Sony PLM-A35E Service manual

PLM-A35E

SERVICE MANUAL

SPECIFICATIONS

Power supply

AC power adaptor: AC-PLM2

100-240 V AC, 50/60 Hz, 16 W Output voltage 9 V, 1.3 A

Battery pack: NP-F550 (not supplied)

Power consumption

1.8 W Approx.

Operating temperature

5°C to 35°C (41°F to 95°F)

Storage temperature

–10°C to 60°C (14°F to 140°F)

Dimensions

Display unit:

Approx. 173 × 53 × 56 mm (Approx. 6 (w/h/d, folded up)

Power supply box:

Approx. 53 × 39 × 104 mm (Approx. 2 (w/h/d) not including projecting parts and controls

Mass

Display unit: Approx. 100 g (4 oz) Power supply box: Approx. 90 g (3.2 oz)

Video signal

PAL colour, EIA standards

× 2

× 4

/4 inches)

/8 inches)

× 2

× 1

AEP Model

Audio/video input

Special minijack 1 Vp-p, 75 ohms, unbalanced, sync negative

S video input

4-pin mini DIN Y: 1 Vp-p, 75 ohms, unbalanced, sync negative C: 0.286 Vp-p, 75 ohms, unbalanced, sync negative

Supplied accessories

AC power adaptor AC-PLM2 (1) Mains lead (1) Audio/video cable (special miniplug y phono plug) (3 m) (1) Audio/video cable (special miniplug y stereo miniplug) (0.5 m) (1) Plug adaptors (phono jack y phono jack) (3) Nose piece (black) (1) Side piece pads (2) Operating instructions manual (1) Safety Instructions (1) Warranty (1)

Design and specifications are subject to change without notice.

9-928-144-11

GLASSTRON

TABLE OF CONTENTS

1. GENERAL

Glasstron is a Brand-new Concept in

Visual Display.............................................................. 1-1

About the Glasstron ..................................................... 1-1

Locating the Parts and Controls .................................. 1-1

Connecting the Glasstron............................................. 1-1

Wearing the Glasstron.................................................. 1-2

Using the Glasstron...................................................... 1-3

Setting the User Lock .................................................. 1-4

Using an Optional Battery Pack .................................. 1-4

Checking the Supplied Accessories............................. 1-5

Precautions ................................................................... 1-5

2. DISASSEMBLY ...................................................... 2-1

3. ELECTRICAL ADJUSTMENTS...................... 3-1

4. DIAGRAMS

4-1. Block Diagram – AUDIO/VIDEO Section – ............. 4-1

4-2. Block Diagram – LCD Section – ............................... 4-3

4-3. Block Diagram

– KEY CONTROL/POWER SUPPLY Section – ....... 4-5

4-4. Note for Printed Wiring Boards and

Schematic Diagrams .................................................... 4-7

4-5. Printed Wiring Board – YM-A01 Board – ................. 4-9

4-6. Schematic Diagram – YM-A01 Board (1/2) – ............ 4-11

4-7. Schematic Diagram – YM-A01 Board (2/2) – ............ 4-13

4-8. Schematic Diagram – RG-A01 Board –..................... 4-16

4-9. Printed Wiring Board – RG-A01 Board –.................. 4-19

4-10 Pr inted Wiring Board – DL-A01 Board – .................. 4-21

4-11. Schematic Diagram – DL-A01 Board – ..................... 4-23

4-12. Printed Wiring Board – HP-A01 Board – .................. 4-25

4-13. Schematic Diagram – HP-A01 Board – ...................... 4-27

4-14. Printed Wiring Board – DD-A02 Board – .................. 4-29

4-15. Schematic Diagram – DD-A02 Board – ..................... 4-31

4-16. IC Pin Function Description ........................................ 4-41

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

5. EXPLODED VIEWS............................................. 5-1

6. ELECTRICAL PARTS LIST ............................ 6-1

Confidential

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIA GRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.

– 2 –PLM-A35E (AEP)

Glasstron is a brand-new concept in visual display

Congratulations on your purchase of a Sony Glasstron Personal Viewer. The Glasstron, using current technology in small, lightweight visual displays, provides a television viewing experience similar to watching a 52-inch television from a distance of approximately 2 m (6.6 feet). (Viewing experience may differ according to individual perception.)

The Glasstron Personal Viewer creates an image through two separate liquid crystal displays, in close proximity to your eyes. To insure your safe use of the Glasstron, please become familiar with its basic operations, including proper fitting instructions, and be aware of any symptoms of eye fatigue or other discomfort you may experience.

WARNING

YOUR FAILURE TO FOLLOW THESE OPERATING INSTRUCTIONS MAY RESULT IN EYE FATIGUE, EYE IMPAIRMENT, OR OTHER EYE INJURY, PROPERTY DAMAGE OR DEATH.

WARNING

THIS PRODUCT SHOULD NOT BE USED BY CHILDREN AGE 15 OR YOUNGER. THE EYES OF CHILDREN ARE STILL DEVELOPING AND MAY BE ADVERSELY AFFECTED FROM USE OF THIS PRODUCT.

Note on the LCD (Liquid Crystal Display)

The LCD screen is made with highprecision technology. However, black points or bright points of light (red, blue, or green) may appear constantly on the LCD screen. This is not a malfunction. (Effective dots: more than 99.99%)

SECTION 1

GENERAL

About the Glasstron

Caution: The screen is always right in front of you.

The Glasstron is a face-mounted display. With this type of display, the screen is always in front of you, even if you move your head. Because of this feature, you can concentrate on the screen more easily compared with ordinary TVs, and you have a sense of being in the action.

• It is easy to adjust the Glasstron to your eyes. You can use the display unit even while wearing glasses.

• Every time you use the Glasstron, the adjustment screen appears to help you adjust the

display unit properly. You can also check whether the left and right screen positions are properly aligned or not.

