VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U SERVICE MANUAL S41R7VC-A411U SERVICE MANUAL VIDEO CASSETTE RECORDER VC-A410U(B)/VC-H810U(B) VC-A411U/VC-H811U VIDEO CASSETTE RECORDER MODELS VC-A410U(B) VC-H810U(B) VC-A411U/H811U VC-A420U/H820U VC-A420U In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified be used.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U IMPORTANT SERVICE NOTES etc.) and measure the AC voltage drop across the resistor. Reverse the AC plug on the set and repeat AC voltage measurements for each exposed part. Any reading of 0.45V rms (this corresponds to 0.3mA rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the video cassette recorder to the owner.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U NOTES DE SERVICE IMPORTANTES pièces métalliques exposées ayant un parcours de retour au châssis (connexions d’antenne, coffret métallique, tétes de vis, boutons et arbres de commande, etc.) et mesurer la chute de tension CA entre la résistance. Inverser la fiche CA (une fiche intermédiaire non polarisée doit être utilisée à seule fin de faire ces vérifications.) sur l’appareil et répéter les mesures de tension CA pour chaque piéce métallique exposée.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U PRECAUTIONS IN PART REPLACEMENT When servicing the unit with power on, be careful to the section marked white all over. This is the primary power circuit which is live. When checking the soldering side in the tape travel mode, make sure first that the tape has been loaded and then turn over the PWB with due care to the primary power circuit.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 1.
(VC-H820U) 6 3 2 1 Basic function controls (see Playback/Recording) 2 1 Point Remote Control at this window. Remote Sensor 6 VCR LED indicator This indicator lights up when selecting "VCR" by using the TV/VCR button. This indicator lights up when the set mode is locked. ) LED indicator TAMPER PROOF ( REC LED indicator 6 REMOTE SENSOR This indicator lights up when the VCR is set for timer recording, Simple Recording Timer and Recording with the Timer.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 2. DISASSEMBLY AND REASSEMBLY 2-1 DISASSEMBLY OF MAJOR BLOCKS TOP CABINET FRONT PANEL OPERATION PWB SHIELD ANGLE MECHANISM/ MAIN PWB : Remove 2 screws 1. : Remove 2 screws 2 and 7 clips 3. : Remove 1 screw 4. TOP CABINET 1 : Remove 1 screw 5 with shield angle. : Remove 1 screw 6, 2 screws 7. Remove 1 screw 8 with antenna terminal cover. Remove 1 screw 9 with top cabinet fix angle.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 2-2 DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY 2. Removing the mechanism and cassette housing. Remove 2 screws 4 fixing the cassette housing to the mechanism, and remove the cassette housing. 1. When removing the mechanism from the main PWB, remove the antenna cover 1 screw 1, and remove the antenna terminal cover. Remove the PWB bottom plate 1 screw 2. Remove the FFC cable (AA, AD, AH) 3 which connecting the PWB and the mechanism.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 2-3 CARES WHEN REASSEMBLING cassette housing. (Conditions: When mechanism and PWB have been installed) INSTALLING THE CASSETTE HOUSING When the cassette housing is installed on the mechanism, the initial setting is essential condition. There are two initial setting methods, namely electrical and mechanical. 1. Electrical initial setting So as to perform initial setting of mechanism execute the Step 1 of Installation of cassette housing.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 3. FUNCTION OF MAJOR MECHANICAL PARTS (TOP VIEW) 15 17 10 18 14 1 9 2 11 7 5 3 12 8 6 No. 4 Function 16 13 No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U FUNCTION OF MAJOR MECHANICAL PARTS (BOTTOM VIEW) 21 22 19 25 20 12 23 No. 24 Function No. Function 15 Drum ass’y 22 Reel belt 16 Loading motor 23 Clutch lever 17 Drum drive motor 24 Limiter pulley ass’y 18 Take-up pole base ass’y 25 Shifter 19 Slow brake lever 20 Master cam 21 Capstan D.D.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS The explanation given below relates to the on-site general service (field service) but it does not relates to the adjustment and replacement which need high-grade equipment, jigs and skill. For example, the drum assembling, replacement and adjustment service must be performed by the person who have finished the technical courses.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-2 MAINTENANCE CHECK ITEMS AND EXECUTION TIME Perform the maintenance with the regular intervals as follows so as to maintain the quality of machine. Maintained 500 1000 1500 2000 Possible symptom Remarks encountered hrs. hrs. hrs. hrs. Parts Abnormal rotation or significant Guide roller ass’y vibration requires replacement. Sup guide shaft Reverse guide Lateral noises Head occasionally blocked Clean tape contact part with the specified cleaning liquid.