Symphonic WF719 Service Manual
  1. Manuals
  2. Brands
  3. Symphonic Manuals
  4. TV
  5. WF719
  6. Service manual
Symphonic WF719 Service Manual

Symphonic WF719 Service Manual

19" color tv/dvd/vcr
Hide thumbs Also See for WF719:
Table of Contents

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA's
19" COLOR TV/DVD/VCR
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
WF719
Sec. 3: Exploded views
and Parts List Section
I Exploded views
I Parts List

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the WF719 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Symphonic WF719

Summary of Contents for Symphonic WF719

  • Page 1 Sec. 1: Main Section and Parts List Section I Specifications I Standard Maintenance I Alignment for Mechanism I Preparation for Servicing I Exploded views I Disassembly/Assembly of Mechanism I Parts List I Adjustment Procedures I Schematic Diagrams I CBA’s 19" COLOR TV/DVD/VCR WF719...
  • Page 2 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/DVD/VCR WF719 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 Laser Beam 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 — — Horizontal —...
  • Page 5 <VCR> Description Condition Unit Nominal Limit 1. Horizontal Resolution (R/P, SP) Line µS 2. Jitter (Low) (R/P, SP) 3. S/N Chroma AM(SP) (R/P, SP) PM(SP) (R/P, SP) 4. Wow & Flutter (JIS, UNWTD) (R/P, SP) 0.25 <TUNER> Description Condition Unit Nominal Limit 1.

  • Page 6: Laser Beam Safety Precautions

    LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30cm away from the pickup lens when the diode is turned on.

  • Page 7: 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 8 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 9 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 10 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, Chassis or Secondary Conductor 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 11: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack IC 1. The output pin of the 3 pin Regulator ICs is indi- Caution: cated as shown: 3. Do not apply the hot air to the chip parts around the Flat Pack-IC for over 6 seconds as damage may occur to the chip parts.
  • Page 12 b. The "I" mark on the Flat Pack - IC indicates pin 1 (See Fig. S-1-6). Make sure this mark matches the 1 on the CBA when positioning for installation. Then pre - solder the four corners of the Flat Pack- IC (See Fig.
  • Page 13 Instructions for Handling Presolder 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 H. Shift adjustment mode: See adjust- Caution: 1 ment instructions page 1-8-2. 1. Optical sensors system are used for Tape Start and V.size/V. shift adjustment: See adjust- End Sensor on this equipment. Read this page ment instructions page 1-8-2.

  • Page 15: Operating Controls And Functions

    OPERATING CONTROLS AND FUNCTIONS - TV/DVD/VCR FRONT PANEL - DVD buttons TV/VCR buttons POWER OLUME SKIP PLAY SKIP STOP OPEN/CLOSE SELECT CHANNEL REC/OTR PLAY F.FWD STOP/EJECT HEADPHONE VIDEO AUDIO TV/VCR SEARCH 1112 13 14 4 STOP Button - REMOTE CONTROL - Stops operation of the disc.
  • Page 16 1-6-2 TD859IB...

  • Page 17: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart REMOVAL This flowchart indicates the disassembly steps for the REMOVE/ LOC. PART cabinet parts, and the CBA in order to gain access to *UNHOOK/UNLOCK/ Fig. Note item(s) to be serviced. When reassembling, follow the RELEASE/UNPLUG/ steps in reverse order.
  • Page 18 Reference Notes in the Table 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. Reference Notes in the Table CAUTION 1: Discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap.
  • Page 19 [1] REAR CABINET ANT. Fig. 1 [1] REAR CABINET Fig. 2 1-7-3 TD859DC...
  • Page 20 [5] Shield Box [3] Tray Chassis Unit [6] DVD Mechanism [10] Deck Assembly S-10 S-10 H.V. CBA S-10 S-12 [8] Power Supply/ AV CBA [9] Function [2] H.V. CBA [11] Main (wih Holder) S-11 S-11 Fig. 3 1-7-4 TD859DC...
  • Page 21 Anode Cap CRT CBA [4] CRT Fig. 4 CN201 [7] DVD Main CBA Unit CN301 DVD Mechanism Short the three short lands by soldering Slide Pickup Unit View for A View for B Fig. 5 1-7-5 TD859DC...
  • Page 22 DVD MAIN CBA FACTORY USE ONLY CN401 CN601 ANODE TO SPEAKER CN2801 CN2601 CN2401 CN2402 AC CORD CN2602 FUNCTION CBA POWER SUPPLY/ AV CBA CN2803 CN2804 CN2805 CRT CBA MAIN CBA SCREEN CL1403 CN1804 CN1803 CN1805 FOCUS CN504A CL501B CL1401 CN501 CL1402 CL1201...

