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Emerson SC319C Service Manual

19" color tv/vcr combination.
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SERVICE MANUAL

Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA's
19" COLOR TV/VCR COMBINATION
SC319C/6319CC/EWC1902
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
Sec. 3: Exploded views
and Parts List Section
I Exploded views
I Parts List

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   Summary of Contents for Emerson SC319C

  • Page 1: Service Manual

    I Standard Maintenance and Parts List Section I Specifications I Preparation for Servicing I Alignment for Mechanism I Exploded views I Disassembly/Assembly of Mechanism I Parts List I Adjustment Procedures I Schematic Diagrams I CBA’s 19" COLOR TV/VCR COMBINATION SC319C/6319CC/EWC1902...
  • Page 2: Important Safety Notice

    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 described in this service manual are effective methods of performing service operations. Some of these service special tools should be used when and as recommended.
  • Page 3: Table Of Contents

    MAIN SECTION 19" COLOR TV/VCR COMBINATION SC319C/6319CC/EWC1902 Sec. 1: Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA’s TABLE OF CONTENTS Specifications................1-1-1 Important Safety Precautions.
  • Page 4: Specifications

    SPECIFICATIONS *ˆ M ode---------SP mode unless otherwise specified *Test input terminal <Except Tuner>-------------Video input (1Vp-p) Audio input (-10dB) <Tuner>-----------------------Ant. input (80dBµV) Video: 87.5% Audio: 25kHz dev (1kHz Sin) <DEFLECTION> Description Condition Unit Nominal Limit 1. Over Scan — — 2. Linearity Horizontal —...
  • Page 5 <AUDIO> All items are measured across 8Ω resistor at speaker output terminal. Description Condition Unit Nominal Limit 1. Audio Output Power (Max.) (R/P) 2. Audio S/N (W/LPF) (R/P) 3. Audio Distortion (W/LPF) (R/P) -2.0 ± 5.0 4. Audio Freq. Response 200Hz (R/P) -2.0 0 ±...
  • Page 6: Important Safety Precautions

    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.
  • Page 7 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 is obtained, remove and reinsert the AC power X-radiation protection circuits also must be recon- plug in the opposite polarity and again measure firmed each time they are serviced.
  • Page 8 Precautions during Servicing H. When a power cord has been replaced, check that 5~6 kg of force in any direction will not loosen it. A. Parts identified by the ( # ) symbol are critical for I. Also check areas surrounding repaired locations. safety.
  • Page 9 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.
  • Page 10: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications How to Read the Values of the Rect- angular Type Chip Components 1. The output pin of the 3 pin Regulator ICs is indi- cated as shown: Example: (a) Resistor Top View Bottom View Input = 473 = 47 [kΩ] (Top View)
  • Page 11 Notes: 2. The Flat Pack-IC on the CBA is affixed with glue, so be careful not to break or damage the foil of a. Do not attempt to lift the component off the board each pin or solder lands under the IC when remov- until the component is completely disconnected ing it.
  • Page 12 Hot Air Blower Iron Wire Soldering Iron Fig. S-1-1 To Solid Mounting Point Fig. S-1-5 Hot-air Flat Pack-IC Desoldering Machine Example : Flat Pack-IC Masking Tape Tweezers Pin 1 of the Flat Pack-IC Fig. S-1-2 is indicated by a " "...
  • Page 13 Instructions for Handling Semiconductors Electrostatic breakdown of the semiconductors may occur due to a potential difference caused by electro- static charge during unpacking or repair work. Ground for Human Body Be sure to wear a grounding band (1MΩ) that is prop- erly grounded to remove any static electricity that may be charged on the body.
  • Page 14: Preparation For Servicing

    PREPARATION FOR SERVICING How to Enter the Service Mode Adjustment Mode No need to use. Caution: 1 Purity check mode: Shows Red, 1. Optical sensors system are used for Tape Start Green, Blue or White cyclically on the and End Sensor on this equipment. Read this page screen each time the “7”...
  • Page 15: Operating Controls And Functions

