Sony TL-HA80 Service manual

TL-HA80

SERVICE MANUAL

Ver 1.0 2001.05

Photo : TL-HA80

SPECIFICATIONS

Power source DC 9V from AC power adaptor Dimensions Approx. 3

(92 x 96 x 165.5 mm)

Mass Approx. 10.58 oz

(300 g)

Supplied accessories AC power adaptor (AC-T127)

Telephone cord: approx. 1 ft. (30cm) Stereo audio cable (stereo mini-plug): approx. 3.5 ft. (1m) Headset TL-DR0140 Headset hanger

⁄8 x 3 7⁄8 x 6 5⁄8 inches (w/h/d)

US Model

Photo : TL-DR0140

Headset (TL-DR0140)

Dimension (Cord) Approx. 7 ft. (2m) Dimension (Plug) 3.5 mm dia. Mass Approx. 0.88 oz (25 g) (without cord)

Type Open air dynamic Driver units 30 mm dia. (CCAW Voice coil) Sensitivity 104 dB/mW Impedance 24 Maximum input power 1000 mW (IEC)

Type Close-talking pipe microphone Unit Back electret condenser Output impedance Under 2.2 k Closed circuit voltage level -47 dB (0 dB = 1 V/Pa)

Design and specifications are subject to change without notice.

HANDS FREE ADAPTOR

9-873-108-11

2001E0200-1

Sony Corporation

Personal Audio Company

Shinagawa Tec Service Manual Production Group

TL-HA80

TABLE OF CONTENTS

Specifications ........................................................................... 1

1. GENERAL ...................................................................... 2

2. DISASSEMBLY

2-1. Cabinet (Upper) ASSY ............................................... 4

2-2. Main noard, Volume board, Jack Bords...................... 4

3. DIAGRAMS

3-1. Block Diagram ............................................................ 5

3-2. Schematic Diagram ..................................................... 6

3-3. Printed Wiring Boards ................................................ 7

4. EXPLODED VIEWS .................................................... 8

5. ELECTRICAL PARTS LIST ..................................... 9

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.

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Setting up the unit

Connect the unit

Connect the AC power adaptor to the DC IN jack and to an AC outlet.

Disconnect the handset cord from the handset jack on the phone and connect the handset cord to the HANDSET jack of the unit.

Open the cover on the bottom of this unit and remove the switch securing cover.

Turn ON the TEST switch and make sure that you can hear a long confirmation beep from the speaker side on the handset.

If no long confirmation beep is heard from the speaker side on the handset, see "If no long confirmation beep is heard" to select the setting of the A and B switches.

Turn OFF the TEST switch and put a switch securing cover.

Close the cover on the bottom.

Connect the telephone cord (supplied) to the phone and to the TEL jack of the unit.

SECTION 1

GENERAL

This section is extracted from instruction manual.

Notes

• Use only the supplied AC-T127 AC power adaptor. Do not

use any other AC power adaptor.

• Use only the supplied telephone cord. Do not use any other

telephone cord.

• Do not close the AC power adaptor. It may cause noises.

• During a power interruption, you cannot use this unit.

TL-HA80

Switching handset/headset conversation

The handset/headset conversation can be switched by placing the handset on the TALK lever.

When the handset is placed on the TALK lever: Headset conversation mode When the handset is not placed on the TALK lever: Handset conversation

mode

Attach the headset hanger to the headset from the slit as illustration

Be sure to insert the protrusion of the headset hanger to the projection of the headset.

Hang the headset hanger on the hook.

Note

Do not hang the headset on as illustration

If no long confirmation beep is heard

1 Turn ON the TEST switch. 2 Set the A switch to the position (1 to 4) where a long

confirmation beep is heard. If this doesn't work and no long confirmation beep is heard yet,

turn the B switch to 2 and then set the A switch to the position where a long confirmation beep is heard.

Notes

• Depending on the handset, a long confirmation beep is heard from the microphone

side. Be sure to set the A and B switches to the position where a long confirmation beep is heard from the speaker side.

• If you have connected this unit to another phone, follow the instructions described

in “Connect the unit”.

Listening to music, etc. from an external equipment

If you want to listen to music, etc. from the external equipment, you can do it using the headset during handset on-hook status.

Notes

• When you are listening to music, etc. with the external equipment connected to

AUDIO IN jack, HEADSET VOLUME (TEL) is not available. Volume control is available with the connected equipment.

Also, turning off the sound from the connected equipment can be done either by shutting down the power for the external equipment or by pulling out the stereo audio cable from AUDIO IN jack on this unit.

• The sound of this unit is a monaural type.

Connect the headset

Using the headset hunger

The headset can be hung on the hook (supplied) by mounting the headset hanger (supplied) on the headset.

Connect the headset plug to the HEADSET jack.

Place the earpiece support unit behind the top of your ear.

Adjust the length of the headband so that the headset fits on your ear.

The earpiece can be rotated so it fits comfortably over either ear.

Position the headset microphone so that it is placed near the mouth.

Notes

• Listening with headset at high volume may affect your hearing.

• The earpad may deteriorate due to long-term storage or use. If you need to

replacing the earpad, it can be purchase separately (EP-Q1).

Tip

You can use the headset on either your right or left ear.

Tip

When an external equipment is connected to the AUDIO IN jack and the handset is not placed on the TALK lever, the sound from the external equipment is connected to the headset in either case that the handset is in the on-hook or off-hook status on the main body of the phone.

Additional tasks

Adjust the receiver volume

Adjust the microphone volume

Mute your voice

Notes

• If your phone's handset does not stay on the TALK lever

and easily drops from it, pull up the holder and place the handset as shown in the figure.

• Howling noise might occur depending on the connected

phone. In this case, lower the receiver HEADSET VOLUME (TEL) control to a suitable position before use.

Do this

Turn the HEADSET VOLUME (TEL) up to increase the receiver volume or down to decrease it.

Put a coin, etc. in the slot of the MIC VOLUME control, and turn right or left to adjust. Adjust the microphone volume control to the suitable position by asking another party on the line to check.

Press

to disable the microphone. The

button lights up.

again to cancel.

TL-HA80

SECTION 2

DISASSEMBLY

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

Set

Case (upper)

2-1. CASE (UPPER)

Case (upper)

Main board, Volume board, Jack board

Case (lower)

Screws (+BVTP3X10)

2-2. MAIN BOARD, VOLUME BOARD, JACK BOARD

Screws (+BVTP2.6X8)

Main board

Screw (+BTP2.6X8)

Audio board

MJ102

Screw (+BVTP3X10)

Screws (+BVTP2.6X8)

Claws

MJ101 Spred put the case (lower)

claws and

MJ101 off from

Screws (+BTP2.6X8)

Volume board

Knob (VOL)

Case (upper)

Case (lower)

Knob (MIC)

3-1. BLOCK DIAGRAMS

SECTION 3

DIAGRAMS

TL-HA80

HANDSET

MJ101

S103

S102

S104

TEST MODE

OFF

S103-A

S103-B

S103-C

S103-D

S104-D

CDS1

D104

T102

TEST

SIGNAL

GENERATOR

Q104,105

T101

+5V

Q103

RV201

HANDSET VOLUME

(TEL)

MIC AMP

Q101,102

+5V

S105

TEST MODE

OFF

+5V

DELAY

D108

MJ102

F101 250V

RY101-1

500mA

RY101-2

TEL

F102 250V

500mA

F103 250V

500mA

JW103

VDD

RY101

RY102-1

VDD

RY102

RY103-1

VDD

RY103

S104-A

S104-B

S104-C

JW203

+5V

IC102

ANALOG SWITCH

IC105

MUTE

Q112

HEADPHONE

AMP

IC103

LEVEL DETECT

Q110,111

RV202

MIC VOLUME

J105

AUDIO IN

J301

HEADSET

RELAY

DRIVER

Q109

LED DRIVER

/BUFFER

Q108

+5V

S101

TALK

(HANDSET)

(HEADSET)

RELAY

DRIVER

Q106

DELAY

D109

DELAY

D107

MUTING

HOLD

IC101

+5V

CLR

+5V

S201

MUTING

D202

MUTING

D201

(LINE)

VDD

LED

DRIVER

Q107

+5V

+5V REG

IC104

D106

J103

DC IN 9V

• Signal path.

H : RX O : TX

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