Sharp vc-ga56z,vc-gh96z Service Manual

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SERVICE MANUAL

S60A7VC-GA56Z

VIDEO CASSETTE RECORDER

VC-GA56Z

VC-GA56Z VC-GH96Z

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.

VC-GH96Z

CONTENTS

Page

1. GENERAL INFORMATION ...........................................................................................................3

2. DISASSEMBLY AND REASSEMBLY ........................................................................................... 5

3. FUNCTION OF MAJOR MECHANICAL PARTS........................................................................... 8

4. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS ........................ 10

5. ELECTRICAL ADJUSTMENT ..................................................................................................... 29

6. MECHANISM OPERATION FLOWCHART AND TROUBLESHOOTING GUIDE ...................... 31

7. TROUBLESHOOTING ................................................................................................................ 37

8. BLOCK DIAGRAM....................................................................................................................... 48

9. SCHEMATIC DIAGRAM AND PWB FOIL PATTERN ................................................................. 57

10. PARTS LIST................................................................................................................................ 71

11. EXPLODED VIEW OF MECHANICAL PARTS ........................................................................... 79

12. PACKING OF THE SET .............................................................................................................. 83

SHARP CORPORATION

VC-GA56Z VC-GH96Z

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. Make readjustment, if needed after replacement of part, with the mechanism and its PWB in position in the main frame.

(1) Start and end sensors: Q701 and Q702

Insert the sensor’s projection deep into the upper hole of the holder. Referring to the PWB, fix the sensors tight enough.

(2) Photocoupler: IC901

Refer to the symbol on the PWB and the anode marking of the part.

(3) Cam switches A and B: D708 and D709.

Adjust the notch of the part to the white marker of the symbol on the PWB. Do not allow any looseness.

(4) Take-up and supply sensors: D707 and D706.

Be careful not to confuse the setting direction of the parts in reference to the symbols on the PWB. Do not allow any looseness.

1. GENERAL INFORMATION

1-1 FEATURES

Only for VC-GH96Z

• Hi-Fi Stereo Sound

• Built-in MTS (Multi-channel TV Sound) Decoder

Common Features

• 400 Times Rewind Speed to Fast Forward and Rewind.

• EZ Set Up

• S-VHS Quasi Playback

• Double-Azimuth 4-Heads

• 19µ Clear Picture System (in EP mode)

• HQ System for Better Resolution and Color Reproduction

• Multi-Language (English/Spanish/French) OSD (On Screen Display) with Menu Screen Guidance

• 181-channel PLL Quartz Synthesized Random Access Tuner with Automatic Channel Setting

• Quick Start with Full Loading Mechanism

• 1-Year, 8 Event Programmable Timer

• Simple Recording Timer

• Universal Remote Control

VC-GA56Z VC-GH96Z

• Sharp Super Picture

• Field-Still/Variable Slow/Frame Advance

• Real-Time Counter

• Blue Screen Noise Elimination

• Auto Tracking Control System

• Digital Program Search System (DPSS)

• Skip Search

• Instant Replay

• Auto Zero Back

• Recorded Section Auto Repeat

• Full Automatic Playback

• Tamper Proof

• Up to 8 Hours of Recording and Playback (with T-160 cassette)

• Automatic Head Cleaning System

• Built in Front AV Jacks

1-2 SPECIFICATIONS

Format: VHS NTSC Standard

Video Recording System: Rotary, Slant Azimuth Two-Head Helical Scan

Number of Video Heads: 4

Video Signal Standard: NTSC Color System

Audio Recording System: 1 Stationary Head for Linear Audio

Tape Width: 12.7 mm (1/2 inch)

Tape Speed: (SP) 33.35 mm/sec. (1.31 i.p.s.)

Maximum Recording Time: (SP) 160 min. (T-160)

Channel Coverage: VHF 2-13

Antenna Input: 75 Ohm

Video Input: 0.5 to 2.0 Vp-p, 75 Ohm unbalanced

Video Output: 1.0 Vp-p, 75 Ohm unbalanced

Audio Input: –8 dBs, 47k Ohm unbalanced (0 dBs = 0.775 Vrms)

Audio Output: –8 dBs, 1k Ohm unbalanced (0 dBs = 0.775 Vrms)

Hi-Fi Audio (Only for Hi-Fi models):

Memory Backup: 24 hours

Operating Temperature: 5°C to 40°C (41°F to 104°F)

Storage Temperature: –20°C to 60°C (–4°F to 140°F)

Power Source: 110 –240 V AC, 50/60 Hz

Power Consumption: 18 W

Weight: 2.8 kg

Dimensions (approx.): 360 (W) x 92.5 (H) x 255 (D) mm

Accessories included: 75 ohm coaxial cable, Operation manual, Remote control unit, Battery (2 pcs.)

2 Rotary Heads for Hi-Fi stereo (Only Hi-Fi models)

(LP) 16.67 mm/sec. (0.66 i.p.s.) (playback only) (EP) 11.12 mm/sec. (0.44 i.p.s.)

(EP) 480 min. (T-160) UHF 14-69

CATV 1-125

Dynamic Range: Frequency Response:

90 dB

20 Hz-20k Hz

AC plug adaptor (Flat ↔ Round)

Note: Specifications are subject to change without notice.

VC-GA56Z

(VC-GA56Z) (VC-GH96Z)

VC-GH96Z

1-3 LOCATION OF MAJOR COMPONENTS AND CONTROL

2. DISASSEMBLY AND REASSEMBLY

2-1 DISASSEMBLY OF MAJOR BLOCKS

TOP CABINET : Remove 2 screws 1. FRONT PANEL : Remove button 2.

Remove 2 screws 3 and 7 clips 4.

OPERATION : Remove 1 screw 5. PWB SHIELD ANGLE : Remove 1 screw 6 with shield angle. MECHANISM/ : Remove 1 screw 7, 1 screw 8, 2 MAIN PWB screws 9, 2 screws 0. Remove 1

screw q with antenna terminal cover. Remove 1 screw w with top cabinet fix angle.

ANTENNA TERMINAL COVER

VC-GH96Z

ANTENNA TERMINAL COVER

TOP CABINET

VC-GA56Z

VC-GA56Z VC-GH96Z

SHIELD ANGLE

FRONT PANEL

MECHANISM/ MAIN PWB ASSEMBLY

VC-GH96Z

TOP CABINET FIX ANGLE

OPERATION PWB

MAIN FRAME

VC-GA56Z VC-GH96Z

2-2 DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY

1. When removing the mechanism from the main PWB, remove the antenna cover 1 screw 1, and remove the antenna cover. Remove the PWB bottom plate 1 screw 2. Remove the FFC cable (AA, AD, AH) 3 which connecting the PWB and the mechanism. Take out vertically the mechanism so that it does not damage the adjacent parts.

2. Removing the mechanism and cassette housing. Remove 2 screws 4 fixing the cassette housing to the mechanism, and remove the cassette housing.

VC-GH96Z

CASSETTE HOUSING

MECHANISM CHASSIS

MAIN PWB

2-3 CARES WHEN REASSEMBLING

VC-GA56Z VC-GH96Z

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. After ascertaining the return to the initial setting position (*1) install the

Pulley feed gear

Screwdriver

Tilt mark (*1)

cassette housing. (Conditions: When mechanism and PWB have been installed)

2. Mechanical initial setting

Feed the pulley feed gear of loading motor with screw driver. After ascertaining the return to the initial set position (*1) install the cassette housing in the specified position. (This method is applied only for the mechanism.)

Casecon drive gear

Drive angle of cassette housing

INSTALLING THE MECHANISM ON PWB

Lower vertically the mechanism, paying attention to the mechanism edge, and install the mechanism with due care so that the parts are not damaged. So as to fix the mechanism to the main PWB install two housings. (Fit the antenna cover to one of them. For other, fix the vicinity of loading motor and solder joint side of main PWB.) Connect again the FFC cable (AA-MH, AD-ME, AH-MH) between the mechanism and the main PWB.

END SENSOR

REC TIP SW

VC-GH96Z

PARTS WHICH NEED PARTICULAR CARE

When installing the mechanism chassis on the PWB unit, take care so as to prevent deformation due to contact of mechanism chassis with REC TIP SW.

AE CONNECTOR

AC CONNECTOR

START SENSOR

AL CONNECTOR

VC-GA56Z VC-GH96Z

3. FUNCTION OF MAJOR MECHANICAL PARTS (TOP VIEW)

No. Function

1 Full erase head 2 Supply pole base ass’y 3 Tension arm 4 Idler wheel ass’y 5 Pinch drive lever ass’y 6 Supply reel disk

No. Function

8 Take-up main brake

9 Pinch drive cam 10 A/C head ass’y 11 Reverse guide lever ass'y 12 Casecon drive gear 13 Take-up reel disk

7 Supply main brake

14 Pinch roller lever ass’y

FUNCTION OF MAJOR MECHANICAL PARTS (BOTTOM VIEW)

VC-GA56Z VC-GH96Z

19 20

No. Function

15 Drum ass’y 16 Loading motor 17 Drum drive motor 18 Take-up pole base ass’y 19 Slow brake lever 20 Master cam 21 Capstan D.D. motor

No. Function

22 Reel belt 23 Clutch lever 24 Limiter pulley ass'y 26 Shifter

VC-GA56Z VC-GH96Z

4. ADJUSTMENT, REPLA CEMENT 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.

4-1 MECHANISM CONFIRMATION ADJUSTMENT JIG

So as to perform completely the mechanism adjustment prepare the following special jigs. So as to maintain the initial performance of the machine the maintenance and check are necessary. Utmost care must be taken so that the tape is not damaged. If adjustment needs any jig, be sure to use the required jig.

No. Jig ltem Part No. Code Configuration Remarks

This cassette torque meter is used for check-

1. Torque Cassette Meter JiGVHT-063 CZ

JiGTG0090 CM

Torque Gauge

JiGTG1200 CN

3. Torque Gauge Head JiGTH0006 AW

ing and adjusting the torque of take-up for measuring tape back tension.

These Jigs are used for checking and adjusting the torque of take-up and supply reel disks.

4. Torque Driver JiGTD1200 CB

Master Plane Jig and Reel Disk Height

5. Adjusting Jig

JiGRH0002 BR JiGMP0001 BY JiGSG2000 BS

Tension Gauge

JiGSG0300 BF

Pinch pressing force

7. JiGADP003 BK

measuring jig Reverse guide height

adjustment box driver

Alignment Tape

JiGDRiVER11055

VROATSV CD

VROEFZCS BG

VROEFZHS BH

When fixing any part to the threaded hole using resin with screw, use the jig. (Specified torque 5 kg)

These Jigs are used for checking and adjusting the reel disk height.

There are two gauges used for the tension measurements, 300 g and

2.0 kg. This Jig is used with the tension

gauge. Rotary transformer clearance adjusting jig.

This Jig is used for height adjustment of the reverse guide (for reverse guide height adjustment).

These tapes are especially used for electrical fine adjustment.

Video Audio HiFi Audio Track 525 Monoscope 7k — 58µm NTSC Color Bar 1k — 58µm

Black Level (only SYNC) signal

— 19µm

2.3k

Guide roller height

10. JiGDRiVERH-4 AP

adjustment driver

X value adjustment

11. JiGDRiVER-6 BM

gear driver Reverse Guide Height

12. JiGRVGH-F18 BU Adjusting Jig

This screwdriver is used for adjusting the guide roller height.

For X value adjustment

This Jig is used for height adjustment of the reverse guide.

4-2 MAINTENANCE CHECK ITEMS AND EXECUTION TIME

NOTE : Part replacement. : Cleaning : Apply grease <Specified> Cleaning liquid Industrial ethyl alcohol

* This mechanism does not need electric adjustment with variable resistor. Check parts. If any deviation is found,

clean or replace parts.

Maintained

Parts

Remarks

500 hrs.

1000 hrs.

1500 hrs.

2000 hrs.

Possible symptom

encountered

Guide roller ass’y Sup guide shaft Reverse guide Slant pole on pole base Full erase head A/C head

Upper and lower drum ass’y

Capstan D.D. motor Pinch roller

Reel belt

Tension band ass’y Loading motor

Idler ass’y Limiter pulley Supply/take-up main brake levers

AHC (Automatic Head Cleaner)

Colour and beating Small sound or sound

distortion Poor S/N ratio, no colour

Poor flatness of the envelope with alignment tape

No tape running, uneven colour

No tape running, tape slack

No tape running, tape slack, no fast forward/ rewind motion

Lateral noises Head occasionally blocked

Abnormal rotation or significant vibration requires replacement.

Clean tape contact part with the specified cleaning liquid.

Clean tape contact area with the specified cleaning liquid.

Clean rubber and rubber contact area with the specified cleaning liquid.

Replace the roller of the cleaner when it wears down. Just change the AHC roller assembly for new one.

Screen swaying Cassette not loaded or

unloaded No tape running, tape

slack

Tape slack

Perform the maintenance with the regular intervals as follows so as to maintain the quality of machine.

VC-GA56Z VC-GH96Z

Video head cleaning procedure

1. Apply one drop of cleaning liquid to the cleaning paper with the baby oiler.

2. Gently press the cleaning paper against the video head to fix your finger, and move the upper drum so that each

3. Wipe with the dry cleaning paper.

Notes :

head is passed to and fro 5 times (do not move the cleaning paper).

• Use the commercially available ethanol of Class 1 as cleaning liquid.

• Since the video head may be damaged, do not move up and down the cleaning paper.

• Whenever the video head is cleaned, replace the cleaning paper.

• Do not apply this procedure for the parts other than the video head.

Rotate the upper drum with one hand.

Gently press the cleaning paper to fix with your finger, and rotate the upper drum to clean. Move to and fro 5 times for each head. (Do not move the cleaning paper.)

Parts Code Description Code ZPAPRA56-001E Cleaning Paper AW ZOiLR-02-24TE Babe Oiler (Spoit) AH

VC-GA56Z

500g

Mechanism chassis

Weight to prevent float (500g)

VC-GH96Z

4-3. REMOVING AND INSTALLING THE CAS-

SETTE HOUSING

• Removal

1. In the cassette removing mode, remove the cassette.

2. Unplug the power cord.

3. Remove in the following numerical order. a) Remove two screws 1. b) Slide and pull up the cassette housing control.

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. When installing or removing, take care so that the cassette housing control and tool do not contact the guide pin or drum.

5. After installing the cassette housing control once perform cassette loading operation.

4-4. TO RUN A TAPE WITHOUT THE CASSETTE

HOUSING CONTROL ASSEMBLY

1. Remove the full-surface panel.

2. Short-circuit TP803 and TP802.

3. Plug in the power cord.

4. Turn off the power switch.

(The pole bases move into U.L.position.)

5. Open the lid of a cassette tape by hand.

6. Hold the lid with two pieces of vinyl tape.

7. Set the cassette tape in the mechanism chassis.

8. Stabilize the cassette tape with a weight (500g) to

prevent floating.

9. Turn on the power switch.

10. Perform running test.

Figure 4-1.

• Reassembly

1. Before installing the cassette housing control, shortcircuit TP803 and TP802 provided at operation PWB, press the eject button. The casecon drive gear turns and stops when the positioning mark appears. Engage two teeth of casecon drive gear with the three teeth of casecon drive angle gear, and set on the mechanism chassis as shown below.

Casecon drive gear

Casecon drive angle gear

Figure 4-2.

Figure 4-3.

Note:

The weight should not be more than 500g. To take out the cassette tape.

1. Turn off the power switch.

2. Take out the cassette tape.

2. Install in the reverse order of removal.

VC-GA56Z VC-GH96Z

4-5. REEL DISK REPLACEMENT AND

HEIGHT CHECK

• Removal

1. Remove the cassette housing control assembly.

2. Pull the tension band out of the tension arm ass'y.

3. Remove the Supply/Take-up main brake ass'y.

4. Open the hook at the top of the reel disk, and remove the reel disk.

Note:

Take care so that the tension band ass'y and main brake ass'y (especially soft brake) are not deformed.

Tension arm ass'y

Supply main brake ass'y

Tension band ass'y

Supply reel disk

Take-up main brake ass'y

Take-up reel disk

4. Assemble the Supply main brake ass'y.

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.

• Reassembly (Take-up reel disk)

1. Clean the reel disk shaft and apply grease (SC-141) to it.

2. Align the phase of the reel disk to that of the reel relay gear and to install a new take-up reel disk onto the shaft.

3. Check the reel disk height and reassemble the take-up main brake ass'y.

Note:

1. Take care so that the Take-up main brake ass'y is not damaged. Take care so that grease does not adhere the brake surface.

2. After reassembly, check the video search rewind back tension (see 4-10), and check the brake torque (see 4-

14).

• Height checking and adjustment Note:

1. Set the master plane with due care so that it does not contact the drum.

2. When putting the master plane, shift the reverse guide a little in the loading direction. Care must be taken since excessive shift results in damage.

