BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
OVERVIEW
CON2K6
K
A
A
K
SVM COIL
Interconnect Diagram
The FA chassis was developed for consumer market purpose. This manual covers 27v True Flat CRT only. The
chassis is divided in two sections, the large signal board
is containing the deflection, dynamic focus, power supply circuitry & shutdown circuit. A second board, located on the left side of the figure, is employed for
processing the RF, audio, communication (main BUS),
deflection, IF and video signals, this chassis does not
require any other daughter board.
The Analog Flat chassis features a total of 9 IC’s on the
small signal board, for RGB signal, video switching, (HV
sync signal processing included). This chassis only supports the NTSC-U (USA) video format and this is made
trough the IC2200, P221-01519, main video processor
located on the middle of the small signal board, which is
taking care of the IF, AGC, OSD switching, YUV processing, Automatic Contrast Level Control Systems, SVM support, Audio/ Video & Chorma demodulation, including
Horizontal (East/West correction & X-ray protection) and
Vertical deflection signals. The IF signal come from the
WT1201, which is the main tuner.
A relationship between IC2200 and IC2990, P221-01438,
is linked, this last one is used for switching the video
signal inputs from the Front and Rear jacks. Also involved is the digital comb filter IC2400, 221-01449,
which is used to separate the Y and C signals from any
composite video (RF or Video In). The YUV input is processing directly through the IC2200.
The audio channels are applied to the audio processor
IC1400, 221-01127. The IC1400 is also processing the
TV- RF composite audio, this IC features function such
audio demodulation, SAP (second audio program), and
the audio processing for BASS, TREBLE and BALANCE adjustments, also includes the Surround and Soundrite features.
Once the audio is processed by IC1400, both channels
are applied to the main stereo amplifier. The IC800, P2211488, is the final audio stage and its signal is applied
to the speakers.
1-1FA - GENERAL
OVERVIEW
ANTENNA
CABL E
MATRIX OUT
The IC6000 is the 8 bits & 80K microcontroller and the
IC6001, 221-00745-05, is the EAROM memory. The
IC6000 handles the communication thru IIC BUS, I/O
ports, ADC converters for the keyboard, also supplies the
OSD signals for the On screen menus and the Close Caption decoding.
The main board is using three main linear regulators for
providing several voltage sources, the ICX3821 [5VSW]
for Tuner and IC2200 , ICX3820 [5VSB] for the IC6000/
1 and ICX3822 [9VSW] for most of the rest of IC’s. The
VSW stand for SWITCHED VOLTAGE, these regulators contain an internal power switch to turn them on/off, from
a Power Control signal provided by the IC6000.
Finally the main board has a provision for an additional
IC, for switching the YUV inputs. The objective of this
IC2902 is for adding an extra YUV input. This circuit
will be available for a future model.
RPrPb
Y
S-VIDEO OUT
L
COMPONENT VIDEO I NPUT
VIDEO IN
S-VIDEO IN
R AUDIO IN L
R AUDIO IN L
R AUDIO IN L
On the large signal module there are five IC’s , the ICX3612
is the main power switching and PWM hybrid circuit and
in conjunction with ICX3702 made the main power regulation of this chassis. The purpose of this regulator is to
provide a proper protection for avoiding to shut the
main power supply off and therefore the complete TV set.
And of course, avoid the necessity of fuse replacement
due to a short circuit on the third party TV card.
The ICX2100 is the Vertical output amplifier and is processing the small signal provided by the IC2200 on the
small signal board. Also the IC3300 is processing the
EAST/WEST correction for the screen geometry.
Finally The IC5100 is used to amplify the RGB small signals from the IC2200 and then display them on the CRT
cathodes.
Shows Channel/Time, enters
channel, or removes any
on-screen menus.
QUIT/ (Three Functions Key)
It doesn’t function in commercial TV.
UP and DOWN ARROWS
Moves highlighted bar within
menu to select an option.
CC
Displays closed caption menu.
TV/VCR SOURCE
Steps through source options.
MBR3447LG
124-00233-P09
PROGRAMMING THE REMOTE
If you’re using Zenith products, the remote is already programmed for most common codes: TV= 101, VCR= 201,
CABLE=353, and AUX=401. For other brands, or if your
remote fails to control your Zenith products, you’ll have
to program the remote.
After installing the batteries, follow these steps for each
product:
1. Press and hold PRG using a blunt pointed object.
Release PRG after the indicator light turns on.
2. Press the device button to be programmed (CATV,
VCR, AUX, or TV).
3. Enter the 3-digit product code from chart on the
next page.
4. Press and release ENTER to save the code.
5. Point the remote at product and press POWER to
test the product’s operation. If it does not turn on,
reprogram remote using a different code.
6. Write the code on the label inside the battery
compartment for future reference.
1-3 FA - REMOTES
REMOTE PROGRAMMING
AUTO FIND
If none of the codes in the code table operate your equipment, use Auto Find to search for the proper code.
1. Turn on the product you want to operate.
2. Press and hold PRG using a blunt pointed object.
Release PRG after the indicator ligth turns on.
3. Press any key to be programmed
4. Enter ”000”, then press ENTER within two seconds.
Auto Find is active after the indicator light flashes
and remains lit.
5. Point the remote at the product.
6. Press and release POWER repeatedly, about once a
second, until your products turns off. The indicator
light turns off when you press POWER and on when
you release it.
7. Press ENTER immediately to save the code. The
indicator light flashes to indicate the code has been
saved.
8. Press POWER to turn On your product.
9. Test your product. If the remote fails to operate
some of the basic functions, use Auto Find again to
search for a better code. (Auto Find resumes its
search after the last code that was entered and
saved in step 7).
NOTE: If the indicator light stays on as you press POWER,
Auto Find has tried all of the codes. If the product
you want to control has not turned off, your
remote will not work with that product. To cancel
Auto Find, press PRG at any time during Auto
Find.
CABLE BOX
This remote can control the cable/converter box volume
and muting (instead of the TV’s) is available on your
equipment.
1. Program the cable/coverter box normally.
2. After programming the cable/converter box. Press
and hold PRG again using a blunt pointed object.
Release PRG after the indicator light turns on.
3. Press and release the device button the cable box is
assigned to.
4.This time, enter the special code 3-9-9 instead of
the product code.
5. Press and release ENTER to save.
(CAT, VCR, AUX, or TV).
VOLUME OVERRIDE
These remotes can override TV, VCR, or Video Disk
Player volume functions with an amplifier’s volume and
muting.
1. Program the amplifier normally.
2. After programming the amplifier, Press and hold PRG
again using a blunt pointed object. Release PRG
after the indicator light turns on.
3. Press and release the device button whose volume
control is to be replaced by the amplifier volume
control. For example, pressing TV will operate the
amplifier’s volume while the remote is in TV mode.
4. This time, enter the special code 4-9-9 instead of
the product code.
5. Press and release ENTER to save.
AUXILIARY CAPABILITY
This remote can control up to seven devices. If the
remote has been programmed for four components
using the TV, VCR, CABLE, and AUX keys, you may also
program it for up to three additional using AUX+1,
AUX+2 and AUX+3
To Program AUX+1, AUX+2 AND AUX+3
1. Locate three digit code for product in code table.
2. Press and hold PRG until indicator lights up
3. Press the AUX and 1 simultaneously to select
AUX+1.
4. Enter the three-digit code and press ENTER. The
indicator light should flash and then turn off to
indicate the code has been accepted. If the light
stays on, repeat steps 3 and 4 or try a different
code.
5. Repeat steps 2-4 for AUX+2 and AUX+3.
6. Write the codes on the labels inside battery
compartment for future reference. Hold down AUX
and press 1,2 or 3 to access AUX+1, +2 or +3
mode.
UNIVERSAL ERASER 911
To restore the transmitter back to its initial default
settings, enter the Programming Mode as usual (by
holding PRG until the LED indicator lights), and press 9
1 1, followed by ENTER. The LED indicator will flash
three times to indicate that the transmitter has
returned to its initial default brand codes. Universal
Erase will work in any mode.
Below is the Channel Menu for the FA chassis with each
of its options.
EZ PROGRAM
The EZ Program feature automatically searches for all available channels and marks them as ‘Added’ so that they
may be accessed via the channel Up/Down key.
CHANNEL
EZ Program
Add/Del/Surf
EZ Clock
Captions
Caption/T
Language
Source
MOVE NEXTEXIT
In the EZ Program option, the current RF input type (Off
Air Antenna or Cable TV) is highlighted. Use the Up/
Down Arrow keys to change the RF input type.
To start the EZ Program, press the Right Arrow key. If the
Cable TV input type is selected, the EZ Program routine
will determine what type of cable system is present.
ext
ENTER
ADD/DEL/SURF
After running the Auto Program, all channels found by
the Auto Program feature will be marked ‘Added’. However, some of these channels may be scrambled, or undesired by the customer. The Add/Del/Surf feature allows the customer to selectively mark any channel as
‘Deleted’ or ‘Added’.
To change the status of a channel, press the Up/Down
Arrow keys.
To change the channel while adding or deleting channels, use the Channel Up/Down keys, or press the desired channel digits, followed by the ENTER key. If only
one channel is present, to change the channel the customer must use the digit keypad to select a channel.
EZ CLOCK
When the EZ Clock item is selected, pressing the Right
Arrow key allows entry into the clock set menu.
CLOCK
Clock Mo de
Time Set
MOVE MOVE NEXTNEXTBACKBACK
Manual
Manual
Auto
ENTERENTER
Notes:
• EZ Program clears all Surfing channels, which were
added.
• While searching for channels, all keys except for the
Power key are disabled. This prevents an incomplete
EZ Program procedure.
• Running the Auto Program will clear the factory mode,
if it was active. This happens at the end of the EZ
Program.
• If the EZ Program line in the Setup Menu is ‘red’, this
indicates that the module did not pass by Chassis.
When ‘green’, this indicates that the module did not
pass by Tracking. When ‘blue’, this indicates that the
module did not pass by Programming. To clear this
line to ‘white’, set the upper nibble of the EEPROM
location $1FFh to $B0h.
• If no channels are found then the following message
will appear: “Make sure that the cable/ant. is
connected, and try again.”