• If you keep using the Glasstron continuously for three hours, a warning appears on the screen and the power will turn off automatically.

The Glasstron consists of the following items:

This section is extracted from instruction manual (3-868-186-31).

Getting Started

Display unit

The display unit is equipped with two small (left and right) LCDs.

Power supply box

You can use Sony’s recommended optional battery pack. You can also use the house current. To use the Glasstron, connect your video equipment to A/V IN on the power supply box.

Locating the parts and controls

Refer to the pages indicated in parentheses ( ) for details.

Display unit

Earphone (14)

Power supply box

Cover (20)

DC IN 9V connector (11)

A/V IN (audio/video) jack (8, 9)

S VIDEO IN jack (10)

POWER ON/OFF switch (15)

POWER lamp (15)

START/BATT CHECK button (16, 21)

Side piece (12)

Side piece adjuster (13)

Nose piece (12)

BATT/COVER RELEASE button (20)

BRIGHT (brightness) control (17)

VOL (volume) control (17)

User lock switch (19)

AVLS ON/OFF switch (18)

-GB

Getting Started

-GB

Features

• A powerful, big screen experience comparable to watching a 52-inch screen from approximately 2 m (6.6 feet) away.

• Handy portable folding display.

• The display unit weighs only 100 g (4 oz).

• Approximate continuous use for up to seven hours with Sony’s recommended battery pack, NP-F550.

Connecting the Glasstron

Connecting video equipment

Connect a VCR, laser disc player, DVD player, or camcorder to the power supply box as shown below. Two AV cables are supplied. Select the correct AV cable according to the shape of the connectors on the unit to be connected.

VCR, laser disc player, DVD player, camcorder, etc.

to audio/video outputs (phono jack)

Power supply box

A/V IN

to A/V IN (special minijack)

: Signal flow

About the audio/video input jack

The audio/video input jack of the Glasstron is a special minijack, and the signal connections are aligned as shown on the right. This alignment may differ depending on the equipment.

-GB

Video (yellow)

Audio/video cable (special miniplug y phono plug) (supplied)

Audio/video cable (special miniplug y stereo miniplug) (supplied)

Video (yellow)

Audio (black)

Audio L

Audio R (red)

Audio L (white)

to video output (minijack)

to audio output (stereo minijack)

Audio R

GND Video

DVD player, Video CD player

-GB

Confidential

1-1 PLM-A35E (AEP)

Connecting other equipment

The plug adaptor (phono jack y phono jack) is supplied. Use the plug adaptor according to the equipment you want to connect.

TV game, DVD player, camcorder, etc.

Plug adaptor (supplied)

A/V IN

Audio/video cable to A/V IN (special minijack)

(special miniplug y phono plug)

(supplied)

Getting Started

Connecting the Glasstron (continued)

If your video equipment has an S video jack

We recommend connecting the Glasstron to your video equipment using an S video cable and the audio/video cable to enjoy the highest quality pictures. In this case, you do not need to connect the video (yellow) plug. If you connect both the S video and video plugs, the S video signal is automatically selected.

Power supply box

VCR, laser disc player, DVD player, camcorder, etc.

S video cable (not supplied)

A/V IN

S VIDEO IN

to A/V IN

to S VIDEO IN

Audio/video cable (special miniplug y special miniplug) (not supplied)

to S video output

to audio/video output

Video (yellow)

Audio L (white)

: Signal flow

continued

Connecting the power source

Connect the AC power adaptor AC-PLM2 (supplied) to mains. Do not connect the power source until all other connections are complete.

to DC IN 9V

Display unit

Mains lead (supplied)

DC IN 9V

Power supply box

to mains

AC power adaptor AC-PLM2 (supplied)

-GB

Getting Started

Audio R (red)

Audio/video cable

: Signal flow

Notes

•Even if you use the supplied audio/video cable, the audio and video signals may not be carried to the Glasstron depending on the video source. In this case, contact your Sony dealer or local authorized Sony service facility.

-GB

(special miniplug y phono plug) (supplied)

•When you connect the Glasstron to the audio output jacks (phono jacks) of your video equipment, connect the Glasstron to both the right and left audio output jacks. If you connect the Glasstron to just one audio output jack, you will hear sound from only one of the stereo earphones.

to audio/video outputs

Wearing the Glasstron

WARNING

• Failure to properly fit the product (see “Proper Fit,” page 5 on the Safety Instructions) each time may result in eye fatigue, eye damage, or loss of visual functions and may result in accident or injury.

• This product should not be used by children age 15 or younger. The eyes of children are still developing and may be adversely affected by use of this product, and it may cause eye fatigue, eye damage, or loss of visual functions. In addition, this product may not be adjusted to fit a child’s head.

If you normally wear glasses while watching TV, you can use the Glasstron while wearing glasses. When you take the Glasstron off, be careful that your regular glasses not get caught on the Glasstron.

Adjust the nose piece and put on the Glasstron.

Pull out the nose piece if you wear glasses. Open the side pieces by grasping the side piece tips and put on the Glasstron.

Caution:

Be careful not to poke your eyes with the side piece tips when putting the Glasstron on or off.

Adjust the angle of the display unit.

Adjust the angle of the side pieces by grasping the side piece tips to adjust the display unit to the most suitable viewing position. You do not necessarily have to rest the side pieces on your ears.

Side piece

Nose piece

Confidential

To use the supplied nose piece

If you are still unable to have a full view of the screen or clear picture colour on the Glasstron after performing step 2 above, replace the nose piece with the supplied nose piece (black).

1 Remove the nose piece in an upward direction

while grasping the nose piece support.

-GB

2 Insert B of the supplied nose piece

(black) into the round notch A.

1-2PLM-A35E (AEP)

Adjust the width of the side pieces.