    OPERATING CONTROLS AND FUNCTIONS NOTE: We do not recommend the use of universal remote controls. Not all of the functions may be controlled with a universal remote control. If you decide to use a universal remote control with this unit, please be aware that the code number given may not operate this unit.
  • Page 16 - REAR VIEW - ANT. +100 button– When selecting cable channels Press to rewind the tape, or to view REW button– which are higher than 99, press this button first, the picture rapidly in reverse during playback then press the last two digits. (To select channel mode.
  • Page 17: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart (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 This flowchart indicates the disassembly steps for the parts in Figures. cabinet parts, and the CBA in order to gain access to item(s) to be serviced.
  • Page 18 ANT. Fig. 1 [1] REAR CABINET Fig. 2 1-6-2 T7300DC...
  • Page 19 [2] TRAY CHASSIS [3] DECK UNIT [4] MAIN CBA Fig. 3 1-6-3 T7300DC...
  • Page 20 ANODE CAP CRT CBA [5] CRT Fig. 4 1-6-4 T7300DC...
  • Page 21 ANODE CL504A CN501 CL501A CRT CBA FOCUS SCREEN TO SPEAKER MAIN CBA CL403 CN802 TO DEGAUSS COIL CN601 CL401 AC CORD CL504 CL402 CL501 CN571 CL201 CYLINDER CAPSTAN ASSEMBLY MOTOR AC HEAD FE HEAD DECK UNIT ASSEMBLY Fig. 5 1-6-5 T7300DC...
  • Page 22: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: How to Set up the Service mode: "CBA" is abbreviation for "Circuit Board Service Mode: Assembly." 1. Use the service remote control unit. 2. Turn the power on. NOTE: 3. Press " WAKE-UP/SLEEP " button on the service Electrical adjustments are required after replacing remote control unit.
  • Page 23 3. TV AGC Adjustment 4-2. C-Trap Adjustment Purpose: Set AGC (Auto Gain Control) Level. Purpose: To get minimum leakage of the color signal carrier. Symptom of Misadjustment: AGC does not synchro- nize correctly when RF input level is too weak and pic- Symptom of Misadjustment: If C-Trap Adjustment is ture distortion may occur if it is too strong.
  • Page 24 4-3. Y DL Time Adjustment 5. V. Size Adjustment Purpose: To get minimum leakage of the color signal Purpose: To obtain correct vertical height of screen carrier. image. Symptom of Misadjustment: If Y DL Time Adjust- Symptom of Misadjustment: If V. Size is incorrect, ment is incorrect, stripes will appear on the screen.
  • Page 25 7. H. Shift Adjustment Notes: Screen Control FBT --- MAIN CBA F.B.T= Fly Back Transformer Purpose: To obtain correct horizontal position and Use the Remote Control Unit size of screen image. 1. Degauss the CRT and allow CRT to operate for 20 Symptom of Misadjustment: Horizontal position and minutes before starting the alignment.
  • Page 26: Focus Adjustment

    9. Sub-Brightness Adjustment 10. Focus Adjustment Purpose: To get proper brightness. Purpose: Set the optimum Focus. Symptom of Misadjustment: If Sub-Brightness is Symptom of Misadjustment: If Focus Adjustment is incorrect, proper brightness cannot be obtained by incorrect, blurred images are shown on the display. adjusting the Brightness Control.
  • Page 27: Convergence Adjustment

    14. Convergence Adjustment The following 2 adjustments normally are not attempted in the field. They should be done Purpose: To obtain proper convergence of red, green only when replacing the CRT then adjust as a and blue beams. preparation. Symptom of Misadjustment: If Convergence Adjust- 13.Purity Adjustment ment is incorrect, the edge of white letters may have color edges.
  • Page 28 1. Set the unit to the AUX Mode which is located before CH2 then input a Dot or crosshatch pattern. 2. Loosen the Ring Lock and align red with blue dots or Crosshatch at the center of the screen by rotat- ing (RB) C.P.
  • Page 29: Block Diagrams

