Funai video cassette player owner's manual (18 pages)
Summary of Contents for FUNAI 25A-664
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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 Alignment Procedures of Mechanism I Schematic Diagrams I CBA’s VIDEO CASSETTE RECORDER 25A-664...
MAIN SECTION VIDEO CASSETTE RECORDER 25A-664 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.
SPECIFICATIONS Description Unit Minimum Nominal Maximum Remark 1. Video 1-1. Video Output (PB) Vp-p FL6A 1-2. Video Output (R/P) Vp-p SP Mode, 1-3. Video S/N Y (R/P) W/O Burst 1-4. Video Color S/N AM (R/P) SP Mode 1-5. Video Color S/N PM (R/P) SP Mode 1-6.
IMPORTANT SAFETY PRECAUTIONS Product Safety Notice I. Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder Some electrical and mechanical parts have special droplets, etc.) do not remain inside the set. safety-related characteristics which are often not evi- K.
Safety Check after Servicing Chassis or Secondary Conductor Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original posi- Primary Circuit Terminals tions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards.
STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC a. The output pin of the 3 pin Regulator ICs is indi- 1. Removal cated as shown. With Hot-Air Flat Pack-IC Desoldering Machine:. (1) Prepare the hot-air flat pack-IC desoldering Top View Bottom View machine, then apply hot air to the Flat Pack-IC...
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With Soldering Iron: (4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply (1) Using desoldering braid, remove the solder from all soldering iron to center of the flat pack-IC and heat pins of the flat pack-IC.
2. Installation Instructions for Handling Semi-conductors (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA Electrostatic breakdown of the semi-conductors may so you can install a replacement flat pack-IC more occur due to a potential difference caused by electro- easily.
PREPARATION FOR SERVICING How to Enter the Service Mode About REC-Safety Switch Caution: The REC-Safety Switch is directly mounted on the About Optical Sensors Main CBA. When the Deck Mechanism Assembly is Caution: removed from the Main CBA for servicing, this switch does not work automatically.
CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart (1): Identification (location) No. of parts in the figures (2): Name of the part This flowchart indicates the disassembly steps to gain (3): Figure Number for reference access to item(s) to be serviced. When reassembling, (4): Identification of parts to be removed, unhooked, follow the steps in reverse order.
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(S-1) (S-1) (S-4) (S-3) (S-3) (S-5) [3]VCR (S-4) Chassis Unit (S-3) [1] Top Case (S-1) Fig. 1 (L-2) (L-3) (L-2) Fig. 3 [4] Jack CBA (S-6) [2] Front Desolder Assembly (L-1) Fig. 2 Fig. 4 1-5-2 HC2C0DC...
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FE Head Cylinder Assembly AC Head Assembly SW507 LD-SW [7] Main CBA [6] Deck Assembly [6] Deck Assembly [7] Main CBA Cam Gear (S-7) Hole Shaft Hole [5] Function LD-SW (S-7) [7] Main CBA Desolder from bottom Fig. 6 From From From Capstan Motor...
ELECTRICAL ADJUSTMENT INSTRUCTIONS Head Switching Position Adjustment General Note: "CBA" is an abbreviation for "Circuit Board Assembly." Purpose: NOTE: To determine the Head Switching point during 1.Electrical adjustments are required after replacing playback. circuit components and certain mechanical parts. Symptom of Misadjustment: It is important to do these adjustments only after all repairs and replacements have been com- May cause Head Switching noise or vertical jitter...
Video Block Diagram REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC VPS CBA IC640 (VPS) MAIN CBA DAVN-L DAVN-L DAVN-L IC501 (OSD) IIC BUS SDA TO SERVO/SYSTEM IIC BUS SDA IIC BUS-SDA CONTROL BLOCK IIC BUS SCL IIC BUS-SCL IIC BUS SCL OSD-V-IN VPS-V CHARACTER...
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Power Supply Block Diagram NOTE : CAUTION CAUTION ! Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit. The voltage for parts in hot circuit is measured using FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, If Main Fuse (F001) is blown, check to see that all components in the power supply hot GND as a common terminal.
FUNCTION INDICATOR SYMBOLS Note: The following symbols will appear on the indicator panel to indicate the current mode or operation of the VCR. On-screen modes will also be momentarily displayed on the tv screen when you press the operation buttons. Display panel "...
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes Notes: WARNING 1. Do not use the part number shown on these draw- ings for ordering. The correct part number is shown Many electrical and mechanical parts in this chassis in the parts list, and may be slightly different or have special characteristics.
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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 (F001) 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.
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Main 1/5 Schematic Diagram 1-8-3 1-8-4 1-8-5 HC4S4SCM1...
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Main 2/5 Schematic Diagram 1-8-6 1-8-7 1-8-8 HC4S4SCM2...
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Main 3/5 Schematic Diagram 1-8-9 1-8-10 1-8-11 HC4S4SCM3...
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Main 4/5 Schematic Diagram NOTE : CAUTION CAUTION ! THE VOLTAGE FOR PARTS IN HOT CIRCUIT IS MEASURED USING FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit. HOT GND AS A COMMON TERMINAL.
