IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommended by Funai and de- scribed in this service manual are effective methods of performing service operations. Some of these service special tools should be used when and as recommended.
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.
ing is performed that involves B+, horizontal de- earth ground. If a voltage reading in excess of 1.0V flection or high voltage. Correct operation of the X- is obtained, remove and reinsert the AC power radiation protection circuits also must be recon- plug in the opposite polarity and again measure firmed each time they are serviced.
Page 6
Precautions during Servicing 3) Align the lengths of the wires to be connected. In- sert the wires fully into the connector. A. Parts identified by the ( # ) symbol are critical for 4) Use the crimping tool to crimp the metal sleeve at safety.
Page 7
Safety Check after Servicing Examine the area surrounding the repaired location Chassis or Secondary Conductor for damage or deterioration. Observe that screws, parts and wires have been returned to original posi- tions. Afterwards, perform the following tests and con- Primary Circuit Terminals firm the specified values in order to verify compliance with safety standards.
STANDARD NOTES FOR SERVICING Circuit Board Indications (2) Remove the flat pack-IC with tweezers while ap- plying the hot air. a. The output pin of the 3 pin Regulator ICs is indicat- (3) Bottom of the flat pack-IC is fixed with glue to the ed as shown.
Page 9
With Soldering Iron: soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) (1) Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder (5) Release the flat pack-IC from the CBA using twee- flux which is applied to all pins of the flat pack-IC, zers.
Page 10
2. Installation Instructions for Handling Semiconductors (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA Electrostatic breakdown of the semiconductors may so you can install a replacement flat pack-IC more occur due to a potential difference caused by electro- easily.
CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart Note : (1) Order of steps in procedure. When reassembling, This flowchart indicates the disassembly steps for the follow the steps in reverse order.These numbers cabinet parts, and the CBA in order to gain access to are also used as the Identification (location) No.
1. The service remote control unit that be made in above method is usable in the electrical adjust- ment 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.
Page 15
3-1. Setting for 7F and FRENCH TINT (TNT) data Values 1. Press " MENU " button on the Service remote con- trol unit. Then select " TINT " (TNT) display. General 2. Press " CH o / p " buttons on the Service remote 1.
Page 16
5. V. Size Adjustment 7. H. Position Adjustment Purpose: To obtain correct vertical width of screen image. Purpose: To obtain correct horizontal position of screen image. Symptom of Misadjustment: If V. Size is incorrect, vertical size of image on the screen may not be properly displayed. Symptom of Misadjustment: If H.
9. PIN Cushion Adjustment 10. Cut-off Adjustment Purpose: To obtain correct straight vertical line of Purpose: To adjust the beam current of R, G, B, and screen image. screen voltage. Symptom of Misadjustment: If H.Pin cushion is incor- Symptom of Misadjustment: White color may be rect, vertical line of image on the screen may not be reddish, greenish or bluish.
11. White Balance Adjustment Note: Confirm that Cut Off Adj. is correct after this adjustment, and attempt Cut Off Adj. if needed. Purpose: To mix red, green and blue beams correctly for pure white. 12. Sub-Brightness Adjustment Symptom of Misadjustment: White becomes bluish Purpose: To get proper brightness.
13. Focus Adjustment The following 2 adjustments normally are not attempted in the field. Only when replacing the Purpose: Set the optimum Focus. CRT then adjust as a preparation. Symptom of Misadjustment: If Focus Adjustment is 14. Purity Adjustment incorrect, blurred images are shown on the display. Purpose: To obtain pure color.
15. Convergence Adjustment 1. Loosen the Ring Lock and align red with blue dots or Crosshatch at the center of the screen by rotat- Purpose: To obtain proper convergence of red, green ing (RB) C.P. Magnets. (See Fig. 7) and blue beams. 2.
Page 22
IF/Video Block Diagram RF/IF SIGNAL VIDEO SIGNAL AUDIO SIGNAL IC31 (IF SIGNAL PROCESS) MAIN CBA CF31 VIDEO 4.5MHz FILTER TRAP CF32 4.5MHz TU-AUDIO AUDIO BLOCK FILTER TP301 VCO F/B IF AGC DET EXT.CLK FROM/TO INPUT0 SYSTEM WF16 CONTROL BLOCK IC111 X301 TV MICON/VIDEO 3.58MHz...
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 CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, NOTE : circuit are not defective before you connect the AC plug to the AC power supply.
SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS Standard Notes Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement compo- nents rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements;...
Page 27
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 MÊME TYPE DE_A,_V. 2.
Page 28
Main 1/4 Schematic Diagram VIDEO SIGNAL MAIN 1/4 Ref No. Position IC111 IC151 TRANSISTORS Q111 Q321 Q361 L6600SCM1...
Page 29
Main 2/4 Schematic Diagram VIDEO SIGNAL AUDIO SIGNAL MAIN 2/4 Ref No. Position IC401 IC481 IC802 TRANSISTORS Q411 Q441 Q481 Q825 Q831 Q832 Q833 CONNECTORS CN801 CN802 L6600SCM2...
Page 30
Main 3/4 Schematic Diagram CAUTION ! IF SIGNAL CAUTION: FOR CONTINUED PROTECTION AGAINST RISK Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. NOTE : OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE. VIDEO SIGNAL If Main Fuse (F601) is blown, check to see that all components in the power supply The voltage for parts in hot circuit is measured...
Page 31
Main 4/4 & CRT Schematic Diagram MAIN 4/4 Ref No. Position Ref No. Position Ref No. Position Ref No. Position TRANSISTORS TEST POINTS TRANSISTORS IC551 Q572 TP592 Q1512 TRANSISTORS CONNECTORS TP601 Q1522 Q531 CN571 VARIABLE RESISTORS Q1532 WH301A VR561 CONNECTORS Q532 Q551 WH501A...
