SHARP VLZ7U, VLZ75U, VLZ8U Service Manual

Download

Page 1

VL-Z7U/Z75U/Z8U

SERVICE MANUAL

S43Z2VL-Z7U//

LIQUID CRYSTAL DISPLAY CAMCORDER NTSC

VL-Z7U VL-Z75U

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.

VL-Z8U

CONTENTS

Page

1. IMPORTANT SERVICE NOTES ........................................................................................................ 2

2. SPECIFICATIONS .............................................................................................................................. 6

3. PART NAMES .................................................................................................................................... 7

4. DISASSEMBLY OF THE SET ............................................................................................................ 8

5. MECHANISM ADJUSTMENT JIGS AND PARTS ............................................................................ 12

6. INSPECTION AND MAINTENANCE

ITEMS AND INTERVALS ................................................................................................................. 13

7. ADJUSTING AND CHECKING OF MECHANISM ........................................................................... 14

8. ADJUSTMENT OF RUNNING SYSTEM .......................................................................................... 17

9. ASSEMBLING OF MECHANISM SECTION AND PART REPLACEMENT

(DISASSEMBLING AND ASSEMBLING) ........................................................................................... 19

10.METHOD OF ADJUSTING THE ELECTRIC CIRCUIT .................................................................... 29

11.USEFUL TIPS ................................................................................................................................... 48

12.SIGNAL FLOW DIAGRAMS ............................................................................................................. 49

13.BLOCK DIAGRAMS ......................................................................................................................... 52

14.SCHEMATIC DIAGRAMS ................................................................................................................ 58

15.SEMICONDUCTOR LEAD IDENTIFICATION ............................................................................... 122

16.PRINTED WIRING BOARD ASSEMBLIES .................................................................................... 124

17.REPLACEMENT PARTS LIST ....................................................................................................... 141

18.PACKING OF THE SET ................................................................................................................. 163

SHARP CORPORATION

This document has been published to be used for after sales service only. The contents are subject to change without notice.

Page 2

VL-Z7U/Z75U/Z8U

1. IMPORTANT SERVICE NOTES

BEFORE RETURNING THE VIDEO CAMERA RECORDER

Before returning the video camera recorder to the user, perform the following safety checks.

1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the video camera recorder.

2. Inspect all protective devices such as non-metallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor/capacitor networks, mechanical insulators etc.

3. To be sure that no shock hazard exists, check for leakage current in the following manner.

· Plug the AC line cord directly into a 120 volt AC outlet (Do not use an isolation transformer for this test).

· Using two clip leads, connect a l.5k ohm, 10 watt resistor

paralleled by a 0.15µF capacitor in series with all

exposed metal cabinet parts and a known ground, such as a water pipe or conduit.

· Use a VTVM or VOM with 1000 ohm per volt, or higher sensitivity or measure the AC voltage drop across the resistor (See Diagram).

· Move the resistor connection to all exposed metal parts having a return path to the chassis (antenna

connections, metal cabinet, screw heads, knobs and control shafts, etc.) and measure the AC voltage drop across the resistor. Reverse the AC plug (a non polarized adaptor plug must be used but only for the purpose of completing these checks) on the set and repeat the AC voltage measurements for each exposed metallic part. Any reading of 0.45V rms (this corresponds to 0.3mA rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the video camera recorder to the user.

VTVM

AC SCALE

1.5k ohms 10W

0.15 µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

1. NOTES DE SERVICE IMPORTANTES

AVANT DE RENDRE LE MAGNETOSCOPE

Avant de rendre le magnétoscope à l’utilisateur, effectuer les vérifications de sécurité suivantes.

1. Vérifier toutes les gaines de fil pour être sûr que les fils ne sont pas pincés ou que le matériel n’est pas coincé entre le châssis et les autres pièces métalliques dans le magnétoscope.

2. Vérifier tous les dispositifs de protection tels que les boutons de commande non métalliques, les matériaux d’isolement, le dos du coffret, les couvercles de compartiment et ajustement ou les boucliers, les réseaux de résistance / condensateur d’isolement, Ies isolateurs mécaniques, etc.

3. Pour être sûr qu’il n’y a aucun risque de choc électrique, vérifier le courant de fuite de la maniére suivante.

· Brancher le cordon d’alimentation secteur directement dans une prise de courant de 120 volts. (Ne pas utiliser de transformateur d’isolement pour cet essai).

· Utiliser deux fils à pinces et connecter une résistance de 10 watts 1,5 kohm en parallèle avec un

condensateur de 0,15 µF en série avec des pièces du

coffret métallique exposées et une masse de terre connue telle qu’un tuyau ou un conduit d’eau.

· Utiliser un VTVM ou VOM avec une sensibilité de 1000 ohms par volt ou plus ou mesurer la chute de tension CA entre la résistance (voir diagramme).

· Déposer la connexion de la résistance à toutes les pièces métalliques exposées ayant un parcours de

retour au châssis (connexions d’antenne, coffret métallique, tétes de vis, boutons et arbres de commande, etc.) et mesurer la chute de tension CA entre la résistance. Inverser la fiche CA (une fiche intermédiaire non polarisée doit être utilisée à seule fin de faire ces vérifications.) sur l’appareil et répéter les mesures de tension CA pour chaque piéce métallique exposée. Toute lecture de 0,45 V rms (ceci correspond à 0,3 mA rms CA) ou plus est excessive et signale un danger de choc qui doit être corrigé avant de rendre le magnétoscope à son utilisateur.

VTVM

ECHELLE CA

1.5KOHMS 10W

0.15 µF

SONDE D'ESSAI

VERS PIECES METALLIQUES EXPOSEES

CONNECTER A UNE MASSE DE TERRE CONNUE

Page 3

VL-Z7U/Z75U/Z8U

WARNING :TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE

THIS APPLIANCE TO WET LOCATIONS.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC

SHOCK. DO NOT REMOVE COVER. NO USER·SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

This symbol warns the user of uninsulated voltage within the unit that can cause dangerous electric shocks.

This symbol alerts the user that there are important operating and maintenance instructions in the literature accompanying this unit.

CAUTION

This symbol mark means following. For continued protection against fire hazard, replace only with same type fuse. (CP1; 0.75A 24V, CP2; 1.25A 24V, CP3;

1.25A 24V)

Camcorder

only

ATTENTION:POUR REDUIRE LES RESQUES D'INCENDIE OU DE CHOC ELECTRIQUE,

NE PAS EXPOSER CET APPAREIL A LA PLUIE OU A L'HUMIDITE.

ATTENTION

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

ATTENTION: AFIN DE REDUIRE LES RISQUES DE

CHOC ELECTRIQUE, NE PAS RETIRER LE COUVERCLE, AUCUN ORGANE INTERNE NE PEUT ETRE REPARE PAR L'UTIUSATEUR, CONFIER L'APPAREIL A UN DEPANNEUR QUALIFIE.

Ce symbole signale à l'utilisateur la présence d'une tension non isolée à l'intérieur de l'appareil qui peut être la cause de secousses électriques dangereuses.

Ce symbole avertit l'utilisateur que des instructions importantes relatives à l'utilisation et àl'entretien se trouvent dans le manuel accompagnant l'appareil.

ATTENTION

Ce symbole signifie que l'on devra utiliser un fusible de même type (CP1; 0,75A 24V, CP2; 1,25A 24V, CP3; 1,25A 24V) pour assurer la sécurité.

Camcorder

seulement

Page 4

VL-Z7U/Z75U/Z8U

NICKEL-CADMIUM BATTERY

The following program is available in the United States. Please consult local environmental authorities concerning the availability of this or other programs in your area.

The RBRCTM Seal

SHARP participates in the RBRC States. The RBRC voluntarily participating in an industry program to collect and recycle these batteries. The RBRC program provides you with a convenient alternative to placing spent Nickel-Cadmium battery packs into the trash or municipal waste stream, which is illegal in some areas. At the end of their useful life, the Nickel-Cadmium battery can be dropped off at the nearest collection center for recycling. For information on the nearest collection center, call 1-800-8-BATTERY or your local recycling center. If you are located outside the United States, contact your local authorities for information concerning proper disposal and/ or recycling of this battery. SHARP’s involvement in this program is part of our commitment to protecting our environment and conserving natural resources. [Footnote] *RBRCTM is trademark of the Rechargeable Battery Recycling Corporation.

CAUTION

BEFORE BATTERY DESTROY

TM* Nickel-Cadmium Battery Recycling Program in the United

TM Seal on our battery pack contained in our product indicates that SHARP is

NICKEL-METAL HYDRIDE BATTERY

LITHIUM or LITHIUM-ION BATTERY SEALED LEAD BATTERY

Battery disposal Contains the above (Rechargeable) Battery. must be recycled or disposed of properly. Remove the Battery from the products and contact Federal or State Environmental Agencies for information on recycling and disposal options.

Page 5

VL-Z7U/Z75U/Z8U

■ PRECAUTIONS FOR USING LEAD-FREE SOLDER

1) Employing lead-free solder "Main PWB", "CCD PWB", "Sub PWB", "LCD PWB", "Head amp PWB", "Lithium PWB", "Operation PWB", "VCR Operation PWB", "Zoom SW PWB", "Mecha Reversion detection PWB", of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

Example:

Indicates lead-free solder of tin, silver and copper

2) Using lead-free solder When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks.

As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend you to

use a dedicated soldering bit. If you are not familiar with how to obtain lead-free solder or soldering bit, contact our service station or service ranch in your area.

3) Soldering

As the melting point of lead-free solder (Sn-Ag-Cu) is 220°C which is higher than the conventional lead solder by 40°C,

and as it has poor solderability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition. Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it. When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

Lead-free wire solder for servicing

Part No. ★ Description Price Code

ZHNDAi123250E J φ0.3mm 250g(1roll) BL ZHNDAi126500E J φ0.6mm 500g(1roll) BK ZHNDAi12801KE J φ1.0mm 1kg(1roll) BM

Page 6

VL-Z7U/Z75U/Z8U

2. SPECIFICATIONS

Recording/Playback Time: 90 minutes (DVM60, LP mode)

Lens Filter Diameter: 30 mm

Color Temperature Compensation: Auto white balance with white balance lock

Minimum Illumination: 3 lux (15 lux measured by EIA standard)(with gain-up, F1.8)

Still Image Compression System: JPEG base line conformance

Still Image Recording Format: JPEG (Exif2.2)

Still Image Recording Medium: SD Memory Card, MultiMediaCard

Power Requirement: DC 7.4 V

Power Consumption: 4.0 W (during camera recording in Tape Camera mode using the viewfinder in Full

Operating Temperature: 32°F to 104°F (0°C to +40°C)

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

Dimensions (approx.): 3 1/

Signal System: NTSC standard

Recording System: 2 rotary heads, helical scanning system

Cassette: Digital VCR Mini DV video cassette

Tape Speed: SP mode: 18.812 mm/second

LP mode: 12.555 mm/second

Pickup Device:1/4" (6.4 mm, effective size: 4.5 mm) CCD image sensor

(with approx. 1,330,000 pixels including optical black, effective pixels: 690,000 pixels in Tape Camera mode, 1,250,000 pixels in Card Camera mode)

Lens: 10 × optical zoom lens (F1.8, f=3.8-38.0 mm)

Monitor: 2.5" (6.4 cm) CGSilicon

Built-in Microphone: Electret stereo microphone

Auto mode with the DIS function on)

4.6 W (during camera recording in Tape Camera mode using the LCD monitor in Full Auto mode with the DIS function on and backlight in normal mode)

Operating Humidity: 30% to 80%

" (W) × 3

[82.8 mm (W) × 86.2 mm (H) × 103.5 mm (D)]

Weight (approx.): 1.12 lbs (510 g)(without battery pack, lithium battery, video cassette, lens cap,

and card)

" (H) × 4

/16" (D)

AC Adapter (UADP-0339TAZZ)(VL-Z7U/C/Z75U)

AC Adapter (UADP-A015WJZZ)(VL-Z7K/Z8K)

Power Requirement: AC 110-240 V, 50/60 Hz

DC Output: 10 V

Dimensions (approx.): UADP-0339TAZZ: 50 mm (W) × 27.0 mm (H) × 65.5 mm (D)

UADP-A015WJZZ: 49 mm (W) × 27.5 mm (H) × 79 mm (D)

Weight (approx.): UADP-0339TAZZ: 100 g

UADP-A015WJZZ: 105 g

Specifications are subject to change without notice.

SERVICE INFORMATION (For the U.S.)

For the location of the nearest Sharp Authorized Service, or to obtain product literature, accessories, supplies or customer assistance, please call 1-800-BE SHARP (1-800-237-4277) or visit SHARP's website (http://www.sharpusa.com)

Page 7

3. PART NAMES

Front view

Zoom lens

Zoom microphone shoe

VL-Z7U/Z75U/Z8U

Operation button

Left view

LCD monitor

USB terminal

Terminal cover

Flash

Stereo microphone

Earphones jack

AV terminal

DV terminal

DC IN jack

Flash sensor

Right view

STANDBY indicator

DISPLAY button

LCD LAMP button

Window cleaning cover

Viewfinder

POWER/CHARGE (RED) indicator

DC IN jack cover

Start/Stop button

Power switch ( Camera Recording mode/ Playback mode select switch)

PHOTO button

Cassette holder

Power Zoom Wide angle/ Telephoto control/ VOLume control

Media Selection switch ( Tape mode/ Card mode selection switch)

STANDBY button

Speaker

Hand strap

Tripod socket*

Card slot cover

* When attaching a tripod with a guide pin, do not attach the pin to the bottom of the camcorder.

Lithium battery cover

Diopter adjustment dial

Battery release

Cassette compartment door release

Cassette compartment door

Page 8

VL-Z7U/Z75U/Z8U

4. DISASSEMBLY OF THE SET

4-1. Procedure for disassembling the cabinet

Note:

Before removing the cabinet, turn OFF the power and make sure that the battery is not connected.

· Remove the screw ((s) XiPSF14P06000).

· Remove the shoe cover by sliding it frontward, remove the screw

((f) XiPSF17P04000) and remove the shoe terminal cover.

· Remove the screw ((b) XiPSN17P03000).

· Open the LCD panel 90 degrees and remove the two screws ((x)LX-

HZ0050TAFN).

· Remove the two screws ((c)XiPSN17P04000) and remove the KS camera front cover by pulling it frontward.

· Disconnect the connector of the KS camera front cover.

· Disconnect the two LCD tilt FPCs of the liquid crystal panel.

· Remove the two screws ((r) XiPSN20P08000) and remove the LCD

panel.

· Remove the screw ((p) LX-HZ0063TAFN) and screw ((q) XiPSN17P06000) that hold the camera L cabinet, open the terminal cover and remove the three screws ((b) XiPSN17P03000).

Shoe cover

Shoe terminal cover

LCD panel

KS camera front cover

LCD panel

Camera L cabinet

· Disconnect the hot shoe FPC of the hot shoe and remove the camera L cabinet.

· Remove the screw ((c) XiPSN17P04000) and remove the KS camera bottom cover.

· Disconnect the strobe FPC, remove the two screws ((a) XiPSN17P02000) and remove the strobe unit.

å Precautions in servicing the strobe unit

Once put in the card mode, the main condenser of the strobe unit stays still electrically charged. If touching the strobe unit or its nearby parts, you may get an electric shock.

To avoid this, connect a 7 kΩ resistor (300-V withstand voltage)

across the main condenser for about 10 seconds. The condenser will be discharged.

Strobe unit

LCD tilt FPC

KS camera front cover

Hot shoe FPC

Strobe FPC

Terminal cover

Connector

Camera L cabinet

KS camera bottom cover

Page 9

VL-Z7U/Z75U/Z8U

Camera top cover

Camera unit

FPC(2)

Connector

· Remove the screw ((x) LX-HZ0050TAFN), screw ((p) LXHZ0063TAFN) and screw ((a) XiPSN17P02000), disconnect the FPC (1) and remove the camera top cover.

· Remove the screw ((b) XiPSN17P03000) from the camera unit, disconnect the FPC (2) and remove the camera unit.

· Remove the screw ((b) XiPSN17P03000), disconnect the connector and FPC (3) and remove the VF.

FPC(3)

FPC(1)

Mechanism reversion detection PWB unit

PWB mounting angle

· Remove the screw ((b) XiPSN17P03000) and remove the Mechanism reversion detection PWB unit.

· Remove the three screws ((u) LX-BZ0221TAFC) and remove the PWB mounting angle.

Sub PWB unit

Radiating angle

Connector

Terminal cabinet

Main PWB unit

PWB mounting angle

Tilt FPC

· Disconnect the two connectors of the sub PWB unit and main PWB unit.

· Remove the two screws ((b) XiPSN17P03000) from the radiating angle, remove the screw ((b) XiPSN17P03000) from the PWB unit and remove each unit.

· Disconnect the two FFCs of the main PWB unit.

· Remove the two screws ((x) LX-HZ0050TAFN), remove the

screw ((x) LX-HZ0050TAFN) from the PWB mounting angle and remove the terminal cabinet.

LCD tilt unit assembly

· Turn the LCD tilt unit assembly 90 degrees.

· Remove the three screws ((b) XiPSN17P03000).

· Remove the screw ((a) XiPSN17P02000).

Page 10

VL-Z7U/Z75U/Z8U

4-2. Procedure for disassembling the cabinet

· Remove the three screws ((e) XiPSF17P03000) remove the screw ((d) XiPSF17P02000) and remove the VCR bottom cover.

· Remove the two screws ((e) XiPSF17P03000) and remove the tilt cover.

· Remove the VCR front cover with the cassette cover opened.

· Disconnect the connector and two tilt FPCs, remove the three screws

((h) LX-BZ0220TAFC) and remove the KS camera tilt.

VCR bottom cover

Tilt cover

How to remove the VCR front cover

1. Remove the two couplings and turn the VCR front cover about 20 degrees in the direction indicated by (1).

2. Turn the VCR front while sliding it in the direction indicated by (2) to disengage the internal lug. * If the VCR front cover is removed by turning it forcedly in the direction indicated by (1), the internal lug may be damaged.

If the VCR front cover is removed only by turning it in the direction indicated

The internal lug may be damaged

· Remove the screw ((f) XiPSF17P04000) with the cassette lid opened, disconnect the operation PWB FFC and remove the KS VCR operating cover.

