L6650SP

IMPORTANT SAFETY PRECAUTIONS
Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.
Safety Precautions for TV Circuit
1. Before returning an instrument to the customer, always make a safety check of the entire instrument, including, but not limited to, the following items: a. Be sure that no built-in protective devices are defective and have been defeated during servicing. (1) Protective shields are provided on this chassis to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed for servicing convenience. (2) When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not operate this instrument or permit it to be operated without all protective devices correctly installed and functioning. Servicers who defeat safety features or fail to perform safety checks may be liable for any resulting damage. b. Be sure that there are no cabinet openings through which an adult or child might be able to insert their fingers and contact a hazardous voltage. Such openings include, but are not limited to, (1) spacing between the picture tube and the cabinet mask, (2) excessively wide cabinet ventilation slots, and (3) an improperly fitted and/or incorrectly secured cabinet back cover. c. Antenna Cold Check - With the instrument AC plug removed from any AC source, connect an electrical jumper across the two AC plug prongs. Place the instrument AC switch in the on position. Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the coaxial connector. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected before the instrument is returned to the customer. Repeat this test with the instrument AC switch in the off position. d. Leakage Current Hot Check - With the instrument completely reassembled, plug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leak-

When replacing primary circuit components, confirm specified clearance distance (d) and (d') between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1) Table 1 : Ratings for selected area AC Line Voltage 110 to 130 V Region USA or CANADA Clearance Distance (d) (d') 3.2 mm (0.126 inches)
Exposed Accessible Part Z

Fig. 1

Note: This table is unofficial and for reference only. Be sure to confirm the precise values.

2. Leakage Current Test

Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is lower than or equal to the specified value in the table below. Measuring Method : (Power ON) Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig. 2 and following table.

1.5k 0.15F

AC Voltmeter (High Impedance)
Earth Ground Power Cord Plug Prongs

Fig. 2

Table 2 : Leakage current ratings for selected areas AC Line Voltage 110 to 130 V Region USA Load Z 0.15F CAP. & 1.5k RES. connected in parallel Leakage Current (i) i0.5mA rms Earth Ground (B) to: Exposed accessible parts
STANDARD NOTES FOR SERVICING
Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indicated as shown. (2) Remove the flat pack-IC with tweezers while applying the hot air. (3) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) (4) Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

Top View Out In Input

Bottom View
b. For other ICs, pin 1 and every fifth pin are indicated as shown.

Flat Pack-IC Tweezers Fig. S-1-6

2. Installation

(1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily. (2) The "I" mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the 1 on the PCB when positioning for installation. Then pre- solder the four corners of the flat pack-IC. (See Fig. S-1-8.) (3) Solder all pins of the flat pack-IC. Be sure that none of the pins have solder bridges.
Instructions for Handling Semiconductors
Electrostatic breakdown of the semiconductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work.

1. Ground for Human Body

Be sure to wear a grounding band (1M) that is properly grounded to remove any static electricity that may be charged on the body.

2. Ground for Workbench

Be sure to place a conductive sheet or copper plate with proper grounding (1M) on the workbench or other surface, where the semiconductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semiconductors with your clothing.

Example :

<Incorrect>
Pin 1 of the Flat Pack-IC is indicated by a " " mark. Fig. S-1-7

Presolder CBA

<Correct>
Flat Pack-IC CBA Fig. S-1-8

Grounding Band

1M Conductive Sheet or Copper Plate
CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart

This flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were. Caution ! When removing the CRT, be sure to discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap. Note: (1) Order of steps in procedure. When reassembling, follow the steps in reverse order.These numbers are also used as the Identification (location) No. of parts in figures. (2) Parts to be removed or installed. (3) Fig. No. showing procedure of part location (4) Identification of part to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered. S=Screw, P=Spring, L=Locking Tab, CN=Connector, *=Unhook, Unlock, Release, Unplug, or Desolder 2(S-2) = two Screws (S-2) (5) Refer to the following "Reference Notes in the Table."

How to make Service remote control unit:
1. Prepare normal remote control unit. (Part No. N0138UD or N0139UD) Remove 3 Screws from the back lid. (Fig. 1-1) 2. Added J1 (Jumper Wire) to the remote control CBA. (Fig. 1-2)
Note:TP601, TP300(GND), VR661 --- Main CBA 1. Connect DC Volt Meter to TP601 and TP300(GND). 2. Adjust VR661 so that the voltage of TP601 becomes +1320.5V DC.

