Zenith A19A02D User manual

SERVICE MANUAL
Published by Technical Publications
Zenith Electronics Corporation
201 James Record Road - Huntsville, Alabama 35824-1513
ÓCopyright February 1999 by Zenith Electronics Corporation
Revised Edition August 1999
Printed in U.S.A.
ZEN REV2 600
Model Series:
A19A02D A25A23W84 LGA20A05DM84
A19A02D4 A25A23W9 LGA20A11DM
A19A02D7 A25A74R LGA20A11DM7
A19A02D74 A25A74R7 LGA20A11DM74
A19A02D8 A25A74R8 LGA20A11DM8
A19A02D84 A25A76R LGA20A11DM84
A19A11D A25A76R7 LGA21A22DM
A19A11D4 A25A76R8 LGA21A22DM4
A19A11D7 A27A11D LGA21A22DM8
A19A11D74 A27A11D4 LGA21A22DM84
A19A11D8 A27A11D8 LGA26A02DM
A19A11D84 A27A11D84 LGA26A02DM4
A20A22D A27A12D LGA26A02DM64
A20A22D4 A27A12D4 LGA26A02DM7
A20A22D8 A27A12D8 LGA26A02DM74
A20A22D84 A27A22BT LGA26A02DM8
A25A02D A27A22BT4 LGA26A02GM
A25A02D4 A27A22BT8 LGA26A02GM7
A25A02D64 A27A22BT84 LGA26A02GM8
A25A02D7 A27A23W LGA26A11DM
A25A02D74 A27A23W4 LGA26A11DM4
A25A02D8 A27A23W8 LGA26A11DM64
A25A02D84 A27A23W84 LGA26A11DM7
A25A11D A27A74R LGA26A11DM74
A25A11D4 A27A74R8 LGA26A11DM8
A25A11D64 A27A76R LGA26A12DM
A25A11D7 A27A76R8 LGA26A23WM
A25A11D74 EKA2667BT LGA26A23WM6
A25A11D8 EKA2968BT LGA26A23WM7
A25A11D84 LGA20A02DM LGA26A23WM74
A25A12D LGA20A02DM4 LGA26A23WM8
A25A12D4 LGA20A02DM7 LGA26A23WM9
A25A22BT LGA20A02DM74 LGA29A11DM
A25A22BT4 LGA20A02DM8 LGA29A11DM4
A25A22BT64 LGA20A02DM84 LGA29A11DM8
A25A22BT7 LGA20A02GM LGA29A11DM84
A25A22BT74 LGA20A02GM8 LGA29A11GM
A25A22BT8 LGA20A04DM LGA29A12DM
A25A22BT84 LGA20A04DM7 LGA29A12DM4
A25A23W LGA20A04DM74 LGA29A12DM84
A25A23W4 LGA20A04DM8 LGA29A23WM
A25A23W6 LGA20A04DM84 LGA29A23WM4
A25A23W64 LGA20A05DM LGA29A23WM8
A25A23W7 LGA20A05DM7 LGA29A23WM84
A25A23W74 LGA20A05DM74
A25A23W8 LGA20A05DM8
Product Type: Color Television Receiver
Chassis: GA
Manual Series: CM-150
Manual Part #: 923-03349R1
Model Line: A-Line
Product Year: 1998
CONTENTS
General Information/Remote Controls............... 1
Installer’s Menu............................................. 2
Servicing/Troubleshooting ............................. 3
Model/Module Parts Lists ............................... 4
Exploded Views ............................................. 5
Schematics ................................................... 6
REVISED EDITION
This revised edition includes the original GA manual
(923-03349) and the first addendum (923-03412).

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS
i
IMPORTANT SAFETY NOTICE
This manual was prepared for use only by properly trained audio-visual service
technicians.
When servicing this product, under no circumstances should the original
design be modified or altered without permission from Zenith Electronics
Corporation. All components should be replaced only with types identical to
those in the original circuit and their physical location, wiring and lead dress
must conform to original layout upon completion of repairs.
Special components are also used to prevent x-radiation, shock and fire hazard.
These components are indicated by the letter “x” included in their component
designators and are required to maintain safe performance. No deviations are
allowed without prior approval by Zenith Electronics Corporation.
Circuit diagrams may occasionally differ from the actual circuit used. This way,
implementation of the latest safety and performance improvement changes into
the set is not delayed until the new service literature is printed.
Caution: Do not attempt to modify this product in any way. Never perform
customized installations without manufacturer’s approval. Unauthorized
modifications will not only void the warranty, but may lead to property damage
or user injury.
Service work should be performed only after you are thoroughly familiar with
these safety checks and servicing guidelines.
Graphic symbols
The exclamation point within an equilateral triangle is intended
to alert the service personnel to important safety information in
the service literature.
The lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert the service personnel to the presence
of noninsulated “dangerous voltage” that may be of sufficient
magnitude to constitute a risk of electric shock.
The pictorial representation of a fuse and its rating within an
equilateral triangle is intended to convey to the service personnel
the following fuse replacement caution notice:
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ALL FUSES WITH THE SAME TYPE AND RATING AS MARKED
NEAR EACH FUSE.
SERVICE INFORMATION
While servicing, use an isolation transformer for protection from AC line shock.
After the original service problem has been corrected, make a check of the
following:
FIRE AND SHOCK HAZARD
1. Be sure that all components are positioned to avoid a possibility of
adjacent component shorts. This is especially important on items trans-
ported to and from the repair shop.
2. Verify that all protective devices such as insulators, barriers, covers,
shields, strain reliefs, power supply cords, and other hardware have been
reinstalled per the original design. Be sure that the safety purpose of the
polarized line plug has not been defeated.
3. Soldering must be inspected to discover possible cold solder joints, solder
splashes, or sharp solder points. Be certain to remove all loose foreign
particles.
4. Check for physical evidence of damage or deterioration to parts and compo-
nents, for frayed leads or damaged insulation (including the AC cord), and
replace if necessary.