VCR front cover

KS VCR operating cover

KS camera unit

Tilt FPC

Connector

Operating PWB FFC

Page 11

Mechanism

Head amp PWB unit

FPC

· Disconnect the six FPCs of the head amp circuit board unit.

· Remove the two screws ((a) XiPSN17P02000) and remove the head amp PWB unit.

· Remove the three screws ((w) LX-BZA022WJFN) and remove the screw ((k) LX-BZA023WJFD).

· Remove the mechanism with the cassette lid opened.

VL-Z7U/Z75U/Z8U

· Remove the screw ((x) LX-HZ0050TAFN).

· Remove the two screws ((d) XiPSF17P02000) and remove the cassette

lid.

· Remove the two screws ((d) XiPSF17P02000).

· Disconnect the connector of the speaker while removing the KS upper

lid cover with the cassette control lid opened.

· Remove the screw ((d) XiPSF17P02000) and remove the lock support cover.

· Remove the speaker.

KS upper lid cover

Cassette lid

Lock support cover

Connector

Speaker

Page 12

VL-Z7U/Z75U/Z8U

5. MECHANISM ADJUSTING JIGS AND PARTS

5-1. Mechanism checking and adjusting jigs

<Note: Order of descriptions>

Sketch

1. Name

2. Part code

3. Code * Model number and usage

1. Cassette torque meter for PB

2. 9DASD-1015

3. DB * 1mN·m/1.5mN·m

50 or more

ø2

No.0 Phillips bit No.00 Phillips bit

1. Torque driver 150mN·m

2. JiGTD1500RTDH

3. CB

1. Torque gauge

2. JiGTG0045

3. CN * For measurement of VS-

REW winding torque

1. Master plane

2. 9EQMP-VLPD1

3. CL * For checking of

1. Torque gauge head

2. 9EQTGH-DH5000

3. BW *

For torque gauge shown

left

1. Height adjustment jig

2. 9DAHG-PD1

3. BZ * For height adjustment

height of reel table

1. Bit for hexagon nut

1. Alignment tape – (I)

2. VR3-GAZXS

3. CF * Adjustment of running system (Linear signal)

1. Alignment tape – (II)

2. VR3-GTZQS

3. CG * For adjustment of SW point(Color bar signal) *

90ADVC-TAPE available

with opposite side distance of 3 mm

2. 95CM22001

3. BL * For installation of Tu guide nut

5-2. Parts for periodic inspection and maintenance

1. Oil Cosmo Hydro HV22

2. 9EQ-OiL-HV22

3. AE * Cosmo Oil Co., Ltd.

1. Cleaning paper

2. JiGDUSPER

3. AP

* DUSPER ∑ (SIGMA)

(Ozu Co., LTD.)

(1) Reel hub for back tension measurement (Fig.1)

1) Have the reel hub of a commercially available cassette tape ready.(Disassemble the cassette tape and remove the tape from the reel hub.)

2) Attach one end of a thread (having a length of about 20cm) to the reel hub using Scotch tape etc.

Attach a weight of about 0.21N to the top face of the reel hub.

(2) Thread for pinch roller press force measurement

1) Have a commercially available thread having a length of about 20cm ready.

1. Dry grease CFD-409Z * Sankei Chemical Co., LTD.

1. Grease Molykote YM-103

2. 99FGREASEYM103 * Dow Corning

2) Tie both ends together to loop the thread.

Thread

1. Tension gauge 4N

2. JiGSG0400

3. BK * For measurement of

pinch roller press force

1. Driver for height adjustment

2. 9EQDRiVER-DH5

3. BC

(1) Vernier calipers (2) Precision screwdriver (Phillips head and slot-

ted) (3) Long-nose pliers (with thin tips) (4) Tweezers

<Note: Order of descriptions>

Weight

Fig. 1

1. Dial tension gauge

2. 9DAPTG-10-10W

3. CA * PTG-10

* For adjustment of guide roller * Bit shape

1.4

1. Name

2. Part code

3. Code * Model number and usage

1. Cleaning liquid Industrial ethyl alcohol * Commercial item

1. Loctite adhesive (1401B) * Three Bond

1. Ultrathin cotton swab * Commercial item

Reel hub

Fig. 2

(see figure below)

Tolerance ± 0.1

Tip thickness 0.5

Thread

Page 13

VL-Z7U/Z75U/Z8U

6. INSPECTION AND MAINTENANCE ITEMS AND INTERVALS

In order to maintain the quality of the mechanism section, perform the following maintenance and inspection. After repairing the mechanism section, perform the following maintenance regardless of the number of hours of use by the user.

6-1. Maintenance and inspection list

Inspection and

maintenance location

Tape running section (See 8-3.)

Drum section, Video head (See 8-3.)

Running system

Pinch roller

Capstan motor (Timing belt)

Swing arm

S reel table, Tu reel table Center gear boss Relay pulley shaft

Driving system

Loading motor

Mode SW

Abnormal noise

PB and VS/R winding torque

PB, VS/R and loading back tension

S reel table unloaded torque

Performance check

Number of hours of use (h)

500 1,000 1,500 2,000 3,000

• Replace if abnormal rotation or swing (large) is found. <Others>

• Cleans the portions that come in contact with the tape (the lower drum helical portion in particular). Use the specified cleaning liquid.

• • • Replace. • • • Clean. • • • Lubricate. • • • Check.

Symptoms observed at the time of maintenance

• Block noise

• Clogging of head

• Damage to tape

• Tape not running

• Tape sagged

• Block noise

• Abnormal noise

• Ejecting cannot be made.

• Mode cannot be set.

• Tape not running

• Tape sagged

• Damage to tape

• Abnomaly in reproduced

picture

[Oil] Cosmo Hydro HV22 [Grease] Molykote YM-103

Sankei Chemical CFD-409Z

Notes and remarks

Note:

If no envelope output is obtained in spite of the video head being cleaned, replace the drum component. (If the envelope output is normal, refer to "11. USEFUL TIPS".)

• Replace if any abnormal condition is found.

• Apply oil. [Oil] Cosmo Hydro HV22

Note:

Apply oil to the shaft and lightly wipe it off with a cloth.

• Replace if any abnormal

condition (noise etc.) is found.

• If a part is out of spec, replace

it.

[Loctite adhesive] Three Bond 1401B [Cleaning liquid] Industrial ethyl alcohol

6-2. Cautions in handling the mechanism

(1)Cut washers removed at the time of part replacement etc. should be

replaced with new ones without fail.

(2) Because no volume adjustment is available in this mechanism, cleaning or

part replacement should be performed if the setting is not satisfied.

(3) About oil

a) Be sure to use the specified oil. (If any oil other than the specified oil is

used, various troubles will occur.)

b) When lubricating the bearing, be sure to oil free from foreign particles

such as dust. (If oil in which foreign particles such as dust are mixed is used, it will cause wear and seizure to the bearing.)

c) The term "One drop of oil" here means the amount of oil on the point of

a needle etc. shown in Fig.1.

(4) Repairing of circuits, final adjustment of running system, etc. should be

performed with the cassette controller assembly installed in the mechanism.

(5) When operating the mechanism singly, apply voltage to the loading motor

to drive it. The voltage between the terminals should be 3 to 4V DC. (Do not apply external voltage to the loading motor with the mechanism connected with the main circuit board. Doing so could cause a failure.) (Turning the gears forcedly by hand may cause them to get damaged.) When placing the mechanism singly, use an appropriate spacer so that the capstan motor is not rubbed.

(6) When installing the cassette controller, push the portion indicated by "A" in

Fig.2. Do not push other portions.

(7) Take care not to deform the components of the mechanism.

Oil

Ø1.5 or less

Fig. 1

Fig. 2

Page 14

VL-Z7U/Z75U/Z8U

7. ADJUSTING AND CHECKING OF MECHANISM

The items described here are relevant to the general on-site servicing (field service). This section does not cover adjustment and replacement for which sophisticated equipment, jigs and techniques are required. In order to maintain the initial characteristics of the mechanism, it is necessary to perform maintenance and inspection and also it is essential not to damage the tape etc. In the case of an adjustment that requires a jig, be sure to use the specified jig.

(1) When adjusting and checking the mechanism, be sure to see that the power supply and the status are as indicated in

Caution on the title.

(2) Do not apply external voltage to the loading motor with the mechanism connected with the main circuit board. (Doing

so could cause a failure.)

(3) When running the tape, be sure to do so with the cassette controller assembly installed.

7-1. Checking of PB (REC) winding torque

AC adapter used, Cassette controller assembly installed

(1) Set the torque cassette with the cassette controller installed in the mechanism. In the SP record mode (or in the PB mode

if signals have been SP-recorded on the tape), check that the winding torque is within spec.

<Spec for PB (REC) winding torque>(If there is a torque ripple, read the center value.)

0.7+0.2/-0.05N·m, Ripple: 0.1mN·m or less

7-2. Checking of VS-REW winding torque

AC adapter used, Cassette controller assembly not installed (Mechanism only)

(1) Remove the cassette controller, turn ON the down SW while referring to 9-3, operate

in the test mode (T01) and select the VS-REW mode.

(2) Set the torque gauge in the S reel table, push the tip of the tension pole with your finger

in the direction shown by Arrow A to release the tension band, and check that the winding torque is within spec. (Fig.1) (Do not apply the own weight of the torque gauge or rotate it during measurement.)

<Spec for VS-REW winding torque> (If there is a torque ripple, read the center value.)

1.5 ± 0.15N·m, Ripple: 0.15mN·m or less

(3) After checking the winding torque, remove the torque gauge and turn OFF the down

SW. The mechanism will automatically go into the standby mode.

Fig.1 How to release the tension

band when measuring the VS-REW winding torque

7-3. Checking of height of reel table

3 to 4V DC, Cassette controller assembly not installed (Mechanism only) (1) Remove the cassette controller. (Refer to 9-2.)

(2) Apply 3 to 4V DC to the loading motor while referring to 9-1 and select the

PB mode.

(3) Fit the holes of the master plane to the two guides (portions A and B) shown

in the Fig.2, taking great care not to allow master plane to strike the running parts such as the drum and guide roller or the MIC contact.

(4) Using a pair of vernier calipers etc., measure the heights of the reel-supporting

faces of the S reel table and Tu reel table from the top face of the master plane and check that the measured heights satisfy the set values. (Fig.3) When measuring the height of the S reel table, push the tip of the tension pole with your finger in the direction shown by Arrow A to release the tension band. (Fig.1)

(5) If the measured height does not satisfy the set value, replace the reel table

and make checking again.

<Note> After replacement, select the L start mode (see 9-1) and check that the

reel table rotates smoothly.

Reel-supporting face

2.4±0.1

Set value of height

of reel table

（3）

Fig.3

MIC contact

Fig.2 Checking of reel table

2.4±0.1

Set value of height

of reel table

Page 15

VL-Z7U/Z75U/Z8U

7-4. Checking and adjusting of tension pole position during REC (PB)

3 to 4V DC, Cassette controller assembly not installed (Mechanism only)

(1) Checking

Check that the tension pole is located in the prescribed position as shown in Fig.4 at the start of a 60-minute tape. If the tension pole is not located in the prescribed position, take out the tape and make adjustment according to the procedure shown below.

(2) Adjusting (See Fig.4.)

1. Select the PB mode without setting a tape.

2. Slightly loosen the screw 1 (to such an extent that the T band adjustment base 2 can be moved.)

3. If the tension pole is dislocated inward from the prescribed position, shift the T band adjustment base 2 in the direction shown by Arrow (A). If it is dislocated outward from the prescribed position, shift the T band adjustment base 2 in the direction shown by Arrow (B). Then fix the T band adjustment base 2 with the screw 1. (For how much the T band adjustment base is to be shifted, refer to Fig.4.)

4. Check the tension pole position as described in "(1) Checking" above.

5. If out of position, make readjustment.

7-5. Checking and adjusting of REC (PB) back tension torque

AC adapter used, Cassette controller assembly installed (1) Checking

Set the torque cassette (SD-1015). In the SP record mode (or in the PB mode if signals have been SP-recorded on the tape), check that the feed-side torque is within the following spec.

<Spec>(If there is a torque ripple, read the center value.)

0.55 ± 0.05N·m

(2) Adjusting (See Fig.5.)

If the measured back tension torque is out of spec, make adjustment according to the following procedure.

1. Slightly loosen the screw 3.

2. If the back tension is higher, shift the T-SPR adjustment ANG in the direction shown by Arrow (D). If it is lower, shift the T-SPR adjustment ANG in the direction shown by Arrow (C).

3. After adjusting the back tension torque, fix the T-SPR adjustment ANG with the screw 3. Apply loctite adhesive to screw 3.

Screw tightening torque: 0.04 N·m

Apply loctite adhesive.

Tension pole position (Based on drum base outside shape)

0±0.3

Fig.4 Adjusting of position (tape exists)

Fig.5 Checking (tape exists)

Drum base

T pole

T band adjustment base 2

Screw 1

Screw 3

T-SPR adjustment ANG4

7-6. Checking of S reel table unloaded torque

3 to 4V DC, Cassette controller assembly not installed (Mechanism only) (1) Remove the cassette controller assembly, apply 3 to 4V DC to the loading motor

and select the L start mode. (See 9-1.)

(2) Move the swing arm to the Tu reel table side. At this time, take care not to damage

the gears etc. (See Fig.6.) (3) Set the reel hub for back tension measurement on the S reel table. (4) Using the dial tension gauge, pull the thread of the reel hub in the direction shown

by Arrow A and check that the tension is within spec. <Spec>

(If the tension fluctuates, read the center value.) 10mN or less

Fig.6 How to measure the S reel table unloaded torque

Move the swing arm to

the Tu reel table side.

Page 16

VL-Z7U/Z75U/Z8U

7-7. Checking of loading back tension

3 to 4V DC, Cassette controller assembly not installed (Mechanism only)

(1) Apply 3 to 4V DC to the loading motor and select the L start mode. (See 9-1.) (2) Move the swing arm to the S reel table side. At this time, take care not to damage

the gears etc. (See Fig.7.) (3) Set the reel hub for back tension measurement on the Tu reel table. (4) Using the dial tension gauge, pull the thread of the reel hub in the direction shown

by Arrow A and check that the tension is within spec. <Spec>

(If the tension fluctuates, read the center value.)

27.5 ± 7.5mN

7-8. Checking of VS-REW back tension

3 to 4V DC, Cassette controller assembly not installed (Mechanism only) (1) Apply 3 to 4V DC to the loading motor and select the VS-REW mode. (See 9-1.) (2) Move the swing arm to the S reel table side. At this time, take care not to damage

the gears etc. (3) Set the torque gauge in the Tu reel table. (4) While turning the torque gauge counterclockwise (one turn in three seconds),

check that the torque is within spec. <Spec>

(If the tension fluctuates, read the center value.)

0.8+0.2/-0.05mN·m

Move the swing arm to the S reel table side.

Fig.7 How to measure the loading back tension

7-9. Checking of pinch roller press force

3V DC, Cassette controller assembly not installed (Mechanism only) (1) Hook the thread for pinch roller press force measurement over the pinch lever (position A in Fig.8). (2) Put the mechanism into the PB mode to press the pinch roller against the capstan shaft. (3) Hook the thread for pinch roller press force measurement over the tension gauge and pull the tension gauge in the direction shown

by Arrow B in Fig.10 so that the pinch roller is slightly separated from the capstan shaft.

(4) Return the pinch roller gradually and read the value indicated when the pinch roller comes in parallel contact with the capstan shaft

(see Fig.9). Check that the read value is within the following spec.

<Spec>

1.8+0.4/-0.4N

<Note> After measuring the press force of the pinch roller, promptly exit from the PB mode to separate the pinch roller from the capstan

shaft. (If the pinch roller is left pressed against the capstan shaft for a long time, the pinch roller will be deformed.)

Capstan shaft

Pinch roller

Fig.8

Fig.9

Right guide

Fig.10

Page 17

VL-Z7U/Z75U/Z8U

8. ADJUSTMENT OF RUNNING SYSTEM

8-1. Outline of adjustment of running system

(Replacement parts)

· Tu guide and arm

· Slide chassis

(Replacement parts other than above)

· Pole base

· Guide roller

· Drum assembly

· Cap motor, etc.

8-2. Adjustment of height of running system

· After replacement of the Tu guide and slide chassis, adjust the height of the Tu guide using the height adjustment jig.

· If wrinkles are found in the tape, turn the Tu guide to remove them.

(For further details, refer to "Coarse adjustment of running system".)

· After adjusting the Tu guide height, apply screw loctite at the tip of the shaft.

Readjustment of height

Presetting of height not necessary

Tu guide

Installation of cassette controller

View A

Preparations for adjustment of Running system Adjusting procedure(8-3)

Height adjustment jig

Coarse adjustment of Running system Adjusting procedure(8-4)

Final adjustment of Running system Adjusting procedure(8-5)

Bottom edge

Apply it in this direction.

Master plane

Height adjustment jig

View A

Align the top face of the lower flange of the Tu guide with the bottom edge of the height adjustment jig. After adjusting the height, turn the head clockwise 180 degrees.

Master plane

8-3. Preparations for adjustment of running system

Measuring instrument and Jig : Oscilloscope, Adjustment remote control, Height adjustment screwdriver, Alignment tapes (for

adjustment of running system and adjustment of SW point), Master plane, Height adjustment jig

(1) Clean the surfaces that come in contact with the tape. (Clean

well the drum surface and the lower drum helical surface in

particular.) (2) Install the cassette controller. (3) Connect the oscilloscope to each TP of the joint circuit board. (4) Turn ON the power of the AC adapter. (5) Select TEST mode T-05 with the adjustment remote control. (6) Play back the alignment tape for running system adjustment

and check that the tape is moving in the SP mode. (7) While observing the PB envelope on the oscilloscope, adjust

the running system so that the envelope becomes flat in

states of [+1/4 shift] and [-1/4 shift].

(Each time the PB key is pressed, the shift amount changes

as shown below.)

+1/4 shift - Normal - -1/4 shift - Normal

S guide

Tension pole

Sup guide roller

Drum

Tu guide roller

Tu guide

Capstan shaft

Pinch roller

Reel

Page 18

VL-Z7U/Z75U/Z8U

8-4. Coarse adjustment of running system

(Cassette controller installed)

1. Adjustment of height of Su and Tu guide rollers

(1)Play back the alignment tape for running system

adjustment and make adjustment so that the inlet and outlet sides of the envelope become flat.