  • Page 23: 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. (Use main power on the TV NOTE: unit.) Electrical adjustments are required after replacing 3.
  • Page 24 2. H Adjustment 3. C-Trap Adjustment Purpose: To get correct horizontal position and size of Purpose: To get minimum leakage of the color signal screen image. carrier. Symptom of Misadjustment: Horizontal position and Symptom of Misadjustment: If C-Trap Adjustment is size of screen image may not be properly displayed.
  • Page 25 4. V. Size Adjustment 6. H. Shift Adjustment Purpose: To obtain correct vertical height of screen Purpose: To obtain correct horizontal position and image. size of screen image. Symptom of Misadjustment: If V. Size is incorrect, Symptom of Misadjustment: Horizontal position and vertical height of image on the screen may not be size of screen image may not be properly displayed.
  • Page 26 8. Sub-Brightness Adjustment Notes: Screen Control FBT --- H.V. CBA FBT= Fly Back Transformer Purpose: To get proper brightness. Use the Remote Control Unit Symptom of Misadjustment: If Sub-Brightness is 1. Degauss the CRT and allow CRT to operate for 20 incorrect, proper brightness cannot be obtained by minutes before starting the alignment.
  • Page 27 9. Focus Adjustment 4. Press "CH o" or "CH p" button on the remote con- trol unit if necessary. The value will be changed in Purpose: Set the optimum Focus. 0.5H steps up or down. Adjustable range is up to 9.5H.
  • Page 28 14. Convergence Adjustment 5. Remove the DY Wedges and slightly tilt the Deflec- tion Yoke horizontally and vertically to obtain the Purpose: To obtain proper convergence of red, green best overall convergence. and blue beams. 6. Fix the Deflection Yoke by carefully inserting the Symptom of Misadjustment: If Convergence Adjust- DY Wedges between CRT and Deflection Yoke.

  • Page 29: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc on the tray. 5. After programming is finished, the tray opens auto- 2. To put the DVD player into version up mode, press matically. Fig. c appears on the screen. [9], [8], [7], [6], and [SEARCH MODE] buttons on the remote control unit in that order.

  • Page 30: Block Diagrams

    BLOCK DIAGRAMS <TV/VCR Section> Servo/System Control Block Diagram IC1201 FUNCTION CBA (SERVO/SYSTEM CONTROL) SW1201 SW1203, AL+5V MAIN CBA SW1206 SW1210 SW2401 SW2408 CN2805 CN1805 KEY SWITCH KEY0 KEY SWITCH KEY1 KEY1 RS1201 CN2402 CN2803 CN1804 FROM/TO Q2621 REMOTE 20 SDATA SDATA SDATA REMOTE...
  • Page 31 Video Block Diagram REC VIDEO SIGNAL PB VIDEO SIGNAL MODE: SP/REC MAIN CBA TP1402 X1401 Q1401 3.58MHz V-OUT V-OUT BUFFER CHROMA VIDEO BLOCK EXT-V-IN IC1401 VIDEO/AUDIO SIGNAL PROCESS 62 61 TU1001 Q1402 (TUNER UNIT) CCD 1H BUFFER DELAY VIDEO CHARA LUMINANCE DOC YNR Y/C COMB SIGNAL PROCESS...
  • Page 32 Audio Block Diagram DVD AUDIO SIGNAL DATA(AUDIO) SIGNAL REC-AUDIO SIGNAL PB-AUDIO SIGNAL CN1805 CN2805 CN2801 CL2801 SP2801 SP-L SP-L SPEAKER IC2201 SP-GND L-CH (OP AMP) WF19 CN2401 CN2803 CN1804 4 DVD-A(R) DVD-A(R) FROM DVD FUNCTION CBA AUDIO BLOCK 6 DVD-A(L) DVD-A(L) DVD-A-MUTE <DVD SECITON>...
  • Page 33 Hi-Fi Audio Block Diagram PB-AUDIO SIGNAL REC-AUDIO SIGNAL MAIN CBA IC1751(MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP) CONT TU1001 (TUNER UNIT) SERIAL FROM/TO Q1010 DATA SERVO/ SYSTEM BUFFER DECODER ST/SAP CONTROL BLOCK DEMOD FILTER DEMOD MATRIX DEMOD STEREO PILOT FILTER CANCEL RIPPLE...
  • Page 34 Chroma Block Diagram REC VIDEO SIGNAL PB VIDEO SIGNAL DVD VIDEO SIGNAL MAIN CBA TU1001 (TUNER UNIT) IC1301 (VIDEO/AUDIO/CHROMA/DEFLECTION) TO POWER +5.7V +5V CTRL SUPPLY BLOCK REG. SERIAL TUNER TV-VIDEO INTELLIGENT FROM V-OUT MONITORING VIDEO BLOCK IC1802 EXT-V-IN LINE (OUTPUT SELECT) TUNER SYNC CN2804 Q2210...
  • Page 35 CRT/H.V. Block Diagram DVD VIDEO SIGNAL REC VIDEO SIGNAL PB VIDEO SIGNAL IC551 (V-DEFLECTION CONTROL) L551 WF11 D.Y. THERMAL PROTECTION DRIVE Q572 H.DRIVE PULSE DRIVE WF10 Q571 CN571 T572 H.OUTPUT J553 CN502 CL502B CL502A FROM 5 +B POWER 6 +B SUPPLY BLOCK FOCUS VR...
  • Page 36 Power Supply Block Diagram CAUTION ! NOTE : Fixed voltage power supply circuit is used in this unit. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, The voltage for parts in hot circuit is measured using If Main Fuse (F2601) is blown, check to see that all components in the power supply REPLACE ONLY WITH SAME TYPE 4 A, 125V FUSE.
  • Page 37 BLOCK DIAGRAMS < DVD Section > DVD System Control/Servo Block Diagram FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL SLED SERVO SIGNAL SPINDLE SERVO SIGNAL IC101 (MICRO CONTROLLER) EXT CLOCK CLK33M BE CLOCK IC451 (CLOCK GENERATOR) X451 MULTI X'TAL 36.864MHz PLL2 FSEL PCM-SCLK A-MUTE A-MUTE...
  • Page 38 Digital Signal Process Block Diagram DATA(AUDIO) SIGNAL DATA(VIDEO/AUDIO) SIGNAL DVD VIDEO SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL IC102 (SDRAM) IC101 (MICRO CONTROLLER) SDRAM ADDRESS(0-10) SDRAM ADDRESS(0-10) DATA SDRAM EXTERNAL MEMORY DECODER INST. DECODER STREAM SDRAM DATA(0-31) SDRAM DATA(0-31) DATA PIXEL OPERATION INST.
  • Page 39 DVD Audio Block Diagram DATA(AUDIO) SIGNAL DVD AUDIO SIGNAL IC601 (AUDIO DAC) SPDIF FROM L-CH 4X/8X DIGITAL LPF+AMP PCM-BCK OVERSAMPLING ENHANCED SIGNAL SERIAL PCM-DATA0 DIGITAL FILTER MULTI-LEVEL PROCESS PORT PCM-LRCLK /FUNCTION DELTA-SIGMA BLOCK R-CH MODULATOR LPF+AMP CONTROLLER CN601 12 SPDIF TO AUDIO BLOCK 7 DVD-A(L) <TV/VCR SECTION>...