Figure 4-4.

Note:

When the tension band ass'y is pressed in the direction of the arrow for removal, the catch is hard to be deformed.

Figure 4-5.

• Reassembly (Supply reel disk)

1. Clean the reel disk shaft and apply grease (SC-141) to it.

2. Match the phases of reel disk and reel relay gear, and set the new reel disk.

3. After checking the reel disk height, wind the tension band ass'y around the reel disk, and insert into the hole of tension arm ass'y.

Master plane

Reverse guide

Supply reel disk

Cassette lock release shaft

Take-up reel disk

Position pin

Figure 4-6.

Note:

• Check that the reel disk is lower than part A but higher than part B. If the height is not correct, readjust the reel disk height by changing the poly-slider washer under the reel disk.

VC-GA56Z VC-GH96Z

Note:

Whenever replacing the reel disk, perform the height checking and adjustment.

Master plane

10 ± 0.2mm

Reel disk

Reel disk height adjusting jig

Mechanism chassis

Figure 4-7.

4-6. CHECKING AND ADJUSTMENT OF TAKE-

UP TORQUE IN FAST FORWARD MODE

• Remove the cassette housing control assembly.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Setting

1. Set a torque gauge to zero on the scale. Place it on the take-up reel disk.

2. Press the FF button.

3. To calculate the remaining capacity of the play back mode, slowly rotate the supply reel disk, and then shift it into the forward mode.

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 long-time measurement.

4-7. CHECKING AND ADJUSTMENT OF

TAKE-UP TORQUE IN REWIND MODE

• Remove the cassette housing control assembly.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Setting

1. Set a torque gauge to zero on the scale. Place it on the supply reel disk.

2. Press the rewind button.

3. To calculate the remaining capacity, slowly rotate the take-up reel disk, and then shift it into the rewind mode.

• Checking

1. Turn the torque gauge slowly (one rotation every 2 to 3 seconds) by hand in the CCW direction.

2. Make sure that the indication of torque gauge is not less than 30mN·m (306gf·cm).

Torque gauge

• Checking

1. Turn the torque gauge slowly (one rotation every 2 to 3 seconds) by hand in the CW direction.

2. Make sure that the indication of torque gauge is not less than 30mN·m (306gf·cm).

Torque gauge

30mN·m (306gf·cm) or more

Idler ass'y

The gauge is held at its maximum value. (Red mark)

Figure 4-8.

• Adjustment

1. If the FF winding-up torque is less than the specified value, clean the capstan D.D. motor pulley, drive belt, and limiter pulley with cleaning liquid, and check again.

2. If the torque is less than the set value, replace the reel belt.

30mN·m (306gf·cm) or more

CCW

The gauge is held at its maximum value. (Red mark)

Supply reel disk

Idler ass'y

Figure 4-9.

• Adjustment

1. If the rewind winding-up torque is less than the specified value, clean the capstan D.D. motor pulley, drive belt, and limiter pulley with cleaning liquid, rewind again, and check the winding-up torque.

2. If the winding-up torque is still out of range, replace the drive belt.

VC-GA56Z VC-GH96Z

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 long-time measurement.

4-8. CHECKING AND ADJUSTMENT OF TAKE-

UP TORQUE IN RECORD/PLAYBACK MODE

• Remove the cassette housing control assembly.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Turn off the power switch.

• Open the cassette torque meter lid, and fix it with tape.

• Load the cassette torque meter into the unit.

• Put the weight (500g) on the cassette torque meter.

• Turn on the power switch.

• Press the picture record button, and set EP picture record mode (x3).

Set value EP6.9 ± 2.5mN·m (70 ± 25gf·cm)

4-9. CHECKING AND ADJUSTMENT OF

TAKE-UP TORQUE IN VIDEO SEARCH REWIND MODE

• Remove the cassette housing control assembly.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Setting

Press the playback button and rewind button to set the video search rewinding mode.

• Checking

Place the torque gauge on the supply reel disk, and turn it counterclockwise very slowly (one rotation every 1 to 2 seconds) and check that the torque is within the set value

14.0 ± 3.9mN⋅m. (144 ± 40gf⋅cm)

Torque gauge

CCW

500g

Cassette torque meter

Figure 4-10.

• Checking

1. Make sure that value is within the setting 6.9 ± 2.5mN·m (70 ± 25gf·cm).

2. The winding-up torque fluctuates due to variation of rotation torque of limiter pulley ass'y. Read the center value of fluctuation as setting.

3. Set the EP record mode (x3) and make sure that the winding-up torque is within setting.

• Adjustment

If the playback winding-up torque is not within the setting, replace the limiter pulley assembly.

Note:

When the torque cassette is set, put a weight (500g) to prevent rise. When the cassette torque meter is taken out. Turn off the power switch.

Supply reel disk

Figure 4-11.

Note:

Surely put the torque gauge on the reel disk to measure. If the torque gauge is raised, accurate measurement is impossible.

• Adjustment

If the rewinding playback winding-up torque is not within the setting, replace the limiter pulley assembly.

Note:

The winding-up torque fluctuates due to variation of rotation torque of supply reel disk. Read the center value of fluctuation as setting.

VC-GA56Z VC-GH96Z

4-10. CHECKING THE VIDEO SEARCH

REWIND BACK TENSION

• Remove the cassette housing control assembly.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Checking

1. After pressing the play button, press the rewind button, and set the video search rewind mode.

2. Place the torque gauge on the take-up reel disk, and turn it counterclockwise very slowly (one rotation every 2 to 3 seconds) and check that the torque is within the set value 3.4 ± 1.5mN⋅m (35 ± 15gf⋅cm).

Torque gauge

CCW

Take-up reel disk

Figure 4-12.

Notes:

Set the torque gauge securely on the take-up reel disk. If it is not secure, the measurement will be incorrect.

4-11. CHECKING THE PINCH ROLLER

PRESSURE

• Remove the cassette housing control assembly.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

Tension gauge

Pinch roller

Capstan shaft

Tension gauge adapter

900 - 1,200gf

Figure 4-13.

1. Detach the pinch roller from the capstan shaft. Do not separate excessively. Or the pinch lever and pinch double action lever may disengage.

2. Engage the tension gauge adapter with the pinch roller shaft, and pull in the arrow direction.

3. Gradually return the pinch roller, and measure the pulling force when the pinch roller contacts the capstan shaft.

4. Make sure that the measured value is within setting 9.0 N to 11.8 N (900 to 1,200gf).

4-12. CHECKING AND ADJUSTMENT OF

TENSION POLE POSITION

• Remove the cassette housing control assembly.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Setting

1. Turn off the power switch.

2. Open the cassette tape (T-120), and fix with tape.

3. Set the cassette tape in loading state.

4. Put the weight (500g) on the cassette tape.

5. Turn on the power switch.

6. Make the adjustment with the beginning of a T-120 tape.

(T-120)

• Checking

Press the play button to set the playback mode.

500g

Weight to prevent float (500g)

Figure 4-14.

• Checking

1. Set a cassette tape, push the REC button to place the unit in the SP record mode. Now check the tension pole position.

VC-GA56Z

90°

Tension pole adjuster

VC-GH96Z

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.

Sup guide shaft

Tension pole

2.3 ± 0.25

Make the adjustment with the beginning of a T-120 tape.

Figure 4-15.

At left side from the center line

Tension pole adjuster adjusting range

Figure 4-18.

Adjust so that the delta mark of tension pole adjuster is within 90° range (left, right).

4-13. CHECKING AND ADJUSTMENT OF

RECORD/PLAYBACK BACK TENSION

• Remove the cassette housing control assembly.

2.3 ± 0.25

Figure 4-16.

Insert the slotted screwdriver in the tension pole adjuster, and rotate counterclockwise.

At right side from the center line

2.3 ± 0.25

Figure 4-17.

Insert the slotted screwdriver in the tension pole adjuster, and rotate clockwise.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Setting

1. Turn off the power switch.

2. Open the torque cassette meter and fix with tape.

3. Set the cassette tape in loading state.

4. Put the weight (500g) on the cassette torque meter.

5. Turn on the power switch.

500g

Weight to prevent float (500g)

Cassette torque meter

Figure 4-19.

• Checking

1. Push the REC button to place the unit in the SP record mode.

2. At this time ascertain that the back tension is within the setting (36.5 to 52g·cm) by seeing the indication of torque cassette meter.

VC-GA56Z VC-GH96Z

• 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.

Tension arm

Tension spring

Figure 4-20.

4-14. CHECKING THE BRAKE TORQUE

• Checking the brake torque at the supply side

• Checking the brake torque at the take-up side

Torque gauge

Take-up reel disk

CCW: 4.9~13.7mN⋅m (50~140gf⋅cm) CW: 3.9~10.8mN⋅m (40~110gf⋅cm)

CCW

Figure 4-22.

• Remove the cassette housing control assembly.

Torque gauge

CCW

CCW: 2.9~9.8mN⋅m (30~100gf⋅cm) CW: 4.9~13.7mN⋅m (50~140gf⋅cm)

Supply reel disk

Figure 4-21.

• Remove the cassette housing control assembly.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Setting

1. Set a torque gauge to zero on the scale. Place it on the supply reel disk.

2. Switch from the FF mode to the STOP mode.

3. Disconnect the power cord.

• After short-circuiting TP803 and TP802 provided at operation PWB, plug in the power cord.

• Setting

1. Switch from the FF mode to the STOP mode.

2. Disconnect the power cord.

3. Set a torque gauge to zero on the scale. Place it on the take-up reel disk.

• Checking

1. Turn the torque gauge at a rate of about one turn/2 sec in the CCW direction/CW direction so that the reel disk and torque gauge pointer rotates at equal speed and make sure that the value is within the setting (CCW direction: 4.9 to 13.7mN·m (50 to 140gf·cm), CW direction: 3.9 to 10.8 mN·m (40 to 110gf·cm).

2. Adjustment of the brake torque at the supply side and the take-up side

• Unless the supply side brake torque or take-up side brake torque is within the setting, clean the felt surface of reel disk (supply, take-up) brake lever, check again the brake torque.

• If value cannot be set within the setting yet, replace the main brake ass'y or main brake spring.

• Checking

Turn the torque gauge at a rate of about one turn/2 sec in the CW direction/CCW direction with respect to the supply reel disk so that the reel disk and torque gauge pointer rotate at equal speed, and make sure that the value is within the setting (CW direction: 4.9 to 13.7mN·m (50 to 140gf·cm); CCW direction: 2.9 to 9.8mN·m (30 to 100gf·cm).

VC-GA56Z VC-GH96Z

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. Unsolder the PWB fitted to the A/C head.

Notes:

1. When replacing, never touch the head. If you touched, clean with the cleaning liquid.

2. When removing the screw 3, take care so that the spring may out.

Azimuth screw

Spring

Tilt screw

Height screw

section and A/C head front section) (See the figure be-

low.)

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).

Height screw

Left end of A/C head arm gear

Punched line mark on chassis

Figure 4-25.

Note:

1. If the screws 1 and 2 are tighten tentatively too loose, the azimuth and height of A/C head may change when they are finally tightened. Therefore care must be taken.

2. After completion of A/C head be sure to adjust tape running. (Execute the running adjustment by the method described in 4-18.)

Figure 4-23.

• Replacement

1. Solder the removed PWB to the new head assembly.

2. Adjust the height from the A/C head arm (lower surface) to the A/C head plate to 10.8mm with slide calipers. (3 places of azimuth screw section, tilt screw

Solder

New A/C head ass'y

A/C head PWB

Never touch the head

A/C head plate

10.8mm10.8mm

Figure 4-24.

VC-GA56Z VC-GH96Z

4-16. A/C HEAD HEIGHT ROUGH ADJUSTMENT

• Setting

Azimuth screw

Height screw

500g

Weight to prevent float (500g)

Figure 4-26.

Tilt screw

Cassette tape

Mechanism chassis

4-17. HEIGHT ADJUSTMENT OF REVERSE

GUIDE

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 height

Reverse guide

adjusting jig

(a) (b)

Figure 4-28.

2. Rotate counterclockwise the reverse guide height adjustment nut 1/10 turn. (For height adjustment use the reverse guide height adjustment box driver (JiGDRiVER

11055)).

Reverse guide height adjusting jig

Mechanism chassis

Box driver

13.38mm

1. Set the cassette tape in the unit.

2. Press the PLAY button to put the unit in the playback mode.

3. Roughly adjust the height of the A/C head by turning the height screw until the tape is in the position shown below.

A/C head

Tape

0.3mm

Figure 4-27.

• Adjustment

Adjust the height screw visually so that the control head is visible 0.3mm below the bottom of the tape.

CCW

Height adjusting nut

Figure 4-29.

3. Set the tape, and check for tape crease near the reverse guide in the playback mode. If crease is found, turn the reverse guide adjustment nut to remove crease. (As for crease check refer to Figure 4-30.)

500g

Weight to prevent float (500g)

Mechanism chassis

Reverse guide

Capstan motor shaft

Fixing guide

An example of crease near the reverse guide

* Check for crease from the A direction.

Figure 4-30.

VC-GA56Z VC-GH96Z

4-18. ADJUSTMENT OF TAPE DRIVE TRAIN

1. Tape run rough adjustment

1 Remove the cassette housing control assembly. 2 After shortcircuiting 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

CHROMA envelope output (TP201). Set the synchronism of the oscilloscope to EXT. The PB CHROMA signal is to be triggered by the head switching pulse (TP202).

6 Set the alignment tape (VROATSV) to play. (Put a

500g weight on the cassette tape to prevent lift of cassette tape.)

Guide roller

Cassette Tape

500g

Weight of 500g

Figure 4-31.

Notes:

1. Previously set the tracking control in the center position, and adjust the envelop waveform to maximum with X value adjustment nut. Thereby the tape run rough adjustment is facilitated.

2. Especially the outlet side envelope waveform must have higher flatness.

Figure 4-32.

2. Adjustment of A/C head height and azimuth 1 Perform the initial setting of A/C head position by

the method stated in "4-15 Replacement 3".

2 Connect the oscilloscope to the audio output termi-

nal.

3 Using the alignment tape in which 1 kHz linear

audio signal has been recorded, adjust the height screw so as to get max audio output.

4 Using the alignment tape in which 7 kHz linear

audio signal has been recorded, adjust the azimuth screw so as to get max audio output.

5 The adjustment of 3 and 4 twice or three times

repeat, and finally adjust 4.

7 Press the tracking button (+), (–) and change the

envelope waveform from max to min and from min to max. At this time make sure that the envelope waveform changes nearly parallel.

8 Unless the envelope waveform changes nearly

parallel, adjust the height of supply side and takeup side guide roller so that the envelope waveform changes nearly parallel. (For envelop adjustment procedure refer to Figure 4-35.)

9 Turn the tilt screw to remove the tape crease at the

fixing guide flange. Playback the tape and check for tape crease at the fixing guide flange. (1)If there is no tape crease

Turn the tilt screw clockwise so that tape crease appears once at the flange, and then return the tilt screw so that the crease disappears.

(2)If there is tape crease

Turn counterclockwise the tilt screw so that the tape crease disappears. (Reference) If the tilt screw is turned clockwise crease appears at the lower flange.

For X value adjustment Adjust the X value, turning the gear-type screwdriver.

Figure 4-33.

3. Tape run adjustment 1 Connect the oscilloscope to PB CHROMA enve-

lope output test point, set oscilloscope sync to EXT, trigger-input the PB CHROMA signal (head switching pulse).

2 Rough adjustment of X value

Tentatively fix A/C head arm screws 1 and 2 by the method described in 4-15 "Replacement 3". Playback the alignment tape (VROATSV) and shortcircuit TP801 and TP802. As a result the autotracking is automatically cancelled, so that the X value adjustment mode is set. Move the A/C head with the X value adjustment gear driver (JiGDRiVER-6) by the method shown in Figure 4-33, and adjust the A/C head so as to get the maximum envelope waveform. (Note: When the A/C head is adjusted, adjust so that the maximum envelop waveform is obtained nearest the position of initial setting made in 4-15.)

VC-GA56Z VC-GH96Z

3 Next, Press the tracking button (+), (–) and change

the envelope 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 envelope waveform changes nearly parallel.

4 If the tape is lifted or sunk from the helical lead

surface, the PB CHROMA envelope waveform appears as shown in Figure 4-35.

5 Press the tracking button (+), (–) and make sure

that the envelope waveform changes nearly parallel.

6 Finally check tape crease near the reverse guide. If

tape crease is found, remove it as stated in 4-17 "HEIGHT ADJUSTMENT OF REVERSE GUIDE" item 3.

Supply side

PB CHROMA Envelope

CH-1 CH-2

Head switching pulse

Figure 4-34.

4. A/C head X value adjustment 1 Tentatively fix A/C head arm screws 1 and 2 by the

method described in 4-15 "Replacement 3".