    BLOCK DIAGRAMS Servo/System Control Block Diagram IC201 (SERVO/SYSTEM CONTROL) SW201 SW205 (DECK ASSEMBLY KEY 0 SWITCH MAIN CBA SW206 SW210 AL+5V KEY 1 SWITCH D203 RS201 S-LED REMOTE P-ON-H REMOTE P-ON-H TO POWER SENSOR P-DOWN SUPPLY BLOCK P-DOWN AC HEAD ASSEMBLY J116 CL402 CTL AMP-OUT...
  • Page 30 Video Block Diagram REC VIDEO SIGNAL PB VIDEO SIGNAL MODE: SP/REC MAIN CBA J188 Q401 V-OUT BUFFER IC401 VIDEO/AUDIO SIGNAL PROCESS Q402 CCD 1H TO CHROMA/ VIDEO BUFFER DELAY TUNER BLOCK CHARA LUMINANCE DOC YNR Y/C COMB SIGNAL PROCESS V-AGC TU-VIDEO TUNER TO CHROMA/...
  • Page 31: Audio Block Diagram

    Audio Block Diagram PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC MAIN CBA IC301 IC801 (AMP) OUTPUT FROM/TO JK801 TU-AUDIO CHROMA/TUNER LIMITER FM DET EARPHONE JACK MUTE BLOCK FROM/TO TUNER SERIAL SERVO/SYSTEM CONTROL BLOCK LINE/PB CN802 SP801 JK702 SP-MUTE SPEAKER A-IN SP-GND FROM PIN 12 OF IC201...
  • Page 32 Chroma/Tuner Block Diagram REC-AUDIO SIGNAL REC VIDEO SIGNAL PB VIDEO SIGNAL Mode : SP/REC MAIN CBA J191 RF AGC-OUT IC301 VIDEO/AUDIO/CHROMA/DEFLECTION/IF TU001 CF301 Q301 4.5MHz BUFFER TU VIDEO TO VIDEO BLOCK TRAP SF001 CF302 IF SIGNAL 4.5MHz CONTROL TU AUDIO TO AUDIO BLOCK FILTER CIRCUIT SERIAL...
  • Page 33 CRT/H.V. Block Diagram REC VIDEO SIGNAL PB VIDEO SIGNAL Mode : SP/REC IC551 (V-DEFLECTION CONTROL) L551 WF13 DEFLECTION-YOKE THERMAL PROTECTION DRIVE Q572 H.DRIVE PUMP DRIVE WF12 Q571 T572 CN571 H.OUTPUT FROM POWER SUPPLY BLOCK FOCUS VR DEF+B T571 F.B.T. ANODE FOCUS SCREEN ANODE...
  • Page 34 Power Supply Block Diagram CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, CAUTION ! REPLACE ONLY WITH THE SAME TYPE FUSE. NOTE : Fixed voltage power supply circuit is used in this unit. ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES The voltage for parts in hot circuit is measured using If Main Fuse (F601) is blown, check to see that all components in the power supply 4A/125V...
  • Page 35: Mechanical Trouble Indicator

    MECHANICAL TROUBLE INDICATOR 1, Each Malfunction Indication POWER SAFETY 1) POWER SAFETY 1 If the MONITOR is turned ON right after the Mechani- If P-SAFETY 1 port becomes continuously 2.5V or cal Malfunction occurs or POWER SAFETY/X-RAY is less for 120 msec. (4 times 40 msec. interval) when turned ON, display the following character to show MONITOR is ON, the unit shall be assumed to be Malfunction after the EJECT display.
  • Page 36 Mechanical Malfunction determination 4) Countermeasure for CASSETTE LOADING Mal- function 1) REEL Malfunction detection a) CASSETTE IN operating Malfunction Countermeasure for REEL and CAPSTAN motor If LD-SW does not go to SB position after a lapse rotation malfunction (Except CASSETTE LOAD- of 5 sec.
  • Page 37: Power Supply Trouble Shooting Guide

    Power Supply Trouble Shooting Guide It is highly recommended that a variable isolation Voltage approx. 5Vp-p transformer which can monitor current be used. (Alternatively a variable AC source which moni- tors current will do). Read directions below before power is added! T=Approx.
  • Page 38 Repair method #2 Check the primary rectifying diodes (D603-D606) as possible problems. Remove the above mentioned parts and check them. Perform check according to the step 1 and 2 of repair method #1 and check for defects following parts, then if necessary replace with factory originals.
  • Page 39: Schematic Diagrams / Cba's And Test Points

    SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes Note: 1. Do not use the part number shown on these draw- Warning ings for ordering. The correct part number is shown in the parts list, and may be slightly different or Many electrical and mechanical parts in this chassis amended since these drawings were prepared.
  • Page 40 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. 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.
  • Page 41 Main 1/4 Schematic Diagram MAIN 1/4 Ref No. Position IC201 IC202 TRANSISTORS Q205 Q206 TEST POINTS J116 CONNECTORS CL201 1-9-3 1-9-4 1-9-5 T7300SCM1...
  • Page 42 Main 2/4 Schematic Diagram REC Video Signal PB Video Signal REC Audio Signal PB Audio Signal MAIN 2/4 Ref No. Position IC401 IC801 TRANSISTORS Q401 Q402 Q491 Q871 Q872 Q873 Q874 Q875 TEST POINTS J187 J188 J189 J190 CONNECTORS CL401 CL402 CL403 CN802...
  • Page 43 Main 3/4 Schematic Diagram REC Video Signal PB Video Signal REC Audio Signal PB Audio Signal MAIN 3/4 Ref No. Position IC301 TRANSISTORS Q301 Q302 TEST POINTS J191 J233 J234 J239 J262 J264 CONNECTORS CN303 1-9-9 1-9-10 1-9-11 T7300SCM3...
  • Page 44 Main 4/4 Schematic Diagram CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, CAUTION ! REPLACE ONLY WITH THE SAME TYPE FUSE. Fixed voltage power supply circuit is used in this unit. ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES NOTE : If Main Fuse (F601) is blown, check to see that all components in the power supply D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
  • Page 45 Main CBA Top View Sensor CBA Top View (END-SENSOR) CAUTION ! Fixed voltage power supply circuit is used in this unit. BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER If Main Fuse (F601) is blown, check to see that all components in the power supply SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
  • Page 46 Main CBA Bottom View CAUTION BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage power supply circuit is used in this unit. REPLACE ONLY WITH THE SAME TYPE FUSE.
  • Page 47 CRT CBA Top View CRT CBA Bottom View CRT CBA Ref No. Position TRANSISTORS Q501 Q502 Q503 CONNECTORS CL501A CL504A WF14 WF16 WF15 CN501 Q501 Q503 Q502 Collector Collector Collector 1-9-21 1-9-22 BT5300F01012...
  • Page 48: Waveforms

    WAVEFORMS WAVEFORM NOTES INPUT: NTSC COLOR BAR SIGNAL OTHER CONTROLS: CENTER POSITION VOLTAGES SHOWN ARE RANGE OF OSCILLOSCOPE SETTING 5 ms 0.5 V 20 µs 10 V 5 ms 20 µs 0.5 V 0.5 ms WF13 MAIN 4/4 SCHEMATIC DIAGRAM WF17 MAIN 1/4 SCHEMATIC DIAGRAM WF9 MAIN 2/4 SCHEMATIC DIAGRAM WF1 MAIN 2/4 SCHEMATIC DIAGRAM...
  • Page 49: Wiring Diagram

    WIRING DIAGRAM WIRING DIAGRAM FOR SECTION 2 (DECK MECHANISM) ANODE CN802 CL802 SP801 SPEAKER SP-GND CAPSTAN MOTOR CRT CBA FOCUS LOADING CL201 BT5300F01012 MOTOR C-F/R AL+12V D/L+12V SCREEN CN501 CL504B CL504 AL+5V CYLINDER ASSEMBLY C-FG GREEN GREEN C-CONT SENSOR BULE BLUE D-FG LD-CONT...
  • Page 50: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS Chart 1 EJECT ST-S,/ END-S "OFF" CASS.LOAD LD-FWD 0.2S LD-REV STOP (B) LD-FWD 0.2S LD-REV 0.2S LD-FWD 0.5S LD-REV STOP(A) PLAY LD-FWD PLAY LD-FWD LD-REV 0.2S LD-FWD PLAY PLAY PAUSE STILL PAUSE ON NOISE CANCEL PAUSE STILL PAUSE ON NOISE...
  • Page 51 Chart 2 STOP(A) STOP LD-REV 0.2S LD-FWD STOP /EJECT LD-REV 1.0S LD-FWD 0.5S LD-REV STOP(A) LD-REV 0.2S LD-FWD STOP /EJECT LD-REV 1.0S LD-FWD 0.5S LD-REV STOP(A) LD-FWD PAUSE LD-FWD 2.5S Short REV LD-REV 0.2S LD-FWD REC PAUSE REC or PAUSE STOP /EJECT LD-FWD...
  • Page 52: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS IC 201 (TV/VCR Micro Computer) Signal Function Name “H” ≥ 4.5V, “L” ≤ 1.0V External Input or Playback EXT-H/ Signal 29 OUT SIgnal Output/Input Function INSEL Name Selector Control Signal LD-SW Loading Switch Input Rental Position Control RENTAL Signal Power Supply Failure...
  • Page 53 Signal Signal Function Function Name Name 62 OUT OSD-B Blue Output AMP VREF Standard Voltage Input 63 OUT OSD-G Green Output 64 OUT OSD-R Red Output CTL (-) CTL (-) 65 OUT A-MUTE Audio Mute Output CTL (+) CTL (+) Capstan Motor FWD/REV 66 OUT C-F/R Control Signal...
  • Page 54: Lead Identifications

