Sony KV-HF21M50, KV-XF21M80 Service Manual

Self Diagnosis

Supported model

SERVICE MANUAL

MODEL COMMANDER DEST. CHASSIS NO.MODEL COMMANDER DEST. CHASSIS NO.

KV-HF21M50 KV-XF21M80

RM-952 Malaysia SCC-U21GA RM-952 India SCC-U22G

BG-3S

CHASSIS

TRINITRON

COLOR TV

KV-HF21M50/XF21M80

RM-952

Power requirements 110-240 V AC, 50/60 Hz For KV-XF21M80

Power consumption (W) Indicated on the rear of the TV Television system B/G, I, D/K, M Color system PAL, PAL 60, SECAM, NTSC4.43, NTSC3.58 Channel coverage

B/G VHF: E2 to E12 / UHF: E21 to E69 / CATV: S01 to S03, S1 to S41 I UHF: B21 to B68 / CATV: S01 to S03, S1 to S41 D/K VHF: C1 to C12, R1 to R12 / UHF: C13 to C57, R21 to R60

M VHF: A2 to A13 / UHF: A14 to A79 /

˘ (Antenna) 75-ohm external terminal Audio output 5W + 5W Number of terminal

D (Video) Input: 2 Output: 1 Phono jacks; 1 VP-P, 75 ohms

≥ (Audio) Input: 2 Output: 1 Phono jacks; 500 mVrms 2 (Headphone) Output: 1 Minijack

Picture tube 21 inch

Tube size (cm) 54 Measured diagonally Screen size (cm) 51 Measured diagonally

Dimension (w/h/d, mm) 640 × 456 × 488 Mass (kg) 27

SPECIFICATIONS

Note

220-240 V AC, 50/60 Hz For KV-HF21M50

CATV: S01 to S03, S1 to S41, Z1 to Z39

CATV: A-8 to A-2, A to W+4, W+6 to W+84

CAUTION

SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.

Design and specifications are subject to change without notice.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON THE SCHEMA TIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

– 2 –

KV-HF21M50/XF21M80

RM-952

Section Title Page

SELF DIAGNOSIS FUNCTION................................ 4

1. GENERAL........................................................................ 8

2. DISASSEMBLY

2-1. Rear Cover Removal................................................ 22

2-2. Chassis Assy Removal ............................................. 22

2-3. F Bracket Removal .................................................. 22

2-4. Service Position ....................................................... 22

2-5. Replacement of Parts ............................................... 23

2-5-1. Replacement of Control Button ....................... 23

2-5-2. Replacement of Light Guide ............................ 23

2-6. Terminal Bracket Removal ...................................... 24

2-7. Degauss Coil Removal............................................. 24

2-8. Picture Tube Removal.............................................. 24

3. SET-UP ADJUSTMENTS

3-1. Beam Landing .......................................................... 26

3-2. Convergence............................................................. 27

3-3. Focus Adjustment .................................................... 29

3-4. G2 (Screen) and White Balance Adjustments ......... 29

Section Title Page

5. DIAGRAMS

5-1. Block Diagram ......................................................... 39

5-2. Frame Schematic Diagram ...................................... 42

5-3 Circuit Boards Location .......................................... 44

5-4. Schematic Diagrams and Printed Wiring Boards ... 45

(1) Schematic Diagram of A (1/2) Board ...................... 47

(2) Schematic Diagram of A (2/2) Board ...................... 50

(3) Schematic Diagrams of C3 and C5 Boards............. 56

(4) Schematic Diagrams of VM1 and F Boards ........... 61

5-5. Semiconductors........................................................ 65

6. EXPLODED VIEW

6-1. Chassis ..................................................................... 67

7. ELECTRICAL PARTS LIST....................................... 71

4. CIRCUIT ADJUSTMENT

4-1. Adjustments with Commander ................................ 30

4-2. Adjustment Method ................................................. 31

4-3. Picture Quality Adjustments.................................... 36

4-4. A Board Adjustment After IC003 (Memory)

Replacement............................................................. 36

4-5. Picture Distortion Adjustment................................. 37

– 3 –

KV -HF21M50/XF21M80

RM-952

SELF DIAGNOSTIC FUNCTION

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically begin to flash. The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER lamp flash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.