SCREWS

REMOTE CONTROL UNIT

Fig. 1-1

REMOTE CONTROL CBA

Fig. 1-2

Notes: 1. The service remote control unit that be made in above method is usable in the electrical adjustment of the following models. SRT2313/2319, SRT2213B/2219B, SRT2227X, SRT2223X, SRT2223B, SRT2232X, SRT2220P SRT4127P 2. The attached remote control unit can not be used as service remote control unit. 5-1 L6650EA

2. Initial Setting

General 1. Enter the Service mode. (See page 5-1) 2. Press "VOL p" button on the service remote control unit. Display changes "C/D," "7F," "LANGUAGE," "ACCESS CODE," "SOUND TYPE," "VIDEO TONE," "FM MODE," "V-OUT," "VIDEO," "AV MEMO," "STABLE SOUND," "FILTER," "300," and "YUV MEMORY" cyclically when "VOL p" button is pressed. 3. To set the following each data value, press "CH o / p" buttons on the service remote control unit. 7F --- Set to "FF." LANGUAGE --- Set to "SPA." ACCESS CODE --- Set to "ON." SOUND TYPE --- Set to "MTS." VIDEO TONE --- Set to "ON." FM-MODE --- Set to "OFF." V-OUT --- Set to "OFF." VIDEO --- Set to "V1/V2." AV MEMO --- Set to "ON." STABLE SOUND --- Set to "OFF." FILTER --- Set to "ON." Adjusting the monitoring time --- Set to "500." YUV MEMORY --- Set to "OFF."
3. AV Memory Setting data
General 1. Enter the Service mode. (See page 5-1) 2. When AV MEMORY setting to ON (refer to 2-1. Setting for 7F, CHROMA, LANGUAGE, STEREO TYPE, ACCESS CODE, STABLE SOUND, COMB FILTER, COMPONENT and AV MEMORY data Values), press "VOL o" button on the service remote control unit. Display changes "SPORT CNT," "SPORT CLR," "SPORT SRP," "NEWS CNT," "NEWS CLR," "NEWS SRP," "MOVIE CNT," "MOVIE CLR," and "MOVIE SRP" cyclically when "VOL o" button is pressed. 3. To set the following each data value, press "CH o / p" buttons on the service remote control unit. SPORT CNT--- Set to "48." SPORT CLR--- Set to "30." SPORT SRP--- Set to "34." NEWS CNT--- Set to "39." NEWS CLR--- Set to "30." NEWS SRP--- Set to "28." MOVIE CNT--- Set to "43." MOVIE CLR--- Set to "26." MOVIE SRP--- Set to "24."

L6650EA

4. Setting for BRIGHT, CONTRAST, COLOR, TINT and SHARPNESS data Values
General 1. Enter the Service mode. (See page 5-1) 2. Press "MENU" button on the service remote control unit. Display changes "BRT," "CNT," "CLR," "SCLR," "C-CLR," "TNT," "V-TNT," "S-TNT," "CTNT," "SHARP," "S-SRP," and "C-SRP" cyclically when "MENU" button is pressed. CNT 1. Press "MENU" button on the service remote control unit. Then select "CONTRAST" (CNT) display. 2. Press "CH o/p" buttons on the service remote control unit so that the value of "CONTRAS" (CNT) becomes 84. CLR 1. Press "MENU" button on the service remote control unit. Then select "COLOR" (CLR) display. 2. Press "CH o/p" buttons on the service remote control unit so that the value of "COLOR" (CLR) becomes 56. S-CLR 1. Press "MENU" button on the service remote control unit. Then select "S-COLOR" (S-CLR) display. 2. Press "CH o/p" buttons on the service remote control unit so that the value of "S-COLOR" (SCLR) becomes 56. C-CLR 1. Press "MENU" button on the service remote control unit. Then select "COMPONENT COLOR" (CCLR) display. 2. Press "CH o/p" buttons on the service remote control unit so that the value of "COMPONENT COLOR" (C-CLR) becomes 56. TNT 1. Press "MENU" button on the service remote control unit. Then select "TINT" (TNT) display. 2. Press "CH o/p" buttons on the service remote control unit so that the value of "TINT" (TNT) becomes 62. V-TNT 1. 2. Press "MENU" button on the service remote control unit. Then select "V-TINT" (V-TNT) display. Press "CH o/p" buttons on the service remote control unit so that the value of "V-TINT" (V-TNT) becomes 62.