DAYLIGHT SAVINGS TIME
The customer also has the option of selecting the Daylight Savings Time to be On, Off or Auto using the Left/
Right Arrow keys.
CAPTIONS
This feature allows the customer to select: Off, On, or EZ
when Muted options.
To change the status of captions, press the Left/Right
Arrow key to select either On, Off, or EZ Mute.
CAPTION/TEXT
This feature allows the customer to activate or
desactivate Captions or Text.
Pressing the Left/Right Arrow keys sequentially through
each of the following Caption/Text options.
Caption 1 Caption 2Caption 3Caption 4
Text 1 Text 2 Text 3Text 4
1-6FA - MENUS
USER MENUS P221-01524-00 (continued)
Notes:
• When the Text option is selected and a text box
appears, if the CC key is pressed, the Caption box
that allows setting to On, EZ Mute or Off will appear,
• When captions are being displayed, if one of the
Volume Up/Down keys is pressed, the volume bar will
not appear.
• When the Captions are not activated and the CC key
is pressed, the Caption Box will appear, that allows
choose On, EZ Mute or Off.
LANGUAGE
This feature allows the customer to change the menu
language to English, Spanish or French by pressing the
Up/Down Arrow keys.
SOURCE
This feature allows the customer to select: Antenna, Rear
Video, Rear-SV, Front Video, or Comp. Video.
PICTURE MENU
All menu items are adjusted with the Left/Right Arrow
keys.
COLOR TEMP
Sets the color temperature. The two settings are COOL
and WARM.
EZ PICTURE
This feature allows the customer to maintain 8 separate
Contrasts, Brightness, Color, Tint, Sharpness by setting
“Custom, Normal, Movie, Digital, Video Game, Sports,
Night Time, Weak Signal”.
SOUND MENU
All menu items are adjustment with the Left/Right Arrow
keys.
SOUND
Bass
Treble
Balance
Audio mode
Front Surr
EZ Soundrite
EZ Sound
MOVE NEXTEXIT
ENTER
PICTURE
Contrast
Brightness
Color
Tint
Sharpness
Color Temp
EZ Picture
MOVE NEXTEXIT
ENTER
CONTRAST
Contrast adjustment has 101 steps (0 to 100).
BRIGHTNESS
The brightness value sent to the video processor is (RfBrt
+ Customer Brightness) if the source is the RF source, or
(AuxBrt + Customer Brightness) if the source is the AUX
source. RfBrt and AuxBrt appears in the factory menu.
COLOR
Color adjustment has 101 steps (0 to 100). The color
value sent to the video processor is according to the
next equation and look up table.
TINT
Tint Adjustment has 101 steps (0 to 100). A center
mark indicates step 50. The tint value sent to the video
processor is (custom Tint + TintOffset)*127
SHARPNESS
Sharpness adjustment has 101 steps (0 to 100).The sharpness value is sent to the video processor as (Custom
Sharpness).
BASS
Bass adjustment has 101 steps (0 to 100).
TREBLE
Treble adjustment has 15 steps (0 to 14).
BALANCE
Balance adjustment has 29 steps (0 to 28).
AUDIO MODE
There are three audio modes available: Mono, Stereo, 2
Audio/SAP.
If 2nd Audio/SAP is selected, but the current channel
does not support SAP, then either Stereo or Mono will
be heard.
FRONT SURR
Front Surround can be set ‘ON’ or ‘Off’, regardless of the
current Audio Mode setting. However, the Front Surround effect can only be heard when the Audio Mode
has been set to ‘Stereo’ and a Stereo signal is present.
When this condition exists, there will be a short mute
(200ms) while toggling the Surround ‘On’ to ‘Off’, to
embellish Front Surround activation.
nd
1-7 FA - MENUS
USER MENUS P221-01524-00 (continued)
EZ SOUNDRITE
The Sound Rite feature is used to obtain a uniform volume level, particularly while changing channels. The
Sound Rite feature can be best demonstrated on a channel with no signal (snow).
EZ SOUND
The EZ Sound Control has six selections the customer
can select. The selections available are: Custom, Normal,
Stadium, News, Music and Theater. The Left/Right Arrow
keys may be used to select any of the choices mentioned.
LOCK MENU
As show above, with the Lock Menu on-screen, use the
Up/Down arrow to highlight an option Like Content Blk,
then press ENTER.
Use the Up/Down/Left/Right arrows to select and adjust or set the rating for an option. For Sex Scenes for
example , use the “From TV-PG” setting. (See the Mini
Glossary, Ratings Charts on this and the previous page
for rating definitions).
LOCK
Aux Sources
MPAA
Age Block
Content Blk
Cdn. Ratings
Set Hours
Set Password
Lock On/Off
MOVE NEXTEXIT
AUX SOURCES
To Block or Unblock the sources, press the Up/Down Arrow keys.
The SOURCE key may be used to view the other source.
MPAA
The MPAA selector allows the customer to select either
to have the channel Unblocked, G and Above, PG and
Above, PG-13 and Above, R and Above, NC-17 and Above,
or X.
AGE BLOCK
Use the Right Arrow key to select the Age Block Menu.
Once entered into the Age Block Menu, the customer
has the option to block channels for general age or to
block channels for children.