    LEAD IDENTIFICATIONS 2SD2627LS-FEC-YB11 PT204-6B-12 2SK2662 TT2084LS-YB11 MID-32A22 2SD400(F) S: Souce E: Emitter D: Drain C: Collector G: Gate B: Base B C E E C B S D G LA78040A AN5522 2SC1627Y-TPE2 BN1F4M-T KRA103M 2SA950(Y,O) KTC3199(GR) 2SA1346 KTA1271(Y) 2SC2785(J,H,F) 2SC1815-GR(TPE2) 2SC2482 TPE6 KTA1266(GR) 2SC3331(T,U)
  • Page 55 DECK MECHANISM SECTION 19" COLOR TV/VCR COMBINATION SC319C/6319CC/EWC1902 Sec. 2: Deck Mechanism Section I Standard Maintenance I Alignment for Mechanism I Disassembly/Assembly of Mechanism I Alignment Procedures of Mechanism TABLE OF CONTENTS Standard Maintenance..............2-1-1 Service Fixtures and Tools .
  • Page 56: Standard Maintenance

    STANDARD MAINTENANCE Service Schedule of Components H: Hours : Check I: Change Deck Periodic Service Schedule Ref.No. Part Name 1,000 H 2,000 H 3,000 H 4,000 H Cylinder Assembly Loading Motor Assembly Pulley Assembly Tension Lever Sub Assembly AC Head Assembly B573,B574 Reel S, Reel T Capstan Motor...
  • Page 57 Cleaning Cleaning of Audio Control Head Clean the head with a cotton swab. Cleaning of Video Head Procedure Clean the head with a head cleaning stick or chamois 1.Remove the top cabinet. cloth. 2.Dip the cotton swab in 90% isopropyl alcohol and Procedure clean the audio control head.
  • Page 58: Service Fixtures And Tools

    SERVICE FIXTURE AND TOOLS J-1-1, J-1-2 Ref. No. Name Part No. Adjustment J-1-1 Alignment Tape FL8A Head Adjustment of Audio Control Head J-1-2 Alignment Tape FL8N Azimuth and X Value Adjustment of Audio Control (2Head only) Head / Adjustment of Envelope Waveform FL8NW (4Head only) Guide Roller Adj.Screwdriver...
  • Page 59: Mechanical Alignment Procedures

    MECHANICAL ALIGNMENT PROCEDURES Explanation of alignment for the tape to correctly run B. Method to place the Cassette Holder in the tape- starts on the next page. Refer to the information below loaded position without a cassette tape on this page if a tape gets stuck, for example, in the 1.
  • Page 60 1.Tape Interchangeability Alignment Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the center position every time a tape is loaded or unloaded. (Refer to page 2-3-4, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (FL8N) Guide Roller Adj.
  • Page 61 1-A. Preliminary/Final Checking and 3. Check to see that the tape runs without creasing at Alignment of Tape Path Take-up Guide Post [4] or without snaking between Guide Roller [3] and AC Head. (Fig. M3 and M5) Purpose: 4. If creasing or snaking is apparent, adjust the Tilt To make sure that the tape path is well stabilized.
  • Page 62 6. Press CH DOWN button on the unit until the CTL 1-D. Azimuth Alignment of Audio/Control/ waveform has shifted from its original position (not Erase Head the position achieved in step 5, but the position of Purpose: CTL waveform in step 4) by approximately -2msec. To correct the Azimuth alignment so that the Audio/ Make sure that the envelope is simply attenuated Control/Erase Head meets tape tracks properly.
  • Page 63: Disassembly/assembly Procedures Of Deck Mechanism