2 Playback the alignment tape (VROATSV), and

shortcircuit TP801 and TP802. As a result the autotracking is automatically cancelled, so that the X value adjustment mode is set.

When the tape is below the helical lead.When the tape is above the helical lead.

Take-up side Supply side Take-up side

Adjustment

Supply side guide roller rotated in clockwise direction (lowers guide roller) to flatten envelope.

Take-up side guide roller rotated in clockwise direction (lowers guide roller) to flatten envelope.

Figure 4-35.

3 Move the A/C head with the X value adjustment

gear driver by the method shown in Figure 4-33, and adjust the A/C head so as to get the maximum envelope waveform. (Note: At this time adjust so as to get the maximum envelope waveform nearest the A/C head position which has been set in case of X value rough adjustment as stated in 4-18, 3- 2.)

4 Tighten finally the screws 1 and 2. Be sure to

tighten at first the screw 1 and then the screw 2. Final tightening torque is 0.6N·m (If the screw 2 is tightened first, the X value may deviate.)

5 Adjust the playback switching point (Refer to the

electric adjustment method.)

6 Playback the self-picture-recorded tape, and check

the flatness of envelope waveform and sound.

Supply side guide roller rotated in counterclockwise direction (raises guide roller) to make the tape float above the helical lead. The supply side guide roller is then rotated in the clockwise direction to flatten the envelope.

Take-up side guide roller rotated in counterclockwise direction (raises guide roller) to make the tape float above the helical lead. The take-up side guide roller is then rotated in the clockwise direction to flatten the envelope.

Notes:

When the A/C head X value adjustment is performed, be sure to perform at first X value rough adjustment (refer to 4-18, 3-2).

Figure 4-36.

VC-GA56Z VC-GH96Z

4-19. REPLACEMENT OF THE CAPSTAN D.D.

(DIRECT DRIVE) MOTOR

• 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.

Capstan D.D. motor control PWB

Capstan D.D. motor

Reel belt

Slow Brake Lever

Figure 4-37-1.

4-20. REPLACEMENT OF DRUM D.D. MOTOR

1. Set the ejection mode.

2. Withdraw the main power plug from the socket.

• Removal ( Perform in numerical order.)

1. Disconnect the FFC cable 1.

2. Unscrew the D.D. stator assembly fixing screws 2.

3. Take out the D.D. stator assembly 3.

4. Unscrew the D.D. rotor assembly fixing screws 4.

5. Take out the D.D. rotor assembly 5.

Notes:

1. In removing the D.D. stator assembly, part of the drum earth spring pops out of the pre-load collar. Be careful not to lose it.

2. Install, so that the D.D. rotor ass'y and upper drum ass'y mounting direction check holes align. (Align the upper drum dent with the rotor hole.)

3. Be careful not to damage the upper drum or the video head.

4. Protect the hole elements from shock due to contact with D.D. stator or D.D. rotor ass'y.

5. After installation adjust the playback switching point for adjustment of servo circuit.

D.D. stator ass'y

• Reassembly

1. Taking care so that the capstan shaft does not contact the mechanism chassis, set its position on the mechanism chassis, and then install with the three screws.

2. Install the slow brake lever.

3. Install the reel belt.

Notes:

1. Before installing the capstan D.D. motor, confirm whether an acetate tape (ZTAPEN120020E) is drawn on the back of mechanism chassis.

Stick on acetate tape on the projection part of the chassis.

Capstan Motor Installation posltion.

MechanismChassis from the back.

Figure 4-37-2.

2. After installing the capstan D.D. motor, be sure to rotate the capstan D.D. motor and check the movement.

3. Set the tape, and check for the tape crease near the reverse guide in the playback mode. Adjust the A/C head and azimuth as stated in 4-18 item 2. If crease is found, adjust as stated in 4-17 "HEIGHT ADJUSTMENT OF REVERSE GUIDE".

D.D. rotor ass'y

Upper drum

Figure 4-38.

VC-GA56Z VC-GH96Z

4-21. REPLACING THE UPPER AND LOWER

DRUM ASSEMBLY

• Replacement (Perform in the numerical order)

1 Remove the motor as stated in 4-20 D.D. motor re-

placement.

2 Remove the drum earth brush ass’y 2. 3 Remove the drum base 3 from the upper and lower

drum assembly 1.

[Cares when replacing the drum]

1. Be careful so that the drum earth brush is not lost.

2. Do not touch directly the drum surface.

3. Fit gently the screwdriver to the screws.

4. Since the drum assembly is an extremely precise assembly, it must be handled with utmost care.

5. Make sure that the drum surface is free from dust, dirt and foreign substances.

6. After replacing the drum be sure to perform the tape running adjustment. After that, perform also the electrical adjustment.

• Playback switching point adjustment

• X-position adjustment and check

• Standard and x-3 slow tracking adjustment

7. After replacing the drum clean the drum.

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.

• Pinch drive cam and pinch roller assembling

method.

(Place the following parts in position in numerical order.)

(1)Reverse drive lever 1 (2)Reverse guide spring 2 (3)Reverse guide lever ass’y 3 (4)Reverse guide height adjusting nut 4 (5)Pinch drive cam 5 (6)Pinch roller ass’y 6 (7)Open lever 7

Figure 4-40.

4 3

Figure 4-39.

1Insert Reverse Guide Lever Ass’y

Insert reverse guide lever ass'y

Align here.

2 Insert pinch drive cam

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

Open lever

VC-GA56Z VC-GH96Z

Figure 4-41-1.

2Insert Pinch Roller/Pinch Double Action Lever Ass’y.

Pinch Roller Double Action Lever Ass'y

Phase Matching Point 2

3Insert Open Lever.

Figure 4-41-2.

Figure 4-41-3.

VC-GA56Z VC-GH96Z

4-23. INSTALLING THE SHIFTER

Capstan D.D. motor

Reel pulley

(Bottom side of mechanism chassis)

Figure 4-42.

Insert point 3

Insert point 2

Drum

1. Make sure that the loading gear is at the PhaseMatching 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.

Phase-Matching point 2

Loading gear (T)

Round mark

Sifter

Half round notch

Insert point 4

Insert point 1

Shaft 1

Phase-matching point 1

Shaft 1

Rotation point 2

Shaft 1

Figure 4-43.

Shaft 4

Release point 3

Insert point 5

VC-GA56Z VC-GH96Z

4-24. INSTALLING THE MASTER CAM (at

REAR 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.

E ring (XRESJ30-06000)

Master cam

Fully turn clockwise

Fully turn counterclockwise

Face the wide tooth side ward

Figure 4-44-1.

Note:

See the figure below for the phase matching between the master cam and the casecon drive gear.

3. Finally fix with the E ring.

Master cam

4-25. REPLACEMENT OF LOADING MOTOR

• Removal

Apply grease

No grease

Figure 4-45.

Casecon drive gear

Round mark

When installing the master cam, align the casecon drive gear round mark with the half-round notch of master cam.

Figure 4-44-2.

Half-round notch

• Replacement

Remove the loading motor, and install the replacement loading motor as shown below.

10.2 mm

–0.2

Figure 4-46.

The loading motor pressing-in must be less than 14.7 N (1,500 gf). Adjust the distance between motor and pulley to 10.2

+0.2

mm).

–0.2

VC-GA56Z VC-GH96Z

4-26. ASSEMBLY OF CASSETTE HOUSING

1. Drive Gear and R Drive angle ass’y

Apply grease

Figure 4-47.

MSPRT0381AJFJ

Apply grease

2. Synchro Gear, Drive Gear L and Drive Gear R

Top surface should be free from scratches or soil.

Drive angle

LANGF9592AJFW

Drive gear R

Frame

Figure 4-48.

VC-GA56Z

P201

(TP201~204)

R701

VC-GH96Z

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.

• Instruments required:

• Color TV monitor • Dual-trace oscilloscope

• Audio signal generator • AC milli-voltmeter

• Blank video cassette tape • Alignment tape (VROEFZHS)

• Screwdriver for adjustment • Color bar generator

• RF signal generator

Figure 5-1.

VC-GA56Z VC-GH96Z

SERVO CIRCUIT ADJUSTMENT

5-1 ADJUSTMENT OF HEAD SWITCHING

POINT

Measuring Dual-trace oscilloscope instrument

Mode Playback Cassette Alignment tape (VROEFZHS) Test point VIDEO OUT jack to CH2

TP202 (Sig.)~TP203 (GND) to CH1

Control R701 Head switching point adjust-

ment control

Specification 6.0 ± 0.5H (lines)

1. Remove the front panel and play the alignment tape.

2. Connect a dual-trace oscilloscope to the VIDEO OUT jack and TP202 (Sig.) and TP203 (GND). (Trigger the oscilloscope with the head switching pulse on TP202.)

3. Playback the alignment tape, and then short circuit between TP801 and TP802 on the operation PWB.

4. Adjust R701 so that the leading edge of the head switching pulse is 6.0H (lines) ahead of the vertical sync as shown in Figure 5-2.

5. Cancel the short circuited.

5-2 ADJUSTMENT OF FV (False Vertical

Sync) OF STILL PICTURE

Measuring Color TV monitor instrument

Mode Playback still Cassette Self-recorded tape (SP mode)

(See Note below 2) Control Tracking control buttons(+) or (–) Specification No vertical jitter of picture

1. Play a cassette which was recorded by the unit in SP mode.

2. Press the PAUSE/STILL button to freeze the picture.

3. Look at the monitor screen and adjust (+) or (–) TRACKING buttons so that the vertical jitter of the picture is minimized.

4. Play and freeze the self-recorded tape in EP mode and make sure vertical jitter of the picture is not noticeable.

Notes:

1 The FV goes back to it’s initial state when the unit is put

into the system controller reset mode due to power failure and etc. In this case, preset the FV once again.

2 Self-recorded tape is a cassette whose program was

recorded by the unit being adjusted.

5-3

CHECKING OF OFF TRACK

Measuring Color TV monitor instrument

CH-2 VIDEO OUT

CH-1 HEAD SWITCHING PULSE

6.0 ± 0.5H (lines)

Figure 5-2.

CH-1: 1V/dev 50µsec/dev CH-2: 1V/dev 50µsec/dev

V-sync.

Mode Playback Cassette Self-recorded tape (EP mode)

(See Note below) Control Tracking control buttons(+) or (–) Specification No Poor picture and Hi-Fi sound

1. Play a cassette which was recorded by the unit in EP mode.

2. Short circuit between TP801 and TP802 on the operation PWB to center tracking.

3. Press the tracking buttons (+) or (–) 20 times each to bring the tracking off center. Make sure that:

1) There is nothing unusual on the playback screen.

2) There is nothing unusual in the Hi-Fi sound (for the

Hi-Fi models only).

4. Press the STOP button to quit test mode.

Note:

Self-recorded tape is a cassette whose program was recorded by the unit being adjusted.

VC-GA56Z

VC-GH96Z

MECHANISM OPERATION FLOWCHART

* This flowchart describes the outline of the mechanism’s operation, but does not give its details.

6. MECHANISM OPERATION FLOWCHART AND TROUBLESHOOTING GUIDE

101

1 10111110100010100010000010

001010001

S sensor

Open Close

Mode detection inside

sensor A

1 1 1 0 0 0 0 0 0

Mode detection outside

sensor B

0 1 1 1 1 0 1 1 0

CS/EJ ULD PU1 PU2 VSR PB SLOW FF STOP

Cam graph E

60 120 180 240 300 380

G mechanical timing

Mode check Cam mark

Mode detection outside (D709 SW B)

Mode detection inside (D708 SW A)

0 19.812 81 179 233200 265 282 316 334

10.354 12.812

CA/END CS/EJ

PU1

PU2

VSR

PB SLOW

STOP

Mode detection outside Mode detection inside S sensor

EJ UL PU PU2 VSR PB SLW FF STP

0 1 1

0 0 0

0 0 1

0 0

1 or 0

Loading motor turns in reverse direction and master cam counterclockwise.

CASSETTE INSERTION STOP

Cassette inserting

Fullloading

YES

Unloading

Loading motor starts in normal direction and master cam counter clockwise.

Does mechanism position sw. come off within 2.5 sec.?

Are start/end sensors at low level before cassette insertion ?

Insert cassette.

Double action rack slides.

Drum motor starts.

Tape loading.

Pinch roller comes into contact.

Cam switch is at PB position.

Loading motor stop.

Is drum FG pulse outputted ?

End

Cassette is ejected and loading motor stops.

Start sensor close.

(Cassette is judged caught halfway.)

(Cassette LED or some other part is judged defective.)

VC-GA56Z

VC-GH96Z

STOP REC/PLAY PLAY STILL PLAY VSR VSR PLAY

Capstan motor turns counterclockwise.

Is take-up reel sensor signal outputted ?

End

Press REC/PLAY key.

Picture appears.

Unloading

Set capstan motor to search speed.

End

Press FF key.

PLAY VSF REC/PLAY STOP

Capstan motor turns in reverse direction.

Loading motor turns in counterclockwise direction and master cam clockwise.

Slow brake comes into contact with capstan motor.

Slow brake pressing

Cam switch is at STILL position.

End

Capstan motor stops.

Press STOP key.

Loading motor stops.

End

Stop capstan motor.

YES

Press STILL key.

Pinch roller releasing

Idler swinging

Pinch roller pressing

Loading motor turns clockwise and master cam counterclockwise.

Turn capstan motor in reverse direction.

Turn loading motor counterclockwise.

Cam switch is at VSR position.

Set capstan motor to search speed.

Is take-up reel sensor signal outputted ?

Press REW key.

Release pinch roller.

Cam switch is at PU2 position.

Cam switch is at PU1 position.

Stop loading motor.

Press pinch roller.

Loading motor turns clockwise.

Release the supply auxiliary brake.

Stop loading motor.

End

Unloading

Cam switch is at PB position.

End

Press PLAY Key.

Loading motor turns counterclockwise and master cam clockwise.

Capstan motor turns counterclockwise. PB speed.

YES

VC-GA56Z

VC-GH96Z

STOP FF/REW STOP CASSETTE EJECT

FF/REW STOP

FF/REW operation

Brake function

Turn capstan motor in normal or reverse direction, after the remaining tape has been detected.

Loading motor turns counterclockwise.

Cam switch is at Stop position.

End

Press STOP key.

Press FF/REW key.

Stop capstan motor.

Loading motor stops.

End

Loading motor turns in clockwise and master cam counterclockwise.

4 supply reel pulses outputted ?

Does the take-up reel pulse output two edges ?

Capstan motor turns clockwise.

Loading motor turns clockwise.

Cam switch is at Eject position.

Loading motor stops.

Capstan motor stops.

Press EJECT key.

Tape unloading

Cassette eject

End

Capstan motor turns clockwise.

Capstan motor turns counterclockwise in about 2 seconds.

Stop loading motor.

Capstan motor turns in reverse direction.

Cam switch is at UL position.

YES

VC-GA56Z

VC-GH96Z

MECHANISM TROUBLESHOOTING

1. FF/REW FAILURE (NO TAPE WINDING)

Press FF key.

NO NO NO

YES

YES YES

Is master cam at FF position ?

Does loading motor operate?

Modes changing smoothly through cam switch ?

Loading motor control system in trouble.

Are Vco 23V and Vcc 5V applied ?

Replace the capstan motor.

Replace the idler ass’y.

Replace the reel sensor.

Is voltage applied to loading motor ?

Loading motor is damaged. Replace it.

Voltage supply system in trouble.

Mode sensor system in trouble or master cam malpositioned.

Voltage supply system in trouble.

Does capstan motor turn in FF (or REW) direction ?

Are idler wheel ass’y and reel disk in mesh ?

Is the pulse outputted from reel sensor ?

The cassette tape is presumably damaged.

2. REC/PLAY FAILURE (MODE RELEASE)

NO NO NO

YES

YES YES

Is the master cam at PB position ?

Does loading motor operate ?

Modes changing smoothly through cam switch ?

Loading motor control system in trouble.

Are Vco 23V and Vcc 5V applied ?

Replace the capstan motor.

Replace the idler ass’y.

Replace the reel sensor.

Is voltage applied to loading motor ?

Loading motor is damaged. Replace it.

Voltage supply system in trouble.

Does capstan motor turn ?

Are idler wheel ass'y and reel disk in mesh ?

Is the pulse outputted from reel sensor ?

Check main PWB.

VC-GA56Z

VC-GH96Z

Replace loading motor block.

3. WINDING FAILURE AT VSR 4. UNUSUAL SOUND IN EACH MODE

Is Playback function normal ?

Master cam shifting to VSR position ?

Go to 2. REC/ PLAY FAILURE routine.

Replace idler gear ass’y.

Replace limiter pulley ass’y.

Replace reel sensor.

Go to 2. REC/ PLAY FAILURE routine.

Are idler wheel ass’y and supply reel disk in mesh ?

Is supply reel disk winding torque normal ?

Is pulse outputted from reel sensor?

Check main PWB.

YES

Press REW key.

4-i) Unusual sound in cassette insertion and ejection mode

Is unusal sound heard during cassette control running ?

Unusual sound heard with pinch roller lever going up or down ?

Is unusual sound heard during loading/unloading ?

Check pinch roller drive cam, pinch roller drive lever and reverse guide for their actions. Replace damaged one with new one.

Replace cassette control ass’y.

VC-GA56Z

VC-GH96Z

YES

Replace capstan motor.

4-ii) Unusual sound in FF/REW mode

Is reel disk height as specified ?

Thrust gap found at reel disk ?

Drive system out of contact with any part on main PWB ?

Turn capstan motor by hand. Unusual sound heard ?

Check drive system’s gears for damage. Replace damaged gear with new one.

• Reel disk

• Limiter pulley ass’y

• Idler wheel ass’y

Check reel disk and main chassis. And replace defective parts.

Adjust reel disk height.

Rearrange the parts on main PWB.

VC-GA56Z

VC-GH96Z

7. TROUBLESHOOTING

FLOW CHART NO.1

No power

The fuse blows out even when it is replaced with new one. See FLOW CHART NO.2 <Fuse blown out.>.

YES

Is the fuse good?

Is the normal state restored when once unplugged power cord is plugged again after several seconds?

Check for leak or short-circuiting of primary circuit part. (L901, D901~904, T901, C906, R904, Q901~902 and etc.)

Are AT 5V voltage line normal?

Are AT 44V, AT 23V, AT 12V, AT –24V and filament voltage lines normal?

Check each rectifier circuits and short-circuit of secondary circuit.

Is "H" level applied at pin(1) of IC701?

Check the power failure circuit. (Q705)

FLOW CHART NO.2

Fuse blown out.

Case (1) Case (2)

Check for leak or short-circuiting of primary circuit part. (L901, D901~904, T901, C906, R904, Q901~902 and etc.)

Check for short-circuiting of rectifying diode and circuit in each rectifying circuit of secondary circuit. (D921~928)

FLOW CHART NO.5

The fluorescent display tube fails light up.

Is the supply voltage of 5V feed to pin(8) of IC801?

Check AT 5V line.

Check AT –24V line.

Is the supply voltage of –24V feed to pin(1) of IC801?

Are grid and segment signals supplied to the indication tube (DG801) from the indication tube driver IC (IC801)?

Replace IC801.

Is supply filament voltage feed between pin(1)/(2) and (31)/(32) of the flourescent display tube?

Check power circuit and D952.

Check the periphery of fluorescent indication tube and main block.

Check that the fluorescent indication tube is free from damages such as crack.

YES

Is it possible to confirm signals FIP CS, FIP OE, FIP DATA, and FIP CLK on the pins(2), (3), (5) and (6) of IC801?

Check signal line between IC701 and IC801.

YES

FLOW CHART NO.3

When the output voltage fluctuates.

Check whether the secondary side photocoupler circuit operates normally.

Check the circuit and replace parts. (IC901, IC903, etc.)

YES

Check whether the primary side photocoupler output control functions normally.

Check the circuit and replace parts. (IC901, IC903, Q902, T901 and etc.)

YES

Replace IC901.

FLOW CHART NO.4

When buzz is heard from the vicinity of power circuit.

Check for short-circuiting of circuit and rectifying diode of each rectifying circuit of secondary circuit and check for failure of shunt regulator circuit. (D921~928, IC903, C932 and C933)

VC-GA56Z

VC-GH96Z

FLOW CHART NO.7

No operation is possible from the infrared remote control.

Operation is possible from the VCR, but no operation is possible from the infrared remote control.

Is the supply voltage of 5V feed to pin(3) of remote control receiver?

Check AT 5V lines.

Is "L" pulse sent out pin(1) of receiver when the infrared remote control is activated?

Replace the remote control receiver or replace the remote control transmitter if necessary.

Is there "L" pulse inputted at pin(5) of IC701?

Check line between remote control receiver and pin(5) of IC701.

YES

Replace IC701.

YES

FLOW CHART NO.8

A cassette tape is not taken in.

YES

Check start sensor shutter.

Check line start sensor and all the way up thru to pin(79) of IC701.

Check line pin(9) of IC701 and all the way up thru to pin(11) of IC706.

Check IC706.

Check between IC706 and loading motor.

Replace loading motor.

Is the specified voltage (about 10V) applied at the loading motor terminal when the cassette tape is inserted?

Does pin(13) of IC706 change to about 10V when the cassette tape is inserted?

Does pin(11) of IC706 go to "H" (about 4.7V) level when the cassette tape is inserted?

Does pin(79) of IC701 change from "H" to "L" level when the cassette tape is inserted?

Does start sensor shutter open when the cassette tape is inserted?

FLOW CHART NO.9

A cassette tape is taken in, but ejected at once.

Does the start sensor pulse at pin(79) of IC701 change from "L" to "H" level when the cassette tape is loaded?

Check start sensor and all the way up thru to IC701.

Does the end sensor pulse at pin(85) of IC701 change from "L" to "H" level when the cassette tape is loaded?

Check end sensor and all the way up thru to IC701.

Does the master cam mode shifter operate normally when the cassette tape is loaded?

Check cam switch and all the way up thru to IC701.

Replace IC701.

YES

FLOW CHART NO.6

Does the key switch make good contact, when the cassette tape is inserted?

Check switch contact.

Is there the function control voltage inputted at the pins(87) and (88) of IC701?

Check or place the peripheral circuit of IC701.

YES

Key-in input is not received.

VC-GA56Z

VC-GH96Z

FLOW CHART NO.12

The capstan motor fails to run.

Is the voltage more than about 2.6V DC given out of pin(29) of IC701.

Check IC701.

YES

Is the supply voltage of 5V feed to pin(8) of AC connector?

Check PC 5V line.

Is the voltage more than 2.6V DC sent in pin(4) of AC connector?

Check between the AC connector and all the way up thru to pin(29) of IC701.

Is the voltage at pin(3) of AC connector 1.6~2.7V?

Check between the pin(92) of IC701 and all the way up thru to pin(3) of AC connector.

Is the supply voltage of 12V feed to pin(5) of AC connector?

Check AT 12V line and motor voltage selector circuit.

Replace capstan motor.

YES

FLOW CHART NO.11

No power is turned on.

Does power control(H) signal at pin(4) of IC701 change from "L" to "H" level?

Check IC701.

Does the base of Q951 change from about 5.0V to 4.5V?

Check IC701 and all the way up thru to Q951.

Is 5V sent out of the collector of Q951?

Check Q951 and the AT 5V line.

Check peripheral circuits for poor soldering.

FLOW CHART NO.10

The cassette tape fails to eject.

Does the capstan motor start when the EJECT button is pressed?

See FLOW CHART NO.12.

Does the take-up reel disk turn when the capstan motor is running?

Check reel disk and reel drive unit.

Are pulses applied at pin(2) of IC701 when the take-up reel disk is turning?

Check take-up reel sensor and all the way up thru to IC701.

Is a "H"(about 4.7V) level applied at pin(12) of IC706 when a reel pules has been inputted?

Check pin(90) of IC701.

Is the voltage about 10V sent out of pin(15) of IC706?

Check IC706.

Is the specified voltage applied at the loading motor terminal?

Check between IC706 and all the way up thru to the loading motor.

Dose the loading motor run? Replace loading motor.

Replace cassette cam, gear, etc.

YES

VC-GA56Z

VC-GH96Z

YES

FLOW CHART NO.15

No head switching pulse.

See FLOW CHART NO.13,14.

Is the drum motor rotating?

Is the drum PG signal and drum FG signal present on pins(66) and (65) of IC701, respectively?

Are there drum PG M.M.signal at pin(81) of IC701?

Check C723 and readjust R701 (HEAD SW. POINT control.)

Could be lines between IC706 and IC701.

Check peripheral circuit of IC706.

Are the drum PG and drum FG signals present on pins(7) and (8) of IC706?

Replace IC701.

FLOW CHART NO.13

The drum motor fails to run.

Is the voltage more than about 2.6V DC given out of pin(46) of IC701?

Check IC701.

YES

Check between pin(46) of IC701 and all the way up to pin(2) of IC706.

Is the voltage more than about 2.6V applied at pin(2) of IC706?

YES

Check PC 5V line.

Is the supply voltage of 5V feed to pin(3) of IC706?

Is the supply voltage of 12V feed to pin(21) of IC706?

Check or replace drum motor.

Check AT 12V line.

Check or replace drum motor.

Check line between pin(7) of IC706 and all the way up thru to pin(66) of IC701.

Is drum PG signal given out of pin(66) of IC701?

Is V-H.SW.P pulse given out of pin(23) of IC701?

Check IC701.

Replace IC701.

YES

FLOW CHART NO.14

The drum motor runs only for a few seconds.

Is drum PG signal given out of pin(7) of IC706?

Check pins (4), (5), (6) of IC706 and periperal circuits.

Replace IC706.

YES

VC-GA56Z

VC-GH96Z

FLOW CHART NO.16

Drum servo does not function.

Check peripheral circuit of X701.

Is there 14.318MHz oscillation at pins(37) and (38) of IC701?

In PB mode

YES

In REC mode

Is there drum FG signal at pin(65) of IC701?

Is there V-SYNC signal(reference) at pin(50) of IC701?

YES

Check pin(50) of IC701, C770, C771, R770 and their peripheral circuits.

Check drum FG signal line.

Is there head switching pulse at pin(23) of IC701?

See FLOW CHART NO.15.

YES

Are there drum APC output at pin(34) of IC701 and drum AFC output at pin(32) of IC701?

Replace IC701.

YES

Is there drum control voltage input at pin(2) of IC706?

YES

Is pin(46) of IC701 in high impedance?

YES

Check line between pins(34) and (32) of IC701 and pin(2) of IC706.

Does the IC706 operate normally?

Replace IC701.

Replace drum motor.

VC-GA56Z

VC-GH96Z

1 2

FLOW CHART NO.17

Capstan servo does not function.

Only PB mode inoperative

YES

Only REC mode inoperative

YES

NO NO

Check peripheral circuit of pin(50) of IC701, C770, C771 and R770.

Is there 14.318MHz oscillation at pins (37) and (38) of IC701?

Check peripheral circuit of X701.

YES

Does pin(29) of IC701 operate normally?

Check "1" Check "2"

Check capstan motor unit and/or replace.

Is there capstan AFC and APC at pins(31) and (33) of IC701?

Replace IC701.

Replace A/C head.

YES

Is there capstan AFC signal at pin (31) of IC701?

Is there capstan APC signal at pin (33) of IC701?

YES

Replace IC701.

Is there PB CTL signal at pin (76) of IC701?

Replace IC701.

Is there REC CTL signal at pins(75) and (74) of IC701?

Is there PB CTL signal at pin(76) of IC701?

Does A/C head operate normally?

Adjust the height of the A/C head.

Is there capstan FG signal at pin (67) of IC701?

Check the capstan FG signal line between pin(6) of AC connector and pin (67) of IC701.

Check peripheral circuit of AC connector.

Is there V-SYNC signal(reference) at pin(50) of IC701?

Does REC and/or PB mode inoperate?

VC-GA56Z

VC-GH96Z

Picture E-E does not appear.

Is there picture input signal at pins(30) and (31) of IC201?

YES

1 External input mode Check the line between the rear video input terminal and pin(30) of IC201. 2 U/V tuner mode Check the line between the pin(25) of U/V tuner and pin(31) of IC201.

Is there picture output signal at pin(52) of IC201?

Is there picture input signal at pin(49) of IC701?

Is there picture output signal at pin(47) of IC701 ?

Check the line between pin(52) of IC201 and pin(49) of IC701.

Check the line between pins(63) and (62) of IC201 and pins(56) and (57) of IC701.

Is there picture output signal at emitter of Q251(video output buffer)?

1 Line output: Check Q251 periphery and output terminal periphery. 2 RF output: Check Q251 periphery and tuner pin(6) periphery.

Does 5V input at pins(12), (61) and (90) of IC201?

Does 5V input at pin(51) of IC701?

Check the YC 5V line.

Check the AT 5V line.

Is there serial data clock signal at pins(63) and (62) of IC201?

Check Q251 periphery.

FLOW CHART NO.18

VC-GA56Z

VC-GH96Z

Picture (luminance) record is impossible (E-E mode is possible). Although picture record is possible, color does not appear (E-E mode is possible).

Is luminance signal (approx. 0.5 Vp-p) input to the pin(19) of IC201?

Is luminance signal (approx. 0.3 Vp-p) input to the pin(42) of IC201?

Is luminance signal (approx. 0.5 Vp-p) input to the pin(26) of IC201?

Is luminance signal (approx. 0.5 Vp-p) input to the pin(39) of IC201?

Is luminance signal (approx. 0.5 Vpp) input to the pin(23) of IC201?

YES

Is the luminance signal (approx. 0.5 Vp-p) input and output to the pins(13) and (14) of IC201, respectively?

Check between the pins(18) and (19) of IC201. (Check C206.)

Check between the pins(21) and (42) of IC201. (Check C208.)

Check between the pins(60) and (46) of IC201. (Check C512.)

Check between the pins(58) and (35) of IC201. (Check R505, C512.)

Check between the pins(39) and (26) of IC201. (Check C212.)

Check between the pins(24) and (23) of IC201. (Check C210.)

Is voltage 5V applied to the CCD section power terminal pin(36) of IC201?

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?

Check the pins(13) and (14) of IC201 peripheral circuit. (R201, R202, C203)

SP mode: Is record FM signal (approx. 20 mAp-p) output to the pins(88) and (89) (SP1) and pins(86) and (87) (SP2) of IC201? EP mode: Is record FM signal (approx. 20 mAp-p) output to the IC201 pins(93) and (94) (EP1) and pins(92) and (91) (EP2) of IC201?

Check or replace the cylinder. Is PRE/REC Vcc 5V applied to the pin(90) of IC201?

Is voltage 5V applied to the chroma power terminal pin(61) of IC201?

Is chroma signal (approx. 143 mVp-p/Burst) input into the pin(46) of IC201?

Is chroma signal (approx. 180 mVp-p/Burst) input into the pin(58) of IC201?

Check the periphery of pin(61) of IC201 and YC 5V line.

Check whether the pins(71) and (73) of IC201 oscillate (3.58 MHz)?

Is chroma signal (approx. 180 mVp-p/Burst) output to the pin(35) of IC201?

FLOW CHART NO.19 FLOW CHART NO.20

VC-GA56Z

VC-GH96Z

Playback picture does not appear (E-E mode is possible).

YES

Is V-H.SW.P. applied to the pin(81) of IC201?

Although picture is played back, color does not appear (E-E mode is possible).

Is voltage 5V applied to the CCD section power terminal pin(36) of IC201?

Is control voltage approx. 5V applied normally to the pin(37) from the pin(57) of IC201? Is CCD clock signal (approx. 7.16 MHz/0.5 Vp-p) applied to the pin(44) from the pin(69) of IC201?

Check between the pins(24) and (23) of IC201. (Check C210.)

Is luminance signal (approx. 0.5 Vpp) input to the pin(23) of IC201?

Is luminance signal (approx. 0.5 Vp-p) input to the pin(26) of IC201?

Is luminance signal (approx. 0.5 Vp-p) input to the pin(42) of IC201?

Is luminance signal (approx. 0.5 Vpp) input to the pin(19) of IC201?

Is FM signal (approx. 0.4 Vp-p) input to the pin(78) of IC201?

Is luminance signal (approx. 0.4 Vp-p) input to the pin(79) of IC201?

Is luminance signal (approx. 0.5 Vpp) input to the pin(39) of IC201?

Check between the pin(39) and pin(26) of IC201. (Check C212.)

Check between the pin(21) and pin(42) of IC201. (Check C208.)

Check between the pin(18) and pin(19) of IC201. (Check C206.)

Check between the pin(55) and pin(54) of IC201. (Check C514.)

Check between the pins(79) and (78) of IC201.

Is the luminance signal (approx. 0.25 Vp-p) input and output to the pins(13), (14) and (16) of IC201, respectively?

Is voltage 5V applied to the chroma power terminal pin(61) of IC201?

Is chroma signal (approx. 403 mVp-p/Burst) input into the pin(46) of IC201?

Is chroma signal (approx. 508 mVp-p/Burst) input into the pin(58) of IC201?

Is chroma signal (approx. 286 mVp-p/Burst) input into the pin(54) of IC201?

Check between the pin(60) and pin(46) of IC201. (Check C512.)

Check between the pin(58) and pin(35) of IC201. (Check R505, C515.)

Check the periphery of pin(61) of IC201 and YC 5V line.

Check the periphery of pins(13), (14) and (16) of IC201. (Check C203, R201-2, L201, C205, R203.)

Check whether the pin(71) and pin(73) of IC201 oscillate (3.58 MHz)?

Is chroma signal (approx. 508 mVp-p/Burst) output to the pin(35) of IC201?