5. No lead or component should touch a receiving tube or a resistor rated at
1 watt or more. Lead tension around protruding metal surfaces must be
avoided.
6. After re-assembly of the set, always perform an AC leakage test on all exposed
metallic parts of the cabinet (the channel selector knobs, antenna terminals,
handle and screws) to be sure that set is safe to operate without danger of
electrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURING THIS
TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity in
the following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by
a .15 mfd 150V AC type capacitor between a known good earth ground
water pipe, conduit, etc.) and the exposed metallic parts, one at a time.
Measure the AC voltage across the combination of 1500 ohm resistor and
.15 mfd capacitor. Reverse the AC plug by using a non-polarized adaptor
and repeat AC voltage measurements for each exposed metallic part. Voltage
measured must not exceed 0.75 volts RMS. This corresponds to 0.5 milliamp
AC. Any value exceeding this limit constitutes a potential shock hazard and
must be corrected immediately.
X-RADIATION
1. Be sure procedures and instructions to all service personnel cover the
subject of x-radiation. The only potential source of x-rays in current TV
receivers is the picture tube. However, this tube does not emit x-rays when
the HV is at the factory-specified level. The proper value is given in the
applicable schematic. Operation at higher voltages may cause a failure of
the picture tube or high-voltage supply and, under certain circumstances
may produce radiation in excess of desirable levels.
2. Only factory-specified CRT anode connectors must be used.
3. It is essential that the service personnel have available an accurate and
reliable high-voltage meter.
4. When the high-voltage circuitry is operating properly, there is no possibility
of an x-radiation problem. Every time a color chassis is serviced, the
brightness should be run up and down while monitoring the high voltage
with a meter, to be certain that the high voltage does not exceed the
specified value and that it is regulating correctly.
5. When troubleshooting and making test measurements in a product with a
problem of excessively high voltage, avoid being unnecessarily close to
the picture tube and the high voltage power supply. Do not operate the
product longer than necessary to locate the cause of excessive voltage.
6. Refer to HV, B+, and shutdown adjustment procedures described in the
appropriate schematics and diagrams (where used).
IMPLOSION
1. All direct view picture tubes are equipped with an integral implosion
protection system; take care to avoid damage during installation.
2. Use only the recommended factory replacement tubes.
TIPS ON PROPER INSTALLATION
1. Never install any receiver in a closed-in recess, cubbyhole, or closely
fitting shelf space over, or close to, a heat duct, or in the path of heated
air flow.
2. Avoid conditions of high humidity such as: outdoor patio installations
where dew is a factor, near steam radiators where steam leakage is a factor,
etc.
3. Avoid placement where draperies may obstruct venting. The customer
should also avoid the use of decorative scarves or other coverings that
might obstruct ventilation.
4. Wall- and shelf-mounted installations using a commercial mounting kit
must follow the factory-approved mounting instructions. A product mounted
to a shelf or platform must retain its original feet (or the equivalent
thickness in spacers) to provide adequate air flow across the bottom. Bolts
or screws used for fasteners must not touch any parts or wiring. Perform
leakage tests on customized installations.
5. Caution customers against mounting a product on a sloping shelf or in a
tilted position, unless the receiver is properly secured.
6. A product on a roll-about cart should be stable in its mounting to the cart.
Caution the customer on the hazards of trying to roll a cart with small
casters across thresholds or deep pile carpets.
7. Caution customers against using a cart or stand that has not been listed
by Underwriters Laboratories, Inc. for use with its specific model of
television receiver or generically approved for use with TVs of the same or
larger screen size.
8. Caution customers against using extension cords. Explain that a forest of
extensions, sprouting from a single outlet, can lead to disastrous
consequences to home and family.
A.C. Voltmeter
1500 OHM
10 WATT
Place this probe
on each exposed
metal part.
Good Earth Ground
such as the Water
Pipe, Conduit, etc.
0.15uF
CM150 GA - SAFETY

TABLE OF CONTENTS
SECTION 1 GENERAL INFO
OVERVIEW ............................................................. 1-1
MODEL INFORMATION ....................................... 1-1
SC3492A MODEL REMOTE CONTROL ........................... 1-2
MBR3447 MODEL REMOTE CONTROL ........................... 1-3
MBR3447A MODEL REMOTE CONTROL ......................... 1-4
MBR3446 MODEL REMOTE CONTROL ........................... 1-5
REMOTE PROGRAMMING ........................................... 1-6
AUTO FIND ..................................................... 1-6
CABLE BOX ..................................................... 1-6
VOLUME OVERRIDE........................................... 1-6
SPECIAL FEATURES ........................................... 1-6
REMOTE PROGRAMMING CODES ................................. 1-7
SECTION 2 INSTALLERS MENU
INSTALLERS MENU .................................................. 2-1
FACTORY RECOMMENDED SETTINGS 221-01164-01 ....... 2-3
FACTORY RECOMMENDED SETTINGS 221-01164-02 ....... 2-4
FACTORY RECOMMENDED SETTINGS 221-01305-01 ....... 2-7
SECTION 3 SERVICING
SERVICE INFORMATION ............................................ 3-1
GENERAL INFORMATION .................................... 3-1
HIGH-VOLTAGE AND X-RADIATION PROTECTION ..... 3-1
THEORY OF OPERATION (SHUTDOWN CIRCUIT) ...... 3-1
HV MEASUREMENT PROCEDURE .......................... 3-2
SERVICING THE MODULE ................................... 3-2
SERVICING THE POWER SUPPLY GA1 19”/20” ....... 3-2
POWER ON (9-1869/70/71 AND 9-1950) ............. 3-2
SWITCHED VOLTAGES ........................................ 3-2
SWEEP DERIVED VOLTAGES ................................ 3-2
SERVICING THE POWER SUPPLY .......................... 3-2
SWITCHED VOLTAGES ........................................ 3-2
SWEEP DERIVED VOLTAGES ................................ 3-3
VIDEO PROCESSOR ICX2200 .............................. 3-3
VERTICAL CIRCUIT ............................................ 3-3
HORIZONTAL CIRCUIT ........................................ 3-3
SERVICE ADJUSTMENTS (MECHANICAL) ............... 3-4
FOCUS ADJUSTMENT ......................................... 3-4
GA1/GA2 RGB CUTOFF (1164 MICRO)................... 3-4
SERVICE ADJUSTMENTS ........................................... 3-4
GA3 OF RGB CUTOFF (1305 MICRO) ..................... 3-4