S-TNT 1. Press "MENU" button on the service remote control unit. Then select "S-TINT" (S-TNT) display. 2. Press "CH o/p" buttons on the service remote control unit so that the value of "S-TINT" (S-TNT) becomes 59. C-TNT 1. Press "MENU" button on the service remote control unit. Then select "COMPONENT TINT" (CTNT) display. 2. Press "CH o/p" buttons on the service remote control unit so that the value of "COMPONENT TINT" (C-TNT) becomes 58. SHARP 1. Press "MENU" button on the service remote control unit. Then select "SHARPNESS" (SHARP) display. 2. Press "CH o/p" buttons on the service remote control unit and select "47." S-SRP 1. Press "MENU" button on the service remote control unit. Then select "S-SHARPNESS" (S-SRP) display. 2. Press "CH o/p" buttons on the service remote control unit and select "47." C-SRP 1. Press "MENU" button on the service remote control unit. Then select "COMPONENT SHARPNESS" (C-SRP) display. 2. Press "CH o/p" buttons on the service remote control unit and select "47." Note: BRIGHT data value does not need to be adjusted at this moment.
5. Black Stretch Control Adjustment
Purpose: To show the fine black color. Symptom of Misadjustment: Black color will not appear correctly. Note: Use service remote control unit. 1. Enter the Service mode. (See page 5-1) 2. Press "6" button on the service remote control unit. "B-S" is indicated. 3. Press "CH o / p" buttons on the service remote control unit so that display will change "OFF," "0," and "1." Then choose "B-S OFF." 4. Press "6" button on the service remote control unit. "B-S2" is indicated. 5. Press "CH o / p" buttons on the service remote control unit so that display will change "0" and "1." Then choose "B-S2 0." 6. Turn the power off and on again, using the main power button on the TV unit.
There are SD in all channel. 7 Please wait

OSD color: Magenta

SD Check mode (Factory mode)
Press "1" buton.
There is no SD after selecting channel. 13 Please wait

6. Purity Check

1. Enter the Service mode. (See page 5-1) 2. Press "7" button on the remote control unit. Each time pressing 7" button on the remote control unit, display changes Red mode, Green mode, Blue mode, and White mode cyclically. 3. Select White mode. 4. Turn the power off and on again. (Main power button on the TV unit.)
When SD-Check starting, there is no ADD channel.

ADD nothing

7. SD Check Mode
1. Enter the Service mode. (See page 5-1) 2. Press "1" button on the remote control unit. The unit enter the SD-Check mode. 3. The unit starts selecting the added channel from first channel according to the memorized CH ADD/ DELL data and CATV/TV data in RAM.

18. Sub-Brightness Adjustment
Purpose: To get proper brightness. Symptom of Misadjustment: If Sub-Brightness is incorrect, proper brightness cannot be obtained by adjusting the Brightness Control. Test Point --Tape --Adj. Point CH o / p buttons M. EQ. Pattern Generator Figure Mode RF Input IQW Spec. See below
4. Adjust the Focus Control on the FBT to obtain clear picture. The following adjustments normally are not attempted in the field. Only when replacing the CRT then adjust as a preparation.

20. Purity Adjustment

Purpose: To obtain pure color. Symptom of Misadjustment: If Color Purity Adjustment is incorrect, large areas of color may not be properly displayed. Test Point --Adj. Point Deflection Yoke Purity Magnet M. EQ. Pattern Generator Figure Mode --Input Red Color Spec. See below.
Black This bar just visible Fig. 4
Note: IQW Setup level --- 7.5 IRE Use service remote control unit 1. Enter the Service mode. (See page 5-1) Then input IQW signal from RF Input. 2. Press "MENU" button on the service remote control unit and Select "BRT" mode. (Display changes "BRT," "CNT," "CLR," "S-CLR," "TNT," "V-TNT," "STNT," "SHARP," and "S-SRP" cyclically when "MENU" button is pressed). Press "CH o/p" buttons so that the bar is just visible (See above figure). 3. Turn the power off and on again. (Main power button on the TV unit.)

