SY9T4VC-SA350 VIDEO CASSETTE RECORDER VC-SA350 VC-SA550/W VC-SA350W VC-SA355 VC-SA350/W, VC-SA355 VC-SA550 VC-SA550W MODELS 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.
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VC-SA350/350W VC-SA355 VC-SA550/550W 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.
Video recording system: Rotary, slant azimuth two heads helical scan system Video signal: PAL/MESECAM/NTSC colour or monochrome (System B/G, I, D/K) signals Recording/playing time: 240 min max. with SHARP E-240 tape (PAL: SP mode) 480 min max. with SHARP E-240 tape (PAL: LP mode) 160 min max.
VC-SA350/350W VC-SA355 VC-SA550/550W 2. DISASSEMBLY AND REASSEMBLY 2-1 DISASSEMBLY OF MAJOR BLOCKS TOP CABINET : Remove 2 screws 1. TOP CABINET FRONT PANEL : Remove knob, button holder and play button 2. Remove 2 screws 3 and 7 clips 4.
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VC-SA350/350W VC-SA355 VC-SA550/550W 2-2 DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY 2. Removing the mechanism and cassette housing. 1. When removing the mechanism from the main PWB, Remove 2 screws 4 fixing the cassette housing to the remove the antenna cover 1 screw 1, and remove the mechanism, and remove the cassette housing.
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VC-SA350/350W VC-SA355 VC-SA550/550W 2-3 CARES WHEN REASSEMBLING cassette housing. (Conditions: When mechanism and INSTALLING THE CASSETTE HOUSING PWB have been installed) When the cassette housing is installed on the mechanism, the initial setting is essential condition. 2. Mechanical initial setting...
VC-SA350/350W VC-SA355 VC-SA550/550W 3. FUNCTION OF MAJOR MECHANICAL PARTS (TOP VIEW) Function Function Full erase head Reverse guide lever ass’y Supply pole base ass’y Casecon drive gear Tension arm ass’y Take-up reel disk Idler wheel ass’y Pinch roller lever ass’y Pinch drive lever ass’y...
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VC-SA350/350W VC-SA355 VC-SA550/550W FUNCTION OF MAJOR MECHANICAL PARTS (BOTTOM VIEW) Function Function Slow brake Clutch lever Master cam Limiter pulley ass'y Capstan D.D. motor Casecon drive gear Reel belt Shifter...
VC-SA350/350W VC-SA355 VC-SA550/550W 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.
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VC-SA350/350W VC-SA355 VC-SA550/550W MAINTENANCE CHECK ITEMS AND EXECUTION TIME Perform the maintenance with the regular intervals as follows so as to maintain the quality of machine. Maintained 1000 1500 2000 Possible symptom Remarks hrs. hrs. hrs. hrs. encountered Parts Abnormal rotation or significant Guide roller ass’y...
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VC-SA350/350W VC-SA355 VC-SA550/550W REMOVING AND INSTALLING THE CASSETTE Notes: HOUSING 1. When fitting the S/E sensor holder to the cassette controller frame L/R, take care. • Removal 2. Misengagement of teeth of casecon drive gear and drive 1. In the cassette removing mode, remove the cassette.
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VC-SA350/350W VC-SA355 VC-SA550/550W REEL DISK REPLACEMENT AND HEIGHT 4. Assemble the Supply main brake ass'y. CHECK Notes: • Removal 1. When installing the reel disk, take due care so that the 1. Remove the cassette housing control assembly. tension band ass'y is not deformed and grease does no 2.
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VC-SA350/350W VC-SA355 VC-SA550/550W Note: Notes: Whenever replacing the reel disk, perform the height check- 1. Hold the torque gauge by hand so that it is not moved. ing and adjustment. 2. Do not keep the reel disk in lock state. Do not allow long- time measurement.
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VC-SA350/350W VC-SA355 VC-SA550/550W Notes: CHECKING AND ADJUSTMENT OF TAKE-UP 1. Hold the torque gauge by hand so that it is not moved. TORQUE IN VIDEO SEARCH REWIND MODE 2. Do not keep the reel disk in lock state. Do not allow long- •...
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VC-SA350/350W VC-SA355 VC-SA550/550W CHECKING THE VIDEO SEARCH REWIND BACK TENSION • Remove the cassette housing control assembly. • After short-circuiting TP801 provided at the center Tension gauge Pinch roller (facing to the main PWB), plug in the power cord. 8.8 ~ 11.8 N (900 - 1,200gf) •...
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VC-SA350/350W VC-SA355 VC-SA550/550W 2. Visually check to see if the right edge of the tension pole Tension pole adjuster adjusting range is within the 2.3 ± 0.25 from the right edge of the Sup guide shaft. Tension pole adjuster Sup guide shaft Tension pole 2.3 ±...