ENTER
GENERAL BLOCK
To block channels for a general age, the customer may
either select: Unblocked, TV-G and Above, TV-PG and
Above, TV-14 and Above or TV-MA.
AGE
General
General
Children
MOVE NEXTBACK
Unblocked
TV-G
TV-PG
TV-14
TV-MA
ENTER
CHILDREN BLOCK
To block channels for children, select either: Unblocked,
TV-Y and Above or TV-Y7.
CONTENT BLOCK
To block a television program according to its content,
use the Right Arrow key to select the Content Block Menu.
CONTENT
Dialog
General
Language
Violence
Sex Scenes
F Violence
No Rating
MOVE NEXTBACK
Unblocked
TV-PG
TV-14
ENTER
DIALOG BLOCK
To block a television program with Dialog rating, use the
Up/Down Arrow keys to select either: Unblocked, TV-PG
and Above or TV-14.
LANGUAGE BLOCK
To block a television program with Language rating, use
the Up/Down Arrow keys to select either: Unblocked,
TV-PG and Above, TV-14 and Above, or TV-MA.
VIOLENCE BLOCK
To block a television program with Violence rating, use
the Up/Down Arrow keys to select either: Unblocked,
TV-PG and Above, TV-14 and Above, or TV-MA.
SEX SCENES BLOCK
To block a television program with Sex Scenes rating,
use the Up/Down Arrow keys to select either: Unblocked,
TV-PG and Above, TV-14 and Above, or TV-MA.
FA - MENUS 1-8
USER MENUS P221-01524-00 (continued)
F VIOLENCE BLOCK
To block a television program with F Violence rating, use
the Up/Down Arrow keys to select either: Unblocked,
TV-Y7.
NO RATING BLOCK
To block a television program with No Rating , use the
Up/Down Arrow keys to select either: Unblocked and
Blocked.
CANADIAN RATINGS
Use the Right Arrow key to select the Content Block,
and use the Left/Right Arrow keys to select the Cnd.
English or Cdn. French.
CDN. RATINGS
Cdn. English
General
Cd. French
MOVE NEXTBACK
Exempt
Children
8+
General
PG
14+
18+
ENTER
SET HOURS
Use the Up/Down Arrow keys to adjust the number of
hours the Parental Control feature will be active. The
valid hour range is 1 through 99 hours.
SET PASSWORD
Press the Right Arrow key to allow Password entry.
TO ENTER PASSWORD
The software accepts four-digit codes only. The customer must enter a password
RE-ENTERING PARENTAL CONTROL MENU
If the Parental Control feature has been activated,
the software will not allow immediately entry into
the Parental Control Menu. Instead, it will prompt
for the correct password. If the correct password is entered, the Parental Control menu will
be unlocked so the user can change the configuration for parental options. If an incorrect
password is entered, an error message (“Not Accepted!) appears, and will not disappear until 5
seconds. This extended time provision increases
the amount of time necessary for a child to “crack”
the password.
Notes:
• The Parental Control menu will remain up for
15 seconds after the last key press.
• The QUIT key may be pressed to remove the PC
menu.
• Entry into the Factory Menu will immediately
turn off the PC feature
• The PC Hours and Password will be cleared
upon exit of the Parental Ctrl menu (unless
the Parental Ctrl feature has been turned on.)
DISPLAY WHEN PARENTAL CONTROL IS ACTIVE
When the Parental Control has been activated
the channel is blocked. The display on the screen
shows two lines. The first line displays a message saying that the “PARENTAL LOCKOUT IS ACTIVE.”
The second line displays the amount of time (in
hours) left in the lockout.
REPEAT PASSWORD
After a four-digit code has been entered, the software
requires the customer to re-enter the same four-digit
code.
PASSWORD NOT ACCEPTED!
If an invalid code is entered, or the two codes entered
do not match, a blinking error message (“Not Accepted!”)
will appear. This error message also appears when no code
is entered for the password or if only one digit is entered and no other digit has been entered.
LOCK ON/OFF
This item turns the Parental feature On or Off. The Parental Ctrl. feature can only be turned on if the hours >
0, and a password has been set. Otherwise the Lock On/
Off line will display either of the following error messages: “Must Set Hours” or “Must Set Password.”
1-9 FA - MENUS
USER MENUS P221-01524-00 (continued)
C
T
YTLC
C
LTMC
C
X
C
XMMT
C
C
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SPECIAL MENU
This Menu contains the EZ Timer , Ch. Labels, XDS Display, EZ Demo and EZ Help.
SPECIAL
EZ Timer
CH. Labels
XDS Display
EZ Demo
EZ Help
MOVE NEXTEXIT
EZ TIMER
The Timer Menu contains the Sleep Timer and the On/Off
Timer features.
SLEEP TIMER
Sleep Timer (via Timer Menu)
The Left/Right Arrows can be used to adjust the current
sleep timer setting:
Off, 0:10, 0:20, 0:30, 1:00, 1:30, 2:00, 3:00 or 4:00
SPECIAL
EZ Timer
EZ Timer
CH. Labels
XDS Display
EZ Demo
EZ Help
MOVE NEXT BACK
ENTER
PRESS
TO SET
CHANNEL LABELS OPTION
This feature allows the customer to select a channel label for the current station. This channel label is displayed in the Channel/Time display. Initially, all channel
labels are set to ‘——‘, which results in no channel being displayed in the Channel/Time display.