BLUE Fig. 5

19. Focus Adjustment
Purpose: Set the optimum Focus. Symptom of Misadjustment: If Focus Adjustment is incorrect, blurred images are shown on the display. Test Point --Tape --Adj. Point Focus Control M. EQ. Pattern Generator Mode --Input Monoscope Spec. See below
1. Set the unit facing east. 2. Operate the unit for over 30 minutes before adjusting. 3. Fully degauss the unit using an external degaussing coil. 4. Loosen the screw on the Deflection Yoke Clamper and pull the Deflection Yoke back away from the screen. (See Fig. 6) 5. Loosen the Ring Lock and adjust the Purity Magnets so that a red field is obtained at the center of the screen. Tighten Ring Lock. (See Fig. 5,6) 6. Slowly push the Deflection Yoke toward bell of CRT and set it where a uniform red field is obtained. 7. Tighten the clamp screw on the Deflection Yoke.
Note: Focus VR (FBT) - Main CBA, FBT=Fly Back Transformer 1. Operate the unit more than 30 minutes. 2. Face the unit to the East and Degauss the CRT using Degaussing Coil. 3. Input the Monoscope Pattern. 5-8 L6650EA

CHROMA COMB BASEBAND TINT
JK711 S-VIDEO-IN C Y Q956
OSD H-SYNC PROCESS CIRCUIT 37 ACL H-DRIVE FBP RAMP-OUT V-RAMP-F/B

61 S-SW

V-SYNC PROCESS CIRCUIT

L6650BLIF

Audio Block Diagram
IC431 (MTS/SAP AUDIO SIGNAL PROCESS)

STEREO FILTER

OFFSET CANCEL
L+R FILTER L-R FILTER SAP OUT FILTER

75uS DE-EMPH

OFFSET CANCEL MATRIX AGC

SAP FILTER

SAP DEMOD

(L-R)/SAP SW

WIDE BAND FILTER dBX DE-EMPH SPECTRAL FILTER
WIDE BAND RMS DET SPECTRAL EXPAND SPECTRAL RMS DET

WIDE BAND EXPAND

I2C DECORDER

IC771 (INPUT SELECT)

TUNER REAR FRONT (L-CH)
IC801 (AUDIO AMP) DC VOL. CN801 SP-L 1 SP-GND 2 SP801 SPEAKER L-CH

DC VOL.

JK702 AUDIO-IN(L) (REAR)

(R-CH)

CN802 SP-R 1 SP-GND 2

SP802 SPEAKER R-CH

JK703 AUDIO-IN(R) (REAR) JK722 AUDIO-IN(L) (FRONT) JK723 AUDIO-IN(R) (FRONT)
JK702 AUDIO-OUT(L) (REAR) JK703 AUDIO-OUT(R) (REAR) Q792 Q791 Q761 AMP Q751 AMP Q793

TUNER REAR FRONT SW CTL

Q794 +8V
A-MUTE-H VOLUME A-O-MUTE FROM/TO INPUT 0 SYSTEM CONTROL INPUT 1 BLOCK SCL SDA

L6650BLA

CRT/H.V. Block Diagram
IC551 (V-DEFLECTION CONTROL) THERMAL PROTECTION
WF11 RAMP-OUT P-ON-H V-RAMP-F/B FROM/TO IF/VIDEO BLOCK Q531 (SWITCHING)

WF12 5

DY551 D.Y. VDRIVE HDRIVE
4 WF9 CN551 VR561 PCC VR562 WIDTH 3 1

PULSE UP

Q551, H. Q552 CONTROL Q561 (SWITCHING)
WF7 H-DRIVE PROTECT-1 PROTECT-2 Q572 H.DRIVE

WF8 T572 Q571 H.OUTPUT

Q533 SWITCHING P-ON-ON

Q547 (SWITCHING)

FROM POWER SUPPLY BLOCK

DEF+B +B T571 F.B.T.

FOCUS VR ANODE

X-RAY CHECK TP591 TP592

S 6 11

FOCUS SCREEN

SCREEN VR
TP302 15kHz FROM/TO SYSTEM CONTROL BLOCK PROTECT-3 FBP ACL
WF10 WH501A 3 HEATER 1 +200V

WH501B

JKCN1501 FOCUS SCREEN GND R G B V501 CRT
TO WH301A WH301B RED 3 GREEN 4 BLUE 5 TP500 GND TP501 BLUE

Q1511, Q1512 RED AMP

Q1521, Q1522 GREEN AMP

BLUE AMP Q1531, Q1532

HEATER GND

CRT CBA

L6650BLCRT
Power Supply Block Diagram
CAUTION ! Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F601) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

HOT CIRCUIT. BE CAREFUL.

Temperature Characteristics of Capacitors are noted with the following:
CH --- 060ppm/C CSL --- +350~-1000ppm/C
Tolerance of Capacitors are noted with the following:

Z --- +80~-20%

Note of Resistors:
CEM --- Cement Res. MTL --- Metal Res. F --- Fuse Res.
Capacitors and transistors are represented by the following symbols.