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VC-SA350/350W VC-SA355 VC-SA550/550W • Adjustment • Checking the brake torque at the take-up side 1. If the indication of torque cassette meter is lower than the setting, shift the tension spring engagement to the part A. Torque gauge 2. If the indication of torque cassette meter is higher than the setting, shift the tension spring engagement to the part B.
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VC-SA350/350W VC-SA355 VC-SA550/550W REPLACEMENT OF A/C (Audio/Control) HEAD 3. Align the left end of gear of A/C head plate with the punched mark of chassis, tentatively tighten the screws 1. Remove the cassette housing control assembly. 1 and 2 so as to ensure smooth motion of A/C head 2.
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VC-SA350/350W VC-SA355 VC-SA550/550W A/C HEAD HEIGHT ROUGH ADJUSTMENT HEIGHT ADJUSTMENT OF REVERSE GUIDE • Setting 1. Adjust the height from the mechanism chassis to the Azimuth screw reverse guide lower flange to 13.38 mm, using the reverse guide height adjustment jig, in tape loading state.
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VC-SA350/350W VC-SA355 VC-SA550/550W Notes: ADJUSTMENT OF TAPE DRIVE TRAIN 1. Previously set the tracking control in the center position, 1. Tape run rough adjustment and adjust the envelop waveform to maximum with X 1 Remove the cassette housing control assembly.
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VC-SA350/350W VC-SA355 VC-SA550/550W 3 Next, press the tracking button (+), (–) and change PB CHROMA the envelope waveform from max to min and from Envelope 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 envelope wave- form changes nearly parallel.
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VC-SA350/350W VC-SA355 VC-SA550/550W REPLACEMENT OF DRUM D.D. MOTOR REPLACEMENT OF THE CAPSTAN D.D. 1. Set the ejection mode. (DIRECT DRIVE) MOTOR 2. Withdraw the main power plug from the socket. • Remove the mechanism from the main PWB (refer to Page 5 item 1.
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VC-SA350/350W VC-SA355 VC-SA550/550W REPLACING THE UPPER AND LOWER DRUM ASSEMBLING OF PHASE MATCHING ASSEMBLY MECHANISM COMPONENTS • Assemble the phase matching mechanism compo- • Replacement (Perform in the numerical order) nents in the following order. 1 Remove the motor as stated in Page 22 D.D. motor 1.
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VC-SA350/350W VC-SA355 VC-SA550/550W 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 Fit the pinch drive cam so that the notch of pinch to the stopper.
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VC-SA350/350W VC-SA355 VC-SA550/550W 1. Make sure that the loading gear is at the PHASE- INSTALLING THE SHIFTER MATCHING point 1 as shown below. 2. Install, paying attention to insert point 5 and release point 3. Drum 3. For the phase matching at the insert point 1, see the Capstan PHASE-MATCHING point 2 as shown below.
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VC-SA350/350W VC-SA355 VC-SA550/550W INSTALLING THE MASTER CAM (AT REAR REPLACEMENT OF LOADING MOTOR • Removal SIDE OF MECHANISM CHASSIS) 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.
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VC-SA350/350W VC-SA355 VC-SA550/550W 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.
VC SA350/350W VC-SA355 VC-SA550/550W 5. ELECTRICAL ADJUSTMENT Notes: • Before the adjustment: Electrical adjustments discussed here are often required after replacement of electronic components and mechani- cal parts such as video heads. Check that the mechanism and all electric components are in good working condition prior to the adjustments, otherwise adjustments can not be completed.
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VC SA350/350W VC-SA355 VC-SA550/550W SERVO CIRCUIT ADJUSTMENT ADJUSTMENT OF PAL SYSTEM SP/LP SLOW TRACKING PRESET ADJUSTMENT OF HEAD SWITCHING POINT Measuring Colour TV monitor Measuring Dual-trace oscilloscope instrument instrument Colour TV monitor Mode Playback Mode Playback Cassette Self-recorded tape Cassette Alignment tape (VROCPSV) (SP/LP mode)(See Note below) Test point...
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VC SA350/350W VC-SA355 VC-SA550/550W ADJUSTMENT OF PAL SYSTEM FV (False 6. Look at the monitor screen and adjust the (]) or ([) TRACKING buttons so that the there is noise disap- Vertical Sync) OF STILL PICTURE pears from the screen. 7.
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VC SA350/350W VC-SA355 VC-SA550/550W ADJUSTMENT OF VCO CIRCUIT Measuring Colour TV monitor instrument DV voltmeter RF signal at E12-CH (by VHF Mode signal generator) Test point Pin(1)(AF1) of TP101. Pin(4)(GND.) of TP101. Control R1601 VCO control 2.5 ± 0.5V Specification 1.Set VCR to Power on mode.
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VC SA350/350W VC-SA355 VC-SA550/550W REPLACEMENT OF IC710(E PROM) Servicing precautions When the IC710(E PROM) has been replaced, make the following reprogramming. Depending on models, the IC710(E PROM) has been factory adjusted for it’s memory function. It’s therefor necessary to reprogram the memory function for the model in question. Note that the servo circuit requires readjustments for the slow and still modes.
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VC SA350/350W VC-SA355 VC-SA550/550W ROM MAP MODEL VC-SA550/550W VC-SA350/350W VC-SA355 EP n ∗ ∗ NTSC Luminance level EP n ∗ ∗ NTSC Chrominance level SP n ∗ ∗ NTSC Luminance level SP n ∗ ∗ NTSC Chrominance level LP p ∗ ∗...
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VC-SA350/350W VC-SA350/350W VC-SA355 VC-SA355 VC-SA550/550W VC-SA550/550W SIGNAL FLOW BLOCK DIAGRAM PB Chrominance Signal E-E Signal PB Luminance Signal REC Chrominance Signal REC Luminance Signal...
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VC-SA350/350W VC-SA350/350W VC-SA355 VC-SA355 VC-SA550/550W VC-SA550/550W AUDIO BLOCK DIAGRAM PB Audio Signal EE Signal REC Audio Signal...
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VC-SA350/350W VC-SA355 VC-SA550/550W SCHEMATIC DIAGRAM IMPORTANT SAFETY NOTICE: BE SURE TO USE GENUINE PARTS FOR SE- CURING THE SAFETY AND RELIABILITY OF THE SET. å " AND PARTS PARTS MARKED WITH " SHADED (IN BLACK) ARE ESPECIALLY IMPOR- TANT FOR MAINTAINING THE SAFETY AND PROTECTING ABILITY OF THE SET.
VC-SA350/350W VC-SA355 VC-SA550/550W 10. REPLACEMENT PARTS LIST Ref. No. Part No. Description Code Ref. No. Part No. Description Code PARTS REPLACEMENT COILS AND TRANSFORMERS L5401 VP-ZK680K0000 V Peaking 68µH L5402 VP-ZK680K0000 V Peaking 68µH Parts marked with " å " are important for maintaining the safety of...
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VC-SA350/350W VC-SA355 VC-SA550/550W Ref. No. Part No. Description Code Ref. No. Part No. Description Code Q305 VSKRC103S//-1 V KRC103S D994 VHDRL1N4004-1 V RL1N400 å IC902 (VC-SA350/SA350W) RH-FX0001AJZZ V TCET1103G Q306 VS2SA1530ARS1 V 2SA1530AR Q701 RH-PX0233GEZZ J PT493FL2 Q501 VS2SC3052EF-1 V 2SC3052EF...
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VC-SA350/350W VC-SA355 VC-SA550/550W Ref. No. Part No. Description Code Ref. No. Part No. Description Code å C902 RC-FZ029CUMZZ V 0.1 250V M.Polypro R330 VRS-CY1JF222J V 2.2k 1/16W Metal Oxide AA å C903 RC-KZ0105GEZZ J 2200p 250V Ceramic R331 VRD-RA2BE102J V 1k 1/8W Carbon å...
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VC-SA350/350W VC-SA355 VC-SA550/550W Ref. No. Part No. Description Code Ref. No. Part No. Description Code R727 VRD-RA2EE151J V 150 1/4W Carbon R863 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R728 VRS-CY1JF182J V 1.8k 1/16W Metal Oxide AA R864 VRS-CY1JF102J V 1k...
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VC-SA350/350W VC-SA355 VC-SA550/550W Ref. No. Part No. Description Code Ref. No. Part No. Description Code FB203 RBLN-0036CEZZ V Ferrite Bead MISCELLANEOUS PARTS FB701 RBLN-0036CEZZ V Ferrite Bead P881 QPLGZ0626CEZZ V Plug, 6pin(OA) FB702 RBLN-0036CEZZ V Ferrite Bead S881 QSW-Z0001AJZZ V Shuttle Switch å...
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VC-SA350/350W VC-SA355 VC-SA550/550W Ref. No. Part No. Description Code Ref. No. Part No. Description Code C1633 VCCCCY1HH180J V 18p 50V Ceramic MSLiP0010AJZZ V Sifter C1634 VCEAEM1CW476M V 47 16V Electrolytic MSPRD0175AJFJ V Reverse Guide Spring 2 C1635 VCKYCY1HF103Z V 0.01...
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PSLDM4562AJFW V H/A Shield Unit (VC-SA350/SA350 LHLDZ1962AJ00 V Sensor LED Holder RRMCG0251AJSA V Infrared Remote Control PGUMS0026AJZZ V Foot Felt Unit (VC-SA355 TLABM4083AJZZ V Model Label (VC-SA350 RRMCG1204AJSA V INFRARED R-C TLABM4084AJZZ V Model Label (VC-SA350 (VC-SA550/SA550 TLABM4087AJZZ V Model Label (VC-SA350 TMAPC0038AJZZ...
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Code Ref. No. Part No. Description Code COPYRIGHT C 1999 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.
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