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-3 REMOVING AND INSTALLING THE CASSETTE HOUSING Notes: 1. When fitting the S/E sensor holder to the cassette controller frame L/R, take care. 2. Misengagement of teeth of casecon drive gear and drive angle gear causes malfunction. (The cassette cannot be set, load and ejection are repeated). 3. In the case when you use the magnet screw driver, never approach the magnet driver to the A/C head, FE head, and drum. 4.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-5 REEL DISK REPLACEMENT AND HEIGHT CHECK Notes: 1. When installing the reel disk, take due care so that the tension band ass'y is not deformed and grease does no adhere. 2. Do not damage the Supply main brake ass'y. Be careful so that grease does not adhere to the brake surface. • 1. 2. 3. 4. Removal Remove the cassette housing control assembly. Pull the tension band out of the tension arm ass'y. Remove the Supply/Take-up main brake ass'y.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Note: Whenever replacing the reel disk, perform the height checking and adjustment. Reel disk height adjusting jig Master plane 10 ± 0.2mm Notes: 1. Hold the torque gauge by hand so that it is not moved. 2. Do not keep the reel disk in lock state. Do not allow longtime measurement. 4-7 CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN REWIND MODE Mechanism chassis Reel disk • Remove the cassette housing control assembly.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Notes: 1. Hold the torque gauge by hand so that it is not moved. 2. Do not keep the reel disk in lock state. Do not allow longtime measurement. 4-9 CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN VIDEO SEARCH REWIND MODE 4-8 CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN RECORD/PLAYBACK MODE • After short-circuiting between TP803 and TP802 provided at operation PWB, plug in the power cord. • Remove the cassette housing control assembly.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-10 CHECKING THE VIDEO SEARCH REWIND BACK TENSION • Remove the cassette housing control assembly. • After short-circuiting between TP803 and TP802 provided at operation PWB, plug in the power cord. Tension gauge 900 - 1,200gf Pinch roller • Checking 1. After pressing the play button, press the rewind button, and set the video search rewind mode. 2.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 2. Visually check to see if the right edge of the tension pole is within the 2.3 ± 0.25 from the right edge of the Sup guide shaft. Tension pole adjuster adjusting range Tension pole adjuster 90° Sup guide shaft Tension pole 90° 2.3 ± 0.25 Make the adjustment with the beginning of a T-120 tape. Figure 4-18. Figure 4-15. Adjust so that the delta mark of tension pole adjuster is within 90° range (left, right).
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U • Adjustment 1. If the indication of torque cassette meter is lower than the setting, shift the tension spring engagement to the part A. 2. If the indication of torque cassette meter is higher than the setting, shift the tension spring engagement to the part B. A • Checking the brake torque at the take-up side Torque gauge Tension arm B CW CCW Take-up reel disk Tension spring Figure 4-20. CCW: 4.9~13.7mN⋅m (50~140gf⋅cm) CW: 3.9~10.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 3. Align the left end of gear of A/C head arm with the punched mark of chassis, tentatively tighten the screws 1 and 2 so as to ensure smooth motion of A/C head arm. Tentative tightening torque must be 0.15 to 0.20 N·m (1.5 to 2.0kgf·cm). 4-15 REPLACEMENT OF A/C (AUDIO/CONTROL) HEAD 1. Remove the cassette housing control assembly. 2. In unloading state unplug the power cord. • Removal 1. Remove the screws 123, Azimuth screw, Tilt screw. 2.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-16 A/C HEAD HEIGHT ROUGH ADJUSTMENT 4-17 HEIGHT ADJUSTMENT OF REVERSE GUIDE • Setting Azimuth screw 1. Adjust the height from the mechanism chassis to the reverse guide lower flange to 13.38 mm, using the reverse guide height adjustment jig, in tape loading state. (Refer to Figure 4-28 (a) (b).) Reverse guide Reverse guide height adjusting jig Height screw Reverse guide height adjusting jig Tilt screw Cassette tape Mechanism chassis 13.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-18 ADJUSTMENT OF TAPE DRIVE TRAIN 1. Tape run rough adjustment 1 Remove the cassette housing control assembly. 2 After shortcircuiting between TP803 and TP802 provided at operation PWB, plug in the power cord. 3 Check and adjust the position of the tension pole. (See 4-12.) 4 Check and adjust the video search rewind back tension. (See 4-10.) 5 Connect the oscilloscope to the test point for PB ATR signal output (TP201).