There are two settings for the side piece width adjustment. If the fit seems loose, insert the side piece adjusters to the hinges of the left and right side pieces.

To use the side piece adjusters

1 This is the original

position. Normally keep adjusters here.

Side piece adjuster

To reset the side piece adjusters, turn the side pieces inside slightly and reverse the above procedure.

To put the side piece adjuster back, press A to the illustrated direction until it “clicks” into place.

2 Turn the side pieces

inside slightly then gently squeeze the top and bottom of the side piece adjuster and pull out to release.

3 Slide the side piece

adjuster toward the display unit.

4 Reinsert the side piece

adjuster tines into the hinge area between the side piece and display unit. Repeat the procedure for the other side piece.

Display unit

Using side piece adjusters

Not using side piece adjusters

Side piece

Getting Started

Wearing the Glasstron (continued)

For increased comfort while wearing Glasstron

If the Glasstron fit is loose or uncomfortable, place the supplied side piece pads onto the tip of each side piece.

Note

Use the side peace pads pocket-side inward.

Wear the stereo earphones.

Detach the stereo earphones from the display unit and put them in your ears.

Notes

•If the stereo earphones are loose, we recommend using the spare ear-pads (not supplied).

•If your head is small, you may not be able to use the Glasstron.

•Depending on your eyesight, you may not be able to focus on the picture properly. In such a case, it is not a malfunction.

Using the Glasstron

If you set the user lock, unlock it (page 19).

Before you start…

Be sure to follow the procedures in “Connecting the Glasstron” (pages 8 - 11) and “Wearing the Glasstron” (pages 12 - 14).

WARNING

Each time you use this product, adjustment screens will appear, requiring the viewer to properly fit the product. To prevent eye damage, do not use this product if the vertical lines do not cross the horizontal line on the next screen.

The Glasstron includes two small (left and right) LCDs. You are watching a combined picture created from these two screens. Although the screen position is properly aligned at the factory, it may become misaligned if the Glasstron is deformed or damaged. Check the screen position alignment every time you turn on the Glasstron. If you cannot have correct screen alignment, stop using the Glasstron immediately.

Turn on the Glasstron using the POWER ON/OFF switch.

The POWER lamp lights up.

POWER

ON/OFF

Screen

continued

Operations

-GB

Using the Glasstron (continued)

If the screens are aligned, press the START/BATT CHECK button.

If the image you see matches one of the pictures below, stop using the Glasstron immediately.

Left screen Right screen

The combined picture you see with both eyes

If the image you see matches one of the pictures below, you have correct screen alignment.

Correct Correct Correct Correct

Correct

START/BATT CHECK

You may see a horizontal line on the left screen rather than the right screen and vertical lines on the right screen rather than the left screen. This is not a malfunction.

Use of the Glasstron under such conditions may cause eye fatigue or eye damage.

Incorrect Incorrect Incorrect

continued

When no vertical lines cross the horizontal line.

If you cannot see a proper arrangement of these lines even after resting your eyes for a few hours, the Glasstron may not be operating correctly. Contact your Sony dealer or local authorized Sony service facility.

-GB

When the horizontal line appears as a diagonal line.

When the centre vertical line does not cross the horizontal line.

Confidential

1-3 PLM-A35E (AEP)

Start playback on the video equipment connected to the

Glasstron. Adjust the volume by turning the VOL control.

When you set the AVLS ON/OFF switch to ON, you cannot turn up the volume beyond the defined limit (see page 18).

VOL

lower louder

Check that the four corners of the screen are clear.

If the four corners of the screen are not clear, do the step 2 (page 16) to check the screen position alignment again.

Adjust the brightness by turning the BRIGHT control.

BRIGHT

·µ

less bright brighter

Operations

Using the Glasstron (continued)

After you finish using the Glasstron

Take off the Glasstron, and turn off the power.

Note on the LCDs

Preventing sound from escaping through the stereo headphones

–– AVLS (Auto Volume Limiter System):

Keeps down the maximum volume to protect your ear. You cannot turn up the volume beyon d the defined limit even if you try to turn it up.

Set the AVLS ON/OFF switch to ON.

AVLS

OFF ON

To turn the AVLS off

Set the AVLS ON/OFF switch to OFF.

Screen warnings against overuse of the Glasstron

To prevent eye fatigue or eye damage, after you use the Glasstron for three hours the following caution appears on the screen and the power turns off automatically.

TIME OUT ZEIT ZU ENDE TEMPS DEPASS

Caution: Motion sickness from viewing programmes.

Some viewers may experience motion sickness, headache or nausea from viewing movies or video programmes, especially those with intense action and movement. If you feel any of these symptoms, stop using the product immediately. To avoid personal injury or injury to others, do not drive a car or motorcycle, nor do anything that requires concentration until the symptoms disappear.

Caution: Motion sickness from external motion.

Do not use the product while subject to external motion –– for example, as a passenger in a car. Use of this product under these conditions may cause motion sickness.

Setting the user lock

WARNING

This product should not be used by children age 15 or younger. The eyes of children are still developing and may be adversely affected by use of this product. To prevent such use, this product is equipped with the user lock system.

When the user lock is on, audio and video signals are not input and all operations except power on/off are disabled. To use the Glasstron, unlock the user lock.

Set the user lock switch as shown in the illustration.

USER LOCK BEN. –SPERRE VERR. UTILIS

Bottom of the Power supply box

To unlock the user lock

Set the user lock switch to the opposite position.

Lock

Unlock

continued

Operations

-GB

Using an optional battery pack

If you use a battery pack such as the NP-F550/F750/F950, you can use the Glasstron without connecting to mains.

Charge the battery pack before use by using the optional battery charger, BC-V615. You cannot charge the battery pack while it is on the unit.

Slide the BATT/COVER RELEASE button to remove the cover.

When not using the unit, keep the cover on the power supply box.

BATT/COVER RELEASE button

Attach the battery pack to the power supply box.

Install the battery pack properly making sure it is not crooked against the power supply box. To remove the battery pack, slide and hold the BATT/COVER RELEASE button and pull the battery pack off.

Battery pack Battery life

NP-F550 Approx. 7 hours

* The above indications are for fully charged

batteries.

* Actual battery life depends on conditions of

use.

* You can also use a battery pack such as the

NP-F530/F730/F750/F930/F950 (not supplied) with the Glasstron.

* You can use an “InfoLITHIUM™” battery

pack with the Glasstron. When using such a battery pack, the estimated remaining battery life is displayed with the indicator instead of the time counter.

Power supply box

BATT/COVER RELEASE button

Notes

• While using the battery pack, if you connect or disconnect the AC power adaptor, the power turns off. To turn the power on, press the POWER ON/OFF switch again.

• If the POWER lamp flashes while using the battery pack, replace the battery pack with a fresh one.

• Battery life may be shorter in a cold environment. This is a typical battery characteristic.

“InfoLITHIUM” is a trademark of Sony Corporation.

Battery pack

Confidential

-GB

1-4PLM-A35E (AEP)

Checking the remaining battery life

When no indication or caution appears on the screen, press the START/ BATT CHECK button.

The remaining battery life appears and the picture disappears.

START/BATT CHECK

When the battery pack is weak, the following message appears on the screen. Replace the battery pack with a charged one.

BATTERY DOWN AKKU LEER PILE PLATE

When using the AC power adaptor, the “

” mark appears on the

screen.

Operations

Checking the supplied accessories

Check that the following accessories are supplied with your Glasstron. If any item is not supplied, contact your Sony dealer or local authorized Sony service facility.

• Display unit/Power supply box (1)

• AC power adaptor AC-PLM2 (1)

• Plug adaptors (phono jack y phono jack) (3)

• Nose piece (black) (1)

Fully charged

Remaining battery life

dead

Precautions

Use

• Operate the product only with the supplied AC power adaptor (AC-PLM2). If you use a different AC power adaptor, it may cause a malfunction.

Unified polarity plug

• Should any liquid or solid object fall into the cabinet, unplug the product and have it checked by qualified personnel before operating it further.

• Always turn the product off when you do not use it. Unplug the product from the mains if you are not going to use it for several days or more. To disconnect the cord, pull it out by the plug. Never pull the cord itself.

• Do not overload mains, extension cords, or convenience receptacles beyond their capacity, since this can result in fire or electric shock.

• Do not use attachments not recommended by the manufacturer, as they may cause hazards.

• Avoid using earphones at high volume. Hearing experts advise against continuous, loud, and extended play. If you experience a ringing in your ears, reduce volume or discontinue use.

• Do not touch the AC power adaptor or power supply box with wet hands. If you fail to observe this, it may cause electric shock.

• Do not drop or give a mechanical shock to the product.

Installation

• To prevent internal heat buildup, do not block the ventilation openings.

• Avoid operating the product at temperatures below 5°C (41°F).

• Do not subject the product to high temperature or direct sunlight. If you do not observe the above instructions, the product may become deformed and the screens may become impossible to align. If you keep watching misaligned screens, you may develop eye fatigue. Follow the instructions in “Using the Glasstron” (pages 15 - 18), to be sure the screens are aligned. If you find the screens misaligned, have the product repaired at your Sony dealer or local authorized Sony service facility.

• Do not place the product in locations where it is wet, humid, dusty, smoky, or steamy. Do not use this product near or around water. It may cause fire or electric shock. Especially, do not use the product in the bathroom.

• If the product is transported directly from a cold to a warm location, or if the room temperature has changed suddenly, the picture may be blurred or show poor colour. This is because moisture has condensed on the lenses inside. If this happens, let the moisture evaporate before using the product.

• Do not place the product on an unstable cart, stand, table, or shelf. The product may fall, causing serious injury to a child or an adult, and serious damage to the product.

• Do not allow anything to rest on or roll over the power cord, and do not place the product where the power cord is subject to wear or abuse.

Others

• Unplug the product from the wall outlet and refer servicing to qualified service personnel under the following conditions:

- When the power cord or plug is

damaged or frayed.

- If liquid has been spilled into the

product.

• Mains lead (1)

• Audio/video cable (special miniplug y phono plug) (1)

• Audio/video cable (special miniplug y stereo miniplug) (1)

-GB

- If the product has been exposed to rain or water.

- If the product has been subject to excessive shock by being dropped, or the cabinet has been damaged.

- If the product does not operate normally when following the operating instructions. Adjust only those controls that are specified in the operating instructions. Improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to normal operation.

- When the product exhibits a distinct change in performance –– this indicates a need for service.

• Do not disassemble or modify the product. It may cause fire or electric shock. Have the product checked and repaired at your Sony dealer or local authorized Sony service facility.

• Do not attempt to service the product yourself since opening the cabinet may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

• When replacement parts are required, be sure the service technician certifies in writing that he has used replacement parts specified by the manufacturer that have the same characteristics as the original parts. Unauthorized substitutions may result in fire, electric shock, or other hazards.

• Upon completion of any service or repairs to the product, ask the service technician to perform routine safety checks (as specified by the manufacturer) to determine that the product is in safe operating condition, and to so certify.

• Unplug the product from the mains before cleaning. Clean the product gently with a dry, soft cloth, or a soft cloth slightly moistened with a mild detergent solution. Do not use any type of solvent, such as alcohol or benzine.

• Side piece pads (2)

• Operating instructions manual (1)

• Safety Instructions (1)

• Warranty (1)

If the nose piece is disconnected

Reinsert the nose piece to its position.

Insert B to A.

If the side pieces are disconnected

You can reattach the side piece. Insert the side piece to the inner side of the display unit. Gently push until it clicks into position. However, reattaching the side pieces may cause a malfunction. Be careful not to reattach them too often.

Window coating

To avoid reflection, the windows are coated. Do not place the product in locations subject to sudden temperature changes, or where it is excessively hot (above 60ºC/96ºF). For example, inside a car parked in direct sunlight. The coating may develope cracks.

Windows

Additional Information

-GB

Confidential

1-5 PLM-A35E (AEP)

MEMO

Confidential

1-6PLM-A35E (AEP)

(END)

SECTION 2

)

qd connector

(CN704)

5 connector (CN801)

q; connector (CN901)

7 connector

(CN701)

6 unweaved cloth

qf two flexible boards

(CN705, 706)

qg two flexible boards

(CN702, 703)

1 step screw

3 sheet

2 insulator

qj HP-A01 (C)

MOUNTED PWB

qs RG-A01 (C)

COMPLETE PWB

qh Remove two solders of

ear MDR-E805PT//K SET receiver (HEADPHONE (R)).

qh Remove two solders of

ear MDR-E805PT//K SET receiver (HEADPHONE (L)).

qa DL-A01

COMPLETE PWB

9 PC board holder

8 screw

(PTT1.7 × 6)

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

CABINET (FRONT)

4 three claws

5 cabinet (front)

2 two screws

(PTT1.7 × 6)

2 two screws

3 screw

(PTT1.7 × 6)

RG-A01 (C) COMPLETE PWB, HP-A01 (C) MOUNTED PWB, DL-A01 COMPLETE PWB

(PTT1.7 × 6

Confidential

2-1 PLM-A35E (AEP)

BACK LIGHT UNIT

3 back light unit

1 unweaved cloth

2 two claws

1 unweaved cloth

EAR MDR-E805PT//K SET RECIVER (HP701, 702)

qa vine (R)

7 two bosses

9 two bosses

q; hinge bearing (R)

3 hinge block (R)

8 adjustor

4 two screws

6 vine cover (L)

2 two claws

(PTT1.7 × 6)

5 claw

6 vine cover (R)

4 lens bloc

qs two ear MDR-E805PT//K SET

recivers (HEADPHONE (L/R))

5 claw

qa vine (L)

2 screw (PTT1.7 × 6)

3 hinge block (L)

Confidential

1 screw

(PTT2 × 20)

2 screw

(PTT1.7 × 6)

8 adjustor

1 screw

(PTT2 × 20)

2-2PLM-A35E (AEP)

(END)

7 two bosses

9 two bosses

q; hinge bearing (L)

SECTION 3

)

ELECTRICAL ADJUSTMENTS

Precautions on adjustment:

1. Perform the adjustment in the given order.

2. Power supply voltage: DC 9 V

3. Equipment required Electrical adjustment requires the following measuring equipment.

(1) Oscilloscope: 2 phenomena, band 30 MHz or more, with de-

lay mode (use 10 : 1 probe unless otherwise specified) (2) Pattern generator (3) Regulated power supply (4) Digital voltmeter (5) Frequency counter (6) Connector for adjustment

4. Measurement points for adjustment are located at CN803 on

the RG-A01 board. The pin No. and signal name of CN803 is listed below.

• RG-A01 Board, CN803

Pin No. Signal Name

1GND 2 G OUT 3 B OUT 4 R OUT 5GND

Pin No. Signal Name

6HD 7NC 8NC 9NC

10 NC

Preparation:

Connect electrical blocks as shown below.

Connector for check (CN305

pattern

generator

S VIDEO IN jack (J401) or A/V IN jack (J402) YM-A01 board

YM-A01 board

Adjusting

Remote

Commande

5. Setting up Input Signals (1) S VIDEO Signal

Connect an oscilloscope to the Y signal pin of the S VIDEO IN connector, and check that the sync signal of Y signal is approximately 0.3 V, video amplitude is approximately 0.7 V , and the setup level is 0 V. (If using the VTR with S VIDEO OUT terminal, check further that the chroma signal and burst signal do not remain.) Also, connect an oscilloscope to the chroma signal pin of the S VIDEO IN connector, and check that the burst signal amplitude of chroma signal is approximately 0.3 V and it is flat, and moreover, the amplitude ratio of burst signal to “red” signal is 0.30 : 0.66.

Setup level: Potential difference between black and pedestal

Y signal

White (75%)

approx.

0.53V

Pedestal

Chroma signal

White (100%)

Horizontal

sync signal

Red

Black

approx.

0.7 V

approx.

0.3 V

approx.

0.3 V

Set

DC 9V

Regulated

power supply

Note: In the adjustment where the S VIDEO input is designated, if ad-

justment was made with the VIDEO input. The specification of this set will not be satisfied. Always follow the designation. If adjustment was made using the VTR with S VIDEO OUT ter minal as a signal source, the performance of this set depends on that VTR. Therefore, use the pattern generator with the Y/C separate output terminals, if possible.

DC IN 9 V jack (J101) DD-A02 board

Extension cable

(J-6082-291-A)

Burst signal

(to be flat)

Burst amplitude : chroma amplitude = 0.30 : 0.66

Fig. 3-1. Pattern generator’s color bar signals

(2) VIDEO Signal

In adjusting this set, video signals obtained from the pattern generator are used, and therefore these video output signals must satisfy the specification. Connect the oscilloscope to the VIDEO IN terminal, and confirm that the sync signal amplitude of video signals is approximately 0.3 V, the amplitude of video part is approximately 0.7 V, burst signal amplitude is approximately 0.3 V and flat, and the le v el ratio of burst signal to “red” signal is 0.30 : 0.66.

White (75%)

approx.

0.53 V

approx.

0.3 V Pedestal

Horizontal sync signal

White (100%)

Black

Red

approx.

0.7 V

Burst signal

(to be flat)

approx.

0.3 V

Fig. 3-2. Pattern generator’s color bar signals

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3-1 PLM-A35E (AEP)

[Preparation for Adjustment]

1. Service Jigs (1) Adjusting remote commander (RM-95-modified)

Note: J-6082-053-B

(2) Extension cable (for remote commander plug converter)

J-6082-291-A

Note: The page will not be changed over, unless the microprocessor in

the adjusting remote commander is a new one (uPD7503-G-C56-

12). In such a case, replace with new microprocessor (8-759-148-

35).

2. Adjusting Remote Commander For the adjustment, the adjustment data saved in the nonvolatile memory (EEPROM) must be rewritten, and for this purpose the adjusting remote commander is used. The adjusting remote commander makes two-way communication with the set using a remote control signal line (LANC). The adjusting remote commander transmits pages, addresses, and data up/down commands to the set. The set transmits pages, addresses, and data to the adjusting remote commander.

• Adjustment data writing

The PAUSE button must be pressed to write adjustment data (D page) to the nonvolatile memory (EEPR OM). (Unless the PAUSE is pressed, new data are not saved in the nonvolatile memory.)

(4) Select page: 1, address: 00, and set 01 data. Thus, the data

input to page: D is enabled.

(5) After the adjustment finished, select page: 1, address: 00,

and set 00 data. Thus, the data change on page: D is disabled.

(6) After all adjustments finished, turn OFF the main power sup-

ply (9 V) once.

4. Precaution on Use of The Adjusting Remote Commander Misoperation of the adjusting remote commander could erase correct data. T o prev ent this, it is recommended to make a note of data from page: D before adjustment, and also to make a note of new adjustment data each time the adjustment of one item is finished.

3. How to Use The Adjusting Remote Commander (1) Connect the adjusting remote commander to the CN305 on

YM-A01 board via extension cable (J-6082-291-A).

At this time, set the switch of extension cable to OFF

(

(OPEN) position

Turn ON the power on the set.

(2) Set the HOLD switch on the adjusting remote commander to

the HOLD (SERVICE) position. If connection is normal, the LCD display on the adjusting remote commander will be as shown in Fig.3-3.

Page Data Address

Fig. 3-3

(3) Operate the adjusting remote commander as follows:

• Page change Press the EDIT SEARCH + button to increase the page. Press the EDIT SEARCH – button to decrease the page. There are 16 pages from 0 to F.

Adjusting Remote Commander RM-95 (J-6082-053-B)

NORMAL(NOR)/SERVICE (ADJ) mode selection

)

HOLD

WIDE

ZOOM

TELE

REC

Page change

Data change

REVIEW

COUNTER RESET DISPLAY FRAME SLOW

FOCUS

AUTO/MAN

EDIT SEARCH

REC

START/ STOP

POWER

PAUSE

Data writing

Hexadecimal numbers LCD display Decimal conversion

0123456789ABCDEF

23456789 A b c d E F

2 3 4 5 6 7 8 9 10 11 12 13 14 15

• Address change Press the FF (M) button to increase the address. Press the REW (m) button to decrease the address. There are 256 addresses from 00 to FF.

• Data change (data setting) Press the PLAY (N) button to increase the data. Press the STOP (x) button to decrease the data. There are 256 data from 00 to FF.

Confidential

REW

STOP

RM-95

Address change

Fig. 3-4

3-2PLM-A35E (AEP)

5. Data Processing Certain adjustment items require the microprocessor data to be read out or the displayed data (hexadecimal numbers) on jigs or adjusting remote commander to be calculated to get adjustment data. In such a case, convert hexadecimal numbers into decimal numbers once, then make calculation, and convert its result into hexadecimal number as adjustment data. Table 3-1 shows hexadecimal – decimal number conversion.

Hexadecimal – Decimal number conversion.

Lower digit of hex.

0123456789

Higher digit of hex.

123456789

1 2 3 4 5 6 7 8 9 A (A) B (b) C (c) D (d) E (E) F (F)

16 17 18 19 20 21 22 23 24 25 32 33 34 35 36 37 38 39 40 41 48 49 50 51 52 53 54 55 56 57 64 65 66 67 68 69 70 71 72 73 80 81 82 83 84 85 86 87 88 89

96 97 98 99 100 101 102 103 104 105 112 113 114 115 116 117 118 119 120 121 128 129 130 131 132 133 134 135 136 137 144 145 146 147 148 149 150 151 152 153 160 161 162 163 164 165 166 167 168 169 176 177 178 179 180 181 182 183 184 185 192 193 194 195 196 197 198 199 200 201 208 209 210 211 212 213 214 215 216 217 224 225 226 227 228 229 230 231 232 233 240 241 242 243 244 245 246 247 248 249

Table 3-1

(A) B(b) C(c) D(d) E(E) F(F)

10 26

42 58 74

90 106 122 138 154 170 186 202 218 234 250

11 27

43 59 75

91 107 123 139 155 171 187 203 219 235 251

13 14 15

29 30 31

45 46 47

61 62 63

77 78 79

93 94 95

108

109 110 111

124

125 126 127

140

141 142 143

156

157 158 159

172

173 174 175

188

189 190 191

204

205 206 207

220

221 222 223

236

237 238 239

252

253 254 255

Note: Data in ( ) are displayed on jig or adjusting remote commander. Example:If display on jig or adjusting remote commander is BD (bd)

As higher digit of hex. number is B (b) and lower digit is D (d), the intersection “189” of 1 and 2 in Table 1 is the target decimal number.

Confidential

3-3 PLM-A35E (AEP)

6. P ower ON Procedure for Adjustment (1) Connect an extension cable to the adjusting remote commander. (2) After making sure that the HOLD switch on the adjusting remote commander is not turned on (not at left (NOR) position), supply 9

Vdc to the DC IN (J101).

(With the HOLD switch at HOLD position, the initial operation of the set does not finish, disabling the POWER switc h function) (3) Turn ON the POWER switch on the set. Confirm that a green LED lights up. (4) Set the HOLD switch on the adjusting remote commander to the HOLD (right (ADJ)) position.

7. Adjustment Finishing Procedure

Order Page Address Data Description Remarks

1. D 01 – 31 Check if adjusted data are written correctly to the given page and address.

2. 2 00 00

3. 1 00 00 Page D: Write protect

4. Set HOLD switch on adj. remote commander to NOR position.

Set data 00 to given page and address.

Page 2: Reset

8. Check screen skip mode setting

Order Page Address Data Description Remarks

1. 2 00 01 Set data 01 to given page and address. Select RAM address page 1

2. 2 2C 00 Set data 00 to given page and address. No output check screen

Resetting: Turn the POWER switch off.

9. Picture control standard setting (LCD and OPTICS blocks adjustments)

Order Page Address Data Description Remarks

1. 1 00 01 Set data 01 to given page and address. Page D: Cancel protect

2. D 01 41 Set data 41 to given page and address, and press PAUSE. Ope. – Brightness: Center

After LCD and OPTICS blocks adjustments

Order Page Address Data Description Remarks

1. 1 00 01 Set data 01 to given page and address. Page D: Cancel protect

2. D 01 01 Set data 01 to given page and address, and press PAUSE. Ope. – Brightness: Reset center

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3-4PLM-A35E (AEP)

[Preset Data Writing]

Connection:

(1) Connect the adjusting remote commander to the CN305 on YM-A01 board.

Data Writing Procedure

(1) Set data: 01 to page: 1, address: 00. (2) Enter the data given in the table below.

Note: To write the data to the EEPROM, press the PAUSE button on the adjusting remote commander each time the data is set.

(3) After writing all data, set data: 00 to page: 1, address: 00.

D Page Adjustment Address and Initial Value

Data in ( ) in Initial set column are different from the data adjusted at the shipment. Make setting and adjustment only when IC302 (EEPROM) was replaced. Data in Memo column are fixed value. Always set to this value.

Address

00 –– Not used 01 01 (01) 02 00 00

03 00 00 04 (7D) 05 (78) 06 (75) 07 (67) 08 (60)

09 (08) 0A 4A 4A 0B 03 03 0C 40 40 0D 00 00 Fixed value 0E 40 40 0F 0B 0B

10 00 00

11 74 74 Fixed value

12 (80) Color adj.

13 (A0) G brightness adj.

14 (1A) G contrast adj.

15 (80) R brightness, white adj.

16 (80) B brightness, white adj.

17 A2 A2

18 CE CE Fixed value

19 80 80 1A (80) R contrast adj. 1B (80) B contrast adj. 1C 6D 6D 1D 0A 0A Fixed value

1E 80 80

1F (80) TG PLL adj.

20 03 03

21 00 00

22 00 00

23 00 00 Fixed value

24 00 00

25 00 00

26 0D 0D

Data

Initial set Memo

Remarks

LCD, OPTICS blocks adj.

(Set data: 41 during adj.)

Fixed value

Battery down adj.

Address

27 0D 0D Fixed value 28 (A0) V. COM R adj.

29 (A0) V. COM L adj. 2A (C0) 2B (C0) 2C 00 00 2D 00 00 2E 00 00 2F 00 00

30 (FF) Brightness vol. center adj.

31 23 23 Fixed value

32-FF –– Not used

Data

Initial set Memo

Remarks

BL balance adj.

Fixed value

Confidential

3-5 PLM-A35E (AEP)

LCD BLOCK

• T o adjust the LCD bloc k, connect a pattern generator as sho wn below. (For details, see page 3-1)

Pattern generator

Set

S VIDEO IN jack (J401)

• Set the picture control standard. (See page 3-4)

• Make the following adjustment in the given order.

[TG PLL Adjustment]

Condition:

Input signal No signal Measurement point RG-A01 board CN803 pin 6 Measuring equipment Frequency Counter Adjustment page D Adjustment address 1F Specified value 15.625 kHz ± 20 Hz

Connection:

[Brightness Volume Center Adjustment]

Preparation:

[BRIGHT] control (RV301): Center (click position)

Condition:

Input signal Color bar signal (white 75%) Measurement point Measuring equipment Adjustment page D Adjustment address 30 Specified value XXh = 80h ± 09h

Adjustment Procedure:

(1) Set data: 01 to page: 2, address: 00. (2) Read data: XXh on page: 2, address: 2A. (3) Confirm that the data: XXh satisfies the specified value. (4) Set (or confirm) data: 01 to page: 1, address: 00.

(Cancel D page protect) (5) Enter the data: XXh to page: D, address: 30. (6) Press the PAUSE button to write data.

Displayed data on the adjusting remote commander

Frequency counter

RG-A01 Board

CN803 pin 6 (HD)

CN803 pin 1 (GND)

+ –

Adjustment Procedure:

(1) Connect a frequency counter to the CN803 pin 6 (HD) and

pin 1 (GND) on RG-A01 board.

(2) Set (or confirm) data: 01 to page: 1, address: 00.

(Cancel D page protect)

(3) On page: D, address: 1F, change data with the PLAY and

STOP buttons and press the PAUSE button to write data so that the frequency counter reading satisfies the specified value.

Adjustment and Connection Location: RG-A01 board

(see page 3-14)

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3-6PLM-A35E (AEP)

[G Contrast Adjustment]

Condition:

Input signal

Measurement point RG-A01 board CN803 pin 2 Measuring equipment Oscilloscope Adjustment page D Adjustment address 14 Specified value 2.4 ± 0.1 Vp-p

10 step signal, 1 Vp-p (White: 100%)

[G Brightness Adjustment]

Condition:

Input signal

Measurement point RG-A01 board CN803 pin 2 Measuring equipment Oscilloscope Adjustment page D Adjustment address 13 Specified value 8.4 ± 0.1 Vp-p

10 step signal, 1 Vp-p (White: 100%)

Connection:

Oscilloscope

(DC range)

RG-A01 Board

CN803 pin 2 (G OUT)

CN803 pin 1 (GND)

–

Adjustment Procedure:

(1) Connect an oscilloscope to the CN803 pin 2 (G OUT) and

pin 1 (GND) on the RG-A01 board.

(2) Set (or confirm) data: 01 to page: 1, address: 00.

(Cancel D page protect)

(3) On page: D, address: 14, change data with the PLAY and

STOP buttons and press the PAUSE button to write data so that the A level of waveform on the oscilloscope satisfies the specified value.

Black level

White level

Connection:

Oscilloscope

(DC range)

RG-A01 Board

CN803 pin 2 (G OUT)

CN803 pin 1 (GND)

–

Adjustment Procedure:

(1) Connect an oscilloscope to the CN803 pin 2 (G OUT) and

pin 1 (GND) on the RG-A01 board.

(2) Set (or confirm) data: 01 to page: 1, address: 00.

(Cancel D page protect)

(3) On page: D, address: 13, change data with the PLAY and

STOP buttons and press the PAUSE button to write data so that the B level of waveform on the oscilloscope satisfies the specified value.

Black level

Adjustment and Connection Location: RG-A01 board

(see page 3-14)

Black level

Adjustment and Connection Location: RG-A01 board

(see page 3-14)

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3-7 PLM-A35E (AEP)

[R Contrast Adjustment]

Condition:

Input signal

Measurement point RG-A01 board CN803 pin 4 Measuring equipment Oscilloscope Adjustment page D Adjustment address 1A Specified value 2.4 ± 0.1 Vp-p

10 step signal, 1 Vp-p (White: 100%)

[R Brightness Adjustment]

Condition:

Input signal

Measurement point RG-A01 board CN803 pin 4 Measuring equipment Oscilloscope Adjustment page D Adjustment address 15 Specified value 8.4 ± 0.1 Vp-p

10 step signal, 1 Vp-p (White: 100%)

Connection:

Oscilloscope

(DC range)

RG-A01 Board

CN803 pin 4 (R OUT)

CN803 pin 1 (GND)

–

Adjustment Procedure:

(1) Connect an oscilloscope to the CN803 pin 4 (R OUT) and

pin 1 (GND) on the RG-A01 board.

(2) Set (or confirm) data: 01 to page: 1, address: 00.

(Cancel D page protect)

(3) On page: D, address: 1A, change data with the PLAY and

STOP buttons and press the PAUSE button to write data so that the C level of waveform on the oscilloscope satisfies the specified value.

Black level

White level

Connection:

Oscilloscope

(DC range)

RG-A01 Board

CN803 pin 4 (R OUT)

CN803 pin 1 (GND)

–

Adjustment Procedure:

(1) Connect an oscilloscope to the CN803 pin 4 (R OUT) and

pin 1 (GND) on the RG-A01 board. (2) Set (or confirm) data: 01 to page: 1, address: 00.

(Cancel D page protect) (3) On page: D, address: 15, change data with the PLAY and

STOP buttons and press the PAUSE button to write data so

that the D level of waveform on the oscilloscope satisfies

the specified value.

Black level

Adjustment and Connection Location: RG-A01 board

(see page 3-14)

Confidential

Black level

Adjustment and Connection Location: RG-A01 board

(see page 3-14)

3-8PLM-A35E (AEP)

[B Contrast Adjustment]

Black level

Condition:

Input signal

Measurement point RG-A01 board CN803 pin 3 Measuring equipment Oscilloscope Adjustment page D Adjustment address 1B Specified value 2.4 ± 0.1 Vp-p

10 step signal, 1 Vp-p (White: 100%)

[B Brightness Adjustment]

Condition:

Input signal

Measurement point RG-A01 board CN803 pin 3 Measuring equipment Oscilloscope Adjustment page D Adjustment address 16 Specified value 8.4 ± 0.1 Vp-p

10 step signal, 1 Vp-p (White:100%)

Connection:

Oscilloscope

(DC range)

RG-A01 Board

CN803 pin 3 (B OUT)

CN803 pin 1 (GND)

–

Adjustment Procedure:

(1) Connect an oscilloscope to the CN803 pin 3 (B OUT) and

pin 1 (GND) on the RG-A01 board.

(2) Set (or confirm) data: 01 to page: 1, address: 00.

(Cancel D page protect)

(3) On page: D, address: 1B, change data with the PLAY and

STOP buttons and press the PAUSE button to write data so that the E level of waveform on the oscilloscope satisfies the specified value.

Black level

White level

Connection:

Oscilloscope

(DC range)

RG-A01 Board

CN803 pin 3 (B OUT)

CN803 pin 1 (GND)

–

Adjustment Procedure:

(1) Connect an oscilloscope to the CN803 pin 3 (B OUT) and

pin 1 (GND) on the RG-A01 board.

(2) Set (or confirm) data: 01 to page: 1, address: 00.

(Cancel D page protect)

(3) On page: D, address: 16, change data with the PLAY and

STOP buttons and press the PAUSE button to write data so that the F level of waveform on the oscilloscope satisfies the specified value.

Adjustment and Connection Location: RG-A01 board

(see page 3-14)

Adjustment and Connection Location: RG-A01 board

(see page 3-14)

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3-9 PLM-A35E (AEP)

+ 43 hidden pages