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Main 5/5 Schematic Diagram HC4S4SCM5 1-8-15 1-8-16...
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Jack CBA Top View Jack CBA Bottom View BHC400F01018-E 1-8-29 1-8-30...
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Main CBA Top View BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage power supply circuit is used in this unit. ALSO , IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT CAUTION If Main Fuse (F001) is blown, check to see that all components in the power supply NOTE :...
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Main CBA Bottom View BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage power supply circuit is used in this unit. ALSO , IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT CAUTION If Main Fuse (F001) is blown, check to see that all components in the power supply NOTE :...
WAVEFORMS (TP751 of Main CBA) V-OUT E-E 10usec 50mV x 10 (TP751 of Main CBA) UPPER (TP302 of Main CBA) LOWER V-OUT 0.1V x 10 RF-SW 0.5V x 10 50usec (TP301 of Main CBA) UPPER (TP302 of Main CBA) LOWER C-PB 10mV x 10 RF-SW...
WIRING DIAGRAM NOTE FOR WIRE CONNECTORS: 1. PREFIX SYMBOL "CN" MEANS CONNECTOR. AC CORD (CAN DISCONNECT AND RECONNECT.) FRONT REAR 2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER VIDEO AUDIO AUDIO AUDIO AUDIO HOLES OF THE PCB. (WIRE IS SOLDERED DIRECTLY.) IN (R) IN (L) OUT (R) OUT (L)
IC PIN FUNCTION DESCRIPTIONS IC501( SERVO / SYSTEM CONTROL IC ) Signal Active Function Name Level “H” ≥ 4.5V, “L” ≤ 1.0V N.U. Not Used Signal Active Function Name Level N.U. Not Used Input Signal from N.U. Not Used SC2-IN L/Hi-z Pin 8 of SCART2 N.U.
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Signal Active Signal Active Function Function Name Level Name Level N.U. Not Used CTL Amp Gain 84 OUT FF/REW- Switching Signal (FF/ Composite REW=”L”) PULSE C-SYNC Synchronized Pulse N.U. Not Used 59 OUT 8POUT-1 SCART 1 8Pin Output Control Signal P-DOWN- Power Voltage Down Detector Signal...
LEAD IDENTIFICATIONS 2SC1815-Y(TPE2) PT-6958-FN-TP BN1F4M-T 2SC1815-GR(TPE2) BA1F4M-T 2SC3266-Y (TPE2) KTA1266(GR) 2SC2120-Y(TPE2) KTC3199(Y,GR,BL) KTC3203(Y) 2SC2785(J.H.F.K) 2SC1815-BL(TPE2) KRA103M 2SA1020(Y) KRC103M 2SB892(S) KRA104M KTC3205(Y) 2SD1246(S,T) 2SA1015-GR(TPE2) BN1L4M-T KTA1281(Y) LA71750AM-MTB E C B E C B QSZAA0RMB121 BR24C04F-W AT24C04N-10SC LTV-817(B.C)-F M24C04-MN6 EL817(A,B,C) CAT24WC02JI MSP3417G-QG-B8-V3 LA72646SM-A-MPB MSP3417G-QG-B8 LC74793JM-TRM...
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DECK MECHANISM SECTION VIDEO CASSETTE RECORDER 25A-664 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 .
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...
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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.
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 Audio Control Head J-1-2 Alignment Tape FL6N8 Azimuth and X Value Adjustment of Audio Control (1 speed only) Head / Adjustment of Envelope Waveform FL6NS8 (2 speed only) Guide Roller Adj.Screwdriver...
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.
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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 (FL6N8) Guide Roller Adj.
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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.
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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.
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.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
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REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER Loading Arm S(B) (+)Refer to Alignment [35] [25] DM2,DM15 Assembly Sec.Pg.2-4-9 Loading Arm T(B) (+)Refer to Alignment [36] [35] DM2,DM15 Assembly Sec.Pg.2-4-9 [2],[25] M Brake T(HI) Assembly DM1,DM16 *(P-6) [37] [38]...
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(S-1) (S-1) (S-2) (P-1) (S-4) (S-3) Fig. DM5 Fig. DM3 [50] Type A Pin D Pin C Type B [51] [50] (L-9) Pull up Slide Pin A (L-8) Pin B Slot A Slots B (S-5) 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.
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(S-7) (S-9) [14] (S-10) [15] Desolder from bottom (S-6) Lead with White Stripe Belt View for A Fig. DM7 Fig. DM9 (L-2) Adj. Screw [17] After removing the Screw (S-11), [11] while pressing the Locking Tab (L-3) (L-1) (L-3), remove [16]. (P-3) [16] [13]...
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(C-1) Cap Belt [20] [19] [21] Fig. DM12 (S-12) Fig. DM11 2-4-6 U25PALDA...
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[25] (C-5) (C-2) (C-3) [22] [23] (S-15) [26] (L-4) (P-4) [27] (C-6) [29] (C-4) [28] [30] [24] [31] (P-4) [28] [32] When installing [23], install the spring (P-4) to [28] as Position of Mode Lever when installed shown in the left figure, and Pin of [38] then install [23] while Pin on...