  • Page 40: 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 41 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 42 Main 1/5 Schematic Diagram < TV/VCR Section > MAIN 1/5 Ref No. Position IC1201 IC1202 TRANSISTORS Q1205 Q1206 Q1207 Q1210 Q1211 CONNECTOR CL1201 TEST POINT TP1201 1-11-3 1-11-4 TD859SCM1...
  • Page 43 Main 2/5 Schematic Diagram < TV/VCR Section > REC VIDEO SIGNAL PB VIDEO(TV/VCR/LINE) SIGNAL REC AUDIO SIGNAL PB AUDIO (TV/VCR/LINE) SIGNAL MAIN 2/5 Ref No. Position IC1401 TRANSISTORS Q1401 Q1402 Q1403 Q1871 Q1872 Q1873 Q1874 Q1875 CONNECTORS CL1401 CL1402 CL1403 TEST POINTS TP1401 TP1402...
  • Page 44 Main 3/5 Schematic Diagram < TV/VCR Section > REC VIDEO SIGNAL PB VIDEO(TV/VCR/LINE) SIGNAL DVD VIDEO SIGNAL MAIN 3/5 Ref No. Position IC1301 TRANSISTORS Q1010 Q1301 Q1351 CONNECTOR CN1301 1-11-7 1-11-8 TD859SCM3...
  • Page 45 Main 4/5 Schematic Diagram < TV/VCR Section > REC AUDIO SIGNAL PB AUDIO (TV/VCR/LINE) SIGNAL MAIN 4/5 Ref No. Position IC1751 TRANSISTOR Q1701 TEST POINTS TP1701 TP1702 1-11-9 1-11-10 TD859SCM4...
  • Page 46 Main 5/5 Schematic Diagram < TV/VCR Section > DVD VIDEO SIGNAL REC AUDIO SIGNAL PB AUDIO (TV/VCR/LINE) SIGNAL DVD AUDIO SIGNAL MAIN 5/5 Ref No. Position IC1602 AA-2 IC1801 IC1802 TRANSISTORS Q1608 Q1611 Q1612 BB-3 Q1613 Q1803 Q1806 CONNECTORS BB-1 CN1802 CN1803 CN1804...
  • Page 47 Power Supply/AV 1/2 Schematic Diagram < TV/VCR Section > VOLTAGE CHART (Power off mode) Ref. No. IC2601 13.2 12.1 CAUTION ! Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. IC2602 NOTE : If Main Fuse (F2601) is blown, check to see that all components in the power supply IC2603 The voltage for parts in hot circuit is measured...
  • Page 48 Power Supply/AV 2/2 Schematic Diagram < TV/VCR Section > DVD VIDEO SIGNAL DVD AUDIO SIGNAL DATA (AUDIO) SIGNAL POWER SUPPLY/AV 2/2 Ref No. Position IC2201 TRANSISTORS Q2205 Q2207 Q2210 Q2211 Q2614 Q2621 Q2622 Q2623 CONNECTORS CN2401 CN2402 CN2803 TEST POINTS TP2201 TP2202 TP2203...
  • Page 49 H.V. Schematic Diagram < TV/VCR Section > H.V. Ref No. Position IC551 TRANSISTORS Q571 Q572 Q591 CONNECTORS CL501A CL502A CL503A CN571 TEST POINTS J551 J552 J553 J563 1-11-17 1-11-18 TD859SCHV...
  • Page 50 CRT Schematic Diagram < TV/VCR Section > REC VIDEO SIGNAL PB VIDEO(TV/VCR/LINE)+DVD VIDEO SIGNAL Ref No. Position TRANSISTORS Q501 Q502 Q503 CONNECTORS CL501B CL504A CN501 TD859SCCRT Function Schematic Diagram < TV/VCR Section > REC AUDIO SIGNAL PB AUDIO (TV/VCR/LINE) SIGNAL DVD AUDIO SIGNAL 1-11-19 TD859SCF...
  • Page 51 DVD Main 1/3 Schematic Diagram < DVD Section > DATA(VIDEO+AUDIO) FOCUS SERVO SIGNAL SPINDLE SERVO SIGNAL TRACKING SERVO SIGNAL SLED SERVO SIGNAL DVD MAIN 1/3 Ref No. Position IC201 IC202 IC301 IC461 TRANSISTORS Q251 Q252 Q253 Q254 CONNECTORS CN201 CN301 CN401 1-11-22 TD859SCD1...