CHANNEL LABELS
A&ECMTV ESPNHSENOSTBNVC
AB
ACTSCNNE
AD
AMCCSPN FAMJCNQV
To change the current channel label, press the Up/Down
Arrow key.
To change the channel while adjusting channel labels,
use the Channel Up/Down keys, or press the desired channel digits, followed by ‘Enter’. (If Channel Up/Down is
pressed, the next or previous channel which was marked
‘Added’ will appear.)
ON/OFF TIMER
This feature consists of three menu lines: “On Time”,
“Off Time”, and “On/Off Timer”. This feature allows the
set to turn on and off at the times specified in “On
Time” and “Off Time”.
The “On Time” and “Off Time” are set identical to the
Clock Set feature in the Channel Menu.
An Off Time must be specified, before turning on the “EZ
Timer”—otherwise an error message (“Must Set On/Off”)
will be displayed on the On/Off Timer line.
The On/ Off Timer option turns the Timer On or Off.
If there is no Off Time set, then the On/Off Timer displays the above message saying: “Must Set Off Timer.”
Once the Off timer has been set, the customer can then
set the option to either On or Off.
FA - MENUS 1-10
Note:
• When in the channel label is selected ————, then
the Auto channel label is activated, in other words,
the program automatically take the channel label
of the signal that is send by broadcasting through
the XDS service.
• If the label None is selected, the Auto channel label
is disactivated.
XDS DISPLAY
Pressing the Left/Right Arrow Keys allows the customer
to select the XDS Display either On or Off.
USER MENUS P221-01524-00 (continued)
EZ DEMO
The EZ Demo is designed to show-off the icon menus
and other icon displays on the sales floor. The EZ Demo
feature can be turned On/Off with the Up/Down Arrow
keys.
Initially, when the feature is activated, as soon as the
OSD times out, the EZ Demo will start. At this point,
pressing any key will temporarily disable the EZ Demo for
18 seconds, and if the EZ Demo is working and the Menu
key is pressed then the Special Menu will be displayed
and the EZ Demo feature will be selected allowing the
customer to disable it.
Note:
• The Auto Demo On/Off setting is not stored to the
EEPROM.
EZ HELP
The special features EZ Help option may be accessed using the Right Arrow key. The EZ Help feature provides
help on certain options and also provides support for
the EZ Programm, Add/Surf/Del, Degaussing, EZ Picture
and EZ SoundRite features. There is a simple explanation
of each options.
The EZ Help has a main screen called EZ Help. This screen
gives a solution to the most common problems that a
customer may encounter; i.e., To program channels.
MISC DISPLAYS
SLEEP TIMER
To press the timer key for activate the sleep timer.
The user can choose to activate the timer to turn off the
Television in 10, 20 or 30 minutes or 1, 1:30, 2,3 or 4
hours just by clicking on the sleep timer clock.
VOLUME DISPLAY
When the Volume key is pressed, the following display
appears on the screen.
23
CLOSED CAPTIONS
If the CC key is pressed the following displays appears.
The customer may change the settings of the Closed Captions to Off, On or EZMute
CHANNEL/TIME/AUDIO DISPLAY
Pressing the ENTER Key allows the customer to display
the channel, time audio mode as well as information of
the current program along with the rating of the program.
OFF
1-11 FA - MENUS
FACTORY MENU
INSTALLERS MENU
Access the Installer’s Menu by using the remote control
or the keyboard on the front of the set.
With the remote: Press & Hold MENU key until the
Channel/Time display appears, then press 9, 8, 7, 6, and
ENTER.
With 6 button keyboard: Press and hold MENU until the
Channel/Time display appears. Simultaneously press the
VOLUME UP and CHANNEL DOWN keys.
Notes:
• When the factory mode is set to “1”, then
press ‘9’, ‘8’, ‘7’, and ‘6’, followed by
‘ENTER’ to access the Installer’s Menu.
• To acces the G2 re-adjustment mode, press 2 hold
the Menu key until the Channel/Time display appears,
then press ‘9’, ‘8’, ‘7’, ‘6’, and quit key.
00 Fact Menu: Use the Select key to select item #00,
which is the first item in the Installer’s Menu. The
Factory Mode item should always be left off (Zero is
off). When left in this mode, only items from 0 to 27
are visible. When the factory mode is set to 1, all menu
(Audio or Video settings) items will be available. Also
they will appear on the screen one at a time at the top
left of the screen.
When The Factory Mode is on, the Factory Menu line
appears at the middle of the screen to allow for proper
setting of the video.
When the Factory Mode is turned off, all TV functions
are returned to normal. The simbols at the top of the
channel menu icons is removed indicating that the
Factory Mode is off. There are 4 ways to turn off the
Factory Mode:
1. Change Installer’s Menu Item “00 F Mode” to 0.
2. Run Auto Program.
3. Use the Clock Set feature to set the time.
4. Use Factory off IR code.
Notes:
• Video Preference Settings Inhibited: In the Video
Menu, the Custom Video Preference settings are
inhibited while the Factory Mode is on and will
NOT be stored in EEPROM. (This allows the factory
to temporarily change the settings and not store
them permanently.)