    DISASSEMBLY/ASSEMBLY PROCEDURES OF DECK MECHANISM Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS on page 1-6-1.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 64 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER [33] [2],[25] M Brake T Assembly DM1,DM16 *(P-6) [34] [2],[25] M Brake S Assembly DM1,DM16 *(P-7) Tension Lever Sub [35] [34] DM1,DM16 Assembly [36] [35] T Lever Holder DM1,DM16 *(L-6) [37] [33]...
  • Page 65 Top View [41] [42] [46] [43] [14] [13] [11] [15] [35] [36] [10] [12] [34] [33] [40] [29] [38] [37] [39] Fig. DM1 Bottom View [19] [32] [31] [24] [26] [27] [25] [23] [28] [22] [20] [21] [30] Fig. DM2 2-4-3 U25NDA...
  • Page 66 (S-1) (S-1) (S-2) (P-1) (S-3) (S-4) Fig. DM5 Fig. DM3 [46] Pin D Pin C Pull up Slide (L-8) Pin A Pin B Slot A (S-5) Slots B Slot A First, while pushing the locking tab as shown in the right, slide and pull up the right side on [2] to release Pin A and Pin B from the slots A.
  • Page 67 (S-7) (S-8) [14] (S-9) [15] Desolder from bottom (S-6) Lead with White Stripe Belt View for A Fig. DM7 Fig. DM9 Adj. Screw [17] After removing the Screw (S-10), [11] while pressing the Locking Tab (L-1) (L-3) (L-2) (L-3), remove [16]. (P-3) [16] [13]...
  • Page 68 Cap Belt Portions A on [21] must be set in the slot on [20] as shown. (C-1) [19] [20] Portions A Portions A View for A [21] Fig. DM12 (S-11) Fig. DM11 2-4-6 U25NDA...
  • Page 69 [25] (C-5) (C-2) (C-3) [22] [23] (S-12) (P-4) [27] (L-4) (C-4) [26] [28] [24] (P-4) [28] When installing [23], install the spring (P-4) to [28] as Position of Mode Lever when installed shown in the left figure, and then install [23] while Pin of [34] Pin on Pin of [30]...
  • Page 70 Refer to the Alignment Section, Page 2-4-9. [42] [41] [43] (P-5) [30] (L-7) [32] [29] [31] (L-5) Fig. DM17 Fig. DM15 [35] (C-7) [38] (C-6) (P-7) [40] [37] turn (L-6) [39] [44] [45] Slide (P-6) [34] turn [33] [36] Fig. DM18 turn Fig.
  • Page 71: Alignment Procedures Of Mechanism

