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Self Diagnosis
Supported model
SERVICE MANUAL
MODEL NAME REMOTE COMMANDER DESTINATION
BA-6 CHASSIS
CHASSIS NO.
KV-20FS100 KV-20FS100 KV-20FV300 KV-20FV300 KV-21FM100 KV-21FM100 KV-21FS100 KV-21FS100 KV-21FV300 KV-21FV300 KV-24FV300 KV-24FV300 KV-25FV300 KV-25FV300
RM-Y173 RM-Y173 RM-Y180 RM-Y180 RM-Y172 RM-Y172 RM-Y173 RM-Y173 RM-Y180 RM-Y180 RM-Y180 RM-Y180 RM-Y180 RM-Y180
US CND US CND LATIN NORTH LATIN SOUTH LATIN NORTH LATIN SOUTH LATIN SOUTH LATIN NORTH US CND LATIN NORTH LATIN SOUTH
SCC-S61A-A SCC-S59A-A SCC-S61B-A SCC-S59B-A SCC-S60E-A SCC-S60F-A SCC-S60A-A SCC-S60B-A SCC-S60D-A SCC-S60C-A SCC-S61C-A SCC-S59C-A SCC-S60G-A SCC-S60H-A
KV-24FV300
RM-Y180
TRINITRON® COLOR TELEVISION
9-965-922-03
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
TABLE OF CONTENTS
SECTION TITLE PAGE
SpeciŽcations........................................................................................................................................ 4 Warnings and Cautions ........................................................................................................................ 5 Safety Check-Out.................................................................................................................................. 6 Self-Diagnostic Function....................................................................................................................... 7 1. Disassembly 1-1. Rear Cover Removal...................................................................................................................... 9 1-2. Chassis Assembly Removal .......................................................................................................... 9 1-3. Service Position ............................................................................................................................. 9 1-4. Picture Tube Removal .................................................................................................................. 10 Anode Cap Removal Procedure.................................................................................................. 10 2. Set-Up Adjustments 2-1. Beam Landing.............................................................................................................................. 11 2-2. Convergence................................................................................................................................ 12 2-3. Focus ........................................................................................................................................... 13 2-4. Screen (G2) ................................................................................................................................. 13 2-5. Method of Setting the Service Adjustment Mode......................................................................... 14 2-6. White Balance Adjustments ......................................................................................................... 14 3. Safety Related Adjustments 3-1. X R565 ConŽrmation Method (HV Hold Down ConŽrmation) and Readjustments.................... 15 3-2. B+ Voltage ConŽrmation and Adjustment .................................................................................... 15 4. Circuit Adjustments 4-1. Setting the Service Adjustment Mode.......................................................................................... 17 4-2. Memory Write ConŽrmation Method ............................................................................................ 17 4-3. Remote Adjustment Buttons and Indicators ................................................................................ 17 Adjustment Items ........................................................................................................................ 18 4-4. ID Map Table ................................................................................................................................ 26 4-5. A Board Adjustments ................................................................................................................... 26 5. Diagrams 5-1. Circuit Boards Location................................................................................................................ 29 5-2. Printed Wiring Board and Schematic Diagram Information ........................................................ 29 5-3. Block Diagram and Schematics ................................................................................................... 30 A Board Schematic Diagram ....................................................................................................... 31 CV Board Schematic Diagram .................................................................................................... 41 HR Board Schematic Diagram .................................................................................................... 43 M3 Board Schematic Diagram .................................................................................................... 44 5-4. Semiconductors ........................................................................................................................... 46 6. Exploded Views 6-1. Chassis (KV-21FM100 ONLY)..................................................................................................... 47 6-2. Chassis (KV-20FS100/21FS100 ONLY)...................................................................................... 48 6-3. Chassis (KV-20FV300/21FV300 ONLY)...................................................................................... 49 6-4. Chassis (KV-24FV300/25FV300 ONLY)...................................................................................... 50 7. Electrical Parts List ..................................................................................................................................... 51
--3--
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
SPECIFICATIONS
KV-21FM100 (N) Power requirements Number of Inputs/Outputs Video 1) S Video 2) Y, PB, PR 3) Audio 4) Audio Out 5) Speaker output (W) Headphones 5) Power Consumption (W) In use (Max) In Standby Dimensions(W/H/D) mm in Mass kg lbs 592 x 466 x 494 mm 23 1/4 x 18 3/8 x 19 1/2 24.8 kg 54 lbs. 11 oz. KV-20FV300/ 21FV300 (N) Power requirements Number of Inputs/Outputs Video 1) S Video 2) Y, PB, PR 3) Audio 4) Audio Out 5) Speaker output (W) Headphones 5) Power Consumption (W) In use (Max) In Standby Dimensions(W/H/D) mm in Mass kg lbs 609 x 463 x 502 mm 24 x 18 1/4 x 19 3/4 27 kg. 59 lbs. 8 oz. 155W 1W 2 1 1 4 1 10W x 2 1 120V, 60Hz 115W 1W 2 0 0 2 0 3W x 2 1 120V, 60Hz
KV-21FM100 (S) 220V, 50/60Hz 2 0 0 2 0 3W x 2 1 110W 1W 592 x 466 x 494 mm 23 1/4 x 18 3/8 x 19 1/2 24.8 kg 54 lbs. 11 oz.
KV-21FS100 (S) 220V, 50/60Hz 2 0 1 4 0 5W x 2 1 115W 1W 592 x 466 x 494 mm 23 1/4 x 18 3/8 x 19 1/2 24.8 kg 54 lbs. 11 oz. KV-24FV300/ 25FV300 (N) 120V, 60Hz 2 1 1 4 1 10W x 2 1 180W 1W 762 x 625 x 570 mm 30 x 22 7/16 x 24 5/8 37 kg 81 lbs. 9 oz.
KV-20FS100/ 21FS100 (N) 120V, 60Hz 2 0 1 4 0 5W x 2 1 120W 1W 592 x 466 x 494 mm 23 1/4 x 18 3/8 x 19 1/2 24.8 kg 54 lbs. 11 oz.
KV-21FV300 (S) 220V, 50/60Hz 2 1 1 4 1 10W x 2 1 155W 1W 609 x 463 x 502 mm 24 x 18 1/4 x 19 3/4 27 kg. 59 lbs. 8 oz.
KV-25FV300 (S) 220V, 50/60Hz 2 1 1 4 1 10W x 2 1 180W 1W 762 x 625 x 570 mm 30 x 24 5/8 x 22 7/16 37 kg 81 lbs. 9 oz.
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) Y: 1.0 Vp-p, 75 ohms, sync negative; PB: 0.7 Vp-p, 75 ohms; PR Vp-p, 75 ohms. 4) 500 mVrms (100% modulation), Impedance: 47 kilohms 5) More than 408 mVrms at the maximum volume setting (variable) More than 408 mVrms (Žx); Impedance (output): 2 kilohms
Television system
American TV Standard, NTSC
Visible screen size
20/21-20 inch picture measured diagonally 24/25-24 inch picture measured diagonally
Antenna
75 ohm external terminal for VHF/UHF
Channel coverage
VHF: 2-13/ UHF: 14-69/ CATV: 1-125
Supplied Accessories
Remote Commander: RM-Y172 (KV-21FM100 ONLY) RM-Y173 (KV-20FS100/21FS100 ONLY) RM-Y180 (KV-20FV300/21FV300/24FV300/25FV300 ONLY) Size AA (R6) batteries (2) Antenna, Telescopic (KV-21FM100/21FS100/21FV300/25FV300 ONLY)
Actual screen size
20/21-21 inch measured diagonally 24/25-25 inch measured diagonally
Picture tube
FD Trinitron tube ( · ) SRS (SOUND RETRIEVAL SYSTEM) 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 trademarks 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 speciŽcations are subject to change without notice.
--4--
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
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 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.
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.
Afin d'eviter tout risque d'electrocution provenant d'un chįssis sous tension, un transformateur d'isolement doit etre utilisé lors de tout dépannage. Le chįssis de ce récepteur est directement raccordé ą l'alimentation du secteur.
! ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifies 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 identifies dans le present manuel. Suivre ces procedures lors de chaque remplacement de composants critiques, ou lorsqu'un mauvais fonctionnement suspecte.
--5--
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
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 specified 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).
To Exposed Metal Parts on Set
Trouble Light AC Outlet Box Ohmmeter Cold-water Pipe
0.15 F
1.5 K
AC Voltmeter (0.75 V)
Earth Ground
Figure A. Using an AC voltmeter to check AC leakage.
Figure B. Checking for earth ground.
--6--
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
SELF-DIAGNOSTIC FUNCTION
Self Diagnosis
Supported model
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER 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 STANDBY/TIMER LED flash 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/TIMER 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. Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a "0".
Diagnostic Item Description Power does not turn on
No. of times Self-Diagnositc Probable Cause Location STANDBY/ TIMER Display/ lamp flashes Diagnostic Result Does not light · Power cord is not plugged in. · Fuse is burned out (F601). (A Board) 2 times 2:0 or 2:1
Detected Symptoms
· Power does not come on. · No power is supplied to the TV. · AC Power supply is faulty. · Power does not come on. · Load on power line is shorted.