CBA Symbols

(Top View) (Bottom View) + Electrolytic Capacitor
Schematic Diagram Symbols

Digital Transistor

(Bottom View)
Transistor or Digital Transistor

E C B (Top View)

(Top View)

NPN Transistor

ECB ECB

PNP Transistor

NPN Digital Transistor

PNP Digital Transistor

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:
1. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE_A,_V FUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE_A,_V. 2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. 3. Note: (1) Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since the drawings were prepared. (2) To maintain original function and reliability of repaired units, use only original replacement parts which are listed with their part numbers in the parts list section of the service manual. 4. Wire Connectors (1) Prefix symbol "CN" means "connector" (can disconnect and reconnect). (2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly). 5. Note: Mark "I" is a leadless (chip) component. 6. Voltage indications on the schematics are as shown below: Plug the TV power cord into a standard AC outlet.:

1 5.0 (3.0) Voltage

3 5.0 (3.0) Power on mode Power off mode Unit: Volts
Indicates that the voltage is not consistent here.
7. How to read converged lines
1-D3 Distinction Area Line Number (1 to 3 digits) Examples: 1. "1-D3" means that line number "1" goes to area "D3". 2. "1-B1" means that line number "1" goes to area "B1". 3 AREA D1 A
8. Test Point Information

1-B1 AREA B1 1-D3 B C D

: Indicates a test point with a jumper wire across a hole in the PCB. : Used to indicate a test point with a component lead on foil side. : Used to indicate a test point with no test pin. : Used to indicate a test point with a test pin.
Main 1/4 Schematic Diagram
MAIN 1/4 Ref No. ICS A-3 IC151 C-2 IC333 TRANSISTORS Q111 D-1 Q131 A-3 Q141 A-4 Q191 B-4 Q321 E-2 CONNECTOR CN301 A-3 Position

L6650SCM1

Main 2/4 Schematic Diagram
VIDEO SIGNAL AUDIO SIGNAL
MAIN 2/4 Ref No. Position
ICS G-3 IC431 H-2 IC771 J-4 IC801 TRANSISTORS J-2 Q751 J-2 Q761 Q791 J-1 Q792 I-2 Q793 I-1 Q794 H-1 Q825 J-3 Q831 K-3 Q832 K-3 Q841 K-3 Q851 J-3 H-1 Q951 H-1 Q956 J-3 Q961 CONNECTORS CN801 L-4 CN802 L-3

L6650SCM2

Main 3/4 Schematic Diagram
IF SIGNAL VIDEO SIGNAL AUDIO SIGNAL
CAUTION ! Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F601) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal.
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE. ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE 4A, 125V.
MAIN 3/4 Ref No. ICS IC33 P-3 O-1 IC601 TRANSISTORS Q21 P-4 P-4 Q33 P-2 Q601 P-1 Q602 O-1 Q652 N-2 Q672 N-1 Q673 N-1 Q674 M-2 Q681 M-1 Q682 M-1 Q683 O-2 Q696 CONNECTOR CN691 Q-2 TEST POINTS N-4 TP300 N-4 TP301 VARIABLE RESISTOR VR661 O-1 Position

L6650SCM3

Main 4/4 & CRT Schematic Diagram
MAIN 4/4 Ref No. IC S-3 IC551 TRANSISTORS S-2 Q531 S-2 Q533 U-2 Q547 Q551 T-3 T-3 Q552 Q561 U-3 Position Ref No. Position TRANSISTORS U-2 Q571 T-2 Q572 CONNECTORS T-3 CN571 WH301A V-2 WH501A V-3 TEST POINTS TP302 V-2 Ref No. Position TEST POINTS U-2 TP591 TP592 U-2 U-2 TP601 VARIABLE RESISTORS VR561 U-3 VR562 U-3 CRT Ref No. Position TRANSISTORS W-1 Q1511 W-2 Q1512 W-1 Q1521 W-2 Q1522 W-1 Q1531 W-2 Q1532 CONNECTORS CN1501 X-2 WH301B V-2 WH501B V-3 TEST POINTS W-1 TP500 TP501 W-2

L6650SCM4

CRT CBA Top View

CRT CBA Ref No. Position TRANSISTORS Q1511 C-1 Q1512 C-1 C-1 Q1521 C-1 Q1522 B-1 Q1531 B-1 Q1532 CONNECTORS CN1501 A-2 WH301B B-2 WH501B A-2 TEST POINTS TP500 B-2 TP501 B-2

CRT CBA Bottom View

WF15 Q1511 Collector

TP501 BLUE TP500 GND

WF3 Q1511 Base

WF4 Q1521 Base

WF14 Q1521 Collector

WF5 Q1531 Base

WF13 Q1531 Collector

BL6650F01011-2

WAVEFORMS
Input: NTSC Color Bar Signal (with 1kHz Audio Signal) INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes. reconnect to AC outlet and then turn power on. (Brightness---Center Color---Center Tint --- Center Contrast---Approx 70%)
WF1 ~ WF16 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram.)

GND GND

1DIV: 0.5V 20sec IC 33 Pin 3
1DIV: 2V 20sec Q 1531 Base
1DIV: 200V 20sec CN 571 Pin 1
WF13 1DIV: 20V 20sec Q 1531 Collector
1DIV: 0.5V 20sec IC 333 Pin 14
1DIV: 0.2V 20msec IC 801 Pin 5
WF10 1DIV: 5V 20sec WH501A Pin 3
WF14 1DIV: 20V 20sec Q 1521 Collector
1DIV: 2V 20sec Q 1511 Base
1DIV: 10V 20sec Q 572 Collector
WF11 1DIV: 2V 5msec IC 551 Pin 7
WF15 1DIV: 20V 20sec Q 1511 Collector

10 V 5 ms

1DIV: 2V 20sec Q 1521 Base
1DIV: 5V 20sec Q 571 Base
WF12 1DIV: 10V 5msec CN 571 Pin 4
WF16 1DIV: 0.2V 20sec TU 1 Pin 8

L6650WF

WIRING DIAGRAM
SP801 SPEAKER L-CH CLN801 CNSP-L 2 SP-GND

SP802 SPEAKER R-CH ANODE

CLN802

CNSP-R 2 SP-GND

TU1 TUNER UNIT V501 CRT CN691

MAIN CBA BL6650F01011-1

GND CN1501 FOCUS SCREEN WH301B BLUE GREEN RED GND +8V WH301A BLUE GREEN RED GND +8V T571 FBT

CLN301

CRT CBA BL6650F01011-2
WH501B HEATER 3 GND 2 +200V 1

CLN501

WH501A 3 HEATER 2 GND 1 +200V

DY551 D.Y. HD VD

(NO CONNECTION) CNINT-MONI 2 AGC 3 I2C-OPEN 4 GND 5 SDA 6 SCL CN301 IS USED FOR ADJUSTMENT AT FACTORY.

L6650WI

IC PIN FUNCTIONS
IC333 (TV Micro Computer)
Pin No. 9 Signal Name GND N.U. N.U. N.U. GND VCC N.U. FILT HLF GND Not Used Not Used Not Used GND AL+5V Not Used FILT Filter for CCD VHOLD Input for Video Signal RESET RESET Signal Output Composite Signal Output GND 3.58MHz Crystal CHROMINANCE APC Micro controller Control Voltage Output Not Used Composite Signal Input 3 Not Used VCC (GND) Composite Signal Input 2 Not Used Composite Signal Input 1 Not Used 5.7V Output Chrominance Signal Input Luminance Signal Input DC 8.7V Input Clock Output 3.58MHz Monitor Out Not Used 59 N.U. 60 N.U. 61 S-SW 62 VOLUME 63 INPUTO 64 A-MUTE-H 65 N.U. 66 KEY-IN PROTECT-PROTECT-KEY-IN 2 10-SDA 57 N.U. 58 SCL Function Pin No. Signal Name Not Used Not Used V Ramp Feed Back Vertical Output V Ramp OSC Capacitor DC 8.7V Output Not Used H Vco Feed Back Horizontal AFC Filter GND Flyback Pulse Input H Pulse Output Vcc Vcc Vcc Red Output Green Output Blue Output IB-Input Not Used Mute Signal of Audio Output I2C-BUS Controller Interface (Data) Not Used I2C-BUS Controller Interface (Clock) (GND) Not Used Detecting S-VIDEO Jack Connection Volume Input Select 0 Audio Mute Not Used Key Input 1 (Main) Power Supply Protection Power Supply Protection Key Input 2 (Main) L6650PIN Function

20030303

L6650CA

ELECTRICAL PARTS LIST

PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing. NOTES: 1. Parts that are not assigned part numbers (---------) are not available. 2. Tolerance of Capacitors and Resistors are noted with the following symbols. C..0.25% G..2% M..20% D..0.5% J.5% N..30% F..1% K..10% Z..+80/-20%

C104 C58

C49 C51 C52 C53 C54 C55 C57
ELECTROLYTIC CAP 0.47F/50V M. ELECTROLYTIC CAP 4.7F/50V M or. ELECTROLYTIC CAP 4.7F/50V M. CERAMIC CAP.(AX) B K 1000pF/50V CERAMIC CAP.(AX) F Z 0.01F/25V ELECTROLYTIC CAP 100F/10V M or. ELECTROLYTIC CAP 100F/10V M. CERAMIC CAP.(AX) B K 1000pF/50V CERAMIC CAP.(AX) F Z 0.01F/25V FILM CAP 0.047F/50V J or.(P) FILM CAP 0.047F/50V J or.(P) FILM CAP 0.047F/50V J TV or.(P) MYLAR CAP 0.047F/50V K. FILM CAP 0.033F/50V J or.(P) FILM CAP 0.033F/50V J or.(P) FILM CAP 0.033F/50V J TV.(P) ELECTROLYTIC CAP 10F/50V M or. ELECTROLYTIC CAP 10F/50V M. ELECTROLYTIC CAP 47F/16V M or. ELECTROLYTIC CAP 47F/16V M. ELECTROLYTIC CAP 4.7F/50V M or. ELECTROLYTIC CAP 4.7F/50V M. CERAMIC CAP F Z 0.1F/25V. FILM CAP 0.001F/50V J or.(P) FILM CAP 0.001F/50V J or.(P) FILM CAP 0.001F/50V J TV or.(P) MYLAR CAP 0.001F/50V K.
CE1JMASDLR47 CE1JMASTL4R7 CE1JMASDL4R7 CCA1JKT0B102 CDA1EZT0F103 CE1AMASTL101 CE1AMASDL101 CCA1JKT0B102 CDA1EZT0F103 CMA1JJS00473 CA1J473MS029 CMB1JJS00473 2250473S CMA1JJS00333 CA1J333MS029 CMB1JJS00333 CE1JMASTL100 CE1JMASDL100 CE1CMASTL470 CE1CMASDL470 CE1JMASTL4R7 CE1JMASDL4R7 CDA1EZT0F104 CMA1JJS00102 CA1J102MS029 CMB1JJS00102 2250102S CE1JMASTLR10 CE1JMASDLR10 CCA1JKT0B221 CDA1CKT0Y103 CDA1EZT0F103 CE1AMASTL101 CE1AMASDL101 CE1AMASTL101 CE1AMASDL101 CDA1EZT0F104 CDA1EZT0F103 CDA1EZT0F104 CCA1JKT0B221 CCA1JKT0B221 CA1J121TU008 CE1JMASTL1R0 CE1JMASTL010 CE1JMASDL1R0 CE1JMASDL010 CA1J153TU011 CE1JMASTLR10 CE1JMASDLR10 CE1AMASTL101 CE1AMASDL101 CE1JMASTLR10 CE1JMASDLR10 CE1JMASTLR47 CE1JMASDLR47 CE1JMASTL100 CE1JMASDL100

MMA CBA

MMA-406 CBA Consists of the following MAIN CBA CRT CBA ---------------------------

0ESA05248

C112 C113 C114

Ref. No. Description

MAIN CBA Consists of the following
ELECTROLYTIC CAP 0.1F/50V M or. ELECTROLYTIC CAP 0.1F/50V M. CERAMIC CAP.(AX) B K 220pF/50V CERAMIC CAP.(AX) Y K 0.01F/16V CERAMIC CAP.(AX) F Z 0.01F/25V ELECTROLYTIC CAP 100F/10V M or. ELECTROLYTIC CAP 100F/10V M. ELECTROLYTIC CAP 100F/10V M or. ELECTROLYTIC CAP 100F/10V M. CERAMIC CAP F Z 0.1F/25V. CERAMIC CAP.(AX) F Z 0.01F/25V CERAMIC CAP F Z 0.1F/25V. CERAMIC CAP.(AX) B K 220pF/50V CERAMIC CAP.(AX) B K 220pF/50V CERAMIC CAP.(AX) CH J 120pF/50V ELECTROLYTIC CAP 1F/50V M or. ELECTROLYTIC CAP 1F/50V M or. ELECTROLYTIC CAP 1F/50V M or. ELECTROLYTIC CAP 1F/50V M.

TRANSISTOR 2SC2120-O-TPE2 or TRANSISTOR 2SC2120-Y(TPE2) or TRANSISTOR KTC3203(Y)

Q696 Q751

RES. BUILT-IN TRANSISTOR BA1F4M-T or RES. BUILT-IN TRANSISTOR KRC103M TRANSISTOR 2SC2785(F) or TRANSISTOR 2SC2785(H) or TRANSISTOR 2SC2785(J) or TRANSISTOR KTC3199(GR) or TRANSISTOR KTC3198(GR) or TRANSISTOR 2SC3331(T)-AANP or TRANSISTOR 2SC3331(U)-AANP or TRANSISTOR 2SC1815-GR(TPE2)

Q851# # # Q951

TRANSISTOR 2SC2120-O-TPE2 or TRANSISTOR 2SC2120-Y(TPE2) or TRANSISTOR KTC3203(Y) TRANSISTOR 2SA1175(F) or TRANSISTOR KTA1267(GR) or TRANSISTOR KTA1266(GR) or TRANSISTOR 2SA1318(T)-AANP or TRANSISTOR 2SA1318(U)-AANP or TRANSISTOR 2SA1015-GR(TPE2)
TRANSISTOR 2SA1175(F) or TRANSISTOR KTA1267(GR) or TRANSISTOR KTA1266(GR) or TRANSISTOR 2SA1318(T)-AANP or TRANSISTOR 2SA1318(U)-AANP or TRANSISTOR 2SA1015-GR(TPE2)

Q961# # #

RESISTORS
R23 R31 R33 R34 R36 R37 R38 R39 R40 R43 R44 R51 R52 R54 R102 CARBON RES. 1/4W J 1k or CARBON RES. 1/6W J 1k CARBON RES. 1/4W J 22k CARBON RES. 1/4W J 270 or CARBON RES. 1/6W J 270 CARBON RES. 1/4W J 220 or CARBON RES. 1/6W J 220 CARBON RES. 1/4W J 10k CARBON RES. 1/4W J 220 or CARBON RES. 1/6W J 220 CARBON RES. 1/4W J 3.3k CARBON RES. 1/4W J 27k CARBON RES. 1/4W J 100k CARBON RES. 1/4W J 12k CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 220k CARBON RES. 1/4W J 220k CARBON RES. 1/4W J 22k CARBON RES. 1/4W J 1.5k

Q794 Q825

RES. BUILT-IN TRANSISTOR BA1F4M-T or RES. BUILT-IN TRANSISTOR KRC103M TRANSISTOR 2SC2785(F) or TRANSISTOR 2SC2785(H) or TRANSISTOR 2SC2785(J) or TRANSISTOR KTC3199(GR) or TRANSISTOR KTC3198(GR) or
R103 R104 R105 R108 R109 R111 R112 R113 R114 R116 R132 R133 R135 R136 R137 R138 R139 R140 R141 R142 R150 R153 R154 R156 R157 R158 R159 R161 R163 R164 R165 R166 R167 R168 R170 R171 R172 R173 R174 R176 R177 R178 R193 R195 R196
CARBON RES. 1/4W J 2.2k CARBON RES. 1/4W J 2.7k CARBON RES. 1/4W J 4.7k CARBON RES. 1/4W J 10k CARBON RES. 1/4W J 10k CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 10k CARBON RES. 1/4W J 470k CARBON RES. 1/4W J 1k or CARBON RES. 1/6W J 1k PCB JUMPER D0.6-P5.0 PCB JUMPER D0.6-P5.0 PCB JUMPER D0.6-P5.0 CARBON RES. 1/4W J 2.2k CARBON RES. 1/4W J 100k CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 220k CARBON RES. 1/4W J 22k CARBON RES. 1/4W J 1k or CARBON RES. 1/6W J 1k PCB JUMPER D0.6-P5.0 CARBON RES. 1/4W J 470 or CARBON RES. 1/6W J 470 PCB JUMPER D0.6-P5.0 CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 1k or CARBON RES. 1/6W J 1k CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 470 or CARBON RES. 1/6W J 470 CARBON RES. 1/4W J 470 or CARBON RES. 1/6W J 470 CARBON RES. 1/4W J 10k CARBON RES. 1/4W J 4.7k CARBON RES. 1/4W J 6.8k CARBON RES. 1/4W J 22k CARBON RES. 1/4W J 4.7k CARBON RES. 1/4W J 5.6k CARBON RES. 1/4W J 3.9k PCB JUMPER D0.6-P5.0 CARBON RES. 1/4W J 22k CARBON RES. 1/4W J 10k CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 100 or CARBON RES. 1/6W J 100 CARBON RES. 1/4W J 470 or CARBON RES. 1/6W J 470 CARBON RES. 1/4W J 22k CARBON RES. 1/4W J 2.2k CARBON RES. 1/4W J 100 or