Check V-H.SW.P. line.

Replace IC201.

FLOW CHART NO.21 FLOW CHART NO.22

VC-GA56Z

VC-GH96Z

Hi-Fi sound cannot be played back (E-E mode is normal).

Is playback envelope signal output to the pins(29) and (30) of IC651? (300 mVp-p)

YES

Replace IC651.

Is A-H.SW.P input into the pin(27) of IC651?

Check the A-H.SW.P. line from the pin(27) of IC651 to the pin(26) of IC701.

FLOW CHART NO.25

Recording in linear audio is impossible (Hi-Fi E-E mode is normal).

YES

Is audio signal input into the IC201 pin(8)?

Is the pin(99) of IC201 in "L" level?

Does the bias oscillation circuit operate normally?

Is audio signal on which bias signal is superposed output to the pin(4) of IC201?

Check the AA-MH harness and A/C head.

Check the bias oscillation circuit (T601, Q602, Q603).

Check the line between the pin(61) of IC651 to the pin(8) of IC201.

Check the periphery of pin(99) of IC201. (R617)

FLOW CHART NO.26

YES

NO NO NO

FLOW CHART NO.23

Is there signal inputted at each terminal of IC651 as shown in table?

Front input terminal Rear input terminal Tuner audio terminal

L-ch R-ch pin(15) pin(10) pin(14) pin(9)

Check the peripheral circuit of front input terminal. Check the peripheral circuit of rear input terminal.

Is there SIF signal from pin(22) of Tuner?

Line output terminal : Check line ranging from pins(53) and (57) of IC651 to the audio output

terminal.

RF output terminal : Check line ranging from pin(59) of IC651 to pin(2) of tuner (TU101).

Is Sub carrier signal (3.58MHz, about 900m Vp-p) input to pin(45) of IC651?

Is "H" level applied at pin(45) of IC651?

Check line between pin(36) of IC651 and pin(21) of IC701.

Is "L" level applied at pin(36) of IC651?

Check the regulator circuit of Hi-Fi 5V and PC 9V.

Is the voltage 5V applied to pin(40) of IC651, 9V applied to pin(58).

YES

Check line between pins(43), (42) of IC651 and pins(17), (18) of IC701.

Are serial data and clock signal at pins(43), (42) of IC651?

Check line between emitter of Q501 and pin(45) of IC651.

Line output terminal : Is there audio signal outputted at pins(53) and (57) of IC651? RF output terminal : Is there audio signal outputted at pin(59) of IC651?

Replace IC651.

No Hi-Fi E-E sound heard.

pin(48)

Hi-Fi sound cannot be recorded (E-E mode is normal).

YES

Is record FM signal output to the pins(21) to (24) (ch-1)/pins(21) and (22) (ch-2) of IC651?

Check the AH-MZ connector.

Is the pin(29) of IC651 about 3.7V?

Check line of Hi-Fi 5V.

Check Hi-Fi REC CTL line.

Replace IC651.

Is voltage 5V applied to pin(25) of IC651.

FLOW CHART NO.24

Is terminal voltage (REC AGC. ADJ.) pin(37) of IC651 normal?

VC-GA56Z

VC-GH96Z

Linear audio playback is impossible. (Hi-Fi E-E mode is normal).

Are MH-AA harness and playback AMP. peripheral parts normal?

Is the AC head surface clean?

Is AC head height adjusted properly?

Replace the AC head.

Readjust the A/C head height.

Is audio signal output to the pin(11) of IC201?

YES

Is it possible to confirm the audio signal (PB EQ) on pin(100) of IC201?

Replace IC201.

Is pin(99) of IC201 in "L" level?

Check the line between pin(11) of IC201and pin(62) of IC651.

FLOW CHART NO.27

Check the periphery of pin(99) of IC201. (R617)

VC-GA56Z VC-GH96Z

121110987654321

8. BLOCK DIAGRAM

POWER CIRCUIT BLOCK DIAGRAM

VC-GA56Z VC-GH96Z

121110987654321

SYSTEM SERVO BLOCK DIAGRAM

VC-GA56Z VC-GH96Z

121110987654321

SIGNAL FLOW BLOCK DIAGRAM (VC-GA56Z)

E-E signal E-E signal(Audio)

Audio playback signal Audio recording signal

Playback chroma signal Recording chroma signal

Playback luminance signal Recording luminance signal

VC-GA56Z VC-GH96Z

121110987654321

SIGNAL FLOW BLOCK DIAGRAM (VC-GH96Z)

E-E signal E-E signal(Audio)

Audio playback signal Audio recording signal

Playback chroma signal Recording chroma signal

Playback luminance signal Recording luminance signal

VC-GA56Z VC-GH96Z

SCHEMATIC DIAGRAM

IMPORTANT SAFETY NOTICE:

PARTS MARKED WITH " å"

( )

ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE THESE PARTS WITH

SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.

• 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

(4.0)

4.0

Record mode (SP)

. . . .

PB mode (SP)

. . . .

LP mode

. . . .

EP mode

NOTES:

1. The unit of resistance "ohm" is omitted. (K: 1000 ohms M: 1 Meg ohm)

2. All resistors are 1/16 watt, unless otherwise noted.

3. All capacitors µF, unless otherwise noted P: µµF.

• DC voltages are measured with an SSVM placed between points indicated and chassis ground, with the supply voltage of 120V AC and all controls for normal positions.

This circuit diagram is a standard one, actual circuits printed may be subject to change for product

Voltages and waveform are measured as follows:

improvement without prior notice.

87109654321

9. SCHEMATIC DIAGRAM AND PWB FOIL PATTERN

OPERATION CIRCUIT

VC-GA56Z VC-GH96Z

* VOLTAGE MEASUREMENT MODE

PB .......... Parentheses ( )

REC .......Without Parentheses

1716 1918151413121110

654321

VC-GA56Z VC-GH96Z

121110987654321

MAIN CIRCUIT (1)

* VOLTAGE MEASUREMENT MODE

PB .......... Parentheses ( )

REC ....... Without Parentheses

R747

150

1/4W

S703 K0098G E RESET

VC-GA56Z VC-GH96Z

121110987654321

MAIN CIRCUIT (2)

* VOLTAGE MEASUREMENT MODE

PB .......... Parentheses ( )

REC ....... Without Parentheses

VC-GA56Z VC-GH96Z

121110987654321

MAIN CIRCUIT (3)

* VOLTAGE MEASUREMENT MODE

PB .......... Parentheses ( )

REC ....... Without Parentheses

FZ026SCEZZ

VC-GA56Z VC-GH96Z

121110987654321

MAIN CIRCUIT (4)

* VOLTAGE MEASUREMENT MODE

PB .......... Parentheses ( )

REC ....... Without Parentheses

VC-GA56Z VC-GH96Z

121110987654321

PWB FOIL PATTERN

MAIN PWB

Component Side

VC-GA56Z VC-GH96Z

121110987654321

MAIN PWB

Wiring Side

VC-GA56Z VC-GH96Z

OPERATION PWB

Component Side

Wiring Side

87109654321

654321

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

10. PARTS LIST

PARTS REPLACEMENT

Many electrical and mechanical parts in video cassette recorder have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features are identified by " å " and shaded areas in the Replacement Parts Lists and Schematic Diagrams. The use of a substitute replacement part which does not have the same safety characteristics as the factory recommended replacement parts shown in this service manual may create shock, fire or other hazards.

"HOW TO ORDER REPLACEMENT PARTS"

To have your order filled promptly and correctly, please furnish the following informations.

1. MODEL NUMBER 2. REF. NO.

3. PART NO. 4. DESCRIPTION

HOW TO IDENTIFY CHIP

TRANSISTORS AND

DIODES BY ITS MARKING

(1)

(3)

(2)

Fig.1

Package Marking Parts No.

Fig. 1 TR/TS VS2SA1530ARS1 Fig. 1 LE/LF VS2SC3052EF-1 Fig. 1 PD VSKRA104S//-1 Fig. 1 NC VSKRA103S//-1

Marking

MARK★: SPARE PARTS-DELIVERY SECTION

Ref. No. Part No. ★ Description Code

(1) Base/Input (2) Emitter/Ground (3) Collector/Output

PRINTED WIRING BOARD ASSEMBLYS

(NOT REPLACEMENT ITEM)

DUNTK5898TEV1 – Main Unit (VC-GA56Z) — DUNTK5898TEV2 – Main Unit (VC-GH96Z) — DUNTK5846TEV1 – Operation Unit —

DUNTK5898TEV1 (VC-GA56Z) DUNTK5898TEV2 (VC-GH96Z)

MAIN UNIT

TUNER

TU101 RTUNQ0001AJZZ V Tuner BE

INTEGRATED CIRCUITS

IC201 VHiHA8317NF-1 V HA118317NF, Y/C Audio AZ

Processor

IC601 VHiBA7755A/-1 V BA7755A, REC/PB Head AE

IC651 VHiAN3662FB-1 V AN3662FBP, HiFi Audio AZ

Processor (VC-GH96Z) IC701 RH-iX1566GEN2 J IX1566GE AY IC702 VHiPST600K/-1 V PST600K AE IC706 VHiLB1988//-1 V LB1988, Loading/Drum M AQ

Driver IC IC801 VHiMN12511/-1 V MN12511 AQ IC903 VHiKiA431//-1 V KIA431 AE

TRANSISTORS

Q251 VS2SA1530ARS1 V 2SA1530ARS AC Q302 VS2SD1306-E1E V 2SD1306 AD Q306 VS2SA1530ARS1 V 2SA1530ARS AC Q501 VS2SC3052EF-1 V 2SC3052EF AC

(VC-GH96Z) Q602 VS2SC3203Y/-1 V 2SC3203Y AB

or VS2SD1859TV-1 V 2SD1859TV AD or

VS2SC3939SQR V 2SC3939SQR AC Q603 VS2SC3052EF-1 V 2SC3052EF AC Q651 VS2SD1306-E1E V 2SD1306 AD

(VC-GH96Z)

Q652 VS2SD1306-E1E V 2SD1306 AD

(VC-GH96Z)

Q653 VSKRA104S//-1 V KRA104S AA

(VC-GH96Z)

Q654 VSKRC103S//-1 V KRC103S AA

(VC-GH96Z)

Q656 VSKRC103S//-1 V KRC103S AA

(VC-GH96Z) Q704 VS2SA1530ARS1 V 2SA1530ARS AC Q705 VS2SC3052EF-1 V 2SC3052EF AC Q706 VS2SA1530ARS1 V 2SA1530ARS AC Q710 VS2SC3052EF-1 V 2SC3052EF AC Q711 VS2SC3052EF-1 V 2SC3052EF AC

å Q901 VS2SC4518//-1 V 2SC4518 AP å Q902 VS2SC3576AC-1 V 2SC3576AC AC

VS2SD2144S/-1 V 2SD2144S AC Q951 VS2SA1271-Y-1 V 2SA1271-Y AB Q952 VSKRC103S//-1 V KRC103S AA Q963 VS2SA1530ARS1 V 2SA1530ARS AC Q981 VS2SA1271-Y-1 V 2SA1271-Y AB Q982 VSKRC103S//-1 V KRC103S AA Q991 VS2SC3203Y/-1 V 2SC3203Y AB Q992 VS2SA1530ARS1 V 2SA1530ARS AC Q993 VSKRC103S//-1 V KRC103S AA

DISPLAY

DG801 VVK20U26108-1 V Display AW

VVKSTV6SS44-1 V Display AW

DIODES

D351 VHD1SS119//-1 V 1SS119 (VC-GH96Z) AB

RH-DX0475CEZZ V DX0475CE AB D701 RH-PX0270GEZZ J Cassette LED AC D702 VHD1SS119//-1 V 1SS119 AB

RH-DX0475CEZZ V DX0475CE AB D706 RH-PX0252GEZZ J Supply Reel Sensor AF

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

DUNTK5898TEV1 (VC-GA56Z) DUNTK5898TEV2 (VC-GH96Z)

MAIN UNIT

D707 RH-PX0252GEZZ J Takeup Reel Sensor AF D708 RH-PX0238GEZZ J Cam SW A AF D709 RH-PX0238GEZZ J Cam SW B AF D710 VHD1SS119//-1 V 1SS119 AB

or RH-DX0475CEZZ V DX0475CE AB

D712 VHD1SS119//-1 V 1SS119 AB

or RH-DX0475CEZZ V DX0475CE AB

D715 VHD1SS119//-1 V 1SS119 AB

or RH-DX0475CEZZ V DX0475CE AB

D716 VHD1SS119//-1 V 1SS119 AB

or RH-DX0475CEZZ V DX0475CE AB

å D901 VHDRL1N4005-1 V RL1N4005 AC å D902 VHDRL1N4005-1 V RL1N4005 AC å D903 VHDRL1N4005-1 V RL1N4005 AC å D904 VHDRL1N4005-1 V RL1N4005 AC å D905 VHDERA2206/-1 V ERA2206 AC å D907 VHDERA1802/-1 V ERA1802 AB

D909 RH-EX0001AEZZ V Zener Diode AC

å D912 RH-EX0601GEZZ J Zener Diode AA å D913 VHD1SS119//-1 V 1SS119 AB

or RH-DX0475CEZZ V DX0475CE AB

å D921 VHD10ELS4//-1 V 10ELS4 AD å D922 VHD10ELS4//-1 V 10ELS4 AD å D923 VHD15DF1FC/1E V 15DF1FC AD

or VHDRU2YX+++-X V RU2YX AD

å D924 VHD10ELS4//-1 V 10ELS4 AD

å D926 VHD10ELS4//-1 V 10ELS4 AD å D928 VHDD1NS4///-1 V D1NS4 AE

D951 RH-EX0677GEZZ J Zener Diode AB D952 RH-EX0601GEZZ J Zener Diode AA D991 RH-EX0631GEZZ J Zener Diode AA D992 VHD1SS119//-1 V 1SS119 AB

or RH-DX0475CEZZ V DX0475CE AB

å IC901 RH-FX0034CEZZ V PC817 AE

RH-FX0002GEZZ J PS2501-1 AD Q701 RH-PX0233GEZZ J Start Sensor AD Q702 RH-PX0233GEZZ J End Sensor AD

P ACKAGED CIRCUITS

X501 RCRSB0265GEZZ J Crystal AH

RCRSB0204GEZZ J Crystal AG X701 RCRSB0205GEZZ J Crystal AM X702 RCRSB0138GEN1 J Crystal AD

COILS

L101 VP-CF101K0000 V Peaking, 100µH AB L201 VP-XF820K0000 V Peaking, 82µH AB L301 VP-2K101K0000 V Peaking, 100µH A C

VP-MK101K0000 V Peaking, 100µH AB L351 VP-2K101K0000 V Peaking, 100µH A C

or (VC-GH96Z)

VP-MK101K0000 V Peaking, 100µH AB L503 VP-XF120K0000 V Peaking, 12µH AB L602 VP-DF221K0000 V Peaking, 220µH AB

å L901 RCiLF0312GEZZ J Coil, CiLF0312GE AE

RCiLF0014AJZZ V Coil, CiLF0014AJ AG

RCiLF0002AJZZ V Coil, CiLF0002AJ AK

å L921 RCiLP0147GEZZ J Coil, 10µH AC

or RCiLP0161CEZZ V Coil, 10µH AD

å L922 RCiLP0147GEZZ J Coil, 10µH AC

or RCiLP0161CEZZ V Coil, 10µH AD

TRANSFORMERS

T601 RTRNH0098GEZZ J Osc. Transformer AE

or RTRNH0086GEZZ J Osc. T ransformer AD

å T901 RTRNZ0050AJZZ V Transformer AR

CONTROL

R701 RVR-M4343GEZZ J 100k PG MM AB

CAPACITORS

C101 VCKYCY1HB221K V 220p 50V Ceramic AA C102 VCCCCY1HH101J V 100p 50V Ceramic AA

(VC-GA56Z) C103 VCEA9M0JW107M V 100 6.3V Electrolytic AB C105 VCEA0A0JW108M V 1000 6.3V Electrolytic AC C106 VCKYCY1HF103Z V 0.01 50V Ceramic AA C142 VCEA9M0JW107M V 100 6.3V Electrolytic AB