+B overcurrent (OCP)*
· H.OUT (Q505 OR Q506) is shorted. (A Board) · IC1751 is shorted. (CV Board) · +13V is not supplied. (A Board) · IC1545 is faulty. (A Board)
I-Prot
4 times
4:0 or 4:1
· Has entered standby state after horizontal raster. · Vertical deflection pulse is stopped. · Power line is shorted or power supply is stopped.
IK (AKB)
5 times
5:0 or 5:1
· Viedo OUT (IC1545) is faulty. · No raster is generated. (A Board) · CRT Cathode current detection reference pulse · IC001 is faulty. (A Board) output is small. · Screen (G2) is improperly adjusted.**
*If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is diagnosed first by the mircrocontroller is displayed on the screen. **Refer to Screen (G2) Adjustments in Section 2-4. of this manual. Display of Standby/Timer LED Flash Count
UU UU U
Standby/Timer LED
Diagnostic Item Flash Count* +B Overcurrent 2 times I-Prot 4 times IK (AKB) 5 times *One flash count is not used for self-diagnostic. Stopping the Standby/Timer LED Flash Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER LAMP from flashing.
--7--
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
Self-Diagnostic Screen Display For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes out" that cannot be confirmed, it is possible to bring up past occurrences of failure on the screen for confirmation. 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 Note that this differs from entering the Service Mode (Sound Volume + ). Self-Diagnostic Screen Display SELF DIAGNOSTIC 2: 000 3: N/A 4: 000 5: 001 101: N/A
Numeral "0" means that no fault was detected. Numeral "1" means a fault was detected one time only.
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
A BOARD IC001 Y/CHROMA JUNGLE FROM CV BOARD IC1751 PIN 5 A BOARD FROM IC561 PIN 7 51 IK-AKBIN
A BOARD IC545 V. OUT
A BOARD IC001 SYSTEM IO-BDAT 53
A BOARD IC002 MEMORY 5 BDA
REF 3
78 I-Prot
72 I-HLDWN
O-LED 79 DISPLAY
+B overcurrent (OCP) Occurs when an overcurrent on the +B (135V) line is detected by pin 72 of IC001 (A Board). If the voltage of pin 72 of IC001 (A Board) is less than 1V when V.SYNC is more than seven verticals in a period, the unit will automatically turn off. I-Prot Occurs when an absence of the vertical deflection pulse is detected by pin 78 of IC001 (A Board). Power supply will shut down when waveform interval exceeds 2 seconds. IK (AKB) If the RGB levels* do not balance within 2 seconds after the power is turned on, this error will be detected by IC001 (A Board). TV will stay on, but there will be no picture. *(Refers to the RGB levels of the AKB detection Ref pulse that detects 1K).
--8--
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
SECTION 1: DISASSEMBLY
1-1. REAR COVER REMOVAL
Rear Cover
KV-20FS100/21FS100/21FM100 - 4 Screws +BVTP 4x16 KV-20FV300/21FV300 - 5 Screws +BVTP 4x16 KV-24FV300/25FV300 - 6 Screws +BVTP 4x16
1-2. CHASSIS ASSEMBLY REMOVAL
1-3. SERVICE POSITION
CV Board
Claw
Chassis Assembly A Board
--9--
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
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. 1 10
Coated Earth Ground Strap
8 7 3
6 2 5 9 4
1. Discharge the anode of the CRT and remove the anode cap. 2. Unplug all interconnecting leads from the deflection yoke, neck assembly, degaussing coils and CRT grounding strap. 3. Remove the CV Board from the CRT. 4. Remove the chassis assembly. 5. Loosen the neck assembly fixing screw and remove. 6. Loosen the deflection yoke fixing screw and remove. 7. Place the set with the CRT face down on a cushion and remove the degaussing coil holders. 8. Remove the degaussing coils. 9. Remove the CRT grounding strap and spring tension devices. 10. Unscrew the four CRT fixing screws [located on each CRT corner] and remove the CRT [Take care not to handle the CRT by the neck].
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.
a
b
c
Anode Button
Turn up one side of the rubber cap in the direction indicated by arrow a . Use your thumb to pull the rubber cap firmly 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 .
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 fitting 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.
-- 10 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
SECTION 2: SET-UP ADJUSTMENTS
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. Set the controls as follows unless otherwise noted: VIDEO MODE: Standard PICTURE CONTROL: Normal BRIGHTNESS CONTROL: Normal
Perform the adjustments in order as follows: 1. Beam Landing 2. Convergence 3. Focus 4. Screen (G2) 5. White Balance Note Test Equipment Required: 1. Color Bar Pattern Generator 2. Degausser 3. DC Power Supply 4. Digital Multimeter 6. Switch over the raster signal to red and blue and confirm the condition. 7. When the position of the deflection yoke is determined, tighten it with the deflection yoke mounting screw. 8. If landing at the corner is not right, adjust by using the disk magnets.
2-1. BEAM LANDING
Before beginning adjustment procedure: 1. Degauss the entire screen. 2. Feed in the white pattern signal.
ADJUSTMENT PROCEDURE
1. Input a raster signal with the pattern generator. 2. Loosen the deflection yoke mounting screw, and set the purity control to the center as shown below: Purity Control
Purity control corrects this area.
3. Turn the raster signal of the pattern generator to green. 4. Move the deflection yoke backward, and adjust with the purity control so that green is in the center and red and blue are even on both sides.
Disk magnets or rotatable disk magnets correct these areas (a-d).
a c
b d
Deflection yoke positioning corrects these areas. b
Blue Red Green
5. Move the deflection yoke forward, and adjust so that the entire screen becomes green.
d a c
-- 11 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
2-2. CONVERGENGE
Before starting convergence adjustments: 1 Perform FOCUS, VLIN and VSIZE adjustments. 2. Set BRIGHTNESS control to minimum. 3. Feed in dot pattern.
HORIZONTAL STATIC CONVERGENCE
If the blue dot does not converge with the red and green dots, peform the following: 1. Move BMC magnet (a) to correct insufficient H.Static convergence. 2. Rotate BMC magnet (b) to correct insufficient V.Static convergence. 3. After adjusting the BMC magnet, repeat Beam Landing Adjustment.
VERTICAL STATIC CONVERGENCE
1. Adjust V. STAT magnet to converge red, green and blue dots in the center of the screen (Vertical movement adjust S V.STAT RV1750 to converge).
Center dot
V.STAT R G B BMC MAGNET
RG B
RV1750 V.STAT PURITY
V.STAT magnet
2. Tilt the V. STAT magnet and adjust static convergence to open or close the V. STAT magnet.
b
When the V. STAT magnet is moved in the direction of arrow a and b, red, green, and blue dots move as shown below:
BMC magnet a
1 b
a b
a B G R a R
b B G R GB b B GR
2
a
b
3 b a R b
a B G B G
b
R
-- 12 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
DYNAMIC CONVERGENCE ADJUSTMENT
Before performing this adjustment, perform Horizontal and Vertical Static Convergence Adjustment. 1. Slightly loosen deflection yoke screw. 2. Remove deflection yoke spacers. 3. Move the deflection yoke for best convergence as shown below:
R B G B R R G B B G R G G R B G B R
4. Adjust XCV core to balance X axis. 5. Adjust YCH VR to balance Y axis. 6. Adjust vertical red and blue convergence with V.TILT (TLV VR.) Note: Perform adjustment 3-6 while tracking items 1 and 2.
SCREEN-CORNER CONVERGENCE
1. Affix a permalloy assembly corresponding to the misconverged areas:
b
a
a
B G R R G B
b
a-d: screen-corner misconvergence c d c d
B R G R B
G
B R G
2-3. FOCUS
1. Adjust FOCUS control for best pictures.
G
R B
4. Tighten the deflection yoke screw. 5. Install the deflection yoke spacers.
TLH PLATE ADJUSTMENT
1. Input crosshatch pattern. 2. Adjust PICTURE QUALITY to standard, PICTURE and BRIGHTNESS to 50%, and OTHER to standard. 3 Adjust the Horizontal Convergence of red and blue dots by tilting the TLH plate on the deflection yoke. Focus (FV)
RV1750 TLH Plate V.STAT
Screen (G2)
CV Board
2-4. SCREEN (G2)
XCV YCH (TLV) TLV
1. Input a dot pattern. 2. Set the PICTURE and BRIGHTNESS controls at minimum and COLOR control at normal. 3. Adjust SBRT, GCUT, BCUT in service mode with an oscilloscope as shown below so that voltages on the red, green, and blue cathodes are 160 ± 2VDC.
160 2VDC Pedestal
BR R B TLH+ (R)(B) (B)(R) TLH-
Ground
-- 13 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
2-5. METHOD OF SETTING THE SERVICE ADJUSTMENT MODE SERVICE MODE PROCEDURE
1. Standby mode (power off). 2. Press Display Channel 5 Sound Volume + Power on the Remote Commander (press each button within a second).
SERVICE ADJUSTMENT MODE ON
1. The CRT displays the time being adjusted.
Category Display Item Display Item
Mode
service Signal Type ntsc
defl
hsiz
16
vchp
00000000
00000000
2. Press 1 or 4 on the Remote Commander to select the time. 3. Press 3 or 6 on the Remote Commander to change the data. 4. Press MUTING then ENTER to save into the memory.
SERVICE ADJUSTMENT MODE MEMORY
Turn the set off then on to exit Service Adjustment Mode.