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.
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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...
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EXPLODED VIEWS AND PARTS LIST SECTION VIDEO CASSETTE RECORDER 25A-664 Sec. 3: Exploded views and Parts List Section I Exploded views I Parts List TABLE OF CONTENTS Exploded Views ............... . 3-1-1 Mechanical Parts List.
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Deck Mechanism View 2 Mark Description B587 Note: Both TENSION Floil G-374G (Blue grease) LEVER ASSEMBLY MK11(B27) and the TENSION SANKOUL FG84M (Yellow grease) LEVER ASSEMBLY MK11 (B587) can be used. B574 B508 B148 B487 B573 L1406 B522 B518 B520 B521 B564 B499...
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Deck Mechanism View 3 Mark Description Floil G-374G (Blue grease) 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.) Table 1 (B359 and B361 Combination) B359 CLEANER LEVER...
MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. have special characteristics important to safety. X20B! OWNER'S MANUAL(DUTCH) HC4S4ED 0VMN03281 Before replacing any of these components, read care- X20C! OWNER'S MANUAL(FRENCH) HC4S4ED 0VMN03282 fully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing.
ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. have special characteristics important to safety. ELECTROLYTIC CAP. 470µF/10V M CE1AMASTL471 Before replacing any of these components, read care- C025 CERAMIC CAP.(AX) X K 5600pF/16V CCA1CKT0X562 fully the product safety notice in this service manual.
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Ref. No. Description Part No. Ref. No. Description Part No. C313 CHIP CERAMIC CAP. F Z 0.1µF/50V or CHD1JZB0F104 CHIP CERAMIC CAP. CG J 68pF/50V or CHD1JJBCG680 CHIP CERAMIC CAP. F Z 0.1µF/25V or CHD1EZB0F104 CHIP CERAMIC CAP. CH J 68pF/50V or CHD1JJ3CH680 CHIP CERAMIC CAP.
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Ref. No. Description Part No. Ref. No. Description Part No. CHIP CERAMIC CAP. CH J 820pF/50V or CHD1JJ3CH821 CHIP CERAMIC CAP. B K 4700pF/50V CHD1JK30B472 CHIP CERAMIC CAP. CH J 820pF/25V or CHD1EJ3CH821 C463 CHIP CERAMIC CAP. B K 0.01µF/50V or CHD1JKB0B103 CHIP CERAMIC CAP.
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Ref. No. Description Part No. Ref. No. Description Part No. CHIP CERAMIC CAP. CH J 680pF/25V or CHD1EJBCH681 CHIP CERAMIC CAP. CH J 330pF/50V or CHD1JJ3CH331 CHIP CERAMIC CAP. CG J 680pF/50V or CHD1JJBCG681 CHIP CERAMIC CAP. CG J 330pF/50V CHD1JJ3CG331 CHIP CERAMIC CAP.
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Ref. No. Description Part No. Ref. No. Description Part No. C853 CHIP CERAMIC CAP. B K 4700pF/50V or CHD1JKB0B472 ZENER DIODE MTZJT-7711B QDTB00MTZJ11 CHIP CERAMIC CAP. B K 4700pF/50V CHD1JK30B472 D155 ZENER DIODE DZ-11BSAT265 or NDTA00DZ11BS C854 CHIP CERAMIC CAP. B K 0.01µF/50V or CHD1JKB0B103 ZENER DIODE MTZJT-7711A or QDTA00MTZJ11...
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Ref. No. Description Part No. Ref. No. Description Part No. L562 PCB JUMPER D0.6-P5.0 JW5.0T RES. BUILT-IN TRANSISTOR BN1F4M-T QQSZ00BN1F4M L701 INDUCTOR 10µH-K-26T LLAXKATTU100 Q404 TRANSISTOR KTC3199(Y) or NQSY0KTC3199 L702 CHOKE COIL 47µH-K or LLBD00PKV007 TRANSISTOR KTC3199(GR) or NQS10KTC3199 CHOKE COIL 47µH-K LLBD00PKV005 TRANSISTOR 2SC2785(J) or QQSJ02SC2785...
DECK PARTS LIST Notes: Ref. No. Description Part No. 1. There are two different, but interchangeable types of CAP BELT MK10 0VM411138 CLEANER LEVER(B359) in this model, and have FE HEAD ASSEMBLY MK11 or N9742FEL different combination with B361. Please see Table 1 FE HEAD(MK11) MH-131SF11 or DHVEC01Z0005 for details and combination.
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Ref. No. Description Part No. B559 CLUTCH ASSEMBLY(HI)(2) MK11 0VSA12367 B560 KICK SPRING MK10 0VM411475A B562 C DRIVE LEVER L MK10 0VM304408 B563 SLIDER SHAFT MK10 0VM411112 B564 M GEAR(HYT) N12G5F* 0VM412378 B565 SENSOR GEAR MK11 0VM305080 B567 PINCH ARM(B) MK10 0VM304396 B568 BT ARM MK10...