01 Preset Px: Used to store the customer menu adjust-
ments in the nonvolatile memory of the EAROM. Settings for Contrast, Brightness, Color and Tint are
stored in this manner. 0 is Custom and 1 is Preset.
02 Preset Ax: Saves your custom audio settings
(Bass,treble,balance,audio mode,sound rite,front
surr,speaker) in nonvolatile memory (not affected by
power loss). Memory status is indicated by a 1 for
“custom settings already stored”, or 0 for “custom settings have not been stored.”
03 Vert Pos: Sets On Scree Display vertical position. Use
the ADJUST keys.
04 Horz Pos: Sets On Screen Display horizontal position.
Use the ADJUST keys.
05 Band/Afc: There are 8 possible settings for this op-
tion.
06 Ac on: Allows the TV to turn ON just by applying AC
power. Pressing the ON button is not necessary. This
is desirable when the TV is plugged into a cable box
or a power outlet controlled by a wall switch. Use adjust to select 0 or 1, where 0 is OFF and 1 is ON.
Note: When set to 1 (ON), the TV does not respond to
ON/OFF commands from either the remote or the
control panel, and the SLEEP TIMER is also
nonfunctional.
07 Feature Level: Set to 1 to see Zenith Code, when set
to 0 Private Codes are shown.
08 Trap: Turn On 3.58 MHz internal trap in Video Proces-
sor.
09 RF Band Pass Activates the Band Pass Filter for RF
(Antenna) input
10 RF BRT Set Black Level for RF input (Antenna)
11 Aux BRT Set Black Level for Auxiliar input (Video:
Composite & Y/C)
12Yuv BRT Set Black Level for YUV input (Component
Video)
13Max Bright Set maximum internal Brightness Register
14Max Contrast Set maximum internal Contrast Register
15 Vert Size: Vertical amplitude adjustment Variable in
17 Vert Phase: Adjust the Vertical Phase, screen up -
down. Range 0-5. Initial value: 0
18 Horz Phase: Adjust the Horizontal Phase, screen left-
right. Range: 0-31. Initial value: 32
19 Audio Level: Adjust the composite audio level aoutput
of the video processor.
20 RF AGC: Adjust the AGC delay for maximum gain with
a reference level of 0 dBmV.
2-1FA - INSTALLERS MENU
FACTORY MENU (continued)
21 Horz AFC: Set the automatic horizontal frecuency con-
trol on, should be 1.
22 WPL: Activates White Peak Limiter
23 Tint Offset: Set the Tint offset
24Red Cut: Set the Red Cutoff of Low Luminance White
Balance adjustment
25Green Cut: Set the Green Cutoff of Low Luminance
White Balance adjustment
26Blue Cut: Set the Blue Cutoff of Low Luminance White
Balance adjustment
27Green Gain: Set the Green Gain of High Luminance
White Balance adjustment
28Blue Gain: Set the Blue Gain of High Luminance White
Balance adjustment
29Air AFT: Set the AFT when watching air signal.
30 A ATT: Adjust the composite input level to the audio
decoder to have the standard input level.
31 A VCO: Adjust Stereo VCO and SAP VCO free running
frequency.
32 A Filter: Adjust the filter for Stereo, SAP and DBX.
45 H EHT Comp: Horizontal Extremely High Tension
Compesation. Range 0-7. Initial value: 4
46 V EHT Comp: Vertical Extremely High Tension
Compesation. Range 0-7. Initial value: 6
47DC Rest Set the DC Restoration level
48BLK Stretch Set the Black Stretch start point
49ABL Gain Set the Automatic Black Level Gain
50SVM GAIN Adjust the Scan Velocity Modulator gain
51SVM PH Adjust the Scan Velocity Modulator Phase
52ACB SW Activates Automatic Control Beam
53SHARP PF Sharpness peak frequency selection: 0 to
3.2 MHz and 1 to 4.0 MHz
54CORING Activates the enhancement of Sharpness from
1 to 2 MHz
55B-Y ATT Set the attenuation level of Cb of YUV signal
56R-Y ATT Set the attenuation level of Cr of YUV signal
57AUTO FLESH Activates the Flesh tone control
58 ABL START POINT Set the Automatic Black Level Start
Point
33 A Spectral: Adjust high frequency stereo separation
(3KHz.)
34 Wide Band: Adjust low frequency stereo separation
(300Hz.)