Mode Category service Signal Type ntsc vchp 00000000 defl Display Item Item Data hsiz 16 write 00000000 ENTER Red MUTING Green
2-6. WHITE BALANCE ADJUSTMENTS
1. Input an entire white signal with burst. 2. Set to Service Adjustment Mode. 3. Set the PICTURE and BRIGHTNESS to minimum. 4. Adjust with SBRT if necessary. 5. Select GCUT and BCUT with 1 and 4 . 6. Adjust with 3 and 6 for the best white balance. 7. Set the PICTURE and BRIGHTNESS to maximum. 8. Select GDRV and BDRV with 1 and 4 . 9. Adjust with 3 and 6 for the best white balance. 10. To write into memory, press MUTING then ENTER .
-- 14 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
SECTION 3: SAFETY RELATED ADJUSTMENTS 3-1. X R565 CONFIRMATION METHOD (HV HOLD-DOWN CONFIRMATION) AND READJUSTMENTS
The following adjustments should always be performed when replacing the following components which are marked with Y on the schematic diagram:
HOLD-DOWN READJUSTMENT
If the setting indicated in Step 2 of Hold-Down Operation Confirmation cannot be met, readjustment should be performed by altering the resistance value of R565 component marked with X.
T585 FBT
Part Replaced ( ) DY, T585, CRT, IC001, IC561, C507, C508, C506, T511, L510, C588, L588, C566, C561, C563, D567, D568, D566, R567, R568, R565, R566, R562, R563, R561, R528....................A Board
Adjustment ( ) HV HOLD-DOWN R565 amPmeter 3.0 mA DC range ABL + A IABL -
PREPARATION BEFORE CONFIRMATION
1. Using a Variac, apply AC input voltage: 120 ±2 VAC. 2. Turn the POWER switch ON. 3. Input a white signal and set the PICTURE and BRIGHTNESS controls to maximum. 4. Confirm that the voltage between C566 (+) or TP30 and ground is more than 97.0 VDC for 20" and 105 VDC for 24".
3-2. B+ VOLTAGE CONFIRMATION AND ADJUSTMENT
Note: The following adjustments should always be performed when replacing the following components, which are marked with Y on the schematic diagram on the A Board: A BOARD: IC600, PH602
HOLD-DOWN OPERATION CONFIRMATION
1. Connect the current meter between Pin 11 of the FBT (T585) and the PWB land where Pin 11 would normally attach (See Figure 1 on the next page). 2. Input a dot signal and set PICTURE and BRIGHTNESS to minimum: IABL = 100 ± 100µA. 3. Confirm the voltage of A Board TP-23 is 135.6 ± 1V. 4. Connect the digital voltmeter and the DC power supply via Diode 1SS119 to C566 (+) and ground (See Figure 1 on next page). 5. Increase the DC power voltage gradually until the picture blanks out. 6. Turn DC power source off immediately. 7. Read the digital voltmeter indication (standard < 117VDC). 8. Input a white signal and set PICTURE and BRIGHTNESS to maximum: IABL = 1350 ± 100µA. 9. Repeat steps 4 to 7.
1. 2. 3. 4.
Using a Variac, apply AC input voltage: 130 + 2.0 / - 0.0 VAC. Input a DOT pattern at Q.C. Set the PICTURE and the BRIGHTNESS controls to minimum. Confirm the voltage of A Board between TP-23 & Ground is <135.6 ± 1 VDC. 5. If step 4 is not satisfied, replace the components listed above, then repeat Steps 1 3.
-- 15 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
DIGITAL MULTIMETER
POWER SUPPLY
+ -
+ 1SS119
X R565
C566
( PS401
) R3 54 R3 53 C4 50 R3 57 R0 48 R1 41 H.PROT TP30 R6 56 R5 57 D566
Q0 42 C1 22
R1 51 R3 47 R609 J1 R2 L7 30 IC565 C3 50 C651 L7 31 C511 R3 52 L525
R2 58 TP33
HS522 Q522
R2 59 C6 52 C6 51
D2 58 Q2 51
C2 59
R575
D526
B C525
E R4 56 D545 C4 54 IC561 C7 51
C5 41 C512 L511 C2 58 T511
R1 50
6 C526 C2 57 C4 55 R4 58
2
C9 57
D6 58 D6 57 R7 50 R2 56 R7 54
R6 58
1 R4 50 R4 57 R0 92 7 R4 59 D006 C4 57 V.O UT IC545
TP16
D6 59 R6 59
C625
D6 52 R1 55 C513 R8 59 L513 C0 52 C514 TP25 B R0 52 L1 55
R4 51
TP17
C9 55
D3 60
L516 C4 58 R0 91 R8 53 J55 R0 C582 L582
1
TP24
E R9 53
D598 R0 54 C0 54 R512 R588 6 TP19 GN D HE ATE R - 13 V G ND GN D R514 R9 58
5 3 R 0
C505
0 C9 50
5 1 R 9
B Q590
1
3
R9 54 TP31 C624
2 00V
E H DT 6 4 R0 56 T505
L588 VD Y+ TP21
N/C
GN D
+ 13V 135V
T585 FBT
D0 61
VD YR505 TP27 N /C
602 TP23
H-OUT Q505 E
B
- U H O T 5 6 Q 0
HD YTP28 HD YH-O UT ABL TP20
TP22 C506 C1 60
C1 50
C
HDY +
C618
D506 R8 51 C4 60 D624 TP29
62 0 64 0
HDY +
CN515
TP23 AMMETER 3mA dc range A + Figure 1
-- 16 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
SECTION 4: CIRCUIT ADJUSTMENTS ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER
Use the Remote Commander (RM-Y172, RM-Y173, RM-Y180) to perform the circuit adjustments in this section. Test Equipment Required: 1. Pattern generator 2. Frequency counter 3. Digital multimeter 4. Audio oscillator
4-1. SETTING THE SERVICE ADJUSTMENT MODE
1. Standby mode (Power off). 2. Press the following buttons on the remote commander within a second of each other: Channel 5 Sound Volumne + Power Display
4-2. MEMORY WRITE CONFIRMATION METHOD
1. After adjustment, pull out the plug from the AC outlet, then replace the plug in the AC outlet again. 2. Turn the power switch ON and set to Service Mode. 3. Call the adjusted items again to confirm they were adjusted.
SERVICE ADJUSTMENT MODE ON
1. The CRT displays the item being adjusted.
Mode Category service Signal Type ntsc vchp 00000000 00000000 defl Display Item Item Data hsiz 16
4-3. REMOTE ADJUSTMENT BUTTONS AND INDICATORS
MUTING
(Enter into memory)
POWER
(Service Mode)
DISPLAY
2. Press 1 or 4 on the Remote Commander to select the item. 3. Press 3 or 6 on the Remote Commander to change the data. 4. Press MUTING then ENTER to write into memory. (Service Mode) 3 Item (Data up) 6 Item (Data down) 5 (Device item down)
SERVICE ADJUSTMENT MODE MEMORY
Mode Category service Signal Type ntsc vchp 00000000 defl Display Item Item Data hsiz 16 write 00000000 ENTER Red MUTING Green
1 Disp. (Item up) 2 (Device Item Up) 4 Disp. (Item down) 8 (Initialize)
ENTER
(Enter into memory) 0 (Remove from memory)
1. Press 8 then ENTER on the Remote Commander to initialize.
Mode
Category defl
Display Item hsiz 16 write
Item Data MUTING Green
VOLUME (+)
(Service Mode)