    ALIGNMENT PROCEDURES OF MECHANISM Alignment 1 The following procedures describe how to align the individual gears and levers that make up the tape Loading Arm, S and T Assembly loading/unloading mechanism. Since information about the state of the mechanism is provided to the Install Loading Arm S and T Assembly so that their System Control Circuit only through the Mode Switch, triangle marks point to each other as shown in Fig.
  • Page 72 Alignment 3 Cam Gear (A), Rack Assembly Install the Rack Assembly so that the first tooth on the gear of the Rack Assembly meets the first groove on the Cam Gear (A) as shown in Fig. AL4. Cam Gear (A) Top View Alignment 3 First tooth...
  • Page 73 EXPLODED VIEWS AND PARTS LIST SECTION 19" COLOR TV/VCR COMBINATION SC319C/6319CC/EWC1902 Sec. 3: Exploded views and Parts List Section I Exploded views I Parts List TABLE OF CONTENTS Cabinet Exploded Views ..............3-1-1 Packing Exploded Views .
  • Page 74 EXPLODED VIEWS Cabinet SHINWHA TAPE SGT-730 V501-1 (BLACK) V501-2 Details for L551 SHINWHA TAPE SGT-730 and surrounding parts L551 (WHITE) SCOTCH TAPE #880 V501-3 CLN551 CRT CBA L551 DG601 V501 SCOTCH TAPE #880 SP801 W601 TL17 TB26 TB22 TL16 TL17 CL802 TL17 A1-1...
  • Page 75 Packing TAPE S-14 TAPE 3-1-3 T7300PEX...
  • Page 76 DECK EXPLODED VIEWS Deck Mechanism View 1 Mark Description Part No. (Blue grease) Floil G-374G 0VZZ00109 SLIDUS OIL #150 0VZZ00226 L1467 B494 B553 L1191 B411 B567 L1053 B410 L1051 Chassis Assembly Top View (Lubricating Point) B501 B560 L1450 B426 L1466 B121 B126 L1468...
  • Page 77 Deck Mechanism View 2 Mark Description Part No. Floil G-374G (Blue grease) 0VZZ00109 B574 B508 B148 B573 B487 L1406 B522 B518 B520 B521 B414 B564 B499 B558 B585 B557 B416 B572 B565 B525 L1151 B417 B568 B569 B133 B551 B505 B488 B491 Bottom Side...
  • Page 78 Deck Mechanism View 3 Mark Description Part No. Floil G-374G (Blue grease) 0VZZ00109 L1321 B347 Note: There are two different, but interchangeable types of CLEANER LEVER(B359) in this model, and have different combination with B361. Please L1321 see Table 1 for details and combination. (Refer to DECK PARTS LIST section on page 3-4-1.) Table 1 (B359 and B361 Combination) B359 CLEANER LEVER...
  • Page 79 Comparison Chart of Models and Marks TL14 SCREW, B-TIGHT M3X8 BIND HEAD+ GBMB3080 TL15 SCREW TAPPING M4X14 DBU14140 Model Mark TL16 SCREW, P-TIGHT 3X10 BIND HEAD+ GBMP3100 SC319C TL17 SCREW, P-TIGHT M3X10 WASHER GCMP3100 6319CC HEAD+ EWC1902 PACKING CARTON T7300UA 0EM301574 CARTON T7302UC 0EM407007...
  • Page 80 Ref. No. Mark Description Part No. L551: Deflection V501: CRT Type No. V501: CRT Part No. Yoke Part No. V501# CRT A48JLL90X TCRT190QS009 CRT A48LRH93X(W) TCRT190P7002 LLBY00ZSY007 V501-1 C.P.MAGNET JH225-014 XM04000BV009 CRT A48LRH93X(W) TCRT190P7002 LLBY00ZQS005 V501-2 WEDGE FT-00110W XV10000T4001 CRT A48LGS30X TCRT190THA01 LLBY00ZTHA01 V501-3...
  • Page 81: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. C235 CERAMIC CAP.(AX) Y M 0.01µF/16V CCA1CMT0Y103 Before replacing any of these components, read care- C236 CERAMIC CAP.(AX) F Z 0.047µF/16V CCA1CZTFZ473 fully the product safety notice in this service manual.