35 Max Blk. Hrs: Adjust the maximun number of hours
the TV can remain Blocked (even 99 hours)
36RGB Contrast: Set OSD Contrast level
37SUB Contrast: Set internal Sub-Contrast Register
38 EW Correct: East- West Correction. Range 0-63, Ini-
tial value:26
39 EW Top-Corr East-West Corner Correction (top). Range
0-31, Initial value: 14
40 EW Bott-Corr: East-West Corner Correction (bottom).
Range 0-31, Initial value: 23
41 EW Trap-Corr: East-West Trapezium Correction.Range
0-63. Initial value 30. Range 0-31, Initial value: 23
42 V Centering: Vertical Centering. Range 0-63. Initial
value: 30
43 V Linearity: Vertical Linearity. Range 0-15. Initial
value: 12
59Y GAMMA Set the non-linear Gamma curve for Lumi-
nance signal
60ACB PULSE P Set Automatic Control Beam Start Point
61SCREEN Not used
62AKB SETUP Mute the RGB Cathodes
63AUX BAND PASS Activates the Band Pass Filter for
Auxiliar (Composite, Y/C, YUV) input
64CD MATRIX Set the relative phase and amplitude of
Color response to demodulate de Chroma
65YCbCr Select the Demodulation System for Component
Video YUV or YCbCr
66C GAMMA Switch the Color Gamma
44 V S-Corr: Vertical S-Correction. Range 0-15. Initial
value: 11
FA - INSTALLERS MENU 2-2
SERVICING
A
V
A
A
A
A
V
A
A
A
A
LARGE SIGNAL
POWER SUPPLY
The FA is a COLD chassis of a single sided circuit board,
developed for a 27”. The power supply section features
four IC’s for voltages sources. The FA chassis has the
capability to meet the Energy Star requirement for a
low power consumption on stand-by mode.
·Main regulator for Horizontal Deflection (B+), +15V,
Switch mode regulator 223-00061-01.
·Error amplifier 221-00265-03A.
+33VSW
+15VSB@100mA
HORIZONTAL
DRIVE
+5VSW@ 100m
+33VSW@ 15m
TUNER
SWITCH MODE REGULATOR
The FA chassis employs a switching power supply, quasiresonant topology type. The AC line is supplied thru
the bridge rectifier BRX3400 and CX3410 circuit through
the fuse FX3400 (5A @ 250 V fast blow), The AC operation range is between 90 Vrms to 135 Vrms (see TABLE
1.1) and a filter, consisting of LX3400, LX3401, CX3401,
CX3403 and CX3408, which is employed before the rectifier circuit to reduce noise from the AC line and vice
versa (EMI).
The voltage output of the rectifier, VDC, is supplied to
the Switch Mode Regulator Power Supply, and its output should be in this range [127 VDC to 352.5 VDC].
The SMPS consisting of ICX3612, ICX3701, ICX3702 and
the chopper transformer TX3600. Through 100 KOHM
resistor (Rst), RX3601 and CX3604 (Cst), which is derived the VCC from CX3410. These feed the pin 3 into
the internal zener diode located within ICX3612.
HV
-14VSW
205VSW
+35VSW
+12~14 VSW
6.3Vrms
6.3Vrms@315m
+130V@900mA
SWEEP
TRANSFORME
AC LINE
LINE
FILTER
RECTIFER
SECTION
MPI
SWITCHING
HYBRID IC
+5VSB@ 2mA
+12VSB@600mA
PROTECTION
+5VSB
OPTO
DEVICE
MICROPROCESSO
LSP
+21VL
+VAUD
+16VSB
+12VUP
SHUNT
REGULATOR
+5VSBF@27mA
+9VSW@ 120m
B+
+9VSW
+5VSW
+5VSBF
PWR CTRL
POWER SUPPLY BLOCK SCHEMATIC
ABL
+5VSW@ 70m
+VAUD@1400m A
PROCESS OR
ST AUDIO
IDEO
+5VSW@ 80m
COMB FILTER
+9VSW@ 50m
+9VSW@ 55m
+9VSW@ 5mA
+9VSW@ 70m
STEREO
SWITCH & VOL-
-14VSW@
ERTICAL
DEFLECTION
SWITCH ER
CXA2089S
FILAMENT
+14VSW@
3-1 FA - SERVICING
SERVICING (continued)
PIN DESCRIPTION
PIN #DESCRIPTIONFUNCTION
1POWER MOSFET DRAINTo drive the chopper xfmr,capable of switching a max of 650V.
2GROUND
3DRIVE
4FEEDBACK
5SYNCHRONY
(HOT)
(+VCC)
(Vfb
(Vs/s
MOSFET Source connection.
Positive supply voltage, 32VDC
The output voltage error is applied to this pin.
External sync signal & Soft star capacitor.
At the same time this voltage is also applied to an internal comparator. So the voltage of this power source must
be within a set range, between a 5VDC reference (Vref)
and a 32VDC zener diode (Vz).
This set range is verified through the UVLO (Under Voltage Lock Out) circuit of the Switch Power IC.
START UP
When the VCC reaches a upper threshold voltage (15
VDC) the comparator switches to enable the ICX3612
including all internal bias circuits, control circuits, PWM
modulator & Power MOSFET.
Due the demand of energy from Cst and Rst the VCC voltage starts to fall. Before to fall too low, a bootstrap
winding on the power transformer (pins 13 & 16) reforces
adequately the VCC power to keep the full system operation.
VOLTAGE SOURCES
There are Five secondary windings on the TX3600 and
each has its own half wave rectifier.
Consequently there are Five stand-by DC voltages: B+,
24VAUD, 21VL, 16VSB & 12VUP.
The first is used to source the horizontal sweep circuit,
HOT (Horizontal Output Transistor). The second is used
for audio. The third is exclusively for the LSP source,
which is always on stand-by. The four is used for video
low signal processing and The fifth is used for
microcontroller.