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 3 Next, press the tracking button (+), (–) and change the ATR signal waveform from max to min and from min to max. At this time adjust the height of supply and take-up side guide roller with the adjustment driver (JiGDRiVERH-4) so that the ATR signal waveform changes nearly parallel. 4 If the tape is lifted or sunk from the helical lead surface, the PB ATR signal waveform appears as shown in Figure 4-35.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-20 REPLACEMENT OF DRUM D.D. MOTOR 4-19 REPLACEMENT OF THE CAPSTAN D.D. (DIRECT DRIVE) MOTOR 1. Set the ejection mode. 2. Withdraw the main power plug from the socket. • Remove the mechanism from the main PWB (refer to 22 item 1 When removing the mechanism from the main PWB ). • 1. 2. 3. 4. 5. • Removal (Follow the order of indicated numbers.) 1. Remove the reel belt 1. 2. Remove the slow brake lever 2. 3. Remove the three screws 3. Notes: 1.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-21 REPLACING THE UPPER AND LOWER DRUM ASSEMBLY 4-22 ASSEMBLING OF PHASE MATCHING MECHANISM COMPONENTS • Assemble the phase matching mechanism components in the following order. 1. Assemble the pinch roller assembly and pinch drive cam. 2. Mounting the shifter (on the back of the mechanism chassis). 3. Mounting the master cam (on the back of the mechanism chassis). 4. Assemble the connection gear, slow brake and loading motor parts.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 1Insert Reverse Guide Lever Ass’y Insert reverse guide lever ass'y 2 Insert pinch drive cam Align here. Turn the reverse guide lever assembly counterclockwise to the stopper. Fit the pinch drive cam so that the notch of pinch drive cam aligns with the dent of pinch drive lever assembly. Fit the pinch drive cam so that the notch of pinch drive lever assembly aligns with the half-round notch of chassis. Pinch drive lever ass'y Figure 4-41-1.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 1. Make sure that the loading gear is at the Phase-Matching point 1 as shown below. 2. Install, paying attention to insert point 5 and release point 3. 3. For the phase matching at the insert point 1, see the Phase-Matching point 2 as shown below. 4. Finally fix the inserts 1 and 4. 4-23 INSTALLING THE SHIFTER Drum Capstan D.D. motor Reel pulley Phase-Matching point 2 (Bottom side of mechanism chassis) Figure 4-42.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-24 INSTALLING THE MASTER CAM (AT REAR SIDE OF MECHANISM CHASSIS) 4-25 REPLACEMENT OF LOADING MOTOR • Removal 1. Make sure beforehand that the shifter is at the point as shown below. 2. Place the master cam in the position as shown below. E ring (XRESJ30-06000) Master cam Apply grease Apply grease Fully turn clockwise Fully turn counterclockwise Face the wide tooth side ward No grease Figure 4-44-1.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 4-26 ASSEMBLY OF CASSETTE HOUSING 1. Drive Gear and R Drive angle ass’y MSPRT0381AJFJ Apply grease Apply grease Apply grease Figure 4-47. 2. Synchro Gear, Drive Gear L and Drive Gear R LANGF9592AJFW Top surface should be free from scratches or soil. Drive angle Drive gear R Frame Figure 4-48.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 5. ELECTRICAL ADJUSTMENT Notes: • Before the adjustment: Electrical adjustments discussed here are often required after replacement of electronic components and mechanical parts such as video heads. Check that the mechanism and all electric components are in good working condition prior to the adjustments, otherwise adjustments cannot be completed.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U SERVO CIRCUIT ADJUSTMENT 5-2 ADJUSTMENT OF FV (False Vertical Sync) OF STILL PICTURE 5-1 ADJUSTMENT OF HEAD SWITCHING POINT Measuring instrument Dual-trace oscilloscope Mode Playback Cassette Alignment tape (VROEFZHS) Test point VIDEO OUT jack to CH2 TP202 (Sig.)~TP203 (GND) to CH1 Control R701 Head switching point adjustment control Specification 6.0 ± 0.5H (lines) 1. Remove the front panel and play the alignment tape. 2.