(2)In states of [+1/4 shift] and [-1/4 shift], make

adjustment in the same manner as described in (1) above.

2. Checking of V/SR envelope waveform

(1) In the V/SR mode, check that the envelope waveform

is shaped uniformly.

(2) If the envelope waveform is not shaped uniformly,

fine-adjust the guide roller and Tu guide.

±1/4 shift

Inlet side Outlet side

Normal

Make adjustment so that A B.

±1/4 shift

3. Checking for wrinkles in tape

(1) In the PB mode and V/SR mode, check the tape for

distortion between the Tu guide and the pinch roller.

- If wrinkles are found, make adjustment within a

range of ±180 degrees.

Pinch roller

Wrinkle

Tu guide

Distortion

- After making adjustment, apply loctite adhesive to

the tip of the shaft.

4. Checking of envelope waveform rise time

(1) Check the envelope waveform rise time in switching from the V/SR mode to the PB mode. - 5 seconds or less (2) Check the envelope waveform rise time in switching from the STOP mode to the PB mode. - 5 seconds or less

8-5. Final adjustment of running system

(Cassette controller installed)

1. Adjustment of height of Sup and Tu guide rollers

(1) If the ratio of MIN to MAN of the envelope waveform is less

than 60%, adjust the height of the guide roller again. (See Fig.1.)

(2) Perform unloading and then loading again, select the PB

mode and check that there are no significant changes in the envelope waveform.

Fig.1

2. Adjustment of PB SWP

(1) Play back the alignment tape for SW point adjustment. (2) Using the adjustment remote control, make SWP automatic adjustment. (3) Check that an OK is given as a result of self-judgment. In the case of a NG, adjust the GR height again.

* After replacement of the mechanism and drum, adjust the phase and equalizer using the adjustment remote control. (Refer to "10. ADJUSTING THE ELECTRICAL CIRCUITS".)

Page 19

VL-Z7U/Z75U/Z8U

9. ASSEMBLING OF MECHANISM SECTION AND PART REPLACEMENT (DISASSEMBLING AND ASSEMBLING)

This section describes the method of assembling the mechanism section and the method of part replacement. For how to remove the cabinet etc., refer to " 4. DISASSEMBLY OF THE SET".

1. Cut washers removed at the time of part replacement etc. should be replaced with new ones without fail.

2. When assembling the mechanism, take care to prevent screws, washers and foreign matter from getting into it. If such things get into the mechanism, it will cause the mechanism to malfunction.

3. Be sure to use the specified cleaning liquid, oil, grease and loctite adhesive shown below. Failure to do so will cause the mechanism to malfunction.

Oil: Cosmo Hydro HV22 (Cosmo Oil) Loctite adhesive: 1401B (Three Bond) Grease: Molykote YM-103 (Dow Corning), Suncall CFD-409Z (Sankei Chemical Co., LTD.) Cleaning liquid: Industrial ethyl alcohol

9-1. Mechanism mode

To operate the mechanism singly, apply 3 to 4V DC to the loading motor. (Do not apply external voltage to the loading motor with the mechanism connected with the main circuit board. Doing so could cause a failure.)

(1) Ejection mode

This mode is used to take out a cassette. In this mode, the ejection lever is shifted farthest in the direction shown by Arrow A. (In this mode, the cassette controller assembly cannot be locked.)

(2) Standby mode

This mode is used to set a cassette. In this mode, the slide chassis is farthest away from the drum and the ejection lever is turned (the cassette controller assembly can be locked). (The tip of the ejection lever is hidden behind the main chassis and the moving part of the down SW is visible.)

Ejection lever

Ａ

Back view

Main chassis

EJECTION MODE

(3) L start mode

This mode is used for the Tu reel hub to take up the tape of a cassette whose leader tape is visible. (In this mode, the S main brake is located away from the S reel table.)

Down SW (moving part)

Ejection lever

Main chassis

STANDBY MODE

(4) Stop mode

This mode is used for stopping (camera mode: RecLock). In this mode, the S and T pole bases are pressed against the drum base and the S main brake is engaged with the S reel table. However the pinch roller and capstan shaft are separated.

S pole base

Drum base

T pole base

Capstan shaft

Back view

Pinch roller

S reel table

S main brake

L START MODE

S reel table

S main brake

STOP MODE

Page 20

VL-Z7U/Z75U/Z8U

(5)PB (Record, Fast forward, Fast rewind, VSF and VSR)

mode This mode is used for playback, recording, fast-forwarding, fast -rewinding, VSF and VSR. In this mode, the pinch roller is pressed against the capstan shaft and the S main brake is located away from the S reel table.

Capstan shaft

Pinch roller

S reel table

S main brake

PB (RECORD, FAST FORWARD,

FAST REWIND, VSF AND VSR) MODE

9-2. Cassette controller assembly

<Procedure for removing the cassette controller> (The cassette controller can be installed and removed without removing the cover.) (1) Apply 3 to 4V DC to the loading motor to establish the standby mode. When removing the cover from the cassette controller, remove

the tow screws (A). (See Fig.1.) (2) Push the lock lever in the direction shown by the arrow and move up the cassette controller. (See Fig.2.) (3) Remove the two screws (C) and remove the down guide (D) in the direction shown by the arrow (E). (See Fig.3 and Fig.4.) (4) Shift the cassette controller in the direction shown by the arrow (F), remove the inner arm guide shaft L and the groove of the inner

arm R toward the inside of the mechanism, and turn the cassette controller. (See Fig.5 and Fig.6.) (5) Turn the cassette controller in the direction shown by the arrow (H) and shift it in the direction shown by the arrow (I) to remove it

from the slide chassis. (See Fig.7.)

(A)

At this position, remove the inner arm guide shaft L toward the inside of the mechanism.

Fig.1 Fig.2

(C)

(D)Down guide

Fig.3

(F)

Fig.5 Fig.6

Fig.4

(F)

(B)

At this position, remove the groove of the inner arm R toward the inside of the mechanism.

Page 21

VL-Z7U/Z75U/Z8U

Fig.7

Fig.8

9-3. Method of operating on the circuit board with the cassette controller assembly removed

If this method is performed improperly, the tape may be damaged. Therefore do not use this method except in special cases such as measuring the VSR torque. Be sure to follow the cautions shown in this manual.

(1) Apply 3 to 4V DC to the loading motor to establish the standby mode. (2 Insert a sheet of thick paper folded in two as shown in Fig.9 into the position shown in Fig.10 to turn OFF the down SW.

(Pass the paper along the heavy line in the figure.) Note) To go into the REC mode, press the pin of the recognition SW.

(3 Selecting the test mode (T-01) with the adjustment remote control without setting a tape will make it possible to operate

the mechanism with the mode keys.

(4) For ejecting, remove the paper inserted in step (2) above.

Pass the folded paper between the slide chassis and the lock cam to press the moving part of the down SW.

34~36

５

Fold a sheet of paper in two.

Fig.9

Recognition SW pin

Fig.10

Press

Moving part of down SW

Page 22

VL-Z7U/Z75U/Z8U

9-4. Phase-adjust

Phase-adjust the following parts.

(1) Mode SW (2) Main cam (3) Sub cam (The main cam and sub cam should be also phase-adjusted for the chassis.) (4) S loading arm (5) Tu loading arm

(6) Loading drive gear (main cam, sub cam, S loading gear) Note) Check the marker position carefully before disassembling. Note) When installing the loading drive gear, check that the main cam, sub cam, S loading gear are all phase-adjusted.

(5)Tu loading arm ass'y(4)S Loading arm ass'y

(1)Mode SW

Phase adjustment

Phase adjustment mark

hole (for chassis)

(3)Sub cam

Phase adjustment (gear section)

Phase adjustment hole (for chassis)

(2)Main cam

Phase adjustment mark

(4)S loading arm ass'y

Phase adjustment mark

Phase adjustment hole (for chassis)

(6)Loading gear drive gear

Fig.1

(5)Tu loading arm ass'y

Fig.2

Page 23

9-5. Assembling method

9-5-1. Method of assembling the main chassis assembly

Note) For reference, numbers are prefixed to parts names to show the sequence of assembly. (For the greasing/oiling and cleaning locations, refer to the diagram of greasing/oiling locations.)

VL-Z7U/Z75U/Z8U

302

(1)Mode SW

304

(3)Main cam

(4)T arm operating lever

(3)S brake operating lever

308

307

(2)SL drive lever

303

(2)LM/Mode FPC

305

(4)Ejection lever

Type

Tightening torque

A M1.4xL1.6(Special screw) 0.4mN·m2

309

306

(1)Sub cam

Q'ty

321

(4)S pole base loading arm ass'y

322

(6)S Loading gear

324

(2)Loading drive gear

(1)T pole base loading arm

(5)S press SPR

323

ass'y

320

319

(3)Tu loading gear

Type

318

(2)Tu press SPR

(7)S loading arm sub ass'y

Phase adjustment

Tightening torque

D S Tight M1.4xL3.0 0.4mN·m3

E M1.4xL2.0

(t0.2 special screw)

325

(1)Guide rail

0.4mN·m1

Q'ty

In alignment with chassis hole

BCWø1.2-ø3.0t-0.25 1

Type

Tightening torque

Q'ty

Phase adjustment (back)

HCWø0.7-ø1.8-t0.2 1

In alignment with

316

(7)Relay pulley

314

(1)SLA support

310

Type

(4)TLA support

(3)DEW sensor

312

311

(2)L Motor ass'y

(5)Center gear

315

(7)Capstan motor ass'y

313

(6)CAP FPC protection tape

Tightening torque

Q'ty

chassis hole

(1)Pinch press lever ass'y

(2)Pinch press SPR

C S Tight M1.4xL2.0 0.4mN·m5

D S Tight M1.4xL3.0 0.4mN·m1

BCWø1.2-ø3.0t-0.25 1

Phase adjustment (front)

F M1.4xL1.5

Type

(t0.2 special screw)

Tightening torque

Q'ty

0.4mN·m1

G M1.2xL4.6 0.4mN·m1

(t0.2 particularly special screw)

BCWø1.2-ø3.0t-0.25 1

326

327

329

(3)Pinch lever ass'y

Type

328

(4)Pinch lever return SPR

Tightening torque

HCWø0.7-ø1.8-t0.2 1

Q'ty

Page 24

VL-Z7U/Z75U/Z8U

9-5-2. Method of assembling the slide chassis assembly

(2)T-SPR adjustment ANG

343

(19)T arm SPR

(8)Guide nut

349

(6)Tu guide flange

347

(7)Tu guide

Type

348

(6)Tu guide flange

347

(5)Guide adjustment SPR

346

(4)Tu guide arm ass'y

345

344

Tightening torque

(1)Slide adjustment ANG

342

(3)Tu guide arm SPR

I Precision type 2·M1.4xL1.0 0.4mN·m2

359

357

(17)Tension arm ass'y

Q'ty

(15)S main brake

355

(13)S reel table ass'y

(16)S brake SPR

356

(14)Tu reel table ass'y

353

354

(11)T main brake

352

351

(10)T brake gear

350

(9)VSR brake lever

(18)Tension band ass'y

358

Type

Tightening torque

Q'ty

C S Tight M1.4xL2.0 0.4mN·m1

(Tightening fully)

0.05mN·m

(Tightening temporarily)

HCWø0.7-ø1.8-t0.2 1

Page 25

VL-Z7U/Z75U/Z8U

377

(22)Drum ass'y

371

(20)Swing arm ass'y

372

(21)Reel cover ass'y

9-5-3. Method of combining the main chassis assembly and the slide chassis assembly

(1) Position the assemblies as shown in the figure below (the pole base is slightly protruded). (2) Insert the operation pins (tension arm, Tu guide arm) of the slide chassis assembly into the locations of the main chassis assembly

shown in the figure below, fit the SL drive lever pin of the main chassis assembly into the groove of the slide chassis (the groove of the slide adjustment ANG), and then fix with the two screws.

Type

C S Tight M1.4xL2.0 0.4mN·m2

D S Tight M1.4xL3.0 0.4mN·m1

JWø2.1-ø4-t0.25 2

Tightening torque

Q'ty

Type

D S Tight M1.4xL3.0 0.4mN·m1

I Precision type 2·M1.4xL1.0 0.4mN·m2

Tightening torque

Q'ty

Page 26

VL-Z7U/Z75U/Z8U

9-5-4. Diagram of greasing/oiling locations

Page 27

9-6. Method of installing the cassette controller

(2)Completed cassette controller

VL-Z7U/Z75U/Z8U

Left side view Right side view

Left side view

B-1 B-2

Left side view Right side view

(3)Down guide

(1)Main slide ass'y

A-1

A-2

Right side view

B-1、2

Mechanism viewed from above

A Ml1.4xL2.0(Precision type 2) 0.4mN·m2

Type

B M1.7x2.5(Precision type 2) 2

Tightening torque

Q'ty

(4)Cassette cover

Right side view

C: Move down the cassette controller by pushing this

portion. When the cassette controller is locked, attach the cassette cover.

Page 28

VL-Z7U/Z75U/Z8U

9-7. Method of taking out the cassette with the mechanism operating singly

(1) Apply 3 to 4V DC to the loading motor for slight unloading. (2) If the tape is slack, turn the rotor (mechanism backside) of the capstan motor by hand to take up the slack in the tape. (3) Repeat steps (1) and (2) above. When the pole base is completely unloaded, check that the tape is not slack. (4) Then apply 3 to 4V DC to the loading motor again. The cassette controller will move up. (5) Take out the cassette. Note) When applying 3 to 4V DC to the loading motor for unloading, do so as shown in Fig.1.

Direction of rotation of the rotor of the capstan motor (from mechanism backside)

Loading motor

pole

＋○

pole

−○

Fig.1

Page 29

VL-Z7U/Z75U/Z8U

10. METHOD OF ADJUSTING THE ELECTRIC CIRCUIT

-Before making adjustment-

· It seems that, in most cases, this adjusting method is used when it becomes necessary to adjust the electric circuit as a result of replacement of worn mechanism parts or the video head. When adjusting the electric circuit, check that the mechanism operates properly (the mechanism is adjusted completely). If a failure occurs in the electric circuit, be sure to locate the fault using a measuring instrument and then perform repairing, replacement and adjustment, as described in this adjusting method. Avoid performing undue adjustments etc. without using proper measuring instruments.

· The electric circuit components in the circuit board unit of this product are densely-packed into packages. Most of them are surfacemounted for downsizing. When replacing components in servicing the product, perform replacement work swiftly with a soldering iron. In general, surface-mounted components are inferior in heat resistance to large-sized discrete components used in TV sets, stationary decks, etc. Heating the electrode of a surface-mounted component with a soldering iron for a long time needlessly will therefore lead to a failure. Take great care not to do so. Take special care in this respect when replacing chip multilayer capacitors in particular.

We recommend you to use a ceramic soldering iron (Tip temperature: 250°C, Contact time: 5 seconds or less).

10-1. Adjustment of liquid crystal video section

List of measuring jigs

・ColormonitorTV

・Digitalvoltmeter

・DCpowersource ・Audiogenerator

(CRoscillator) ・Frequencycounter ・ACadapter

・StereoAVoutputcable(supplied) ・Adjustmentremotecontrol

(RRMCG0033TASA) ・Signalgenerator (NTSCpatterngeneratorLCG-401/ 401YC:ManufacturedbyLeader) ・Oscilloscope

・Vectorscope ・Tapeforrecording ・DCcable(suppliedwithACadapter) ・Extensionwireofvideosection ・Alignmenttape

・

Errorrateadjustmenttape(referencetape)

90ADDVC-TAPE(colorbar)

RTPEVA001WJZZ

VL-Z7U/Z75U/Z8U

No. Connection section Connector REF. No.

Specifications of service jigs

No. of pins

New/

Parts cord

Cont. code

1 H/A PWB — MAIN PWB1 SC307—SC3302 33P N QCNW-B315WJZZ AN 2 H/A PWB — MAIN PWB2 SC308—SC3301 33P N QCNW-B315WJZZ AN

4 MAIN — LITHIUM PWB SC8800—SC5800 27P-25P QPWBHB742WJZZ Product FPC used AE

5 MAIN — RUNTA005WJZZ SC1201 80P C QCNW-1373TAZZ BQ

6 RUNTA005WJZZ — SUB P2901 80P N RUNTZA005WJZZ AX

7 Hot shoe — SUB —SC501 15P QPWBHB739WJZZ Product FPC used AH

8 Menu key — SUB SC2002—SC501 9P-15P QPWBHB739WJZZ Product FPC used AH

9 H/A PWB — MAIN PWB P301—P3301 5P QCNW-B171WJZZ Product wire used AF

TP jig for envelope checking

11 Power supply SC310—SC2101 12P QCNW-B167WJZZ Product FFC used AC

12 ZOOM SC311—SC2201 10P C QCNW-1769TAZZ BF

13 CCD PWB — MAIN SC1001—SC1202 33P QPWBHB738WJZZ Product FPC used AD

14 Lens unit — SUB SC551 25P CLNS-A005RMA5 Product unit used BQ

15 MIC — SUB P3602 4P RMiCC0108TAZZ Product unit used AP

16 FLASH — MAIN —SC1204 12P QPWBHB740WJZZ Product FFC used AD

17 MECHA TURN — MAIN P1201 2P DUNTKB732PM00 Product unit used AG

19 SPEAKER — ZOOM P2201 2P VSP0020P-B2WN Product unit used AK

20 LCD UNIT — MAIN SC1800/SC1801 18Px2 QPWBHB736WJZZ Product FPC used AR

P3303 30B-B N RUNTZA004WJZZ AW

Price

Page 30

VL-Z7U/Z75U/Z8U

Lens

CCD PWB

QPWBHB738WJZZ

HEAD AMP PWB

SC303

SC307

SC301 SC308

SC304

SC310

SC306

SC311

SC305

P301

QCNW-B171WJZZ

LCD

LAMP

FLASH

ZOOM PWB

P2201

SC2201

SPEAKER

HOT Shoe

SC2002

SC5800

SC5801

USB

BAT

P900

SC1501

SC501

J600

J7401

J1401

J2900

P3602

SUB PWB

P2901

SC1201

W8089

P3303

SC3302

SC3301

P1201

P3301

SC1801

SC1800

SC1204

MAIN PWB

SC8800

VF_IF

P8800

RMiCC0108WJZZ

POWER SW

QMPWCB734WJZZ

SC802

LCD PWB

SC801 SC800

SC803

SC9800

18 18

SC551

1818

SC1202

MECHA TURN

SC2101

QPWBHB740WJZZ

QCNW-1373TAZZ

RUNTXA005WJZZ

RUNTZA004WJZZ

SC1001

QPWBHB742WJZZ

QPWBHB739WJZZ

QCNW-B315WJZZ

QCNW-B167WJZZ

QCNW-1769TAZZ

QPWBHB736WJZZ

Mechanism

*1: Under surface contact

*2: Top surface contact

Caution: Don't make a mistake in putting in SC3301 and SC3302.

HOLE SENSOR

VL-Z7U/Z75U/Z8U Service jig configuration

Page 31

[TEST POINT]

TL7824(VF_G_OUT) VF_DAC full scale

TL6807(G_OUT) DAC full scale

TL1431

R717 R728 C713

C711

R743

R714

TL701

TL3303

R744

C731

R709

R702

C703

R742

R712 C716

R723

R705

R724

R732

P3301

C1809

R1824

R1823

C1810

SC1800

C1439

C1438R1442

(Wiring board diagram: Main Side A)

TL3304

TL3302

SC3301

TL3310

X702

R756 R760 R764

R761 R765 R766

R745 R722 R762

C719

R746

R748

C720

C709

IC706

R754

C728

R751 R753 C726

C725 R752 C723

C737

R750

R757

C730

IC701

R707 R715 C735

R729

R759

C710

R741

C733

C708

R736

R737

R763

R738

Q704

R1802

R718

R1801

R771

Q705

C1802

R1805

R772

C704

R1800

R1818

R747

R1422

R1402

R1419

Q1402

C1406

C1407

R1406

C1416

R1405

C1402

IC1401

C1410

C1441 L1404

C1408

IC1431

L1431

Q1431 L1802

C1431

R1437

C1435

R1436 C1801

Q1433

C1434R1432

R1434

R1433

R1435

R755

R758

Q1800

R1803

R1804

R1806

R1413

C1418

C1409

C1437

R1440

R1441

C1440

C1432

R1431

Q1432

C1433

Q1802

R735

R725

R720

C1805

R1814

R1813

Q1801

R1817

R1808C1803

C1806

R1820

C1804

R1811

R1807

R1810

R1816

R1819

C1800

C1411

C1412

R1414

Q1403

Q1404

R1423

R6802

R1462

R1461

R1424

R6816

R6817

R6803

Q1405

C6800

R6805

TL6804

TL6803

C1419

R1421

Q6801

R6806

R1404

C6802

R6804

R6813

C6801

C6807

R6810

R6800R1403C1417

R6807

R6812

R1439

C6804

R1438

R6809

Q1434

C1436

C4481

L4406

R4489

Q4483

L4404

Q4481

R4471

C4404

C4483 R1809

R4472

SC3302

TL913

R3321

C3321

R3320

C3320

C724R1932

Q703

R768

R749

C712

R779

R716

C722

R703

R704

R713

C707

R721

Q701 Q702

R734 R731 C729 R719

R711

C732

R782

C727

R730

R726

R727

C715

R708

R710

R706

X701

TL8803

C705

R1815

R1812

C1815

R1827

Q1803

R4402

R4401

C4402

C4401 L1800

C4405

IC6801

C6814

TL6807

R6819C6815

C6813

R6820R6818

C6816 FB4405

TL6809

TL7819

C6811

C6812

TL6801

TL6802

R6808

R6811

D6800

L6800

C6805

C4406

C4416

C4419R4494C6806 C6810

R4485

C4420

C4485

Q4482

C4409

R4486

C4407

C4482

R4488

R4487

IC704

C714

IC703

C7802

C7800

L7800

C4408

R4404

Q3320

L701

R701

C7806

C7804

TL7824

R7828R7831

IC4401

C4421

C4410

R932

C706

D701 C3716

R739

C734

R780 C702

L3405

C701

L3404

C1911

R1925

R1928

L8800

C8805 L8801

C8800

C7825

R7830

IC7802

R7827

C7803 Q1913

R7826

R7829

R4436

R4437

C4413

Q4432

R4435

VL-Z7U/Z75U/Z8U

Q908

C980

C955

C960

Q909 C953

L908

C939

FB3701

C3713

C3707

L918

L915

R982

C938

C1901

C3705

C3712

IC3701

R3709

R3712

R3708

R3738

R8842

Q3701

C982

TL902

C981

Q1991

R1991

TL901

L900

R1992

R1990

Q1990

C931

C930

C1990

Q903

Q900

C932 R970

TL8801(VF_COM) VF_COM

L901

C934

Q1901

TL910

C3708

TL908

Q1905

R1941

TL8804(VF_VG) VF_WB

FB8800

C1904

TL8805

TL8804

C3702 L3702

TL8806

C3709

R3710

R3718R3739

R8836

TL3701

R8834

R8835

C3701 L3701 L903 C933 L902 C936

C3703

R3737

C3711

C3706

TL3702

R3740

TL8805(VF_VR) VF_WB

TL8806(VF_VB) VF_WB

L917

C974

Q911

L923

C992

C991

R951

C3436

C3473

C978

Q1912

TL903

D960

R1926

R1924

TL904

R1927

Q8800

C8804

R8800

IC8800

C7805R8802 R8801

C4427

C7808

C7809

C7807

R4403

C7801

TL4439

TL4438

C4422C4414

C4436C4415

C4435

L916

C973

Q907

C975

L911

C990

C956

C962

D916

C929

R8804

C8801

C4403

C6803

L7810

R7811

C7810

R7812

R7800

C4428

R4415

C4418

C4417

R4495

TL4440

C4426

R4414

R4454

R4456

C4454 R7820R7832

X4451

R4451

C4451

C4462

C4424

C4423

R4462

R4461

R4460

C4465

C4463

Q906

R990

C972

R987 C970

R988 C971

Q904

C954

Q910

R983

L931

Q905

TL8801

C8806

R8805

Q8801

C8807

C8809

C7828

C7829

R7819R7833

R7838 C7812

D4452

L4451

D4451

FB4461

R4466

IC4461

L907

R8806

R8807

C8802

TL911

TL907

C8803

R8809

R8808R8817

C8813

R8814

R8828

R8819

R8820

C3710

R8827

TL8802

C8814

C7822

R7825

R7810

IC3702

R7824

R7840

D7810

C7830

R7836

R7834

C3704

R3705

R3717

Q7800

C7827

R7837 C8808

R7839

FL3702

R3706R3707

R4453

R3701

R3713

R3711

TL1801

R4463

C3714

C1811

TL3703

TH1800

Q4461

R1826

C4461

Q8804

C8822

R8840

R8839

R8841 Q8802

(Envelope checkup TP jig)

PCO D/A-Y

PCO D/A-C

Page 32

VL-Z7U/Z75U/Z8U

R824

C9805

SC803

TL852

C820

D801

TL870

(Wiring board diagram: LCD Side A)

TL803

TL9801

TL9802

TL9800

T9800

SC9800

R9810

R9801

C9804

TL853

IC9800

C9806

C9800

L9800

R9800

TL832

TL831

R9811

R9802

C9802

TL830

R9808

R9807

C9807

TL828

TL829

R9804

TL9805

TL9804

TL9803

R9805

R9812

Q9801

R9803

R9809

R9806

Q9802

TL826

D9800

TL825

R810

R811

Q801

Q800

R813

C815

R809

C816

R815

R814

C814

C805

C800

TL820

TL819

TL869

TL827

TL801

R802

TL811

TL812

C801

R800

L801

L800

IC800

TL823

TL821

TL824

TL822

C802

TL805

C808

R805

R801

TL843

IC801

C803

C804

TL813

TL807

TL809

TL806

TL808

TL810

R826

R827

R812

TL835

R825

C818

C813

C821

C809

R816

TL816

R803

R804

TL818

TL851

TL834

TL815

TL817

TL814

Q9800 C9801

C9803

SC801

SC800

TL800

TL847

TL848

D800

C817

TL850

TL849

C810

TL845

TL802

R806

TL846

R808

R807

TL844

C811

C812

TL838

R817

TL837

SC802

TL846(LCD_VG) LCD_contrast

TL842

IC802

R819

IC804

IC803

C807

Q802

(Wiring board diagram: Sub Side A) (Wiring board diagram: Sub Side B)

TL1472

Checking of EE level Checking of f characteristics

TL601

FB600

TL600

C602

VA603

VA602

TL602

C601

R652

VA600

C600

R600

VA601

R603

TL603

R7427

R7429

R7428

R7426

R2915

R604

C1501R1501

C1503R1502

C1502C1508

C1504R1503

C2904C1509

C1505R1504

C1506R1505

C1507R1506

R1510

R524

R1513R1512

TL510

TL508

TL506TL501

TL551

TL553TL557TL559TL561TL563TL567

TL568

TL571

R2914

C2906

D7402

D7401

C1510

C1513

R1507

R1508

R1509

Q1502

Q1501

R1511

D3601

C523

C525

D3600

C521

TL511

VA501

TL509

C522

TL507

SC501

TL505

TL502

TL504

R3635

FB3601

TL556

TL503

R3602

C3600

TL555

TL552

TL554

TL558

TL562TL560

SC551

TL564

TL566

TL569

TL570

TL1470

Checking of EE level Checking of f characteristics

TL1476

TL1470

TL1473

TL1472

TL1471

L2901

C2905

TL3603

C524

Q2903

C526

TL565

D551

R2523R2530

R2520

R2527

R2526

R2528

R2525R2531

C2520C2521

R578

R582

IC2502

Q552

C528

R527

R581

C2517 C2515R2515

R2512 R2533R2516

C2514

R2511

R2510

C2519

R2514C2518

R2509R2513 R2912

C2516

R2508

R2901 R1480

C2902

CP3

CP2

CP1

TL1477

SC1501

R2919

R2911

D2904

IC2901

Q2906

R2913

D2906

D2905

Q2902

C2903 R2907

R2909

R2908

C553

C554

C556

C558

C559

C561

R552

R553

R555

R559

R2556

R2555

Q2551

R2552

R2560

R2559

C3605

R3607

Q3600

R3605

R3603

C3601

C3602R3604

R3606C3603

R3611R3612

IC3600

L601

Q600

C507

R2905

Q2901

R2917

R2906

Q2905

R2904

Q2904

R2918

R2903

D2902

TL903

TL904

P900

TL902

C2910

TL901

R2910

TL900

C2901

R2916

L501

C503

C502

J600

TL3601(INT MIC L)

Checking of EE level Checking of f characteristics

C3624

C573

C574

R551

C555

C557

IC551

R554

C552

R557

C560

R2557

R2558

R2553

Q2552

Q2554

R3601

R3600 C621 R626

R630

R625

R629

R634

R636

C3604

C604

C603

Q605

Q2553

R623

R2551R2554

R661

R613

R615 Q3604

R620

C648

C606

R617

C618

R606

R2561

C609

C616

R621

C614

C607

C620

C2551

R639

C622

C624

C631

R627

C626

C629

C646

R638

R643

R641

C632 C635

R655

C637

C634

C640 R659 C636C639 R656

R648 C645 R645 R647 C649

R601

C641

C642

R602

R506

C506

R507

R505

R512

R508

Q601

FL501

R605

R504

R3644

R3643

IC503

R525

R3626

R3629

C3623

C551

L551

C3630

C3628

R3639

C3646

R3631

C3635

C3632

C3634

R3634

R3633

C644

R654

R3646

R610

R3632

C3631

Q603

C3629

C3626

C3625

R607

R3630

C3627

C647

C612

C611

C613

R618

C615

C619 R619

C628

IC600

C633 R633 R3642

C605

C638

R509 R501 C501

IC501

P2901

R1472

R1479

R1476

R1477

J7401

R1478

R1471

R1475

J1401

TL3602(INT MIC R)

Checking of EE level Checking of f characteristics

TL3601

C562

R3638

R3622

C3620

C3606

R3619

P3602

R3637

R3624

R3621

C3622

C3618

C3616

TL3602

IC3601

C3612

C3614

R3614

C3611

R3613

C3617

R3627

R3623

C3619R3615R3617

C3621

R3620

C3610

C3608

C3609

R3625

C650

R3628

R612

R3640

C610

C617

C608 R616 R614 R3610C3641

C651

R628

R624

R635

R631

R637

C627

L600

C3640

R3616

R3645

C643

C623

R653

R611

Q602

Q3602

C625

R622

C630

R651

R3618

Q604

Q3603

R632

C527

R658

L3601

R657

R526

C509

C529

R531

R510

R530

R502

R514

R513

Q501

R529

R528

Q502

R572

R573

C575

R523

R2920

J2900

C3613

R3636C3615

R3608

R3609R3641

L3600

C3607

L2900

Q3601

TL3600

Page 33

[Execution of adjustment] Adjustment of servo and system controller

1. System code setting

It is necessary to set the following data items after replacing IC705 (E2PROM). <Adjusting method> Select the VCR adjustment mode and set the data value at each address.

Code

Address 01 09 02 0A 03 0B 04 0C 05 0D 07 0F

Z7U 00 FF 01 FE 04 FB 00 FF 00 FF 03 FC

Z75U 02 FD 01 FE 04 FB 00 FF 00 FF 03 FC

Z8K 00 FF 01 FE 04 FB 00 FF 00 FF 03 FC

Code 1394/exif model name

Address 1A1 1A2 1A3 1A4 1A5 1A6 1A7 1A8 1A9 1BD 1BE . 1BF

Z7U 56 4C 2D 5A 37 55 00 00 00 00 00 00

Z75U 56 4C 2D 5A 37 35 55 00 00 00 00 00

Z8K 56 4C 2D 5A 38 55 00 00 00 00 00 00

* After replacing IC705 (E2PROM), make the following settings and then make adjustments.

(E2PROM) data table (1) Magnetic parametric system

Address 27 28 2B 25 26 Data 70 90 A0 70 A0

Specifications

Destination

Specifications

Menu setting

Software switching

Calendar

VL-Z7U/Z75U/Z8U

• Automatic adjustment

Mode VCR adjustment mode Adjusting 1) Using command 12, select the VCR adjustment mode. method 2) Using command 20, enable writing to the E

PROM.

3) Using command 22, set the above-shown system codes according to the model.

4) Using the command, inhibit writing to the E2PROM.

5) Using the command, exit the VCR adjustment mode.

Examples • Replacement of E2PROM (IC705)

• Manual adjustment

Mode VCR ADJ mode Adjusting 1) Set the CAM/OFF/VCR selector switch to VCR.

method 2) Press "CONTINUE" → "VCR adjustment" on the remote control to enter the VCR mode.

(At this time, "VCR ADJ" is displayed in the lower left part.) Enter the specified value at each address.

· Shown below is the procedure for setting.

3) Select an address by increasing or decreasing the flashing numeric value with the FF or REW key and press the PB key to confirm it.

4) Set the flashing numeric value to the specified value by increasing or decreasing it with the FF or REW key and press the PB key to confirm it.

5) Press the STOP key to make it possible to select an address.

6) Repeat steps (3), (4) and (5) above until all the data items are set. Then press "CONTINUE" to exit the VCR mode.

7) Set the CAM/OFF/VCR selector switch to OFF.

Examples ·Replacement of E2PROM (IC705)

2. Adjustment of HSWP

Mode VCR ADJ mode Adjusting 1) Select the video mode and play back the alignment tape.

method 2) Press "CONTINUE" → "HSWP ADJ" keys on the remote control.

→ HSWP adjustment execution (When the adjustment is completed, "GOOD" is displayed on the LCD and

ejecting is performed automatically.)

If adjustment cannot be made, "NG" is displayed on the LCD.

PROM

Examples · Replacement of mechanism · Replacement of E

Page 34

VL-Z7U/Z75U/Z8U

3. Adjustment of shutdown

Mode VCR adjustment mode Adjusting 1) Set a recordable tape and select the camera mode.

method 2) Press "CONTINUE" → "TEST SEL" on the adjustment remote control to enter the TEST mode (T-01 flashing).

3) Select T-03 with the FF and REW keys and press "PB" key.

4) Adjust the power supply voltage so that TL904(+) becomes 6.00V ± 50mV as viewed from TL900(-).

5) Press the "Display change" button on the main unit. Turn OFF the power.

Examples · Replacement of microcomputer (IC701), Regulator (IC704) and E

PROM (IC705)

ADJUSTMENT OF MAGNETIC PARAMETRIC CIRCUIT SYSTEM

1. Adjustment of PLL VCO

Mode VCR ADJ mode Adjusting 1) Play back the alignment tape. (A tape recorded on this unit may be used instead of the alignment tape.) method 2) Select the adjustment mode (V-ADJ).

3) Select address "2A" to call up the data.

4) Using the FF and REW keys, adjust the data value so that reproduced pictures are shown. (Even if block noise occurs at this time, it is allowable.)

Note: After the address "2A" data has been adjusted, be sure to make the error rate adjustment.

Examples · Replacement of circuit board (main) · Replacement of E2PROM

2. Adjustment of phase and equalizer → (To be performed in the VCR mode)

Mode VCR ADJ mode Adjusting 1) Set a error rate adjustment tape (RTPEVA001WJZZ). method 2) Select test mode 0F using the adjustment remote control. Automatic adjustment will be started (the following

sequence will be performed automatically).

OK: Blue indication on LCD

NG: Red indication on LCD

Recording of built-in VI/O color bar

VS REW

Automatic adjustment of phase and equalizer

Judgment

3) Turn ON and OFF the power.

4) Checking of error rate

Select test mode 0B using the adjustment remote control.

5) Manual adjusting method (video adjustment mode)

* In this adjustment, play back a tape recorded on this unit in the LP mode. Change the data values at addresses 26 and 2B for the phase and the data values at addresses 25 and 27 for

the equalizer so that the error rate is minimized.

Sync error

Phase Equalizer H ch side 2B 27 L ch side 26 25

Error rate

Sync error 20 or less Error rate 200 or less (SP Mode)

330 or less (LP Mode)

Tape EJECT

Examples · Replacement of mechanism · Replacement of circuit board (main) · Replacement of E2PROM

Page 35

ADJUSTMENT OF VIDEO I/O CIRCUIT SYSTEM

;

VL-Z7U/Z75U/Z8U

(Envelope checkup TP jig)

1. Adjustment of PCO D/A-Y

Measurement point (On envelope checkup TP jig) Address VCR ADJ 566 Mode EE mode Adjusting method 1Disconnect the DC cable or battery from the unit.

2Connect the envelope checkup TP jig to P3303. 3Reconnect the DC cable or battery to the unit, and turn on the power. (on the shooting side)

1) Connect the AVS cable to the monitor (TO).

2) Select the adjustment mode (V-ADJ).

3) Select address "566" to call up the data. (A 100% white signal appears.)

4) Set the "Y" signal of the envelope checkup TP jig to 1.0 ± 0.05Vp-p by changing the data value

with the FF/REW keys.

Examples · Replacement of IC705, IC4401, IC1401

2. Adjustment of PCO D/A-C

Measurement point (On envelope checkup TP jig) Address VCR ADJ 567 Mode EE mode Adjusting method 1Disconnect the DC cable or battery from the unit.

2Connect the envelope checkup TP jig to P3303. 3Reconnect the DC cable or battery to the unit, and turn on the power. (on the shooting side)

1) Connect the AVS cable to the monitor (TO).

2) Select the adjustment mode (V-ADJ).

3) Select address "567" to call up the data.

4) Set the "C" signal of the envelope checkup TP jig to 0.64 ± 0.05Vp-p by changing the data value

with the FF/REW keys.

Examples · Replacement of IC705, IC4401, IC1401

;;;;

yyyy

;;;;

yyyy

;;;;

yyyy

;;;;

yyyy

PCO D/A-Y

PCO D/A-C

1.0 ± 0.05

0.64 ± 0.05

ADJUSTMENT OF VF CIRCUIT

(Wiring board diagram: Main Side A)

R707 R71

R736

C708

R738

Q704

R718

P3301

R771

Q705

R772

C704

R747

R1402

Q1402

C1809

R1824

TL7824(VF_G_OUT) VF_DAC full scale

1. Setteing of parameters (Main PWB)

* Preset the following data.

Address 582 585 597 5B9 5E4 5E5 NTSC 3D 40 40 ——— PAL ———40 32 32

R1823

C1810

SC1800

C1439

L1802

C1416

R1406

C1402

C1441 L1404

C1408

R729

R737

C1801

R1801

C1802

R1800

R1422

R1419

C1406

C1407

R1405

C1410

R759

C710

R763

R758

R1802

Q1800

R1805

R1818

R1804

R1413

C1418

IC1401

C1409

R710

R706

R741

R735

R1808C1803

C1804

R1803

R1807

R1819

R1806

R1461

Q1405

C1419

R1421

R1404

R6813

R6810

R6800R1403C1417

TL8803

C733

R755

Q1802

R725

R720

C705

R1815

C1805

R1814

R1813

R1812

C1815

Q1801

R1817

R1827

Q1803

C1806

R1820

R1809

R1811

R1810

C1411

Q1403

R1462

R4402

R1816

R4401

C1800

C4401 L1800

C4402

TL6804

Q1404

TL6803

C4405

IC6801

C6814

TL6807

R6819C6815

C6813

R6820R6818

C6816 FB4405

TL6809

R6816

TL7819

C6811

C6810

C6812

TL6801

TL6802

R6806

R6808

R6811

D6800

C1412

R1414

R1423

R6802

R1424

R6817

R6803

C6800

R6805

Q6801

C6802

R6804

C6801

C6807

R6807

R6812

X701

IC703

C7802

C7800

L7800

C1911

TL903

R1926

R1925

R1928

R1927

L8800

C8805 L8801

C8800

C7825

R7830

C7806

C7804

TL7824

IC7802

R7827

C7805R8802 R8801

C7803 Q1913

C7808

R7828R7831

R7826

R7829

Q1912

C962

C978

D960

R1924

TL904

Q8800

C8804

R8800

IC8800

C7809

C7801

C7807

C4427

Q905

D916

C929

R8807

TL8801

R8804

C8806

C8801

R8805

Q8801

C8807

R8819

R8820

C8809

C7822

C4403

R7825

R7810

R4403

C6803

R7824

L7810

R7840

D7810

C7830

C7810

R7811

R7836

R7800

R7812

R7834

C4428

C7828

R4415

C7827

C4418

C7829

R7820R7832

R7819R7833

R7837 C8808

R4495

C4417

7838 C7812

Q90

L907

R8806

C8802

TL911

TL907

C8803

R8809

Q8802

C939

R8808R8817

C8813

R8814

R8828

FB3701

R8827

TL8802

C3710

C8814

IC3702

R3717

C3704

R3705

Q7800

C93

TL8801(VF_COM) VF_COM

L901

C934

Q1901

L908

C938

TL910

C1901

C3708

TL908

Q1905

R1941

TL8804(VF_VG) VF_WB

FB8800

C1904

TL8805

TL8804

C3702 L3702

TL8806

C3712

C3709

C3705

R8836

R8834

R8835

1 L3701 L903 C933 L902

TL8805(VF_VR) VF_WB

TL8806(VF_VB) VF_WB

Page 36

VL-Z7U/Z75U/Z8U

C7808

2. Adjustment of VF_COM amplitude (Main PWB)

Measurement point TL8801(VF_COM) Address VCR ADJ 32 Procedure 1) Set the data value at address 5EB (TESTSW2) to 77.

2) Connect the digital voltmeter to TL8801 (VF_COM). At address 32 (VF_DAC_C), adjust the DC voltage to the adjustment rating.

Adjustment rating 3.75V ± 50mV

Examples · Replacement of IC705

3. Adjustment of VF_DAC full scale (Main PWB)

Measurement point TL7824(VF_G_OUT) Address VCR ADJ 59E

Procedure 1) Set the data values at addresses 587 (GRYLEV)/58C (γ PEAK)/5EB (TESTSW2) and 5E6 (OSDSW)

to FF/80/77 and 00, respectively. (The LED shows nothing.)

2) Set the data values at addresses 5A0 (CLAMP)/58D (PEDESTAL) and 5B9 (VCLK3 INV) to 00/80 and 48, respectively.

3) Connect the digital voltmeter to TL7824 (VF_G_OUT) and measure the DC voltage.

* The measured voltage is (DA_VF-G).

4) Set the data values at addresses 5A0 (CLAMP) and 58D (PEDESTAL) to 80 and 00, respectively.

5) At address 59E (VF_DAC_G), adjust the DC voltage to the adjustment rating.

6) Preset the data values at addresses 59D (VF_DAC_B) and 59F (VF_DAC_R) so that they are the same as the data value at address 59E (VF_DAC_G).

7) Reset the data at addresses 587 (GRYLEV)/58C (γ PEAK)/58D (PEDESTAL)/5A0 (CLAMP)/5B9

(VCLK3 INV)/5E6 (OSDSW) and 5EB (TESTSW2) to their original values.

(Initial values: 40/C5/38/28/42/71 and 7F)

Adjustment rating DA_VF-G +0.23V ± 10mV

Examples · Replacement of IC705, IC4401

4. Adjustment of VF_WB (Main PWB)

Measurement point TL8804(VF_VG), TL8805(VF_VR), TL8806(VF_VB) Address VCR ADJ 58E, 590 Procedure 1) Set the data values at addresses 587 (GRYLEV) and 5E6 (OSDSW) to 80 and 70, respectively.

2) Connect the oscilloscope to TL8804 (VF_VG) and TL8805 (VF_VR), and at address 58E (VF_WBR), adjust the amplitude to the adjustment rating.

3) Connect the oscilloscope to TL8804 (VF_VG) and TL8806 (VF_VB), and at address 590 (VF_WB_B), adjust the amplitude to the adjustment rating.

Adjustment rating 0mV ± 40mV, 0.1mV ± 40mV

Examples · Replacement of IC705, IC4401, IC8801

ADJUSTMENT OF LCD CIRCUIT

When making this adjustment, set the backlight switch to "Normal".

(Wiring board diagram: Main Side A)

C7800

IC7

R782

C681

L7800

R6820R681

C6816

C780

R7828R7831

C7803

R7826

R7829

IC4401

C4420

R4436

C4409

R4437

C4408

C4421

C4413

C4410

R4404

C4407

Q4432

R4435

TL6807(G_OUT) DAC full scale

C1407

C1810

C1402

SC1800

C1439

TL1431

C1438R1442

Q1431 L

R1413

C1418

R1405

R1406

C1416

R1461

Q1405

C1419

R1421

IC1401

R1404

R6813

R6810

R6800R1403C1417

C1410

C1441 L1404

C1409

C1408

C1437

R1440

IC1431

R1441

C1440

L1431

R1437

R1435

C1436

C1432

C1431

R1431

C1435

R1436

L4404

Q1432

Q1433

C1434R1432

R1434

R1433

C1433

IC68

R1414

TL6807

Q1403

R1423

R6802

R1462

R1424

R6803

C6800

R6804

C6807

R6812

R1439

R1438

Q1434

L4406

Q4483

C4404

R6819C681

C6813

Q1404

TL6809

R6816

TL7819

R6817

C6811

R6805

TL6804

TL6803

C6812

TL6801

Q6801

TL6802

R6806

R6808

R6811

C6802

D6800

C6801

R6807

L6800

C6804

C6805

R6809

C4406

C4481

R4489

C4416

C4419R4494C6806 C6810

R4485

C4485

Q4482

Q4481

R4486

R4488

R4487

C4482

R4471

C4483

R4472

1. Setteing of parameters (Main PWB)

* Preset the following data.

Address 046 047 048 049 099 0A5 0A6 0A7 0B5 406 407 408 409 427 435 40A 40B 41E NTSC 1E 54 6B 76 01 40 7E 15 64 7F 7F 20 20 E7 24 70 70 00

(Wiring board diagram: LCD Side A)

TL803

TL847

R827

C818

The same adjusting procedure and connections as described for the VCR section are used.

TL848

R826

R825

D800

C817

C821

TL850

TL849

C810

C809

TL845

TL802

R806

TL846

R808

R807

TL844

C811

C812

TL838

R816

R817

SC802

TL846(LCD_VG) LCD_contrast

Page 37

VL-Z7U/Z75U/Z8U

2. Adjustment of DAC full scale (Main PWB)

Measurement point TL6807(G_OUT) Address VCR ADJ 094(G) Mode VCR AV input Adjusting method 1) Set the data values at addresses 41E/086/41C and 410 to FF/80/77 and 00, respectively.

(The LED shows nothing.)

2) Set the data values at addresses 096/411 and 0A8 to 00/80 and 48, respectively.

3) Connect the digital voltmeter to TL6807 (G_OUT) and measure the DC voltage. * The measured voltage is (DA_VG).

4) Set the data values at addresses 096 and 411 to 80 and 00, respectively.

5) At address 094, adjust the DC voltage to the adjustment rating.

Preset the data values at addresses 093 and 095 so that they are the same as the data value at address 094.

7) Reset the data at addresses 41E/086/096/41C/411/0A8 and 410. (Initial value: 00/C5/28/7F/28/ 42 and 7D)

Adjustment rating DA_VG + 0.35V ± 10mV

Examples · Replacement of IC705, IC4401

3. Setteing of parameters (LCD PWB)

* Preset the following data.

Address 7C0 7C6 7C7 7CB NTSC 49 00 40 40 PAL 49 00 40 40

4. Adjustment of LCD_ contrast (LCD PWB)

Measurement point TL846(LCD_VG) Address VCR ADJ 7C3 Test signel 0.900V Procedure 1) Set the data value at address 41E (GRYLEV) to BE. (100% white display)

2) Set the data value at address 41C (TESTSW2) to 77. (1H inverted STOP)

3) Connect the digital voltmeter to TL846 (LCD_VG), and at address 7C3 (CONTRAST), adjust the DC voltage to the adjustment rating.

Adjustment rating ± 50mV

Examples · Replacement of IC801, IC800

5. Adjustment of COM-Bias (with the unit settings complete)

Measurement point LCD panel display surface Address VCR ADJ 7C9 Mode VCR AV input Adjusting method 1) Apply a 40% white signal to the AV input.

2) Set the illuminometer (TOPCON IM-3) on the LCD panel surface. (Cut off outside light.)

3) Minimize the ripple of the output waveform of the illuminometer.

Adjustment rating Minimum value

Remarks Make adjustment after five minutes or more of aging. Examples · Replacement of LCD panel · Replacement of IC800

Response time: 0.6 sec

6. Adjustment of W/B (with the unit settings complete)

Measurement point LCD panel display surface Address VCR ADJ 41F, VCR ADJ 421 Mode VCR AV input Adjusting method 1) Apply a 40% white signal to the AV input.

2) Apply a 40% white signal to the standard monitor. Make adjustment so that the image on the LCD becomes equivalent to the image on the standard monitor.

Remark Standard monitor Examples · Replacement of LCD panel · Replacement of IC4401, IC705

Page 38

VL-Z7U/Z75U/Z8U

ADJUSTMENT OF MIC AMP CIRCUIT

(Wiring board diagram: Sub Side A)

TL1472

Checking of EE level Checking of f characteristics

TL601

FB600

TL600

C602

VA603

VA602

TL602

C601

R652

VA600

C600

R603

R600

VA601

R7427

TL603

R7429

R7428

R7426

R2915

R604

C1501R1501

C1503R1502

C1502C1508

R2914

C2906

D7402

D7401

TL1470

Checking of EE level Checking of f characteristics

TL1476

TL1470

TL1473

TL1472

TL1471

L2901

C2905

R2901 R1480

CP3

CP2

CP1

TL1477

(Wiring board diagram: Sub Side B)

TL3601(INT MIC L)

Checking of EE level Checking of f characteristics

C3624

C553

C554

C556

C558

C559

C561

R552

R553

R555

R559

R2556

R2555

Q2551

Q2552

R2552

R2560

Q2554

R2559

C3605

C573

C574

R551

C555

C557

IC551

R554

C552

R557

C560

R610

R2557

R2558

R2553

C603

Q605

Q2553

R623

R2551R2554

R661

R613

R615 Q3604

R620

C648

C606

R617

C618

R606

R2561

C609

C616

R621

C614

C607

C620

C2551

R3626

C562

R3622

C3620

C3606

R3629

C3623

C551

L551

R3624

R3621

C3630

C3628

C3622

R3639

C3646

R3631

C3635

C3632

C3634

R3634

R3633

C644

R654

R3646

R3632

C3631

Q603

C3629

R607

C612

C611

C3618

IC3601

C3626

R3627

R3623

C3625

C3619R3615R3617

C3621

R3620

R3630

C3627

C647

R3625

R3628

C613

R618

C615

C610

C617

C608 R616 R614 R3610C3641

1. Checking of EE level (Sub PWB)

Measuring instrument Valve voltmeter Measurement point TL1472, TL1470

Mode P-ON (CAM) Adjustment rating -8dBs ± 3dB

Test signal 1kHz, -54dBs sine wave Adjusting method 1) Apply a 1kHz, -54dBs sine wave to TL3601 (INT MIC L) and TL3602 (INT MIC R).

2) Check that the signal levels of TL1472 Audio-L out and TL1470 Audio-R out satisfy the adjustment rating.

Examples

TL3602(INT MIC R)

Checking of EE level Checking of f characteristics

TL3601

R3638

R3619

P3602

R3637

C3616

TL3602

C3612

C3614

R3614

C3611

R3613

C3617

R3636C3615

R3608

C3613

C3610

C3608

C3609

C650

R612

R3640

R3609R3641

C3640

R36R3

C643

Q3601

2. Checking of f characteristics (Sub PWB)

Measuring instrument Valve voltmeter Test point TL1472, TL1470 Mode P-ON (CAM) Adjustment rating

(On a base of 1kHZ)

100Hz : -6dBs ± 3dB

10kHz : -3dBs ± 3dB

Test signal 100Hz and 10kHz , -54dBs sine wave Adjusting method 1) Apply a -54dBs, 100Hz sine wave and then a 10kHz , -54dBs sine wave to TL3601 (INT MIC L) and

TL3602 (INT MIC R).

2) Check that the signal levels of TL1472 Audio-L out and TL1470 Audio-R out satisfy the adjustment

rating on a base of 1kHZ in each case.

Examples

Setting of MODEL ID

Address VCR ADJ FD, FE, FF Mode VCR mode Setting rating 10, 20 Setting method 1) Using command 12, select the VCR adjustment mode.

2) Using command 20, enable writing to the E2PROM.

3) Set MODEL ID at each address.

Examples Replacement of E2PROM (IC705)

Address FDh FEh FFh Date 10h 20h Z7U 43

Z75U 5B Z8U 5E

Page 39

VL-Z7U/Z75U/Z8U

DV INTERFACE (IEEE1394) ID SETTING

This unit has a DV interface function conforming to IEEE1394. Each unit therefore must have its own ID number. Because this ID is written into the E

Address 180, 17F, 17E Mode VCR Setting rating ID number obtained from the URL below Setting method 1) Refer to the ID code application below.

Examples • Replacement of E

■ ID code application

1. Connect with the EUI48/64 ID code control system. (1) Start the Internet Explorer or Netscape Navigator. (2) Access the following address.(URL: http://www.rcg.kami.sharp.co.jp/quics/index.html) Select "EUI48/64 ID code control system" among the "Service" items. Note: If you want to establish a connection by directly inputting the URL, please input the following.

PROM (IC705) in the main PWB, it is necessary to newly write the ID newly when this IC is replaced.

2) Place the data acquired in step (1) at the corresponding address in the VCR mode. * Download an ID number and write it on the main unit according to the notice from the AV System Group "Issue

No.S8-001".

URL:http://www1.rcg.kami.sharp.co.jp:7000/adrs_agt/adrs_dba/ide00010.main The login screen will appear.

PROM (IC705 in main PWB)

(3) Input the [User ID] and [Password]. Click on [Login].

(4) Click on [EUI 64 (IEEE1394)] from

[1. Application of acquisition of application for ID].

Click

Page 40

VL-Z7U/Z75U/Z8U

(5) Click on [Repair use].

(6) Input the necessary information for the application.

Be sure to input the necessary input items. Select the [Group/company] and [Kind name] from the list. Input the [Model name] in half-size characters. Input the [Serial number] in half-size characters. Input the [Site/department] of repair in full-size characters.

Click

(7) Click on [Motion].

The confirmation screen will appear.

(8) Click on [Yes].

2. Print the application result. (1) Print out the application result screen.

Control the application result as evidence. To print it out, select "Print (P) "under "File (F)" on the menu bar or click on the print button on the tool bar.

(2) Click on [Menu] to complete the application.

If you make application in succession, repeat steps (1) to (8). To end it, click on [End] on the menu screen.

Page 41

10.2. Adjustment of camera section

10-2-1. Servicing of camera section

(1) Camera adjustment should be performed with the set completed. (2) Subjects, measuring instruments and jigs necessary for servicing and adjustment of the camera section

• Gray scale chart • Frequency counter • Video output cable

• Color bar chart • Illumination meter • AC adapter

• Oscilloscope • Color temperature meter • Extension cables

• Digital voltmeter • Color temperature conversion filter • Adjustment remote control

• Halogen lamp: 2 pcs. HOYA "LB-165"

• Vector scope • Color video monitor

10-2-2. List of camera jigs

Sketch <Note: Order of descriptions> 1. Jig name 2. Part code 3. Code

VL-Z7U/Z75U/Z8U

1. Gray scale chart (390 x 520 mm)

2. JiGCHART-1

3. CP

1. Color temperature conversion filter

(3200 degrees K ⇒ 6800

degrees K)

2. JiGHOYA-LB165

3. BN

1. Color bar chart (240 x 320 mm)

2. JiGCHART-4

3. DA

1. PC plate connector drawer

2. JiGTH-SS10

3. AW

1. Illuminometer (0 to 3000 lx)

2. JiGMETER-1

3. CT

1. Adjustment remote control

2. RRMCG0033TASA

3. BT

1. Color temperature meter (1600 to 40000 degrees K)

2. JiGMETER-2

3. EL

10-2-3. Adjustment of camera section

(1) Preparations and checking before adjustment

1) Adjust the lighting so that the illumination intensity is about 3000 lx and that uniform illumination is provided on the whole pattern. (It is desirable that two or more lamps be used as light sources.) Set the color temperature at 3200K.

2) The test pattern used should be free from stains and color deterioration.

3) If a failure occurs in the electric circuit, be sure to locate the fault using a measuring instrument and perform repairing or replacement before making adjustment of camera section.

(2) Adjustment remote control RRMCG0033TASA

The adjustment remote control (RRMCG0033TASA) is used to adjust the camera section of this unit. Adjustment is made by writing data into the E2PROM(IC705) at particular addresses using the remote control via the microcomputer.

1) To adjust the camera Press the "CONTINUE" key and then press the "CAM ADJ" key. The following display will appear on the LCD screen, allowing you to make adjustment.

CAM ADJ

2) Description of display

CAM ADJ (It means camera adjustment.)

(Address value) (Data value)

* This unit has addresses 0000 to 07FF. * Byte data (last two digits valid) and 2-byte data (last three digits valid) are available.

Page 42

VL-Z7U/Z75U/Z8U

3) Description of remote control keys "FF" key: It is used to increase the address value and data value. "REW" key: It is used to decrease the address value and data value. "PLAY" key: It is used to confirm the selected address to call up the data. It is also used to confirm the data value. "STOP" key: It is used to clear the data and make it possible to select an address.

4) Operation flow

FF or REW PLAY PLAY STOPFF or REW

Select an address, confirm the selected address to call up the data, adjust the data value, confirm the adjusted data value and return to address selecting.

5) After completion of adjustment Press the "CONTINUE" key to make the display "CAM ADJ" disappear. Note: Before pressing the "CONTINUE" key, check that the unit is not in the auto focus adjustment mode or the camera signal

system adjustment mode (described later).

Æ Camera section adjustment mode The auto focus adjustment mode and the camera signal system adjustment mode are used for adjustment of the camera section.

Note: The adjustment data are stored in the E2PROM as shown below. When making changes, it is therefore necessary to perform

rewriting of data and checking of the latest data.

1) E

PROM (IC705) on main unit

Lens-related data and signal system adjustment data

(3) Auto focus adjustment mode

· The camera of this unit features automatic focussing by means of a microcomputer. The auto focus circuit of this unit performs focusing operation based on the principle that the high frequency component in the video signal increases as focus is achieved. In addition, in order to achieve a large magnification with a small-size lens, the inner focus system is employed in which a master lens (rear lens) is moved forward and backward for focusing. This inner focus system enables full range focussing with a focal length range of 10 mm to infinite distance. However, because the maximum allowable distance from the closest subject to the tele end is 1.5 m, a subject less than 1.5 m away from the tele end cannot be focused on if it is shot at the tele end. In such cases, zooming-out is performed automatically for focusing.

The major factors of the auto focus system are as follows:

• Detection of master lens position

• Detection of iris position

• Detection of zoom lens reference position

These detection data are stored in the E

PROM.

Therefore (3) auto focus adjustment should be performed in the following cases.

• When the lens is replaced

• When the CCD is replaced

• When the E2PROM is replaced

• When the CCD circuit board and CAMHEAD circuit board are replaced

1) How to enter the auto focus adjustment mode Set the data value at address "13FE" to " 01".

]

The screen will be white-faded temporarily and the auto focus adjustment mode will be established.

* When the auto focus adjustment mode is established, make adjustment according to "(5) Camera adjusting procedure". * In the auto focus adjustment mode, lens operation cannot be performed.

2) How to enter the normal mode Set the data value at address "13FE" to " FF".

]

The screen will be white-faded temporarily and the normal mode will be established.

]

Pressing the "CONTINUE" key will make the display "CAM ADJ" disappear and make it possible to perform normal operation.

Page 43

VL-Z7U/Z75U/Z8U

2. Basic adjustment of iris and ND meter

1. Adjustment of auto focus

7. Adjustment of white balance

8. Adjustment of indoor white gain

9. Adjustment of color gain

3. Adjustment of black balance/Adjustment of A/F noise

4. Rough adjustment of iris AE

11. Adjustment of outdoor white gain

12. Adjustment of iris AE

5. Rough adjustment of white balance

6. Rough adjustment of color gain

10. Adjustment of auto white balance adjustment

(4) Camera signal system adjustment mode

In the camera signal system adjustment mode, the auto white balance function is stopped in order to adjust the camera. In this mode, the white balance is set to the indoor mode and focussing is performed manually.

1) How to enter the camera signal system adjustment mode Set the data value at address "0000" to " 00".

]

The camera signal system adjustment mode will be established. *When the camera signal system adjustment mode is established, make adjustment according to "(5) Camera adjusting

procedure".

2) How to enter the normal mode Set the data value at address "0000" to " FF".

]

The normal mode will be established.

]

Pressing "CONTINUE" key will make the display "CAM ADJ" disappear and make it possible to perform normal operation.

(5) Camera adjusting procedure

* "1. Adjustment of auto focus" is performed in the auto focus adjustment mode. The other adjustments are performed in the camera

signal system adjustment mode.

(6) How to replace the gyro unit

1) When replacing the E

PROM on the main unit with the gyro unit kept unchanged Because the gyro adjustment data is stored in the E2PROM, read the data at address "1064" and write it into the new E2PROM after replacement.

2) When replacing the gyro sensor (RMC1001) After replacing the gyro sensor with the specified one, write the following data at address "1064".

Ref No. Part code Address Data

RMC1001 Changed to RSNSGA005WJPZY 1064 01D0

Page 44

VL-Z7U/Z75U/Z8U

10-2-4. Adjusting procedure

Item

(1) Adjustment of auto focus

The following adjustments are performed automatically by establishing the auto focus adjustment mode and writing the following data at address "13FD" sequentially. The adjustment items are as shown in the table below. When an adjustment is completed normally, data "FF" is written, which should be confirmed before proceeding to the next adjustment.

Address Data Adjustment item

0001 0012 Adjustment of wide end

0008 Adjustment of tele end focus ∞ position 0006 Adjustment of wide end focus ∞ position

000D Adjustment of zoom tracking

Note 1: During the adjustment of ∞ position, a subject should be shot actually. Make this adjustment while shooting a subject with

a clear-cut outline. In the case of the adjustment of tele end focus ∞ position in particular, if it is performed without shooting a distant subject actually, the ∞ position will not be adjusted properly.

Adjustment of wide end focus ∞ position: 3 m or more Adjustment of tele end focus ∞ position: 50 m or more

Note 2: In the case of the adjustment of ∞ position, the depth of field is important in insuring accuracy. If the depth of field is deep,

the ∞ position may be adjusted improperly the subject hardly falls out of focus. Make this adjustment with the depth of

field being shallow (the iris opened).

It is possible to open the iris using the high-speed shutter.

1. Establish the normal mode.

2. Call the V-V adjust sports mode in normal operation. (Refer to the instruction manual.)

3. Display "CAM ADJ" by using the remote control for servicing.

4. Establish the auto focus adjustment mode.

5. Perform the adjustment of ∞ position.

6. After the completion of the adjustment of ∞ position, set the V-V adjust back to the off position.

Adjustment method

(2) Basic adjustment of iris

It is performed to adjust the operating point of the hall element installed in the iris meter. The following adjustments are performed automatically by writing the following data at address "13FD" sequentially in the camera signal system adjustment mode. The adjustment items are as shown in the table below. When an adjustment is completed normally, data "00FF" is written automatically.

Address Data Adjustment item

0001 0009 Adjustment of hall offset

000A Adjustment of iris offset 000B Adjustment of iris close

After exiting the auto focus adjustment mode (writing data " FF" at address "13FE"), establish the camera signal system adjustment mode (writing data " 00" at address "0000").

(3) Adjustment of black balance/Adjustment of A/F noise

This adjustment is performed automatically by writing data " 01" at address "0001". When the adjustment is completed normally, data "00FF" is written automatically.

Page 45

VL-Z7U/Z75U/Z8U

Item

(4) Rough adjustment of iris AE

• Measurement terminal: S terminal luminance signal output

(75 Ω termination)

• Address: "0002" AE_CVT

• Measuring instrument:

Oscilloscope (horizontal cycle)

• Object: Grey scale

• Data changing range: "0000" to "00FE"

(5) Rough adjustment of white balance

• Measurement terminal: EE output

• Address: "0128" CGAIN_KR_W "012A" CGAIN_KB_W

• Measuring instrument: Vector scope

• Object: Grey scale

• Data changing range: "0000" to "03FF"

Adjustment method

1) While shooting the gray scale normally, observe the video output using the oscilloscope. By rewriting the data at address "0002", adjust the white luminance signal level to

680±10mVp-p and the gray luminance signal level (on the gray scale background) to 330±10mVp-p.

100mV/div

1) While shooting the gray scale normally, observe the monitoring screen of the vector scope. By rewriting the data at addresses "0128" and "012A", position the luminescent spot so that the following burst ratio is obtained.

R-Y 0 ± 5% B-Y 0 ± 5%

(6) Rough adjustment of color gain

• Measurement terminal: EE output

• Address: "013A" CGIN RYG "013C" CGIN BYG "0138" CMAT RYG "0136" CMAT BYG "07DE" Yellow amplitude "07DD" Yellow phase

• Measuring instrument: Vector scope

• Object: Color bar chart

• Data changing range: "0000" to "00FF"

1) Shoot the color bar chart and adjust the field angle so that the white level becomes 600mV. While observing the monitoring screen of the vector scope, rewrite the data at addresses "013A", "013C", "0138", "0136", "07DE" and "07DD" so that the red, blue and yellow luminescent spots are positioned as shown below. (As for the burst gain, gain setting of the vector scope should be made at the 75% Amplitude point on the BY axis.)

Adjustment address

Red amplitude 1.75 ± 0.1 time (burst ratio) : "013A" Blue amplitude 1.35 ± 0.1 time (burst ratio) : "013C" Yellow amplitude 1.25 ± 0.1 time (burst ratio) : "07DE" Red phase 106° ± 2° : "0138" Blue phase 358° ± 2° : "0136" Yellow phase 168° ± 2° : "07DD"

Page 46

VL-Z7U/Z75U/Z8U

Item

(7) Adjustment of white balance

• Measurement terminal: EE output

• Address: "0128" INDOOR_W/B R "012A" INDOOR_W/B R

• Measuring instrument: Vector scope

• Object: Grey scale

• Data changing range: "0000" to "03FF"

(8) Adjustment of indoor white gain

• Measurement terminal:–

• Address: 0001

• Measuring instrument:–

• Object: White pattern

• Data changing range:–

(9) Adjustment of color gain

• Measurement terminal: EE output

• Address: "013A" CGIN RYG "013C" CGIN BYG "0138" CMAT RYG "0136" CMAT BYG "07DE" Yellow amplitude "07DD" Yellow phase

• Measuring instrument: Vector scope

• Object: Waveform monitor color bar chart

• Data changing range: "0000" to "00FF"

Adjustment method

1) Perform the adjustment of white balance repeatedly.

1) This adjustment is performed automatically by writing data "05" at address "001" in the signal system adjustment mode. When the adjustment is completed normally, data "FF" is returned to address "001". If data other than "FF" is returned, the adjustment has not been performed properly.

1) Perform the color gain adjustment repeatedly.

Adjustment address

Red amplitude 1.75 ± 0.05 time (burst ratio) : "013A" Blue amplitude 1.35 ± 0.05 time (burst ratio) : "013C" Yellow amplitude 1.25 ± 0.05 time (burst ratio) : "07DE" Red phase 106° ± 1° : "0138" Blue phase 358° ± 2° : "0136" Yellow phase 168° ± 2° : "07DD"

(10) Adjustment of auto white balance adjustment

• Measurement terminal: EE output

• Address: "000C" OUTDOOR R "000E" OURDOOR B

• Measuring instrument: Vector scope

• Object: Grey scale

• Data changing range: "0000" to "03FF"

(11) Adjustment of outdoor white gain

• Measurement terminal:–

• Address: 0001

• Measuring instrument:–

• Object: White pattern

• Data changing range:–

1) Set the color temperature conversion filter (LB165) on the lens.

2) While shooting the gray scale normally, observe the monitoring screen of the vector scope. By rewriting the data, position the luminescent spot so that the following burst ratio is obtained.

R-Y 0 ± 5% (burst ratio) B-Y 0 ± 5% (burst ratio)

1) Set the color temperature conversion filter (LB165) on the lens.

2) This adjustment is performed automatically by writing data "06" at address "001" in the signal system adjustment mode. When the adjustment is completed normally, data "FF" is returned to address "001". If data other than "FF" is returned, the adjustment has not been performed properly.

Page 47

VL-Z7U/Z75U/Z8U

Item

(12) Adjustment of iris AE

• Measurement terminal: S terminal luminance signal output

(75 Ω termination)

• Address: "0002" AE_CVT

• Measuring instrument:

Oscilloscope (horizontal cycle)

• Object: Grey scale

• Data changing range: "0000" to "00FE"

Adjustment method

1) Establish the normal mode (by writing data " FF" at address "0000".

2) While shooting the gray scale normally, observe the video output using the

oscilloscope. Check that the white luminance signal level is 640±10mVp-p and that the gray luminance signal level (on the gray scale background) to 290±10mVp-p.

100mV/div

Page 48

VL-Z7U/Z75U/Z8U

Lines appear on

the color bar.

Noise bar (Green) + random block noise when tape recorded on this unit or another unit is played back.

11. USEFUL TIPS (PROBLEMS DIFFER FROM THOSE FOUND ON VHS OR 8MM DECKS BECAUSE THE SIGNALS ARE DIGITALLY PROCESSED.)

Camera (EE mode)

Picture fails to appear

Major circuits to be checked

• CCD

• Camera circuits (CDS/ADC,

CAM ENGINE)

• MECHA/SYSTEM MiCON (IC701)

• VIDEO I/O (IC1401)

• VIO ENGINE (IC4401)

Camera (REC mode) VCR (PB mode)

Blueback when tape recorded on this unit or another unit is played back. (EE OK)

VCR (EE mode)

Blueback fails to appear.

Major circuits to be checked

• MECHA/SYSTEM MiCON (IC701)

• CAM ENGINE (IC201)

• REC/PB ENGINE (IC452)

Camera (REC mode) VCR (PB mode)

Random block noise when tape recorded on this unit or another unit is played back.

Camera (REC mode) VCR (PB mode)

Picture fails to appear when tape recorded on this unit or another unit is played back. (EE OK)

Major circuits to be checked

• CAM ENGINE (IC201)

• REC/PB ENGINE (IC452)

Major circuits to be checked

• EQ/PLL (IC3401)

• Head amplifier (IC301)

* Dirty or defective video head

VCR (PB mode) + color bar

Major circuits to be checked

• CAM ENGINE (IC201)

Major circuits to be checked

• EQ/PLL (IC3401)

• Head amplifier (IC301)

* Dirty or defective video head

VCR (PB mode) + color bar

There is considerable randam block noise.

Major circuits to be checked

• Adjustment of the electromagnetic conversion circuit system.

Camera (EE mode)

The outline looks like a Moire pattern.

Major circuits to be checked

• Y data between CAM ENGINE (IC201) and VIO ENGINE (IC4401) is missing.

Page 49

12. SIGNAL FLOW DIAGRAMS

VL-Z7U/Z75U/Z8U

12-1. EE MODE FLOW (VIDEO)

CAM ADIN

209

200

CAM ENGINE

VIO ENGINE

VIDEO I/O

SEP-Y IN/OUT

ZYP

291C293

16 13 10

VIDEO IN/OUT

IC201

2 6

SEP-C IN/OUT

IC4401

IC1401

ZCP

RYG

LCD Panel

103

IC801

WAVEFORM DIAGRAM (DURING COLOR BAR RECORDING)

IC4401 291pin Y Output

CH1=500mV DC P*10

IC4401 23pin ZYP3 Input

CH1=1V DC P*10

IC4401 33pin ZCP3 Input

CH1=1V DC P*10

5ms/d

IC4401 222pin CDY3 Output

CH1=1V DC P*10

IC4401 236pin CDC3 Output

CH1=1V DC P*10

5ms/d

20µs/d

5ms/d

12-2. FLOW IN REC MODE (VIDEO)

ZYP

224

219

CDY

244

REC GATE

231 232

VIO ENGINE

REC/PB ENGINE

FPC

ZCP

240

233

CDC

REC DATA

IC4401

IC452 243

HEAD AMP

SC3301

IC4401 293pin C Output

CH1=500mV DC P*10

WAVEFORM DIAGRAM (DURING COLOR BAR RECORDING)

IC452 244pin Rec GATE Output

CH1=1V DC P*10

IC452 243pin Rec DATA Output

CH1=1V DC P*10

5ms/d

20µs/d

Page 50

VL-Z7U/Z75U/Z8U

IC1602 Output

CH1=1V DC P*10

10µs/d

12-3. FLOW IN PB MODE (VIDEO)

HEAD AMP

PB_DATA

P3301

PB_DATA

227

IC3403

295

IC3401

IC452

IC201

229 236 50 57

297 304

IC3404

ADIN

CDC

ZCP

REC/PB ENGINE

CAM ENGINE

EQ/PLL

PB-CLK

40 47

CDY

282 288

ZYP

WAVEFORM DIAGRAM (DURING COLOR BAR PLAYBACK)

IC3401 39pin PBDATA Input

CH1=500mV DC P*10

IC3401 44pin Input

CH1=1V DC P*10

5ms/d

A/D

IC3401 1pin Output

CH1=500mV DC P*10

5ms/d

IC3401 32pin Input

CH1=500mV DC P*10

5ms/d

IC4401 to VIO ENGINE same as in EE system

12-4. FLOW IN REC MODE (AUDIO)

TELE-MiC

35 36 48

MIC-L

AUD-L ADIN

REC GATE

27 30 32

MIC AMP

AIO

16Bit ADC/DAC

REC/PB ENGINE

INT-MIC-R INT-MIC-L

IC3601

MIC-R

IC600

AUD-R ADIN

IC1602

IC452

243 244

REC DATA

AIDAT

HP-L HP-COMMON HP-R

WAVEFORM DIAGRAM (1.6 kHz SINE WAVE)

same as in REC system

Page 51

VL-Z7U/Z75U/Z8U

1602

AT Input

CH1=1V DC P*10

10µs/d

12-5. FLOW IN PB MODE (AUDIO) WAVEFORM DIAGRAM (1.6 kHz SINE WAVE)

From IC3404 same as in Video PB system

REC/PB ENGINE

16Bit ADC/DAC

AUD-R_DA_OUT

AIO

AUDIO-R_IN/OUT

IC452

DODAT

IC1602

IC600

AUDIO-L_IN/OUT

1516

SP(+)

AUD-L_DA_OUT

HP-L

HP-COMMON

3843

HP-R

SP(-)

Page 52

VL-Z7U/Z75U/Z8U

Mecha

Dram Motor

CAP Motor

LOA Motor

LENS

IC1

1330K

CCD-Sensor

IC101

CDS/AGC

ADC

IC21

X21 72M

IC551

LENS DRIVER

IC2502

IRIS

DRIVER

IC501

LENS MiCON

IC3701

CAMERA/CARD MiCON

SD/MMC CARD

IC3702

16Mbit SDRAM

USB

IC503

D/A-CON

IC203

64Mbit

SDRAM

CAM

DSP

ZOOM

IC201

CAMERA

ENGINE

(Total ASIC)

M-CTL

CameraZoom

IC1401

ANALOG

VIDEO I/O

IC701

MECHA/SYSTEM

MiCON

I/O

IC4401

VIO

ENGINE

(Total ASIC)

I/O

LCD

OSD

curcit

IC407

Codec External

Memory

16M SDRAM

IC408

ECC External

Memory

16M SDRAM

CODEC

TRANSPORT

PCM

CLK.

Gen

IEEE1394

IC3404

A/D

IC3401

EQ/PLL

IC301

2CH

ATF/H/A

(4.9V)

IC1602

16Bit

ADC/DAC

IC600

AIO

IC3601

MIC AMP

INT. MIC

IC1701

MOTOR DRIVER

D-Driver

C-Driver

L-Driver

LCD

INTERFACE

IC801

IC8800

VF INTERFACE

IC452

REC/PB

ENGINE

(Total ASIC)

in/out

HEAD

INT.

Speaker

Audio

out

Head Phone

out

CCD Section

VCR/LCD Section

IC703

CHARACTER

GENERATOR

Video

out

REC (EE)

TELE MIC

I/O

LCD

CTL

IC22

V-Driver

SUB Section

LCD

13. BLOCK DIAGRAMS

13-1. SYSTEM BLOCK DIAGRAM

Page 53

IC1

CCD-Sensor

VHLMN39192N-1

IC101

CDS-AGC/ADC

VHiH49334HN-1

36P

IC21

VHiMN52A6CD-1

48P

IC22

V-Driver

VHiUPD16510-1

20P

X21

72.000MHz

RCRSZ0083TAZZ

IC201

CAM ENGINE

RH-iX0785TAZZ

368P

IC203

64M SDRAM

RH-iXA320WJZZ

90P

CCD OUT

FS_CLK, FCD_CLK,

BCPX, PBLK, ADCLK

XSDADR0 12

XSDCLK

XSDCKE

XSDCSX

XSDRASX

XSDCASX

XSDWEX

XSDDQM0 3

XSDDAT0 31

ZYP0 7

ZCP0 7

ZCLKP

ZHDP

ZVDP

ZUVSELP

TGHD, TGVD

CAMAD0

CAMAD9

TGCLK

TGVD

TGHD

H1-CLK,

H2-CLK,

RS-CLK,

HL-CLK

TGCLK

SC1001-SC1202

24 : ADIN0 : 10

26 : ADIN1 : 8

28 : ADIN2 : 6

30 : ADIN3 : 4

32 : ADIN4 : 2

23 : ADIN5 : 11

25 : ADIN6 : 9

27 : ADIN7 : 7

29 : ADIN8 : 5

31 : ADIN9 : 3

12 : TGVD : 20

13 : TGHD : 21

9 : TGCLK : 25

CDY0 7

CDC0 7

CLK13P

CDHDP

CDVDP

CCD

MAIN

OFD

V1, V2, V3, V4

V1M, V2M,

V3M, V4M,

CH1M, CH2M,

VSUBM

CAMAD0

CAMAD9

13-2. CAMERA SECTION BLOCK DIAGRAM

VL-Z7U/Z75U/Z8U

Page 54

VL-Z7U/Z75U/Z8U

REC (EE)

REC (EE), PB

IC4401

VIO ENGINE

RH-iXA204WJZZ

303P

IC1401

VIDEO I/O

VHiLA73070V-1

16P

SC8800

SC1801 SC1800

IC452

REC/PB ENGINE

RH-iX0809TAZZ

368P

IC8800

VF INTERFACE

VHiMM1323XV-1

24P

SC1201

P2901

J1401

CDY0 7, CDC0 7

CDVDP

CDHDP

CDUVSELP

ZUVSELP

ZCLKP

ZHDP

ZVDP

CAMERA SECTION

BLOCK DIAGRAM

CAM ENGINE

ZYP0 7

ZCP0 7

VIDEO IN/OUT

SEP Y IN/OUT

SEP C IN/OUT

I/O SEL

STH, XSTH, CKH1,

CKH2, DSG, ENB,

STV, CKV1, CKV2

VR, VG, VB

CVDR, CHDR

A-Y-OUT

A-C-OUT

A-C_IN

A-Y/COMP_V_IN

IC1431

VHiNJM2535V-1

VIDEO-IN

SEP-Y-IN

Main PWBSub PWB

80P

Bord to Boed

VIDEO IN/OUT

SEP Y IN/OUT

SEP C IN/OUT

SCK, GCK, GSP, INI,

SSP, SH1, SH2, SH3,

SHOUT, HD, GCK_CTL,

FRPV

13-3. VIO ENGINE SECTION BLOCK DIAGRAM

Page 55

REC (EE)

REC (EE), PB

IC452

REC/PB ENGINE

RH-iX0809TAZZ

368P

IC4401

VIO ENGINE

RH-iXA204WJZZ

303P

IC407

Codec External Memory

16M SDRAM

RH-iXA193WJZZ

60P

IC3404

A/D CONV IC

VHiADC8351C-1

20P

IC301

HEAD AMP, ATF

48P

IC3401

EQ/PLL IC

48P

X401

24.576MHz

RCRSC0160TAZZ

IC408

ECC External Memory

16M SDRAM

RH-iXA193WJZZ

60P

MADDR0 11

XCS, XWE, XRAS, XCAS,

XUDQM, XLDQM, XCKE,

CLK18M1IV

SM-ADR0 11

I/OSEL

CVDR

CHDR

DI00 15

MDT0 15

CS, WE

UDQM, RAS

LDQM, CAS

CKE, CK18M1IV

PB-CLK

ADIN0 7

I D

REC DATA

REC GATE

CDY0 7

CDC0 7

CDUVSELP

CDHDP, CDVDP

13-4. REC/PB SECTION BLOCK DIAGRAM

VL-Z7U/Z75U/Z8U

Page 56

VL-Z7U/Z75U/Z8U

REC (EE)

REC (EE), PB

MECHA/SYSTEM MICON

IC1602

16Bit ADC/DAC

VHiPCM3008+-1

16P

IC600

AIO

VHiLA74206W-1

64P IC3601

MIC AMP

VHiAN2901FQ-1

48P

JACK

HEAD PHONE

JACK

SPEAKER

80P

Bord to Bord

DV CONNECT

J7401

REC/PB ENGINE

BLOCK

SP OUT

DFSO

DFSI

AIDAT

AUD R DA OUT

AUD L DA OUT

AUDIO R I/O

AUDIO L I/O

ADMCLK

ADBCK

ADLRCK

PDAD

PDDA

DODAT

CS-1394,

RD-1394,

WR-1394

AUD R AD IN

AUD L AD IN

XTPA0, TPA0,

XTPB0, TPB0

80P

Bord to Bord

INT MIC

TELE MIC

13-5. AUDIO/DIGITAL OUTPUT SECTION BLOCK DIAGRAM

Page 57

MAIN

SUB

CCD

IC21

Timing

Generator

Electric Zoom

Image Stabilizer

Digital Noise Reduction

IC101

CDS

AGC

ADC

IC1

CCD

Sensor

IC551

IC201

IC203

X21

72MHz

RMC1001

Gyro Sensor

IC1002

Gyro Amp

Focus-Motor

Driver

IC2502

Iris Amp

Iris Drive

Zoom-Motor

Driver

REC /PB

Y/C Data

PB Y/C Data

Sirial Data

IC503

D/A

Converter

IC3702

16M SDRAM

Y-Process

SSG

Digital Auto

C-Process

64M

SDRAM

IC3701

CAM/CARD µ-com

CAM ENG

IC22

V-Driver

IC501

Lens µ-com

13-6. CAMERA CIRCUIT BLOCK DIAGRAM

VL-Z7U/Z75U/Z8U

Page 58

VL-Z7U/Z75U/Z8U

14. SCHEMATIC DIAGRAMS 14-1. OVERALL SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

5958

Page 59

VL-Z7U/Z75U/Z8U

14-2. CAMERA ENGINE SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

6160

Page 60

VL-Z7U/Z75U/Z8U

14-3. REC/PB ENGINE SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

6362

Page 61

VL-Z7U/Z75U/Z8U

14-4. MEC/SYS MiCON SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

6564

Page 62

VL-Z7U/Z75U/Z8U

14-5. POWER1 SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

6766

Page 63

VL-Z7U/Z75U/Z8U

14-6. CAMERA CONN SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

6968

Page 64

VL-Z7U/Z75U/Z8U

14-7. VIDEO I/O SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

7170

Page 65

VL-Z7U/Z75U/Z8U

14-8. LCDIF SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

7372

Page 66

VL-Z7U/Z75U/Z8U

14-9. CONNECTION(B-B) SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

7574

Page 67

VL-Z7U/Z75U/Z8U

14-10. EQ/PLL SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

7776

Page 68

VL-Z7U/Z75U/Z8U

14-11. CAM/CARD MiCON SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

7978

Page 69

VL-Z7U/Z75U/Z8U

14-12. VIDEO I/O ENGINE SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

8180

Page 70

VL-Z7U/Z75U/Z8U

14-13. DAC SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

8382

Page 71

VL-Z7U/Z75U/Z8U

14-14. VFIF SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

8584

Page 72

VL-Z7U/Z75U/Z8U

14-15. CCD SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

8786

Page 73

VL-Z7U/Z75U/Z8U

14-16. TG SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

8988

Page 74

VL-Z7U/Z75U/Z8U

14-17. CDS SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

9190

Page 75

VL-Z7U/Z75U/Z8U

14-18. LCONN SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

9392

Page 76

VL-Z7U/Z75U/Z8U

14-19. LENS MiCON SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

9594

Page 77

VL-Z7U/Z75U/Z8U

14-20. LENS SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

9796

Page 78

VL-Z7U/Z75U/Z8U

14-21. AUDIO I/O SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

9998

Page 79

VL-Z7U/Z75U/Z8U

14-22. POWER2 SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

0.75A 24V

å AND SHADED COMPONENTS=SAFETY RELATED PARTS

1.25A 24V

1234567891011 12 13 14 15 16 17 18 19 20

101100

Page 80

VL-Z7U/Z75U/Z8U

14-23. MiC AMP SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

103102

Page 81

VL-Z7U/Z75U/Z8U

14-24. LCD SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

105104

Page 82

VL-Z7U/Z75U/Z8U

14-25. INVERTER SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

å AND SHADED COMPONENTS=SAFETY RELATED PARTS

1234567891011 12 13 14 15 16 17 18 19 20

107106

Page 83

VL-Z7U/Z75U/Z8U

14-26. HEAD AMP SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

109108

Page 84

VL-Z7U/Z75U/Z8U

14-27. MOTOR DRIVE SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

111110

Page 85

VL-Z7U/Z75U/Z8U

14-28. LITHIUM SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

113112

Page 86

VL-Z7U/Z75U/Z8U

14-29. OPERATION SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

115114

Page 87

VL-Z7U/Z75U/Z8U

14-30. VCR OPERATION SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

117116

Page 88

VL-Z7U/Z75U/Z8U

14-31. ZOOM SW SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

1234567891011 12 13 14 15 16 17 18 19 20

119118

Page 89

VL-Z7U/Z75U/Z8U

14-32. MECHA REVERSION DETECTION SCHEMATIC DIAGRAM

12345678910

120

Page 90

14-33. HOLE SENSOR UNIT SCHEMATIC DIAGRAM

VL-Z7U/Z75U/Z8U

12345678910

121

Page 91

VL-Z7U/Z75U/Z8U

15. SEMICONDUCTOR LEAD IDENTIFICATION

2SC4738Y FMMT619 2SC5376B 12A01M KRC401E KRC402E KRC404E

2SC4944Y TA75S01F NJM2107F XP1111

KTA2014EY KTC4075EY RT1N144U 15C01M 15C01SS 2SC5536 12A01SS

NC7SZ04P XP1213 NJU7008F XP1501 XP4213

3LN01S

CPH5504

XP05534 7SB3157P MCH6617 MCH6305 XP043IN FDG312P

EMD12 XP4501 XP6401 XP4313 XP4601 XP6501

XN04391

FDC642P XP4316

FMG12

DAN217U

FDT458P

MA4S159

(E)

(B)

NDS332P

KDS121E

NDS355AN

(A)

(C)

XN09D61

122

Page 92

HVU17TRF EX1394CE HVC359TR RB160M30 A089WJ

64 50 44 38 30 28 24 20 16 14 10

HVC362 HVC375B HVC202A 1SS400

32 25 22 19 15 14 12 10

VL-Z7U/Z75U/Z8U

138 120 108

90 75 60 54 48 42 36 27

28 37 43 49 55 61 76

91 109 121 139

8 7 5

36 48 56 64 72

80 100 120 144 160 184

47 41 37 31 26 21 19 17 15 13 10

9 12 14 16 18 20 25 30 36 40 46

UPD16835 NJM2902V LV4051AT MB8346BV MB88146A UPD16510 MM1323XV ADC08351

IX0785TA IX0809TA IXA525WJ IXA502WJ

CXA2096N PCM3008 IXA532WJ LA73070V R2101S01 NJ12902V

IXA504WJ IXA204WJ LB11990F IR3Y54U

NJM2143R TLC2940 BR24L64F

BH7277KV MB3881++ CXD2489R MN52A6CD

LB11990F LA74206W AN2901FQ

LA70050W H49334HN IXA526WJ

NJU7015R NJM2535V NC7NZ04K NC7WZ08K BR24L02M

IXA193WJ IXA320WJ ADC8351C

123

Page 93

VL-Z7U/Z75U/Z8U

16. PRINTED WIRING BOARD ASSEMBLIES MAIN PWB

VL-Z7U/Z75U/Z8U

SIDE A

TL3302TL3304

SC3301

SC3302

L917

L916

L918

C982

TL902

C974

C978

D960

Q8800

IC8800

C7807

TL4438

C4435

C3436

R4403

C975

C956

C6803

C7810

R7800

C4428

R4415

C4418

R4495

C4426

R4414

R4454

R4456

C4451

C4424

C4423

C4465

C973

C962

R8804

C8801

C4403

L7810

R7811

R7812

C4417

TL4440

R4451

C4462

R4462

R4460

C4463

L911

C990

D916

C929

R8805

C4454 R7820R7832

X4451

R4461

TL8801

C8806

Q8801

C8807

C8809

C7829

R7819R7833

R7838 C7812

D4452

L4451

D4451

FB4461

R4466

IC4461

R8819

R7810

D7810

R7834

C7828

R7839

Q907

Q910

Q905

R8807

R8820

C7822

R7825

R7824

R7840

C7830

R7836

C7827

R7837 C8808

R4453

R4463

R988 C971

L931

R8806

R8809

C8813

C8814

Q7800

FL3702

C4461

C8822

Q904

C954

R983

C8802

TL907

R8814

R8827

R3701

R3713

R3711

TL1801

Q4461

R8840

Q906

C972

TL8802

C3704

R3706R3707

R8839

C8803

R8828

R3705

TH1800

R8841 Q8802

R987 C970

TL911

C3710

C1811

R1826

Q8804

R990

L907

R8808R8817

C3714

Q908

Q909 C953

IC3702

R3717

C3713

TL3703

C980

L915

C955

C960

R982

L908

C939

FB3701

C3705

R3712

C3707

R3708

R3738

R8842

C938

C1901

C3712

IC3701

R3709

Q3701

C981

R1992

Q903

Q1901

C3708

C3709

R3710

TL901

Q1990

TL910

Q1991

L901

R3718R3739

R1990

C1990

Q900

TL908

TL8806

L900

C934

C3702 L3702

R1991

C931

Q1905

R1941

C932 R970

C1904

TL8804

R8836

R8834

C3703

R3737

C3711

C3706

TL3701

R3740

C930

FB8800

TL8805

R8835

C3701 L3701 L903 C933 L902 C936

TL3702

TL3310

R751 R753 C726

C1805

R1814

R1414

R1423

R6802

R6803

R1439

R1438

C4483 R1809

C728

R750

R755

R720

R1817

C1806

R1820

R1816

C1412

R6817

R6805

Q6801

C6802

C6801

R6807

C4481

R4489

R4472

R754

C737

R1813

C1800

Q1404

TL6804

TL6803

R6806

C6804

R6809

R4471

IC706

Q1802

R1827

R6816

R6808

D6800

C4406

Q4481

C4482

R749

C722

R711

R782

R730

R708

R710

R706

TL8803

R1812

C1815

C4401 L1800

IC6801

TL6807

TL6809

TL7819

C6811

C6812

TL6801

TL6802

R6811

L6800

C6805

C4416

R4485

C4485

R4486

R713

R734 R731 C729 R719

R4402

R4401

C4419R4494C6806 C6810

R4488

R768

R716

R721

C732

C727

C715

R1815

Q1803

C4402

R6819C6815

Q4482

C724 R1932

C707

Q701 Q702

C705

C6813

R4487

X702

C1804

R1803

R1807

R1819

Q1405

C730

R741

R735

R1808C1803

R1461

C1419

R1421

R1404

R6813

R6810

R6800R1403C1417

C1436

L4404

C4404

R1811

R1810

C1411

Q1403

R1462

Q1434

L4406

C725 R752 C723

R757

C733

R725

Q1801

R1424

C6800

R6804

C6807

R6812

Q4483

R756 R760 R764

R761 R765 R766

R745 R722 R762

R717 R728 C713

C703

P3301

SC1800

R702

R1824

C1438R1442

C711

R743

R714

TL701

TL3303

R744

C731

R709

R742

R712 C716

R723

R705

R724

R732

C1809

R1823

C1810

C1439

R707 R715 C735

C708

R747

C1402

Q1431 L1802

Q705

C704

Q1402

C1441 L1404

TL1431

C709

Q704

R1406

C1408

IC1431

C720

R736

R738

R718

R771

R772

L1431

R1437

R1435

R1801

C1802

R1422

R1402

C1416

C1435

R1434

R748

R729

R737

C1407

C1410

R1436 C1801

Q1433

R1802

R1800

R1419

C1406

R1405

IC1401

R1433

R746

R759

R763

R1805

R1818

C1418

C1409

C1431

C1434R1432

Q1800

R1804

R1413

C1437

R1440

R1441

C1432

R1431

Q1432

C1433

C719

IC701

C710

R758

R1806

C1440

R779

R704

C4405

C3321

Q703

R726

R6820R6818

R703

C6814

C6816 FB4405

C4420

C4409

C4407

C712

R727

R3321

C3320

X701

C7802

C7800

L7800

R4404

IC704

C4408 IC703

C714

C7806

Q3320

L701

C4421

R3320

R701

C7804

TL7824

R7828R7831

IC4401

C4410

C706

R7830

TL913

R739

C734

R780 C702

C701

R7827

R7826

R4436

R4437

C4413

R4435

D701 C3716

C8805 L8801

C7825

R7829

R932

L3405

L3404

C1911

R1928

R1925

C8800

IC7802

C991

R1927

L8800

C7805R8802 R8801

C7803 Q1913

Q4432

L923

TL903

R1926

C7808

Q911

Q1912

TL904

C8804

C7809

C4422C4414

C3473

R1924

C7801

TL4439

C4436C4415

C992

R951

R8800

C4427

1234567891011 12 13 14 15 16 17 18 19 20

125124

Page 94

VL-Z7U/Z75U/Z8U

SIDE B

C8819

SC1201

C8816

R8832

SC8800

L8802

C8817

C8821

R8838

R235 R209 C223

R958 C920

R966 R928 C907

R927 R919

C1201 C721 R767 R733 R926

C231

C3715

C222 C239 C224

TL1203

R959 R957

C921 C922

R920 R918

C928

R3702

R952 R954 C966 R960

R1993

C906 C905

R924

R953 C919

R962 C927

R929

C226

IC705

C204

C923 R965 R946

C926

R917

C228

R948 R947 C917

C925

R915

R949 C918 R925

IC900

R911

R912

D900

IC203

C205

SC1202

R914

IC201

TL3305

TL3306 R942 C916

R909

C904

R910

C993

TL1805

C237

TL1202

R941 R943

R907

C903 R902 C902

R903

FB201

C238

C240

R1935

P3303

TL3307

C924 R968

TL909

C1918

C230

TL3308

C915

C913

C912

R905 R930 R933 C909 C910

Q1920

R1940

R1938

R1939

Q1918

TL234

C209

R1934

TL3309

R940

C914

C911

R904 R931 R937 R938 R934

C1917

Q1915

TL906

TL905

C1908

R906 C908 R936 R939 R935

R1937

C1915

FB901

FB204

FB203

TL1204

L909

TL1201

C1912

R1913

R1936

C203 C1605

Q1914

R1943

L912

IC902

R1903

C948

C202

R201 C201 C212 C211 C215

C951

C1916

R1920

C1910

R1915

R1912

R1908

TL914

FB900

Q902

Q901

C213 L204

TL4437

L904

R1922

Q1911

C952

L910

R1921

R1911R1914

Q1908

C957

R1904 R1905

C946

L905

R972 R973

R975

P8800

R1923

C1905

C941

TL912

L7400

Q7401

C983

Q1909

Q1916

R1942R1929

C1914

R1907

R1901C1902

R974 C943

IC901

R401

L403

R7402R7403

L919

Q1910

R1916

TL915

C1903

R1906

R1909

C1610

R979

C942

C7414 R7413

C417

C7413

Q7402

Q7403

FB7401

R7401

R8810R8825

R1919

R1918

R1930R1917

C1913

Q1904

Q1902

C949

C401 Q1906

C415

C7400

R8815

Q8803

R8818 R1931

C1909

R1910 C1611

R980 R977 C945

R410 R409

R8816

TL3410

C1906

C1907

L1601

C435

C7417

R7419 R7416 C7405C7404

R7424

C7401

R3495

IC3402

R3488 TH3401

C3432

R1902

C1617

D403

R467

TL407

R7417 R7415 R7422R7423

C413 R463

C425

R8826

R477

D472

IC3405 C3462

Q1903

IC1602

R436

FL403

R7418 R7420 C412 C424

R3466

R3493

IC3406

R3499

C1608

D404

R438

C473

L471

C3429

R3435 C3474

R3481 R3428 R3432 R3486 R3425

R3445R3427R3487 R3480C3404

R3402

R437

C472

R3471

R3492

C3428

R3440

R3433

C1603

R428

SC1204

R3457

C3475 R3462 R3436 C3430 C3471 R3482 C3444 R3422 R3424 R3429 C3434

R3437

C3479

C3407

R3431

R3439

C1604

C447 R440

C420

C474

D471

R1201

R3452

R3463

TL3406

C3431

R468

R429 R442

R478

R3469

R3451

C3433

R3403

IC3407

R441

C450

C477

C478

R418

C419

C3452

IC3403

R3434

R3405 R3408 R3426

C451

C423

IC452

R3421

IC405

C452

R462

C418

R3468

TL3403

TL3401

R3423 C3481

C3426

IC4701

R443

C411

R413

R404

X401

R3465

IC3401

R3419C3477C3424

R3479

C404

R407

R471

C3423 R3464

R3478R3420R3473

C405

C414

C421

C3421R3412

C3467C3476R3472

R406 R411 R412

R402 R416

TL418

C3419R3411

C3470R3470

Q3404

C3451R3454

C4702C4703

R403 C407

C410

C3466

FL3402

C3417R3410

C3420C3414

C3416

R3417

R3416C3418

C3458

C402

R408

C475 C476

C3478

C3415

R3418

C3455

IC3404

C3465

C3411

R3406 R3414 R3409 R3413 C3413 R3430

C3406

C3412

FL3403

C456

C465

FB415

R432 C430 C463 C432

C3717

FL3401

C3409

R3407 C3408 R3442 C3405

R3404

R3415

C3454

TL1205

C3410

C3403

C3402

Q3401

C3443 C3442

C3457

FB456

IC407 IC408

L3401

IC3301

C3301

C3456

FDC03

P1201

R3489

Q3406

TL3301

R3401C3401

R3496

L1801

TL1804

TL1802

TL1803

TL1800

R1825

R1933

TL1806

TL1807

TL702

C460 C462

RMC701

SC1801

1234567891011 12 13 14 15 16 17 18 19 20

127126

Page 95

VL-Z7U/Z75U/Z8U

CCD PWB

SIDE A

C110

L101

TL7

TL6

C102

TL5

C109

TL4

C107

C101

IC1

C108

R103

C104 C105

TL3

C103

TL1008

TL1

TL2

C111

TL1019

IC101

C106

C113

C114

R110

C112

R106

R107

R108

R109

TL1007

TL8

TL1009

TL1010

C1002

C1111

C1016

R1018

TL1003

TL1017

TL1011

TL9

RMC1001

TL10

TL1004

TL11

C3 R7

TL12

TL13

TL14

TL1002

12345678910

128

Page 96

TL1021

TL1023

TL1025

TL1028

TL1024TL1022TL1020

TL1031

TL1026

C115

C1022

C1020

SC1001

TL1030

TL1016

C1024

C1025

C1023

C1021

TL1015

C42

TL1006

TL1005

R1019

R29

SIDE B

L102

C1019

VL-Z7U/Z75U/Z8U

TL1001

TP1001

R28

C39

R39

C116

R27

Q21

R26

C37

R38

C38

C24

R42

L23

R1015 C22

C1014 C1018

C1001

C1011

C43

C40

R1016

R1017

R1011

R1012

C32

C30

IC21

R30

C29

C27

C1003

IC1002

IC22

R1001

R1003

R1005

R41

TL1012

C44 R36 C45

C47 C33 R23

R35

R22

C48 C46 C35

C36 C41

FB22

R1007 C1007

C1005

R1013

Q1001

C21

C1010

R1009 R1014

TP1002

X21

TP1003

10 11 12 13 14 15 16 17 18 19

129

Page 97

VL-Z7U/Z75U/Z8U

SUB PWB

SIDE A

TL503

TL556

FB3601

C521

D3601

R1512R1513

R1511

Q1501

Q1502

R1509

R1508

TL571

TL568

TL567

TL563

TL561

TL559

TL557

TL553

TL551

TL501

TL506

TL508

TL510

R524

R1510

R1507

R2908

R2907 C2903

Q2902

R2909

D2905

D2906

R2913

Q2906

D2904

R2911

R2919

IC2901

R2508

C2518 R2514

R2516 R2533 R2512

R2515 C2515 C2517

IC2502

C2902

C2521C2520

R2531R2525

Q2903

C2516

C2519

R2510

R581

R2528

TL565

R2530R2523

R2511

R2526

R527

R578

R2527

C2514

C528

Q552

R582

R2520

C522

VA501

TL3603

D551

TL570

C526

C524

TL566

TL562

TL560

TL558

TL552

R3635

TL504

TL502

TL505

TL507

TL509

TL511

D3600

TL569

TL564

TL554

R3602 C3600

C525

SC551

TL555

SC501

C523

TL900

TL901

TL902

C2901

C2910

R2910

R2916

R2912 R2513 R2509

P900

TL904

TL903

D2902

Q2901

Q2905

R2918

R2906

R2903

Q2904

R2904

R2917

R2905

C1513

SC1501

TL1477

CP1

CP2

CP3

R1480 R2901

L2901

TL1471

TL1472

TL1470

TL1473

TL1476

R2914

C2905 R604

R2915

C2906

R1506C1507

R1505C1506

R1504C1505

C1510

C1509 C2904

R1503 C1504

C1508 C1502

R1502 C1503

R1501 C1501

D7401

D7402

R7426

R7428

R7427

R7429

R600

R652

C602

TL603

VA603

TL600

VA601

C601

VA602

FB600

R603

VA600

TL602

TL601

C600

12345678910

130

Page 98

SIDE B

VL-Z7U/Z75U/Z8U

C553

C554

C556

C558

C559

C561

R552

R553

R555

R559

Q2551

R2552

R2560

R2559

R3605

C3602 R3604

R3606 C3603

R3611 R3612

C507

L501

C502

C573

C574

C551

R551

C555

C557

IC551

R2558

R2556

Q2553

R2555

R2553

R2551R2554

R613

Q2552

C606

R2561

C609

C616

Q2554

C3605

Q3600

R3603

IC3600

L601

C503

Q600

R3607

C3601

R630

R625

R629

R634

R636

C3604

C620

C2551

R639

C622

R3601

C624

R3600 C621 R626

C631

R627

C626

C629

C646

R638

R643

R641

C632 C635

R655

C634

C604

C642

Q601

R605

IC503

R554

C552

R557

C560

R2557

C603

Q605

R623

R661

R615 Q3604

R620

C648

R617

C618

R606

R621

C614

C637

C640 R659 C636 C639 R656

R648 C645 R645 R647 C649

R601

C641

R602

R506

C506

R507

R505

R512

R508

FL501

R504

R3644

R3643

R525

R654

R610

C607

C3646

C3635

Q603

C611

IC600

R3639

C644

R3631

C3632

C3634

R3634

R3633

R3646

R3632

C3631

C3629

R607

L551

C612

C3624

R3626

R3622

R3629

C3623

R3624

C3630

C3628

C3622

C3626

R3627

R3623

C3625

R3630

C3627

C647

R3625

R3628

C613

R618

C615

C617

C619 R619

C628

C651

C633 R633 R3642

R635

C605

C627

C638

R509 R501 C501

IC501

TL3601

C562

R3638

C3620

C3606

R3619

R3637

R3621

C3618

C3616

TL3602

IC3601

C3619 R3615 R3617

C3621

R3620

C3610

C3608

C3609

C610

C608 R616 R614 R3610 C3641

C623

Q602

R628

R624

C625

R622

C630

R632

R526

C527

R651

Q604

R658

R657

R631

R637

L600

C3617

C650

C643

R612

R653

R572

R573

C575

C3614

C3611

R611

C509

R510

R502

R514

R513

R529

P3602

C3612

R3640

R3616

Q3603

C529

R530

R528

R3614

R3613

L3601

R531

Q501

C3640

R3645

Q3602

R3618

Q502

C3613

R3636 C3615

R3608

Q3601

R3609 R3641

L3600

C3607

L2900

TL3600

J600

P2901

R1472

R1476

R1479

R1478

J1401

R1477

J7401

R1471

R1475

R523

R2920

J2900

10 11 12 13 14 15 16 17 18 19

131

Page 99

VL-Z7U/Z75U/Z8U

LCD PWB

SIDE A

TL800

C807

TL870

D801

C9803

R824

C820

TL852

Q9800 C9801

SC801

SC800

R9801

R9800

TL832

TL830

TL826

TL824

TL822

TL820

TL869

TL801

TL805

TL806

TL808

TL810

TL814

TL815

TL817

TL834

T9800

TL831

TL829

TL825

TL823

TL821

TL819

TL807

TL809

TL851

TL818

TL842

SC803

TL828

R800

R803

R804

TL816

L9800

R9807

R817

TL837

IC800

R816

Q9802

R9808

C801

TL812

TL813

TL838

C9802

R9809

C804

C812

TL811

R9802

R9803

L800

C803

C9804

C9800

TL827

C811

R9810

Q9801

L801

C802

IC801

R802

R807

TL844

C800

TL843

C9806

C805

R808

TL846

R9804

C814

R806

IC9800

R9811

R814

R801

C9807

R9812

D9800

R815

TL845

TL802

TL853

C816

C809

C810

C815

R809

TL849

R9805

R9806

R805

C808

TL850

C813

C821

TL9800

TL9803

R813

Q800

Q801

D800

C817

C9805

TL9802

SC9800

TL9804

R811

R812

TL835

C818

R825

TL9801

TL9805

R810

R827

R826

TL848

IC803

IC804

R819

IC802

SC802

Q802

TL847

TL803

12345678910

132

Page 100

TL870

D801

R824

C820

TL852

T9800

SIDE B

SC803

TL9800

VL-Z7U/Z75U/Z8U

C9805

TL9801

TL9802

TL800

C807

C9803

Q9800 C9801

SC801

SC800

R9801

R9800

TL832

TL830

TL826

TL824

TL822

TL820

TL869

TL801

TL805

TL806

TL808

TL810

TL814

TL815

TL817

TL834

TL831

TL829

TL825

TL823

TL821

TL819

TL807

TL809

TL851

TL818

TL842

TL828

R800

R803

R804

TL816

L9800

R9807

R817

TL837

IC800

R816

R9808

Q9802

TL813

C801

TL812

TL838

C9802

R9809

C804

C812

R9802

R9803

TL811

L800

C803

C9804

C9800

TL827

C802

C811

R9810

Q9801

L801

IC801

C800

R802

R807

TL844

C9806

TL843

R808

R9804

C805

TL846

IC9800

R814

C814

R801

R806

R9811

C9807

R9812

TL845

TL802

TL853

D9800

R815

C816

C809

C810

TL849

C815

R809

R9805

R9806

R805

C808

C821

TL850

TL9803

C813

R813

C817

SC9800

Q800

Q801

C818

R825

D800

TL9804

R811

R812

TL835

R827

R826

TL9805

R810

TL848

TL847

TL803

Q802

IC803

IC804

R819

IC802

SC802

10 11 12 13 14 15 16 17 18 19

133

SHARP VLZ7U, VLZ75U, VLZ8U Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual