SHARP XA-705, XA-710, XA-720 Service Manual

XA-705

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1 XA-71 O,XA-720

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XA-705

XA-710

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XA-720

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SERVICE MANUAL

S78T6XA-705//

/vus/ PROFESSIONAL

VIDEO CASSETT

XA-705

I

MODELS XA-710, XA-720

b

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.

SERIES

E RECORDER

1

Page

1. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

I-1 FEATURES . . . . . . . ..‘....................................... 4

1-2 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

l-3 LOCATION OF MAJOR COMPONENTS

AND CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. DISASSEMBLY AND REASSEMBLY m........,.... 6

2-1 DISASSEMBLY OF MAJOR BLOCKS . . . . . . . 6

2-2 DISASSEMBLING THE MECHANISM/

MAIN PWB ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2-3 CARES WHEN REASSEMBLING . . . . . . . . . . . . . . 8

3. FUNCTION OF MAJOR MECHANICAL

PARTS . . . . . . . . . . . . . . . . . . . . . ..~......................................

4. ADJUSTMENT, REPLACEMENT AND

ASSEMBLY OF MECHANICAL UNITS . . . . . . . . . . 11

4-l MECHANISM CONFIRMATION

ADJUSTMENT JIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5. ELECTRICAL ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . 30

5-I ADJUSTMENT OF HEAD SWITCHING

POINT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*.......................

31

5-2 ADJUSTMENT OF FV (False Vertical Sync)

OF STILL PICTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3 CHECKING OF OFF TRACK . . . . . . . . . . . . . . . . 31

5-4 ADJUSTMENT OF SIF-INPUT LEVEL . . . . 32

5

9

5-5 ADJUSTMENT OF FILTER . . . . . ..e.............. 32

5-6 ADJUSTMENT OF STEREO VCO . . . . . . . . . . . 32

5-7 ADJUSTMENT OF STEREO

SEPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6. MECHANISM OPERATION FLOWCHART

AND TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . 33

7. TROUBLESHOOTING . . . . . . . . ..*........................

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

9. SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

lO.PRINTED WIRING BOARD ASSEMBLIES . . . . 80

11 .PARTS LIST

12.PACKING OF THE SET

. . . . . . . . . . . . . . . . ..*.................................

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page

31

32

39 53 62

84

103

SHARP CORPORATION

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

XA-705 XA-71 O,XA-720

IMPORTANT SERVICE NOTES

BEFORE RETURNING THE VIDEO CASSETTE RECORDER

Before returning thevideo cassette 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 cassette recorder.

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

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

l Plug the AC line cord directly into a 120 volt AC outlet

(Do not use an isolation transformer for this test).

l Using two clip leads, connect a 1.5k ohm, 10 watt

resistor paralleled by a 0.15yF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as a water pipe or conduit.

l Use an SSVM or VOM with 1000 ohm per volt, or

higher, sensitivity or measure the AC voltage drop TO EXPOSED across the resistor. (See Diagram)

l Move the resistor connection to earth exposed metal

part having a return path to the chassis (antenna,

metal cabinet, screw heads, knobs, control shafts and etc.) and measure the AC voltage drop across the resistor. Reverse the AC plug on the set and repeat AC voltaae measurements for each exposed part. Any readhg of 0.45V rms (this corresponds to 0.3mA rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the video cassette recorder to the owner.

METAL PARTS

SSVM

( 9ACSCALE 9 \

/

’ m%t?m

\

WARNING :TO REDUCETHE RISKOF FIRE OR ELEC-

TRIC SHOCK, DO NOT EXPOSE THIS AP-

PLIANCE TO RAIN OR MOISTURE.

A

RISK OF ELECTRIC SHOCK

A-==-

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK. DO

A

1 0

/\

CAUTION:

1.6A 125v

A

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.

This symbol mark means fast operating fuse.

For continued protection against risk of fire, replace

only with same type fuse F901 (1.6A, 125V).

DO NOT OPEN

0

1 0

/\

2

XA-705 XA-71 O,XA-720

PRECAUTIONS IN PART REPLACEMENT

When servicing the unit with power on, be carefwl to the section marked white all over. This is the primary power circuit which is live.

When checking the soldering side in the tape travel mode, make sure first that the tape has been loaded and then turn over the PWB with due care to the primary power circuit.

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

Start and end sensors: Q701 and Q702

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

Photocoupler: IC901

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

Cam switches A and B: D708 and D709

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

Take-up and supply sensors: D707 and D706

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

3

XA-705 XA-71 O,XA-720

1 l GENERAL INFORMATION

l-1 FEATURES

Common Features

0

8 Hours of Recording / Playback (T-160)

0

181 ch Cable Ready With Frequency Synthesizer Tuner

0

CM Skip Search

0

Automatic Playback Function

0

Blue Screen 81 On Screen Setup Programming Function

0

Full Loading System

l

Simple Recording Timer

0

Tamper Proof Function

l

Automatic Tracking System

0

3-Language OSD

0

Sharp Super Picture

0

Instant Replay

l

Universal R/C

0

EZ Set Up

l

Automatic Daylight Saving-Time (DST) Adjustment

e

Quasi S-VHS Playback

l

1 Hour Back-up

1-2 SPECIFICATIONS

1) Recording system Format:

Luminance Signal:

Chroma Signal:

Color System:

Number of Video Head:

Tape Speed:

2) Video signal

Input Level:

Output Level:

Signal to Noise Ratio:

Horizontal Resolution:

3) Audio signal

Input Level:

Output Level:

Frequency Response:

Signal to Noise Ratio:

Hi-Fi Dynamic Range:

Wow and Flutter:

4) Receiving channel

CATV:

Antenna Input Impedance:

5) Miscellaneous

Fast forward /Rewind Time:

Power Source:

Power Consumption:

Allowable Ambient Temperature:

Operating Humidity:

Dimensions:

Weight:

Accessories Included:

VHS NTSC Standard

FM recording Low frequency converted direct recording NTSC

4 PCS.

(SP) 33.35 mm/set (LP) 16.67 mm/set (playback only) (EP) 11.12 mm/set

0.5 - 2.0 Vp-p, 75 ohm unbalanced 1 .O Vp-p, 75 ohm unbalanced 45dB Min. (SP mode) 220 lines Min. (SP mode)

- 8 dBs (309 mVrms, 47k ohm Min.)

- 8 dBs (309 mVrms, 1 k ohm Max.) 80Hz - IOkHz (Linear), 20Hz - 20kHz (Hi-Fi) (at SP mode) 43dB (Linear) (at SP mode) 90dB (XA-720)

0.005% max. (XA-720)

VHF:

ch. 2 - 13

UHF:

ch. 14 - 69 ch. A8, A5 - W +84 75 ohm

Approximate 1 minute with T-120 cassette

120 V AC, 60 Hz 20 W at 12OV AC, 60Hz 5 to 40°C (41 to 104°F)

Less than 80% RH XA-705: 360 (W) x 92 (H) x 269 (D) mm(14-3/16 x 3-5/8 x 10-I 9/32 inch) XA-710: 360 (W) x 92 (H) x 276 (D) mm(l4-3/16 x 3-5/8 x 1 O-7/8 inch)

XA-720: 360 (W) x 92 (H) x 264 (D) mm(14-3/16 x 3-5/8 x lo-13/32 inch)

2.8 kg (6.0 Ibs)

75 ohm Coaxial Cable, Opetarion Manual, Timer Setting Card,

Infrared R/C Unit, Dry Battery (3 PCS.)

Only for XA-710, XA-720

l Cable Box Control l Automatic Head Cleaning l VCR Plus + Programming System

Only for XA-720

l Universal R/C with Light up l Viewcam Dubbing

Note: Specifications are subject to change without notice.

4

I

X

A0

w” al

D

XX

DD

44

I-

O

c)

P

-I

0

Remote Control Mode Select

buttons (VCR, TV, CABLE/SAT )

l Used to selecl the component (VCR.

Remote Control

a

TV CABLE BOX/SAT ) to be opera!ed

ON SCREEN button

DISPLAY button

VOL (VOLUME) O/O buttons

A/V buttons

CH (CHANNEL)

VCR PLUS+ button

SET button

ZERO BACK button

SKIP SEARCH button

REPLAY button

n controls

:k/Recording)

TAMPER PROOF button

*lOO. ENT /AM/PM button

INPUT button

*FF button

PAUSE/STILL button

*STOP button

TAPE SPEED button

O/O buttons (SLOW @X3.

DPSS &/a,)

AUTO REPEAT button

Only for XA-720

Q button

Only for XA-720

Symbol Function Statu

l Press the button to Illumlna:e the

VIEWCAM DUBBING button

backlll bultons (Indlcatecl with the

*mark) for 10 seconds

_ 1 I

Only for XA-720

If the 0 button IS pressed whrle the backlit buttons are Illumtnated. they WIII remarn illumlnated for an adddtonal 10 seconds

Inserting the Batteries

Make sure that the battenes have been properly Installed first. Fit two batteries type

“AA”. If the remote control stops worktng. fit new batteries.

remote control

INoTE)

On/y for XA-720

l The operating life of the batteries WIII shorten If the “Backlit” function IS frequently used

and Digital Satellite Receiver must be re-entered.

l After changing the batteries in the remote control, the code settings for the TV, cable box

Ensure the battenes are fitted correctly, matching the polarltles (O/e) indicated in the

l uo nor suoject the remote control to shock, water or excessive humidity

l The remote control may not function If the VCR sensor IS In direct sunllght or any other strong light

l Incorrect use of battenes may cause them to leak or burst Read the battery warnings and use the batteries properly

l Do not mix old and new battenes or mix brands 111 use

before re-tnstalling them

l Remove the batterlcs If the remote control wll not be operated for an extended penod of time

_ I‘ AL-^ ____L

- II LII~: relllute control does not function properly when new batteries are Installed. remove the battenes and watt 5 minutes

I

Cable TV Connections)

(XA-720)

Connection terminals (see Tape Dubbing)

Connectron terminals (see Connecting the VCR and

I I I I I I I

I I I I I

3 tf 4 OUTPUT CHANNEL selector 1 (see Setting the 3 +-+ 4 Output Channel Selector)

I

a Major Components of Your VCR

[Front]

Cassette compartment (see Playback/Recording)

I

Basic function controls

I

(see Playback/Recording)

on the model

l The design may be slightly different depending

INoTE)

Multi-Function Display (explained throughout the operation instructions)

Symbol Function Status Display

Display

Display Symbol Function Status

Function Status

Display Symbol

riimir)

Cable TV Connections)

(XA-710)

VCR enters the operation mode

l The display wtll return to the original mode (counter or clock display) 3 seconds after the

Connection terminals (see Tape Dubbitng)

Connection terminals (see Connecting the VCR and

[Rear]

3 tf 4 OUTPUT CHANNEL selector

(see Setting the 3 t+ 4 Output Channel Selector)

I

Cable TV Connections)

Connection terminals (see Tape Dubbing)

Connectlon terminals (see Connecting the VCR and

(see Setting the 3 cf 4 Output Channel Selector)

VCR enters the operation mode

l The display WIII return to the orIgInal mode (counter or clock drsplay) 3 seconds after the

m Major Components of Your VCR

[Front]

POWER button-

(When pressed to turn on the VCR. some lndrcators

on the Multi-Function display light up, and the Multl-Functron

display bnghtens When the power IS turned off, the Multl-

Function dlsplaj dims )

[Rear]

XA-705 XA-71 O,XA-720

2. DISASSEMBLY AND REASSEMBLY

24 DISASSEMBLY OF MAJOR BLOCKS

TOP CABINET FRONT PANEL

OPERATION (SHUTTLE JOG) PWB DRUM SHIELD

: Remove 3 screws 0. : Remove shuttle switch knob 0.

Remove 2 screws @ and 7 clips @.

: Remove 1 screw 0. Take it out

of connector @.

: Remove 1 screw @ with drum

shield.

TERMINAL PWB :

VIDEO JACK PWB MECHANISM/ MAIN PWB

Remove 3 screws (XA705/720)/2 screws (XA-710) @I, 1 screw @, 2 clips @J and 2 screws @I (XA-710) with Terminal PWB and

Terminal cover.

Disconnect earth lead and wire

lead.

Remove 2 screws 0 and

disconnect wire lead.

Remove 2 screws a, 1 screw @

and 1 screw @.

Remove 1 screw @I with antenna

terminal cover.

TOP CABINET

MECHANISM/

:,.

FRO

SHUTTLE

6

2-2 DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY

1. When removing the mechanism from the main PWB.

Remove the antennacover

the antenna cover.

PWB bottom plate 1 screw @.

Remove

Remove the FFC connects the PWB and the mechanism. Take out vertically not damage the adjacent parts.

the

cable (AA, AD, AH) @ which

the mechanism so

1 screw a, and remove

it does

that

MECHANISM CHASSIS

_I_

2. Removing the mechanism and cassette controller.

Remove 2 screws @

the mechanism, and remove the

to troller.

fixing the cassette controller

cassette

con-

XA-705 XA-71 O,XA-720

I

2-3 Cares when reassembling

INSTALLING THE CASSElTE CONTROLLER

When the cassette controller is installed on the mecha-

nism, the initial setting is essential condition.

There are two initial setting methods, namely electrical

and mechanical.

1. Electrical initial setting

So as to perform initial setting of mechanism execute the

Step 1 of Installation of cassette housing. After ascertaining the return to the initial setting position (*I) install the cassette controller. (Conditions: When mechanism

and PWB have been installed)

Pulley feed gear

mark (*I)

2. Mechanical initial setting

Feed the pulley feed gear of loading motor with screw

driver. After ascertaining the return to the initial set

position (*I) install the cassette controller in the speci-

fied position. (This method is applied only for the mecha-

nism.)

/

Casecon drive gear

angle of

casse

tte control

INSTALLING THE MECHANISM ON PWB

Lower vertically the mechanism, paying attention to the mechanism edge, and install the mechanism with due care so that the parts are not damaged. So as to fix the mechanism to the main PWB install two housings. (Fit the antenna cover to one of them. For other, fix the vicinity of loading motor and solder joint side of main

PWB.) Connect again the FFC cable (AA-MH, AD-ME,

AH-MH) between the mechanism and the main PWB.

END SENSOR

REC TIP SW

PARTS WHICH NEED PARTICULAR CARE

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

AE CONNECTOR

AC CONNECTOR

8

XA-705 XA-71 O,XA-720

I

REMOVING AND INSTALLING THE CASSETTE HOUSING

l Removal

1. In the cassette removing mode remove the cassette.

2. Unplug the power cord.

3. Remove in the following numerical order. a) Remove two screws 0. b) Slide and pull up the cassette housing control.

Notes:

1.

When fitting the S/E sensor holder to the cassette controller frame L/R, take care.

2.

Misengagement of teeth of casecon drive gear and

drive angle gear causes malfunction. (The cassette

cannot be set, load and ejection are repeated).

.

In the case when you use the magnet screw driver,

3

never approach the magnet driver to the A/C head,

FE head, and drum.

4.

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

.

After installing the cassette housing control once

5

perform cassette loading operation.

TO RUN A TAPE WITHOUT THE CASSETTE

HOUSING CONTROL ASSEMBLY

1 .

Remove the full-surface panel.

2 .

Short-circuit TP801.

Plug in the power cord.

3 4:

Turn off the power switch.

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

5 .

Open the lid of a cassette tape by hand.

Hold the lid with two pieces of vinyl tape.

6 7:

Set the cassette tape in the mechanism chassis.

.

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

8

prevent floating.

9 . Turn on the power switch.

Perform running test.

10

Figure 4-I.

0 Reassembly

1. Before installing the cassette housing control, shortcircuit TP801 provided at the center (when facing to the main PWB), press the eject button. The casecon drive gear turns and stops when the positioning mark

. .

appears. Engage two teeth of casecon drive gear

with the three teeth of casecon drive angle gear, and

set on the mechanism chassis as shown below.

Casecon

Casecon drive angle gear

-7

/

Weight to prevent

Figure 4-3.

Note:

The weight should not be more than 500g.

0 To take out the cassette tape.

1. Turn off the power switch.

2. Take out the cassette tape.

Mechanism chassis

Figure 4-2.

2. Install in the reverse order of removal.

XA-705 XA-71 O,XA-720

(BOTTOM VIEW)

. Function

No

NO

. Function

15 Drum ass’y 22 Reel belt

16 Loading motor 23 Clutch lever

17 Drum motor 24 Limiter pulley ass’y

18 Tu pole base ass’y 26 Shifter

19 Slow brake 27 Fixing guide

20 Master cam

21 Capstan D.D. motor

10

XA-705 XA-71 O,XA-720

MECHANISM ADJUSTMENT, REPLACEMENT, ASSEM-

4. BLING AND CLEANING METHODS

The explanation given below relates to the on-site general service (field service) but it does not relates to the adjustment and replacement which need high-grade equipment, jigs and skill. For example, the drum assembling, replacement and adjustment service must be performed by the person who have finished the technical courses.

4-l MECHANISM CONFIRMATION ADJUSTMENT JIG

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

.

No

1.

Torque Cassette Meter

Jig Item

Part No.

JiGVHT-063 CZ

Code Configuration

&!5$2@

Remarks

This cassette torque meter is used for checking and adjusting the torque of take-up for measuring tape back tension.

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

and adjusting the reel disk height.

transformer clearance

10 Guide roller height

’ adjustment drive

X value adjustment

“*

gear type screw driver

12

Reverse Guide Height

.

Adjusting Jig

JiGDRiVERH-4 AP

JiGDRiVER- BM @------$$

JiGRVGH-F18 BU

11

This screwdriver is used for adjusting the

guide roller height.

For X value adjustment

This Jig is used for height

adjustment of the reverse guide.

XA-705 XA-71 O,XA-720

MAINTENANCE CHECK ITEMS AND EXECUTION TIME

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

500 1000 1500 2000 hrs. hrs. hrs. hrs.

Guide Roller Ass’y

Sup Guide Shaft

Retaining Guide cl

cl 0 q

cl

q

Cl cl

Slant Pole or Pole Base cl (7 q

Reverse Guide Shaft Tension Pole

Full-erase Head

A/C Head

Upper and Lower Drum Ass’y

Capstan D.D Motor

Pinch Roller Ass’y 0

cl

q

I7 0 q

0

ocl on 00

II 0 0 q

q

0

cl

0

Possible symptom

encountered

0

Lateral noises Head occasionally blocked

q

cl

CII

0

Poor color and beating

0

Small sound or distortion sound Poor S/N ratio, no color

Poor flatness of the envelope with alignment tape

No tape running, uneven color

0

No tape running, tape slack

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

Reel Belt

Tension Band Ass’y

Loading Motor

Idler Ass’y

cl

0

motion

0 Screen Swaying 0

Cassette not loaded or unloaded

0

No tape running, tape slack

Limiter Pulley Ass’y 0

SUP/TU Main Brake Levers 0

0

Tape Slack

Reel Disk /\

AHC (Auto Head Cleaner)

l

NOTE:

0: Part replacement, Cl : Cleaning, n : Apply grease

Replace when roller dirted

0

Loading Motor, Guide Roller Ass’y and FE Head are replaced at about 2000 hrs.

<Specified> Cleaning liquid: Industrial ethyl alcohol

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

found, clean or replace parts.

12

3. FUNCTION OF MAJOR MECHANICAL PARTS

(TOP VIEW)

n 37

XA-705 XA-71 O,XA-720 !O

No

6

0

.

Full erase head Sup pole base ass’y Tension arm Idler ass’y Pinch drive lever ass’y Supply reel disk Sup main brake 14

Function No .

n

4

13

8

Tu main brake

9

Pinch drive cam

10

NC Head ass’y

11

Reverse guide

12

Casecon drive gear

13

Take-up reel disk

Pinch roller lever ass’y

Function

XA-705

r XA-71 O,XA-720

r

REEL DISK REPLACEMENT AND HEIGHT

CHECK

0

Removal

Remove the cassette housing control assembly.

1. .

Pull the tension band out of the tension arm ass’y.

2

Remove the Sup/Tu main brake ass’y.

3 4:

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

the reel disk.

Note:

Take care so that the tension band ass’y and main brake

ass’y (especially soft brake) are not deformed.

Tension arm ass’y

Sup main brake ass’y

Tension band ass’y

Supply reel’ disk

Tu main brake ass’y

I

Take-hp reel disk

Notes:

1 .

When installing the reel disk, take due care so that the tension band ass’y is not deformed and grease does

no adhere.

2.

Do not damage the Sup main brake ass’y. Be careful

so that grease does not adhere to the brake surface.

0

Reassembly (Take-up reel disk)

1.

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

. d

2

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

shaft.

3

Check the reel disk height and reassemble the takeup main brake ass’y.

Notes:

I. Take care so that the Tu main brake ass’y is not

damaged. Take care so that grease does not adhere the brake surface.

2. After reassembly, check the video search rewind back tension (see page 17) and check the brake

torque (see page 19).

l Height checking and adjustment

Notes:

1.

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

2 .

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

Figure 4-4.

Note:

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

Figure 4-5.

0

Reassembly (Supply reel disk)

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

1 .

Match the phases of reel disk and reel relay gear, and

2 .

set the new reel disk. After checking the reel disk height, wind the tension

3 .

band ass’y around the reel disk, and insert into the

hole of tension arm ass’y.

Assemble the Sup main brake ass’y.

4 .

Myter plane

SUPPl

Take-up reel disk

Figure 4-6.

Note:

Check that the reel disk is lower than part A but higher

than part B. If the height is not correct, readjust the reel

disk height by changing the poly-slider washer under the reel disk.

14

Note:

Whenever replacing the reel disk, perform the height

checking and adjustment.

Reel disk height adjusting jig

t

10+0.2mm + ,

Reel disk

I f

Mechanism chassis

fjqgy

Reel disk

1

Figure 4-7.

CHECKING AND ADJUSTMENT OF TAKE-UP TORQUE IN FAST FORWARD MODE

0

Remove the cassette housing control assembly.

0

After short-circuiting TP801 provided at the center (facing to the main PWB), plug in the power cord.

0

Setting

Set a torque gauge to zero on the scale. Place it on

1. the take-up reel disk.

2.

Press the FF button.

.

To calculate the remaining capacity of the play back

3

mode, slowly rotate the supply reel disk, and then

shift it into the forward mode.

0

Checking

1.

Turn the torque gauge slowly (one rotation every 2 to

3 seconds) by hand in the CW direction.

.

Make sure that the indication of torque gauge is not

2

less than 30mN.m (306gfcm).

Notes:

1. Hold the torque gauge by hand so that it is not moved.

2. Do not keep the reel disk in lock state. Do not allow long-time measurement.

CHECKING AND ADJUSTMENT OF TAKE-UP

TORQUE IN REWIND MODE

0

Remove the cassette housing control assembly.

0

After short-circuiting TP801 provided at the center (facing to the main PWB), plug in the power cord.

0

Setting

1.

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

2.

Press the rewind button.

.

To calculate the remaining capacity, slowly rotate the

3

take-up reel disk, and then shift it into the rewind

mode.

0

Checking

1.

Turn the torque gauge slowly (one rotation every 2 to

3 seconds) by hand in the CCW direction.

2.

Make sure that the indication of torque gauge is not less than 30mN*m (306gfcm).

Torque gauge

\

30mN.m (306gf-cm) or more

Torque gauge

30mN-m (306gf.cm) or more

Idler ass’y

\

cw

The gauge is held at

its maximum value. (Red mark)

Figure 4-8.

0

Adjustment

I

. . If the FF winding-up torque is less than the specified

value, clean the capstan D.D. motor pulley, drive belt, and limiter pulley with cleaning liquid, and check again.

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

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

disk

r ass’y

Figure 4-9.

0

Adjustment

1

I . If the rewind winding-up torque is less than the

specified value, clean the capstan D.D. motor pulley, drive belt, and limiter pulley with cleaning liquid,

rewind again, and check the winding-up torque.

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

Notes:

1. Hold the torque gauge by hand so that it is not moved.

2. Do not keep the reel disk in lock state. Do not allow long-time measurement.

15

XA-705 XA-71 O,XA-720

CHECKING AND ADJUSTMENT OF TAKEUPTORQUE IN RECORD/PLAYBACKMODE

Remove the cassette housing control assembly.

After short-circuiting TP801 provided at the center

(facing to the main PWB), plug in the power cord.

Turn off the power switch.

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

Load the cassette torque meter into the unit. Put the weight (500g) on the cassette torque meter.

Turn on the power switch.

Press the picture record button, and set EP pic-

ture record mode (x3).

Set value EP6.9 + 2.5mN.m (70 + 25gf-cm)

CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN VIDEO SEARCH REWIND MODE

l -Remove the cassette housing control assembly.

l After short-circuiting TP801 provided at the center

(facing to the main PWB), plug in the power cord.

l Setting

Press the playback button and rewind bu the video search rewinding mode.

l Checking

1. Place the torque gauge on the supply ree turn it counterclockwise very slowly (one rotation

every 1 to 2 seconds) and check that the torque is

within the set value 14.0 k 3.9mN.m. (144 k 40gfcm)

Torque gauge

*

\

ton to set

disk, and

ccw

Figure 4-l 0.

0

Checking

1 .

Make sure that value is within the setting 6.9+2.5mN.m

(70*25gfcm).

2 .

The winding-up torque fluctuates due to variation of

rotation torque of limiter pulley ass’y. Read the center

value of fluctuation as setting.

.

Set the EP record mode (x3) and make sure that the

3

winding-up torque is within setting.

0

Adjustment

If

the playback winding-up torque is not within the

setting, replace the limiter pulley assembly.

Note:

When the torque cassette is set, put a weight (500g) to

prevent rise. When the cassette torque meter is taken out. Turn off the power switch.

\

Supply reel disk

Figure 4-11.

Note:

Surely put the torque gauge on the reel disk to measure.

If the torque gauge is raised, accurate measurement is impossible.

l Adjustment

1. If the rewinding playback winding-up torque is not

within the setting, replace the limiter pulley assembly.

Note:

The winding-up torque fluctuates due to variation of

rotation torque of supply reel disk. Read the center value of fluctuation as setting.

16

CHECKING THE VIDEO SEARCH REWIND

I

BACK TENSION

Remove the cassette housing control assembly.

XA-705

XA-71 O,XA-720

After short-circuiting TP801 provided at the center (facing to the main PWB), plug in the power cord.

Checking

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

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

Torque gauge

ccw

Take-up reel disk

/

Figure 4-l 2.

Note:

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

CHECKINGTHE PINCH ROLLER PRESSURE

l Remove the cassette housing control assembly.

l After short-circuiting TP801 provided at the center

(facing to the main PWB), plug in the power cord.

Tension gauge 900 - 1,200g

Capstan shaft

Y

1.

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

.

2

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

.

Gradually return the pinch roller, and measure the

3

pulling force when the pinch roller contacts the capstan shaft.

4.

Make sure that the measured value is within setting

0.9 to 11.8 N (900 to 1,200g).

Tension gauge adapter

Figure 4-13.

CHECKING AND ADJUSTMENT OF

TENSION POLE POSITION

l Remove the cassette housing control assembly.

l After short-circuiting TP801 provided at the center

(facing to the main PWB), plug in the power cord.

l Setting

1. Turn off the power switch.

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

3. Set the cassette tape in loading state.

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

5. Turn on the power switch.

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

0 Checking

Press the play button to set the playback mode.

Weight to prevent float (500s)

Figure 4-l 4.

17

XA-705

XA-71 O,XA-720

0

Checking

1.

Set a cassette unit in the SP

tape, push the REC button to place the

record mode. Now check the tension

pole position.

2.

Visually check to see if the right edge of the tension

pole is within the 1.5 + 0.25mm from the right edge of

the Sup guide shaft.

Sup guide shaft

A-h

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

Figure 4-15.

At left side from the center line

Tension pole adjuster adjusting range

Tension pole

Figure 4-18.

Adjust so that the delta mark of tension pole adjuster

is within 90” range (left, right).

CHECKING AND ADJUSTMENT OF RECORD/PLAYBACK BACK TENSION

0

Remove the cassette housing control assembly.

1.5 * 0.25mm

Figure 4-l 6.

Insert the slotted screwdriver in the tension pole ad-

juster, and rotate counterclockwise.

At right side from the center line

0

After short-circuiting TP801 provided at the center (facing to the main PWB), plug in the power cord.

0

Setting

1

Turn off the power switch.

2:

Open the torque cassette meter and fix with tape.

3

Set the cassette tape in loading state.

4:

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

.

5

Turn on the power switch.

Weight to prevent float (500g)

Cassette torque meter

Figure 4-19.

1.5 k 0.25mm

Figure 4-l 7.

Insert the slotted screwdriver in the tension pole ad-

juster, and rotate clockwise.

18

0

Checking

1.

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

.

2

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

l Adjustment

1. If the indication of torque cassette meter is lower than

the setting, shift the tension spring engagement to the part A.

2. If the indication of torque cassette meter is higher than the setting, shift the tension spring engagement to the part 9.

A B +---+

f

Tension arm

/

Tension spring

XA-705 XA-71 O,XA-720

I

0

Checking the brake torque at the take-up side

Torque

Take-1

up reel K ‘//

disk

Figure 4-20.

CHECKING THE BRAKE TORQUE

0

Checking the brake torque at the supply side

@/

\

I

Torque gauge

Supply reel disk

3.9-9.8mN.m (40-I OOgfxm)

8.8-23.5mN.m (80-245gf.cm)

Figure 4-21.

Remove the cassette housing control assembly.

CCW: 8.8-23.5mN.m (80-245gf.cm) cw: 4.9-11.8mN.m (50-I 20gf.cm)

Figure 4-22.

0

Remove the cassette housing control assembly.

0

After short-circuiting TP801 provided at the center (facing to the main PWB), plug in the power cord.

0

Setting

1.

Switch from the FF mode to the STOP mode.

2 .

Disconnect the power cord. .

3 .

Set a torque gauge to zero on the scale. Place it on

the take-up reel disk.

0

Checking

1.

Turn the torque gauge at a rate of about one turn/2 set in the CCW direction/CW direction so that the reel disk and torque gauge pointer rotates at equal speed and make sure that the value is within the setting (CCW direction: 8.8 to 23.5mN.m (80 to 245gfcm), CW direction: 4.9 to 11.8 mN-m (50 to 120gfcm).

0

After short-circuiting TPSOI provided at the center (facing to the main PWB), plug in the power cord.

0

Setting

Set a torque gauge to zero on the scale. Place it on

1 .

the supply reel disk. Switch from the FF mode to the STOP mode.

2 .

Disconnect the power cord.

3 .

0

Checking

Turn the torque gauge at a rate of about one turn/2 set in the CW direction/CCW direction with respect to the supply reel disk so that the reel disk and torque gauge pointer rotate at equal speed, and make sure that the value is within the setting (CW direction: 8.8 to 23.5mN.m (80 to 245gfcm); CCW direction: 3.9 to

9.8mN*m (40 to 1OOgfcm).

2

Adjustment of the brake torque at the supply side and

.

the take-up side

0

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

0

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

19

XA-705 XA-71 O,XA-720

REPLACEMENT OF A/C (Audio/Control) HEAD

1. Remove the cassette housing control assembly.

2. In unloading state unplug the power cord.

l Removal

1. Remove the screws @@@, Azimuth screw and Tilt screw.

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

Notes:

When replacing, never touch the head. If you touched,

1. clean with the cleaning liquid.

2. When removing the screw 0, take care so that the spring may spring out.

3. Align the left end of gear of A/C head arm with the

punched mark of chassis, tentatively tighten the screws @ and @ so as to ensure smooth motion of A/C head arm. Tentative tightening torque must be

0.15 to 0.20 N*m (1.5 to 2.0kgfcm).

Figure 4-25.

Notes:

1 .

If the screws @ and @ loose, the azimuth and change when they are finally tightened. Therefore care must be taken.

2.

After completion of A/C head be sure to adjust tape drive train. (Execute the running adjustment by the method described in Page 22, 23.)

are tighten tentatively too height of A/C head may

Figure 4-23.

0

Replacement

1

Solder the removed PWB to the new head assembly.

2. Adjust the height from the A/C head arm (lower

surface) to the A/C head plate to 10.8mm with slide calipers. (3 places of azimuth screw section, tilt screw section and A/C head front section)(See the figure below.)

Solder

head PWB

Never touch the head

A/C head plate

10.8mm

Figure 4-24.

20

XA-705

I

i XA-71 O,XA-720

A/C HEAD HEIGHT ROUGH ADJUSTMENT

l Setting

f@ \

Cassette tape

Mechanism chassis

Weight to prevent float (500g)

/

Height screw

Azimuth screw

Tilt &rew

Figure 4-26.

HEIGHTADJUSTMENTOFREVERSEGUIDE

1 Adjust the height from the mechanism chassis to the

reverse guide lower flange to 13.38 mm, using the reverse guide height adjustment jig, in tape loading state. (Refer to Figure 4-28 (a) (b).)

Reverse guide height adjusting jig

\

Reverse guide height J

adjusting jig

Reverse guide

I?

I

Mechanism

chassis

,$

Figure 4-28.

Rotate counterclockwise the reverse guide height adjustment nut l/l 0 turn. (For height adjustment use the reverse guide height adjustment box driver

(JiGDRiVER 1055)).

Box driver

ccw

13.38mm

1. Set the cassette tape in the unit.

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

mode.

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

below.

A/C head 3

.

Figure 4-27.

0 Adjustment

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

Height adjusting nut

Figure 4-29.

u. Set the tape, and check for tape crease near the

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

Capstan

/‘motor shaft

Jide

Reverse guid;

L- En example of

I

crease near the reverse guide

Fixing gi

* Check for crease

21

from the A direction.

Figure 4-30.

XA-705

XA-71 O,XA-720

ADJUSTMENT

1. Tape run rough Remove the

OF TAPE DRIVE TRAIN

adjustment

cassette housing control assembly. After shortcircuiting TP801 provided at the center (facing to the main PWB), plug in the power cord. Check and adjust the position of the tension pole. (See page 17.) Check and adjust the video search rewind back tension. (See page 17.) Connect the oscilloscope to the test point for PB CHROMA envelope output (TP201). Set the synchronism of the oscilloscope to EXT. The PB

CHROMA signal is to be triggered by the head

switching pulse (TP202). Set the alignment tape (VROATSV) to play. (Put a 500g weight on the cassette tape to prevent lift of cassette tape.)

Guide roller

Figure 4-32.

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

the method stated in “Page 20 Replacement -3.“.

@ Connect the oscilloscope to the audio output

terminal.

@ Using the alignment tape in which 1 kHz linear

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

@ Using the alignment tape in which 7 kHz linear

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

@Repeat the above steps @ and @ a couple of

times. Finally make the above adjustment step

.

@I

@ Bp

c-7

Figure 4-31.

Press the tracking button (+), (-) and change the envelope waveform from max to min and from min to max. At this time make sure that the envelope waveform changes nearly parallel. Unless the envelope waveform changes nearly parallel, adjust the height of supply side and takeup side guide roller so that the envelope waveform changes nearly parallel. (For envelop ad-

justment procedure refer to Figure 4-35.)

Turn the tilt screw to remove the tape crease at

the fixing guide flange. ,

Play back the tape and check for tape crease at

the fixing guide flange.

(1) If there is no tape crease

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

return the tilt screw so that the crease disappears.

(2) If there is tape crease

Turn counterclockwise the tilt screw so that the tape crease disappears.

(Reference) If the tilt screw is turned clockwise

crease appears at the lower flange.

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

rough adjustment is facilitated.

Especially the outlet side envelope waveform must

have higher flatness.

I- For X value adjustment

Adjust the X value, turning the geartype screwdriver.

Figure 4-33.

3. Tape run adjustment Connect the oscilloscope to PB CHROMA envelope output test point, set oscilloscope sync to EXT, trigger-input the PB CHROMA signal (head switching pulse). Rough adjustment of X value Tentatively fixA/C head arm screws @ and @ by the method described in Page 20 “Replacement

II

-3 Play back the alignment tape (VROATSV), and

shortcircuit TP802. As a result the auto-tracking is automatically cancelled, so that the X value adjustment mode is set.

Move the A/C head with the X value adjustment

gear driver (JiGDRiVER-6) by the method shown

in Figure 4-33, and adjust the A/C head so as to

get the maximum envelope waveform. (Note: When the A/C head is adjusted, adjust so that the maximum envelop waveform is obtained nearest the position of initial setting made in Page 20.)

@ Next, change the alignment tape to VROEFZCS

to playback. Press the tracking button (+), (-) and change the envelope waveform from max to min and from min to max. At this time adjust the height of supply and take-up side guide roller with the

22

adjustment driver (JiGDRiVERH-4) so that the envelope waveform changes nearly parallel.

If the tape is lifted or sunk from the helical lead surface, the PB CHROMA envelope waveform appears as shown in Figure 4-35. Press the tracking button (+), (-) and make sure that the envelope waveform changes nearly parallel. Finally check tape crease near the reverse guide. If tape crease is found, remove it as stated in Page 21 “HEIGHT ADJUSTMENT OF REVERSE GUIDE” item 3.

XA-705 XA-71 O,XA-720

PB CHROMA _ Envelope

Head switching pulse

Figure 4-34.

When the tape is above the helical lead.

I-

Supply side

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

Adjustment

envelope.

4. A/C head X value adjustment

Tentatively fix A/C head arm screws @ and @ by the method described in Page 20 “Replacement

II

-3 Playback the alignment tape (VROEFZCS), and

shortcircuit TP802. As a result the auto-tracking is automatically cancelled, so that the X value adjustment mode is set.

Move the A/C head with the X value adjustment gear driver by the method shown in Figure 4-33,

and adjust the A/C head so as to get the maximum

envelope waveform. (Note: At this time adjust so as to get the maximum envelope waveform nearest the A/C head position which has been set in case of X value rough adjustment as stated in Page 22,3-a). Tighten finally the screws @ and 0. Be sure to tighten at firstthe screw @ and then the screw 0. Final tightening torque is 0.6N.m (If the screw @ is tightened first, the X value may deviate.)

Take-up side

i:i”

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

Figure 4-35.

0

@

Note:

When the A/C head X value adjustment is performed, be sure to perform at first X value rough adjustment (refer to Page 22,3-Q).

When the tape is below the helicallead.

Supply side

Take-up side

pq

\

. /

/

\

Supply side guide roller Take-up side guide roller rotated in counterclock- rotated in counterclock-

wise direction (raises wise direction (raises

guide roller) to make the guide roller) to make the

tape float above the helical tape float above the

lead. The supply helical lead. The take-up side guide roller is then rotated in the clockwise rotated in the clockwise direction to flatten the direction to flatten the envelope. envelope.

side guide roller is then

-_H

/

0

Adjust the playback switching point (Refer to the electric adjustment method.) Playback the self-picture-recorded tape, and check the flatness of envelope waveform and sound.

Figure 4-36.

23

XA-705 XA-71 O,XA-720

REPLACEMENT OF THE CAPSTAN D.D.

(DIRECT DRIVE) MOTOR

l Remove the mechanism from the main PWB. (Refer

to Page 7 “When removing the mechanism from

the main PWB.“)

l Removal (Follow the order of indicated num-

bers.)

1. Remove the reel belt 0.

2. Remove the three screws @.

motor

Capstan D.D. motor

REPLACEMENT OF DRUM D.D. MOTOR

1 .

Set the ejection mode.

2 .

Withdraw the main power plug from the socket.

0

Removal (Perform in numerical order.)

1 .

Disconnect the FFC cable 0.

2 .

Unscrew the D.D. stator assembly fixing screws 0.

3

Take out the D.D. stator assembly 0.

4:

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

.

5

Take out the D.D. rotor assembly 0.

Notes:

1.

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

2

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

.

3

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

4.

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

5.

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

Reel belt

Figure 4-37.

0

Reassembly

1

.

Taking care so that the capstan shaft does not

contact the mechanism chassis, set its position on the mechanism chassis, and then install with the three screws.

2. Install the reel belt. Notes:

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

2. Set the tape, and check for the tape crease near the reverse guide in the playback mode. Adjust the A/C head and azimuth as stated in Page 22 item 2. If crease is found, adjust as stated in Page 21 “HEIGHT ADJUSTMENT OF REVERSE GUIDE”.

D.D. stator ass’y

1

P

FFC

1. rotor ass’y

Upper drum

Figure 4-38.

24

,

XA-705

XA-71 O,XA-720

REPLACING THE UPPER AND LOWER DRUM ASSEMBLY

l Replacement (Perform in the numerical order)

@ Remove the motor as stated in Page 24 D.D. motor

replacement.

@ Remove the drum earth brush 8.

Remove the dru

0

drum assembly 0 .

[Cares when replacing the drum]

1.

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

2 .

Do not touch directly the drum surface.

3

Fit gently the screwdriver to the screws.

4:

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

.

5

Make sure that the drum surface is free from dust, dirt

1

I

and foreign substances.

.

After replacing the drum be sure to perform the tape

6

running adjustment. After that, perform also the electrical adjustment.

l Playback switching point adjustment l X-position adjustment and check l Standard and x-3 slow tracking adjustment

7.

After replacing the drum clean the drum.

m base

@ from the

upper

and lower

ASSEMBLING OF PHASE MATCHING MECHANISM COMPONENTS

0

Assemble the phase matching mechanism components in the following order.

1 .

Assemble the pinch roller assembly and pinch drive cam.

2.

Mounting the shifter (on the back of the mechanism

chassis).

3 .

Mounting the master cam (on the back of the mechanism chassis).

4.

Assemble the connection gear, slow brake and load-

ing motor parts.

0

Pinch drive cam and pinch roller assembling

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

(l)Reverse drive lever @ (2)Reverse guide spring @ (3)Reverse guide lever ass’y @ (4)Reverse guide height adjusting nut @ (5)Pinch drive cam @ (6)Pinch roller ass’y @ (7)Open lever 0

Figure 4-39.

Figure 4-40.

25

XA-705 XA-71 O,XA-720

@Insert Reverse Guide Lever Ass’y

@ Insert pinch drive cam

Insert reverse guide lever

Fit the pinch drive cam so that the notch of pinch drive cam aligns with the dent of pinch drive lever

- Fit the pinch drive cam so that the notch of

pinch drive lever assembly aligns with the

half-round notch of chassis.

ass’y

Pinch drive lever ass’y

Figure 4-41-l.

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

Pinch Roller Double Action Lever Ass’y

Phase Matching Point @

@Insert Open Lever.

G3

Open lever

\

R@

Figure 4-41-2.

Figure 4-41-3.

INSTALLING THE SHIFTER

._

Capstan D.D. moto

Reel pulley

Drum

/ iK&w*o

1.

Make sure that the loading gear is at the point @ as shown below.

2.

Install, paying attention to @ insertion points and @

release points.

.

3

For the phase matching at the insertion point 0, see the point @ as shown below.

4.

Finally fix the inserts @ and @.

(Bottom side of mechanism chassis)

Figure 4-42.

Insert point @

Phase-Matching point @

notch

-/Y I

/ \ / -I

Rotatior)(\l /

Figure 4-43.

27

Insert

- point @

XA-705 XA-71 O,XA-720

INSTALLING THE MASTER CAM (AT REAR SIDE OF MECHANISM CHASSIS)

1. Make sure beforehand that the shifter is at the point

as shown below.

2. Place the master cam in the position as shown below.

E ring

w

Master cam

Face the wide tooth side ward

Figure 4-44-l.

REPLACEMENT OF LOADING MOTOR

l Removal

lly grease

PP

APPl

Note: See the figure below for the phase matching between

the master cam and the casecon drive gear.

3. Finally fix with the E ring.

Master cam

nd notch

When

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

Figure 4-44-2.

Figure 4-45.

l Replacement

1, Remove the loading motor, and install the replace-

ment loading motor as shown below.

10.2 “_& mm

-II

Figure 4-46.

The loading motor pressing-in must be less than 14.7 N (15 gfb

Adjust the distance between motor and pulley to 10.2

28

ASSEMBLY OF CASSETTE HOUSING

1. Drive Gear and R Drive angle ass’y

grease

Figure 4-47.

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

Top surface should be fre

Drive angle

Drive gear R

. Frame

Figure 4-48.

29

XA-705 XA-71 O,XA-720

5. ELECTRICAL ADJUSTMENT

Notes:

l Before the adjustment:

Electrical adjustments discussed here are often required after replacement of electronic components and mechanical parts such as video heads. Check that the mechanism and all electric components are in good working condition prior to the adjustments,othetwise adjustments can not be completed.

l lnstrliments required:

l Color TV monitor l Audio signal generator l Blank video cassette tape l Screwdriver for adjustment l RF sianal aenerator

l Dual-trace oscilloscope l AC milli-voltmeter l Alignment tape (VROATSV, VROABZGS) l Color bar generator

*1 *2 *3 *4 *5 *6 *7 *8

. . .

TP201-204

R163

. . . . . .

TP161-163

. . .

TPI 68-169

. . .

TPI 64-165

. . .

TP801

R724

. . . . . .

TP802

Figure 5-l.

30

XA-705 XA-71 O,XA-720

SERVO CIRCUIT ADJUSTMENT

5-l ADJUSTMENT OF HEAD SWITCHING

POINT

Measuring Instrument

Mode

I

Cassette

I

Test Point VIDEO OUT jack to CH2

Control ’ R724 Head switching point

Specification

I

1.

Remove the front panel and play the alignment tape.

2.

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

.

3

Playback the alignment tape, and then short circuit between TP802 on the main PWB, and press both CH button (+) and CH button (-) at same time.

4.

Adjust R724 so that the leading edge of.the head switching pulse is 5.5H (lines) ahead of the vertical sync as shown in Figure 5-2.

.

Cancel the short circuited.

5

Dual-trace oscilloscope

Playback

I

Alignment tape (VROABZGS)

I

TP202 (Sig.)-TP203 (GND) to CHI

adjustment control

5.5+ 0.5H (lines)

I

5-2 ADJUSTMENT OF FV (False Vertical

Sync) OF STILL PICTURE

Measuring Instrument

Mode

I

Cassette

I

Control

Specification

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

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

. Look at the monitor screen and adjust (+) or (-)

3

TRACKING buttons so that the vertical jitter of the picture is minimized.

4.

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

Notes:

1. The FV goes back to the it’s initial state when the unit is put into the system controller reset mode due to power failure, etc.

In this case, preset the FV once again.

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

Color TV monitor

Playback still

I

Self-recorded tape (SP mode) (See Note 2 below)

Tracking control buttons(+) or (-)

No vertical jitter of picture

I

5-3 CHECKING OF OFF TRACK

CH-2 VIDEO

CH-1 HEAD SWITCHING PULSE

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

I I- 5.5+0.5H (lines) d

I I

8 I

Figure 5-2.

V-sync.

.

Measuring Instrument

Mode

I

Cassette Self-recorded tape (EP mode)

Control I Tracking control buttons(+) or (-)I

I

Specification

I

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

2. Short circuit between TP802 on the main PWB, and press both CH button (+) and CH button (-) at same

time.

3. Press the tracking buttons (+) and (-) 20 times each

to bring the tracking off center. Make sure that:

1) There is nothing unusual on the playback screen.

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

4. Cancel the short circuit.

Note:

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

Color TV monitor

Playback

I

(See Note below)

No Poor picture and Hi-Fi sound

I

31

XA-705

XA-71 O,XA-720

I

MTS CIRCUIT ADJUSTMENT.

(Hi-Fi MODELS ONLY)

5-4 ADJUSTMENT OF SIF-INPUT LEVEL

Measuring

Instrument

Mode

I

Input Signal 1 RF CH-11 (at 1 kHz lOO%MOD.) 1

I

Test Point

I

Control

I

Specification

I

1. Feed the RF signal CH-10 (at 1 kHz lOO%MOD.) to antenna terminal.

2. Connect the AC milli-voltmeter to AUDIO OUT (L) .

jack

3. Adjust RI 41 (S-IF ADJ.) so that the AC milli-voltmeter reads -3 dBs.

5-5 ADJUSTMENT OF FILTER

AC milli-voltmeter and RF signal generator.

E-E

I

AUDIO OUT (L) jack

I

RI41 (S-IF ADJ.)

I

-3 k 2dBs (1.2-2.OVp-p)

I

5-6 ADJUSTMENT OF STEREO VCO

I

I I

I

Measuring Instrument

Mode

Input signal

Test point

Control

Specification

I

1. Make the short circuited to TPI 62 (Sig.)-TPI 63 (GND).

2. Connect the AC milli-voltmeterto TPI 68(Sig.)-TPI 69 (GND).

3. Make a note of the level of TPI 68 (Sig.)-TPI 69 (GND).

4. Feed the 15.734kHz at 50mVrms signal to the TPI 61 (Sig.)-TPI 63 (GND).

5. Adjust RI 62 (STEREO VCO ADJ.) so that the levels for non signal inputed STEP 3. and inputed be just the same.

6. When the 15.734kHz at 50mVrms signal is fed confirm the display “STEREO” is indicated on OSD.

AC milli-voltmeter

E-E

15.734kHz at 5OmVrms

TP168 (Sig.), TP169 (GND)

RI62 (STEREO VCO ADJ.)

I I

Measuring Instrument

Mode

I

Input Signal

I

Test Point

I

Control

I

Specification

I

1. Make the short circuited to TPI 62 (Sig.)-TPI 63 (GND).

2. Connect the AC milli-voltmetertoTP164 (Sig.)-TPI 65 (GND).

3. Feed the 22.9kHz at 245mVrms signal to the TPI 61 (Sig.)-TPI 63 (GND).

4. Adjust RI63 (FILTER ADJ.) so that the AC millivoltmeter reads minimized.

AC milli-voltmeter

E-E

I

22.9kHz at 245mVrms

I

TP164 (Sig.), TP165 (GND)

I

RI63 (FILTER ADJ.)

I

Minimized

I

5-7 ADJUSTMENT OF STEREO

SEPARATION

Measuring Dual AC milli-voltmeter and RF Instrument

Mode

I

Input signal RF CH-10 (300Hz and 3kHz 30%

Test point

Control

Specification

I

1. Feed the RF signal CH-10 (300Hz and 3kHz 30% modulation) to antenna terminal.

2. Connect an Dual AC milli-voltmeter to left channel and right channel output terminales.

3. Set the audio signal to 300Hz and the modulation factor to 30% (Left channel only) and adjust RI64

(SEPARATION (1) ADJ.) so that the difference between left channel and right channel outputs becomes maximized.

4. Set the audio signal to 3kHz and the modulation factor to 30% (right channel only) and adjust RI65 (SEPA-

RATION (2) ADJ.) so that the difference between left

channel and right channel outputs becomes maxi-

mized.

5. Repeat STEP 3. until obtain a specification +24 db.

signal generator.

E-E

I

modulation)

AUDIO OUT (L, R) jack

RI64 (SEPARATION (1) ADJ.) R165 (SEPARATION (2) ADJ.)

Maximized

I

32

I

.

1

A

CASSETTE INSERTION ++ STOP

End

Cassette is ejected and loading

?-

Insert cassette.

motor stops.

Y

sensor close.

Start

Double action rack slides.

Loading motor turns in reverse

in normal

Loading motor starts

direction and master cam turns

counterclockwise.

direction and master cam turns

inserting *

Cassette

Does mechanism position SW. NO

counter clockwise.

(Cassette is judged

caught halfway.)

come off within 2.5 sec.?

YES

NO

Are end sensors at low level

(Cassette LED or some other part

- is judged defective.)

before cassette insertion ?

_

YES

c

Drum motor starts.

1

Tape is loading.

Pinch roller comes into contact.

Cam switch is at PB position.

r --

*

Full-

loading

1

Loading motor stops.

Unloading

NO -

- +

I I 1

YES

Does drum FG pulse output ?

I

End

C.

Cam switch is at

MECHANISM OPERATION FLOWCHART

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

F mechanical timing

Cam graph E

25

Mode check

0

\

/

Cam mark

I

L

20-

Mode detection outside

(D709 SW 8)

15- I lo-

Mode detection

(D708 SW A)

5-

CL STOP FF

300 360

PB SLW

II I

I I

I

UL PU(LD) VSR PB

I II

60 120 180 240

CA/END

CSEJ

VSR

FUl

IULl

1

EJ

I I

I

0 IO 11 111; 0 1 101 I 0 1 I 0 I 1 lo ;

f I1

!

I ; 1 0 11 I 1 11 0

0” ’

open 0

Mode

Cam switch

Rotation angle 0 188 218 252 269 293309 325

S sensor 1 :lI 0 Il]lorO

Modedetection outside 0

’ SenSor close 1

Modedetection inside

+

VSR + PLAY

PLAY + VSR

Press PLAY Key.

I

Press REW key.

Loading motor turns counter-

clockwise and master cam

turns clockwise.

Pinch

roller *

Capstan motor turns

counterclockwise. PB speed.

Release pinch roller.

releasing

reverse direction.

Capstan motor in turns

Idler

swinging

Loading motor turns clockwise.

Pinch

roller =

Press pinch roller.

pressing

NO

I

f

+

i

+

t

1 YES

End

f

Unloading

Loading motor stops.

speed.

Is take-up reel sensor signal

outputted ?

Cam switch is at VSR

position.

I

Set capstan motor to search

‘

I

PLAY + STILL

c

STOP + REC/PLAY

Press STILL key.

1

t

I

End

Capstan motor stops.

I

Press STOP key.

I

t

I

1

I

t

I

t

1

Loading motor stops.

Cam switch is at STILL

Slow brake comes into

I-

contact with capstan motor.

I

master cam turns clockwise.

Loading motor turns in

I

counterclockwise direction and

I

position.

I

1

I

Capstan motor stops.

I

End

REC/PLAY + STOP

--

Slow brake

pressing l

Press FF key.

I

t

Set capstan motor to search

speed.

I

Capstan motor turns

Picture appears.

Is take-up reel sensor signal

outputted ?

1 YES

End

I

Unloading

I

PLAY+ VSi=

I

t

STOP -+ CASSETTE EJECT

Press EJECT key.

Loading motor turns in clockwise and master cam turns

counterclockwise.

Tape

1

Capstan motor turns in reverse direction.

unloading

I

i

Cam switch is at UL position.

Loading motor stops.

I

A

Capstan motor turns

clockwise.

NO )

Does 4 supply reel

pulses output ?

iYES

_

Capstan motor turns

counterclockwise in about

2 seconds.

I

*

I

Capstan motor turns

clockwise.

i

Loading motor turns

clockwise.

I

Eject position.

Cam switch is at

1

L

Cassette

eject

Capstan motor

stops.

jl

1

4

STOP + FF/REW

Press STOP key.

I

Loading motor turns counter-

clockwise.

End

Press FF/REW key. 1

I

FF/REW + STOP

+

End

I I

Brake

FF/REW

operation

function

system in trouble.

NO, Voltage supply

I

2. REC/PLAY FAILURE (MODE RELEASE)

I

f

* supply at loading

NO Does voltage

Is the master cam NO_ Does loading

at PB position ? motor operate ?

motor ?

smoothly through

cam switch ?

YES

r

Loading motor

control system

in trouble.

1 YES 1 YES

1 YES

t

Modes changing

f

system in trouble.

vcc 5v supply ?

NO Does Vco 12V and NO Voltage supply

Does capstan

motor turn ?

YES

.

Replace the

capstan motor.

I

I I

1

YES

1

ass’y and reel disk

1 Check main PWB.

I

MECHANISM TROUBLESHOOTING

Press FF key.

1. FF/REW FAILURE (NO TAPE WINDING)

I

No+ Does loading

Is master cam at

FF position ? motor operate?

YES

1

Modes changing

t

Reolace it.

damaged.

smoothly through

I

Mode sensor

system in trouble

I

1

or master cam

1 malpositioned.

system in trouble.

vcc 5v supply ?

*

NO Does Vco 12V and NO Voltage supply

Does capstan

motor turn in FF (or

I

No Replace the idler

Are idler wheel

ass’y and reel disk

wheel ass’y.

H

YES

in mesh ?

I

YES YES

REW) direction ?

I

Replace the reel

sensor.

NO

H

Does the pulse

output from reel

sensor ?

,an mo

Replace cassette control ass’y.

Replace damaged one with new one.

Check pinch roller drive cam, pinch roller

I

b

drive lever and reverse guide for their actions.

4. UNUSUAL SOUND IN EACH MODE

I

insertion and ejection mode

4-i) Unusual sound in cassette

YES

Is unusual sound heard during

t-

NO

I

cassette countrol running ?

Is unusual sound heard with pinch yES )

roller lever going up or down ?

I I

Is unusual sound heard during

loading/unloading ?

YES

I

L

I-----l

I

Replace loading motor block.

I

3. WINDING FAILURE AT VSR

I

t

Go to 2. REC/

* PLAY FAILURE

NO

Is Playback

function normal ?

routine.

I

YES

I

Press REW key.

I

PLAY FAILURE

Go to 2. REC/

NO

Does master cam

shift to VSR

routine.

--i

YES

position ?

NO

I

Are idler wheel

Replace idler

ass’y and supply

) gear ass’y.

reel disk in mesh ?

YES

Replace limiter

pulley ass’y.

L I

Replace reel

sensor.

NO

Does pulse output

from reel sensor?

--i

I I

YES

I

Check main PWB.

I

4-ii) Unusual sound in FF/REW mode

Adjust reel disk height.

+

NO

Is reel disk height as specified ?

YES

I

t

I

Check reel disk and main chassis.

And replace defective parts.

I

NO

t-i

I

Are there thrust gap found at reel

disk ?

I I

YES

Rearrange the parts on main PWB.

I

Is drive system out of contact with any-YES

part on main PWB ?

L

NO

Replace capstan motor.

YES

Is unusual sound heard ?

Turn capstan motor by hand.

NO

c

,

Check drive system’s gears for

damage. Replace damaged gear

with new one.

l Reel disk

l Limiter pulley ass’y

l Idler wheel ass’y

Replace D914, Q903 and Q904.

FLOW CHART NO.4 POWER TROUBLESHOOTING(4)

Replace IC901

L

Check AT 5V line.

I I

1 The flourescent display tube fails to light up. 1

FLOW CHART NO.5 TIMER(l) TROlJBLESHOOTING

Check negative voltage line and

* power circuit:

I

Check FL801 and IC801.

I

P-----l

1

IYES

iYES

Check power circuit and peripheral

--(of

Check for cracks on the fluorescent

) display tube.

Replace IC801.

I

No power

Check the D914, Q903 and Q904.

I I

I

ho

Replace fuse.

See FLOW CHART NO.2 POWER

TROUBLESHOOTING(2)

i

t

I

Check short circuit or leak of T901

~~O~~*.OY-.lll

Check primary circuit.

*

NO

1

1 1 I

Check primary circuit, Q901, Q902,

C907 thru C909 and C930.

Check each rectifier circuits and

* short-circuit of secondary circuit.

Check Q905, P-FAIL(L)

) signal line and etc.

Is there supply voltage of 5V feed at

pin (I 8) of IC801?

1 In case of Fuse(F901) blown out. 1

Is there 4.0MHz oscillation at

Check short-circuit or leak of D905

pins (19) and (20) of IC801?

I

Is there filament voltage supply

between pins (l)/(2) and (31)/(32)

of the flourescenbdisplay tube?

Also negative voltage applied

between these pins and GND.

1 In case of abnormal noise(sound) 1

Does the fluorescent display tube

11%

FLOW CHART NO.1 POWER TROUBLESHOOTING(l)

1

Replug it a few minutes later.

Unplug the AC power cord.

I

. 1

IVES

Is the fuse good?

I

1 YES

Is AT 5V line normal?

Are AT 44V, AT 12V, AT-24V, AT 18V No

and filament voltage lines normal?

Does “H” level applied at pin (1) of NO

1 YES

IC701?

Check IC701 (system control circuit)

and cam switch circuit.

FLOW CHART NO.2 POWER TROUBLESHOOTING(2)

Replace F901, Q901 and Q902, check

0921 -D925 as a result of check, if thru D909, 0918 and secondary

poor, replace at the same time. circuit.

FLOW CHART NO.3 POWER TROUBLESHOOTING(3)

XX

DD

44

A0

I

*o O1

X

D

b

0

FIX or replace the cassette housrng.

bb

1

I

Check start sensor cover.

b

Check start sensor and all the way

Check IC701 and all the way up

W

Check IC705.

to pin (2) of IC705.

)

A cassette tape is not take in.

c

FLOW CHART NO.8 CASSETTE CONTROL TROUBLESHOOTING(l)

Is cassette housing distorted? YES ’

I

Check switch contact.

I

ANO

I

NO

Does start sensor cover open

when the cassette tape is inserted?

IYES

No

Does pin (79) of IC701 change from

“H” to “L” level when the cassette

NO

.

iYES

tape is inserted?

Does pin (2) of IC705 go to a “H”

(about 1.7V) level when the

cassette tape is inserted?

Does pin (7) of IC705 change to NO

inset-ted?

about IOV when the cassette tape is

1 YES

Is the specified voltage applied at the NO

loading motor terminal when the

cassette tape is inserted?

I

1 YES

Replace loading motor.

I

Replace R/C receiver.

)

I

NO

1

Key-in input is not received.

FLOW CHART NO.6 TIMER(Z) TROUBLESHOOTING

i

Does the key switch make good

contact?

and switches for poor soldering.

I

* Check all the terminals of IC801

Check lines of key in and scan out. b

Replace infrared R/C unit as

required.

hi ( Check AT 5V and GND lines.

R/C receiver and pin (5) of IC701.

b

+ Check between Vout terminal of

I

YES

I

IYES

is there a short in the scan outs or

I

key inputs?

iNO

No

Are pulses received at pins (27) thru f (29) of IC801 when the keys are

IYES

activated?

FLP clock, FLP CS and key data.

Check IC801, IC701 and FLP data,

No operation is possible from the infrared remote control.

I

FLOW CHART NO.7 INFRARED R/C TROUBLESHOOTING

Does infrared R/C unit function?

I

1 I

I

IVES

I

NO

Is there supply voltage of 5V feed at

Vdd terminal of R/C receiver?

iYES

NO

Is “L” pulse sent out Vout terminal

R/C unit is activated?

of R/C receiver when the Infrared

IYES

NO

1s “L” pulse received at pin (5) of

lC701 when the Infrared R/C unit

is activated?

AYES

Replace IC701.

I

1

I

See FLOW CHART N0.12.

(CAPSTAN MOTOR TROUBLE

The cassette tape fails to eject.

I

c

FLOW CHART NO.10 LOADING MOTOR AND EJECT TROUBLESHOOTING

Does the capstan motor start when

the EJECT button is pressed?

SHOOTING)

) Check reel disk and reel drive unit.

NO

IYES

Does the take-up reel disk turn when

r

IYES

the capstan motor is running?

Check take-up reel sensor and all the

NO

Does pulses supply at pin (2) of

way up to IC701.

*

IC701 when the take-up reel disk is

I ,

IYES

turning?

I

Check pin (92) of IC701.

*

N()

Is a “H”(about 1.7V) level supply at

I

pin (4) of IC705 when a reel pulse

has been inputted?

I I

1 YES

r

Check IC705.

I 1

F-i

I

Does voltage (about IOV) sent out

pin (5) of IC705?

I I

1 YES

Check between IC705 and all the

NO

Is there specified voltage supply at

the loading motor terminal? way up to the loading motor.

I r

1

1 YES

I

Replace loading motor.

NO

IYES

Dose the loading motor run?

Replace cassette cam, gear and etc.

I

up to IC701.

Check start sensor and all the way

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

I

FLOW CHART NO.9 CASSE-ITE CONTROL TROUBLESHOOTING(2)

Does the Start sensor pulse at pin NO

(79) of IC701 change from “L” to “H”

level when the cassette tape is

IYES

1 inserted?

) Check end sensor and all the way

Does the end sensor pulse at pin(85) ,No

up to IC701.

of IC701 change from “L” to “H” level

when the cassette tape is inserted?

I

1 YES

I

Check cam switch and all the way

Does the master cam mode shifter

operate normally when the cassette

1-i up to IC701.

tape is inserted?

I

Check IC701.

_______-____*

-I r

--.-

The capstan motor fails to run.

v

FLOW CHART NO.12 CAPSTAN MOTOR TROUBLESHOOTING

Is the voltage (more than about 2 6V ’ NO

DC) given out pin (32) of IC701.

I

Check PC 5V line.

-. __--_.__.____-

i NO

,

1 YES

Is there supply voltage of 5V ttsec! & / __ _ _

pin (8) of MC connector?

; I----- --

1 YES

---__ _ .- _ .-

I

Check between the MC connector

-_-

______ _ i----- - --------------+I z;gW$e ;Nay up to pin (32)

,

Does voltage (more than 2.6V LX !

connector 1.6-2.7V?

I

1

LYES

feed at pin (5) of MC connectrrr?

I --- -- -

I

Replace capstan motor

I

I___--__ .__.. !

I

Check IC801 and IC701, and all

,

) the way to them.

No power is turned on.

I

t

FLOW CHART NO.1 1 SYSTEM CONTROL TROUBLESHOOTING

tN0

IYES

1 YES

Check IC701.

IYES

Check Q951 and all the way up thru

I

to Q952.

I

1 YES

I

J I

Q951? Check Q951 and the AT 5V line.

Does key data pulses Supply at pin NO

(15) of IC701, respectively?

Are there FLP data pulses, FLP clock pulses and FLP control ready pulses supply at to pins

(24), (23) and (22) of IC801, respectively?

I I

Does power control (H) signal at pin , No

(94) of IC701 change from “L” to “H”

level?

Does the base of Q951 change from NO

about 2.OV to 5.OV?

I I

Is 5V sent out of the emitter of

I

Check penperal circuits for poor

I

11

Replace IC701.

xx

No head switching pulse. 1

I

FLOW CHART NO.15 HEAD SWITCHING PULSE TROUBLESHOOTING.

Is the drum motor rotating?

Are there drum PG M.M. signal at

~---~-~- pin (81) of IC701?

signals at pins (66) and (65)

Are there drum PG and drum FG

of IC701, respectively?

Check lines between AD connector _

---_.-

YES

Are there drum PG and drum FG

r-

signals at pins (3) and (5) of

_[ and IC701. 1

I

AD connector?

Check drum motor and the betweerl

1 AD and ME harness. ______

I

Check IC701.

I

*

The drum motor fails to run.

I

c

FLOW CHART NO.13 DRUM MOTOR TROUBLESHOOTING(l)

Is the voltage more than about 2.6V NO

DC given out of pin (31) of IC701?

1 YES

Check between pin (31) of IC701

) and all the way up to pin (1) of ME

Is the voltage more than about 2.6V NO

applied at pin (1) of ME connector?

Check AT 12V line.

connector.

b

NO

I VEC

.

Is the supply voltage of 12V feed to

1 YES

pin (4) of ME connector?

Replace drum motor.

Check drum motor.

I I

The drum motor runs only for a few seconds.

FLOW CHART NO.14 DRUM MOTOR TROUBLESHOOTING(2)

Is drum PG signal given out of pin

(5) of ME connector?

I

1 YES

I 1 t 1

Check between pin (5) of ME

connector and all the way up to *

Is drum PG signal given out of pin No

pin (66) of IC701.

(66) of IC701?

,

1 YES

Check IC701 and readjust R724.

) (HEAD SW POINT control)

Is drum PG M.M. signal given to pin NO

(81) of IC701?

1 YES

I I 1 1

Check IC701.

*

NO

Is H.SW. pulse given out of pin (23)

1 YES

Replace IC701.

of IC701?

xx

DD

Check peripheral circuit of X701.

I

Drum servo does not function.

Is there 14.2MHz oscillation at pins

(37) and (38) of IC701?

I

FLOW CHART NO.16 DRUM SERVO TROUBLESHOOTING

YES

‘

c

In REC mode

I

1

N

10

Is there reference signal (V-SYNC)

at pin (50) of IC701?

YES

--i I

I

See FLOW CHART N0.15. (HEAD

(C770, C771 and R770)

Check composite-sync signal line.

SHOOTING.)

* SWITCHING PULSE TROUBLE

NO

Replace IC701.

NO

I

I I

I

H

I

Replace IC701.

NO

Is pin (31) of IC701 in high

NO

I I

t--i

I

H

I

In PB mode

5

t

of IC701 present?

NO, Is there drum FG signal at pin (65) 4

1 YES

,

Is there head switching pulse at pin

(23) of IC701 present?

Does drum error output at pin (33)

Check drum FG signal line.

1 YES

of IC701?

I

.

I

4 YES

Does drum control voltage supply

at pin (1) of ME connector? impedance?

I

Check harness between AD and ME.

I I I

L

Capstan servo does not function.

2

0

Check composite- No Does the V-SYNC

Only REC mode inoperative

I I I .-I

PB mode

Are REC and/or

I inoperative?

pin (50) of IC701?

signal appear at

Sync signal line.

H

(C770-1, R770)

Does the capstan

) FG signal appear

14.2MHz at

Is there oscillated YES

lC701?

) at pin (67) of

INO

Check between

capstan FG signal

line and the

circuit of X701.

IYES

AC-MC harness.

I 1

t YES

Is there capstan

(34) of IC701?

) error signal at pin

NO

Replace IC701.

Replace AA-MH

harness

Replace IC701.

,’

I ’

FLOW CHART NO.17 CAPSTAN SERVO TROUBLESHOOTING

Only PB mode inoperative

1

0

YES

signal appear at

pin (76) of IC701?

(TP204)

NO

l_

Does PB CTL

+

Is AA-MH harness NO

I I I 1

good?

1 YES

’ NO

Does A/C head _

oprate normally?

Adjust the height _

of the A/C head.

I

@ Check the line between the front/rear video input

@ External input mode

l

- NO

terminal and IC201 pin (3011.

@ (Only for XA-710)

YES

Check the line between SC2301 pin (8) and IC201

pin (28).

Check the line between the U/1/ tuner pin (25) and

@ U/V tuner mode

IC201 pin (31).

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

NO

4

& YES

Does 5V supply at IC201 pins (12), (61) and (EIO)?

NO

~_~

4 NO

Check Q251 periphery.

Does serial data clock signal supply at IC201

pins (63) and (62)?

4

4 NO

Check the line between ICZ!Ol pins (63) and

(62) and IC701 pins (56) and (57).

NO

4 NO

Check the AT 5V line.

FLOW CHART NO.18

Picture E-E does not appear.

Is there picture signal at into IC201 pins (28), (30) and (31)?

Is there picture signal input IC701 pin (49)?

YES

Check the line between IC201 pin (52)

and IC701 pin (49).

Is there picture signal output IC701 pin (47)?

YES

Does 5V supply at IC701 pin (51)?

Is there picture signal output at emitter of Q251

(video output buffer)?

@ Line output: Check Q251 and Q2401 (only for XA-710) periphery and output terminal p,eriphery.

@ RF output: Check Q251 periphery and tuner (pin (6)) periphery.

I

FLOW CHART NO.20

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

I

4

(61) and PC 5V line.

, Check the periphery of IC201 pin

NO

Is voltage 5V applied to the chroma

power terminal IC2Ol pin (61)?

YES

Check between the IC201 pin (60)

Is chroma signal (approx. 143

.No

mVp-p/Burst) input into the

IC201 pin (46)?

Check whether the IC201 pins (71)

YES

and (73) oscillate (3.58 MHz)?

Check between the IC201 pin (58)

NO

Is chroma signal (approx. 180

and pin (35). (Check R505, C512.) )

mVp-p/Burst) input into the

IC201 pin (58)?

b

YES

Is chroma signal (approx. 180

NO

mVp-p/Burst) output to the IC201

pin (35)?

I

NO

Is PRE/REC Vcc 5V applied to the IC201 pin (go)?

I

1

FLOW CHART NO.19

Picture (luminance) record is impossible (E-E mode is possible).

I

t

4

) Check between the IC201 pin (18)

Is luminance signal (approx. 0.5 NO

,

and pin (19). (Check C206.)

Vp-p) input to the IC201 pin (19)?

& YES

Check between the IC201 pin (21)

and pin (42). (Check C208.)

Check between the IC201 pin (39)

l

NO

YES 4

IS luminance signal (approx. 0.3

Vp-p) input to the IC201 pin (42)?

NO

YES

Is luminance signal (approx. 0.5

and pin (26). (Check C212.)

’

Vp-p) input to the IC201 pin (26)?

r

YES

Is luminance signal (approx. 0.5

Vp-p) input to the IC201 pin (39)v

Is voltage 5V applied to the CCD

Check between the IC201 pin (24)

Is luminance signal (approx. 0.5

and pin (23). (Check C210.)

I

Vp-p) input to the IC201 pin (23)?

peripheral circuit. (R201, R202, C203)

+ Check the IC201 pins (13) and (14)

YES

EP mode: Is there record FM signal (approx.20 mAp-p) output at IC201 pins (93) and (94) (EPI) and pins (92) and (91) (EP2)?

No

YES +

Is the luminance signal (approx. 0.5

Vp-p) input and output to the IC201

pins (13) and (14), respectively?

YES

SP mode: Is there record FM signal (approx.20 mAp-p) output at IC201 pins (88) and (89) (SPI) and pins (86) and (87) (SP2)?

Check or replace the cylinder.

Does CCD control voltage (approx.

IC201 pin (57)? Is there clock signal

5V) supply normally pin (37) the

(approx. 7.16 MHz/O.5 Vp-p) for

CCD supply normally to the pin (44)

section power terminal IC201 pin (36)? -

I

from the IC201 pin (69)?

t

I

4

FLOW CHART NO.22

(Although picture is played back, color does not appear (E-E mode is possible). 1

Check the periphery of IC201 pin

l (61) and PC 5V line.

No

Check between the IC201 pin (60)

)

No

and pin (46). (Check C512.)

Check between the IC201 pin (58)

and pin (35)..rk R505, C515.) 1

/f!!%-~+i

Is chroma signal (approx. 508

mVp-p/Burst) output to the IC201

I I

v

YES 4

Is voltage 5V applied to the chroma

power terminal IC201 pin (61)?

Is chroma signal (approx. 403

r

I

mVp-p/Burst) input into the

IC201 pin (46)?

YES

Is chroma signal (approx. 508

mVp-p/Burst) input into the

IC201 pin (58)?

I I

YES

I

Is chroma signal (approx. 286

mVp-p/Burst) input into the

ic2bi pin (54)?-

Replace IC201.

YES 4

Does voltage 5V supply at CCD section power terminal IC201 pin (36)?

FLOW CHART NO.21

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

Is there control voltage approx. 5V supply normally at pin (37) from the IC201 pin (57)?

Is there CCD clock signal (approx. 7.16 MHz/O.5 Vp-p) supply at pin (44) from the IC201 pin (69)?

NO

Check V-H.SW.P. line.

Is luminance signal (approx. 0.4

Check the periphery of IC201 pins

b Check between the IC201 pin (79)

, NO

YES

Is FM signal (approx. 0.4 Vp-p)

input to the IC201 pin (78)?

Is the luminance signal (approx. 0.25 NO

Vp-p) input and output to the IC201 pins

I

(13), (14) and (16) respectively?

and pin (19). (Check C206.)

Check between the IC201 pin (21)

+ Check between the IC201 pin (18)

NO

YES 4

Is luminance signal (approx. 0.5

Vp-p) input to the IC201 pin (19)?

+

NO

YES 4

Is luminance signal (approx. 0.5

I

Vp-p) input to the IC201 pin (42)? and pin (42). (Check C208.)

I

Check between the IC201 pin (39)

YES

Is luminance signal (approx. 0.5 NO

Vp-p) input to the IC201 pin (26)?

YES

Is luminance signal (approx. 0.5

Vp-p) input to the IC201 pin (39)?

I

YES &

Replace IC201.

Is luminance signal (approx. 0.5

Vp-p) input to the IC201 pin (23)? No )

I

t YES

xx

DD

44

&O

X

D

,v O1

I

$ NO

+ YES

+ NO

Replace IC651.

Check BIAS CTL (L) line.

Is the IC651 pin (33) in BIAS CTL (L) state?

v

_ Check the R353 (record current setting resistor) of IC651 pin

NO

(27).

Is there record FM signal output at IC651 pins

4 YES

Check the AA-MZ connector.

(26) and to (22) (ch-l)/pins (26) and (25) (ch-2)?

I

.’

YES

I

17

., < ._,

Is there 600 mVp-p record FM signal (L-ch) output

at IC651 pin (29) monitor terminal?

1 Hi-Fi sound cannot be recorded (E-E mode is normal). 1

Replace IC651.

FLOW CHART NO.25

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

Is there A-H.SW.P input at IC651 pin (35)?

Is there playback envelope signal output at IC651

Check the A-H.SW.P. line from the IC651

4 YES

pins (19) and (18)? (300 mVp-p)

pin (35) to the IC701 pin (26).

c

I

Replace IC651.

I

FLOW CHART NO.26

I Recording in linear audio is impossible (Hi-Fi E-E mode is normal). 1

Check the line between the IC651 pin (53) and

)

NO

Is there audio signal input at IC201 pin (8)?

IC201 pin (8).

4 YES

Check the periphery of IC201 pin (99).

Is the IC201 pin (99) in “L” level?

NO

4 YES

Check the bias oscillation circuit (T601, Q602,

Q603 and Q604).

4 YES

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

Is there audio signal on which bias signal is

superposed output at IC201 pin (6)?

A

No Hi-Fi E-E sound heard.

FLOW CHART NO.23 Hi-Fi TROUBLESHOOTING FLOW CHART NO.24

terminal and

h audio input

NO between the

input at pin (Gl)(L-CH)

(49)(R) and (63)(L) of

and (52) (R-CH)/front

Check line

decoder circuit and audio signal input at pins

the Hi-Fi circuit.

*

signal input to pins NO between MTS

(G)(L-CH) and (44)

(R-CH) of IC651?

Hi-Fi circiut.

>

1 YES

IC651?

YES

Check IC651 and IC701, and

all the way to them.

NO

I

(31) and (32) of IC651?

Are there serial data and

serial clock signals at pins

Check between pin (8) of

H

Does “H” level supply at pin NO

1

IC651 and all the way up

to pin (21) of IC701.

H

(8) of IC651?

1 1 I

YES

Replace IC651.

t NO

t

a

co

Line coupling: Is there audio signal output at pins (58) and (56) of IC651?

RF coupling : Is there audio signal output at pin (57) of IC651?

1 YES

output terminal.

Line coupling: Check line ranging from pins (58) and (56) of IC651 to the audio

pin (2) of tuner (TUl 01).

RF coupling : Check line ranging from pin (57) of IC651 to the audio input terminal

I

t

Check lines

I

Line Audio signal input.

I

Is there rear audio signal

I

+

4

Audio signal input from tuner.

Is there audio

XX

DD

FLOW CHART NO.27

4 YES

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

4 YES

Is the AC head surface clean?

I

YES

Is AC head height adjusted properly?

NO

4 YES

Replace the AC head.

Readjust the A/C head height.

Is pin (99) of IC201 in “L” level?

4 NO

YES

Check the AUDIO MUTE (H) line from pin

v

(99) of IC201 pin (22) of to IC701.

4 YES

Replace IC201.

I

Does IC601 operate normally?

I

NO

I I

t-i

I No record.

c

Is there a signal at pin (4) of

IC201?

FLOW CHART NO.28 LINEAR SOUND RECORDING MODE TROUBLESHOOTING

I

Check AT 12V line.

w

Is pin (2) of T601 in “H” level?

1 I ,

IYES

NO Check T601, Q602, Q603, Q604

Is there a signal (Bias) at pin (6) of

and their peripheral parts.

T601?

IYES

NO Check MH-AA harness and A/C

_ )

Is there a signal (Bias+Audio sig.)

1

head.

I I

at T601?

1

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

Is it possible to confirm the audio signal (PB EQ)

on pin (100) of IC201?

Is there audio signal output at pin (11) of IC201?

Check the line between pin (11) of IC201 and

pin (54) of IC651 .

xx

DD

44

A0

“0 O1

x

D

4

N

0

I

No E-E signal

b and circuits around the audio output

NO Check parts around the audio input jack,

I

FLOW CHART NO.29 LINEAR SOUND E-E MODE TROUBLESHOOTING

Is there a signal at pins (8)

and (9) of IC201?

circuit in TUl 01.

1 I 1

1 YES

I

Check PC 5V line.

Is the supply voltage of 5V NO

H

J I

1 YES

feed to pin (96) of IC201?

I I

,

1 YES

Replace IC201.

v

1 NO

YES

IC201?

Is there ‘IL” level at pin (99) of IC201 I?

Check A-MUTE (H) line.

(57) of IC701.

) IC201 and all the way thru to pins (56) and

1 YES

(62) of IC201?

Are there the serial data and NO Check between pins (63) and (62) of

clock signal at pins (63) and

Is there a signal at pin (11) of NO

I

,

1

Check between pin (11) of IC201 and all the way up to audio output jack

and that between pin (2) of TUI 01.

peripheral circuits.

I

) Check IC6201 and its

, (Only for XA-710) 1

\r YES

Is there a signal at pin (7) of NO

IC6201?

w YES

and that between pin (2) of TUlOl (Tuner).

Check between pin (7) of IC6201 and all the way up to audio jack

I

No playback.

NO

I

FLOW CHART NO.30 LINEAR SOUND PLAYBACK MODE TROUBLESHOOTING

Is there a signal at pin (100) of IC201?

v

YES

Are the MH-AA harness and the PB

AMP’s peripheral parts normal?

Replace defective parts. wNo

1 YES

Clean A/C head.

c

1

Replace IC201.

Is azimuth height of the A/C head

properly adjusted?

Readjust azimuth height. *No

YES

Replace A/C head.

* Check AUDIO MUTE (H) line.

Is there “L” level at pin (99) of IC201? No

NO

IYES

*

IVES

Is there a signal at pin (11) of IC201?

1

Check line between pin (11) of IC201 and the audio output jack, and that between pin (2) of

1 TU1O1, ,

I

peripheral circuits.

) Check lC6201 and its

(Only for XA-710)

I

IYES

Is there a signal at pin (7) of NO

IC6201?

ti YES

and between pin (2) of TUIOI (Tuner).

’ Check between pin (7) of IC6201 and audio output jack,

Part No.

* Description

Ref. No.

Part No.

*

Description Code

DG801 D202 D701 D702 D706 D707

D708 0709 D710 D801 0805 0811

A D902

A 0903 A D904 A D905 A D906 A D907 A 0908 A D909 A 0911 A D912 A D914 A D915

0917 a D918 A D921 A D922 A D923 A 0925

D951

0952

D957

D962

D963

0964

0965

D966

D967

D991

0992

A IC901

Q701

Q702

X501

x701

X702

DUNTK5470TEVJ (XA-705) DUNTK5470TEVK (XA-710) DUNTK5470TEVL (XA-720)

MAIN UNIT (Continued)

DIODES

VVK20U26108-1 V Display

RH-DX0475CEZZ V Diode

RH-PX0270GEZZ V LED

RH-DX0475CEZZ V Diode RH-PX0252GEZZ V GPI S563 RH-PX0252GEZZ V GPI S563 RH-PX0253GEZZ V GPI S94 RH-PX0253GEZZ V GPI S94 RH-DX0475CEZZ V Diode RH-DX0475CEZZ V Diode RH-DX0475CEZZ RH-DX0475CEZZ V Diode (XA-705) VHDlOELS4//-1 V Diode RH-DX0475CEZZ V Diode RH-DX0475CEZZ V Diode VHDI OELS4//-1 V Diode VHDI 5DFl FC/l E V Diode VHDI OELS4//-1 V Diode VHDI S40////-1 VHDI OELS4//-1 V Diode RH-EX0601GEZZ V Zener Diode, 3.6V RH-DX0475CEZZ V Diode RH-EXO613GEZZ V Zener Diode RH-DX0475CEZZ V Diode RH-EXO619GEZZ V Zener Diode VHDI OELS4//-1 VHDRLI N4004-1 VHDRLI N4004-1 VHDRLI N4004-1 VHDRLI N4004-1 RH-EX0677GEZZ V Zener Diode, 33V RH-EX0601GEZZ VHDI S40////-1 VHDRLI N4004-1 V Diode VHDRLI N4004-1 V Diode VHDRLI N4004-1 V Diode VHDRLI N4004-1 V Diode VHDRLI N4004-I V Diode VHDRLI N4004-1 V Diode

RH-EX0631GEZZ V Zener Diode RH-DX0475CEZZ V Diode RH-FX0034CEZZ V Photo Coupler RH-PX0233GEZZ V START Sensor RH-PX0233GEZZ V END Sensor

PACKAGED CIRCUITS

RCRSB0204GEZZ V Crystal, 3.58MHz RCRSBO156GEZZ V Crystal RCRSBOI 38GENl V Crystal, 32kHz

V Diode (XA-71 O/720)

V Diode

V Diode V Diode V Diode V Diode V Diode

V Zener Diode, 3.6V V Diode

AW

AB AC AB AF AF AF AF AB AB AB AB AD AB AB AD AD AD

AF AD AA AB AA

AB

AA AD AD AD AD AD

AB

AA

AF

AD

AA

AB

AE

AD

AG

AF

AD

FILTER

FL801 RFiLC0091 GEZZ V Filter, 4MHz

AD

COILS

LIOI L201 L202 L301 VP-ZKI 01 KOOOO V Peaking IOOuH AB L351 VP-ZKI 01 KOOOO V Peaking IOOpH (XA-720) AB L501 L602 VP-DF221 KOOOO V Peaking 220f~H AB L851 VP-DF221 KOOOO V Peaking 220uH AB

L901 RCiLF0002AJZZ V Coil L902 RCiLP0161 CEZZ V Coil AD L903 RCiLP0161 CEZZ V Coil

VP-CFI 01 KOOOO VP-XF820KOOOO V Peaking 82uH VP-XFI 01 KOOOO

VP-XFI 20KOOOO

V Peaking IOOpH AB

AB

V Peaking IOOpH AB

V Peaking 12f~H AB

(XA-71 O/720)

AK

AD

TRANSFORMERS

T601 T901

RTRNH0086GEZZ V Osc. Transformer RTRNZ0047AJZZ V Pluse Transformer

AD

AV

CONTROLS

RI41 RVR-M4340GEZZ V 47k (B) S-IF Adj. (XA-720) AB RI62 RVR-M4340GEZZ

RI 63 RVR-M4337GEZZ RI64 RVR-M4340GEZZ V 47k (B) Separation (1) Adj. AB

RI65 RVR-M4331GEZZ V 4.7k (B) Separation (2) Adj. AC

R724 RVR-M4343GEZZ V IOOk (B) (XA-720)

V 22k (B) ST VCO Adj. AB

(XA-720)

V 22k (B) Filter Adj. (XA-720) AB

(XA-720)

AB

CAPACITORS

Cl01 VCKYD41 HBIOIK V 100~ 50V Ceramic Cl03 VCEA9AOJW476M V 47 6.3V Electrolytic AB Cl05 VCEAGAOJW108M V 1000 6.3V Electrolytic AC Cl06 VCKYCYlHF1032 V 0.01 Cl08 VCCCCYlHH470J V 47p 50V Ceramic AA Cl09 VCCCCYlHH470J V 47p 50V Ceramic AA Cl61 VCEASMlCW106M V IO

Cl62 VCEASAlHW475M V 4.7

Cl63 VCKYCYlEB123K V 0.012 25V Ceramic AA

Cl64 VCKYCYI HB562K V 5600~ 50V Ceramic

Cl65 VCEASMlHW474M V 0.47 50V Electrolytic AB

Cl66 VCEASAlHW475M V 4.7

Cl67 VCKYCYlCB473K V 0.047 16V Ceramic AA

Cl68 VCEASAI HW475M V 4.7 50V Electrolytic AB

Cl69 VCEASMI HW475M V 4.7

50V Ceramic AA

16V Electrolytic AB

(XA-720)

50V Electrolytic AB

(XA-720)

50V Electrolytic AB

(XA-720)

50V Electrolytic AB

(XA-720)

AA

85

Ref. No. Part No.

*

Description

Code

Ref. No.

Part No. *

Description Code

DUNTK5470TEVJ (XA-705) DUNTK5470TEVK (XA-710) DUNTK5470TEVL (XA-720)

MAIN UNIT (Continued)

Cl70 VCEASMI HW335M V 3.3

Cl71

Cl72 VCEASMlCWl06M V 10 16V Electrolytic AB

Cl73 VCEASMI HW475M V 4.7 50V Electrolytic AB

Cl74 VCKYCYI HB272K V 2700~ 50V Ceramic

Cl75 VCEASAOJW476M V 47

Cl76 VCESEAlHW474M V 0.47 50V Elect. (N.P) AB

Cl77 VCKYCYlCFl04Z V 0.1

Cl78 VCKYCYlCFl04Z V 0.1

Cl79 VCEASMlCW476M V 47 16V Electrolytic AB

c201

C202 VCKYCYlCF224Z V 0.22 C203 VCCCCYI HHl51 J V 150~ 50V Ceramic C204 VCKYCYlCFl04Z V 0.1 C205 VCCCCYlHH390J V 39p C206 VCKYCYlCFl04Z V 0.1 16V Ceramic AA C207 VCKYCYlCFl04Z V 0.1 16V Ceramic AA C208 VCEASMlCWl06M V 10 C209 VCKYCYlCFl04Z V 0.1 16V Ceramic AA C210 VCKYCYlCFl04Z V 0.1 c211 C212 VCEASMlCWl06M V 10 C213 VCEA9Ml HW225M V 2.2 50V Electrolytic AB C214 VCKYCYOJFl05Z V 1 6.3V Ceramic AB C215 VCKYCYOJFl05Z V 1 6.3V Ceramic AB C216 VCKYCYOJFl05Z V 1 6.3V Ceramic AB

C217 VCEA9MOJW476M V 47 6.3V Electrolytic AB C218 VCKYCYI HFl03Z V 0.01 50V Ceramic AA C219 VCKYCYlCFl04Z V 0.1 C220 VCKYCYlCFl04Z V 0.1 C221 VCEASMlCWl06M V 10 16V Electrolytic AB C222 VCEA9MOJW476M V 47 6.3V Electrolytic AB C223 VCKYCYlCF474Z V 0.47 16V Ceramic AB C225 VCEAGAOJW337M V 330 6.3V Electrolytic AB C251 VCEASMlCW476M V 47 16V Electrolytic AB C301 VCEA9MOJW476M V 47 C302 VCKYCYI HFl03Z V 0.01 50V Ceramic AA C303 VCKYCYI HBIOZK V IOOOp 50V Ceramic C304 VCKYCYI HBIOZK V IOOOp 50V Ceramic C305 VCKYCYI HBIOZK V IOOOp 50V Ceramic C306 VCKYCYI HBIOZK V IOOOp 50V Ceramic

VCEASMlHWl05M V 1

VCEA9MOJWl07M V 100 6.3V Electrolytic AB

VCEASMI HW335M V 3.3

5OV Electrolytic AB

(XA-720)

50V Electrolytic AB

(XA-720)

AA

(XA-720)

6.3V Electrolytic AB

(XA-720)

16V Ceramic AA

(XA-720)

16V Ceramic AA

(XA-720)

16V Ceramic AA

AA

16V Ceramic AA

50V Ceramic AA

16V Electrolytic AB

16V Ceramic AA

50V Electrolytic AB

16V Electrolytic AB

(XA-71 O/720)

16V Ceramic AA 16V Ceramic AA

6.3V Electrolytic AB

AA AA AA AA

c307 C308 c309 c310 c311 C312 c319 C320 c351

C352 .

c353

c354

c355

C356

c357

c501 C502 c503 c504 c505 C506 c507 C508 c509 c511 C512 c513 c514 c515 c517 C518 C521 C601 C602 C603 C604 C605 C606 C607 C608 C609 C610

C611 C612

C613

C616 C617

VCKYCYI HBIOZK V IOOOp 50V Ceramic VCKYCYI HBIOZK V IOOOp 50V Ceramic VCKYCYI HBIOZK V IOOOp 50V Ceramic VCKYCYI HBIOZK V IOOOp 50V Ceramic VCKYCYI EBI 03K V 0.01 VCKYCYI HFI 032 V 0.01 VCCCCYlHHl50J V 15p VCCCCYlHHl50J V 15p VCEA9MOJW476M V 47

VCKYCYlCFl04Z V 0.1

VCKYCYlHB332K V 3300~ 50V Ceramic

VCKYCYI HFI 032

VCKYCYOJFl05Z V 1 6.3V Ceramic

VCCCCYI HHIOI J V 100~ 50V Ceramic

VCCCPAI HH560J V 56p

VCEASMOJWI 07M V 100 VCKYCYI HFl03Z V 0.01 VCKYCYlHB472K V 4700~ 50V Ceramic VCEASMI HW225M V 2.2 50V Electrolytic VCKYCYlHF223Z V 0.022 50V Ceramic VCEASMI HW474M V 0.47 VCKYCYlCFl04Z V 0.1 16V Ceramic VCEASMI HW475M V 4.7 VCKYCYI HFI 032 VCCCCYI HHSROC V 5.0~ VCKYCYI HFl03Z V 0.01 VCKYCYI HFI 032 VCKYCYI HFI 032 VCKYCYlHB33lK V 330~ 50V Ceramic VCEASMI HW335M V 3.3 50V Electrolytic VCKYCYlHF333Z V 0.033 50V Ceramic VCCCCYIHHSROC V 5p 50V Ceramic VCEASMOJWI 07M V 100 VCKYCYI EBl03K V 0.01 VCEA9AOJW226M V 22 6.3V Electrolytic VCKYCYlHB82lK V 820~ 50V Ceramic VCEASMlCWl06M V 10 VCEASMI HW475M V 4.7 VCEASMI HW475M V 4.7 VCEA9MOJW226M V 22 VCEASMI HW475M V 4.7 VCKYCYlCFl04Z V 0.1

VCKYCYlCFl04Z V 0.1 VCKYCYlCFl04Z V 0.1

VCKYCYI EBl83K V 0.018 25V Ceramic

VCKYCYIHBZZZK V 2200~ 50V Ceramic VCEASMlCW476M V 47 16V Electrolytic

V 0.01 50V Ceramic

V 0.01 50V Ceramic V 0.01 50V Ceramic

25V Ceramic 50V Ceramic 50V Ceramic 50V Ceramic

6.3V Electrolytic

(XA-720)

16V Ceramic

(XA-720)

50V Ceramic

(XA-720)

6.3V Electrolytic 50V Ceramic

50V Electrolytic

50V Ceramic 50V Ceramic

6.3V Electrolytic 25V Ceramic

16V Electrolytic 50V Electrolytic 50V Electrolytic

6.3V Electrolytic 50V Electrolytic 16V Ceramic

(XA-705/10)

16V Ceramic 16V Ceramic

(XA-710)

(XA-705/10)

AA AA AA AA AA AA AA AA AB

AA

AB

AA

AB AA AA AB AB AB AA AB AA AA AA AA AA AA AB AA AA AB AA AB AA AB AB AB AB AB AA

AA AA

AA

AA AB

86

XA-705 XA-71 O,XA-720

Part No.

* Description

DUNTK5470TEVJ (XA-705) DUNTK5470TEVK (XA-710) DUNTK5470TEVL (XA-720)

MAIN UNIT (Continued)

C618

C619

C620 C621 C622 C630 C651

C652

C653

C654

C655

C656

C657

C658

C659

C664

VCKYCYI EBI 03K V 0.01 VCKYCYI EBI 03K V 0.01 VCEASMI CWl06M V 10 VCQPYA2AA562J V 5600~ IOOV Mylar VCKYCYlHB222K V 2200~ 50V Ceramic VCKYCYOJFl052 V 1 VCKYCYI CF224Z V 0.22

(XA-720)

VCEA9MOJW226M V 22

(XA-720)

VCEASMI HW475M V 4.7

(XA-720)

VCKYCYI EB103K V 0.01

(XA-720)

VCEA9MOJW226M V 22

(XA-720)

VCKYCYI HB472K V 4700~ 50V Ceramic

(XA-720)

VCKYCYlHB332K V 3300~ 50V Ceramic

(XA-720)

VCEASMlCWl06M V IO

(XA-720)

VCEASMlCWl06M V 10

(XA-720)

VCKYCYlCF224Z V 0.22

(XA-720)

VCEA9MOJW226M V 22

(XA-720)

VCEASMI HW475M V 4.7

(XA-720)

VCKYCYI EBI 03K V 0.01

(XA-720)

C665

C666

C667

C671

C672

C673

C676

C677

VCEASMOJW226M V 22

(XA-720)

VCKYCYlHB472K V 4700~ 50V Ceramic

(XA-720)

VCKYCYlHB332K V 3300~ 50V Ceramic

(XA-720)

VCEA9MOJW476M V 47 6.3V Electrolytic

(XA-720)

VCEASMlCWl06M V IO 16V Electrolytic

(XA-720)

VCKYCYlCF104Z V 0.1 16V Ceramic

(XA-720)

VCEASMlCWl06M V IO

(XA-720)

VCKYCYOJFl05Z V 1

(XA-720)

C678

C679

VCKYCYI CF224Z V 0.22 16V Ceramic

(XA-720)

VCKYCYI CF224Z V 0.22 16V Ceramic

(XA-720)

25V Ceramic 25V Ceramic

16V Electrolytic

6.3V Ceramic 16V Ceramic

6.3V Electrolytic

50V Electrolytic

25V Ceramic

6.3V Electrolytic

16V Electrolytic

16V Ceramic

6.3V Electrolytic

50V Electrolytic

25V Ceramic

6.3V Electrolytic

16V Electrolytic

6.3V Ceramic

AA AA AB

AC

AA AB AA

AB

AA

AB

AA

AB

AA

AB

AA

AB

AA

AB

AA

AB

AA

Ref. No.

C680

C699

c701 C702 c703 c704 c705 C706 c707 C708 c709 c710 c711 C712 c713 c714 c715

c717 C718 c719 C722 C723 C724 C726

C727 c729 c730 c731 C738 c739 c740 c743 c744 c745 c747 c750 C752 c753 c770 c771 c774 c775 C776 C782

c790 c791 c792 c793

c794 C801 C802 C851

Part No.

VCKYCYOJFI 05Z

VCEA9MOJW226M

VCKYCYI HFI 032 VCKYCYI HFl03Z VCEASMI HWI 05M VCKYCYOJFI 05Z

VCKYCYI EBl03K VCKYCYI EBI 03K VCCCCYI HH220J VCCCCYI HH220J VCCCCYI HHI 80J VCCCCYI HH220J VCKYCYI HBI 02K VCKYCYlHBl02K VCKYCYI HBI 02K VCKYCY 1 CFI 042 VCEA9MOJW226M VCKYCYI HB221 K VCKYCYI CFI 042 VCKYCYI EBI 53K VCKYCY 1 HFI 032 VCKYCYI CFI 042 VCKYCYlHFl03Z VCKYCY 1 HFI 032

VCKYCYI CF224Z VCKYCYI HFl03Z VCKYCYI HFI 032 VCKYCYI CFI 042 VCKYCYI HBI 02K VCKYCYI HBl02K VCKYCYI CFI 042 VCKYCYI CF224Z VCEA2AOJW477M

RC-EZOIIIGEZZ VCKYCYI HFI 032 VCKYCYOJFI 05Z VCEA2Al EW337M

VCCCCY 1 HH680J

VCCCCYIHHIOIJ

VCE9EMl HWI 05M

VCKYCYI CF104Z

VCEA9MOJW476M

VCKYCYOJFlO5Z

VCCCCYI HH330J

VCKYCYI HBl02K

VCKYCYlHB102K

VCKYCYI HB102K

VCKYCYlHF1032

VCKYCYOJFI 05Z

VCKYCYI HF103Z

VCEA9MOJW226M

VCEAGAI CW227M

*

V

V V

V

V V V V V V V V V V V V V V V V V V

V V V V V V V V V V V V V V V V V V V V V V V V

Description

1 6.3V Ceramic (XA-720) 22 6.3V Electrolytic (XA-720)

0.01 50V Ceramic

0.01 50V Ceramic 1 50V Electrolytic

1

6.3V Ceramic

0.01 25V Ceramic

0.01

25V Ceramic 50V Ceramic

22P

50V Ceramic

22P

50V Ceramic

18P

50V Ceramic

22P

IOOOp 50V Ceramic IOOOp 50V Ceramic IOOOp 50V Ceramic

0.1 16V Ceramic

22 6.3V Electrolytic 220p 5OV Ceramic

0.1 16V Ceramic

0.015 25V Ceramic

0.01 50V Ceramic

0.1 16V Ceramic

0.01

50V Ceramic

0.01

50V Ceramic

(XA-720)

0.22 16V Ceramic

0.01 50V Ceramic

0.1 16V Ceramic IOOOp 50V Ceramic IOOOp 50V Ceramic

0.1

16V Ceramic

0.22 16V Ceramic

470 6.3V Electrolytic

0.01 Electrolytic

0.01 50V Ceramic 1 6.3V Ceramic 330 25V Electrolytic

50V Ceramic

68P

IOOp 50V Ceramic 1

50V Elect. (N.P)

0.1 16V Ceramic 47

6.3V Electrolytic

1 6.3V Ceramic

50V Ceramic

33P 1OOOp 5OV Ceramic

IOOOp 50V Ceramic IOOOp 50V Ceramic

0.01

5OV Ceramic (XA-720) 1

6.3V Ceramic

0.01

50V Ceramic 22

6.3V Electrolytic 220 16V Electrolytic (XA-71 O/720)

AB

AA AA AB AB AA AA AA AA

AA

AA AA AA AA AB AA AA AA AA AA AA AA

AA AA AA AA AA AA AA AA AB AH AA AB AD AA AA AB AA AB AB AA AA AA AA AA

AB AA AB AC

87

j ~~:5%A-720

Ref. No. Part No.

*

Description Code

DUNTK5470TEVJ (XA-705) DUNTK5470TEVK (XA-710) DUNTK5470TEVL (XA-720)

MAIN UNIT (Continued)

A c901

A c903 A c904 A c905 RC-KZ0029CEZZ A C906 VCKYPA2HB22lK V 220~ 500V Ceramic A c907 VCKYCYlHB472K V 4700~ 50V Ceramic &, C908 VCKYCYlHB22lK V 220~ 50V Ceramic AA A c909 VCKYCYlHB332K V 3300~ 50V Ceramic A c911 VCEAGAI JWl06M V IO 63V Electrolytic AB A c912 VCEAGAl VW477M V 470 35V Electrolytic AD A c913 VCEAGAI CW337M V 330 16V Electrolytic AC A c914 VCEAGAlHW226M V 22 50V Electrolytic AB A C916 VCEAGAOJWI 08M V 1000 6.3V Electrolytic AC

A c917 VCEAGAOJWl08M V 1000 6.3V Electrolytic AC

A C918 VCKYCYlCFl04Z V 0.1 16V Ceramic AA

A c919 VCEAGAOJWI 07M V 100 6.3V Electrolytic AB A c921 VCKYCYOJFl05Z V 1 6.3V Ceramic AB A c922 A c923 A c930

RC-FZ023CUMZZ V 0.01 AC250V Mylar

RC-KZOI 47GEZZ RC-EZ0238CEZZ

VCEAGAl VW477M V 470 35V Electrolytic AD VCKYCYI HFI 032

VCQYTAlHM333K V 0.033 50V Mylar AA c951 VCKYCYlHF333Z V 0.033 50V Ceramic AA C952 VCKYCYOJFl05Z V 1 C953 VCEASMlHW475M V 4.7 50V Electrolytic AB C954 VCEASMlHWl05M V 1 50V Electrolytic AB C957 VCEA9MOJW476M V 47 C958 VCEA9MOJW476M V 47 c971 VCEASMlCWl06M V IO c991 VCEASMlCW476M V 47

V 3300~ ACl25V Ceramic AC V 82 200V Electrolytic AE v 0.01

V 0.01

500V Ceramic AC

50V Ceramic AA

6.3V Ceramic AB

6.3V Electrolytic AB

6.3V Electrolytic AB 16V Electrolytic AB 16V Electrolytic AB

(XA-720)

AF

AA AA

AA

RESISTORS

RJI VRS-CYIJFOOOJ V 0 l/l 6W Metal Oxide AA RJ4 RJ7 VRS-CYI JFOOOJ RJ27 VRS-CYIJFOOOJ V 0 l/l 6W Metal Oxide AA RJ29 VRS-CYIJFOOOJ V 0 l/l 6W Metal Oxide AA

RJ92 VRS-CYIJFOOOJ V 0 RJ94 VRS-CYIJFOOOJ V 0 RI01 VRS-CYI JF47OJ V 47 l/l 6W Metal Oxide AA R103 VRS-CYI JF473J V 47k 1/16W Metal Oxide AA RI 04 VRS-CYI JF681 J V 680 l/l 6W Metal Oxide AA RI05 VRS-CYlJF68lJ RI 06 VRD-RA2BE822J

VRS-CYIJFOOOJ V 0 l/l 6W Metal Oxide AA

V 0

V 680 Ill 6W Metal Oxide AA V 8.2k 1/8W Carbon AA

RI07 VRS-CYlJF822J V 8.2k l/l 6W Metal Oxide AA

RI08 VRS-CYlJFl03J V IOk l/l 6W Metal Oxide AA RI09 VRS-CYlJF56lJ RI10 VRS-CYlJFl53J V 15k l/l 6W Metal Oxide AA RI11 VRS-CY 1 JFI 53J V 15k 1/16W Metal Oxide AA

V 560 l/l 6W Metal Oxide AA

l/l 6W Metal Oxide AA

(XA-705/710)

l/l 6W Metal Oxide AA l/l 6W Metal Oxide AA

(XA-705/710)

(XA-720)

Ref. No.

RI66

RI 68

RI69

RI70

RI71

RI72

RI73

RI74

RI 75

RI76

RI77 Metal Oxide

RI 79‘ VRS-CYI JF333J

RI80 VRS-CYI JFI 03J

RI81 VRS-CYI JF223J

R201 R202 R203 R207 R208 R209 R210 R211 R212 R213 R214 R216

R217

R218

R219 R220 R221 R222 R228

R229 VRS-CYI JFOOOJ

R229

R232

Part No. Description

VRS-CYIJFIOSJ

VRS-CYlJFl04J

VRS-CYI JFI 83J

VRSCYlJFl03F

VRS-CYI JFI 04J

VRS-CYI JF222J

VRS-CYI JF682J

VRS-CYI JF393J

VRS-CY 1 JF473J

VRS-CYI JF473J

VRS-CYI JF392J

VRS-CYI JF332J RI78

VRS-CYI JF682J VRS-CYI JFl82J VRS-CYI JF332J VRD-RA2BElOl J VRS-CYI JF272J VRS-CYI JF331 J VRS-CYI JFI 82J

VRS-CYI JF822J

VRS-CYI JF681 J

VRS-CYI JF822J VRS-CYI JFI 04J VRS-CYI JFI 02J VRS-CYI JF681 J VRS-CYI JF471 J VRS-CYI JF561 J VRS-CYI JF272J VRS-CYI JFI 03J VRD-RA2BElO2J VRS-CYI JF75OJ

VRS-CYIJFIOIJ

VRS-CYI JFI 53J

V IM 1/16W

(XA-720)

V IOOk lll6W

(XA-720)

V 18k lll6W

(XA-720)

V IOk lll6W

(XA-720)

V IOOk lll6W

(XA-720)

V 2.2k lll6W

(XA-720)

V 6.8k lll6W

(XA-720)

V 6.8k lll6W

(XA-720)

V 39k lll6W

(XA-720)

V 47k 1/16W

(XA-720)

V 47k lll6W

(XA-720)

V 3.9k 1/16W

(XA-720)

V 3.3k lll6W

(XA-720)

V 33k lll6W

(XA-720)

V IOk lll6W

(XA-720)

V 22k lll6W

(XA-720) V 6.8k lll6W V 1.8k 1/16W V 3.3k lll6W V 100 ll8W V 2.7k lll6W V 330 lll6W V 1.8k lll6W V 8.2k 1/16W V 680 1/16W V 8.2k lll6W V IOOk 1/16W V lk lll6W V 680 lll6W V 470 lll6W V 560 1/16W V 2.7k lll6W V IOk lll6W V lk ll8W V 75 lll6W

(XA-720)

vo lll6W

(XA-720)

V 100 lll6W

(XA-710)

V 15k lll6W

Metal Oxide AA

Metal Oxide

Metal Oxide AA

Metal Oxide

Metal Oxide AA

Metal Oxide Metal Oxide Metal Oxide Carbon Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Carbon Metal Oxide

Metal Oxide AA

AA

AA AA AA AB

88

XA-705 XA-71 O,XA-720

Ref. No. Part No.

*

Description Code

DUNTK5470TEVJ (XA-705) DUNTK5470TEVK (XA-710) DUNTK5470TEVL (XA-720)

MAIN UNIT (Continued)

R233 R252 R253 R254 R255 R256 R301 R304 R351

R352

VRS-CYlJF153J VRD-RA2EE331 J

VRS-CYI JFI 01 J VRS-CYI JFI 01 J VRS-CYI JFOOOJ VRS-CYI JFI 83J VRS-CY 1 JF473J VRS-CY 1 JFOOOJ VRS-CYI JF473J

VRS-CYI JF473J AA

VRS-CYI JF272J AA

R353

R354 VRS-CYI JF471 J AA

R501

VRS-CYI JFI 02J

R502

VRS-CY 1 JF273J

R601

VRS-CYI JF822J VRS-CYI JF274J

R602

VRS-CYI JF221 J

R603

VRS-CYI JF473J

R604 R605 R606 R607 R608 R609

R611

R612

R615

R616

R617

R618 R619 R620 R621

VRS-CYI JFI 53J VRS-CY 1 JF273J VRS-CYI JF561 J VRS-CYI JF472J VRS-CYI JF333J

VRS-CYI JFI 83J

VRS-CYI JF153J

VRS-CY 1 JF393J

VRS-CYI JFI 23J

VRS-CY 1 JF683J

VRS-CYI JF393J

VRS-CYI JF123J

VRS-CY 1 JF222J AA

VRS-CYI JFI 03J

VRS-CYI JFI 034

VRS-CY 1 JF563J

VRS-CYI JF47OJ VRS-CYI JFI 53J VRD-RA2EE4R7J

V 15k l/l 6W Metal Oxide V 330 1/4W Carbon V 100 l/l 6W Metal Oxide V 100 l/l 6W Metal Oxide v 0 V 18k l/l 6W Metal Oxide V 47k l/l 6W Metal Oxide v 0 V 47k l/l 6W Metal Oxide

V 47k l/l 6W Metal Oxide

V 2.7k l/l 6W Metal Oxide

V 470 l/l 6W Metal Oxide

V 1 k l/l 6W Metal Oxide V 27k l/l 6W Metal Oxide V 8.2k l/l 6W Metal Oxide V 270k l/l 6W Metal Oxide V 220 l/l 6W Metal Oxide V 47k l/l 6W Metal Oxide V 15k l/l 6W Metal Oxide V 27k l/l 6W Metal Oxide V 560 l/l 6W Metal Oxide V 4.7k l/l 6W Metal Oxide

V 33k l/l 6W Metal Oxide

V 18k l/l 6W Metal Oxide

V 15k l/l 6W Metal Oxide

V 39k l/l 6W Metal Oxide

V 12k l/l 6W Metal Oxide

V 68k l/l 6W Metal Oxide

V 39k l/l 6W Metal Oxide

V 12k l/l 6W Metal Oxide

V 2.2k l/l 6W Metal Oxide

V 1 Ok l/l 6W Metal Oxide

V 56k l/l 6W Metal Oxide V 47 l/l 6W Metal Oxide V 15k 1/16W MetalOxide V 4.7 1/4W Carbon

l/l 6W Metal Oxide

(XA-720)

(XA-705/710)

(XA-720)

(XA-705/7 IO)

(XA-705/710)

(XA-720)

(XA-710)

(XA-705/710)

(XA-720)

AA AA AA AA AA AA AA AA AA

AA AA AA AA AA AA AA AA AA AA AA

AA

AA AA AA AA

Ref. No. Part No. Description Code

R622 R623 R624 R625 R626

R627 VRS-CYI JFOOOJ

R628 VRS-CYI JFOOOJ

R628 VRS-CYI JF331 J

R629 VRD-RA2BE331 J

R651 VRS-CYI JF273J

R652

R653 VRS-CY I JF473J

R654

R655

R657

R658 VRS-CYI JF682J

VRS-CYI JFI 02J VRD-RA2BE393J VRD-RA2BE224J

VRS-CY 1 JFOOOJ VRS-CYI JFOOOJ

VRS-CYI JF472J

VRS-CY 1 JF822J

VRS-CY 1 JF473J

VRS-CYI JF822J R656

VRS-CYI JF821 J

R661

R662

R663 VRD-RA2BE473J

R664 VRS-CY 1 JF822J

R665

R666

R667 VRS-CYI JF821 J

R668 VRS-CYI JF682J

R671

VRD-RA2BE273J

VRS-CYI JF472J

VRD-RA2BE473J

VRS-CYI JF822J

VRS-CYI JF123J

R672

R675

R676 VRS-CYI JFOOOJ

R677

R701

VRS-CYI JF472J

VRS-CYlJF103J

VRS-CYI JFOOOJ

VRS-CYlJF103J

V 1 k l/l 6W Metal Oxide V 39k 1/8W Carbon V 220k 1/8W Carbon v 0 l/l 6W Metal Oxide vo l/l 6W Metal Oxide

(XA-705/710)

v 0 l/l 6W Metal Oxide

(XA-705/710)

v 0 l/l 6W Metal Oxide

(XA-705/710)

V 330 l/l 6W Metal Oxide

(XA-720)

V 330 ll8W

(XA-720)

V 27k l/l 6W Metal Oxide

(XA-720)

V 4.7k l/l 6W Metal Oxide

(XA-720)

V 47k l/l 6W Metal Oxide

(XA-720)

V 8.2k l/l 6W Metal Oxide

(XA-720)

V 47k l/l 6W Metal Oxide

(XA-720)

V 8.2k l/l 6W Metal Oxide

(XA-720)

V 820 l/l 6W Metal Oxide

(XA-720)

V 6.8k l/l 6W Metal Oxide

(XA-720)

V 27k 1/8W

(XA-720)

V 4.7k l/l 6W Metal Oxide

(XA-720)

V 47k 1/8W Carbon

(XA-720)

V 8.2k l/l 6W Metal Oxide

(XA-720)

V 47k 1/8W Carbon

(XA-720)

V 8.2k l/l 6W Metal Oxide

(XA-720)

V 820 l/l 6W Metal Oxide

(XA-720)

V 6.8k l/l 6W Metal Oxide

(XA-720)

V 12k l/l 6W Metal Oxide

(XA-720)

V 4.7k l/l 6W Metal Oxide

(XA-720)

V 1 Ok l/l 6W Metal Oxide

(XA-720)

vo

(XA-720)

vo

(XA-720)

V 1 Ok l/l 6W Metal Oxide AA

Carbon AA

Carbon

l/l 6W Metal Oxide

AA AA AA

AA AA

AA

89

j

EZ,&

I

Ref. No. Part No.

* Description Code

DUNTK5470TEVJ (XA-705)

DUNTK5470TEVK (XA-710)

. DUNTK547OTEVL (XA-720)

MAIN UNIT (Continued)

R703 VRD-RA2BElO2J V lk 1/8W Carbon R704 VRD-RA2BElO2J V lk ll8W Carbon

R705 VRD-RA2BElO2J V 1 k 1/8W Carbon R706 VRS-CYI JFI 53J

R707 VRS-CYlJFl53J

R708 VRS-CY 1 JF471 J R709 VRS-CYI JFI 02J

R710 VRS-CYI JF224J R711 VRS-CYI JF472J R712 VRS-CYI JF473J

R713 VRS-CYI JF564J R714 VRD-RA2BE332J V 3.3k 1/8W R715 VRD-RA2BElO2J R716 VRS-CYI JFI 02J R717 VRD-RA2BE681 J R718 VRS-CYI JFI 82J R719 VRD-RA2BElO2J R720 VRD-RA2BElO3J

R720 VRD-RA2BE822J

R721 VRD-RA2BE822J

R722 VRD-RA2BElO2J R726 VRD-RA2BElO3J R727 VRD-RA2EEl51 J v 150 ll4W R728 VRS-CYI JFI 02J R729 VRD-RA2BE683J R730 VRS-CYI JF223J R731 VRS-CYlJFl03J R732 VRS-CYI JFI 53J R734 VRS-CY 1 JF223J R735 VRS-CY 1 JF393J R736 VRS-CYI JFl83J R737 VRS-CYI JFI 02J R738 VRD-RA2BElO4J

R739 VRD-RA2BE271 J R740 VRS-CYI JFI 04J R741 VRD-RA2BE271 J R742 VRS-CYI JFl54J R743 VRD-RA2BElO2J R744 VRS-CYI JFI 54J R745 VRD-RA2BElO2J R746 VRS-CYIJFOOOJ V 0 R747 VRS-CYI JFI 03J R748 VRS-CYI JFlO3J R749 VRD-RA2EE680J R751 VRS-CYI JFI 23J

R752 VRD-RA2BEl23J R753 VRS-CYI JFI 02J R754 VRD-RA2BElO2J

V 15k l/l 6W Metal Oxide AA V 15k l/l 6W Metal Oxide AA V 470 l/l 6W Metal Oxide AA V 1 k l/l 6W Metal Oxide AA

(XA-720) V 220k l/l 6W Metal Oxide AA V 4.7k l/l 6W Metal Oxide AA V 47k l/l 6W Metal Oxide AA V 560k l/l 6W Metal Oxide AA

Carbon V lk 1/8W Carbon AA V 1 k l/l 6W Metal Oxide AA v 680 1/8W Carbon V 1.8k 1/16W Metal Oxide AA V 1 k 1/8W Carbon AA V IOk 1/8W Carbon

(XA-720)

V 8.2k 1/8W Carbon

(XA-705/710)

V 8.2k ll8W Carbon

(XA-7050’10)

V lk 1/8W Carbon

V IOk ll8W Carbon

Carbon V 1 k l/l 6W Metal Oxide AA V 68k ll8W V 22k l/l 6W Metal Oxide AA V 1 Ok l/l 6W Metal Oxide AA V 15k l/l 6W Metal Oxide AA V 22k 1/16W Metal Oxide AA V 39k l/l 6W Metal Oxide AA V 18k l/l 6W Metal Oxide AA V 1 k l/l 6W Metal Oxide AA V 1 OOk 1/8W Carbon V 270 1/8W Carbon V 1 OOk l/l 6W Metal Oxide AA V 270 1/8W Carbon V 150k l/l 6W Metal Oxide AA

V 1 k 1/8W Carbon V 150k l/l 6W Metal Oxide AA V 1 k 1/8W Carbon

l/l 6W Metal Oxide AA V 1 Ok l/l 6W Metal Oxide AA V IOk 1/16W Metal Oxide AA V 68 1/4W Carbon V 12k l/l 6W Metal Oxide AA V 12k 1/8W Carbon V 1 k l/l 6W Metal Oxide AA V 1 k 1/8W Carbon AA

Carbon AA

AA AA AA

AA

AA AA

AA

AA AA

AA

Ref. No. Part No.

R760 VRS-CYI JFI ROJ R761 VRS-CYI JFI ROJ R770 VRS-CY 1 JF332J R773 VRS-CYI JF272J

R801 R802 R809 R810 R811 R812 R813 R814 R815 R821 R822 R823 R824 R825 R826

R851

R852

R951 R952 R954

R955 R957 R958

VRD-RA2BElO2J

VRD-RA2BElO3J VRS-CY 1 JF333J VRS-CYI JF333J VRS-CYI JFOOOJ VRS-CYI JFI 03J VRS-CYI JFI 02J VRD-RA2BElO2J VRS-CYI JF822J VRS-CYlJFl22J VRS-CYI JFI 52J VRS-CYI JF822J VRS-CYI JFI 22J VRS-CYI JFI 52J VRS-CYI JF222J VRS-CY 1 JF332J VRS-CYI JFI 53J VRD-RM2HDl OOJ

VRD-RA2BE331 J

VRC-UB2HG275K VRD-RM2HDl54J VRSVV3DB333J VRD-RM2HD390J VRD-RA2BE562J VRD-RM2HD390J VRS-CY 1 JFI OOJ VRS-CYI JF221 J VRS-CYI JF221 J VRS-CY 1 JF472J

VRS-CYI JFlO3J VRS-CYI JFI 83J

VRS-CY 1 JF392J

VRS-CYI JF682J VRS-CYI JF221 J VRS-CY 1 JFOOOJ VRD-RM2HDl52J VRS-CYI JF223J VRS-CYI JF561 J VRS-CYI JFI 03J VRD-RA2BE472J VRD-RA2EEl82J

R781 R782 VRD-RA2BElO2J R783 VRD-RA2BElO2J

R784 VRD-RA2BElO2J R790 VRS-CYI JFIOI J R791 VRS-CYI JFIOI J R792 VRD-RA2BElO2J

R793 VRD-RA2BElO2J

R795

A R902

A R903 A R904 A R905 A R906 A R907 A R911 A R914 A R915 A R916 A R917 n R918 A R919 A R920 A R922

A R925

* Description

v 1 l/l 6W Metal Oxide

v 1 l/l 6W Metal Oxide V 3.3k l/l 6W Metal Oxide V 2.7k 1/16W Metal Oxide

V 1 k 1/8W Carbon V lk 1/8W Carbon V 1 k 1/8W Carbon

(XA-720) V lk 1/8W Carbon V 100 l/l 6W Metal Oxide V 100 l/l 6W Metal Oxide

lll6W

Carbon

Metal Oxide Metal Oxide Metal Oxide

Carbon

Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Carbon

)

Carbon

>

Solid Carbon

Metal Oxide Carbon

Carbon

Carbon Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Carbon Metal Oxide Metal Oxide Metal Oxide Carbon Carbon

V lk 1/8W

(XA-720) V 1 k 1/8W Carbon

(XA-705/710) V IOk 1/8W Carbon

V 33k lll6W

vo 1/16W V IOk lll6W Metal Oxide V lk 1/16W Metal Oxide V lk 1/8W V 8.2k 1/16W Metal Oxide V 1.2k lfl6W Metal Oxide V 1.5k lll6W V 8.2k lll6W V 1.2k lll6W V 1.5k lll6W V 2.2k lll6W V 3.3k 1/16W V 15k 1/16W V IO ll2W

(XA-71 O/720

V 330 ll8W

(XA-71 O/720 V 2.7M 1/2W V 150k ll2W

V 33k 2W

v 39 1/2w

V 5.6k ll8W v 39 ll2W V 10 1/16W V 220 lll6W V 220 lll6W V 4.7k lfl6W V IOk lll6W V 18k 1/16W V 3.9k 1/16W V 6.8k lll6W V 220 lll6W vo V 1.5k ll2W V 22k lll6W V 560 lll6W V IOk lll6W V 4.7k ll8W V 1.8k 1/4W

AA AA AA

AA AA AA AA

AA AA AA AA AA AA AA AA AA AA AA AA AA

AA

AF AA AA AA AA AA AA AA AA AA AA AA AA AA AA

AA

AA AA AA AA AA

90

/

XA-705 XA-71 O,XA-720

Ref. No.

Part No.

DUNTK5470TEVJ (XA-705)

DUNTK5470TEVK (XA-710) DUNTK5470TEVL (XA-720)

MAIN UNIT (Continued)

R959 VRD-RA2BE103J R960 VRN-VV3DB3R3J R961 VRD-RA2EE182J R962 VRS-CYlJF103J R973 VRS-CYI JFI 03J R974 VRS-CYI JF472J R991 VRS-CYI JF102J R992 VRS-CYI JF103J R993

SIOI

s701 S806 S807 S807 S809 S809 S810 S811 S813

A F901

FB201 FB202 FB203 FB701 FB702 FB703 FB704 FB705

FB706 A FB901 A FB902 A FH901 A FH902

J201 J201 J202

PI61

PI64

P168

P201

P202

P203

P204

P205

P206

P704

P710

VRS-CY 1 JF222J

QSW-S0004AJZZ V RF Converter

QSW-F0042AJZZ V Ret Tip

QSW-K0002AJZZ V CH (+) QSW-K0002AJZZ V MENU (XA-705) QSW-K0002AJZZ V SET (XA-710/720) QSW-K0002AJZZ V SET (XA-705) QSW-K0002AJZZ V MENU (XA-71 O/720) QSW-K0002AJZZ V CH (-) QSW-K0002AJZZ V EJECT QSW-K0002AJZZ V POWER

MISCELLANEOUS PARTS

QFS-B1625CEZZ V Fuse 125Vl1.6A RBLN-0036CEZZ V Ferrite Bead RBLN-0036CEZZ V Ferrite Bead RBLN-0036CEZZ V Ferrite Bead RBLN-0036CEZZ V Ferrite Bead RBLN-0036CEZZ V Ferrite Bead RBLN-0036CEZZ RBLN-0036CEZZ RBLN-0036CEZZ RBLN-0036CEZZ V Ferrite Bead RBLN-0036CEZZ RBLN-0036CEZZ V Ferrite Bead QFSHDI 013CEZZ V Fuse Holder QFSHD1014CEZZ V Fuse Holder QJAKFOOI 3AJZZ QJAKHOOI 2AJZZ QJAKG0005AJZZ QPLGN0361 CEZZ QPLGN0261 CEZZ QPLGN0261 CEZZ QPLGN0447REZZ QPLGN0247REZZ QPLGZ0660GEZZ QPLGN0247REZZ QPLGN0247REZZ QPLGN0347REZZ QPLGZ0883GEZZ QPLGN0447REZZ

*

V IOk 1/8W v 3.3 2w V 1.8k 1/4W V 10k 1/16W V 10k 1/16W V 4.7k 1/16W V Ik 1/16W V 10k 1/16W V 2.2k ll16W

Description Code

SWITCHES

V Ferrite Bead V Ferrite Bead V Ferrite Bead

V Ferrite Bead

V AV Jack (XA-705/710) V AV Jack (XA-720) V AV Jack (XA-720) V Lug, Test Point (XA-720) V Lug, Test Point (XA-720) V Lug, Test Point (XA-720) V Lug, Test Point V Plug, 2-pin V Plug, 6-pin (XA-710) V Plug, 2-pin (XA-710) V Plug, 2-pin V Plug, 3-pin (XA-710) V Plug, 8-pin (AC) V Plug, 5-pin (AX)

Carbon Metal Film Carbon Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide Metal Oxide

Ref. No.

P801 P902 QPLGZ0560GEZZ P903 QPLGZ0360GEZZ

SC301 QSOCNOGII RENI

AA AB AA AA AA AA AA AA AA

AF AG AD AD AD AD AD AD AD AD

AC AB AB AB AB AB AB AB AB AB AB AB AC AC AG AK AN AB AB AB AA AA AB AA AA AA AD AA

SC301 QSOCNOSII RENI SC601 QSOCN0604RENl SC602 QSOCZ0293GEZZ SC701 QSOCN0704RENl SC702 QSOCZ0292GEZZ SC705 QSOCZ0625CEZZ RMC801 RRMCU0056GEZZ

A ACCSOI QACCD5002GEZZ

R881 R882 R883

S881 S882 S883 S884 S885

P881

DUNTK5472TEVO (XA-71 O/720)

CABLE BOX CONTROL UNIT

D851 D852 RH-PX0270GEZZ V LED

SC871 QSOCZ0360GEZZ V Socket, 3-pin

Part No. *

QPLGN0261 CEZZ

LANGQ9061 AJFW LHLDZ1962AJOO PSLDM4540AJFW QCNW-0307AJZZ QCNW-0311 AJZZ XBPSD30P05JSO

V Lug, Test Point AB V Plug, 5-pin (XA-710) AD V Plug, 3-pin (AB) AB

V Socket, 6-pin (AH) AC

V Socket, g-pin (AH) (XA-720) AD V Socket, 6-pin (AA) AB V Socket, 2-pin (AE) V Socket, 7-pin (AD) AB V Socket, 2-pin (AL) AC V Socket, 6-pin (AO) AC V Remote Receiver V AC Cord AT V Fixing Metal V Holder V Shield AE V Connecting Cord AD V Connecting Cord AE V Screw AA

Description

(XA-71 O/720)

(XA-705/710)

- End of MAIN UNIT -

Code

AC

AQ

AC AD

DUNTK5471TEVO

OPERATION UNIT

RESISTORS

VRS-CY 1 JF222J V 2.2k l/l 6W Metal Oxide AA VRS-CYI JF332J V 3.3k Ill 6W Metal Oxide AA VRS-CYI JF472J V 4.7k 1/16W Metal Oxide AA

SWITCHES

QSW-Zoo01 AJZZ V Shuttle Switch QSW-K0002AJZZ V PLAY QSW-K0002AJZZ V STOP QSW-K0002AJZZ V REC QSW-K0002AJZZ V PAUSE

MISCELLANEOUS PARTS

QPLGZ0626CEZZ V Plug, 6-pin (OA) AF

- End of OPERATION UNIT -

DIODES

RH-PX0270GEZZ V LED

MISCELLANEOUS PARTS

- End of CABLE BOX CONTROL UNIT -

AQ

AD AD AD AD

AC AC

AC

91

Ref. No.

Part No.

*

Description

Code

Ref. No.

Part No.

*

Description Code

DUNTK5571TEVO

VIDEO JACK UNIT

RESISTORS

R2201 VRD-RA2BE75OJ R2202 VRD-RA2BElOl J R2203 VRD-RA2BE750J

V 75 1/8W Carbon AA V 100 1/8W Carbon AB V 75 1/8W Carbon

AA

MISCELLANEOUS PARTS

J2201 QJAKE0220GEZZ V Jack, Video In (BNC) AL J2202 QJAKE0220GEZZ V Jack, Video Out (BNC) AL P2201 QPLGN0447REZZ V Plug, 4-pin AA

- End of VIDEO JACK UNIT -

DUNTK5572TEVO (XA-705/720) DUNTK5572TEVl (XA-710)

TERMINAL UNIT

TRANSISTORS

Q8801 Q8802

C8801 C8802

R2301

R2302

R8801

S8801

J8801 J8802 P8801

P8801 SC2301 QSOCZ0881 GEZZ V Socket (XA-710)

VSDTAI 24ES/-1 VSDTCI 44ES/-1 V DTCI 44ES

V DTAI 24ES

CAPACITORS

VCKYD41 CYI 03N VCKYD41HF104Z V 0.1 50V Ceramic

V 0.01

16V Ceramic

RESISTORS

VRD-RA2BE750J V 75 ll8W Carbon

(XA-710)

VRD-RA2BElOl J V 100 1/8W Carbon

(XA-710)

VRD-RA2BE102J V 1 k 1/8W Carbon

SWITCH

QSW-S0242GEZZ V REC TAB OVERRIDE

MISCELLANEOUS PARTS

QJAKJ0007TAZZ

QPLGN0447REZZ V Plug, 4-pin

QPLGN1247REZZ V Plug,l2-pin (XA-710)

LHLDW301 OGEZZ V Holder (XA-710)

LHLDZI 926AJZZ V Holder (XA-710) QCNW-0325AJZZ V Connecting Cord XEPSD26PlOOOO V Screw (XA-710)

V Jack, Remote Pause (IN) V Jack, Remote Pause (OUT) AC

(XA-705/XA-720)

AB AB

AA AA

AA

AB

AA

AD

AC

AA

AB AS AA AE AE AB

IC6201

Q2401 Q2402

C2401 C2402 C2403

C2404

C2405 C2406

C6201

C6203 C6204 C6206 C6207 C6208 C6209

R2401

R2402

R2403

R2404

R2406

R2407

R2408

R2409

R2410

R6201

R6202 R6203 R6204 R6206 R6207 R6208 R6209 R6211

P2401 P2402 SC2401 SC2402

DUNTK5573TEVO (XA-710)

AV AMP. UNIT

INTEGRATED CIRCUIT

VHiBA15218N-1

TRANSISTORS

VS2SA933SQRl E V 2SA933SQR VS2SA933SQRl E V 2SA933SQR

VCEA9MOJW476M V 47 6.3V Electrolytic VCEAGAOJW337M V 330 6.3V Electrolytic VCEA9MOJW476M V 47 6.3V Electrolytic VCEAGAOJW337M V 330 6.3V Electrolytic VCEASMlCW476M V 47 16V Electrolytic VCKYD41HF104Z V 0.1 50V Ceramic VCEA9MlCW106M V 10 16V Electrolytic VCEA9MOJW226M V 22 6.3V Electrolytic VCEASMlCW106M V 10 16V Electrolytic VCEASMOJW226M V 22 6.3V Electrolytic VCEASMlCW476M V 47 16V Electrolytic VCEASAlCW106M V 10 16V Electrolytic VCEASAlCW106M V 10 16V Electrolytic

VRD-RA2BElOl J VRD-RA2BE183J VRD-RA2BE103J V IOk 1/8W Carbon VRD-RM2HD331J V 330 1/2W Carbon VRD-RA2BElOl J V 100 1/8W Carbon VRD-RA2BE103J VRD-RA2BE183J VRD-RM2HD331J V 330 1/2W Carbon VRD-RA2BE750J VRD-RA2BE104J VRD-RA2BE104J VRD-RA2BE153J

VRD-RA2BE682J VRD-RA2BE104J V IOOk 1/8W VRD-RA2BE104J V IOOk 1/8W

VRD-RA2BE153J VRD-RA2BE682J VRD-RA2BE561 J

MISCELLANEOUS PARTS

QPLGN0248REZZ V Plug, 2-pin QPLGNI 048REZZ V Plug, 1 O-pin QSOCZ0560GEZZ V Socket, 5-pin QSOCZ0660GEZZ V Socket, 6-pin

V BA15218N

CAPACITORS

RESISTORS

V 100 1/8W Carbon V 18k 1/8W Carbon

V 1 Ok 1/8W Carbon V 18k 1/8W Carbon

V 75 1/8W Carbon V 1 OOk 1/8W Carbon V IOOk 1/8W Carbon V 15k 1/8W Carbon V 6.8k 1/8W Carbon

Carbon

Carbon V 15k 1/8W Carbon V 6.8k 1/8W Carbon V 560 1/8W Carbon

AD

AB AB

AB

AB AB AB

AA

AB

AB AB AB

AB AB

AB AA AA AA AB AA AA AA AA AA AA AA AA AA AA AA AA AA

AA

AB

AD AB

- End of TERMINAL UNIT -

- End of AV AMP. UNIT -

XA-705 XA-71 O,XA-720

Ref. No.

Part No.

MECHANISM CHASSIS

1

2 LBOSZI 007AJZZ 4 5 6 7 8 9 MLEVFOSI 8AJZZ

IO

11 12 15 16 17 18

19 20 21 MLEVP0292AJZZ 22 MLEVP0290AJZZ 23 MLEVP0293AJZZ 24 MLEVP0294AJZZ 25 MLEVP0295AJZZ 26 CLEVP-0287AJZZ

27 29 MSPRDOI 75AJFJ 30 MSPRT0402AJFJ

31

32 MSPRC0213AJFJ 33 MSPRT0416AJFJ 34

35

36

37 NGERH1295AJOO

38 NGERHI 294AJZZ

39 NGERHI 270AJZZ 40 NGERH1271AJZZ 41 NGERH1272AJZZ 43 44

45 NGERW1066AJZZ

46 NiDR-0018AJZZ

47

48 NPLYVOI 63AJZZ

49 NROLPOI 31 GEZZ J

50 NSFTP0032AJZZ

51 MSPRC0217AJFJ

52 PREFLIOIIAJZZ

53 QCNW-0308AJZZ V

55 QCNW-0272AJZZ

LBNDKIOIIAJZZ

LBOSZI 006AJZZ LCHSMO166AJZZ LHLDZ201 GAJZZ LPOLM0063GEZZ LPOLM0064GEZZ

MLEVFOSI 9AJZZ

MLEVF0499AJZZ MLEVF0500GEZZ J MLEVF0496AJZZ LANGF9620AJFW MLEVP0271 AJZZ MLEVP0272AJZZ MLEVP0301 AJZZ MLEVP0275AJZZ

MSLiPOOl OAJZZ

MSPRT0403AJFJ V

NBLTK0067AJOO NDAiV1078AJOO NGERH1293AJZZ

NGERH1299AJZZ NGERWI 070AJZZ

NPLYVOI 62AJZZ

* Description

Tension Band Ass’y Tension Arm Doss Cassette Stay L Main Chassis Ass’y Loading Motor Block Supply Pole Base Ass’y Take-Up Pole Base Ass’y Take-Up Loading Arm Ass’y

V

Supply Loading Arm Ass’y

V

Pinch Drive Lever Ass’y Pinch Roller Lever Ass’y

V

Tension Arm Ass’y

V

A/C Head Plate

V

Sifter Drive Lever

V

Pinch Double Action Lever

V

Reverse Guide Lever Ass’y

V

Reverse Drive Lever

V

Slow Brake Lever

V

Open Lever

V

Clutch Lever

V

Sup Main Brake Ass’y

V

Take-Up Main Brake Ass’y

V

Auto Head Cleaner Ass’y (XA-71 O/720)

V

Shifter

V

Reverse Guide Spring 2

V

Loading Double Action

Spring

Pinch Double Action

Spring

V

Earth Spring

V

Tension Spring

V

Reel Belt

V

Reel Disk

V

Loading Connect Gear

V

Master Cam

V

Casecon Drive Gear

V

Take-Up Loading Gear

V

Supply Loading Gear

V

Pinch Drive Cam

V

Reel Relay Gear

V

Worm Gear

V

Worm Wheel Gear

V

Idler Wheel Ass’y

V

Motor Pulley

V

Limitter Pulley Ass’y Guide Roller

V

Tension Pole Adjuster

V

Guide Roller Spring

V

Light Guide FFC for Drum Motor

V

FFC for A/C Head

Code

AH AD AD

BA AG AM AM

AF

AG AW

AK AG

AE

AD

AL AD AE AD AE AF AF AG

AH AE AE

AD

AC AD AE AE AD AE AD AF AD AE AE AD AD AK AD

AM

AL AB AC AE AG

AF

Ref. No.

56 57 58 59 60 61 62 63

63

65 66

67 68 QPWBF5468AJZZ 69 QPLGZ0292GEZZ 70 MSPRCO223AJFJ 71

Part No.

QPWBF5469AJZZ QSOCN0605RENl RHEDT0036AJZZ RHEDU0088GEZZ

RMOTM1078GEZZ RMOTN2055GEZZ RMOTP1135GEZZ

DDRMW0029TEXl

DDRMW0030TEXl

QBRSK0041 GEZZ XBPSD26P05JOO

PGiDC0056GEFW

MSPRC0224AJFJ

*

V AIC Head PWB V Socket, 6 pin V Full Erase Head

J A/C Head Ass’y J Loading Motor J Capstan Motor J Drum Drive Motor

V

V Upper and Lower Drum Ass’y

V Drum Earth Brush V Drum Drive Motor

J Drum Base

V PWB (LDG Motor)

J Socket (LDG Motor) V Azimuth Spring V Height Adjusting Spring

- End of MECHANISM CHASSIS -

Description

Upper and Lower Drum Ass’y (XA-705/710)

(XA-720)

Mounting Screw (SW2.6P+5S)

Code

AE AB

AM

AV AK BA AX BU

BU

AD

AA

AL AE

AE AC AC

.93

XA-705 XA-71 O,XA-720

Ref. No. Part No. *

Description

SCREW, NUTS AND WASHERS

201 202 203

207

208 XRESJ30-06000 V 209 XWHJZ31-05052 V

210 211 212 213 XWHJZ31-07052 V 214 PSPAP0009AJZZ V

216 LX-WZI 041 GE00 J 218 XBPSD30P08JOO V

219 LX-WZI 098GEOO J

220 LX-BZ3096GEFD J 221 XBPSD26P06000 V

222 LX-BZ3197GEFD J 223 XWHJZ31-08052 V

XBPSD26P08000 V LX-HZ3082GEZZ J XHPSD26P06000 V

XHPSD30P08WSO V

XWHJZ31-03052 V XWHJZ31-04052 V XWHJZ31-06052 V

Screw 2.6P+8S A/C Head AA AIC Head Screw Screw, C2.6P+6S

Capstan Motor)

(For Screw, C3.OP+6S AA

Base)

Drum

(For

E-Ring, E-3 AA Washer, W3.1-5.2-0.4 AC Washer, W3.1-5.2-0.3 AC

Washer, W3. I-5.2-0.4 AC

Washer, W3. I-5.2-0.6

Washer, W3.1-5.2-0.7

Reverse Guide

Adjusting Nut

CW 2.5-6-0.5 CAM AA

Drum Base Mounting AA

Screw (SW 3P+8S)

CW 2.6-4.7-l 0.5 RED AB

Tilt Adjusting Screw AA

Azimuth Adjusting Screw AA

2.6+6S

Screw (A/C Head) AD

Washer, W3.1-5.2-0.8 AC

Code

AD AA

AC AC AB

Ref. No.

Part No.

*

Description

CASSETTE HOUSING CONTROL

300

301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317

CHLDX3081 TEV2 V

LANGF9592AJFW V LHLDX1028AJOO V LHLDXI LHLDXI 030AJZZ V LHLDX1031 AJZZ V MLEVF0469AJFW V MLEVP0281 AJOO V MSLiF0076AJFW V MSPRDOI MSPRDOI 66AJFJ V MSPRPOI 75AJFJ V MSPRT0381AJFJ V NGERH1278AJZZ V NGERHI 309AJZZ V NGERR1008AJOO V NGERR3005AJFW V NSFTDO041 AJFD V

032AJOO

51AJFJ V

Cassette

Ass’y

Upper Plate Frame (L)

V

Frame (R) Holder (L) Holder (R) Proof Door Open Lever Slider Proof Lever (R) Spring Drive Gear (R) Spring Cassette Double Action Spring Drive Gear L Drive Gear R Double Action Rack Gear Drive Angle Gear Main Shaft

Housing Control

Lever (R)

Spring

Code

AX

AL AH AH AE AE AE AD AK AB AE AE AC AE AE AE AG AH

- End of SCREW, NUTS AND WASHERS -

- End of CASSETTE HOUSING CONTROL -

94

XA-705 XA-71 O,XA-720

Ref. No. Part No.

MECHANICAL PARTS FRONT PANEL PARTS

600 602 GCABB1186AJKB 603 PSLDM4554AJFW 604 XHPSD26POGWSO 605 XHPSD30POGWSO 607 XEPSD30P14XSO 608 GCOVA2076AJKZ 609 XEBSD30P12000 610 LX-HZ3087GEFN 612 613 614 614 TLABM3784AJZZ

614 TLABM3785AJZZ 615 XJPSD30Pl OWSO 616 GCOVA2097AJKZ

616 GCOVA2098AJKZ

617

GCABAI 092AJKB

LHLDZI 962AJOO PGUMS0026AJZZ

TLABM3783AJZZ

HiNDP2072AJZZ

HiNDP2071 AJZZ

* Description

V Top Cabinet V Main Frame V Drum Shield V Screw V Screw V Screw V Antenna Terminal Cover V Screw J Screw V Cover, Sensor LED V Foot Felt V Model Label (XA-705) V Made1 Label (XA-710) V Made1 Label (XA-720) V Screw V Terminal Cover

(XA-705/720)

V Terminal Cover

(XA-710)

V BNC Indication Plate

(XA-705/710)

V BNC Indication Plate

(XA-720)

Code Ref. No.

AQ AQ

AM

AA AA AB AG AA AB AD AB AE AH AF AA AH

AH

AK

501

501 CPNLC2423TEVO

501 CPNLC2424TEVO V

501-l Not Available 501-2 HBDGBI 008AJSA 501-3 501-3 501-3 HDECQI 894AJSA 501-4 HDECQI 757AJSB 501-4 HDECQI 774AJSB 501-4 HDECQ1790AJSB 501-5 JBTN-2844AJSC 501-5 JBTN-2849AJSB 501-5 JBTN-2881 AJSH 501-6 JBTN-2854AJSA 501-6 JBTN-2858AJSA 501-7 MSPRDOI 03AJFJ 501-8 501-10 502

502 LHLDZ2021 AJZZ 503 JBTN-2845AJSH 504 JKNBK1105AJSB 504 505 506

Part No.

CPNLC2422TEVO

HDECQI 891 AJSA HDECQI 861 AJSA

HDECQI 761 AJSA JBTN-2880AJSH LHLDZ201 SAJZZ

JKNBKI 106AJSB TLABZI 536AJZZ HDECQI 778AJSC

*

V

-

V V V V V V V V V V V V V V V V

Description Code

Front Panel Ass’y (XA-705) Front Panel Ass’y (XA-710) Front Panel Ass’y (XA-720)

Front Panel SHARP Badge Cassette Flap (XA-705) Cassette Flap (XA-710) Cassette Flap (XA-720) Window Dec. (XA-705) Window Dec. (XA-710) Window Dec. (XA-720) Button, REC (XA-705) Button, REC (XA-710) Button, REC (XA-720) SET Button (XA-710) SET Button (XA-720) Cassette Spring Flap DEC.(XA-710) POWER Button (XA-720) Button Holder (XA-705/710) Button Holder (XA-720) PLAY/STOP Button Dial (XA-705/710) Dial (XA-720) E-STAR Label Ring Dec. (XA-720)

AX

AE AH AN AH

AL

AL AK AC AD AG AD AD AB AD AF AE

AE AH AF

AG AG AM

- End of MECHANICAL PARTS -

- End of FRONT PANEL PARTS -

XA-705 XA-71 O,XA-720

Ref. No.

Part No.

ACCESSORIES

QCNW-0298AJZZ RRMCG0274AJSA RRMCG0275AJSA RRMCG0276AJSA 90A64EC2078A

TiNS-3250AJZZ

TiNS-3432AJZZ

TCADH0051 AJZZ

TCADH0049AJZZ

*

V

Description Code

75 ohm Coaxial Cable

Infrared R/C Unit (XA-705) Infrared R/C Unit (XA-710) Infrared R/C Unit (XA-720) Battery Cover, Infrared R/C Unit Operation Manual (XA-705) Operation Manual (XA-71 O/720)

Timer Setting Card

(XA-705)

Timer Setting Card

(XA-71 O/720)

AU

BA BA BD Al=

AL

AH

AC

- End of SUPPLIED ACCESSORIES -

PACKING PARTS

(NOT REPLACEMENT ITEM)

SPAKC3776AJZZ - Packing Case (XA-705) SPAKC3777AJZZ - Packing Case (XA-710) SPAKC3778AJZZ - Packing Case (XA-720) SPAKXI 012AJZZ - Buffer Material SSAKAOOOI AJZZ - Polyethylene Sack TLABK0005AJZZ - No. Card

- End of PACKING PARTS -

-

MECHANISM CHASSIS PARTS

H

-

6

-

F

-

XA-705 XA-71 O,XA-720

E

-

D

-

c

-

B

-

A

-

XA-705 XA-71 O,XA-720

CASSETTE HOUSING CONTROL PARTS

I

I I I I I

I

I I I I I

I

I I I I I I I I I I I I I I I

1

2

3

98

4

5

6

,NICAL PARTS

XA-705 XA-71 O,XA-720

1 2 3

99

4 5 6

I

XA-705 XA-71 O,XA-720

FRONT PANEL PARTS (XA-705)

1 2

PRECAUTION ON FRONT PANEL SET-UP

Cassette cover open lever

Before attaching the front panel in position, make sure that the cassette cover open lever is in its right

place (lower-most). If it is out of position, push it down with a finger.

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

3

’ ’ About 45”

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

100

502

b

4 5

Removing the cassette compartment cover.

Open the cassette compartment cover fully. Remove the center positioner. Slide the cover to the right. Slightly bend the cover. Draw out the left-side rod.

6

FRONT PANEL PARTS (XA-710)

_____-__--_________------~---~~~--~~~~~~~~~~~~~~~~-

I

501-8

/

“h

XA-705 XA-71 O,XA-720

-___-__---___--_____~~~~~~~----~~~~~~~~-

1 I 2 I 3 I 4 I

PRECAUTION ON FRONT PANEL SET-UP

Cassette cover open lever

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

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

Cassette cover

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

101

502

0

5

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

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

1

6

I

XA-705 XA-71 O,XA-720

FRONT PANEL PARTS (XA-720)

____________________~~~~-~~~~~~~~~-~~~~--~~~-

I I I I I I I I I I I I

I

I 1 I I

I

I I

j 501-2

19

505 j

I I

I

&

I

___--_-____----__---~~~--~~_~~~~~_

_-________________.

1 I 2

PRECAUTION ON FRONT PANEL SET-UP

Cassette cover open lever

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

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

3 I

” About 45”

Front bane1

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

102

4

5 I 6 I

Removing the cassette compartment cover.

Open the cassette compartment cover

fully.

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

XA-705 XA-71 O,XA-720

12. PACKING

n Setting position of

Accessories

TiNS-3250AJZZ TiNS-3432AJZZ

TCADH0051 AJZZ TCADH0049AJZZ QCNW-0298AJZZ

Operation Manual (XA-705) Operation Manual (XA-71 O/720) Timer Setting Card (XA-705) Timer Setting Card (XA-71 O/720) 75 ohm Coaxial Cable

OF THE SET

the Knobs

RF conv. CH. preset at “3” channel

I

i

Infrared R/C Unit

* SPAKXl 012AJZZ

Buffer Material

* SPAKC3776AJZZ (XA-705) * SPAKC3777AJZZ (XA-710) * SPAKC3778AJZZ (XA-720)

MARK * : Not Replacement Item

103

BK0005AJZZ

No. Card

XA-705 XA-71 O,XA-720

SHARP

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

TQ0492-S

Jul. 1998 Printed in Japan

NA. KG

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

SHARP XA-705, XA-710, XA-720 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

IMPORTANT SERVICE NOTES

PRECAUTIONS IN PART REPLACEMENT

1-2 SPECIFICATIONS

2. DISASSEMBLY AND REASSEMBLY

24 DISASSEMBLY OF MAJOR BLOCKS

2-2 DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY

1. When removing the mechanism from the main PWB.

2. Removing the mechanism and cassette controller.

2-3 Cares when reassembling

1. Electrical initial setting

2. Mechanical initial setting

INSTALLING THE MECHANISM ON PWB

PARTS WHICH NEED PARTICULAR CARE

4-l MECHANISM CONFIRMATION ADJUSTMENT JIG

MAINTENANCE CHECK ITEMS AND EXECUTION TIME

3. FUNCTION OF MAJOR MECHANICAL PARTS

CHECKING AND ADJUSTMENT OF TAKE-UP TORQUE IN FAST FORWARD MODE

CHECKINGTHE PINCH ROLLER PRESSURE

CHECKING AND ADJUSTMENT OF RECORD/PLAYBACK BACK TENSION

CHECKING THE BRAKE TORQUE

REPLACEMENT OF A/C (Audio/Control) HEAD

A/C HEAD HEIGHT ROUGH ADJUSTMENT

HEIGHTADJUSTMENTOFREVERSEGUIDE

REPLACEMENT OF DRUM D.D. MOTOR

REPLACING THE UPPER AND LOWER DRUM ASSEMBLY

ASSEMBLING OF PHASE MATCHING MECHANISM COMPONENTS

INSTALLING THE SHIFTER

INSTALLING THE MASTER CAM (AT REAR SIDE OF MECHANISM CHASSIS)

REPLACEMENT OF LOADING MOTOR

ASSEMBLY OF CASSETTE HOUSING

5. ELECTRICAL ADJUSTMENT

SERVO CIRCUIT ADJUSTMENT

5-3 CHECKING OF OFF TRACK

5-4 ADJUSTMENT OF SIF-INPUT LEVEL

5-5 ADJUSTMENT OF FILTER

5-6 ADJUSTMENT OF STEREO VCO

DIODES

PACKAGED CIRCUITS

FILTER

COILS

TRANSFORMERS

CONTROLS

CAPACITORS

RESISTORS

MISCELLANEOUS PARTS

SWITCHES

RESISTORS

SWITCHES

MISCELLANEOUS PARTS

DIODES

MISCELLANEOUS PARTS

RESISTORS

MISCELLANEOUS PARTS

TRANSISTORS

CAPACITORS

RESISTORS

SWITCH

MISCELLANEOUS PARTS

INTEGRATED CIRCUIT

TRANSISTORS

MISCELLANEOUS PARTS

CAPACITORS

RESISTORS

MECHANISM CHASSIS

SCREW, NUTS AND WASHERS

CASSETTE HOUSING CONTROL

MECHANICAL PARTS FRONT PANEL PARTS

MECHANISM CHASSIS PARTS

CASSETTE HOUSING CONTROL PARTS

FRONT PANEL PARTS (XA-705)

FRONT PANEL PARTS (XA-710)

FRONT PANEL PARTS (XA-720)