  • Page 82 Ref. No. Description Part No. Ref. No. Description Part No. C323 ELECTROLYTIC CAP. 470µF/10V M or CE1AMASDL471 CHIP CERAMIC CAP. F Z 0.1µF/25V CHD1EZB0F104 ELECTROLYTIC CAP. 470µF/10V M CE1AMASTL471 C450 CHIP CERAMIC CAP. CH J 220pF/50V CHD1JJBCH221 C325 ELECTROLYTIC CAP. 2.2µF/50V M LL or CE1JMASLL2R2 C492 ELECTROLYTIC CAP.
  • Page 83 Ref. No. Description Part No. Ref. No. Description Part No. C613 FILM CAP.(P) 0.001µF/50V J or CMA1JJS00102 C861 CHIP CERAMIC CAP. CH J 100pF/50V CHD1JJBCH101 FILM CAP.(P) 0.001µF/50V J CA1J102MS029 C862 CHIP CERAMIC CAP. B K 0.01µF/50V CHD1JKB0B103 C614# FILM CAP.(P) 0.082µF/50V J or CMA1JJS00823 C863 ELECTROLYTIC CAP.
  • Page 84 Ref. No. Description Part No. Ref. No. Description Part No. D312 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 SCHOTTKY BARRIER DIODE ERA81-004 QDPZERA81004 SWITCHING DIODE 1N4148 NDTZ001N4148 D619 DIODE FR104-B or NDLZ000FR104 D313 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 RECTIFIER DIODE 10ELS2 or QDQZ0010ELS2 SWITCHING DIODE 1N4148 NDTZ001N4148...
  • Page 85 Ref. No. Description Part No. Ref. No. Description Part No. VERTICAL OUTPUT IC LA78040A QSBBA0SSY003 Q491 TRANSISTOR 2SC2785(F) or QQSF02SC2785 IC601# PHOTOCOUPLER LTV-817B-F or NPEB0LTV817F TRANSISTOR 2SC2785(H) or QQSH02SC2785 PHOTOCOUPLER LTV-817C-F or NPEC0LTV817F TRANSISTOR 2SC2785(J) or QQSJ02SC2785 PHOTO COUPLER PC817X6 QPE600PC817X TRANSISTOR KTC3199(GR) or NQS10KTC3199...
  • Page 86 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/6W J 5.6k Ω TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815 RCX6JATZ0562 CHIP RES.(1608) 1/10W J 1k Ω Q874 TRANSISTOR 2SC3331(T) or QSC3331TNPAA R243 RRXAJB5Z0102 CHIP RES.(1608) 1/10W J 1M Ω TRANSISTOR 2SC3331(U) or QSC3331UNPAA R244 RRXAJB5Z0105...
  • Page 87 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/6W J 180k Ω CARBON RES. 1/4W J 5.1k Ω or RCX6JATZ0184 R560 RCX4JATZ0512 CHIP RES.(1608) 1/10W J 15k Ω CARBON RES. 1/6W J 5.1k Ω R322 RRXAJB5Z0153 RCX6JATZ0512 CHIP RES.(1608) 1/10W J 6.8k Ω...
  • Page 88 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/6W J 220 Ω CARBON RES. 1/6W J 68k Ω RCX6JATZ0221 RCX6JATZ0683 CARBON RES. 1/4W J 220 Ω or CARBON RES. 1/4W J 22 Ω or R607 RCX4JATZ0221 R650# RCX4JATZ0220 CARBON RES.
  • Page 89 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/6W J 820 Ω RCX6JATZ0821 JK501# CRT SOCKET ISMS02S JSCC220PK003 SWITCHES JK701 RCA JACK(YELLOW) MSP-281V4-B or JXRL010LY003 RCA JACK(YELLOW) AV1-15-3 JXRL010RP013 SW201 TACT SWITCH SKQSAB or SST0101AL038 JK702 RCA JACK(WHITE) MSP-281V1-B or JXRL010LY005 TACT SWITCH SKHHAM or...
  • Page 90 Ref. No. Description Part No. Q501 TRANSISTOR 2SC2482 TPE6 or QQSZ02SC2482 TRANSISTOR 2SC3468(E)-AE or QQSE02SC3468 TRANSISTOR 2SC3468(D)-AE or QQSD02SC3468 TRANSISTOR KTC3207 NQSZ0KTC3207 Q502 TRANSISTOR 2SC2482 TPE6 or QQSZ02SC2482 TRANSISTOR 2SC3468(E)-AE or QQSE02SC3468 TRANSISTOR 2SC3468(D)-AE or QQSD02SC3468 TRANSISTOR KTC3207 NQSZ0KTC3207 Q503 TRANSISTOR 2SC2482 TPE6 or QQSZ02SC2482 TRANSISTOR 2SC3468(E)-AE or...
  • Page 91 DECK PARTS LIST Note: There are two different, but interchangeable Ref.No Description Part No. types of CLEANER LEVER(B359) in this model, and B499 T LEVER HOLDER MK10 0VM304419 have different combination with B361. Please see Table B501 WORM HOLDER MK11 0VM305067 1 for details and combination.
  • Page 92 Printed in Japan 2002-02-20 HO...

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