service Signal Type ntsc vchp
00000000
00000000
ENTER
Red
RM-Y180
Carry out Step 1 when adjusting IDs 0-6 and when replacing and adjusting IC002
2. Turn set off then on to exit Service Adjustment Mode.
-- 17 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
ADJUSTMENT ITEMS (1 OF 8)
DEVICE "DEF" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 OSD HSIZ HPOS VSIZ VPOS VLIN SCOR VBOW VANG TRAP PAMP UPIN LPIN TROT HBLK LBLK RBLK VBLK HMSK HDW AFC AFC1 AFCW CDMD HSS VSS SLDN SLUP JPSW HOSC EHT EHTG DETAIL H SIZE(EW DC) H POSITION V RAMP SIZE V POSITION(RAMP DC)not useful V LINEARITY S CORRECTION BOW ANGLE EW TRAPESIUM EW PIN UPPER PIN LOWER PIN TROT H BLK mode select HBLK front timing HBLK rear timing V BLK width TOP VEND(when MACROVISION)prevent OFF H PULSE WIDTH(25u/19u) AFC GAIN AFC1 TIME CONSTANT AFC1 PULL IN WIDE V DET WINDOW SW TIMING SYNC SLICE LEVEL(H sepa) SYNC SLICE LEVEL(V sepa) Auto Slice level DOWN Auto Slicelevel UP Jump SW H VCO fo ADJUST EHT EHT MODE Range (DEC) 00-63 00-63 00-63 00-63 00-63 00-63 00-63 00-63 00-63 00-63 00-63 00-63 00-255 00-01 00-63 00-15 00-03 00-01 00-01 00-01 00-07 00-01 00-03 00-03 00-03 00-03 00-01 00-01 00-255 00-15 00-01 Initial Data 20/21" 25 41 25 34 36 39 36 35 29 39 28 29 128 0 11 35 0 0 1 0 3 1 1 0 3 0 0 0 5 6 0 Initial Data 24/25" 38 30 33 28 44 40 31 33 32 41 29 29 128 0 11 34 0 0 1 0 3 1 1 0 3 0 0 0 5 6 0
DEVICE "16:9" Item# 1 2 3 4 5 OSD PAMP UPIN LPIN ACLV ABLV EW PIN UPPER PIN LOWER PIN ACL VTH ABL VTH DETAIL Range (DEC) 00-63 00-63 00-63 00-03 63-00 Initial Data 20/21" 59 15 21 0 58 Initial Data 24/25" 59 15 21 0 58
DEVICE "VP1" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 OSD RDRV GDRV BDRV RCUT GCUT BCUT SCON SHUE SCOL SBRT RON GON BON BLLV MTRX AXIS SSHO SSHP SHPF DETAIL R DRIVE G DRIVE when Color Temp. is "Cool" and "Neutral" B DRIVE when Color Temp. is "Cool" and "Neutral" Range (DEC) 00-127 00-127 00-127 00-1023 00-1023 00-1023 00-127 00-127 00-127 00-255 00-01 00-01 00-01 00-03 00-03 00-63 00-63 00-63 00-03 Initial Data 20/21" 55 38 47 130 90 72 20 8 17 40 1 1 1 1 2 48 17 26 1 Initial Data 24/25" 75 65 63 130 90 72 20 8 17 40 1 1 1 1 2 48 17 26 1
CONTRAST LEVEL TINT COLOR LEVEL BRIGHT R OUTPUT MUTE G OUTPUT MUTE B OUTPUT MUTE BLUE STRETCH(00:no <-> 11:deep) MATRIX RATIO SELECT R-Y PHASE OFFSET SHARPNESS GAIN(OVER) SHARPNESS GAIN(PRE) SHRPNESS fo(00:2 CLK <-> 11:5 CLK)
-- 18 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
ADJUSTMENT ITEMS (2 OF 8)
DEVICE "VP1" Item# 20 21 22 23 24 25 26 27 28 29 30 31 OSD SHCL SHMX ACLV ABLV AKBD AKBS REFP YNRC BKON BKTH BKAR BKSP DETAIL SHARPNESS CPRING LEVEL SHARPNESS LIMITTER LEVEL ACL VTH ABL VTH AKB Self Diagnostic Counter(@1sec) AKB H/W S/W Switch AKB REFPLS timing YNR LIMITER LEVEL BLACK STRETCH ON BLACK STRETCH DETECTOR TRESH LEVEL BLACK STRETCH DETECTOR TRESH AREA BLACK STRETCH START POINT Range (DEC) 00-15 00-15 00-03 00-63 00-07 00-02 00-01 00-15 00-01 00-255 00-03 00-03 Initial Data 20/21" 0 15 0 0 0 1 1 15 1 22 1 3 Initial Data 24/25" 0 15 0 0 0 1 1 15 1 22 1 3
DEVICE "VP2" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 OSD VMLO VMHI VMDL VMPL VMWD VMCL VMMX CKLV CKON ALFA YCMD VACL VAGA VAMX GAMM YDLY CDLY YOFF CBPF CLIM YFSL CFSL BGPP NRCH NRCL NRVL NRVH GDOF BDOF GCOF BCOF DCTV DCTG DETAIL VM LEVEL at "Low" Setting VM LEVEL at "High" Setting VM DELAY VM PORALITY VM WIDTH VM CORING LEVEL VM LIMITER LEVEL COLOR KILLER VTH FORCE KILLER ADAPTIVE DET SENSITIVITY YC SEPA FORCE SELECT(00:ADAPTIVE 01:H 10:V 11:HV) V APERTURE CORING LEVEL V APERTURE GAIN LEVEL V APERTURE LIMITER LEVEL GANMA(00:no <-->11:deep) Y DELAY TIME C DELAY Y OUTPUT MUTE C BPF fo HI C OUTPUT LIMITTER Y BAND WIDTH C BAND WIDTH BGP(for C DECODER)TIMING NOISE DET TIME CONSTANT NOISE DET TIME CONSTANT NOISE DET VTH NOISE DET VTH G DRIVE B DRIVE G CUTOFF B CUTOFF DCTRANSFER VTH DCTRANSFER GAIN Range (DEC) 00-15 00-15 00-15 00-01 00-03 00-15 00-15 00-127 00-01 00-03 00-03 00-15 00-15 00-15 00-03 00-03 00-03 00-01 00-01 00-15 00-03 00-03 00-31 00-03 00-255 00-255 00-255 00-31 00-31 00-31 00-31 00-127 00-31 Initial Data 20/21" 10 15 6 0 0 0 15 1/YUV:0 0 2 0 0 Soft Cont'l 3 Soft Cont'l 3/YUV:3 2/YUV:2 0 0/YUV:0 15 0 0 8 0 8 16 0 18 31 02 00 5 Soft Cont'l Initial Data 24/25" 10 15 6 0 0 0 15 1/YUV:0 0 2 0 0 Soft Cont'l 3 Soft Cont'l 3/YUV:3 2/YUV:2 0 0/YUV:0 15 0 0 8 0 8 16 0 18 31 02 00 5 Soft Cont'l
-- 19 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
ADJUSTMENT ITEMS (3 OF 8)
DEVICE "VIVID" Item# 1 2 3 4 5 6 7 8 9 10 OSD VPIC VBRI VCOL VHUE VSHA VVM VTRI VAPA VGMA DCTG Picture(VIVID) Brightness(VIVID) Color(VIVID) Hue(VIVID) Sharpness(VIVID) VM(VIVID) Color Temp(VIVID) Aperture G(VIVID) Gamma(VIVID) DCT LV(VIVID) DETAIL Range (DEC) 00-63 00-63 00-63 00-63 00-63 00-02 00-02 00-15 00-03 00-03 Initial Data 20/21" 63 31 31 31 31 2 0 7 3 16 Initial Data 24/25" 63 31 31 31 31 2 0 7 3 16
DEVICE "STD" Item# 1 2 3 4 5 6 7 8 9 10 OSD VPIC VBRI VCOL VHUE VSHA VVM VTRI VAPA VGMA DCTG Picture(STANDARD) Brightness(STANDARD) Color(STANDARD) Hue(STANDARD) Sharpness(STANDARD) VM(STANDARD) Color Temp(STANDARD) Aperture G(STANDARD) Gamma(STANDARD) DCT LV(STANDARD) DETAIL Range (DEC) 00-63 00-63 00-63 00-63 00-63 00-02 00-02 00-15 00-03 00-03 Initial Data 20/21" 50/FEFS:63 37/FEFS:31 28/FEFS:31 31/FEFS:31 31/FEFS:31 1/FEFS:2 1/FEFS:0 7/FEFS:7 3/FEFS:3 16/FEFS:16 Initial Data 24/25" 50/FEFS:63 37/FEFS:31 28/FEFS:31 31/FEFS:31 31/FEFS:31 1/FEFS:2 1/FEFS:0 7/FEFS:7 3/FEFS:3 16/FEFS:16
DEVICE "MOVIE" Item# 1 2 3 4 5 6 7 8 9 10 OSD VPIC VBRI VCOL VHUE VSHA VVM VTRI VAPA VGMA DCTG Picture(MOVIE) Brightness(MOVIE) Color(MOVIE) Hue(MOVIE) Sharpness(MOVIE) VM(MOVIE) Color Temp(MOVIE) Aperture G(MOVIE) Gamma(MOVIE) DCT LV(MOVIE) DETAIL Range (DEC) 00-63 00-63 00-63 00-63 00-63 00-02 00-02 00-15 00-03 00-03 Initial Data 20/21" 31 54 25 31 31 0 2 7 3 16 Initial Data 24/25" 31 54 25 31 31 0 2 7 3 16
DEVICE "SPORTS" Item# 1 2 3 4 5 6 7 8 9 10 OSD VPIC VBRI VCOL VHUE VSHA VVM VTRI VAPA VGMA DCTG Picture(SPORTS) Brightness(SPORTS) Color(SPORTS) Hue(SPORTS) Sharpness(SPORTS) VM(SPORTS) Color Temp(SPORTS) Aperture G(SPORTS) Gamma(SPORTS) DCT LV(SPORTS) DETAIL Range (DEC) 00-63 00-63 00-63 00-63 00-63 00-02 00-02 00-15 00-03 00-03 Initial Data 20/21" 63 31 34 31 31 2 0 7 3 16 Initial Data 24/25" 63 31 34 31 31 2 0 7 3 16
-- 20 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
ADJUSTMENT ITEMS (4 OF 8)
DEVICE "Y" Item# 1 2 3 4 5 6 7 8 9 10 11 OSD COFI YNRS YTHR Y2D 2DFX CLPS VLPF CLPF BKHS BPFB BPFF DETAIL 0:4 Linedelaies 1:2 Linedelaies YNR ON Y SIGNAL GENERATE from 2DYCS Y SIGNAL GENERATE from 2DYCS C SIGNAL GENELATE from H/V BPF only Y CLAMP TIME CONSTANT Y_LPF(ANALOG) fo Ajust C_LPF(ANALOG) fo Ajust BLACK STRETCH HYSTERISYS YCS HBPF SELECT(BACK) YCS HBPF SELECT(FRONT) Range (DEC) 00-01 00-01 00-01 00-01 00-01 00-01 00-03 00-03 00-31 00-03 00-01 Initial Data 20/21" 0 0 0 0 1 1 3 3 1 1 1 Initial Data 24/25" 0 0 0 0 1 1 3 3 1 1 1
DEVICE "C" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 OSD FORG FSEL ACTL A1FL A1FH A1ON MV MV1S MV2S ACCS KILS AASL BASL ATIM VMSK A3ON INTE SIN CKVT XFFR ACCV BWSL BWDT A23E A2ON A3ON A2FL A2FH A3FL A3FH AXTH ACTH AVAV B2TH DETAIL CHROMA DECODER PHASE SELECT CHROMA DECODER CLK SELECT ANALOG ACC AMP MAX GAIN ANALOG ACC hysteresis ANALOG ACC AMP ON LEVEL MACROVISION(BURST) DET TRESH MACROVISION(BURST) DET ON MACROVISION(BURST) DET POSITION ACC ON/OFF KILLER DET SELECT C DECODER TIME CONSTANT(32,16,8,1H) ACC TIME CONSTANT ANALOG ACC HISTERISYS SELECT ACC V BLK OFF WIDTH ACC MAX GAIN C DECODER INTRGRATOR ENABLE C DECODER PHASE V ENABLE PLL STOP BURST LEVEL VCXO FORCE FREERUN C DECODER PHASE V ENABLE KILLER DET SELECT PLL KILLER VTH AMP2,3 ON/OFF ENABLE(0 FIX) ABL VTH ACL VTH AMP2 OFF LEVEL lower AMP2 OFF LEVEL upper AMP3 OFF LEVEL lower AMP3 OFF LEVEL upper AXS HYS ROM HYS AVE SEL AV B2COMP Range (DEC) 00-03 00-01 00-03 00-255 00-01 00-127 00-15 00-01 00-01 00-01 00-01 00-03 00-03 00-03 00-07 00-01 00-01 00-01 00-03 00-01 00-01 00-01 00-03 00-01 00-127 00-127 00-255 00-01 00-255 00-01 00-63 00-63 00-03 00-127 Initial Data 20/21" 0 0/YUV:0 3 34 0 12 0 1 1 0/YUV:1 0/YUV:1 3 0 0 0 0 0 0 1 0/YUV:1 1 1/YUV:1 0/YUV:3 1 12 12 34 0 34 0 30 10 3 0 Initial Data 24/25" 0 0/YUV:0 3 34 0 12 0 1 1 0/YUV:1 0/YUV:1 3 0 0 0 0 0 0 1 0/YUV:1 1 1/YUV:1 0/YUV:3 1 12 12 34 0 34 0 30 10 3 0
-- 21 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
ADJUSTMENT ITEMS (5 OF 8)
DEVICE "RGB" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 OSD AMUT PMUT VBLK CORL CORH COGL COGH COBL COBH ABLS ACLS ALSP ALRS ALAS ABLG ALS2 AKBS AKBP OSDL MPXS CXUV UVIN UVOS ACL HBLS VENS UOFS VOFS AABL AABG AALG AABS AALS RGB POWER ON MUTE RGB MUTE(EXCEPT OSD) R CUTOFF lower R CUTOFF upper G CUTOFF lower when Color Temp. is "Cool" and "Neutral" G CUTOFF upper when Color Temp. is "Cool" and "Neutral" B CUTOFF lower when Color Temp. is "Cool" and "Neutral" B CUTOFF upper when Color Temp. is "Cool" and "Neutral" ABL SELECT (ON:00, OFF:01) ACL ON (ON:00, OFF:01) ACL SPEED ACL RECOVER SPEED ACL ATACK SPEED ABL GAIN ACL ATACK SPEED(2) AKB MODE AKB PULSE HEIGHT OSD LIMMIT SELECT UV MULTIPLEX ON YC/YUV SELECT U/V INVERT UV OFFSET CANCELER ON SOFT ACL CONTROLE H BLK OFF V-latch OFF U IN OFFSET V IN OFFSET ANALOG ABL THRESHOLD LEVEL CONTROL ANALOG ABL GAIN CONTROL ANALOG ACL GAIN CONTROL ANALOG ABL ON/OFF CONTROL (ON:01, OFF:00) ANALOG ACL ON/OFF CONTROL (ON:01, OFF:00) DETAIL Range (DEC) 00-01 00-01 00-01 00-255 00-01 00-255 00-01 00-255 00-01 00-01 00-01 00-03 00-15 00-15 00-15 00-03 00-01 00-63 00-01 00-01 00-01 00-01 00-01 00-63 00-01 00-01 00-15 00-15 00-15 00-01 00-01 00-01 00-01 Initial Data 20/21" 0 1 0 200 0 200 0 200 0 0 1 1 2 9 15 2 1 55 0 0/YUV:0 0/YUV:1 0/YUV:0 0/YUV:0 63 0 0 4 9 0 0 0 0 1 Initial Data 24/25" 0 1 0 200 0 200 0 200 0 0 1 1 2 9 6 2 1 55 0 0/YUV:0 0/YUV:1 0/YUV:0 0/YUV:0 63 0 0 4 9 0 0 0 0 1
-- 22 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
ADJUSTMENT ITEMS (6 OF 8)
DEVICE "DEFD" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 OSD VSTP HFFR HFUP VPHA JSWW EWG EWCL EWDI XF0A BGST SKWI XPHA SKEW HRMP RPLU RPLB XF0B RPLS SSM VSAG AFC2 VRFL SSLP IMTS XPLU 8FSC 4FS2 EWVR VLOF 1WIN BGPC MHDL BFRE ANGG ANGT DOSD ANGS HRPP VF50 CLKS VBHK DSYC VPW QSW ADTY DTH HBSW DSCS DETAIL V OUTPUT STOP AFC1 FORCE FREERUN H FREERUN FREQUENCY UP(700Hz) V PHASE(V POSITION ADJUST) Jump Pulse Width EWV AD OUTPUT LEVEL(6db) EW/VRAMP DA CLOCK SELECT EW/VRAMP DA DITHER VCXO FREERUN ADJUST BGP(for PLL) TIMING Skew correcter refernce phase VCXO PHASE ADJUST Skew correcterphase controle AFC2 TIME CONSTANT REF PLL TIME CONSTANT REF PLL TIME CONSTANT VCXO Fo ADJUST REF VCO FB LOOP SELECT SyncSepaMasking CONTROL V-SAG prevent ON AFC2 GAIN CONTROL V RAMP FILTER SWITCHING OFF LPF pre SYNC SEPA ON/OFF I.M. TEST ACP TIME CONSTANT 8fscCLK Skew OFF 4fscCLK Skew OFF DSDAC V RESET Enable IIC V Latch OFF(for TEST) FORCE 1Window ANGLE Return current up ANGLE Return current up timing force V FREERUN ANGLE Retun current up ANGLE Retun current up timing Digital OSD ON AFC2 ANGLE/BOW INHIBIT FRAMP RRAMP H OUT CONTROL RANGE FORCE V FREERUN 50Hz TBC clock system select V BLK HALF KILL CVBS INPUT CONTROL V Pulse Wide MODULATOR FEEDBACK GAIN CONTROL CLOCK DUTY CONTROL at IIC QSWITCH=ON DITHER THRESHOLD LEVEL CONTROL at IIC AUTOD=ON HBLK REFERENCE AFC1/AFC2 ·DAC CLOCK ON/OFF CONTROL Range (DEC) 00-01 00-01 00-01 00-15 00-01 00-01 00-03 00-01 00-15 00-63 00-01 00-15 00-07 00-03 00-07 00-01 00-03 00-01 00-01 00-01 00-03 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-01 00-15 00-01 00-03 00-01 00-01 00-01 00-01 00-01 00-03 00-01 00-01 Initial Data 20/21" 0 0 0 0 0 0 2/YUV:2 0 0 17 0/YUV:0 10 0/YUV:3 0 3 1 0 0 0 0 0 0 0 0 1 1/YUV:1 1/YUV:1 0 0 1 0 1 0 1 0 0 0 8 0 0 0 0 1 0 0 1 0 0 Initial Data 24/25" 0 0 0 0 0 0 2/YUV:2 0 0 17 0/YUV:0 10 0/YUV:3 0 3 1 0 0 0 0 0 0 0 0 1 1/YUV:1 1/YUV:1 0 0 1 0 1 0 1 0 0 0 8 0 0 0 0 1 0 0 1 0 0
-- 23 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
ADJUSTMENT ITEMS (7 OF 8)
DEVICE "OTHER" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 OSD PCLP VRT AM DME DM 14HI 14HD 28I 28D ADCD CLKS HDSL CPSL CPCL CPCP DUMY DETAIL SYNC TIP/PEDESTAL CLAMP SELECT ADC REFERENCE (00:1.15Vpp 01:1.25Vpp 10:1.35Vpp 11:1.45Vpp) INTERIGENT MONITOR OUTPUT SELECT(analog) INTERIGENT MONITOR OUTPUT SELECT(degital) INTERIGENT MONITOR OUTPUT SELECT(degital) 4fsc(Skew)CLK POLARITY 4fscCLK(Skew)CLK DELAY ADJUST 8fscCLK POLARITY 8fscCLK DELAY ADJUST ADC CLK DELAY ADJUST AD/LOGIC CLK SWAP HD OUT(for MCU)SELECT PLL CP LATCH ON PLL CP LATCH CLOCK PLL CP LATCH POLARTY DUMMY Range (DEC) 00-01 00-03 00-15 00-01 00-31 00-01 00-03 00-01 00-03 00-03 00-01 00-01 00-01 00-01 00-01 00-0F Range (DEC) 00-03 00-63 00-63 00-03 00-63 Initial Data 20/21" 0 1/YUV:1 0 0 0 0 1 1 1 1/YUV:0 0/YUV:0 1 0 0 0 1 Initial Data 20/21" 0 27 27 0 27 Initial Data 24/25" 0 1/YUV:1 0 0 0 0 1 1 1 1/YVV:2 0/YUV:0 1 0 0 0 1 Initial Data 24/25" 0 27 27 0 27
DEVICE "OSD" Item# 1 2 3 4 5 OSD HT OSLR OSLG OSDC OSDB HALF TONE LEVEL R OSD LEVEL G OSD LEVEL B OSD LEVEL DETAIL
DEVICE "S/W ADKB" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 OSD SRIL SRIH SGIL SGIH SBIL SBIH SLM1 SLM2 SLM3 SAD1 SAD2 SBIT SNOP SERL SPWC SLMC SPWL SPMT SEEP DETAIL S/W AKB RED OUTPUT Lower S/W AKB RED OUTPUT Upper S/W AKB GREEN OUTPUT Lower S/W AKB GREEN OUTPUT Upper S/W AKB BLUE OUTPUT Lower S/W AKB BLUE OUTPUT Upper S/W AKB LIMIT DATA 1 S/W AKB LIMIT DATA 2 S/W AKB LIMIT DATA 3 S/W AKB ADD DATA 1 S/W AKB ADD DATA 2 S/W AKB BIT SHIFT DATA S/W AKB POWER ON NOP TIMER COUNTER DATA S/W AKB BIT ERROR JUDGE LEVEL S/W AKB ERROR JUDGE COUNTER DATA S/W AKB LIM2/LIM3 JUDGE COUNTER DATA S/W AKB POWER ON MUTE OFF JUDGE LEVEL S/W AKB POWER ON MUTE EXIT TIMER DATA(@100ms) S/W AKB INITIAL DATA EEPROM WRITE TIMER(@1sec) Range (DEC) 00-255 00-01 00-255 00-01 00-255 00-01 00-255 00-255 00-255 00-255 00-255 00-05 00-FF 01-80 01-FF 01-FF 01-80 00-FF 00-FF Initial Data 20/21" Soft Cont'l Soft Cont'l Soft Cont'l Soft Cont'l Soft Cont'l Soft Cont'l 4 29 130 1 1 0 1 124 2 10 30 120 20 Initial Data 24/25" Soft Cont'l Soft Cont'l Soft Cont'l Soft Cont'l Soft Cont'l Soft Cont'l 4 29 130 1 1 0 1 124 2 10 30 120 20
-- 24 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
ADJUSTMENT ITEMS (8 OF 8)
DEVICE "AUDIO PROCESSOR" Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 OSD SBAL SBAS STRE SRL BBOL BBOH BBSL BBSH BBGL BBGH BBTL BBTH VFIX AGCL Sub Balance Sub Bass Sub Treble Surround Level Surround Off-BBE Low Surround Off-BBE High Simulate BBE Low Simulate BBE High WOW Game BBE Low WOW Game BBE High SRS BBE Low SRS BBE High Audio output fix data AGC level DETAIL Range (DEC) 00-07 00-07 00-07 00-01 00-15 00-15 00-15 00-15 00-15 00-15 00-15 00-15 00-255 00-03 Initial Data 20/21" 4 0 0 0 0 3 0 0 7 3 0 2 240 2 Initial Data 24/25" 4 0 0 0 4 5 0 0 8 3 0 2 240 2
DEVICE "MICROPROCESSOR" Item# 1 2 3 4 5 6 7 OSD DISP CCHP HRLW HRHG HSLW HSHG HSDT DETAIL OSD horizontal offset Closed Caption Horizontal Position Low limit of H-pulse counting window (RF) High limit of H-pulse counting wondow (RF) Low limit of H-pulse counting window (S-Video) High limit of H-pulse counting wondow (S-Video) H-pulse Detection(S-Video) Range (DEC) 00-127 00-7E 00-255 00-255 00-255 00-255 00-255 Initial Data 20/21" 53 73 16 64 16 64 8 Initial Data 24/25" 53 73 16 64 16 64 8
DEVICE "FEATURE" Item# OSD ID0 ID1 ID2 ID3 ID4 ID5 ID6 ID7 Language related Video ralated Audio related Miscellaneous Miscellaneous Miscellaneous Miscellaneous Miscellaneous DETAIL Range (DEC) 00-255 00-255 00-255 00-255 00-255 00-255 00-255 00-255 Initial Data 20/21" SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP
ID Number id5 19
Initial Data 24/25" SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP SEE ID MAP
Notes: Range (DEC) shows the range of possible setting for each Adjustment Mode. Initial Data shows the standard settings for each Adjustment Mode.
Mode Signal Type Chip Version
Function id's
Data
service ntsc
00010011
M37280MK-00SP VERB.O
-- 25 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
4-4. ID MAP TABLE
Model KV-20FS100 KV-20FS100 KV-20FV300 KV-20FV300 KV-21FS100 KV-21FM100 KV-21FV300 KV-24FV300 KV-24FV300 KV-25FV300 Destination US CND US CND E E E US CND E ID-O 89 89 89 89 81 81 81 89 89 81 ID-1 7 7 23 23 7 3 23 23 23 23 ID-2 65 65 231 231 81 64 231 231 231 231 ID-3 33 49 35 51 129 129 131 35 51 131 ID-4 128 128 128 128 160 160 160 128 128 160 ID-5 48 48 48 48 48 16 48 48 48 48 ID-6 0 0 0 0 0 0 0 0 0 0 ID-7 150 150 150 150 214 198 214 150 150 214
86 ± 3Vpp for 20 inch and 96 ± 3Vpp for 24 inch.
4-5. A BOARD ADJUSTMENTS H. FREQUENCY (FREE RUN) CHECK
1. Input a TV mode (RF) with no signal. 2. Connect a frequency counter to base of Q502 (TP-25 H. DRIVE) on the A Board. 3. Check H. Frequency for 15735 ± 200 Hz.
8. Reset AALS, ABLS, GON and BON values to "1". AALS: ON (1) ABLS: ON (0) R ON: ON (1) G ON: ON (1) B ON: ON (1) 9. Press MUTING then ENTER to save into the memory.
DISPLAY POSITION ADJUSTMENT (DISP) V. FREQUENCY (FREE RUN) CHECK
1. Select video 1 with no signal input. 2. Set the conditions for a standard setting. 3. Connect the frequency counter to TP-27 (V OUT) or CN515 pin 6 (V DY+) and ground on the A Board . 4. Check that V. Frequency shows 60 ± 4 Hz. Input a color-bar signal. Set to Service Adjustment Mode. Select DISP with 1 and 4 . Adjust values of DISP with 3 and 6 to adjust characters to the center. 5. Write to memory by pressing MUTING then ENTER . 6. Check to see if the text is displayed on the screen.
Mode Category service micro Signal Type ntsc vchp 00000000 00000000 Display Item disp 48 Item Data
1. 2. 3. 4.
DRIVE (SCON)
1. 2. 3. 4. Input a color-bar signal and set the level to 75%. Set in Standard mode. Activate the Service Adjustment Mode. Set AALS, ABLS, GON and BON items. Using 3 and 6 set each to the following values. Leave RON set to "1".
Item Data
SUB BRIGHT ADJUSTMENT (SBRT)
1. 2. 3. 4. 5. Input a monoscope signal. Activate the Service Adjustment Mode. Set the PICTURE and BRIGHTNESS to minimum. Select the SBRT item with 1 and 4 . Adjust the values of SBRT with 3 and 6 to obtain a faintly visible crosshatch. 6. Press MUTING then ENTER to save into the memory.
Mode
Category video
Display Item rdrv
Signal Type
service ntsc vchp
26
00000000 00000000
AALS: ABLS: R ON: G ON: B ON:
OFF OFF ON OFF OFF
(0) (1) (1) (0) (0)
SUB HUE, SUB COLOR ADJUSTMENT (SHUE, SCOL)
Input color-bar signal at 75%. Activate the Service Adjustment Mode. Set (PIC) to Max and (COL) to 50%. Connect an oscilloscope probe to CV Board, CN301Pin 4 Blue Out. 5. Select the SHUE and SCOL item with 1 and 4 . 6. While showing the SHUE item, adjust the waveform with 1 and 4 until the second and third bars show the same level (V2 = V3 < 0.15Vp-p). Set Sub Hue -2 Step. 1. 2. 3. 4.
5. Connect an oscilloscope probe to CV Board, J1751Pin 12 (KR) (Red Out) . 6. Select SCON with 1 and 4 . 7. Adjust the value of SCON with 3 and 6 for 86 ± 3Vpp for 20/21 inch and 96 ± 3Vpp for 24/25 inch.