1. DIAGNOSTIC TEST INDICAT ORS

When an errors occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the problem. If there is more than one error, the lamp will identify the first of the problem areas.

Result for all of the following diagnostic items are displayed on screen. No error has occured if the screen displays a “0”.

Diagnostic

Item

Description

• Power does not turn on

• +B overcurrent (OCP) or overvoltage (OVP)

• Vertical deflection stopped

• Horizontal deflection overdrive

• White balance failure (no PICTURE)

• Micro reset

No. of times

STANDBY/TIMER

lamp flashes

Does not light

2 times

5 times

—

Self-diagnostic

display/Diagnostic

result

—

002:000 or 002:001~255 003:001~255 004:001~255

at the same time

005:000 or 005:001~225

101:00 or

101:001~225

Probable

Cause

Location

• Power cord is not plugged in.

• Fuse is burned out F4601 (F)

• H.OUT Q511 is shorted. (A board)

• IC1800 is shorted. (C5 board)(KV-XF21M80)

• -13V is not supplied. (A board)

• IC 503 faulty (A board)

• IC 301 faulty (A board)

• G2 is improperly adjusted. (Note 2)

• CRT problem.

• Video OUT IC1800 is faulty. (C5 board)(KV-XF21M80)

• IC301 is faulty. (A board)

• No connection A board to C3 board (KV-HF21M50) & C5 board (KV-XF21M80).

Discharge CRT (C3 & C5 Board)

•

• Static discharge

• External noise

Detected

Symptoms

• Power does not come on.

• No power is supplied to the TV.

• AC power supply is faulty.

• Power does not come on.

• Load on power line is shorted.

• Has entered standby state after horizontal raster.

• Ver tical deflection pulse is stopped.

• Power line is shorted or power supply is stopped.

• No raster is generated.

• CRT cathode current detection reference pulse output is small.

• Power is shut down shortly, after this return back to normal.

• Detect Micro latch up.

Note 1: If a + B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously.

The symptom that is diagnosed first by the microcontroller is displayed on the screen.

Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.

– 4 –

2. DISPLA Y OF STANDBY/TIMER LIGHT FLASH COUNT

2 times

5 times

KV-HF21M50/XF21M80

RM-952

Lamp ON 0.3 sec. Lamp OFF 0.3 sec.

Lamp OFF 3 sec.

STANDBY/SLEEP lamp

Diagnostic Item Flash Count* +B overcurrent/overvoltage 2 times Vertical deflection stopped

White balance failure 5 times * One flash count is not used for self-diagnostic.

3. STOPPING THE STANDBY/TIMER FLASH

Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER lamp from flashing.

– 5 –

KV -HF21M50/XF21M80

RM-952

4. SELF-DIAGNOSTIC SCREEN DISPLAY

For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurances of failure for confirmation on the screen:

[To Bring Up Screen Test]

In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:

[Screendisplay] / channel [5] / Sound volume [-] / Power ON

Note that this differs from entering the service mode (mode volume [+]).

Self-Diagnosis screen display

SELF DIAGNOSTIC

002 : 000 003 : 000 004 : 000 005 : 001

101 : 000

Numeral "0" means that no fault has been detected.

Numeral "1" means a fault has been detected.

5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you have completed the repairs, clear the result display to “0”.

Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.

[Clearing the result display]

To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the diagnostic screen is being displayed.

