FUNAI TVCR-2104 Service Manual
  1. Manuals
  2. Brands
  3. FUNAI Manuals
  4. TV VCR Combo
  5. TVCR-2104
  6. Service manual
FUNAI TVCR-2104 Service Manual

FUNAI TVCR-2104 Service Manual

21" color tv/vcr combination
Hide thumbs
Table of Contents

Advertisement

Quick Links

SERVICE MANUAL
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA's
I Exploded views
I Parts List
21" COLOR TV/VCR COMBINATION
This service manual is for TVCR-2104
series. When servicing these models,
please confirm a model number on the
rating label located on the backside of
the cabinet.
Refer to the rating label illustration at
right (example: TVCR-A2104).
TVCR-2104
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
I Alignment Procedures of Mechanism
I Deck Exploded Views
I Deck Parts List
model number
PAL
PAL
SECAM
rating label

Advertisement

Table of Contents
loading

Related Manuals for FUNAI TVCR-2104

Summary of Contents for FUNAI TVCR-2104

  • Page 1 I Deck Parts List I Parts List 21" COLOR TV/VCR COMBINATION TVCR-2104 SECAM This service manual is for TVCR-2104 model number series. When servicing these models, please confirm a model number on the rating label located on the backside of the cabinet.

  • Page 2: Table Of Contents

    MAIN SECTION 21" COLOR TV/VCR COMBINATION TVCR-A2104/TVCR-B2104/ TVCR-C2104/TVCR-D2104/ TVCR-A2104T/TVCR-B2104T/ TVCR-C2104T/TVCR-D2104T/ TVCR-A2104TG Sec. 1: Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA’s I Exploded Views I Parts List TABLE OF CONTENTS Specifications ............... . . 1-1-1 Important Safety Precautions .

  • Page 3: 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% mod.(BG/DK), 80.0% mod.(I) Audio: 30kHz div (1kHz Sin) <DEFLECTION> Description Condition Unit Nominal Limit 1. Over Scan —...
  • Page 4 <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) 4. Audio Freq. Response 200Hz (R/P) — 5.0/-10 (-20dB Ref.

  • Page 5: 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 6 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 7 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 8 Safety Check after Servicing Examine the area surrounding the repaired location for Chassis or Secondary Conductor damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the Primary Circuit Terminals specified values in order to verify compliance with safety standards.

  • Page 9: 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] 2.
  • Page 10 1.2. Standard solder e. Soldering Iron Soldering Iron Use a pencil-type soldering iron (less than 30 Tweezers watts). Solder f. Solder Eutectic solder (Tin 63%, Lead 37%) is recom- mended. g. Soldering time Do not apply heat for more than 4 seconds. h.
  • Page 11 b. Affix the wire to a workbench or solid mounting point, as shown in Fig. S-1-5. Desoldering Braid c. Pull up on the wire as the solder melts so as to lift Flat Pack-IC the IC leads from the CBA contact pads, while heating the pins using a fine tip soldering iron or hot air blower.
  • Page 12 <Correct> Presolder Grounding Band 1MΩ Flat Pack-IC 1MΩ Conductive Sheet or Copper Plate Fig. S-1-7 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...

  • Page 13: Preparation For Servicing

    PREPARATION FOR SERVICING How to Enter the Service Mode Adjustment Mode No need to use. Caution: 1 No need to use. 1. Optical sensors system are used for Tape Start and H. Shift adjustment mode: See adjust- End Sensor on this equipment. Read this page ment instructions page 1-6-4.