The main microprocessor IC6000 and the EAROM memory
IC6001 are supplied by a five volts stand-by source,
+5V SB, which is derived through ICX3820 (0IKE78500P).
The +16 VSB and +12 VUP volts stand-by are protected
by fuses FX3613 and FX3614 ( 4A @ 125V) Very Fast
Acting, the +21VL and +24 VAUD volts stand-by are protected by fuses FX3611 and FX3612 ( 4A @ 125V) Slow
Blow. B+ as mentioned before are protected by the OCP
circuit. So they do not need fuse.
The FA chassis can be turn it on with the keyboard on
the front of the set or with the remote hand control.
The microcontroller IC6000 receive a signal and it output a high, about 4.8V, on pin 32 which is called PWRCTL. This pin is connected to RX3832, RX3831 and
RX3540; producing the +VAUD, +9VSW, +5VSW.
DEGAUSSING
The FA chassis employs a new method of degaussing,
which is performed through software. The IC6000 generate a pulse of about 1 second, time fixed, on pin 43.
This pin is set to high, about 4.8 VDC, through R3900,
4.7K 5% ¼watt. And it applies to Q3900, which drives
the 12 VCD relay KX3900. So the degaussing is performed
when the degauss coil is plugged to CN3T8 connector.
POWER SUPPLY ALIGNMENT PROCEDURES
ELECTRICAL ADJUSTMENT
The FA chassis SMPS does not need any manual measurement. All the output voltages are regulated through
ICX3702 (221-265-03A), error amplifier. The ICX3702
keeps the regulation using a reference voltage, through
a voltage divider. The voltage divider is formed by two
precision RX3706 and RX3704.
The values of these resistors depends of the B+ output
voltage.
NOTES:
·When servicing make sure to use a 120 VAC- 60Hz 25
Amp isolated source.
·Use a full white field on the video pattern generator.
FA - SERVICING 3-2
SERVICING
DEFLECTION
HORIZONTAL
PINCUSHION CORRECTION CIRCUIT
This circuitry provides a east/west pincushion correction by providing a smaller horizontal deflection current
at the upper and lower portions of the flat screen, thru
the dual OP-AMP IC3300 . In addition, the overall horizontal width is adjusted using this circuit.
SHUTDOWN CIRCUIT
This shuthdown circuit operates by means of a sample of
HV taken from pin 3 of the sweep transformer TX3200.
This sample of voltage is rectified, filtered and then compared with a reference voltage (fixed by ZDX3002) by
the transistor QX3001. When the HV reaches the maximum permitted voltage, the transistor QX3001 enters in
conduction mode; like consequence the transistor QX3002
also enters in conduction too, switching a DC voltage
on pin 32 of IC2200.
When IC2200 receives this DC voltage, the X-ray protection is activated and the TV set is shutting off.
VERTICAL
The FA chassis uses a 221-01410 on ICX2100, which
contains; On-chip Thermal Protection, Pump-Up Stage
and Power Amplifier. The vertical drives comes from pins
13 & 14 from the video processor IC2200, which are a
negative and positive vertical Ramps. The Output to
the yoke is on PIN 2 of ICX2100 . Dual power supply is
needed for this IC (+/- 14Vdc), Applied on pins 6 & 1
respectively.
SMALL SIGNAL
AUDIO & VIDEO PROCESSING
The FA chassis has a stereo amplifier, IC800 P221-1488,
which is the final audio stage. This chassis does not
have phone output, however it has Matrix Output. The
Matrix output is used to connect a center speaker, in
serial with the two stereo speakers. This feature is used
to connect an additional 8 Ohm 10W speaker.
The stereo amplifier provides an power output of 10W x
2. The IC1400, 221-01127 is the audio processor and
provides the Bass, Treble, Balance, front surround and
soundrite features, this IC is controlled thru the IIC bus.
1510
AUDIO
AMPLIF
3
Pr
Y
SVout
SVin
IC800
TDA7263
8
REAR
JACK -
Matrix-
Pb R
VRL
SVin R
FRONT
JACK-
VR
Output
Output R
L
L
L
Comp. Audio In
AUX2-R
AUX2-
CXA2054S
19
41
42
IC1400
2
I C
39
40
7
6
IC6000
AUX1-
AUX1-
L
R OUTPUT
IC2900
CXA2089S
RV4
30
28
LV
A/V
SWITC
RV3
24
LV
22
RV2
17
LV
15
R
47
L
45
17
Hard
RV1
10
LV
8
2
I C
L
R INPUT
VIDEO PROCESSING
The IC2200, P221-01519 or TB1253AN/N is a TV Signal
Processor IC, which contains PIF,SIF, Video, Chroma
and deflection signal processors for NTSC systems. Also,
it has V and EW geometric correction Outputs.
Features
IF Stage.
Inter-carrier input.
Digital AFT
Tank coil less PIF VCO
Adjustment Free
Video Stage
Built-in AV Switch
Video monitor Output for CCD MCU
Built in chroma trap
Black stretcher, DL Aperture Control
Scan Velocity Modulation output.
3-3 FA - SERVICING
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