Channel [8] / 0

[Quitting Self-diagnostic screen]

To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

– 6 –

6. SELF-DIAGNOSTIC CIRCUIT

KV-HF21M50/XF21M80

RM-952

FROM

CRT

FROM

[+B] Q604 C

[V] Q509/507

IC301

Y/CHROMA JUNGLE

IK-IN

MP/

18 51

PROTECT

SDA

4635

IC001

SYSTEM

IO-8DAT

O-LED

IO-SDAT

MEMORY

B-DAT

54521

IC003

[+BovercurrentªOCPº] Occurs when an overcurrent on the +B(135) line is detected by Q604. If Q604 go to ON

and the voltage to pin 18 of IC301 should go down when V.SYNC is more than seven verticals in a period, the unit will automatically turn off.

[Verticaldeflectionstopped] Occurs when an absence of the vertical deflection pulse is detected by Q509 and IC001

shut down the power supply.

[Verticaldeflectionovercurrent] Occurs when an overcurrent on V drive line is detected by Q507. Power supply will be

shut down when detect this by IC001.

[Whitebalancefailure] If the RGB levels* do not balance or become low level within 5 seconds, this error will be

detected by IC301. TV will stay on, but there will be no picture.

* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)

– 7 –

KV -HF21M50/XF21M80

WARNING

• Dangerously high voltages are present inside the TV.

• Operate the TV only between 110 – 240 V AC. (For KV_XF21M80)/220-240V AC (For HF21M50)

To prevent fire or shock hazard, do not expose the TV to rain or moisture.

Do not operate the TV if any liquid or solid object falls into it. Have it checked immediately by qualified personnel only.

Do not open the cabinet and the rear cover of the TV. Refer servicing to qualified personnel.

Do not install the TV in hot, humid or excessively dusty places.

Do not install the TV in a confined space, such as a bookcase or built-in cabinet. Do not block the ventilation openings of the TV.

Do not pull the power cord to disconnect the TV. Pull it out by the plug.

Disconnect the power cord during lightning storms or if you are not going to use the TV for several days.

Install the TV in a stable position. Do not allow children to climb onto it.

Do not plug in too many appliances to the same power socket. Do not damage the power cord.

Clean the TV with a dry and soft cloth. Do not use benzine, thinner, or any other chemicals to clean the TV. Do not scratch the picture tube.

Using Your New TV

VIDEO

VIDEO IN

VIDEO OUT

AUDIO

L(MONO)

Getting Started

Step 1

Connect the antenna

(For KV-XF21M80)(India)

If you wish to connect a VCR, see the “Connecting a VCR” diagram below.

Using Your New TV

IEC connector (not supplied)

To video and audio outputs

VCR

(yellow)

-L (MONO) (white)

-R (red)

Antenna cable (not supplied)

To … 1 (video input)

Audio/Video cable (not supplied)

: Signal flow

To antenna output

Antenna cable (not supplied)

Rear of TV

Connecting a VCR

To watch the video, press …

(see page 12).

To ˘ (antenna)

: Signal flow

The operating instructions mentioned here are partial abstracts from the Operating Instruction Manual. The page numbers of the Operating Instruction Manual remain as in the manual.

– 8 –

SECTION 1

GENERAL

RM-952

Using Your New TV

VIDEO

VIDEO IN

VIDEO OUT

AUDIO

L(MONO)

Getting Started

Step 1

Connect the antenna

(For KV-HF21M50)(Malaysia)

If you wish to connect a VCR, see the “Connecting a VCR” diagram below.

Using Your New TV

IEC connector (not supplied)

To video and audio outputs

VCR

(yellow)

-L (MONO) (white)

-R (red)

Antenna cable (not supplied)

To … 1 (video input)

Audio/Video cable (not supplied)

: Signal flow

To antenna output

Antenna cable (not supplied)

Rear of TV

Connecting a VCR

To watch the video, press …

(see page 12).

To ˘ (antenna)

: Signal flow

Using Your New TV

Notes

• If you connect a monaural VCR, connect the yellow plug to

(the

yellow jack) and the black plug to

-L (MONO) (the white jack).

• If you connect a VCR to the ˘ (antenna) terminal, preset the signal

output from the VCR to the program number 0 on the TV.

• When no signal is input to the connected video equipment, the TV screen becomes blue.