  • Page 52 DVD Main 2/3 Schematic Diagram < DVD Section > DATA(VIDEO+AUDIO) SPINDLE SERVO SIGNAL DATA (AUDIO) SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL DVD VIDEO SIGNAL SLED SERVO SIGNAL DVD MAIN 2/3 Ref No. Position IC101 1-11-23 1-11-24 TD859SCD2...
  • Page 53 IC101 VOLTAGE CHART PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----...
  • Page 54 DVD Main 3/3 Schematic Diagram < DVD Section > DVD VIDEO SIGNAL DVD AUDIO SIGNAL DATA (AUDIO) SIGNAL DVD MAIN 3/3 Ref No. Position IC102 IC103 IC104 IC105 IC451 IC601 CONNECTOR CN601 1-11-27 1-11-28 TD859SCD3...
  • Page 55 Main CBA Top View < TV/VCR Section > Sensor CBA Top View TP1802 TP1201 BHB300F01014-A NA-IN-YCA CTL-AMP-OUT BHB300F01014-B MAIN CBA Ref No. Position IC1201 IC1202 IC1301 IC1401 IC1602 IC1751 IC1801 IC1802 TRANSISTORS Q1010 Q1205 Q1206 Q1207 Q1210 Q1211 Q1301 Q1351 Q1401 Q1402 Q1403...
  • Page 56 Main CBA Bottom View < TV/VCR Section > PIN 41 OF IC1301 PIN 7 OF IC1401 PIN 42 OF IC1401 WF16 PIN 59 OF IC1201 WF15 PIN 58 OF IC1201 PIN 61 OF IC1401 1-11-31 1-11-32 BTD850F01011...
  • Page 57 Power Supply / AV CBA Top View < TV/VCR Section > CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION: FOR CONTINUED PROTECTION AGAINST RISK Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
  • Page 58 Power Supply / AV CBA Bottom View < TV/VCR Section > CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION: FOR CONTINUED PROTECTION AGAINST RISK Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
  • Page 59 H.V. CBA Top View < TV/VCR Section > H.V. CBA Ref No. Position IC551 TRANSISTORS Q571 Q572 Q591 CONNECTORS CL501A CL502A CL503A CN571 TEST POINTS J551 J552 J553 J553 R583 J563 J563 (H Adjustment) +B ADJ FOCUS-VR (UPPER SIDE) SCREEN-VR (LOWER SIDE) 1-11-37 1-11-38...
  • Page 60 H.V. CBA Bottom View < TV/VCR Section > WF11 PIN 5 OF CN571 WF10 Q571 Collector 1-11-39 1-11-40 BTD850F01031-A...
  • Page 61 CRT CBA Top View < TV/VCR Section > CRT CBA Bottom View < TV/VCR Section > CRT CBA Ref No. Position TRANSISTORS Q501 Q502 Q503 CONNECTORS CL501B CL504A WF14 WF12 WF13 CN501 Q503 Q501 Q502 Collector Collector Collector 1-11-41 1-11-42 BTD850F01031-B...
  • Page 62 Function CBA Top View < TV/VCR Section > Function CBA Bottom View < TV/VCR Section > 1-11-43 1-11-44 BTD850F01021B...
  • Page 63 Junction-A CBA Junction-A CBA Top View < TV/VCR Section > Bottom View < TV/VCR Section > BTD850F01031-C Junction-B CBA Junction-B CBA Bottom View < TV/VCR Section > Top View < TV/VCR Section > BTD850F01031-D 1-11-45 1-11-46...

  • Page 64: Waveforms

    WAVEFORMS Input: NTSC Color Bar Signal (with 1kHz Audio Signal) --- WF1~WF16 DVD Video (Power on (Stop) MODE) --- WF17, WF18 CD (1KHz Play) --- WF19, WF20 INITIAL POSITION: Unplug unit from AC outlet for at least five minutes, reconnect to AC outlet and then turn power on. (Brightness---Center Color---Center Tint --- Center Contrast---Approx 70%) 5 ms 0.5 V...

  • Page 65: Wiring Diagrams

    WIRING DIAGRAM < TV/VCR SECTION > CN1805 CN2805 CN2801 SENSOR CBA SENSOR CBA CN1802 CL2801 CL1801 SP2801 SP-L WIRING DIAGRAM FOR SECTION 2 (END-SENSOR) (ST-SENSOR) SP1801 SP-R SP-L SPEAKER SPEAKER SP-GND (DECK MECHANISM) BHB300F01014-A,B BHB300F01014-A,B L-CH SP-GND R-CH KEY1 FUNCTION CBA CAPSTAN BTD850F01021B MOTOR...
  • Page 66 WIRING DIAGRAM < DVD SECTION > DVD MECHA SW3001 TRAY-OUT SW3002 CN601 TRAY-IN SPDIF CN301 AUDIO+5V FG-IN SENSOR DVD-ON+3.3V DVD-A(R) SP(+) FG CBA SP(-) DVD-A(L) TRAY-OUT TO CN2401 SPINDLE DVD-A-MUTE TRAY-IN MOTOR SLED 8 SL(-) MOTOR DVD-C 9 SL(+) DRIVE CBA DVD-Y CN201 CONTINUE...

  • Page 67: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS [ VCD SECTION ] Mode SW : LD-SW LD-SW Position detection A/D Input voltage Limit Symbol (Calculated voltage) 3.76V~4.50V (4.12V) 4.51V~5.00V (5.00V) 0.00V~0.25V (0.00V) 1.06V~1.50V (1.21V) 0.66V~1.05V (0.91V) 1.99V~2.60V (2.17V) 1.51V~1.98V (1.80V) 3.20V~3.75V (3.40V) 0.26V~0.65V (0.44V) 4.51V~5.00V (5.00V) 2.61V~3.19V...
  • Page 68 Chart 1 1) SP MODE 18 RF-SW The first rise of RF-SW after a rise in F-AD signal. F-AD ( Internal Signal ) "H" "H" "Z" C-DRIVE Stop Detection Acceleration Detection Slow Tracking Value PB CTL Reversal Limit Value 66 C-F/R ROLL COMPENSATION (DRUM SERVO)
  • Page 69 Chart 2 2) LP/EP MODE 18 RF-SW The first rise of RF-SW after a rise in F-AD signal. F-AD ( Internal Signal ) "H" "H" "Z" C-DRIVE Stop Detection Acceleration Detection Slow Tracking Value PB CTL Reversal Limit Value 66 C-F/R ROLL COMPENSATION (DRUM SERVO)
  • Page 70 Chart 3 EJECT ST-S/ END-S "OFF" CASS.LOAD LD-FWD 0.2S LD-REV SFT-SW STOP(B) POWER LD-FWD 0.4S 0.2S LD-REV 0.2S LD-FWD 0.5S LD-REV STOP(A) PLAY LD-FWD PLAY LD-FWD RS1(RS2) LD-REV 0.2S LD-FWD FS1(FS2) PLAY PLAY PAUSE (SLOW) LD-FWD STILL(SLOW) PLAY LD-REV 0.2S LD-FWD PLAY STOP...
  • Page 71 Chart 4 STOP(A) STOP LD-REV 0.2S LD-FWD 0.2S STOP /EJECT 1.0S LD-FWD 0.5S LD-REV STOP(A) LD-REV 0.2S LD-FWD 0.2S 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...
  • Page 72 [ DVD SECTION ] Tray Close ~ Play / Play ~ Tray Open Disc Tray Tray Disc Stop Open Close Rotation Play 3.3V Tray OUT (TL220) 3.3V Tray IN (TL221) 1.65V Sled Drive (TP303) 1.65V Disc Drive (TP301) 1.65V Focus Drive (TP304) 1.65V Tracking Drive...

  • Page 73: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS IC1201 (TV/VCR Micro Computer) Signal Function Name “H” ≥ 4.5V, “L” ≤ 1.0V SP/LP/SLP Tape Speed Control Output Signal Function Name External Input or Playback 29 OUT EXT-H LD-SW Loading Switch Input SIgnal Output Power Supply Failure Rental Position Control P-SAFETY 1 30 OUT RENTAL...
  • Page 74 Signal Signal Function Function Name Name V-SYNC V-SYNC Input Drum Motor Pulse D-PFG Generator 60 OUT OSD-BLK Output for Picture Cut off Not Used Not Used AMP VREF 62 OUT OSD-B Blue Output 92 OUT Standard Voltage Input 63 OUT OSD-G Green Output 64 OUT OSD-R Red Output...

  • Page 75: Lead Identifications

    LEAD IDENTIFICATIONS PQ070XF01SZ 2SD400(F) MID-32A22 NJM4558D 2SK2662 PQ018EF01SZ 1: Vin 2: Vo 3: GND 1 2 3 4 E C B 4: Vc S D G AN5522 2SC3331(T,U) KTC3199(GR) 2SC1815-GR(TPE2) LA78040A 2SC1627Y-TPE2 2SC2785(J,H,F) 2SC2120-(O,Y)(TPE2) 2SA950(Y,O) BA1F4M-T KTA1266(GR) KTA1271(Y) BN1F4M-T KTC3198(GR) 2SC3400 KRA103M 2SA1015-GR(TPE2)
  • Page 76 DECK MECHANISM SECTION 19" COLOR TV/DVD/VCR WF719 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 77: 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 B587 Tension Lever Assembly AC Head Assembly B573,B574 Reel (SP)(D2), Reel (TU)(D2) Capstan Motor...
  • Page 78 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 79: 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 80: 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 81 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 (FL8NW) Guide Roller Adj.
  • Page 82 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 83 6. Press CH DOWN button on the unit until the CTL Dropping envelope level at the end of track. waveform has shifted from its original position (not the position achieved in step 5, but the position of CTL waveform in step 4) by approximately -2msec. Make sure that the envelope is simply attenuated (shrinks in height) once CTL waveform passes its original position and is further brought in the minus...

  • Page 84: 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 1-7-1.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 85 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER Loading Arm (TU) (+)Refer to Alignment [32] [33] DM2,DM14 Assembly Sec.Pg.2-4-9 [34] [2],[25] M Brake (TU) Assembly DM1,DM15 *(P-7), Brake Belt [35] [2],[25] M Brake (SP) Assembly DM1,DM15 *(P-8) [36] [35]...
  • Page 86 Top View [41] [42] [46] [43] [14] [13] [11] [15] [36] [10] [12] [35] [34] [40] [29] [30] [16] [39] [38] Fig. DM1 Bottom View [20] [33] [32] [24] [26] [27] [25] [23] [28] [22] [21] [31] Fig. DM2 2-4-3 TD951DA...
  • Page 87 (S-1) (S-1) (L-1) (L-3) (L-2) (S-1A) (P-1) Fig. DM5 [46] Fig. DM3 [47] Pin D (L-14) Pin C Pull up Slide Pin A Pin B Slot A (S-2) Slots B Slot A First, while pushing the locking tab as shown at right, slide and pull up the right side on [2] to release Pin A and Pin B from the slots A.
  • Page 88 (S-4) (S-5) [14] (S-6) [16] [15] Desolder from bottom (S-3) Lead with White Stripe Belt View for A Fig. DM7 Fig. DM9 Adj. Screw [11] [18] (L-4) (L-5) (P-3) [17] [13] [19] [12] (P-4) [10] (P-2) (S-7) Pin of [12] Pin of [10] Fig.
  • Page 89 [22] (C-4) (S-8) (C-1) [23] (L-6) [21] (P-5) [20] Cap Belt (P-5) [28] Fig. DM11 When installing [23], install the spring (P-5) to [28] as shown in the left figure, and then install [23] while Pin on pressing the spring (P-5) to bottom the direction of the arrow in of [23]...
  • Page 90 (P-6) [25] [31] Refer to the Alignment (C-3) Section, Page 2-4-9. (S-9) [29] [33] [30] (L-11) [32] (L-10) (L-8) (C-2) [27] [28] [24] [26] (L-9) Fig. DM14 [36] Position of Mode Lever when installed Break belt Pin of [35] (P-7) Pin of [31] Pin of [34] [34]...
  • Page 91 [42] [41] [43] (L-13) Fig. DM16 (P-9) [44] [45] Slide Fig. DM17 2-4-8 TD951DA...

  • Page 92: Alignment Procedures Of Mechanism

    ALIGNMENT PROCEDURES OF MECHANISM The following procedures describe how to align the Alignment 1 individual gears and levers that make up the tape load- Loading Arm (SP) and (TU) Assembly ing/unloading mechanism. Since information about the state of the mechanism is provided to the System Install Loading Arm (SP) and (TU) Assembly so Control Circuit only through the Mode Switch, it is that their triangle marks point to each other as...
  • Page 93 EXPLODED VIEWS AND PARTS LIST SECTION 19" COLOR TV/DVD/VCR WF719 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 94 EXPLODED VIEWS Cabinet SHINWHA TAPE SGT-730 (BLACK) V501-2 SHINWHA Details for L551 TAPE SGT-730 and surrounding parts V501-1 (WHITE) L551 V501-3 TB18 CRT CBA SCOTCH TAPE #880 CLN551 L551 CL2401 DG601 TB24 DVD Main CBA Unit CL1802 CL2402 TB23 V501 TB17 SP1802 Power Supply/...
  • Page 95 Packing PACKING TAPE TAPE 3-1-3 TD859PEX...
  • Page 96 DECK EXPLODED VIEWS Deck Mechanism View 1 Mark Description Floil G-684G or Multemp MH-D (Blue grease) SLIDUS OIL #150 B494 L1467 L1191 B553 B411 B567 L1053 B410 L1051 Chassis Assembly Top View (Lubricating Point) B501 B560 L1450 L1450 B426 L1466 B121 B126 B492...
  • Page 97 Deck Mechanism View 2 Mark Description Floil G-684G or Multemp MH-D (Blue grease) B587 B521 B487 SLIDUS OIL #150 B416 B591 SANKOUL FG84M (Yellow grease) B520 B590 B522 B499 L1406 B148 B508 B573 B592 B574 B558 B564 B557 B414 B565 B525 L1151 B417...
  • Page 98 Deck Mechanism View 3 Mark Description Floil G-684G or Multemp MH-D (Blue grease) SLIDUS OIL #150 L1321 B347 L1321 B355 B354 B483 L1341 B425 B482 B562 B300 B563 B313 B529 B360 B359 B361 B555 B561 B303 Some Ref. Numbers are not in sequence. B514 3-1-6 Z12N4H2DEX...
  • Page 99 FRONT CABINET TD859UK 0EM101358 REMOTE CONTROL 189/ERC001/NE200UD NE200UD A1-2 CONTROL PLATE TD859UK 0EM201765 DRY BATTERY R6P UM3 or XB0M451GH001 A1-3 BRAND BADGE B8401UB:SYMPHONIC 0EM400974 DRY BATTERY R6P(AR)2PX or XB0M451HU002 A1-4 CASSETTE DOOR TD859UK 0EM408400 DRY BATTERY R6P(AR)2P X ICI or XB0M451HU003 A1-5...
  • Page 100 CRT Warning Label Location Ref. No. Description Part No. V501-2 WEDGE FT-00110W XV10000T4001 CRT Type No. CRT Warning Label V501-3 RUBBER MAGNET 20X10X1.2 XM05000BV001 CRT TYPE F L551# DEFLECTION YOKE KDY3MCB20X LLBY00ZMS016 V501# CRT A48LGS30X TCRT190THA01 V501-1 C.P.MAGNET JH225-014 or XM04000BV009 CPM E-225-F01 XM04000ETC01...
  • Page 101 ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. # have special characteristics important to safety. C1211 CERAMIC CAP .(AX) B K 0.01µF/50V CCA1JKT0B103 Before replacing any of these components, read care- C1212 CERAMIC CAP .(AX) CH J 20pF/50V CCA1JJTCH200 fully the product safety notice in this service manual.
  • Page 102 Ref. No. Description Part No. Ref. No. Description Part No. ELECTROLYTIC CAP . 10µF/50V M CE1JMASTL100 C1445 CERAMIC CAP .(AX) B K 0.01µF/50V CCA1JKT0B103 C1325 ELECTROLYTIC CAP . 1µF/50V M or CE1JMASDL1R0 C1446 ELECTROLYTIC CAP . 1µF/50V M or CE1JMASDL1R0 ELECTROLYTIC CAP .
  • Page 103 Ref. No. Description Part No. Ref. No. Description Part No. C1768 ELECTROLYTIC CAP . 10µF/50V M or CE1JMASDL100 C1802 ELECTROLYTIC CAP . 22µF/50V M or CE1JMASDL220 ELECTROLYTIC CAP . 10µF/50V M CE1JMASTL100 ELECTROLYTIC CAP . 22µF/50V M CE1JMASTL220 C1769 ELECTROLYTIC CAP . 22µF/50V M or CE1JMASDL220 C1803 PCB JUMPER D0.6-P5.0...
  • Page 104 Ref. No. Description Part No. Ref. No. Description Part No. ZENER DIODE DZ-6.2BSBT265 NDTB0DZ6R2BS SWITCHING DIODE 1N4148 NDTZ001N4148 D1203 ZENER DIODE MTZJT-776.2B or QDTB0MTZJ6R2 D1352 ZENER DIODE MTZJT-779.1B or QDTB0MTZJ9R1 ZENER DIODE DZ-6.2BSBT265 NDTB0DZ6R2BS ZENER DIODE DZ-9.1BSBT265 NDTB0DZ9R1BS D1204 LED LTL-4214M1 or NPQZLTL4214M D1353 ZENER DIODE MTZJT-779.1B or...
  • Page 105 Ref. No. Description Part No. Ref. No. Description Part No. CHOKE COIL 47µH-K LLBD00PKV005 Q1402 TRANSISTOR 2SA1175(F) or QQSF02SA1175 L1405 INDUCTOR 47µH-J-26T or LLAXJATTU470 TRANSISTOR KTA1267(GR) or NQS10KTA1267 INDUCTOR 47µH-K-26T LLAXKDTKA470 TRANSISTOR KTA1266(GR) or NQS40KTA1266 L1751 PCB JUMPER D0.6-P5.0 JW5.0T TRANSISTOR 2SA1015-GR(TPE2) QQS102SA1015 L1752...
  • Page 106 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 100k Ω CARBON RES. 1/4W J 560 Ω R1208 RCX4JATZ0104 R1278 RCX4JATZ0561 CARBON RES. 1/4W J 2.2k Ω R1209 PCB JUMPER D0.6-P5.0 JW5.0T R1280 RCX4JATZ0222 CARBON RES. 1/4W G 15k Ω R1210 RCX4GATZ0153 R1290...
  • Page 107 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 330k Ω R1659 PCB JUMPER D0.6-P5.0 JW5.0T R1866 RCX4JATZ0334 CARBON RES. 1/4W J 220 Ω R1660 PCB JUMPER D0.6-P5.0 JW5.0T R1867 RCX4JATZ0221 R1661# METAL OXIDE FILM RES. 1W J 22 Ω or CARBON RES.
  • Page 108 Ref. No. Description Part No. Ref. No. Description Part No. JM1801 PCB JUMPER D0.6-P7.5 JW7.5T C553 ELECTROLYTIC CAP . 2.2µF/50V M LL or CE1JMASLL2R2 JM1803 PCB JUMPER D0.6-P7.5 JW7.5T ELECTROLYTIC CAP . 2.2µF/50V LL CE1JMASLH2R2 JM1805 PCB JUMPER D0.6-P10.0 JW10.0T C555 ELECTROLYTIC CAP .
  • Page 109 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 56k Ω VERTICAL OUTPUT IC LA78040A QSBBA0SSY003 R594# RCX4JATZ0563 COIL R596 PCB JUMPER D0.6-P5.0 JW5.0T CARBON RES. 1/4W J 6.8k Ω R597# RCX4JATZ0682 L505 CHOKE COIL 22µH-K LLBD00PKV006 CARBON RES.
  • Page 110 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 15 Ω R515 RCX4JATZ0150 C2262 ELECTROLYTIC CAP. 47µF/25V M or CE1EMASDL470 CARBON RES. 1/4W J 470 Ω R516 RCX4JATZ0471 ELECTROLYTIC CAP. 47µF/25V M CE1EMASTL470 CARBON RES. 1/4W J 15 Ω R517 RCX4JATZ0150 C2303...
  • Page 111 Ref. No. Description Part No. Ref. No. Description Part No. C2633 ELECTROLYTIC CAP. 47µF/25V M or CE1EMASDL470 D2618# SCHOTTKY BARRIER DIODE 11EQS04 or QD4Z011EQS04 ELECTROLYTIC CAP. 47µF/25V M CE1EMASTL470 SCHOTTKY BARRIER DIODE ERA81-004 QDPZERA81004 C2637 ELECTROLYTIC CAP. 470µF/6.3V M or CE0KMASDL471 D2619 DIODE FR104-B...
  • Page 112 Ref. No. Description Part No. Ref. No. Description Part No. COILS Q2608 TRANSISTOR 2SC2120-O-TPE2 or QQS002SC2120 TRANSISTOR 2SC2120-Y(TPE2) QQSY02SC2120 L2206 PCB JUMPER D0.6-P5.0 JW5.0T Q2609# TRANSISTOR 2SC2120-O-TPE2 or QQS002SC2120 L2401 PCB JUMPER D0.6-P5.0 JW5.0T TRANSISTOR 2SC2120-Y(TPE2) QQSY02SC2120 L2402 PCB JUMPER D0.6-P5.0 JW5.0T Q2610 TRANSISTOR 2SA1175(F) or...
  • Page 113 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 20k Ω R2645# CARBON RES. 1/4W J 220 Ω R2257 RCX4JATZ0203 RCX4JATZ0221 R2646# CARBON RES. 1/4W J 47k Ω R2258 PCB JUMPER D0.6-P5.0 JW5.0T RCX4JATZ0473 CARBON RES. 1/4W J 20k Ω R2647# CARBON RES.
  • Page 114 Ref. No. Description Part No. Ref. No. Description Part No. FUSE HOLDER FH-V-03078 XH01Z00DK001 TACT SWITCH SKHHAM or SST0101AL029 J2080 CERAMIC CAP.(AX) B K 1000pF/50V CCA1JKT0B102 TACT SWITCH KSM0612B SST0101HH003 JK2201 RCA JACK MSP-241V-05 JXRL010LY036 SW2404 TACT SWITCH SKQSAB or SST0101AL038 JS2002 PCB JUMPER D0.6-P5.0...
  • Page 115 DECK PARTS LIST NOTE: Ref. No Description Part No. Four different, but interchangeable, types of B558 B410 PINCH ARM(A) ASSEMBLY(4) MK12 or 0VSA13572 (LOADING MOTOR) may be installed in these models. PINCH ARM(A) ASSEMBLY(5) MK12 0VSA13788 Please confirm B558 (LOADING MOTOR) type by a B411 PINCH SPRING MK12 0VM414644...
  • Page 116 Ref. No Description Part No. L1191 SCREW, S-TIGHT M2.6X8 WASHER HEAD+ GCMS9080 L1321 SCREW, S-TIGHT M3X6 BIND HEAD+ GBMS3060 L1341 SCREW, P-TIGHT M2X6 PAN HEAD+ GPMP2060 L1406 AC HEAD SCREW MK9 0VM410964 L1450 SCREW, SEMS M2.6X5 PAN HEAD+ CPM39050 L1466 SCREW, S-TIGHT M2.6X6 BIND HEAD+ GBMS9060 L1467...
  • Page 117 Printed in Japan 2003-06-18 HO...

Table of Contents