  • Page 14: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS Comparison Chart of Models and Marks REMOVAL Model Mark REMOVE/ *UNHOOK/ TVCR-A2104 LOC. PART Fig. UNLOCK/RELEASE/ Note TVCR-B2104 UNPLUG/ TVCR-C2104 DESOLDER TVCR-D2104 *CN502, *CN552, TVCR-A2104T Power Unit 3,5 *CN602 TVCR-B2104T TVCR-C2104T Tray TVCR-D2104T Chassis ---------- Unit TVCR-A2104TG H.V./Power 1.
  • Page 15 CRT Ground before removing the Anode Cap. 7. Removal of the Deck Unit. Disconnect the following: Anode Cap, CN501, Remove seven screws (S-6), screw (S-7) and CN551, CN601, CRT CBA, and Power Button. screw (S-8). Then, desolder connectors (CN201, Then pull the Power Unit and Tray Chassis Unit out CL401, CL402, CL403) and lift up the Deck Unit.
  • Page 16 [4] Tray (S-4) Chassis Unit (S-4) (S-4) (S-4) (S-4) CL604 (S-6) (S-6) [6] Top Cover (S-6) [2] Power Unit and Tray Chassis Unit (S-6) [ E,F,G,H,I ] [9] Text CBA [8] Deck Unit (S-10) (S-10) (S-9) TE Holder (S-10) (S-10) [10] Main CBA (S-3) (S-7)
  • Page 17 Anode Cap (S-11) CRT CBA (S-11) (S-11) (S-11) [11] CRT Fig. 4 1-5-4 T6700DC...
  • Page 18 CRT CBA ANODE CN501B FOCUS SCREEN CN501 CN502 H.V./POWER SUPPLY CBA CN552 CL501A CN551 CN602 CN601 TO DEGAUSS COIL MAIN CBA CL403 [ E,F,G,H,I ] TEXT CBA CL302A CL401 CL301A CL402 CN751 CN752 CN201 CN151 CL603A CAPSTAN TO SPEAKER MOTOR CL604 TO TOP COVER CYLINDER...

  • Page 19: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: "CBA" is abbreviation for "Circuit Board How to set up the option code Assembly." 1. Enter the Service mode. 2. Press the [STATUS] button on the remote control NOTE: unit. The option code appears on the display. Electrical adjustments are required after replacing 3.
  • Page 20 1. DC 114V (+B) Adjustment 2. H Adjustment Purpose: To obtain correct operation. Purpose: To get correct horizontal position and size of screen image. Symptom of Misadjustment: The picture is dark and unit does not operate correctly. Symptom of Misadjustment: Horizontal position and size of screen image may not be properly displayed.
  • Page 21 3. C-Trap Adjustment 4. SECAM Black Level Adjustment Purpose: To get minimum leakage of the color signal Purpose: To set Black Level of the SECAM signal R- carrier. Y/B-Y to Ref. level. Symptom of Misadjustment: If Black Level of the Symptom of Misadjustment: If C-Trap Adjustment is SECAM signal R-Y/B-Y is incorrect, the picture is blu- incorrect, stripes will appear on the screen.
  • Page 22 5. V. Size Adjustment 7. 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 23 7. Press the [PROG+/PROG-] buttons until the hori- 9. White Balance Adjustment zontal line becomes white. Purpose: To mix red, green and blue beams correctly 8. To enter the CUT OFF (G) mode, press [2] button for pure white. on the remote control unit. Symptom of Misadjustment: White becomes bluish 9.
  • Page 24 10. Sub-Brightness Adjustment 11. Setting for CONTRAST, COLOR, TINT and SHARP Purpose: To get proper brightness. Data Values Symptom of Misadjustment: If Sub-Brightness is incorrect, proper brightness cannot be obtained by General adjusting the Brightness Control. 1. Enter the Service mode. (See page 1-6-1) 2.
  • Page 25 12. Focus Adjustment 13. Head Switching Position Adjustment Purpose: Set the optimum Focus. Purpose: Determine the Head Switching Position dur- ing Playback. Symptom of Misadjustment: If Focus Adjustment is incorrect, blurred images are shown on the display. Symptom of Misadjustment: May cause Head Switching Noise or Vertical Jitter in the picture.