0 19.812 CA/END CS/EJ 1 1 1 1 S sensor Open S sensor Close 0 0 Mode detection inside EJ 10.354 12.
REC/PLAY 34 VSF End Set capstan motor to search speed. Press FF key. PLAY Unloading End YES Is take-up reel sensor signal outputted ? Picture appears. Capstan motor turns counterclockwise. Press REC/PLAY key. STOP NO Slow brake pressing STILL STOP Unloading End YES Is take-up reel sensor signal outputted ? End Stop loading motor. Cam switch is at VSR position. Press pinch roller. Turn loading motor counterclockwise. Cam switch is at PU1 position.
Brake function FF/REW operation FF/REW STOP 35 End Loading motor stops. Cam switch is at Stop position. Stop capstan motor. Loading motor turns counterclockwise. Press STOP key. FF/REW End Turn capstan motor in normal or reverse direction, after the remaining tape has been detected. Press FF/REW key. STOP Cassette eject Tape unloading CASSETTE EJECT End Capstan motor stops. Loading motor stops. Cam switch is at Eject position. Loading motor turns clockwise.
NO 36 The cassette tape is presumably damaged. YES Is the pulse NO outputted from reel sensor ? YES Are idler wheel NO ass’y and reel disk in mesh ? YES Does capstan NO motor turn in FF (or REW) direction ? YES Is master cam at FF position ? Replace the reel sensor. Replace the idler ass’y. Replace the capstan motor. YES Are Vco 12V and Vcc 5V applied ? Loading motor control system in trouble.
NO NO 37 Check main PWB. YES Is pulse outputted NO from reel sensor ? YES Is supply reel disk NO winding torque normal ? YES Are idler wheel NO ass’y and supply reel disk in mesh ? YES Master cam shifting to VSR position ? Press REW key. YES Is Playback function normal ? Replace reel sensor. Replace limiter pulley ass’y. Replace idler gear ass’y. Go to 2. REC/ PLAY FAILURE routine. Go to 2. REC/ PLAY FAILURE routine. 3. WINDING FAILURE AT VSR Replace loading motor block.
Check drive system’s gears for damage. Replace damaged gear with new one. • Reel disk • Limiter pulley ass’y • Idler wheel ass’y NO Turn capstan motor by hand. Unusual sound heard ? NO Drive system out of contact with any part on main PWB ? YES Thrust gap found at reel disk ? YES Is reel disk height as specified ? 4-ii) Unusual sound in FF/REW mode YES YES NO NO Replace capstan motor. Rearrange the parts on main PWB. Check reel disk and main chassis. And replace defective parts.
The fuse blows out even when it is replaced with new one. See FLOW CHART NO.2 . Replace IC901. Check whether the secondary side photocoupler circuit operates normally. YES Check whether the primary side photocoupler output control functions normally. YES Check the circuit and replace parts. (IC901, IC903, etc.) Check the circuit and replace parts. (IC901, IC903, Q902, T901, etc.) NO NO When the output voltage fluctuates. FLOW CHART NO.
FLOW CHART NO.6 40 Replace loading motor. Is the specified voltage (about 10V) NO applied at the loading motor terminal when the cassette tape is inserted? YES YES Does pin(13) of IC706 change to NO about 10V when the cassette tape is inserted? YES Does pin(11) of IC706 go to a "H" NO (about 4.7V) level when the cassette tape is inserted? NO NO Check between IC706 and loading motor. Check IC706. Check line pin(91) of IC701 and all the way up thru to pin(11) of IC706.
NO NO 41 Replace cassette cam, gear, etc. YES Does the loading motor run? YES NO Is the specified voltage applied at the NO loading motor terminal? YES Is the voltage about 10V sent out of pin(15) of IC706? YES Is a "H"(about 4.7V) level applied at NO pin(12) of IC706 when a reel pules has been inputted? YES Are pulses applied at pin(2) of IC701 when the take-up reel disk is turning? YES Does the take-up reel disk turn when NO the capstan motor is running? YES NO Replace loading motor.