Page 32
Main CBA Top View CAUTION: FOR CONTINUED PROTECTION AGAINST RISK BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE. MAIN CBA SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. CAUTION ! ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE Ref No.
Page 33
Main CBA Bottom View CAUTION: FOR CONTINUED PROTECTION AGAINST RISK CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
Page 34
CRT CBA Top View CRT CBA Bottom View CRT CBA Ref No. Position TRANSISTORS Q1512 Q1522 Q1532 CONNECTORS CN1501 WH301B WH501B TEST POINTS TP1501 TP1502 WF14 WF15 WF13 Q1522 Q1522 Q1512 Q1512 Q1532 Q1532 Collector Base Base Collector Collector Base TP1501 TP1502 BLUE...
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. WF1 ~ WF16 = Waveforms to be observed at (Brightness---Center Color---Center Tint --- Center Contrast---Approx 70%) Waveform check points.
IC PIN FUNCTIONS IC111(TV Micro Computer) Signal Name Function Signal Name Function 35 N.U. Not Used 36 N.U. Not Used 37 V RAMP F/B V Ramp Feed Back N.U. Not Used 38 V RAMP OUT Vertical Output N.U. Not Used 39 V RAMP CAP V Ramp OSC Capacitor N.U.
Page 38
Signal Name Function 71 MONO-OUT MONO-OUT White Balance Adjustment 72 I2C OPEN Judgement 73 AFT AFT Voltage Input 74 DG-ON-H Degaussing Coil Control 75 AGC AGC Voltage Input 76 PROTECT 3 Power Supply Protection 77 N.U. Not Used 78 FM-SW Switching IF IC VCO 79 P-ON-H Output for P-ON-H...
EXPLODED VIEWS Cabinet SHINWHA TAPE SGT-730 V501-1 (BLACK) Details for DY551 and surrounding parts SHINWHA TAPE SGT-730 DY551 (WHITE) V501-2 Scotch Tape #880 CLN801 CLN551 DY551 SP801 CRT CBA DG691 Scotch Tape #880 CLN802 V501 SP802 AC601 MAIN CBA See Electrical Parts List for parts with this mark.
MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. V501# CRT A68QBC230X TCRT190GS043 Before replacing any of these components, read care- V501-1 PCM JH88DTA XM04000BV010 fully the product safety notice in this service manual. V501-2 WEDGE FT-00110W or XV10000T4001...
ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. FILM CAP .(P) 0.047µF/50V J or CMA1JJS00473 Before replacing any of these components, read care- FILM CAP .(P) 0.047µF/50V J CA1J473MS029 fully the product safety notice in this service manual.
Page 44
Ref. No. Description Part No. Ref. No. Description Part No. C347 ELECTROLYTIC CAP . 470µF/10V M or CE1AMASTL471 ELECTROLYTIC CAP . 47µF/35V M CE1GMASDL470 ELECTROLYTIC CAP . 470µF/10V M CE1AMASDL471 C562 ELECTROLYTIC CAP . 470µF/25V M or CE1EMZNTL471 C349 ELECTROLYTIC CAP . 470µF/10V M or CE1AMASTL471 ELECTROLYTIC CAP .
Page 45
Ref. No. Description Part No. Ref. No. Description Part No. CERAMIC CAP . 0.01µF F CS CCG2HMN0F103 ELECTROLYTIC CAP . 470µF/16V M CE1CMASDL471 C643# SAFETY CAP . 10000pF/250V or CCG2EMA0F103 C827# ELECTROLYTIC CAP . 100µF/16V M or CE1CMASTL101 SAFETY CAP . F M 0.01µF/250V or CCG2EMP0F103 ELECTROLYTIC CAP .
Page 46
Ref. No. Description Part No. Ref. No. Description Part No. D582 FAST RECOVERY DIODE ERD38-06 QDQZ0ERD3806 SWITCHING DIODE 1N4148 NDTZ001N4148 D583 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 D672 PCB JUMPER D0.6-P5.0 JW5.0T SWITCHING DIODE 1N4148 NDTZ001N4148 D673 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 D584# SWITCHING DIODE 1SS133(T-77) or...
Page 47
Ref. No. Description Part No. Ref. No. Description Part No. L562 LINEARITY COIL ST02LN or LLBD00ZY2003 TRANSISTOR 2SC3331(U)-AANP or 2SC3331UZ CHOKE COIL ELC13B102L or LLC102KMS001 TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815 CHOKE COIL CSA-LF048 LLBD00ZSA003 Q532 TRANSISTOR 2SC2785(F) or QQSF02SC2785 L601# LINE FILTER JLB2808 or LLBG00ZXB004 TRANSISTOR 2SC2785(H) or QQSH02SC2785...
Page 51
Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 10k Ω R834 RCX4JATZ0103 JK701 RCA JACK 1P(YELLOW)WITH SWITCH AV1-09S- JYRL010RP009 3 or R837 PCB JUMPER D0.6-P5.0 JW5.0T RCA JACK(YELLOW) MTJ-032-06A-20 JYRL010LY013 CARBON RES. 1/4W J 1k Ω or R838 RCX4JATZ0102 JK702...
Page 52
Ref. No. Description Part No. Ref. No. Description Part No. CRT CBA ------------ TP1501 PCB JUMPER D0.6-P10.0 JW10.0T Consists of the following TP1502 PCB JUMPER D0.6-P10.0 JW10.0T CAPACITORS C1501 CERAMIC CAP . B K 1000pF/2KV or CCD3DKD0B102 CERAMIC CAP . B K 1000pF/2KV or CCD3DKP0B102 CERAMIC CAP .
Need help?
Do you have a question about the SRT2227X and is the answer not in the manual?
Questions and answers