(VC-GH96Z) C143 VCKYCY0JF105Z V 1 6.3V Ceramic AB

(VC-GH96Z) C145 VCEA9M1HW335M V 3.3 50V Electrolytic AB

(VC-GH96Z) C148 VCKYCY1HF103Z V 0.01 50V Ceramic AA

(VC-GH96Z) C160 VCEA9M1HW225M V 2.2 50V Electrolytic AB

(VC-GH96Z) C161 VCKYCY1CB104K V 0.1 16V Ceramic AB

(VC-GH96Z) C162 VCKYCY1CB473K V 0.047 16V Ceramic AA

(VC-GH96Z) C163 VCEA9M1HW474M V 0.47 50V Electrolytic AB

(VC-GH96Z) C164 VCKYCY1CB104K V 0.1 16V Ceramic AB

(VC-GH96Z) C165 VCKYCY1CB104K V 0.1 16V Ceramic AB

(VC-GH96Z) C166 VCKYCY1CB273K V 0.027 16V Ceramic AA

(VC-GH96Z) C167 VCKYCY1CB104K V 0.1 16V Ceramic AB

(VC-GH96Z) C168 VCEA9M1CW106M V 10 16V Electrolytic AB

(VC-GH96Z) C169 VCEA9M1HW105M V 1 50V Electrolytic AB

(VC-GH96Z) C170 VCFYFA1HA124J V 0.12 50V M.Polypro AC

(VC-GH96Z) C201 VCEA9M0JW107M V 100 6.3V Electrolytic AB C202 VCKYCY0JF105Z V 1 6.3V Ceramic AB C203 VCCCCY1HH151J V 150p 50V Ceramic AA C204 VCKYCY1CF104Z V 0.1 16V Ceramic AA C205 VCCCCY1HH470J V 47p 50V Ceramic AA C206 VCKYCY1CF104Z V 0.1 16V Ceramic AA C207 VCKYCY1CF104Z V 0.1 16V Ceramic AA C208 VCEA9M1CW106M V 10 16V Electrolytic AB C209 VCKYCY1CF104Z V 0.1 16V Ceramic AA C210 VCKYCY1CF104Z V 0.1 16V Ceramic AA C211 VCEA9M1HW335M V 3.3 50V Electrolytic AB C212 VCEA9M1CW106M V 10 16V Electrolytic AB C213 VCEA9M1HW225M V 2.2 50V Electrolytic AB C214 VCKYCY0JF105Z V 1 6.3V Ceramic AB C215 VCKYCY0JF105Z V 1 6.3V Ceramic AB C216 VCKYCY0JF105Z V 1 6.3V Ceramic AB C217 VCEA9M0JW107M V 100 6.3V Electrolytic AB C218 VCKYCY0JF105Z V 1 6.3V Ceramic AB C219 VCKYCY1CF104Z V 0.1 16V Ceramic AA C220 VCKYCY1CF104Z V 0.1 16V Ceramic AA C221 VCEA9M1CW106M V 10 16V Electrolytic AB C223 VCKYCY1CF104Z V 0.1 16V Ceramic AA

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

DUNTK5898TEV1 (VC-GA56Z) DUNTK5898TEV2 (VC-GH96Z)

MAIN UNIT

C226 VCEA9M0JW107M V 100 6.3V Electrolytic AB C227 VCKYCY0JF105Z V 1 6.3V Ceramic AB C228 VCEA9M0JW107M V 100 6.3V Electrolytic AB C251 VCEA9M1CW476M V 47 16V Electrolytic AB C252 VCEA0A0JW337M V 330 6.3V Electrolytic AC C254 VCCCCY1HH330J V 33p 50V Ceramic AA C256 VCKYCY1CF104Z V 0.1 16V Ceramic AA C301 VCEA9M0JW107M V 100 6.3V Electrolytic AB C302 VCKYCY0JF105Z V 1 6.3V Ceramic AB C303 VCKYCY1HB102K V 1000p 50V Ceramic AA C304 VCKYCY1HB102K V 1000p 50V Ceramic AA C305 VCKYCY1HB102K V 1000p 50V Ceramic AA C306 VCKYCY1HB102K V 1000p 50V Ceramic AA C307 VCKYCY1HB102K V 1000p 50V Ceramic AA C308 VCKYCY1HB102K V 1000p 50V Ceramic AA C309 VCKYCY1HB102K V 1000p 50V Ceramic AA C310 VCKYCY1HB102K V 1000p 50V Ceramic AA C311 VCKYCY1HF103Z V 0.01 50V Ceramic AA C312 VCKYCY1HF103Z V 0.01 50V Ceramic AA C319 VCCCCY1HH100D V 10p 50V Ceramic AA C320 VCCCCY1HH100D V 10p 50V Ceramic AA C327 VCKYCY1HB102K V 1000p 50V Ceramic AA C329 VCKYCY1HF103Z V 0.01 50V Ceramic AA C351 VCEA9M0JW107M V 100 6.3V Electrolytic AB

(VC-GH96Z)

C352 VCKYCY0JF105Z V 1 6.3V Ceramic AB

(VC-GH96Z)

C353 VCKYCY1HF103Z V 0.01 50V Ceramic AA

(VC-GH96Z)

C354 VCKYCY1HF103Z V 0.01 50V Ceramic AA

(VC-GH96Z)

C356 VCCCCY1HH101J V 100p 50V Ceramic AA

(VC-GH96Z)

C357 VCKYCY1CB104K V 0.1 16V Ceramic AB

(VC-GH96Z)

C358 VCKYCY1CB104K V 0.1 16V Ceramic AB

(VC-GH96Z) C501 VCEA9M0JW107M V 100 6.3V Electrolytic AB C502 VCKYCY0JF105Z V 1 6.3V Ceramic AB C503 VCKYCY1HB472K V 4700p 50V Ceramic AA C504 VCEA9M1HW225M V 2.2 50V Electrolytic AB C505 VCKYCY1EB223K V 0.022 25V Ceramic AA C506 VCEA9M1HW474M V 0.47 50V Electrolytic AB C507 VCKYCY1CF104Z V 0.1 16V Ceramic AA C508 VCEA9M1HW475M V 4.7 50V Electrolytic AB C509 VCKYCY1HF103Z V 0.01 50V Ceramic AA C512 VCKYCY1HF103Z V 0.01 50V Ceramic AA C513 VCKYCY1HF103Z V 0.01 50V Ceramic AA C514 VCKYCY1HF103Z V 0.01 50V Ceramic AA C515 VCKYCY1HB331K V 330p 50V Ceramic AA C517 VCEA9M1HW335M V 3.3 50V Electrolytic AB C518 VCKYCY1HF333Z V 0.033 50V Ceramic AA C521 VCCCCY1HH5R0C V 5p 50V Ceramic AA C523 VCKYCY1HF103Z V 0.01 50V Ceramic AA C524 VCKYCY1HF103Z V 0.01 50V Ceramic AA

(VC-GH96Z) C601 VCEA9M0JW107M V 100 6.3V Electrolytic AB C602 VCKYCY1EB103K V 0.01 25V Ceramic AA C603 VCEA9M1CW106M V 10 16V Electrolytic AB C604 VCKYCY1HB821K V 820p 50V Ceramic AA C605 VCEA9M1CW106M V 10 16V Electrolytic AB C606 VCEA9M1HW475M V 4.7 50V Electrolytic AB C607 VCEA9M1HW475M V 4.7 50V Electrolytic AB C608 VCEA9M0JW226M V 22 6.3V Electrolytic AB C609 VCEA9M1HW475M V 4.7 50V Electrolytic AB C610 VCKYCY1CF104Z V 0.1 16V Ceramic AA

(VC-GA56Z) C611 VCKYCY1CF104Z V 0.1 16V Ceramic AA C612 VCKYCY1CF104Z V 0.1 16V Ceramic AA

(VC-GA56Z)

C613 VCKYCY1EB183K V 0.018 25V Ceramic AA

(VC-GA56Z) C614 VCKYCY1HB222K V 2200p 50V Ceramic AA C617 VCEA9M1CW476M V 47 16V Electrolytic AB C618 VCKYCY1EB103K V 0.01 25V Ceramic AA C619 VCKYCY1EB103K V 0.01 25V Ceramic AA C620 VCEA9M1CW106M V 10 16V Electrolytic AB C621 VCQPYA2AA562J V 5600p 100V Mylar AC C622 VCKYCY1HB222K V 2200p 50V Ceramic AA C630 VCKYCY0JF105Z V 1 6.3V Ceramic AB C651 VCEA9M1HW475M V 4.7 50V Electrolytic AB

(VC-GH96Z) C652 VCEA9M0JW336M V 33 6.3V Electrolytic AB

(VC-GH96Z) C653 VCEA9M1CW106M V 10 16V Electrolytic AB

(VC-GH96Z) C654 VCEA9M1CW106M V 10 16V Electrolytic AB

(VC-GH96Z) C655 VCEA9M1CW106M V 10 16V Electrolytic AB

(VC-GH96Z) C657 VCKYCY1EB153K V 0.015 25V Ceramic AA

(VC-GH96Z) C661 VCEA9M1HW475M V 4.7 50V Electrolytic AB

(VC-GH96Z) C662 VCEA9M0JW336M V 33 6.3V Electrolytic AB

(VC-GH96Z) C663 VCEA9M1CW106M V 10 16V Electrolytic AB

(VC-GH96Z) C664 VCEA9M1CW106M V 10 16V Electrolytic AB

(VC-GH96Z) C665 VCEA9M1CW106M V 10 16V Electrolytic AB

(VC-GH96Z) C667 VCKYCY1EB153K V 0.015 25V Ceramic AA

(VC-GH96Z) C670 VCEA9M0JW107M V 100 6.3V Electrolytic AB

(VC-GH96Z) C671 VCEA9M1CW107M V 100 16V Electrolytic AB

(VC-GH96Z) C672 VCKYCY1CF224Z V 0.22 16V Ceramic AA

(VC-GH96Z) C673 VCEA9M0JW226M V 22 6.3V Electrolytic AB

(VC-GH96Z) C674 VCKYCY1CF224Z V 0.22 16V Ceramic AA

(VC-GH96Z) C675 VCKYCY1CF104Z V 0.1 16V Ceramic AA

(VC-GH96Z) C677 VCEA9M1CW106M V 10 16V Electrolytic AB

(VC-GH96Z) C678 VCKYCY1HF103Z V 0.01 50V Ceramic AA

(VC-GH96Z) C679 VCKYCY1CF224Z V 0.22 16V Ceramic AA

(VC-GH96Z) C680 VCKYCY0JF105Z V 1 6.3V Ceramic AB

(VC-GH96Z) C681 VCKYCY1HF103Z V 0.01 50V Ceramic AA

(VC-GH96Z) C682 VCKYCY0JF105Z V 1 6.3V Ceramic AB

(VC-GH96Z) C684 VCCCCY1HH560J V 56p 50V Ceramic AA

(VC-GH96Z) C685 VCCCCY1HH560J V 56p 50V Ceramic AA

(VC-GH96Z) C701 VCKYCY1HF103Z V 0.01 50V Ceramic AA C702 VCKYCY1HF103Z V 0.01 50V Ceramic AA C703 VCEA9M1HW105M V 1 50V Electrolytic AB C704 VCKYCY0JF105Z V 1 6.3V Ceramic AB C705 VCKYCY1HF103Z V 0.01 50V Ceramic AA C706 VCKYCY1HF103Z V 0.01 50V Ceramic AA C707 VCCCCY1HH120J V 12p 50V Ceramic AA C708 VCCCCY1HH150J V 15p 50V Ceramic AA C709 VCCCCY1HH150J V 15p 50V Ceramic AA C710 VCCCCY1HH180J V 18p 50V Ceramic AA C711 VCKYCY1HB102K V 1000p 50V Ceramic AA C712 VCKYCY1HB102K V 1000p 50V Ceramic AA C713 VCKYCY1HB102K V 1000p 50V Ceramic AA

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

DUNTK5898TEV1 (VC-GA56Z) DUNTK5898TEV2 (VC-GH96Z)

MAIN UNIT

C714 VCKYCY1CF104Z V 0.1 16V Ceramic AA C715 VCEA9M0JW226M V 22 6.3V Electrolytic AB C717 VCKYCY1HB221K V 220p 50V Ceramic AA C718 VCKYCY1CF104Z V 0.1 16V Ceramic AA C719 VCKYCY1EB103K V 0.01 25V Ceramic AA C722 VCKYCY1HF103Z V 0.01 50V Ceramic AA C723 VCKYCY1HF103Z V 0.01 50V Ceramic AA C724 VCKYCY1HF103Z V 0.01 50V Ceramic AA C726 VCKYCY1HF103Z V 0.01 50V Ceramic AA

C727 VCKYCY1HF103Z V 0.01 50V Ceramic AA C729 VCKYCY1HF103Z V 0.01 50V Ceramic AA C730 VCKYCY1HF103Z V 0.01 50V Ceramic AA C736 VCKYCY1HF103Z V 0.01 50V Ceramic AA C737 VCKYCY1HF103Z V 0.01 50V Ceramic AA C738 VCKYCY1HB102K V 1000p 50V Ceramic AA C739 VCKYCY1HB102K V 1000p 50V Ceramic AA C743 VCKYCY0JF105Z V 1 6.3V Ceramic AB C744 VCEA2A0JW108M V 1000 6.3V Electrolytic AB C745 RC-EZ0380GEZZ 1 5.5V Electrolytic AM C747 VCKYCY1HF103Z V 0.01 50V Ceramic AA

C748 VCKYCY1HF103Z V 0.01 50V Ceramic AA C750 VCKYCY1HF103Z V 0.01 50V Ceramic AA C751 VCKYCY1HF103Z V 0.01 50V Ceramic AA C752 VCEA2A1VW107M V 100 35V Electrolytic AC C754 VCKYCY1EB103K V 0.01 25V Ceramic AA C755 VCKYCY1HF473Z V 0.047 50V Ceramic AA C756 VCKYCY1HF473Z V 0.047 50V Ceramic AA C759 VCEA9M0JW226M V 22 6.3V Electrolytic AB C760 VCEA9M0JW107M V 100 6.3V Electrolytic AB C763 VCEA9M0JW476M V 47 6.3V Electrolytic AB C764 VCKYCY1HF103Z V 0.01 50V Ceramic AA C767 VCKYCY1HF103Z V 0.01 50V Ceramic AA C770 VCCCCY1HH101J V 100p 50V Ceramic AA C771 VCE9EM1HW105M V 1 50V Elect. (N.P) AB C774 VCKYCY1CF104Z V 0.1 16V Ceramic AA C775 VCEA9M0JW107M V 100 6.3V Electrolytic AB C776 VCKYCY0JF105Z V 1 6.3V Ceramic AB C783 VCKYCY0JF105Z V 1 6.3V Ceramic AB C784 VCKYCY1HB102K V 1000p 50V Ceramic AA C785 VCEA9M0JW476M V 47 6.3V Electrolytic AB C786 VCKYCY1CF334Z V 0.33 16V Ceramic AA C787 VCFYFA1HU474J V 0.47 50V M.Polypro AC C789 VCKYCY1EB103K V 0.01 25V Ceramic AA C790 VCKYCY1HB392K V 3900p 50V Ceramic AA C791 VCKYCY1HB392K V 3900p 50V Ceramic AA C792 VCEA9M1CW476M V 47 16V Electrolytic AB C794 VCKYCY1EB223K V 0.022 25V Ceramic AA C795 VCKYCY1EB223K V 0.022 25V Ceramic AA C797 VCKYCY1CF104Z V 0.1 16V Ceramic AA C798 VCKYCY1EB223K V 0.022 25V Ceramic AA C801 VCKYCY1HF103Z V 0.01 50V Ceramic AA C802 VCEA9M0JW476M V 47 6.3V Electrolytic AB C803 VCKYCY1HF103Z V 0.01 50V Ceramic AA C804 VCEA9M0JW476M V 47 6.3V Electrolytic AB C805 VCKYCY1HF103Z V 0.01 50V Ceramic AA

å C901 RC-FZ026SCEZZ V 0.01 å C903 RC-KZ0106GEZZ J 3300p å C906 RC-EZ0437CEZZ V 68 400V Electrolytic AE å C907 RC-KZ0029CEZZ V 0.01 500V Ceramic AC å C908 RC-KZ0112CEZZ V 100p 1kV Ceramic AB å C910 VCKYCY1HB332K V 3300p 50V Ceramic AA å C911 VCQYTA1HM472K V 4700p 50V Mylar AB å C915 VCKYCY1HB221K V 220p 50V Ceramic AA å C916 VCKYCY1HF333Z V 0.033 50V Ceramic AA å C921 VCEA0A2AW106M V 10 100V Electrolytic AC å C922 VCEA0A1VW477M V 470 35V Electrolytic AB å C923 VCEA0A1VW477M V 470 35V Electrolytic AB å C924 VCEA0A1HW226M V 22 50V Electrolytic AB å C925 VCEA0A0JW108M V 1000 6.3V Electrolytic AC

(VC-GH96Z)

AC250V AC250V

M.Polypro AE Ceramic AC

å C926 VCEA0A0JW107M V 100 6.3V Electrolytic AB å C927 VCKYCY1HF103Z V 0.01 50V Ceramic AA å C928 VCEA0A1CW337M V 330 16V Electrolytic AC å C929 VCEA0A0JW108M V 1000 6.3V Electrolytic AC