FLOW CHART NO.13 NO NO NO Check AT 12V line. Check between pin(30) of IC701 and all the way up to pin(2) of IC706. Check PC 5V line. Check IC701. Replace IC701. YES Is V-H.SW.P pulse given out of pin(23) of IC701? YES Is drum PG signal given out of pin(66) of IC701? YES Is drum PG signal given out of pin(7) of IC706? NO NO NO Check IC701. Check line between pin(7) of IC706 and all the way up thru to pin(66) of IC701. Check or replace drum motor.
Check drum FG signal line. YES 43 Does the IC706 operate normally? YES YES NO Is the drum control voltage applied to pin(2) of IC706? YES NO Is the drum APC output at pin(34) of IC701 and drum AFC output at pin(32) of IC701 present? YES Is the head switching pulse at pin(23) NO of IC701 present? NO Is there drum FG signal at pin(65) of IC701 present? In PB mode Replace drum motor. Is pin(30) of IC701 in high impedance? YES Check line between pins(34) and (32) of IC701 and pin(2) of IC706.
YES Adjust the height of the A/C head. YES Does A/C head NO operate normally? NO Does PB CTL signal appear at pin(76) of IC701? 1 Only PB mode inoperative Replace A/C head. Replace IC701. NO Is there capstan AFC and APC at pins(31) and (33) of IC701? YES Check capstan motor unit and/or replace. Check peripheral circuit of X701. NO Is there 14.318MHz YES oscillation at pins (37) and (38) of IC701? YES Are REC and/or PB mode inoperative? Capstan servo does not function. FLOW CHART NO.
FLOW CHART NO.17 Check the line between pin(52) of IC201 and pin(49) of IC701. NO 45 Check the AT 5V line. NO Is 5V applied to the pin(51) of IC701? NO NO Check the PC 5V line. NO Check Q251 periphery. Check the line between pins(63) and (62) of IC201 and pins(56) and (57) of IC701.
YES Check the pins(13) and (14) of IC201 peripheral circuit. (R201, R202, C203) Check between the pins(24) and (23) of IC201. (Check C210.) Is CCD control voltage approx. 5V applied normally to the pin(37) from the pin(57) of IC201? Is clock signal (approx. 7.16 MHz/0.5 Vp-p) for CCD applied normally to the pin(44) from the pin(69) of IC201? YES Is voltage 5V applied to the CCD section power terminal pin(36) of IC201? NO Is luminance signal (approx. 0.
NO NO Replace IC201. YES Is luminance signal (approx. 0.5 Vp-p) input to the pin(23) of IC201? YES NO NO Is luminance signal (approx. 0.5 Vp-p) input to the pin(26) of IC201? YES Is luminance signal (approx. 0.5 Vp-p) input to the pin(42) of IC201? YES Is luminance signal (approx. 0.5 Vp-p) input to the pin(19) of IC201? YES Is the luminance signal (approx. 0.
pin(14) pin(9) pin(48) Rear input terminal Tuner audio terminal 48 NO NO NO NO NO NO NO Check line between X501 and pin(45) of IC651. NO Is Sub carrier signal (3.58MHz, about 900mVp-p) input to pin(45) of IC651? Check line between pin(36) of IC651 and pin(22) of IC701. Check line between pins(43), (42) of IC651 and pins(17), (18) of IC701. Check the regulator circuit of Hi-Fi 5V and PC 9V. Check the peripheral circuit of front input terminal.
FLOW CHART NO.26 Check the line between the pin(11) of IC201 to the pin(62) of IC651. YES Is audio signal output to the pin(11) of IC201? YES Is it possible to confirm the audio signal (PB EQ) on the pin(100) of IC201? Linear audio playback is impossible. (Hi-Fi E-E mode is normal). NO NO NO Replace IC201. YES Check the periphery of pin(99) of IC201. (R617) NO Is the pin(99) of IC201 in "L" level? Readjust the A/C head height. Replace the AC head.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 8. BLOCK DIAGRAM SYSTEM SERVO BLOCK DIAGRAM USMODEL_SYSBLO.
VC-A412U/A413U VC-H812U/H813U VC-A412U/A413U VC-H812U/H813U SIGNAL FLOW BLOCK DIAGRAM(VC-A410U(B)/A411U/A420U) 52~53
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U SIGNAL FLOW BLOCK DIAGRAM(VC-H810U(B)/H811U/H820U) 54~55
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U POWER CIRCUIT BLOCK DIAGRAM 56
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U SCHEMATIC DIAGRAM • The indicated voltages in the following diagram are measured with an SSVM, upon receiving color bars (400 Hz sound signal) in either the record mode or the play mode voltage is indicated as follows. 4.0 . . . . Record mode (SP) (4.0) . . . . PB mode (SP) 4.0 . . . . LP mode 4.0 . . . . EP mode IMPORTANT SAFETY NOTICE: PARTS MARKED WITH " å" ( ) ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET.
VC-A412U/A413U VC-H812U/H813U VC-A412U/A413U VC-H812U/H813U 9. SCHEMATIC DIAGRAM AND PWB FOIL PATTERN MAIN CIRCUIT(1) J I H G F E D C B A 1 2 * VOLTAGE MEASUREMENT MODE PB .......... Parentheses ( ) REC .......
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U MAIN CIRCUIT(2) J I H G F E D C B A 1 2 * VOLTAGE MEASUREMENT MODE PB .......... Parentheses ( ) REC .......
VC-A412U/A413U VC-H812U/H813U VC-A412U/A413U VC-H812U/H813U MAIN CIRCUIT(3) J I H G 150 C914 F E D C B A 1 2 * VOLTAGE MEASUREMENT MODE PB .......... Parentheses ( ) REC .......
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U MAIN CIRCUIT(4) J I H G F E D C B A 1 2 * VOLTAGE MEASUREMENT MODE PB .......... Parentheses ( ) REC .......
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U OPERATION CIRCUIT J I H G F E D C B A 1 2 * VOLTAGE MEASUREMENT MODE PB .......... Parentheses ( ) REC .......
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U PWB FOIL PATTERN OPERATION PWB J I H G F E D C B A 1 2 3 4 5 6 67 7 8 9 10
VC-A412U/A413U VC-H812U/H813U VC-A412U/A413U VC-H812U/H813U MAIN PWB J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 68~69 12 13 14 15 16 17 18 19 20
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U -MEMO- 70
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Part No. ★ Description 10. REPLACEMENT PARTS LISTCode Ref. No. Ref. No. No. ★ Description 10.PartLISTE DES PIECES Code PARTS REPLACEMENT CHANGE DES PIECES Many electrical and mechanical parts in video cassette recorder have special safety-related characteristics.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. Part No. IC706 VHiLB1988//-1 IC903 VHiMM1431AT-1 ★ Description Ref. No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. C215 C216 C217 C218 C219 C220 C221 C223 C227 C251 C252 C301 C302 C303 C304 C305 C306 C307 C308 C309 C310 C311 C312 C319 C320 C351 C352 C353 C354 C356 C357 C358 C501 C502 C503 C504 C505 C506 C507 C508 C509 C511 C512 C513 C514 C515 C517 C518 C521 C602 C603 C604 C605 C606 C607 C608 C609 Part No. ★ Description Code Ref. No. VCEA9M1HW105M V 1 50V Electrolytic AB VCEA9A1HW105M V 1 50V Electrolytic AB (VC-A420U/UC/H820U/UC) VCEA9M0JW476M V 47 6.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. å å å å å å å å å Part No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. Part No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. Part No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. Part No. ★ Description Code Ref. No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. Part No. ★ Description Ref. No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 11.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. Part No. ★ Description Ref. No. Code CASSETTE HOUSING CONTROL PARTS ★ Part No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. ★ Part No. Description CABINET PARTS Code Ref. No. Part No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. Part No. Ref. No. PANEL Part No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. PANEL Part No. ★ Description Code FRONT PARTS(VC-A411U/H811U) Ref. No. ★ Part No.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Part No. ★ Description 12. PACKING OF THE SET Ref. No. Ref. No. Code Part No. ★ Description Code ■ Setting position of the Knobs RF conv. CH.
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U 85
VC-A410U(B)/H810U(B) VC-A411U/H811U VC-A420U/H820U Ref. No. Part No. ★ Description Ref. No. Code ★ Part No. Description Code COPYRIGHT © 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