-- 26 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
7. While showing the SCOL item, adjust the waveform with 3 and 6 until the first and fourth bars show the same level (V1 = V4 < 0.15Vp-p). Set Sub Col +2 Step.
H. SIZE ADJUSTMENT (HSIZ)
1. 2. 3. 4. 5. Input a monoscope signal. Activate the Service Adjustment Mode. Select HSIZ with 1 and 4 . Adjust with 3 and 6 for the best horizontal size. Press MUTING then ENTER to save into the memory.
V1 V2 V3 V4
8. Press MUTING then ENTER to save into the memory.
V. SIZE ADJUSTMENT (VSIZ)
1. 2. 3. 4. 5. Input a crosshatch signal. Activate the Service Adjustment Mode. Select the VSIZ item with 1 and 4 . Adjust value of VPOS with 1 and 4 for the best vertical center. Press MUTING then ENTER to save into the memory.
V. LINEARITY (VLIN), V. CORRECTION (SCOR), PIN AMP (PAMP), AND HORIZONTAL TRAPEZOID (HTRP) ADJUSTMENTS
1. 2. 3. 4. 5. Input a crosshatch signal. Activate the Service Adjustment Mode. Select VLIN, SCOR, PAMP, and HTRP with with 1 and 4 . Adjust with 3 and 6 for the best horizontal size. Press MUTING then ENTER to save into the memory.
V LINEARITY (VLIN)
V. CENTER ADJUSTMENT (VPOS)
Perform this adjustment after performing H. Frequency (Free Run) Check. 1. Input a crosshatch signal. 2. Activate the Service Adjustment Mode. 3. Select the VPOS item with 1 and 4 . 4. Adjust value of VPOS with 3 and 6 for the best vertical center. 5. Press MUTING then ENTER to save into the memory.
V CORRECTION (SCOR)
PIN AMP (PAMP)
H. CENTER ADJUSTMENT (HPOS)
Perform this adjustment after performing H. Frequency (Free Run) Check. 1. Input a crosshatch signal. 2. Activate the Service Adjustment Mode. 3. Select the HPOS item with 1 and 4 . 4. Adjust the value of HPOS with 3 and 6 for the best horizontal center. 5. Press MUTING then ENTER to save into the memory.
HORIZONTAL TRAPEZOID (HTRP)
-- 27 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
V. ANGLE (VANG), V. BOW (VBOW), UPPER PIN (UPIN) AND LOW PIN (LPIN) ADJUSTMENTS
1. 2. 3. 4. 5. Input a crosshatch signal. Activate the Service Adjustment Mode. Select VANG, VBOW, UPIN, and LPIN with 1 and 4 . Adjust with 3 and 6 for the best picture. Press MUTING then ENTER to save into the memory.
V ANGLE (VANG)
V BOW (VBOW)
UPPER PIN (UPIN)
LOW PIN (LPIN)
SERVICE ADJUSTMENT MODE MEMORY
1. After completing all adjustments, press 0 then ENTER . Read From Memory
Mode Category service Signal Type ntsc Red vchp 00000000 00000000 ENTER defl Display Item Item Data
vbow
7
Green 0
-- 28 --
KV-20FS100/20FV300/21FM100/21FS100/ 21FV300/24FV300/25FV300
SECTION 5: DIAGRAMS 5-1. CIRCUIT BOARDS LOCATION
The components identified by X in this basic schematic diagram have been carefully factory-selected for each set in order to satisfy regulations regarding X-ray radiation. Should replacement be necessary, replace only with the value originally used. When replacing components identified by Y, make the necessary adjustments as indicated. If the results do not meet the specified value, change the component identified by X and repeat the adjustment until the specified value is achieved. (Refer to Safety Related Adjustments on Page 15.) When replacing the parts listed in the table below, it is important to perform the related adjustments.
CV Board
Part Replaced ( ) DY, T585, CRT, IC001, IC561, C507, C508, C506, T511, L510, C588, L588, C566, C561, C563, D567, D568, D566, R567, R568, R565, R566, R562, R563, R561, R528....................A Board
Adjustment ( ) HV HOLD-DOWN R565
HR Board
A Board M3 Board
5-2. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM INFORMATION
All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less are not indicated except for electrolytics and tantalums. All electrolytics are in 50V unless otherwise specified. All resistors are in ohms. k=1000, M=1000k Indication of resistance, which does not have one for rating electrical power, is as follows: Pitch : 5mm Rating electrical power : 1/ 4 W
1
REFERENCE INFORMATION
RESISTOR : RN : RC : FPRD : FUSE : RW : RS : RB : : LF-8L : TA : PS : PP : PT : MPS : MPP : ALB : ALT : ALR METAL FILM SOLID NONFLAMMABLE CARBON NONFLAMMABLE FUSIBLE NONFLAMMABLE WIREWOUND NONFLAMMABLE METAL OXIDE NONFLAMMABLE CEMENT ADJUSTMENT RESISTOR MICRO INDUCTOR TANTALUM STYROL POLYPROPYLENE MYLAR METALIZED POLYESTER METALIZED POLYPROPYLENE BIPOLAR HIGH TEMPERATURE HIGH RIPPLE
/ 4 W in resistance, 1/10 W and 1/ 8 W in chip resistance. : nonflammable resistor. : fusible resistor. : internal component. : panel designation and adjustment for repair.
COIL CAPACITOR
All variable and adjustable resistors have characteristic curve B, unless otherwise noted. Readings are taken with a color-bar signal input. Readings are taken with a 10M digital multimeter. Voltages are DC with respect to ground unless otherwise noted. Voltage variations may be noted due to normal production tolerances. All voltages are in V. S : Measurement impossibillity. : B+line. : B-line. (Actual measured value may be different). : signal path. (RF) Circled numbers are waveform references.
The components identiŽed by shading and ! symbol are critical for safety. Replace only with part number speciŽed. The symbol indicates a fast operating fuse and is displayed on the component side of the board. Replace only with fuse of the same rating as marked. Les composants identiŽes per un trame et une marque ! sont critiques pour la securite. Ne les remplacer que par une piece portant le numero speciŽe. Le symbole indique une fusible a action rapide. Doit etre remplace par une fusible de meme yaleur, comme maque.
-- 29 --
5.3 BLOCK DIAGRAM AND SCHEMATICS BLOCK DIAGRAM Tuner S REAR
V1
KV-21FS100/21FM100/21FV300/20FV300/ 20FS100/24FV300/25FV300
FRONT
V2
Y/C
YUV YUV AUDIO AUDIO OUT
Y
L
R
L
R
U
V
L
R
L
R
Audio Amplifier AN7522 7.5W AN1725 10W 2
2
2
2
2 2 2 2 R 2 3 3 RGB
Det-Out
2 2
AudioProcessor NJW1134
I2C Bus
I.R.
RGB Driver TDA6108
RGB 3
L
Speakers
L.E.D.
One-ChipIC M65582MF-XXXFP -Micro -YCJ -3LCombFilter
Vd
2
Hp
V-Out TDA8172
Menu CTRL Energy Star
5VDC TV-8
E/W
H.Drive
Vert.
Head phones
5V STBY
3.3V Reg.
9V Reg.
SRT
DEC
B+ Rect.
135V
Pin Out KC4370A 200v Rect. +13v Rect. OCP -13v Rect.
H-Out 2SD2627
Horiz.
To DY
Rect.
Power Mosfet 2SK2876
Low B 12.5V Rect. Audio Rect.
14V
To CRT
THP
L.F.T
Relay
Power Supply
To CRT FBT
G2 HV
FBT
Focus
AC Line
D.G.C.
-- 30 --
KV-21FS100/21FM100/21FV300/20FV300/ 20FS100/24FV300/25FV300
A BOARD SCHEMATIC DIAGRAM 1 | 2 | 3 | 4 | 5 | 6 | 7
TO M3 BOARD CN10
DEEMOUT DET OUT FR AGC AFTOUT
|
CN301 9P
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
A
MUTE GND 30V SCL SDA 5V AS 9V 9V
MONO
TO CV BOARD CN1752
9V LINE
HD OUT
HD IN
3.3V
N/S
B-DAT
GND
GND
DET OUT2
AFT OUT
DET OUT
SAP IND
ST IND
RF AGC
F MONO
R OUT
VIF
30V
SCL
SDA
GND
9V
5V
AS
9V
NC
NC
TP100 6.3V RF-AGC
MODE
MUTE
STEREO
L OUT
TU101 *
Y
V1
U
V
Y
-- B -- C -- D -- E
STBY 5V
R109 * C200 *
GND
GND
V
V1
U
FOR JIG
B-INT
B-CLK
ABL
GND
CN302 6P
GND
GND
9V
GND
IK
B
G
R
VM
CN001 4P
CN200 6P
CN201 6P
VIDEO 3
J206 *
VIDEO1 REAR
5
4
2
6
3
1
1
9
1
4
1
6
1
2
2
4
2
2
3
3
3
5
3
5
4
6
7
8
4
5
6
VIDEO 1
AUDIO OUT VAR/FIX
U-IN
V-IN TV-L
R200 * R029 *
D237 *
4
R107 * C074 10 R101 *
Y-IN
R608 15k R111 * R032 *
V-IN
VID-1
R360 *
1
D235 *
SW
VID-1
R
L
U-IN Y-IN
R
L
R306 * R307 *
V
3
2
R203 *
J200 *
D231 *
R216 *
L101 R108 *
V-IN
R361 *
C203 * D201 MTZJT77-9.1B
VID-1
R202 * R234 * C202 *
LINE A
R215 * C212 * C213 *
LINE B
R406 220 R407 220
R478 10k
Q412 2SD601A-QRS-TX MUTE
YUV-R
R213 * C207 * D205 *
R210 *
V2-R
R207 * C206 * D203 *
V2-L
R206 *
V1-R
D200 *
D232 RD9.1EW-T1 R227 *
C-IN
R416 0 R222 *
C077 47
R103 10k :CHIP
TV-L
C220 * R220 * R092 2.2k :CHIP C048 100 R045 4.7k :CHIP
V1-L
D206 * D208 * R218 *
Q400 2SD601A MUTE
R217 * R415 0 R402 0
Q401 2SD601A MUTE
C205 *
C204 *
YUV-L
D412 0 R211 * D204 *
Y-IN +9V
R044 4.7k :CHIP C041 10
C075 470
L008
L010
Q009 2SD601A AGC
D413 MA111-TX
D202 MTZJT77-9.1B R410 * R226 75 :CHIP
R209 *
R208 *
R105 *
R104 *
R106 *
VID-1 VID-1
R204 *
R212 *
TV-VID
TP602
LINE B
C-IN
9V
1
C663 4.7 R323 560
C080 0.33 :CHIP
D630 MTZJ-T-77-30D L009
C312 220p CH
8
7
6
5
IC002 M24C16-MN6T(A) MEMORY
R321 100
R041 4.7k :CHIP
D351 MTZJ-T-77-3.3B R351 10k 1/16W :CHIP
Q301 2SB709A IK BUFFER
C076 100
C081 0.33 :CHIP
TV-R
R322 470 :CHIP
Q306 2SB709A-QRS-TX BUFFER
R087 100
R090 22k :CHIP R091 47k :CHIP R076 100
R038 1k 1/16W :CHIP
D558 MA111-TX
R027 47k 1/16W :CHIP C351 470p :CHIP
R043 220 :CHIP
Q008 2SD601A BUFFER
R042 220 :CHIP
R314 10k :CHIP
+3.3V
R313 0
STEREO
R039 330 1/10W :CHIP
IC401 * AUDIO SW
1
R205 * :CHIP
IN-L
MONO
R250 *
C402 * R400 *
C400 *
IC402 * AUDIO SW
1 6 1 8
C404 *
C406 C410 * * C408 *
C412 *
C414 C418 * * C416 C420 * *
C422 *
CTL
TONEHB
LINEB
CTH
IN5B
IN4B
MONB
TONELB
U-IN
IN1B
IN2B
IN3B
D044 MTZJ-T-77-10B
2
BBE1A
BBE2A
LINEA
IN2A
IN6A
IN3A
IN4A
OUTA
IN1A
IN5A
AGC
3
C661 100
YUV-R
D045 MTZJ-T-77-10B
C051 10
V1-R
NC
V1-R
8
YUV-R V2-R
1 0
R086 1k 1/16W :CHIP
C047 470p :CHIP
D509 MTZJ-T-77-3.3B
TV-R
R-OUT
1 1
C509 22 25V
YUV-L
VRET
1 2
5
D650 MTZJ-T-77-5.6C
Q004 2SD601A-QRS-TX BUFFER
R093 47k :CHIP
4
5
D559 MA111-TX
D390
MA111-TX R391 4.7k 1/16W R394 10k 1/16W
R392 560 1/16W R393 2.2k 1/16W
C098 0.01 :CHIP
S2
V2-L
3 1
4
R650 680
C660 47
6
STBY 5V
C066 *
R036 * :CHIP
V1-L
V+
V1-L
V+
1
2
3
4
5
6
7
C401 *
8
9
10
11
12
13
14
15
CVA
16
17
18
19
S2
V2-L
V2-L
TV-R
R403 * C403 * C405 * C407 C409 * * C411 C413 C415 * * * R401 *
6
TV-R
Q002 2SD601A-QRS-TX CONVERGENCE
Q391 2SD601A SW
JW
7
C424 *
IN-R
R482 *
LINE A
V2-R
R413 *
SPKL+
SPKL-
STANBY
R102 22k 1/16W :CHIP
C079 0.0047 :CHIP
GND
VC
0.01
C554 25V
B:B
YUV-R
R251 *
1
2
3
4
C452 *
5
6
GND
VA
7
8
9
10
GND
JW
IN-R
IN-L
TV-R
SPKR-
11
Q005 2SB709A-QRS-TX HSYNCH SEP
R095
F
CN002 *
TO HR BOARD
TV-VID
R098 * R083 150k :CHIP
R085 0 R084 680 :CHIP
R055 4.7k :CHIP
R035 100 :CHIP C049 1.0
R030 *
R862 220
JW
R527 2.2k
C553 0.1 16V B
C033 0.01 :CHIP
C551 1.0
R524 6.8k :CHIP
*
SPKR+
12
C464 * R434 *
--
D001 *
R033 220
V2-R
IC404 * AUDIO AMP
TV-R
9
AUDIO VCC
C450 2200
C451 0.47
PS401 * R450 4.7k R463 47k R464 47k :CHIP
C461 * R431 *
C462 * R432 *
C463 * R427 * R433 *
R094
:CHIP
-- G -- H --
CN3001
TIMER LED MPWR LED GND STBY 5V SIRCS POWER ON 1 2 3 4 5 6
R071 6.8k
R079 *
R082 1M :CHIP
C053 0.047 :CHIP
C052 220p :CHIP
Q006 2SD601A-QRS-TX HP PROTECT
R498 0 C537 0.001 :CHIP C552 10 D410 MA111-TX R499 *
GND
20
IN-L
SDA
1 4
3
5V
R221 *
MONA
CVB
SCL
S1
L-OUT
7
TP603
Q650 2SD1292 5V REG
1
2
3
4
R311 220 :CHIP
R404 *
SRS/SSFIL1
TONE-LA
R352 470k :CHIP
TONE-HA
R040 4.7k :CHIP
TV-L
GND
BBE1B
BBE2B
OUTB
C390 0.01 25V B
Q390 2SD601A SW
R312 6.8k :CHIP
S1
L-OUT
IC400 * AUDIO PROCESSOR
5 1
2
CSR
R390 0
V+
Y-IN
V1-L
IN6B
VREF
CBS
TV-L
GND
SRSFIL2
+9V
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
V
C361 *
C360 *
Y-IN
J205 *
R479 1k
R477 680 D414 MTZJ-T-77-7.5B
C470 470 16V
VIDEO
2
S-VID
J202 *
J201 *
U-IN
VID-2
*
220
220
1k
R080 10k 1/16W
C054 1
L007
MAIN PWR BUTTON
R081 47k :CHIP R063 4.7k :CHIP
R028
R070
R553
O-DGC
O-VOL
O-SAP
I-SAP
EW-C
IO-BDAT
V-RAMPC
I-BINT
O-MUTE
O-SCLK
IO-SDAT
FBP-IN
EW-OUT
H-OUT
VD+VRAMP
ABL-ACLIN
IK-AKBIN
VD-VRAMP
VCC-3.3V
O-NS
I-STEREO
MENU_BUTTONS
R069 2.2k R067 820 R065 680 S001 *
HVCO
AFC1
O-BCLK
IC004 * SIRCS
3 2 1
S006 S005 S004 S003
S002 D003 MTZJ-T-77-10B
R049 4.7k :CHIP
65
R048 4.7k :CHIP R047 220 R110 220
O-HSYNC
APC
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
C330
66 67 68 69
O-RELAY O-SEL1 O-SEL0 I-AFT I-SIRCS I-PWR I-HLDWN O-AGCMUTE I-KEY I-MENU O-MONO
2
XTAL-PAL-N XTAL-PAL-M XTAL-NTSC GND-DEF
C328 0.01 R337 22 :CHIP 0.01 C337 22p :CHIP X301 CRYSTAL R501 R320 2.2k :CHIP R318 2.2k :CHIP R316 2.2k :CHIP R560 1k 1/16W C498 1
R494 10k :CHIP C460 * R485 100 :CHIP
R458 *
R460 *
R462 *
C458 *
JW403
Y-IN
R054 22k R555 10k :CHIP R031 220 :CHIP R034 JW(7.5)MM C370 * R550 470 :CHIP C325 0.0033 B R324 2.7k 1/16W :CHIP R371 1M C326 0.22 R112 4.7k R056 10k :CHIP R096 4.7k 1/16W R037 10k :CHIP JR44 0
YUV-L
TV-L
TV-L V2-L
C499 *
TV-L
V2-L
C455 *
OUT-L
OUT-R
1 2
CN401 4P
SP R+ SP RSP LSP L+
R455 *
C099 47
C457 *
3 4
64
R050 4.7k
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
IN-R
R405 * R456 * C454 *
R457 *
R459 *
OUT-R
R461 * R429 *
OUT-L
Y-IN
IN-L
R484 100 :CHIP
C459 *
R052 R053 R051 1k C056 0.0022 :