  • Page 26: Block Diagrams

    BLOCK DIAGRAMS Servo/System Control Block Diagram T6700BLS 1-7-1...
  • Page 27 Video Block Diagram T6700BLV 1-7-2...
  • Page 28 Audio Block Diagram T6700BLA 1-7-3...
  • Page 29 TV Block Diagram T6700BLT 1-7-4...
  • Page 30 CRT/H.V. Block Diagram T6700BLCRT 1-7-5...
  • Page 31 Power Supply Block Diagram T6700BLP 1-7-6...

  • Page 32: 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 33 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 34: 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 35 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 36 Main 1/5 Schematic Diagram Comparison Chart of Models and Marks MODEL MARK MODEL MARK TVCR-A2104 TVCR-B2104T TVCR-B2104 TVCR-C2104T TVCR-C2104 TVCR-D2104T TVCR-D2104 TVCR-A2104TG TVCR-A2104T 1-8-3 1-8-4 T6700SCM1...
  • Page 37 Main 2/5 Schematic Diagram 1-8-5 1-8-6 T6700SCM2...
  • Page 38 Comparison Chart of Models and Marks Main 3/5 Schematic Diagram MODEL MARK MODEL MARK TVCR-A2104 TVCR-B2104T TVCR-B2104 TVCR-C2104T TVCR-C2104 TVCR-D2104T TVCR-D2104 TVCR-A2104TG TVCR-A2104T 1-8-7 1-8-8 T6700SCM3...
  • Page 39 Main 4/5 Schematic Diagram Comparison Chart of Models and Marks MODEL MARK MODEL MARK TVCR-A2104 TVCR-B2104T TVCR-B2104 TVCR-C2104T TVCR-C2104 TVCR-D2104T TVCR-D2104 TVCR-A2104TG TVCR-A2104T 1-8-9 1-8-10 T6700SCM4...
  • Page 40 Comparison Chart of Models and Marks Main 5/5 Schematic Diagram MODEL MARK MODEL MARK TVCR-A2104 TVCR-B2104T TVCR-B2104 TVCR-C2104T TVCR-C2104 TVCR-D2104T TVCR-D2104 TVCR-A2104TG TVCR-A2104T 1-8-11 1-8-12 T6700SCM5...
  • Page 41 H.V./Power Supply 1/2 Schematic Diagram Comparison Chart of Models and Marks MODEL MARK MODEL MARK CAUTION ! TVCR-A2104 TVCR-B2104T CAUTION Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. TVCR-B2104 TVCR-C2104T FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, If Main Fuse (F601) is blown, check to see that all components in the power supply TVCR-C2104 TVCR-D2104T...
  • Page 42 H.V./Power Supply 2/2 Schematic Diagram 1-8-15 1-8-16 T6700SCP2...
  • Page 43 CRT Schematic Diagram 1-8-17 1-8-18 T6700SCCRT...
  • Page 44 Text Schematic Diagram ( E,F,G,H,I ) Comparison Chart of Models and Marks MODEL MARK MODEL MARK TVCR-A2104 TVCR-B2104T TVCR-B2104 TVCR-C2104T TVCR-C2104 TVCR-D2104T TVCR-D2104 TVCR-A2104TG TVCR-A2104T 1-8-20 T6700SCT 1-8-19...

  • Page 45: Waveforms

    WAVEFORMS 1-9-1 Z13PWF...

  • Page 46: Wiring Diagram

    WIRING DIAGRAM 1-10-1 T6700WI...

  • Page 47: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS Chart 1 EJECT ST-S "OFF" CASS.LOAD LD-FWD 0.2S LD-REV SFT-SW STOP(B) POWER LD-FWD 0.4S LD-FWD 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 STILL PAUSE NOISE CANCEL PAUSE...
  • Page 48 Chart 2 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 49: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS Comparison Chart of Models and Marks Signal Mark Function Name Model Mark Not Used TVCR-A2104 TVCR-B2104 Recording LED OUT REC-LED TVCR-C2104 Control Signal TVCR-D2104 Recording LED OUT REC-LED TVCR-A2104T Control Signal TVCR-B2104T Not Used TVCR-C2104T Not Used TVCR-D2104T TVCR-A2104TG Not Used...
  • Page 50 Signal Signal Mark Function Mark Function Name Name Switching Signal of Capstan Motor FWD/REV Control OUT SCART-H Scart Jack and OUT C-F/R Signal (FWD=”L”/ RCA Jack REV=”H”) OSD-GND OSD GND Not Used Not Used Take Up Reel T-REEL Not Used Rotation Signal Loading Motor Not Used...

  • Page 51: Lead Identifications

    LEAD IDENTIFICATIONS 2SC3619 2SD1913(R) 2SC5885000RF 2SK2647 KTC3503Y KTC2026Y TT2140LS-YB11 2SD2627LS-FEC-YB11 S: Souce E: Emitter D: Drain C: Collector B: Base G: Gate E C B S D G B C E B C E MID-32A22F PT204-6B-12 2SA1015-GR(TPE2) 2SA1346 2SA1175(F) LA78040A 2SC1815-GR(TPE2) 2SA950(Y,O) 2SC2120-O(TPE2)

  • Page 52: Exploded Views

    EXPLODED VIEWS Cabinet Comparison Chart of Models and Marks Model Mark See Electrical Parts List TVCR-A2104 for parts with this mark. TVCR-B2104 TVCR-C2104 Some Ref. Numbers are TVCR-D2104 not in sequence. TVCR-A2104T TVCR-B2104T CL604 TVCR-C2104T TVCR-D2104T TVCR-A2104TG DG601 CRT CBA Text CBA CLN551 Sensor CBA...
  • Page 53 Packing [ A,E ] X2-1 X2-2 X2-3 X2-4 X2-5 X2-6 X2-7 [ B,F ] [ C,G ] [ I ] X2-1 X2-2 X2-3 X2-4 X2-12 [ D,H ] X2-1 X2-3 X2-8 X2-9 X2-10 X2-11 Comparison Chart of Models and Marks Model Mark TVCR-A2104...

  • Page 54: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a ! Ref. No. Mark Description Part No. have special characteristics important to safety. Before CLN551 CRT WIRE WX1T7180-005 WX1T7180-005 replacing any of these components, read carefully the SCREW, P-TIGHT 4X18 BIND HEAD + GBMP4180 product safety notice in this service manual.
  • Page 55 Ref. No. Mark Description Part No. X2-8! OWNER'S MANUAL TVCR-D1404:RU 0EMN02425 X2-9! OWNER'S MANUAL TVCR-D1404:PL 0EMN02426 X2-10! OWNER'S MANUAL TVCR-D1404:HU 0EMN02427 X2-11! OWNER'S MANUAL TVCR-D1404:CZ 0EMN02428 X2-12! OWNER'S MANUAL TVCR-A1404TG:GR 0EMN02388 A,B,C, REMOTE CONTROL 512/ERC001/ NE136RD NE136RD E,F,G, REMOTE CONTROL 512/ERC001/ NE135RD NE135RD DRY BATTERY R6P UM3 or...

