
Remove the CRT grounding strap and spring tension
devices.
11
Unscrew the four CRT fi xing screws [located on each
CRT corner] and remove the CRT [Take care not to
handle the CRT by the neck].
1-4. PICTURE TUBE REMOVAL
WARNING: BEFORE REMOVING THE ANODE CAP
High voltage remains in the CRT even after the power is disconnected. To avoid electric shock,
discharge CRT before attempting to remove the anode cap. Short between anode and CRT
coated earth ground strap.
Coated
Earth
Ground
Strap
ANODE CAP REMOVAL PROCEDURE
WARNING: High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove
the anode cap. Short between anode and coated earth ground strap of CRT.
NOTE: After removing the anode cap, short circuit the anode of the picture tube and the anode cap to either the metal chassis, CRT shield, or
carbon painted on the CRT.
REMOVAL PROCEDURES
HOW TO HANDLE AN ANODE CAP
1. Do not use sharp objects which may cause damage to the surface of the
anode cap.
2. To avoid damaging the anode cap, do not squeeze the rubber covering too hard.
A material fi tting called a shatter-hook terminal is built into the rubber.
3. Do not force turn the foot of the rubber cover. This may cause the shatter-hook
terminal to protrude and damage the rubber.
2
1
3
4
5
6
7
8
9
10
11
a
b
AnodeButton
c
Turn up one side of the rubber cap in
the direction indicated by arrow
a
.
Use your thumb to pull the rubber
cap fi rmly in the direction indicated
by arrow
b
.
When one side of the rubber cap separates from
the anode button, the anode cap can be removed
by turning the rubber cap and pulling it in the
direction of arrow
c
.
— 11 —
KV-42DRC700
The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
These adjustments should be performed with rated power supply
voltage unless otherwise noted.
The controls and switch should be set as follows unless otherwise
noted:
VIDEO MODE: STANDARD (RESET)
SECTION 2: SET-UP ADJUSTMENTS
Perform the adjustments in order as follows:
1. Beam Landing
2. Convergence
3. Focus
4. Screen (G2)
5. White Balance
Test Equipment Required:
1. Color Bar Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital Multimeter
2-1. BEAM LANDING
Preparation:
• Input a white pattern signal.
• Face the picture tube in an East or West direction to reduce the
infl uence of geomagnetism.
NOTE: Do not use the hand degausser; it magnetizes the CRT .
1. Input white pattern from pattern generator. Set the PICTURE control
to maximum, and the BRIGHTNESS control to standard.
2. Perform Focus, G2 and White Balance adjustments.
3. Loosen the defl ection yoke mounting screw, and set the purity control
to the center as shown below:
Purity Control
4. Input a green pattern from the pattern generator.
5. Move the defl ection yoke backwards, and adjust with the purity control
so that green is in the center and red and blue are even on both
sides.
BlueRed
Green
6. Move the defl ection yoke forward, and adjust so that the entire screen
becomes green.
7. Switch over the raster signal to red and blue and confi rm the
condition.
8. When the position of the defl ection yoke is determined, tighten it with
the defl ection yoke mounting screw.
9. If landing at the corner is not right, adjust it by using the disk magnets.
Puritycontrol
correctsthisarea.
Deflectionyokepositioning
correctstheseareas.
Diskmagnets
orrotatabledisk
magnetscorrect
thsesareas(a-d).
b
d
a
c
— 12 —
KV-42DRC700
2-2. V-PIN AND V-CEN ADJUSTMENT
Preparation:
• Input a cross hatch pattern signal.
• Face the picture tube in a North/South direction and correct rotation.
• Set Video Mode to: Standard (Reset)
1. Adjust service mode CXA2150D-1 04 V-CEN so that the top pin and
bottom pin are symmetrical from top to bottom.
2. Adjust service mode CXA2150D-1 05 V-PIN so that the top pin and
bottom pin are symmetrical from top to bottom.
3. Lines should be straight from left to right. Check landing for side
effect.
2-3. CONVERGENGE
Preparation:
• Set the CONTRAST and BRIGHTNESS control to 50%.
• Input HD dot pattern.
2-3.1. VERTICAL AND HORIZONTAL STATIC
CONVERGENCE
1. Disconnect the dynamic convergence before adjusting static
convergence (CN5510), except for minor touch-up.
2. Adjust H.STAT convergence, RV9001, to converge red, green, and
blue dots in the center of the screen.
3. Adjust V. STAT magnet to converge red, green and blue dots in the
center of the screen.
R
G
B
Center dot
RV9001
V.STAT
V.STAT magnet
R G B
4. Tilt the V.STAT magnet and adjust static convergence to open or close
the V.STAT magnet.
B
G
R
B
G
R
1
2-3.2. OPERATION OF BMC (HEXAPOLE)
MAGNET
The respective dot positions result from moving each magnet interact.
Perform the following adjustments while tracking.
1. Use the V.STAT tabs to adjust the red, green and blue dots so that
they line up at the center of the screen (move the dots in a horizontal
direction).
HMC CorrectionHMC Correction
RGB
A=B
AB
R
GB
A
>
B
AB
RGB
A=B
AB
R
GB
A
<
B
AB
VMC Correction
R
G
B
C
<
D
C
D
R
G
B
C=D
VMC Correction
R
G
B
C
<
D
C
D
R
G
B
C=D
2-3.3. TLH PLATE ADJUSTMENT
Preparation:
• Input a cross hatch pattern signal.
• Adjust PICTURE QUALITY to Standard, PICTURE and
BRIGHTNESS to 50%, and OTHER to Standard.
• Adjust unbalanced horizontal convergence of red and blue dots by
adjusting the TLH Plate on the defl ection yoke.
TLHPlate
RV9002
RV9001
WBoard
CBoard
TLV
XCV
TLH+
TLH-
RB
(B)(R)
BR
(R)(B)
1. Adjust XCV core to balance X axis.
2. Adjust the vertical red and blue convergence with V.TILT (TLV VR).
Note: Perform adjustments while tracking Item 1.
— 13 —
KV-42DRC700
2-3.4. SCREEN-CORNER CONVERGENCE
Preparation:
• Input a cross hatch pattern signal.
1. Affi x a permalloy assembly corresponding to the misconverged areas.
d
c
a
b
a-d: screen-corner
misconvergence
a
b
cd
2-3.5. DYNAMIC CONVERGENCE
ADJUSTMENTS
Set dynamic convergence using the following service mode adjustment
data.
NO.
Register
FunctionData LengthInitial Data
1YBWUVCA90-6331
2YBWLVCA100-6331
3RSAPDC-AMP10-6331
4RUBWVCA50-6331
5RLBWVCA60-6331
6LSAPDC-AMP20-6331
7LUBWVCA100-6331
8LLBWVCA20-6331
CXA8070AP
1. YBWU (Upper Y-BOW)
BRBR
2. YBWL (Bottom BOW)
BRBR
3. RSAP (Right AMP)
RB
4. RUBW (Right Side Upper C-BOW)
BR
5. RLBW (Right Side Bottom C-BOW)
RB
6. LSAP (Left AMP)
BR
7. LUBW (Left Side Upper C-BOW)
BR
8. LLBW (Left Side Bottom C-BOW)
BR
2-4. FOCUS ADJUSTMENT
1. Input a dot signal.
2. Set Video Mode to STANDARD.
3. Adjust focus VR counter-clockwise to confi rm that the dot’s shape is
centered.
4. Input a HP monoscope signal.
5. Confi rm center focus with focus VR.
FOCUS
DOT SHAPE:
2-5. SCREEN (G2)
1. Input a monoscope pattern (NTSC).
2. Set to service mode and adjust as follows:
CXA2150P-2
NO.
Disp.
ItemAvg.
0ALBKALL_BLK0
3. Adjust RV9002 on the C Board so that the voltage on red, green and
blue cathodes is 175 ± 2 VDC.
4. Adjust the hotizontal line at the top of the screen so it is cut off.
Note: Never set ALBK to 1 when external power supply is connected
to cathode.
— 14 —
KV-42DRC700
2-6. PICTURE QUALITY ADJUSTMENTS
Preparation:
• Set PRO MODE (Picture: MAX, GAMMA: 0).
• Dynamic-color: Off (=Trinitron: MID).
• Set the Service Mode to the following:
NO.NameControl FunctionAvg. Data
06UDCLDynamic Color: OFF0
08UGRAMGRAMMA5
15DCTRDC-TRAN2
16DPICDYNAMIC PIC: OFF1
C2150P-4
1. Input signal (480i):
• Color Bar Video 75 IRE (White) 75% modulation 7.5% Set-up.
• Color Bar RF 75 IRE (White) 75% modulation 7.5% Set-up.
2-6.1. VIDEO INPUT - TWO PICTURE SUB
CONTRAST ADJUSTMENT
Preparation:
• Input a Color Bar signal to VIDEO 1 (75 IRE 75%).
• Set picture mode: P&P (PRO MODE).
1. Set to Service Mode and adjust as follows:
NO.NameControl FunctionAvg. Data
00UPICPICTURE63
02UCOLCOLOR0
NO.NameControl FunctionAvg. Data
01RGBSR ON4
2150P-4
2150P-2
INITIAL DATA (IMPORTANT)
NO.NameControl FunctionAvg. Data
23SCONSUB-CONT8
NO.NameControl FunctionAvg. Data
00YLEVY-OUT23
NO.NameControl FunctionAvg. Data
00YLEVY-OUT23
2150P-4
2103-1
2103-2
2. Connect oscilloscope to Pin 1 of CN9001 (R.DRV) on the C Board.
3. Adjust MAIN (left) side contrast according to Service Mode for SCON.
NO.NameControl Function
02SCONSUB-CONT
2103-1
4. Adjust SUB (right) side contrast according to Service Mode for SCON.
NO.NameControl Function
02SCONSUB-CONT
2103-2
white
black
GND
VR2
VR1
VR1-VR2 = VR = 2.08 ± 0.05 Vp-p
5. Write data from Steps 3 and 4 above, into memory.
2-6.2. VIDEO INPUT - SUB HUE/SUB COLOR
ADJUSTMENT
Preparation:
• Input a Color Bar signal to VIDEO 1 (75 IRE 75%).
• Set picture mode: P&P (PRO MODE).
1. Set to Service Mode and adjust as follows:
NO.NameControl FunctionAvg. Data
00UPICPICTURE63
02UCOLCOLOR31
NO.NameControl FunctionAvg. Data
01RGBSR ON7
2150P-4
2150P-2
2. Connect an oscilloscope to Pin 5 of CN9001 (B. DRV) on the C Board.
3. Adjust MAIN (left) side color according to Service Mode for SCOL.
4. Adjust MAIN (left) side color according to Service Mode for SHUE.
NO.NameControl Function
03SCOLSUB-COL
04SHUESUB-HUE
2103-1
5. Adjust SUB (right) side color according to Service Mode for SCOL.
6. Adjust SUB (right) side color according to Service Mode for SHUE.
NO.NameControl Function
03SCOLSUB-COL
04SHUESUB-HUE
2103-2
— 15 —
KV-42DRC700
VB4
VB3VB2VB1
COLOR: VB1 < VB4 (=VB1 + 0~90 mV)
HUE: VB2 < VB3 (=VB2 + 0~90 mV)
(HUE: Adjust data -2 STEP)
7. Write data into memory.
2-6.3. RF INPUT - TWO PICTURE SUB
CONTRAST ADJUSTMENT
Preparation:
• Input a Color Bar signal to RF (75 IRE 75%).
• Set picture mode: P&P (PRO MODE).
1. Set to Service Mode and adjust as follows:
NO.NameControl FunctionAvg. Data
00UPICPICTURE63
02UCOLCOLOR0
NO.NameControl FunctionAvg. Data
01RGBSR ON4
2150P-4
2150P-2
INITIAL DATA (IMPORTANT)
NO.NameControl FunctionAvg. Data
23SCONSUB-CONT8
NO.NameControl FunctionAvg. Data
00YLEVY-OUT23
NO.NameControl FunctionAvg. Data
00YLEVY-OUT23
2150P-4
2103-1
2103-2
Note: Use the same average data as 2-6.1., Items 3 - 4 after the
adjustment.
2. Connect an oscilloscope to Pin 1 of CN9001 (R. DRV) on the C
Board.
3. Adjust MAIN (left) side contrast according to service mode for SCON.
NO.NameControl Function
02SCONSUB-CONT
2103-1
4. Adjust SUB (right) side contrast according to Service Mode for SCON.
NO.NameControl Function
02SCONSUB-CONT
2103-2
white
black
GND
VR2
VR1
VR1-VR2 = VR = 2.08 ± 0.05 Vp-p
5. Write data from Steps 3 - 4 above, into memory.
2-6.4. RF INPUT - SUB HUE/SUB COLOR
ADJUSTMENT
Preparation:
• Input a Color Bar signal to RF (75 IRE 75%).
• Set picture mode: P&P (PRO MODE).
1. Set to Service Mode and adjust as follows:
NO.NameControl FunctionAvg. Data
00UPICPICTURE63
02UCOLCOLOR31
NO.NameControl FunctionAvg. Data
01RGBSR ON7
2150P-4
2150P-4
INITIAL DATA (IMPORTANT)
NO.Name
Control Function
Avg. Data
24CLOFOFFSET for UCOL8
25HUOFOFFSET for UHUE4
NO.Name
Control Function
Avg. Data
01CLEVCB & CR-OUT20
20CBOFCB-OFFSET31
21CROFCR-OFFSET31
NO.Name
Control Function
Avg. Data
01CLEVCB & CR-OUT19
20CBOFCB-OFFSET31
21CROFCR-OFFSET31
2150P-4
2103-1
2103-2
Note: Use the same average data as 2-6.2., Items 3-6 after the
adjustment.
2. Connect an oscilloscope to pin 5 of CN9001 (B. DRV) on the C Board.
3. Adjust MAIN (left) side color according to Service Mode for SCOL.
4. Adjust MAIN (left) side color according to Service Mode for SHUE.
NO.NameControl Function
Avg. Data
03SCOLSUB COLORAdjust
04SHUE
SUB HUE
Fix: 8
2103
-
1
5. Adjust SUB (right) side color according to Service Mode for SCOL.
— 16 —
KV-42DRC700
6. Adjust SUB (right) side color according to Service Mode for SHUE.
NO.NameControl FunctionAvg. Data
03SCOLSUB COLORAdjust
04SHUESUB HUE
Fix: 5
2103-2
VB4
VB3VB2VB1
COLOR: VB1 < VB4 (=VB1 + 0~90 mV)
HUE: VB2 < VB3 (=VB2 + 0~90 mV)
(HUE: Adjust data -2 STEP)
7. Write data into memory.
2-7. WHITE BALANCE (CRT) AND SUB
BRIGHT ADJUSTMENT
Preparation
• Input an all white 480I (15.734 KHz) signal into the VIDEO 1 input
terminal to perform the White Balance (highlight, cut-off) adjustments.
The parameters to adjust are in the CXA2150P in Service Mode.
1. Set the following:
Picture: Full Mode
Pro Mode
Color: Center
2. Adjust White Balance in the Service Mode and set the following data:
NO.NameControl FunctionAvg. Data
05RDRVR-DRIVEFix: 46
06GDRVG-DRIVEAdjust
07BDRVB-DRIVEAdjust
08RCUTR-CUT OFFFix: 41
09GCUTG-CUT OFFAdjust
10BCUTB-CUT OFFAdjust
21
5
0P
-
1
3. Adjust Sub Brightness: Input an all black signal (to IRE 7.5% set up)
480i (15.75 KHz) signal into the VIDEO 1 input terminal. Adjust the
following parameter of CXA2150P-1:
4. Check Initial Data (Important).
NO.NameControl FunctionAvg. Data
04SBRTSUB-BRIGHT20
CXA2150P-1
NO.NameControl FunctionAvg. Data
00SBOTSUB-BRT OFFSET7
12SBOFSUB-BRT OFFSE
T
63
2150P-1
5. Repeat Steps 2-4.
2-8. RASTER CENTER ADJUSTMENT
Preparation:
• Input a monoscope signal.
• Set to NTSC (DRC) mode.
1. Set to Service Mode and adjust as follows:
NO.
NameControl FunctionAvg. Data
06AGNGAGING 1, AGING 22
NO.
NameControl FunctionAvg. Data
02HSIZHoriz SizeAdjust
NO.
NameControl FunctionAvg. Data
00HBLKBlanking Enable0
CXA2150P-2
CXA2150D-2
CXA2150D-3
2. Reduce HSIZ to see sides of raster.
3. Adjust H-Center with CXA2150D-2 00.
4. Adjust to the best screen position with H-CENT and write data.
5. Restore aging, HSIZ and HBLK to original condition.
2-9. PICTURE DISTORTION ADJUSTMENTS
2-9.1. NTSC (DRC) FULL MODE
ADJUSTMENT
1. Face the picture tube in an east-west direction.