C932 VCQYTA1HM104J V 0.1 50V Mylar AA C933 VCQYTA1HM104J V 0.1 50V Mylar AA C941 VCEA9A1CW476M V 47 16V Electrolytic AB C942 VCEA9M0JW476M V 47 6.3V Electrolytic AB C951 VCKYCY1HF333Z V 0.033 50V Ceramic AA C953 VCEA9M1CW106M V 10 16V Electrolytic AB C954 VCEA9M1HW105M V 1 50V Electrolytic AB C971 VCEA9M0JW226M V 22 6.3V Electrolytic AB C981 VCEA9M0JW476M V 47 6.3V Electrolytic AB C985 VCEA9M0JW476M V 47 6.3V Electrolytic AB C991 VCEA9M1CW476M V 47 16V Electrolytic AB

RESISTORS

RJ102 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

(VC-GH96Z)

RJ103 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

(VC-GA56Z) RJ301 VRS-CY1JF000J V 0 1/16W Metal Oxide AA RJ302 VRS-CY1JF000J V 0 1/16W Metal Oxide AA RJ303 VRS-CY1JF000J V 0 1/16W Metal Oxide AA RJ304 VRS-CY1JF000J V 0 1/16W Metal Oxide AA RJ305 VRS-CY1JF000J V 0 1/16W Metal Oxide AA RJ501 VRS-CY1JF000J V 0 1/16W Metal Oxide AA RJ502 VRS-CY1JF000J V 0 1/16W Metal Oxide AA R16 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

(VC-GH96Z) R36 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

(VC-GH96Z) R101 VRS-CY1JF470J V 47 1/16W Metal Oxide AA R103 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R104 VRS-CY1JF000J V 0 1/16W Metal Oxide AA R105 VRS-CY1JF000J V 0 1/16W Metal Oxide AA R107 VRS-CY1JF822J V 8.2k 1/16W Metal Oxide AA

(VC-GH96Z) R108 VRS-CY1JF822J V 8.2k 1/16W Metal Oxide AA

(VC-GA56Z) R111 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA R112 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA R145 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

(VC-GH96Z) R201 VRS-CY1JF682J V 6.8k 1/16W Metal Oxide AA R202 VRS-CY1JF182J V 1.8k 1/16W Metal Oxide AA R203 VRS-CY1JF682J V 6.8k 1/16W Metal Oxide AA R207 VRS-CY1JF101J V 100 1/16W Metal Oxide AA R211 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA R212 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA R225 VRS-CY1JF750J V 75 1/16W Metal Oxide AA R226 VRS-CY1JF101J V 100 1/16W Metal Oxide AA R227 VRS-CY1JF750J V 75 1/16W Metal Oxide AA R228 VRS-CY1JF750J V 75 1/16W Metal Oxide AA R229 VRD-RA2BE101J V 100 1/8W Carbon AB R252 VRD-RA2EE331J V 330 1/4W Carbon AA R253 VRS-CY1JF101J V 100 1/16W Metal Oxide AA R254 VRS-CY1JF101J V 100 1/16W Metal Oxide AA R256 VRS-CY1JF183J V 18k 1/16W Metal Oxide AA R301 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R313 VRS-CY1JF332J V 3.3k 1/16W Metal Oxide AA R315 VRS-CY1JF152J V 1.5k 1/16W Metal Oxide AA R330 VRS-CY1JF222J V 2.2k 1/16W Metal Oxide AA R331 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R351 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA

(VC-GH96Z) R501 VRS-CY1JF681J V 680 1/16W Metal Oxide AA R502 VRS-CY1JF273J V 27k 1/16W Metal Oxide AA R505 VRS-CY1JF000J V 0 1/16W Metal Oxide AA R511 VRS-CY1JF272J V 2.7k 1/16W Metal Oxide AA

(VC-GH96Z) R512 VRS-CY1JF272J V 2.7k 1/16W Metal Oxide AA

(VC-GH96Z) R520 VRS-CY1JF154J V 150k 1/16W Metal Oxide AA

(VC-GH96Z)

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

DUNTK5898TEV1 (VC-GA56Z) DUNTK5898TEV2 (VC-GH96Z)

MAIN UNIT

R521 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA

(VC-GH96Z) R601 VRS-CY1JF822J V 8.2k 1/16W Metal Oxide AA R602 VRS-CY1JF274J V 270k 1/16W Metal Oxide AA R603 VRS-CY1JF221J V 220 1/16W Metal Oxide AA R604 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R605 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA R606 VRS-CY1JF273J V 27k 1/16W Metal Oxide AA R607 VRS-CY1JF561J V 560 1/16W Metal Oxide AA R608 VRS-CY1JF472J V 4.7k 1/16W Metal Oxide AA R609 VRS-CY1JF333J V 33k 1/16W Metal Oxide AA

(VC-GA56Z) R610 VRS-CY1JF183J V 18k 1/16W Metal Oxide AA

(VC-GA56Z) R611 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA

(VC-GH96Z) R611 VRS-CY1JF393J V 39k 1/16W Metal Oxide AA

(VC-GA56Z) R612 VRS-CY1JF123J V 12k 1/16W Metal Oxide AA

(VC-GA56Z) R612 VRS-CY1JF823J V 82k 1/16W Metal Oxide AA

(VC-GH96Z) R613 VRS-CY1JF393J V 39k 1/16W Metal Oxide AA

(VC-GA56Z) R614 VRS-CY1JF123J V 12k 1/16W Metal Oxide AA

(VC-GA56Z) R615 VRS-CY1JF472J V 4.7k 1/16W Metal Oxide AA

(VC-GA56Z) R616 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA

(VC-GA56Z) R617 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA

(VC-GH96Z) R618 VRS-CY1JF563J V 56k 1/16W Metal Oxide AA R619 VRS-CY1JF470J V 47 1/16W Metal Oxide AA R620 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA R621 VRD-RA2EE4R7J V 4.7 1/4W Carbon AA R623 VRS-CY1JF393J V 39k 1/16W Metal Oxide AA R624 VRS-CY1JF224J V 220k 1/16W Metal Oxide AA R626 VRS-CY1JF000J V 0 1/16W Metal Oxide AA R627 VRS-CY1JF332J V 3.3k 1/16W Metal Oxide AA R628 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

(VC-GA56Z) R653 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA

(VC-GH96Z) R654 VRS-CY1JF682J V 6.8k 1/16W Metal Oxide AA

(VC-GH96Z) R655 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA

(VC-GH96Z) R656 VRS-CY1JF682J V 6.8k 1/16W Metal Oxide AA

(VC-GH96Z) R657 VRS-CY1JF101J V 100 1/16W Metal Oxide AA

(VC-GH96Z) R658 VRS-CY1JF223J V 22k 1/16W Metal Oxide AA

(VC-GH96Z) R659 VRD-RA2BE681J V 680 1/8W Carbon AA

(VC-GH96Z) R663 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA

(VC-GH96Z) R664 VRS-CY1JF682J V 6.8k 1/16W Metal Oxide AA

(VC-GH96Z) R665 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA

(VC-GH96Z) R666 VRS-CY1JF682J V 6.8k 1/16W Metal Oxide AA

(VC-GH96Z) R667 VRD-RA2BE101J V 100 1/8W Carbon AB

(VC-GH96Z) R668 VRS-CY1JF223J V 22k 1/16W Metal Oxide AA

(VC-GH96Z) R669 VRD-RA2BE681J V 680 1/8W Carbon AA

(VC-GH96Z)

R670 VRS-CY1JF273J V 27k 1/16W Metal Oxide AA

(VC-GH96Z)

R671 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA

(VC-GH96Z)

R672 VRS-CY1JF151J V 150 1/16W Metal Oxide AA

(VC-GH96Z)

R673 VRS-CY1JF151J V 150 1/16W Metal Oxide AA

(VC-GH96Z)

R674 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA

(VC-GH96Z)

R675 VRS-CY1JF183J V 18k 1/16W Metal Oxide AA

(VC-GH96Z)

R676 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA

(VC-GH96Z)

R677 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA

(VC-GH96Z)

R685 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA

(VC-GH96Z)

R686 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA

(VC-GH96Z)

R690 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

(VC-GH96Z) R703 VRD-RA2BE102J V 1k 1/8W Carbon AA R704 VRD-RA2BE102J V 1k 1/8W Carbon AA R705 VRD-RA2BE102J V 1k 1/8W Carbon AA R706 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA R707 VRS-CY1JF153J V 15k 1/16W Metal Oxide AA R708 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R709 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA

(VC-GH96Z) R710 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R711 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R712 VRS-CY1JF223J V 22k 1/16W Metal Oxide AA R713 VRS-CY1JF564J V 560k 1/16W Metal Oxide AA R714 VRS-CY1JF332J V 3.3k 1/16W Metal Oxide AA R715 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R716 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R717 VRS-CY1JF681J V 680 1/16W Metal Oxide AA R718 VRS-CY1JF182J V 1.8k 1/16W Metal Oxide AA R719 VRD-RA2BE102J V 1k 1/8W Carbon AA R720 VRS-CY1JF822J V 8.2k 1/16W Metal Oxide AA

(VC-GA56Z) R722 VRD-CY1JF102J V 1k 1/16W Metal Oxide AA R723 VRS-CY1JF000J V 0 1/16W Metal Oxide AA R725 VRD-RA2BE104J V 100k 1/8W Carbon AA

(VC-GA56Z) R725 VRD-RA2BE183J V 18k 1/8W Carbon AA

(VC-GH96Z) R726 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R727 VRD-RA2EE151J V 150 1/4W Carbon AA R728 VRS-CY1JF182J V 1.8k 1/16W Metal Oxide AA R729 VRD-RA2BE154J V 150k 1/8W Carbon AA R731 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R732 VRS-CY1JF223J V 22k 1/16W Metal Oxide AA R734 VRD-RA2BE223J V 22k 1/8W Carbon AA R735 VRS-CY1JF563J V 56k 1/16W Metal Oxide AA R736 VRS-CY1JF123J V 12k 1/16W Metal Oxide AA R737 VRS-CY1JF000J V 0 1/16W Metal Oxide AA R738 VRD-RA2BE104J V 100k 1/8W Carbon AA R739 VRD-RA2BE271J V 270 1/8W Carbon AA R740 VRD-RA2BE104J V 100k 1/8W Carbon AA R741 VRD-RA2BE271J V 270 1/8W Carbon AA R742 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R743 VRD-RA2BE391J V 390 1/8W Carbon AA R744 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R745 VRD-RA2BE391J V 390 1/8W Carbon AA R746 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R747 VRD-RA2EE151J V 150 1/4W Carbon AA R748 VRS-CY1JF1R0J V 1 1/16W Metal Oxide AA R749 VRD-RM2HD271J V 270 1/2W Carbon AA R750 VRS-CY1JF474J V 470k 1/16W Metal Oxide AA R751 VRD-RA2BE123J V 12k 1/8W Carbon AA R752 VRD-RA2BE123J V 12k 1/8W Carbon AA R754 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R756 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

DUNTK5898TEV1 (VC-GA56Z) DUNTK5898TEV2 (VC-GH96Z)

MAIN UNIT

R760 VRS-CY1JF104J V 100k 1/16W Metal Oxide AA R761 VRS-CY1JF104J V 100k 1/16W Metal Oxide AA R762 VRS-CY1JF123J V 12k 1/16W Metal Oxide AA R763 VRS-CY1JF563J V 56k 1/16W Metal Oxide AA R764 VRS-CY1JF183J V 18k 1/16W Metal Oxide AA R765 VRS-CY1JF223J V 22k 1/16W Metal Oxide AA R767 VRD-RA2BE102J V 1k 1/8W Carbon AA R768 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R769 VRS-CY1JF472J V 4.7k 1/16W Metal Oxide AA R770 VRS-CY1JF332J V 3.3k 1/16W Metal Oxide AA R772 VRS-CY1JF822J V 8.2k 1/16W Metal Oxide AA

(VC-GA56Z) R773 VRS-CY1JF222J V 2.2k 1/16W Metal Oxide AA R774 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA

(VC-GH96Z) R776 VRS-CY1JF681J V 680 1/16W Metal Oxide AA R777 VRS-CY1JF681J V 680 1/16W Metal Oxide AA R778 VRS-CY1JF104J V 100k 1/16W Metal Oxide AA R779 VRD-RA2BE103J V 10k 1/8W Carbon AA R780 VRD-RA2BE103J V 10k 1/8W Carbon AA R781 VRD-RA2BE103J V 10k 1/8W Carbon AA R782 VRS-CY1JF154J V 150k 1/16W Metal Oxide AA R783 VRS-CY1JF392J V 3.9k 1/16W Metal Oxide AA R784 VRS-CY1JF104J V 100k 1/16W Metal Oxide AA R785 VRS-CY1JF105J V 1M 1/16W Metal Oxide AA R786 VRS-CY1JF564J V 560k 1/16W Metal Oxide AA R787 VRD-RM2HD1R0J V 1 1/2W Carbon AA R788 VRD-RM2HD1R0J V 1 1/2W Carbon AA R789 VRS-CY1JF822J V 8.2k 1/16W Metal Oxide AA R791 VRS-CY1JF1R0J V 1 1/16W Metal Oxide AA R792 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R793 VRS-CY1JF154J V 150k 1/16W Metal Oxide AA R794 VRS-CY1JF332J V 3.3k 1/16W Metal Oxide AA R795 VRD-RA2BE105J V 1M 1/8W Carbon AA R796 VRD-RA2BE103J V 10k 1/8W Carbon AA R798 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R813 VRD-RA2BE183J V 18k 1/8W Carbon AA R814 VRS-CY1JF272J V 2.7k 1/16W Metal Oxide AA R815 VRD-RA2BE332J V 3.3k 1/8W Carbon AA R821 VRS-CY1JF183J V 18k 1/16W Metal Oxide AA R822 VRS-CY1JF272J V 2.7k 1/16W Metal Oxide AA R823 VRD-RA2BE332J V 3.3k 1/8W Carbon AA R824 VRS-CY1JF472J V 4.7k 1/16W Metal Oxide AA R825 VRS-CY1JF822J V 8.2k 1/16W Metal Oxide AA R826 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R831 VRD-RA2BE101J V 100 1/8W Carbon AB R832 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R833 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R841 VRD-RA2BE183J V 18k 1/8W Carbon AA R842 VRD-RA2BE103J V 10k 1/8W Carbon AA R843 VRD-RA2BE474J V 470k 1/8W Carbon AA R845 VRD-RA2BE474J V 470k 1/8W Carbon AA R846 VRD-RA2BE103J V 10k 1/8W Carbon AA R847 VRD-RA2BE474J V 470k 1/8W Carbon AA R848 VRD-RA2BE474J V 470k 1/8W Carbon AA R856 VRD-RA2BE102J V 1k 1/8W Carbon AA

(VC-GH96Z) R857 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R858 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R859 VRD-RA2BE471J V 470 1/8W Carbon AA R860 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA

å R904 RR-SZ0007GEZZ V 68k 2W AB å R905 VRD-RM2HD154J V 150k 1/2W Carbon AA å R910 VRD-RM2HD390J V 39 1/2W Carbon AA å R912 VRD-RM2HD390J V 39 1/2W Carbon AA å R917 VRS-CY1JF123J V 12k 1/16W Metal Oxide AA å R918 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

R920 VRD-RM2HD154J V 150k 1/2W Carbon AA

å R921 VRS-CY1JF100J V 10 1/16W Metal Oxide AA å R922 VRS-CY1JF000J V 0 1/16W Metal Oxide AA

R923 VRD-RA2BE102J V 1k 1/8W Carbon AA

R924 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R930 VRD-RA2BE332J V 3.3k 1/8W Carbon AA R931 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R932 VRD-RA2BE101J V 100 1/8W Carbon AB R933 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R934 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R937 VRS-VV3DB270J V 27 2W Metal Ocide AA R951 VRD-RM2HD152J V 1.5k 1/2W Carbon AA R952 VRS-CY1JF223J V 22k 1/16W Metal Oxide AA R954 VRS-CY1JF561J V 560 1/16W Metal Oxide AA R955 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R957 VRS-CY1JF472J V 4.7k 1/16W Metal Oxide AA R973 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R974 VRD-RA2BE222J V 2.2k 1/8W Carbon AA R975 VRD-RA2BE473J V 47k 1/8W Carbon AA R981 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R982 VRS-CY1JF561J V 560 1/16W Metal Oxide AA R983 VRS-CY1JF000J V 0 1/16W Metal Oxide AA R991 VRS-CY1JF102J V 1k 1/16W Metal Oxide AA R992 VRS-CY1JF222J V 2.2k 1/16W Metal Oxide AA R993 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA

SWITCHES

S101 QSW-S0004AJZZ V RF Conv. SW AF S701 QSW-F0042AJZZ V REC Tip SW AG S703 QSW-K0098GEZZ J Switch, Reset AF S801 QSW-K0086GEZZ J Switch, Power AC S802 QSW-K0086GEZZ J Switch, Eject AC S803 QSW-K0086GEZZ J Switch, Set/S-Pic. AC S804 QSW-K0086GEZZ J Switch, CH – AC S805 QSW-K0086GEZZ J Switch, Menu AC S806 QSW-K0086GEZZ J Switch, CH + AC