Step 2

Note

• Do not use old batteries nor use different types of batteries together.

Step 3

CAUTION

Do not connect the power cord until you have completed making all other connections; otherwise a minimum leakage current might flow through the antenna and other terminals to ground.

Insert the batteries into the remote

Preset the channels automatically

Tips

• If you want to stop automatic channel presetting, press SELECT twice.

• If your TV has preset an unwanted channel or cannot preset a particular channel, then preset your TV manually (see page 9).

Note

• During automatic channel presetting, your TV screen will indicate “B/G”, “I”, “D/K” or “M” for the TV system.

Now You Are Ready. . .

To watch your TV, see page 11.

Front of TV

ONE-PUSH AUTOMATIC PROGRAMING

ONE-PUSH AUTOMATIC PROGRAMMING

VHF

LOW

B/G

– 9 –

KV-HF21M50/XF21M80

RM-952

Using Your New TV

Connecting optional components

You can connect optional audio/video components, such as a VCR, multi disc player, camcorder, video game or stereo system.

To watch the picture of the connected equipment, press …

(see page 12).

Connecting a camcorder/video game equipment using the … (video input) jacks

Note

• You can also connect video equipment to the … 1 (video input) jacks at

the rear of your TV.

Camcorder

Video game equipment

To video and audio outputs

: Signal flow

To… 2 (video input)

Audio/Video cable (not supplied)

ONE-PUSH AUTOMATIC PROGRAMING

(For KV-HF21M50)

Front of TV

Using Your New TV

Connecting optional components

(For KV-XF21M80)

You can connect optional audio/video components, such as a VCR, multi disc player, camcorder, video game or stereo system.

To watch the picture of the connected equipment, press …

(see page 12).

Connecting a camcorder/video game equipment using the … (video input) jacks

Note

• You can also connect video equipment to the … 1 (video input) jacks at

the rear of your TV.

Connecting audio/video equipment using the Ú (monitor output) jacks

Note

• When connecting a monaural VCR, connect the yellow plug to

(the

yellow jack) and the black plug to

-L (MONO) (the white jack).

L(MONO)

ONE-PUSH AUTOMATIC PROGRAMING

Front of TV

Camcorder

Video game equipment

To video and audio outputs

(yellow)

-L (MONO)

(white)

-R (red)

Rear of TV

To antenna output

To video and audio inputs

Audio system

To audio inputs

VCR

:Signal flow

To… 2 (video input)

To Ú (monitor output)

Audio/Video cable (not supplied)

Antenna cable (not supplied)

Audio/Video cable (not supplied)

– 10 –

KV -HF21M50/XF21M80

RM-952

Using Your New TV

Securing the TV

To prevent the TV from falling, secure the TV using one of the following methods:

With the supplied screws, attach the band to the TV stand and to the rear of the TV using the provided hole.

Put the cord or chain through the clamps to secure the TV against a wall or pillar.

Note

• Use only the supplied screws. Use of other screws may damage the TV.

20 mm

3.8mm

Using Your New TV

Presetting channels

You can preset up to 100 TV channels in numerical sequence from program number 1 using the remote and the buttons on your TV as well.

JUMP

SOUND

MODE

FAVORITE

PROGRÁ

Number buttons

SELECT

. +/–

PROGR +/–

+ or –

PIC MODE

ONE-PUSH AUTOMATIC PROGRAMING

Presetting channels automatically

Press U to turn on the TV.

Press AUTO PROGR.

Note

• During automatic channel presetting, your TV screen will indicate “B/G”,

“I”, “D/K” or “M” for the TV system.

To preset channels automatically from a specified program number

(1) Press SELECT until “AUTO PROGRAM” appears.

(2) Press + or –.

The on-screen display will start flashing.

(3) Press PROGR +/– or the number buttons until the desired program number

appears.

(4) Press + or –.

VHF

LOW

B/G

– 11 –

KV-HF21M50/XF21M80

RM-952

Using Your New TV

To change the color system setting

If the color is abnormal when receiving programs through the ˘ (antenna) terminal or the … (video input) jack

(1) Press SELECT until “COL SYS” appears.

(2) Press + or – to select the appropriate color system until the color is optimal.

Tip

• Normally set “COL SYS” to “AUTO”.

Presetting channels (continued)

AUTO

PAL SECAM

NTSC 3.58 NTSC 4.43

COL SYS: AUTO

Skipping program numbers

Press PROGR +/– or the number buttons until the unused or unwanted program number appears.

Press SELECT until “MANUAL PROGRAM” appears.

Press + or –.

Press PIC MODE.

Press SELECT.

To preset the skipped program number again

Preset the channel automatically or manually.

Tip

• You can also use SELECT and . +/– on the TV to preset channels and

skip program numbers.

To use the fine tuning (FINE) function

The fine tuning (FINE) function may help to reduce the following problems: double images and lines moving across the TV screen.

You can use the fine tuning function as below:

1) Select the program number you want to adjust.

2) Press SELECT until “MANUAL PROGRAM” appears on the screen.

3) Press + or – on the remote control once.

4) Press

to display “FINE” on the screen.

5) Press + or – continuously until the above problems are minimized. The + or – icon on the screen flashes while tuning.

6) Press SELECT to return to normal screen.

Using Your New TV

Presetting channels manually

Press SELECT until “MANUAL PROGRAM” appears.

Press + or –.

Press PROGR +/– or the number buttons until the desired program number appears.

Press + or – until the desired channel picture appears.

Press SELECT.

To change the TV system setting

If the picture or sound is abnormal when receiving programs through the ˘ (antenna) terminal

(1) Press SELECT until “TV SYS” appears.

(2) Press + or – to select the appropriate TV system until the picture or sound quality

is optimal.

8 0

-/--

PROGR

SELECT

continued

B/G

I D/K

MANUAL PROGRAM

SELECT

TV SYS: B/G

VHF

LOW

B/G

– 12 –

KV -HF21M50/XF21M80

RM-952

Using Your New TV

Watching the TV

This section explains functions used while watching the TV. Most operations can be done using the remote.

Press U to turn on the TV.

When the TV is in the standby mode (the u indicator on the TV is lit red), press u on the remote or PROGR +/– on the TV.

Press PROGR +/– or the number buttons to select the TV program.

For double digit numbers, press ÷, then the number (e.g., for 25, press ÷, then 2 and 5).

Press . +/– to adjust the volume.

…

;

Number buttons

SELECT

. +/–

PROGR +/–

+ or –

JUMP

SOUND

MODE

FAVORITE

PROGR

SELECT p

PIC MODE

JUMP

FAVORITE

8 0

-/--

PROGR

continued

ONE-PUSH AUTOMATIC PROGRAMING

Using Your New TV

Turn off temporarily

Turn off completely

Mute the sound

Watch the video input (VCR, camcorder, etc.)

Jump back to the previous channel

Display the on-screen information*

Adjust the volume of each TV program automatically

Do this

Press u. The u indicator on the TV lights up red.

Press U on the TV.

Press ¤.

Press …

to select “VIDEO 1” or “VIDEO 2”.

To return to the TV program, press ;.

Press JUMP.

Press

Press SELECT repeatedly until “INTELLIGENT VOL” appears, then press + or – to select “ON”.

To cancel, select “OFF”.

* The picture, sound, and either the program number or video mode are

displayed. The on-screen display for the picture and sound information disappears after about 3 seconds.

Changing the on-screen display language

Press SELECT until “LANGUAGE / : ENGLISH”appears on the screen.

Press + or – to select “ “.

Tip

• You can also use SELECT and . +/– on the TV to select the on-screen

display language.

Additional tasks

Watching the TV (continued)

LANGUAGE / : ENGLISH

SELECT

LANGUAGE / :

– 13 –

KV-HF21M50/XF21M80

RM-952

Using Your New TV

Changing the on-screen display language (For KV-HF21M50)

Press SELECT until “LANGUAGE /

: ENGLISH”

appears on the screen.

Press + or – to select “

“.

Tip

• You can also use SELECT and . +/– on the TV to select the on-screen

display language.

Watching the TV (continued)

LANGUAGE / : ENGLISH

SELECT

/ LANGUAGE:

Using Your New TV

Setting the Wake Up timer

Press until the desired period of time appears.

Select the TV program or video mode you want to display when you wake up.

Press u or set the Sleep timer if you want the TV to turn off automatically.

The

indicator on the TV lights up orange.

To cancel the Wake Up timer

Press

until “WAKE UP TIMER: OFF” appears or turn off the

TV’s main power.

Notes

• The Wake Up timer starts immediately after the on-screen display disappears.

• If no buttons or controls are pressed for more than two hours after the TV is turned on using the Wake Up timer, the TV automatically goes into the standby mode. To continue watching the TV, press any button or control on the TV or the remote.

Setting the Sleep timer

Press

until the desired period of time appears.

To cancel the Sleep timer

Press until “SLEEP TIMER: OFF” appears or turn the TV off.

WAKE UP TIMER:10M

WAKE UP TIMER:OFF

WAKE UP TIMER:12H00M

After 10 minutes

No Wake Up timer After 12 hours

SLEEP TIMER:30M

SLEEP TIMER:60M

SLEEP TIMER:OFF

SLEEP TIMER:90M

After 30 minutes

No Sleep Timer

After 60 minutes

After 90 minutes

– 14 –

KV -HF21M50/XF21M80

RM-952

Advanced Operations

SOUND MODE

Customizing the picture and sound

You can customize the picture and sound by selecting the picture and sound modes or by adjusting its settings.

You can change the sound effect by selecting the surround mode.

Selecting the picture and sound modes

To select the picture mode

Press PIC MODE repeatedly until you get the desired picture mode.

Select To

DYNAMIC receive high contrast pictures.

STANDARD receive normal contrast pictures.

SOFT receive mild pictures.

To select the sound mode

Press SOUND MODE repeatedly until you get the desired sound mode.

Select To

DYNAMIC listen to dynamic and clear sound that emphasizes the low and

high sound.

DRAMA listen to sound that emphasizes vocals and background music.

SOFT receive soft sound.

PIC MODE

SOUND

MODE

FAVORITE

PROGRÁ

SELECT + or –

≥ DYNAMIC

≥ DRAMA

≥ SOFT

SOUND

MODE

STANDARDDYNAMIC

SOFT

PIC MODE

Advanced Operations

Adjusting the picture and sound settings

Press SELECT until the desired setting appears.

Each time you press SELECT, the setting item will change as follows:

Press + or – to adjust the item.

To adjust other items, repeat steps 1 to 2.

* “HUE” can be adjusted for the NTSC system only.

Notes

• When you select a picture or sound mode, the adjusted settings will be reset according to the selected mode.

• You can also use SELECT and

+/– on the TV to adjust the sound and

picture settings.

Selecting the surround mode

Press SELECT repeatedly until “SURROUND” appears.

Press + or – to select the desired surround sound.

Select To

MOVIE listen to sound that spreads out over a large area, giving the feeling

of being at a movie theatre.

MUSIC listen to the sound that gives the feeling of being at a live concert.

OFF turn off the surround sound.

MUSICMOVIE

OFF

SURROUND: MOVIE

SELECT

Advanced Operations

SELECT

PICTURE 60

PICTURE COLOR BRIGHT

HUE*

BALANCE TREBLE

BASS

SHARP

– 15 –

KV-HF21M50/XF21M80

RM-952

Advanced Operations

Viewing your favorite channels

You can display six of your favorite channels for quick and easy selection. You can change the favorite channel setting as well.

Selecting a favorite channel

Press FAVORITE.

Press the number button from 1 to 6 to select the desired channel.

When you use the FAVORITE CH feature for the first time, six preset channels will appear.

Changing the favorite channel setting

Press SELECT until “FAVORITE CH SET UP” appears.

Press + or – to select the favorite channel you want to change (e.g. 3 PR03).

Press PROGR +/–, or number buttons to change the program number.

Repeat steps 2 and 3 to set other favorite channels.

Press SELECT.

JUMP

SOUND MODE

FAVORITE

PROGRÁ

FAVORITE

+ or –

PROGR +/–

Number buttons

FAVORITE CH

1. PR01 2.PR02 3.PR03

4. PR04 5.PR05 6.PR06

FAVORITE

FAVORITE CH SET UP

SELECT

1. PR01 2.PR02 3.PR03

4. PR04 5.PR05 6.PR06

1. PR01 2.PR02 3.PR03

4. PR04 5.PR05 6.PR06

FAVORITE CH SET UP

8 0

-/--

PR01

PR02PR08

PR04 PR05 PR06

1.2.3.

4.5.6.

FAVORITE CH SET UP

PROGR

Advanced Operations

Blocking the channels (CHILD LOCK)

You can prevent a child from watching certain programs by using the buttons on the remote control.

Select the TV program you want to lock.

Press SELECT until “CHILD LOCK” appears on the screen.

Press + or – to select “ON”.

The

symbol appears on

the screen.

To unlock the channel, press + or – to select

“OFF”. The

symbol

disappears from the screen.

Note

• If you preset a locked channel, that particular channel will be unlocked automatically.

JUMP

SOUND

MODE

FAVORITE

PROGRÁ

SELECT

+ or –

CHILD LOCK: OFF

SELECT

CHILD LOCK: ON

– 16 –

KV -HF21M50/XF21M80

RM-952

Additional Information

ONE-PUSH AUTOMATIC PROGRAMING

Additional Information

Self-diagnosis function (For KV-XF21M80)

Your TV is equipped with a self-diagnosis function. If there is a problem with your TV, the u indicator flashes red. The number of times the u indicator flashes indicates the possible causes.

Check that the u indicator flashes red a number of times between 3-second intervals.

Count the number of times the u indicator flashes.

Press U (main power) to turn off your TV.

Inform your nearest Sony service center about the number of times the u indicator flashes. Be sure to note the model name and serial number located on the rear of your TV.

Front of TV

u indicator

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KV-HF21M50/XF21M80

RM-952

Additional Information

Troubleshooting Shortcuts

(For KV-HF21M50)

For better viewing, please check the following connections.

• Snowy • Distorted • Noisy/ picture picture distorted

sound

Wall antenna terminal

UHF

VHF

Booster

VCR

Check the antenna direction.

Incorrect antenna direction may cause:

Check the antenna type.

Wrong type of antenna may cause:

• No picture

• Snowy picture

Check connection on the wall antenna terminal.

Loose connection may cause:

•

Snowy picture

• Distorted sound

Check if you need booster to increase signal level.

Too strong signal level may cause:

•

Distorted picture

• Noisy sound

Antenna connection

Additional Information

Connection

to TV

Check connection on the VCR and on the TV.

Loose connection may cause:

• Snowy picture

• Distorted sound

• No picture

For more information, please see “Troubleshooting” on page 20, 21 and 22 or consult your dealer for guidance.

AC Connection

Check connection on the AC socket.

Loose connection may cause:

• no power

• no picture with no sound

• Double image picture

Additional Information

KV -HF21M50/XF21M80

RM-952

– 18 –

Additional Information

Snowy picture

Noisy sound

Distorted picture

Noisy sound

Good picture

Noisy sound

No picture

No sound

Troubleshooting

If you find any problem while viewing your TV, please check the following guide. If any problem persists, contact your Sony dealer .

Possible causeSymptom

Solutions

•

Check the antenna cable and connection on the TV, VCR and on the wall. (page 4)

• Press SELECT until “MANUAL PROGRAM” appears on the screen then preset the channel again. (page 9)

• Check the antenna type (VHF/UHF). Contact a Sony dealer for advice.

• Adjust the antenna direction. Contact a Sony dealer for advice.

• Try using a booster.

• Turn off or disconnect the booster if it is in use.

• If the sound of all the channels are noisy, check the TV system (TV SYS) setting (page 9), then press AUTO PROGR to preset the channels again. (page 8)

• If the sound of some channels are noisy, select the channel, then select the appropriate TV system (TV SYS). (page 9)

• Check the power cord, antenna and the VCR connections.

• Press u (power).

• Press U (main power) on the TV to turn off the TV for about five seconds, then turn it on again.

• Connection is loose or the cable is damaged.

• Channel presetting is inappropriate or incomplete.

• The antenna type is inappropriate.

• The antenna direction is inappropriate.

• Signal transmission is low.

• Broadcast signals are too strong.

• The TV system setting or channel presetting is inappropriate or incomplete.

• The power cord, antenna or VCR is not connected.

• The TV is not turned on.

continued

Additional Information

Troubleshooting (continued)

Possible causeSymptom

Solutions

• Press ¸ + to increase the volume level.

• Press ¤ to cancel the muting.

• Do not use a hair dryer or other equipment near the TV.

• Adjust the antenna direction for minimum interference. Contact a Sony dealer for advice.

• Use a highly directional antenna.

• Use the fine tuning (FINE) function. (page 10)

• Adjust the antenna direction. Contact a Sony dealer for advice.

• Turn off or disconnect the booster if it is in use.

• Press SELECT until “COLOR” appears on the screen, then press + or – to adjust the color level. (page 15)

•

Press SELECT until “COL SYS ” appears on the screen, then check the color system setting (usually set this to “AUTO”). (page 10).

• Adjust the antenna direction. Contact a Sony dealer for advice.

• Keep external speakers or other electrical equipment away from the TV. Do not move the TV while the TV is turned on. Press U (main power) on the TV to turn off the TV for about five minutes, then turn it on again.

•

The volume level is too low.

• The sound is muted.

• There is local interference from cars, neon signs, hair dryers, power generators, etc.

• Broadcast signals are reflected by nearby mountains or buildings.

• The antenna direction is inapproprite.

• Use of a booster is inappropriate.

• The color level setting is too low.

• The color system setting is inappropriate.

• The antenna direction is inapproriate.

• The magnetic disturbance from external speakers or other equipment, or the direction of the earth’s magnetic field may affect the TV.

Good picture

No sound

Dotted lines or stripes

Double images or “ghosts”

No color

Abnormal color patches

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KV-HF21M50/XF21M80

RM-952

Additional Information

Possible causeSymptom

Solutions

• Use the fine tuning (FINE) function. (page 10)

• Contact your nearest Sony service center.

—

• There is interference from external sources, e.g., heavy machineries, nearby broadcast station.

• Your TV may need service.

• Changes in room temperature sometimes make the TV cabinet expand or contract, making a noise. This does not indicate a malfunction.

• The TV’s demagnetizing function is working. This does not indicate a malfunction.

Lines moving across the TV screen.

The

(standby) indicator on your TV flashes red for about 3 seconds per interval.

TV cabinet creaks.

A “boom” sound is heard when the TV is turned on.

Additional Information

Identifying parts and controls

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

Front panel

1U (main power) button (11) 2 PROGR +/– (program) buttons (11) 3

+/– (volume) buttons (11)

…

(TV/video) button (12)

5 AUTO PROGR (program) button (5) 6 SELECT button (10) 7

(headphone) jack

ONE-PUSH AUTOMATIC PROGRAMING

ONE-PUSH AUTOMATIC PROGRAMMING

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KV -HF21M50/XF21M80

RM-952

+ 44 hidden pages

Sony KV-HF21M50, KV-XF21M80 Service Manual

SPECIFICATIONS

TABLE OF CONTENTS

SELF DIAGNOSTIC FUNCTION

GENERAL