  • Page 56: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a ! Ref. No. Mark Description Part No. have special characteristics important to safety. Before C008 ELECTROLYTIC CAP . 1µF/50V M or CE1JMASDL010 replacing any of these components, read carefully the ELECTROLYTIC CAP .
  • Page 57 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. ELECTROLYTIC CAP . 22µF/50V M CE1JMASTL220 ELECTROLYTIC CAP . 1µF/50V M or CE1JMASDL1R0 C242 CHIP CERAMIC CAP .(MELF) F Z 0.01µF/ CZM1CZB0F103 ELECTROLYTIC CAP . 1µF/50V M CE1JMASTL1R0 C327 CHIP CERAMIC CAP .
  • Page 58 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP CERAMIC CAP . F Z 0.1µF/25V CHD1EZB0F104 C707 ELECTROLYTIC CAP . 0.22µF/50V M or CE1JMASDLR22 C430 ELECTROLYTIC CAP . 47µF/25V M or CE1EMASDL470 ELECTROLYTIC CAP . 0.22µF/50V M CE1JMASTLR22 ELECTROLYTIC CAP .
  • Page 59 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. D151! ZENER DIODE MTZJT-777.5B or QDTB0MTZJ7R5 SWITCHING DIODE 1N4148 NDTZ001N4148 ZENER DIODE DZ-7.5BSBT265 NDTB0DZ7R5BS D716 ZENER DIODE MTZJT-775.6B or QDTB0MTZJ5R6 D152! SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 ZENER DIODE DZ-5.6BSBT265 NDTB0DZ5R6BS SWITCHING DIODE 1N4148 NDTZ001N4148...
  • Page 60 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815 Q708 TRANSISTOR 2SC2785(F) or QQSF02SC2785 Q205 PHOTO TRANSISTOR MID-32A22F or NPWZ1D32A22F TRANSISTOR 2SC2785(H) or QQSH02SC2785 PHOTO TRANSISTOR PT204-6B-12 NPWZT2046B12 TRANSISTOR 2SC2785(J) or QQSJ02SC2785 Q206 RES. BUILT-IN TRANSISTOR KRA103M NQSZ0KRA103M TRANSISTOR KTC3199(GR) or NQS10KTC3199...
  • Page 61 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CARBON RES. 1/4W J 1k Ω R205 RCX4JATZ0102 R266 PCB JUMPER D0.6-P5.0 JW5.0T CHIP RES.(1608) 1/10W J 390k Ω CHIP RES.(1608) 1/10W J 10k Ω R206 RRXAJB5Z0394 R267 RRXAJB5Z0103 CHIP RES.(1608) 1/10W J 10k Ω...
  • Page 62 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W J 4.7k Ω CHIP RES.(1608) 1/10W J 2.2k Ω R412 RRXAJB5Z0472 R748 RRXAJB5Z0222 CHIP RES.(1608) 1/10W J 2.2k Ω CHIP RES.(1608) 1/10W J 10k Ω R413 RRXAJB5Z0222 R749...
  • Page 63 JUNCTION C CBA Ref. No. Mark Description Part No. MISCELLANEOUS Ref. No. Mark Description Part No. CL301A LEAD WIRE 4P/450 WX1T6500-104 JUNCTION C CBA ---------- CL302A LEAD WIRE 7P/280 WX1T6700-102 Consists of the following CL603A LEAD WIRE 12P/190 WX1T6450-102 CONNECTOR CL604 WIRE ASSEMBLY 1P/45 WX1T6400-001...
  • Page 64 POWER CBA Ref. No. Mark Description Part No. C613 FILM CAP .(P) 0.039µF/50V J or CMA1JJS00393 Ref. No. Mark Description Part No. FILM CAP .(P) 0.039µF/50V J CA1J393MS029 A,C,D, POWER CBA 0ESA06024 C614 FILM CAP .(P) 0.001µF/50V J or CMA1JJS00102 E,G,H FILM CAP .(P) 0.001µF/50V J CA1J102MS029...
  • Page 65 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. RECTIFIER DIODE ERA22-02 QDPZ0ERA2202 SWITCHING DIODE 1N4148 NDTZ001N4148 D560! ZENER DIODE MTZJT-7736B or QDTB00MTZJ36 D641 ZENER DIODE MTZJT-7715B or QDTB00MTZJ15 ZENER DIODE DZ-36BSBT265 NDTB00DZ36BS ZENER DIODE DZ-15BSBT265 NDTB00DZ15BS D562 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133...
  • Page 66 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. R554! PCB JUMPER D0.6-P5.0 JW5.0T R627 PCB JUMPER D0.6-P5.0 JW5.0T CARBON RES. 1/4W J 4.7 Ω CARBON RES. 1/4W J 820 Ω R555 RCX4JATZ04R7 R628! RCX4JATZ0821 CARBON RES. 1/4W J 4.7 Ω CARBON RES.
  • Page 67 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. SCREW, B-TIGHT M3X8 BIND HEAD+ GBMB3080 R513 PCB JUMPER D0.6-P5.0 JW5.0T CARBON RES. 1/4W J 1.5k Ω PS602! THERMISTOR ZPB31BL9R0A QNWZ31BL9R0A R514 RCX4JATZ0152 CARBON RES. 1/4W J 120k Ω SA601! SURGE ABSORBER 470V+-10PER NVQZ10D471KB...
  • Page 68 Ref. No. Mark Description Part No. D908 E,F,G,H,I ZENER DIODE DZ-3.3BSBT265 NDTB0DZ3R3BS D909 E,F,G,H,I ZENER DIODE DZ-3.3BSBT265 NDTB0DZ3R3BS IC901 E,F,G,H,I IC:TEXT SAA5265 NSZBA0SPH017 COILS L901 E,F,G,H,I INDUCTOR 10µH-J-26T or LLAXJATTU100 E,F,G,H,I INDUCTOR 10µH-K-26T LLAXKDTKA100 L902 E,F,G,H,I INDUCTOR 10µH-J-26T or LLAXJATTU100 E,F,G,H,I INDUCTOR 10µH-K-26T LLAXKDTKA100 TRANSISTORS...
  • Page 69 DECK MECHANISM SECTION 21" COLOR TV/VCR COMBINATION TVCR-A2104/TVCR-B2104/ TVCR-C2104/TVCR-D2104/ TVCR-A2104T/TVCR-B2104T/ TVCR-C2104T/TVCR-D2104T/ TVCR-A2104TG Sec. 2: Deck Mechanism Section I Standard Maintenance I Mechanism Alignment Procedures I Disassembly / Assembly of Mechanism I Deck Exploded Views I Deck Parts List TABLE OF CONTENTS Standard Maintenance .

  • Page 70: 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 Assembly B587 ACE Head Assembly B573, B574 Reel (SP)(D2), Reel (TU)(D2) Capstan Motor...
  • Page 71 Cleaning Cleaning of ACE 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 ACE Head.

  • Page 72: Service Fixture And Tools

    SERVICE FIXTURE AND TOOLS J-1-1, J-1-2 Ref. No. Name Part No. Adjustment J-1-1 Alignment Tape FL6A Head Adjustment of ACE Head J-1-2 Alignment Tape FL6N8 Azimuth and X Value Adjustment of ACE Head / (2 Head model) Adjustment of Envelope Waveform FL6NS8 (4 Head model) Guide Roller Adj.

  • Page 73: 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 74 1. Tape Interchangeability Alignment Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the preset 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 (FL6N8) Guide Roller Adj.
  • Page 75 1-A. Preliminary/Final Checking and 4. If creasing or snaking is apparent, adjust the Tilt Alignment of Tape Path Adj. Screw of the ACE Head. (Fig. M6) Purpose: To make sure that the tape path is well stabilized. Azimuth Adj. Screw Symptom of Misalignment: If the tape path is unstable, the tape will be damaged.
  • Page 76 5. To shift the CTL waveform, press CH UP or CH 5. When Guide Rollers [2] and [3] (Refer to Fig. M3) DOWN button on the remote control unit. Then are aligned properly, there is no envelope drop make sure that the maximum output position of PB either at the beginning or end of track as shown in ±...
  • Page 77 1-D. Azimuth Alignment of Audio/Con- trol/ Erase Head Purpose: To correct the Azimuth alignment so that the Audio/ Control/Erase Head meets tape tracks properly. Symptom of Misalignment: If the position of the Audio/Control/Erase Head is not properly aligned, the Audio S/N Ratio or Frequency Response will be poor.

  • Page 78: 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 1-5-1 of Main Section.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 79 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER Loading Arm (SP) (+)Refer to Alignment [32] [25] DM2, DM14 Assembly Sec.Page 2-5-1 Loading Arm (TU) (+)Refer to Alignment [32] [33] DM2, DM14 Assembly Sec.Page 2-5-1 [34] [2],[25] M Brake (TU) Assembly DM1, DM15 *(P-7), Brake Belt...
  • Page 80 Top View [41] [42] [43] [46] [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 Z13PDA...
  • Page 81 (S-1) (S-1) (L-1) (L-3) (L-2) (S-1A) (P-1) Installation of [3] and [6] First, insert [6] diagonally in [3] as shown below. Then, install [6] in [3] while pushing (L-1) in a direction of arrow. After installing [6] in [3], confirm that pin A of [3] enters hole A of [6] properly.
  • Page 82 [11] (S-4A) (L-4) [46] (P-3) [13] [47] Removal of [11] [12] (L-14) 1) Remove screw (S-4A). 2) Unhook spring (P-2). [10] Release (L-4) while (P-2) holding [12] with a finger. Loosen a finger holding [12] and remove [11]. (S-2) Pin of [12] Pin of [10] Groove of [28] When reassembling [10] and...
  • Page 83 Installation of [13] and [12] (S-5) [14] (S-6) [16] [13] [15] Hook spring (P-3) up to [12] and [13], then install then to (P-3) the specified position so that [12] will be floated slightly while holding [12] and [13]. (Refer to Fig. A.) [12] Fig.
  • Page 84 [22] (S-8) (C-2) (C-1) [23] (L-6) [21] (P-5) [20] Cap Belt (P-5) [28] Installation position of Cap Belt [21] Cap Belt 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...
  • Page 85 (P-6) [25] (C-4) [31] Refer to the Alignment Section, Page 2-5-1. (S-9) [29] [33] [30] (L-11) (L-10) [32] (L-8) (C-3) [27] [28] [24] [26] (L-9) Fig. DM14 Fig. DM13-1 [36] Break belt Installation of [25] (P-7) [34] Position of Mode Lever when installed [40] Pin of [35] Pin of [31]...
  • Page 86 [42] [41] [43] (L-13) Fig. DM16 (P-9) [44] [45] Slide Fig. DM17 2-4-9 Z13PDA...

  • Page 87: 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 88: Deck Exploded Views

    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 89 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 L1406 B148 B499 B508 B592 B573 B574 B558 B564 B557 B414 B565 B525 L1151 B417...
  • Page 90 Deck Mechanism View 3 Mark Description Floil G-684G or Multemp MH-D (Blue grease) L1321 SLIDUS OIL #150 B347 L1321 B355 B354 B483 L1341 B425 B482 B562 B300 B563 B313 L1474 B529 B360 B359 B361 B555 B561 B303 Some Ref. Numbers are not in sequence. B514 2-6-3 Z13P2HDEX...

  • Page 91: Deck Parts List

    DECK PARTS LIST NOTE: Ref. No. Description Part No. Five different, but interchangeable, types of B558 B133 IDLER GEAR MK12 0VM305738 (LOADING MOTOR) may be installed in these models. B134 IDLER ARM MK12 0VM305739 Please confirm B558 (LOADING MOTOR) type by a B148 TG CAP MK11 0VM412972...
  • Page 92 Ref. No. Description Part No. B568 BT ARM MK12 0VM305728 B569 CAM HOLDER(F) MK12 0VM305722 B570 CAM RACK SPRING(HI) MK11 0VM412923 B571 P .S.W CUT 1.6X4.0X0.5T 0VM408485A B573 REEL(SP)(D2) MK12 0VM203755 B574 REEL(TU)(D2) MK12 0VM203756 B587 TENSION LEVER ASSEMBLY MK12 0VSA13279 B590 BRAKE ARM(TU) MK12...
  • Page 93 TVCR-A2104/B2104/C2104/D2104/A2104T/B2104T/C2104T/D2104T/A2104TG T6700EA/T6701BB/T6702FC/T6703RD/T6720EA/T6721BB/T6722FC/T6723RD/T6724EE 2004-03-09...

This manual is also suitable for:

Tvcr-a2104Tvcr-b2104Tvcr-c2104Tvcr-d2104Tvcr-a2104tTvcr-b2104t ... Show all

Table of Contents