MISCELLANEOUS P ARTS

å ACC901QACCZ3009AJZZ V AC Cord AP å F901 QFS-C2025CEZZ V Fuse, 2.0A 250V AD

FH901 QFSHD1013CEZZ V Fuse Holder AC FH902 QFSHD1014CEZZ V Fuse Holder AC FB201 RBLN-0036CEZZ V Ferrite Bead AB FB202 RBLN-0036CEZZ V Ferrite Bead AB FB203 RBLN-0036CEZZ V Ferrite Bead AB FB701 RBLN-0036CEZZ V Ferrite Bead AB FB702 RBLN-0036CEZZ V Ferrite Bead AB

å FB901 RBLN-0036CEZZ V Ferrite Bead AB å FB902 RBLN-0036CEZZ V Ferrite Bead AB

J201 QJAKH0011AJZZ V Jack, Rear AV Jack AK J201 QJAKL0006AJZZ V Jack, Rear A V Jack AL J202 QJAKF0065AJZZ V Jack, Front A V Jack AG J202 QJAKG0006AJZZ V Jack, Front AV Jack AH P701 QPLGZ0883GEZZ J Plug, 8 Pin AD

RDA901 RMC801

SC301 QSOCN0611REN1 V Socket, 6 Pin AC SC301 QSOCN0911REN1 V Socket, 9 Pin AD SC601 QSOCN0695REZZ V Socket, 6 Pin AB

SC602 QSOCZ0293GEZZ J Socket, 2 Pin AC SC701 QSOCN0795REZZ V Socket, 7 Pin AC SC702 QSOCZ0292GEZZ J Socket, 2 Pin AC SC801 QSOCZ0625CEZZ V Socket, 6 Pin AC TP201 QPLGN0447REZZ V Plug, 4 Pin AA W851 LHLDZ1962AJ00 V Holder AD W852 LHLDZ1962AJ00 V Holder AD

PRDAF5021AJFW V Heat Sink, for Q901 AE RRMCU0081GEZZ J R/C Receiver AG or RRMCU0002AJZZ V R/C Receiver AH

PSLDM4575AJFW V H/A Shield Top AD QCNW-0307AJZZ V Connecting Cord AD

(VC-GA56Z) (VC-GH96Z) (VC-GA56Z) (VC-GH96Z)

(VC-GA56Z) (VC-GH96Z)

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

DUNTK5846TEV1

OPERATION UNIT

RESISTORS

R882 VRS-CY1JF472J V 4.7k 1/16W Metal Oxide AA R883 VRS-CY1JF822J V 8.2k 1/16W Metal Oxide AA R884 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R885 VRS-CY1JF223J V 22k 1/16W Metal Oxide AA R886 VRS-CY1JF103J V 10k 1/16W Metal Oxide AA R887 VRS-CY1JF473J V 47k 1/16W Metal Oxide AA R888 VRS-CY1JF123J V 12k 1/16W Metal Oxide AA R889 VRS-CY1JF563J V 56k 1/16W Metal Oxide AA R897 VRD-RA2BE563J V 56k 1/8W Carbon AA R898 VRD-RA2BE223J V 22k 1/8W Carbon AA

SWITCHES

S882 QSW-K0086GEZZ J Switch, Stop AC

or QSW-K0004AJZZ V Switch, Stop AB

S883 QSW-K0086GEZZ J Switch, REC AC

or QSW-K0004AJZZ V Switch, REC AB

S884 QSW-K0086GEZZ J Switch, Pause/Still AC

or QSW-K0004AJZZ V Switch, Pause/Still AB

S885 QSW-K0086GEZZ J Switch, FF AC

or QSW-K0004AJZZ V Switch, FF AB

S886 QSW-K0086GEZZ J Switch, Play A C

or QSW-K0004AJZZ V Switch, Play AB

S887 QSW-K0086GEZZ J Switch, Rew AC

or QSW-K0004AJZZ V Switch, Rew AB

MISCELLANEOUS P ART

P881 QPLGZ0626CEZZ V Plug, 6 Pin AF

MECHANISM CHASSIS P ARTS

1 LBNDK1011AJZZ V Tension Band Ass’y AH 2 LBOSZ1007AJZZ V Tension Arm Boss AD 4 LBOSZ1006AJZZ V Cassette Stay L AD 5 LCHSM0174AJZZ V Main Chassis Ass’y AV 6 LHLDZ2016AJZZ V Loading Motor Block AG 7 LPOLM0070GEZZ J Supply Pole Base Ass’y AK 8 LPOLM0064GEZZ J Take-up Pole Base Ass’y AM 9 MLEVF0518AJZZ V Take-up Loading AF

Arm Ass’y

10 MLEVF0519AJZZ V Supply Loading AF

Arm Ass’y 11 MLEVF0499AJZZ V Pinch Drive Lever Ass’y AG 12 MLEVF0500GEZZ J Pinch Roller Lever Ass’y AW 15 MLEVF0523AJZZ V Tension Arm Ass’y AH 16 LANGF9620AJFW V A/C Head Plate AG 17 MLEVP0271AJZZ V Shifter Drive Lever AE 18 MLEVP0272AJZZ V Pinch Double Action Lever AD 19 MLEVP0301AJZZ V Reverse Guide Lever Ass’y AL 20 MLEVP0275AJZZ V Reverse Drive Lever AD 21 MLEVP0292AJZZ V Slow Brake Lever AE 22 MLEVP0290AJZZ V Open Lever AD 23 MLEVP0293AJZZ V Clutch Lever AE 24 MLEVP0324AJZZ V Supply Main Brake Ass’y AF 25 MLEVP0325AJZZ V Take-up Main Brake Ass’y AF 26 CLEVP0287AJZZ V Automatic Head Cleaner AG

Ass’y 27 MSLiP0010AJZZ V Shifter AH

MSLiP0015AJZZ V Shifter AH 29 MSPRD0175AJFJ V Reverse Guide Spring 2 AE 30 MSPRT0402AJFJ V Loading Double Action AE

Spring

31 MSPRT0403AJFJ V Pinch Double Action AD

Spring 32 MSPRC0213AJFJ V Earth Spring AC 33 MSPRT0416AJFJ V Tension Spring AD 34 NBLTK0067AJ00 V Reel Belt AE 35 NDAiV1078AJ00 V Reel Disk AE

NDAiV1091AJ00 V Reel Disk AE 36 NGERH1293AJZZ V Loading Connect Gear AD 37 NGERH1295AJ00 V Master Cam AE 38 NGERH1294AJZZ V Casecon Drive Gear AD 39 NGERH1270AJZZ V Take-up Loading Gear AF 40 NGERH1271AJZZ V Supply Loading Gear AD 41 NGERH1272AJZZ V Pinch Drive Cam AE 43 NGERH1299AJZZ V Reel Relay Gear AE 44 NGERW1070AJZZ V Worm Gear AD 45 NGERW1066AJZZ V Worm Wheel Gear AD 46 NiDR-0018AJZZ V Idler Wheel Ass’y AK 47 NPLYV0162AJZZ V Motor Pulley AD 48 NPLYV0163AJZZ V Limiter Pulley Ass’y AM 49 NROLP0131GEZZ J Guide Roller AL 50 NSFTP0032AJZZ V Tension Pole Adjuster AB 51 MSPRC0217AJFJ V Guide Roller Spring AC 52 PREFL1011AJZZ V Light Guide AE 53 QCNW-8022AJZZ V FFC for Drum Motor AD 55 QCNW-8021AJZZ V FFC for A/C Head AD 56 QPWBF5243AJZZ V A/C Head PWB AE 57 QSOCN0696REZZ V Socket, 6 Pin AB 58 RHEDT0036AJZZ V Full Erase Head AM 59 RHEDU0088GEZZ J A/C Head Ass’y AV 60 RMOTM1078GEZZ J Loading Motor AP 61 RMOTN2067GEZZ J Capstan D.D. Motor PWM AY 62 RMOTP1139GEZZ J Drum Drive Motor AT

(VC-GH96Z)

62 RMOTP1151GEZZ J Drum Drive Motor AT

(VC-GA56Z) or RMOTP1139GEZZ J Drum Drive Motor AT

63 DDRMW0029TEX1 V Upper and Lower BU

Drum Ass’y

(VC-GA56Z)

63 DDRMW0030TEX1 V Upper and Lower BU

Drum Ass’y (VC-GH96Z)

65 QBRSK0041GEZZ J Drum Earth Brush AD 66 XBPSD26P05J00 V Drum Drive Motor AA

Mounting Screw

(SW2.6P+5S)

67 PGiDC0056GEFW J Drum Base AL 68 QPWBF5468AJZZ V PWB(LDG Motor) AE 69 QPLGZ0292GEZZ J Socket(LDG Motor) AE 70 MSPRC0223AJFJ V Azimuth Spring AC 71 MSPRC0224AJFJ V Height Adjusting Spring AC

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

SCREW, NUTS AND WASHERS

201 XBPSD26P08000 V Screw 2.6P+8S A/C Head AA 202 LX-HZ3082GEZZ J WSW 2.6+6 (AC) AD 203 XJPSD26P06000 V Screw, 2.6P+6 (B Tite) AA

(For Capstan Motor)

207 XHPSD30P08WS0 V Screw, C3.0P+8S AA

(For Drum Base) 208 XRESJ30-06000 V E-Ring, E-3 AA 209 XWHJZ31-03052 V Washer, W3.1-5.2-0.3 AC 210 XWHJZ31-04052 V Washer, W3.1-5.2-0.4 AC 211 XWHJZ31-05052 V Washer, W3.1-5.2-0.5 AC 212 XWHJZ31-06052 V Washer, W3.1-5.2-0.6 AC 213 XWHJZ31-07052 V Washer, W3.1-5.2-0.7 AC 214 PSPAP0009AJZZ V Reverse Guide Adjusting AB

Nut 216 LX-WZ1041GE00 J CW 2.6-6-0.5 CAM AA 218 XBPSD30P06J00 V Drum Base Mounting AA

Screw (SW 3P+6S) 219 LX-WZ1098GE00 J CW 2.6-4.7-0.5 RED AB 220 LX-BZ3096GEFD J Tilt Adjusting Screw AA 221 XBPSD26P06000 V Azimuth Adjusting Screw AA

2.6+6S 222 LX-BZ3197GEFD J Screw (A/C Head) AD 223 XWHJZ31-08052 V Washer, W3.1-5.2-0.8 AC

CASSETTE HOUSING CONTROL PARTS

300 CHLDX3081TEV2 V Cassette Housing Control AX

Ass’y 301 LANGF9592AJFW V Upper Plate AL 302 LHLDX1028AJ00 V Frame (L) AH 303 LHLDX1032AJ00 V Frame (R) AH 304 LHLDX1030AJZZ V Holder (L) AE 305 LHLDX1031AJZZ V Holder (R) AE 306 MLEVF0469AJFW V Proof Lever (R) AE 307 MLEVP0281AJ00 V Door Open Lever AD 308 MSLiF0076AJFW V Slider AK 309 MSPRD0151AJFJ V Proof Lever (R) Spring AB 310 MSPRD0166AJFJ V Drive Gear (R) Spring AE 311 MSPRP0175AJFJ V Cassette Spring AE 312 MSPRT0381AJFJ V Double Action Spring AC 313 NGERH1278AJZZ V Drive Gear L AE 314 NGERH1309AJZZ V Drive Gear R AE 315 NGERR1008AJ00 V Double Action Rack Gear AE 316 NGERR3005AJFW V Drive Angle Gear AG 317 NSFTD0041AJFD V Main Shaft AH

CABINET PARTS

600 GCABA3131AJSA V Top Cabinet AR 601 GCABB1223AJSF V Main Frame AN 602 GCOVA2072AJKZ V Antenna Terminal Cover AE

602 GCOVA2073AJKZ V Antenna Terminal Cover AE 603 PSLDM4566AJFW V Shield Angle AD

604 XHPSD26P06WS0 V Screw AA 605 XHPSD30P06WS0 V Screw, x3 AA 606 LANGK0197AJFW V Top Cabinet Fixing Angle AG 607 XEPSD30P14XS0 V Screw, x2 AB 608 LX-HZ3047GEZZ V Screw, x2 AA 609 XEBSD30P12000 V Screw, x3 AA 610 LX-HZ3087GEFN V Screw AB 612 LHLDZ1962AJ00 V Sensor LED Cover, x2 AD 613 PGUMS0026AJZZ V Foot Cushion, x2 AB 614 TLABM4304AJZZ V Model Label (VC-GA56Z) AB 614 TLABM4305AJZZ V Model Label (VC-GH96Z) AB 615 XJPSD30P10WS0 V Screw, x2 AA 616 QACCZ3019AJZZ V AC Cord (ACC901) AN 617 QSW-F0042AJZZ V Rec Tip SW(S701) AG

(VC-GA56Z) (VC-GH96Z)

FRONT PANEL PARTS

500 CPNLC2809TEV1 V Front Panel Ass’y AU 500 CPNLC2810TEV1 V Front Panel Ass’y AU 500-1

500-2 HDECQ2242AJSA V Cassette Flap (VC-GH96Z) AL 500-2 HDECQ2243AJSA V Cassette Flap (VC-GA56Z) AL 500-3 HDECQ1976AJSB V Window Decoration AN 500-4 JBTN-2943AJSD V Button, REC AE 500-5 JBTN-2939AJSA V Button, SET-UP AF 500-6 MSPRD0103AJFJ V Cassette Spring AB 502 JBTN-2942AJSB V Button, PLAY/STOP AH 503 LHLDZ2066AJZZ V Button Holder AC 504 TLABZ1604AJZZ V Feature Label AE

Not Available

(VC-GH96Z) (VC-GA56Z)

– Front Panel —

SUPPLIED ACCESSORIES

QCNW-8115AJZZ V RF Cable AG QPLGA0013GEZZ V AC Plug Adaptor AH RRMCG1201AJSA V Infrared R/C Unit AX TiNS-3782AJZZ V Operation Manual AH

ACCESSORIES

PACKING P ARTS

(NOT REPLACEMENT ITEM)

SPAKC4377AJZZ – Packing Case (VC-GA56Z) — SPAKC4378AJZZ – Packing Case (VC-GH96Z) — SPAKX1073AJZZ – Buffer Material — SSAKA0001AJZZ – Polyethylene Bag — TLABV0182AJZZ – Bar Code Label —

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

11. EXPLODED VIEW OF MECHANICAL PARTS

MECHANISM CHASSIS PARTS

222

221

220

202

216

207

218

207

201

202

214

203

209 210 211 212

213 223

46 43

219

30 36

208

654321

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

CASSETTE HOUSING CONTROL PARTS

300

301

304

302

311

305

306

308

309

313

310

317

303

314

312

307

315

316

654321

VC-GA56Z

600

609

602

612

605

604

603

607

608

615

614

606

601

605

609

613

615

VC-GH96Z

VC-GA56Z

VC-GH96Z

609

602

616

617

VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

CABINET PARTS

654321

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

FRONT PANEL PARTS

500-6

500-2

500

500-5

500-1

500-3

PRECAUTION ON FRONT PANEL SET-UP

Cassette housing

Cassette cover open lever

Before attaching the front panel in position, make sure that the cassette cover open lever is in its right place (lower-most). If it is out of position, push it down with a finger.

Cassette cover open lever

About 45°

Keep the cassette over about 45° open and make sure that the cassette cover open lever is between the front panel and the cassette cover. Now fix the front panel in place.

502

Front panel

Cassette cover

Cassette cover open lever

503

Do not mount the front panel with the cassette cover tilted too open. Otherwise the cassette cover might wrongly run on the cassette housing.

500-4

Cassette cover

Removing the cassette compartment cover. 1 Open the cassette compartment cover

fully.

2 Remove the center positioner. 3 Slide the cover to the right. 4 Slightly bend the cover. 5 Draw out the left-side rod.

654321

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

12. PACKING OF THE SET

Setting position of the Knobs

RF conv. CH. preset at "3" channel

Accessories

TiNS-3782AJZZ Operation Manual QPLGA0013GEZZ AC Plug Adaptor

RRMCG1201AJSA Infrared R/C Unit

QCNW-8115AJZZ RF Cable

★ Dry Batteies

★ SPAKX1073AJZZ

Buffer Material

MARK ★ Not Replacement Item

★ SPAKC4377AJZZ (VC-GA56Z) ★ SPAKC4378AJZZ (VC-GH96Z)

Packing Case

VC-GA56Z VC-GH96Z

Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code

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.

TQ0901-S

Jun. 2000 Printed in Japan

NA. KG

SHARP CORPORATION AV Systems Group Quality & Reliability Control Center Yaita, Tochigi 329-2193, Japan

Sharp vc-ga56z,vc-gh96z Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual