SONY KV21MB40C
Service Manual

KV-[13M40/50/51], KV-[14MB40/40C/40A], KV-[20M40/S40/S41/V80], KV-[21SE40/40A/40C/80/80A/80C], KV-[21MB40C/40M/40P], KV-[21ME40/40P], KV-[21SB40/40M/40P], KV-21XT4A

SECTION 1-1 GENERAL
The instructions mentioned in this section are partial abstracts from the Operating Instruction Manual. The pages numbers shown reflect those of the Operating Instruction Manual.

Warnings and Cautions
To prevent fire or shock hazard, do not expose the TV to rain or moisture. � If any liquid or solid object falls into the TV, unplug it and have it checked by qualified personnel before operating it further. � Unplug the TV from the wall outlet 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. For more safety information, see the �IMPORTANT SAFEGUARDS� leaflet packed with your TV. Protecting the TV � To prevent internal heat build-up, do not block the ventilation openings. � Do not install the TV in a hot or humid place, or in a place subject to excessive dust or mechanical vibration. Note on CAPTION VISION This television receiver provides display of television closed captioning in accordance with § 15.119 of the FCC rules. Note to CATV System Installer Article 820-40 of the NEC that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical. Use of this television for other than private viewing of programs broadcast on UHF or VHF or transmitted by cable companies for the use of the general public may require authorization from the broadcaster/cable company and/or program owner.

Step 1: Connecting the TV
The following steps guide you through your initial set up. Check the model number of your TV (located on the front of this manual) and select the appropriate diagram.

Step 2: Using the Remote Control
Connecting a VCR
See your VCR instructions to set up the VCR. After connecting the VCR to the TV, you will be able to do the following: � Watch video tapes � Record one TV program while viewing another
Notes � If your cable system requires the use of a cable box, install it between the cable and the VCR. � For a monaural VCR, connect the audio output of the VCR to the AUDIO L (MONO) on the TV.
Cable Box Antenna/ Cable Antenna/ Cable
VHF/UHF IN VHF/UHF OUT

Connecting a VCR � Connecting a Camcorder � Using the Remote Control � Inserting Batteries � Remote Control Operation Buttons

Inserting Batteries
Insert two size AA (R6) batteries (supplied) by matching the + and � on the batteries to the + and � inside the battery compartment. With normal use, the batteries should last for approximately six months.

Connecting an Indoor, Outdoor or Cable Antenna
This connection offers the best picture quality. Connection is made directly from the cable or antenna to the TV. A
VHF only or VHF/UHF or Cable 75-ohm coaxial cable VHF/UHF

This symbol is intended to alert the user to the presence of uninsulated �dangerous voltage� within the product�s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

If you cannot connect your antenna or cable directly to the TV antenna terminal, follow one of the diagrams below. B
VHF only or UHF only or VHF/UHF 300-ohm twin lead cable VHF/UHF

VCR

S-VIDEO

LINE OUT AUDIO-R AUDIO-L VIDEO VHF/UHF

TV

AUDIO

VIDEO (yellow)

Notes � Remove the batteries to avoid possible damage from battery leakage if you will not be using the remote control for an extended period of time. � Handle the remote control with care. Avoid dropping it, getting it wet, or placing it in direct sunlight, near a heater, or where the humidity is high.

8 �

This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. CAUTION When using TV games, computers, and similar products with your TV, keep the brightness and contrast functions at low settings. If a fixed (non-moving) pattern is left on the screen for long periods of time at a high brightness or contrast setting, the image can be permanently imprinted onto the screen. Continuously watching the same channel can cause the imprint of station logos onto the TV screen. These types of imprints are not covered by your warranty because they are the result of misuse. You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment. Safety Precautions � Operate the TV only on 120 V AC. � One blade of the power plug is wider than the other for safety purposes and will fit into the power outlet only one way. If you are unable to insert the plug fully into the outlet, contact your dealer. TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC PLUG UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.

Antenna connector (Supplied for KV-13M40, 13M50, 13M51 only)

(black)
VIDEO 1 IN S-VIDEO AUDIO OUT

Remote Control Operation Buttons
In the instructions that follow, please refer to the buttons on your remote control. The remote control shown is model RM-Y155.
MUTING SLEEP POWER

C
VHF

75-ohm coaxial cable
R-AUDIO-L(MONO) VIDEO R L

AUDIO (black)
and EAC-66 U/V mixer (not supplied) UHF 300-ohm twin lead cable VHF/UHF

VIDEO (yellow) Video Cable (not supplied)

For models with mono inputs (KV-13M40, 13M50, 13M51, 20M40)

AUDIO-R AUDIO-L VIDEO (red) (white) (yellow)

AUDIO-R AUDIO-L VIDEO (red) (white) (yellow)

Video Cable (not supplied)

For models with stereo inputs (KV-20S40, 20S41)

MUTING (page 9) SLEEP (page 10) MTS (page 14) (RM-Y155 only)

TV (POWER) TV/VIDEO (page 9) DISPLAY (page 9) 0�9 buttons

MTS

Connecting to a Cable TV System Through a Cable Box
Some pay cable TV systems use scrambled or encoded signals that require a cable box* to view all channels.
Cable VHF/UHF

Connecting a Camcorder
JUMP (page 9)

JUMP

ENTER

ENTER MENU SELECT

All models except KV-13M40 Use this connection to view a video tape from a camcorder.
(Front AV Panel)
VIDEO L(MONO)-AUDIO-R

> or . select buttons
RESET

MENU

SELECT

RESET (page 12, 13)
VOL CH

IN

OUT

VIDEO 2 INPUT

To audio outputs

VOLUME

CH +/�

Warnings and Cautions the TV an Antenna � Connecting a Cable Box

*Cable box

VIDEO (yellow)

AUDIO R (red) AUDIO L (white) Cable (not supplied) To video output

RM-Y155

Model number

Note � If you will be controlling all channel selection through your cable box, you should consider using the CHANNEL FIX feature discussed on page 11.

TV

Notes � For a monaural camcorder, connect the audio output of the camcorder to AUDIO L (MONO) on the TV. � If you are connecting your camcorder to a monaural TV (KV-13M50, 13M51, 20M40 only), plug the white audio connector into the AUDIO-L input on the TV. � You can also connect a camcorder to inputs on the rear of the TV (all models).

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