PURITY & CONVERGENCE SETUP PROCEDURE ........ 3-6
VERTICAL-TILT WEDGE ADJUSTMENT .................... 3-7
HORIZONTAL-TILT WEDGE ADJUSTMENT ................ 3-7
UNUSUAL TILT CASE ......................................... 3-7
IMPROVING CRT CORNER PURITY ........................ 3-7
MODIFICATION................................................. 3-7
IC DESCRIPTIONS ................................................... 3-8
SECTION 4 PARTS
GA-1 MODELS ........................................................ 4-1
A19A02D........................................................ 4-1
A19A02D4 ..................................................... 4-1
A19A02D7 ...................................................... 4-1
A19A02D74 .................................................... 4-1
A19A02D8 ...................................................... 4-1
A19A02D8 ...................................................... 4-1
A19A11D........................................................ 4-2
A19A11D4 ...................................................... 4-2
A19A11D7 ...................................................... 4-2
A19A11D74 .................................................... 4-2
A19A11D8 ...................................................... 4-2
A19A11D84 .................................................... 4-2
A20A22D........................................................ 4-3
A20A22D4 ...................................................... 4-3
A20A22D8 ...................................................... 4-3
A20A22D84 .................................................... 4-3
LGA20A02DM .................................................. 4-3
LGA20A02DM4................................................. 4-3
LGA20A02DM7................................................. 4-4
LGA20A02DM74 ............................................... 4-4
LGA20A02DM8................................................. 4-4
LGA20A02DM84 ............................................... 4-4
LGA20A02GM .................................................. 4-4
LGA20A02GM8 ................................................. 4-5
LGA20A04DM .................................................. 4-5
LGA20A04DM7................................................. 4-5
LGA20A04DM74 ............................................... 4-5
LGA20A04DM8................................................. 4-5
LGA20A04DM84 ............................................... 4-6
LGA20A05DM .................................................. 4-6
LGA20A05DM7................................................. 4-6
LGA20A05DM74 ............................................... 4-6
LGA20A05DM8................................................. 4-7
LGA20A05DM84 ............................................... 4-7
LGA20A11DM .................................................. 4-7
LGA20A11DM7................................................. 4-7
LGA20A11DM74 ............................................... 4-7
LGA20A11DM8................................................. 4-8
LGA20A11DM84 ............................................... 4-8
LGA21A22DM .................................................. 4-8
LGA21A22DM4................................................. 4-8
LGA21A22DM8................................................. 4-8
LGA21A22DM84 ............................................... 4-9
GA-2 MODELS ........................................................ 4-9
A25A02D........................................................ 4-9
A25A02D4 ...................................................... 4-9
A25A02D64 .................................................... 4-9
A25A02D7 ...................................................... 4-9
A25A02D74 .................................................... 4-9
A25A02D8 .................................................... 4-10
A25A02D84 .................................................. 4-10
A25A11D...................................................... 4-10
A25A11D4 .................................................... 4-10
A25A11D64 .................................................. 4-10
A25A11D7 .................................................... 4-10
A25A11D74 .................................................. 4-11
A25A11D8 .................................................... 4-11
A25A11D84 .................................................. 4-11
A25A12D...................................................... 4-11
CM150 TOC - 1 GA -TOC

A25A12D4 .................................................... 4-11
A25A74R ...................................................... 4-11
A25A74R7 .................................................... 4-12
A25A74R8 .................................................... 4-12
A25A76R ...................................................... 4-12
A25A76R7 .................................................... 4-12
A25A76R8 .................................................... 4-13
A27A11D...................................................... 4-13
A27A11D4 .................................................... 4-13
A27A11D8 .................................................... 4-13
A27A11D84 .................................................. 4-13
A27A12D...................................................... 4-13
A27A12D4 .................................................... 4-14
A27A12D8 .................................................... 4-14
LGA26A02DM ................................................ 4-14
LGA26A02DM4............................................... 4-14
LGA26A02DM64 ............................................. 4-14
LGA26A02DM7............................................... 4-14
LGA26A02DM74 ............................................. 4-15
LGA26A02DM8............................................... 4-15
LGA26A11DM ................................................ 4-15
LGA26A11DM4............................................... 4-15
LGA26A11DM64 ............................................. 4-15
LGA26A11DM7............................................... 4-16
LGA26A11DM74 ............................................. 4-16
LGA26A11DM8............................................... 4-16
LGA26A12DM ................................................ 4-16
LGA26A02GM ................................................ 4-16
LGA26A02GM7 ............................................... 4-16
LGA26A02GM8 ............................................... 4-17
LGA29A11DM ................................................ 4-17
LGA29A11DM4............................................... 4-17
LGA29A11DM8............................................... 4-17
LGA29A11DM84 ............................................. 4-17
LGA29A12DM ................................................ 4-17
LGA29A12DM4............................................... 4-18
LGA29A12DM84 ............................................. 4-18
LGA29A11GM ................................................ 4-18
GA-3 MODELS ...................................................... 4-18
A25A22BT .................................................... 4-18
A25A22BT4 .................................................. 4-18
A25A22BT64 ................................................. 4-19
A25A22BT7 .................................................. 4-19
A25A22BT74 ................................................. 4-19
A25A22BT8 .................................................. 4-19
A25A22BT84 ................................................. 4-19
A25A23W ..................................................... 4-20
A25A23W4 .................................................... 4-20
A25A23W6 .................................................... 4-20
A25A23W64 .................................................. 4-20
A25A23W7 .................................................... 4-21
A25A23W74 .................................................. 4-21
A25A23W8 .................................................... 4-21
A25A23W84 .................................................. 4-21
A25A23W9 .................................................... 4-21
A27A22BT .................................................... 4-22
A27A22BT4 .................................................. 4-22
A27A22BT8 .................................................. 4-22
A27A22BT84 ................................................. 4-22
A27A23W ..................................................... 4-23
A27A23W4 .................................................... 4-23
A27A23W8 .................................................... 4-23
A27A23W84 .................................................. 4-23
A27A74R ...................................................... 4-23
A27A74R8 .................................................... 4-23
A27A76R ...................................................... 4-24
A27A76R8 .................................................... 4-24
LGA26A23WM ................................................ 4-24
LGA26A23WM6 .............................................. 4-24
LGA26A23WM7 .............................................. 4-25
LGA26A23WM74............................................. 4-25
LGA26A23WM8 .............................................. 4-25
LGA26A23WM9 .............................................. 4-25
LGA29A23WM ................................................ 4-25
LGA29A23WM4 .............................................. 4-26
LGA29A23WM8 .............................................. 4-26
LGA29A23WM84............................................. 4-26
SECTION 5 EXPLODED VIEWS
GA1 19/20V MONO TABLE TOP SET EXPLODED VIEW..... 5-1
GA1 19/20V STEREO TABLE TOP SET EXPLODED VIEW... 5-2
GA2 25/26V TABLE TOP SET EXPLODED VIEW .............. 5-3
GA2 25V TRADITIONAL CONSOLE EXPLODED VIEW ....... 5-4
GA2 25V CONTEMPORARY CONSOLE EXPLODED VIEW .... 5-5
GA2 27/29V TABLE TOP SET EXPLODED VIEW .............. 5-6
GA3 25/26V TABLE TOP SET EXPLODED VIEW .............. 5-7
GA3 27/29V TABLE TOP SET EXPLODED VIEW .............. 5-8
GA3 27V TRADITIONAL CONSOLE EXPLODED VIEW ....... 5-9
GA3 27V CONTEMPORARY CONSOLE EXPLODED VIEW .. 5-10
SECTION 6 SCHEMATICS
GA1 SCHEMATICS .................................................... 6-1
INTERCONNECT DIAGRAM .................................. 6-1
AUDIO PROCESSOR .......................................... 6-2
MAIN PROCESSOR ............................................ 6-3
VIDEO PROCESSOR ........................................... 6-4
POWER SUPPLY & H/V DEFLECTION ..................... 6-5
VIDEO OUTPUT ................................................ 6-6
BLOCK DIAGRAMS ............................................ 6-7
PCB LAYOUT .................................................... 6-8
SMD LAYOUT ................................................... 6-9
GA2 SCHEMATICS .................................................. 6-11
INTERCONNECT DIAGRAM ................................ 6-11
POWER SUPPLY .............................................. 6-12
AUDIO PROCESSOR ........................................ 6-13
MAIN PROCESSOR .......................................... 6-14
VIDEO PROCESSOR ......................................... 6-15
H/V DEFLECTION ............................................ 6-16
VIDEO OUTPUT .............................................. 6-17
BLOCK DIAGRAMS .......................................... 6-18
PCB LAYOUT .................................................. 6-19
SMD LAYOUT ................................................. 6-20
GA3 SCHEMATICS .................................................. 6-21
INTERCONNECT DIAGRAM ................................ 6-21
POWER SUPPLY .............................................. 6-22
AUDIO PROCESSOR ........................................ 6-23
MAIN PROCESSOR .......................................... 6-24
VIDEO PROCESSOR ......................................... 6-25
H/V DEFLECTION ............................................ 6-26
JACK & SWITCHING CIRCUIT ............................ 6-27
VIDEO OUTPUT .............................................. 6-28
BLOCK DIAGRAMS .......................................... 6-29
PCB LAYOUT .................................................. 6-30
CM150 TOC - 2 GA -TOC
TABLE OF CONTENTS

CM150 1-1 GA - GENERAL
OVERVIEW
SECTION 1
OVERVIEW
MODEL INFORMATION
The GA series chassis was developed for Sentry 2, screen
sizes 19" through 27" stereo and mono models. The chas-
sis is a single sided printed circuit board. One board is
used for the 19" and 20" connected sets. A second board
is used on the 25" and 27" isolated sets. During the
manufacturing process, the EAROM is programmed for
any added features. Output jacks will be added to the
board to accommodate the different features: Video/
Audio In, Non MTS Stereo, and MTS Stereo.
The GA series chassis features three IC’s for all signal,
sync and sweep processing. ICX2200 handles all of the
audio/video, sync and sweep drive processing. IC6000
is the microprocessor and IC6001 is the EAROM memory.
The keyboard and IR detector are tied directly to IC6000.
IC2100/2101 handles the vertical sweep.
At turn on, voltages for the vertical and video output
circuit are derived from the sweep circuit.
The GA chassis is comprised of three (3) categories. GA-
1, GA-2, and GA-3. Each category represents the screen
size and different model feature levels.
The GA-1 chassis had five module variations which are as
follows:
9-1869 (19/20V, Mono) Main Module w/o Jack Assy.
9-1870 (19/20V, Non MTS Stereo) Main Module w/o Jack
Assy.
9-1871 (19/20V, MTS Stereo) Main Module w/3 Jack Assy,
A-18577.
9-1950 (19/20V, Mono) Main Module w/2 Jack Assy, A-
18577-01.
The GA-2 chassis has three module variations which are
as follows:
9-1789 (25V, Mono) Main Module w/o Jack Assy.
9-1790 (25V, Stereo) Main Module w/3 Jack Assy, A-
18577.
9-1791 (27V, Non MTS Stereo) Main Module w/3 Jack
Assy, A-18577.
9-1831 (25V Stereo) Main Module w/3 Jack Assy. A-
18577.
9-1831 (25V, Stereo) Main Module w/3 Jack Assy, A-
18577.
The GA-3 chassis also has three module variations which
are as follows:
9-1996 (25V, MTS Stereo) Main Module w/5 Jack Assy,
A-18785.
9-1997 (27V, MTS Stereo) Main Module w/5 Jack Assy.
A-18785.
9-1998 (27V, MTS Stereo) Main Module w/5 Jack Assy.
A-18785.

CM150 1-2 GA - REMOTES
SC3492A MODEL REMOTE CONTROL
MUTE
Press to turn off sound while
picture remains. Press again
to restore sound.
FLSHBK
Press to return to last TV
channel you were watching.
CHANNEL Up/Down
Press to select a TV channel by
going up/down through channels
programmed in the TV memory.
SC3492A
124-00213-1
6
ENTER
Press to view Channel/Time
or to remove any on-screen
display in TV mode. Press to view
the Music menu (active station)
listing in FM mode.
Display
menu
or
POWER
Press to turn
TV ON or OFF
CC
Press to access
closed captions.
TIMER
Press (and repeat) to
activate the sleep timer
VOLUME
Press left to reduce
or right to increase
volume level of TV.
NUMBERED BUTTONS
Press repeatedly to
select desired menu.
CC
ADJUST (Left/Right)
Press during on-screen
menu operations to
adjust an option.
SELECT
Press during on-screen menu
operations to select an option.

CM150 1-3 GA - REMOTES
MBR3447 MODEL REMOTE CONTROL
FLASHBK (Flashback)
Returns to previous Channel.
POWER
Turns TV On or Off.
MODE
Selects the remote’s mode of operation
MUTE
Turns sound Off and On
while picture remains.
VOLUME (Left/Right)
Increases TV’s sound level.
ENTER
Shows Channel/Time, enters
channel, or removes any
on-screen menus.
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.
SURF
Turns Surf Channel On/Off
CHANNEL (Up/Down)
Selects next channel in
TV’s memory. Press
and hold to repeat.
NUMBER PAD
Selects channels directly.
MENU
Displays menus for TV
and other options.
LEFT/RIGHT ARROWS
Chooses and shows the
desired menu option.
A, B, C Keys
Special features of some TV’s
TIMER
Displays the Sleep Timer menu.
Press repeatedly to set desired
TV shut-off time.
QUIT/ (Three Functions Key)
Exits from on-screen display, turns
the sound enhancement feature on
or off, and switches audio between
Main source and PIP source.
MBR3447
124-00212-35

CM150 1-4 GA - REMOTES
MBR3447A MODEL REMOTE CONTROL
FLASHBK (Flashback)
Returns to previous Channel.
POWER
Turns TV On or Off.
MODE
Selects the remote’s mode of operation
MUTE
Turns sound Off and On
while picture remains.
VOLUME (Left/Right)
Increases TV’s sound level.
ENTER
Shows Channel/Time, enters
channel, or removes any
on-screen menus.
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.
SURF
Turns Surf Channel On/Off
CHANNEL (Up/Down)
Selects next channel in
TV’s memory. Press
and hold to repeat.
NUMBER PAD
Selects channels directly.
MENU
Displays menus for TV
and other options.
LEFT/RIGHT ARROWS
Chooses and shows the
desired menu option.
A, B, C Keys
Special features of some TV’s
TIMER
Displays the Sleep Timer menu.
Press repeatedly to set desired
TV shut-off time.
QUIT/ (Three Functions Key)
Exits from on-screen display, turns
the sound enhancement feature on
or off, and switches audio between
Main source and PIP source.
MBR3447A
124-00212-58

CM150 1-5 GA - REMOTES
MBR3446 MODEL REMOTE CONTROL
FLASHBK (Flashback)
Returns to previous Channel.
POWER
Turns TV On or Off.
MODE
Selects the remote’s mode of operation
MUTE
Turns sound Off and On
while picture remains.
VOLUME (Left/Right)
Increases TV’s sound level.
ENTER
Shows Channel/Time, enters
channel, or removes any
on-screen menus.
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.
CHANNEL (Up/Down)
Selects next channel in
TV’s memory. Press
and hold to repeat.
NUMBER PAD
Selects channels directly.
MENU
Displays menus for TV
and other options.
LEFT/RIGHT ARROWS
Chooses and shows the
desired menu option.
B, C, D, E Keys
Special features of some TV’s
TIMER
Displays the Sleep Timer menu.
Press repeatedly to set desired
TV shut-off time.
QUIT/ (Three Functions Key)
Exits from on-screen display, turns
the sound enhancement feature on
or off, and switches audio between
Main source and PIP source.
MBR3446
124-00212-62
A Key
Special feature of some TV’s

CM150 1-6 GA - REMOTES
PROGRAMMING THE MBR3446 AND MBR3447 REMOTES
If you’re using Zenith products, the remote is already
programmed for most common codes. 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 indicator light turns on.
2. Press the device button to be programmed: CATV, VCR,
AUX, or TV.
3. Enter 3-digit product code from chart on next page.
4. Press and release ENTER to save code.
5. Point remote at product and press POWER to test
product operation. If it does not turn on, reprogram
remote using a different code.
6. Write codes on the label inside battery compartment
for future reference.
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 device you want to operate.
2. Press and hold PRG using a blunt pointed object.
Release PRG after the indicator light turns on.
3. Press the device button to be programmed: CATV, VCR,
AUX, or TV.
4. Enter “000”, then press ENTER within two seconds.
Auto Find is active when 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 product 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 the
functions you use most often, 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
These remotes can control cable/converter box volume
and muting if available on your equipment.
1. Program the cable/converter box normally.
2. After programming the cable/converter box, Press and
hold PRG again using a blunt pointed object. Release
PRG after indicator light turns on.
3. Press and release the cable device button.
4. This time, enter the special code 3-9-9 instead of
the product code.
5. Press and release ENTER to save.
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 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.
SPECIAL FEATURES
AUX+1, AUX+2, AND AUX+3 Capability
These remotes 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 AUX and “1” simultaneously to select AUX+1.
4. Enter three-digit code, then press ENTER. Indicator
light should flash, then turn off to indicate code is
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 codes on the label inside battery compartment
for future reference. Hold down AUX and press 1, 2, or
3 to access AUX+1. +2 or +3 mode.
REMOTE PROGRAMMING

CM150 1-7 GA - REMOTES
Daewoo 148
Emerson 158
Funai 154
Goldstar 153
Hitachi 154
LXI 154
Magnavox 173, 181
Panasonic 174
RCA 179
Samsung 180
Sansui 182
Sharp 179
Sylvania 154
Symphonic 154
Zenith 153, 154, 172
Allegro 358, 362
Allegro A/B Switch 361
Amerkast 383
Dish Network 389
Gemini 305, 331, 338
General Electric 367
General Instrument 305, 306
Hamlin
302, 303, 345, 365, 366
Jerrold 304, 307, 308, 309,
310, 318, 360, 363
Kale Vision 335
Macom 314, 321
Magnavox 334
NSC
335, 339, 368, 369, 370
Oak 311, 332, 342
Panasonic 313, 320
Paragon 333
Philips
347, 350, 352, 354, 355
Pioneer 315, 343
Primstar 388
Radio Shack 362
RCA DSS 373, 394
Regal 366
Regency 329
Samsung 335
Scientific Atlanta 316, 323, 336, 364
Sony DSS 387
Sprucer 313
Standard Comp 335
Stargate 379
Texscan 339, 356, 371
Tocom 317, 318, 346
Toshiba DSS 391
Unika 348, 362
United Satellite 344
Universal 358, 362
Vid Tech 340
Video Way 349
Viewstar 354, 355, 372
Zenith 301, 353
Zenith HD Set Top 385
Zenith N/C Set Top 384, 395
Zenith Satellite 312, 328, 330, 351
Denon 402, 403
Mitsubishi 403
Pioneer 402, 403, 405
Sanyo 401
Sony 404
Zenith 401
Denon 455
Harman/Kardon 456
JVC 457
Kenwood 450
Onkyo 458
Philips DCC 454
Pioneer 451, 478
Sony 452
Technics 454, 497
Yamaha 453
REMOTE PROGRAMMING CODES
Admiral 116, 121, 130, 133
Adventura TV/VCR 154
Akai 104
Amark 103, 146
AOC 104
Bell & Howell 121
Broksonic 131, 136, 182
Candle 139
Centurion 119
Citizen 121, 139
Contec 141
Coronado 103
Crown 103
Curtis Mathis 116, 119, 121
Daewoo 149, 159
Daytron 119
Elektra 121
Emerson 103,104,123,124, 131,
136, 145, 176
Fisher 109, 118
General 106, 107, 114, 116,
Electric 117, 161
Goldstar
103, 104, 119, 147, 184
Hitachi 102, 103, 129, 163, 121
Inteq 101
J.C. Penney
104, 110, 114, 117, 119
JVC 125, 132, 164
KMC 103
KTV 103, 104, 138
Kurazai 121
LG 184
Lodgenet 121
Logik 121
LXI 133, 137
Magnavox 103, 112, 113, 117, 119,
127, 128, 130, 139, 165
Majestic 121
Marantz 104, 120, 155
Megatron 146
Memorex 121
MGA/Mitsubishi
104, 119, 120, 130, 133,
140, 155, 169, 178
Montgomery Ward 103, 104, 105, 113,
114, 119, 121, 130, 133
NEC 104, 119
Orion 176
Panasonic 106, 107, 160, 166
Philco 103, 104, 112, 113,
139
Philips 112, 113
Pioneer 135
Portland 103
ProScan 116, 157, 162, 167
Quasar 106, 107
RCA 104, 116, 126,
157,161,162,167,168
Realistic 105, 123, 124
Sampo 119
Samsung 103, 119, 134, 141
Sanyo 108, 109, 118
Scott 119, 124
Sears 103, 108, 109, 110,
111, 118, 134
Sharp 103, 105, 122, 133,
137, 156, 169
Signature 2000 103, 104, 105, 113,
114, 119, 121, 130, 133
Sony 115, 143, 151, 170
Soundesign 139
Sylvania 112, 113, 117, 119,
127, 128, 139
Tatung 106
Teknika
103, 112, 121, 124, 139
Telerent 103, 121
Toshiba 110, 111, 134, 171
XR1000 121, 154
Yorx 119
Zenith 101, 142, 149, 177
Zenith Star Sight 175
Admiral 208, 261
Adventura 231
Aiwa 231
Akai 223, 238, 241
Audio
Dynamics 202, 206, 218, 247
Bell & Howell 206, 247
Broksonic
221, 226, 233, 250, 255
Canon 214
Citizen 209
Craig 212
Criterion 239
Curtis 214, 259
Mathis
Daewoo 244, 246, 248, 254
Daytron 236, 246
DBX 202, 218
Emerson
203, 209, 221, 223, 226,
233, 235, 243, 250
Fisher 211, 212, 213, 247
Funai 231
General 214, 216, 220
Electric
Goldstar 209, 273
Go Video 256, 262, 263, 275
Hitachi 215, 231, 257
Instant 214, 227
Replay
Inteq 273
J.C. Penney 214, 215, 218, 227
JVC
202, 224, 225, 258, 263
Kenwood 202
Logik 239
LXI 209, 231
Magnavox 207, 214, 231
Marantz 207, 218
Marta 209
Memorex 206, 212, 214, 231
Mitsubishi 204, 222, 252, 264
Montgomery 208, 214, 216, 219,
Ward 231, 249
Multi Tech 239
NEC 202, 218
Optimus 208, 209, 259
Orion 233, 250
Panasonic 214, 251, 259
Pentax 215
Philco 207, 214
Philips 207, 214, 227
Pioneer 210, 215
Portland 246
Pro Scan 216, 260
Quasar 214, 259
RCA
215, 216, 220, 227,
240, 242, 244, 260
Realistic 206, 208, 212, 214, 231
Samsung 220, 230, 238
Sansui 239
Sanyo 206, 212, 247
Scott 204, 205, 233, 243
Sears
206, 209,211, 212, 215
Sharp 208, 261, 272
Shintom 239
Signature 2000 208, 214, 216, 219,
231, 249, 261
Sony 217, 232, 237, 274
Sylvania 207, 214, 227
Symphonic 231
Tashiko 209
Tatung 202
Teac 202, 231
Teknika 209, 234
Toshiba 205, 215, 271
XR1000 239
Vector Research 204, 218
Yamaha 202, 218
Zenith 201, 224, 225, 229,
237
Akai 409, 424
Carver 510
Crown 410
Denon 411
Fisher 412, 438
Goldstar 460
Harman/ Kardon 413
JVC 415
Kenwood 412, 416, 417, 441
Magnavox 421, 422, 433, 434
Mitsubishi 423, 424
NAD 425, 426, 447
Nakamichi 427, 428
NEC 429
Onkyo 430
Panasonic 431, 432
Philips 421, 433, 434
Pioneer 431, 435
Quasar 432
Radio Shack 431, 436, 439, 440,
441
RCA 437
Sanyo 438, 439
Scott 440
Sharp 441, 442
Sony 443, 444, 445
Soundesign 461, 498, 501, 502
Sylvania 433
Teac 446
Technics 432, 459
Toshiba 447
Yamaha 448
Zenith
460, 461, 498, 501, 502
Denon 462, 463
Fisher 464
Goldstar 460
Harman Kardon 465
JVC 466
Kenwood 468, 469, 506
Marantz 472, 503
Onkyo 473
Philips 475, 476
Pioneer 477, 478, 479
Radio Shack 487, 488
Realistic 480
Sanyo 481
Scott 482
Sharp 483
Sherwood 487, 488
Sony 489, 490, 491, 492
Soundesign 461, 498, 501, 502
Teac 494, 495
Technics 497, 509, 567,
Yamaha 496
Zenith 460, 461, 498, 501,
502, 504, 505
Denon 523, 524
Marantz 521
Mitsubishi 525
Panasonic 523, 524
Philips/Magnavox 521
Pioneer 527
Proscan 526
RCA 526
Sony 522
Toshiba 521
Zenith 521
TV’S VCRS VCR/TVS AUDIO CD PLAYERS
CABLE/SATELLITE Set-Ups
AUDIO TUNERS AND AMPLIFIERS
LASER DISC
AUDIO TAPE DECKS
DVD PLAYERS

CM150 2-1 GA - INSTALLER MENUS
INSTALLER’S MENU
ACCESS
Access the Service Menu by using the remote control or
the keyboard on the front of the set.
With the remote: Press and hold MENU key until user
menu displays disappears, then press 9, 8, 7, 6 and
ENTER. This will access the 03 H Pos item of the Service
Menu.
Models with 6 button Keyboard: Press and hold Menu
until User Menu display disappears. Immediately press
Volume Up and Channel Down simultaneously.
Models with 10 button keyboard: Press and hold MENU
until the user menu disappears. Immediately press the
Adj. Right and Channel Up keys simultaneously.
NOTE: Entry into and exit from the Service Menu will
automatically unblock all parental control.
To exit Service Menu, press ENTER key. Entry into and
exit from the Service Menu, will automatically un-block
all parental Control.
DISPLAY
The GA Chassis uses three different microcontrollers
(IC6000): 221-01164-01, 221-01164-02, or 221-
01305-01. When the Factory menu is accessed, the
opening display screen will show the microcontroller on
the top line. It will look as shown in Figure 1 or 2. The
bar at the top indicates the part number of the software
in the set. The bar at the bottom has a date and number.
The date on the left indicates the date the module went
through the factory. The number on the right indicates
the module has been tested.
The first seven menu items 00 through 06 will be the
same for each micro. Items 07 through the end will be
different on each micro.
When Service Menu appears, it will always appear on
third item H Pos. Use SELECT key to toggle through all
of the adjustments.
1164-01/02 MICRO
00 F MODE: (Factory Mode) Use Select key to select
item #00, which is the first item in the Service Menu,
the Factory mode. This item is used by the factory
when the module is being tested. In the field, this
item should always be left “off”. Zero is “Off”!
When the factory mode is Off, only the first seven
items in the Service Menu can be accessed. When the
factory mode is set to 1, all menu items will be avail-
able. Also they will appear on the screen one at a
time at the top left of the screen, as shown in Figure
3.
If the factory mode is “On”, a pair of dashes will ap-
pear at the top of the Customer Set Up Menu. On
other menus a number corresponding to the setting
of a high lighted item will be shown. This is a quick
way a technician can tell that the factory mode is on.
Other unusual things also happen when the factory
mode in “On”, for example, the AC power on feature is
always enabled regardless of the setting of “AC On” in
the Service Menu. The set will automatically come On
when AC is applied. In addition, when the factory
mode is “On”, the Service Menu can be accessed on
10 button key boards by pressing simultaneously the
RIGHT ADJ. and CHANNEL UP buttons. On 6 button
keyboards press VOLUME UP and CHANNEL DOWN but-
tons. Otherwise the hand control must be used to re-
enter the Service Menu to turn the factory mode off.
The factory mode can also be turned off by adjusting
the setting of the clock, or running the Auto Pro-
gram feature in the customer Set Up menu.
01 Pre Px: Used to store the customer menu adjust-
ments in the non-volatile memory of the EAROM. Set-
tings for Contrasts, Brightness, Color and Tint are
stored in this manner. 0 is custom and 1 is Pre-set
stored.
02 V Pos: Moves On Screen Displays vertically. Range is
0 - 24. Generally set at 10.
INSTALLERS MENU
SECTION 2
Figure 1
1164-01/02 Micro opening
display.
Figure 2
1305 Micro opening display.
Figure 3
1164-01/02 Factory mode on
opening display.

CM150 2-2 GA - INSTALLER MENUS
03 H Pos: Moves On Screen Displays horizontally. Range
is 0 - 13. Generally set at 9.
04 Level: There are three positions, 0, 1 and 2. The
three different positions are used at the factory to
program the module for the correct features. In
order to change the level, short pins 3 and 4
together on connector 4G9 on the main module.
The connector is located on the left hand side of
the module just to the left of the Micro IC6000 on
19" and 20" sets. On the 25" and 27" sets it is on
the left edge of the module. Use the Adjust button
to change the level. Connector 4G9 is located on
the left hand side of the module near the micro.
NOTE: BE CAREFUL!! IF THE WRONG PINS ARE SHORTED,
THE MODULE CAN POSSIBLY BE DAMAGED.
NOTE: BE SURE TO REMOVE THE JUMPER AFTER THE LEVEL
HAS BEEN SET.
Level 0 and 2 is used for Private Label sets. Level 1
and 2 are used for Zenith sets. In the private label
mode the IR code is 21 or 121.
05 Band: There are eight positions. 0 is Broadcast
fixed, 1 is CATV afc, 2 is HRC afc, 3 is ICC afc, 4 is
Broadcast afc, 5 is CATV fixed, 6 is HRC fixed, and 7
is ICC fixed.
06 AC On: There are two positions, 0 is off and 1 is AC
ON. In On position set will turn on and off when AC
power is applied and removed.
1164-01 AND 1164-02 MICROCONTOLLER
07 Rf Bpf: (Rf Bandpass) Range is 0 - 1.
08 3.58T: 3.58 MHz trap. Range is 0 - 1.
09 RF Brt: (RF Brightness) Sets adjustment range of
the customer control, for brightness in RF mode.
Range is 0 - 63.
10 Aux Brt: (Auxiliary Brightness) Sets adjustment
range of the customer control, for brightness in
AUX mode. Range is 0 - 63.
INSTALLERS MENU 221-01164-01/02 (continued)
11 V Size: (Vertical Size) Adjusts the size of the
picture vertically. Range is 0 - 63.
12 V Phase: (Vertical Phase) Shifts the picture
vertically. Range is 0 - 7.
13 H Phase: (Horizontal Phase) Shifts the picture
horizontally. Range is 0 - 31.
14 AudLvl: (Audio Level) Sets the gain for the
Composite Audio from Video processor. Range is
0 - 63.
15 RF Agc: Range is 0 - 63. Tune in weakest channel
and adjust for a snow free picture.
16 H Afc: There are two settings 0 and 1.
17 WhComp: (White Compression) There are two
settings 0 and 1.
18 60 HzSW: (60 Hertz Switched) Range is 0 - 3.
19 PifVco: (PIF Voltage Controlled Oscillator) Range is
2 - 127.
ITEMS #20 THROUGH 24 ARE FOR B&W TRACKING
20 R Cut: Range is 0 - 254.
21 G Cut: Range is 0 - 254.
22 B Cut: Range is 0 - 254.
23 G Gain: Range is 0 - 254.
24 B Gain: Range is 0 - 254.
25 C Type: (Chassis Type) There are six selections, 0
to 5. 0 is mono, 1 is mono W/Aux, 2 is Non MTS
Stereo, 3 is Non MTS W/Aux, 4 is MTS chassis and 5
is MTS chassis W/Aux.
26 Scroll: Selects the method the User menus will
appear on the screen. Scroll Off is 0.
27 6 Keys: Set to 1 for the 6 key keyboard. Set to 0
for the 10 key keyboard.
1164-01 MICROCONTROLLER
28 SpkSw: Range is 0 - 1. This item is not being used.
29 5 Jacks: Range is 0 - 1. Set to 0.
30 St & Sap: Range is 0 - 1. Set to 0.
1164-02 MICROCONTROLLER
28 SpkrSw: Range is 0 - 1. This item is not being
used.
29 Surf: Range is 0 - 1. This item is not being used.
30 Vcurve: Adds Speakers in Set-up menu, Zero is off.
4G9 CONNECTOR
DATA
CLOCK
CONTROL
+5 VOLTS
GROUND
1
2
3
4
5
TEST
POINT

CM150 2-3 GA - INSTALLER MENUS
INSTALLERS MENU 221-01164-01/02 (continued)
FACTORY RECOMMENDED SETTINGS 221-01164-01
* 04 Level 0 and 1 are used for Zenith sets. Level 0 is Private Label.
ITEM RANGE 19/20" 25” 27"
00 F Mode 0-1 0 0 0
01 Pre Px 0-1 1 1 1
02 V Pos 0-24 10 7 7
03 H Pos 0-13 10 10 10
04 Level 0-2 1* 1* 1*
05 Band 0-7 0 0 0
06 AC On 1 0 0 0
07 RF Bpf 0-1 1 1
08 3.58T 0-1 1 1 1
09 RF Brt 0-63 32 32 32
10 Aux Brt 0-63 32 32 32
11 V. Size 0-63 36 36 36
12 V. Phase 0-7 5 2 2
13 H. Phase 0-31 19 19 18
14 Aud Lvl 0-63 46 46 46
15 RF Agc 0-63 31 31 33
16 H Afc 0-1 1 1 1
17 WhComp 0-1 0 0 0
18 60 HzSw 0-3 2 2 2
19 PifVco 0-127 31 31 31
20 R Cut 0-254 0 10 5
21 G Cut 0-254 0 10 5
22 B Cut 0-254 0 10 5
23 G Gain 0-254 90 90 90
24 B Gain 0-254 90 90 90
25 C Type 0-5 2 2 2
26 Scroll 0-1 1 1 1
27 6 Keys 0-1 1 1 1
28 SpkrSw 0-1 0 0 0
29 5 Jack 0-1 0 0 0
30 St & Sap 0-1 0 0 0
Factory Mode 0 (Blue)
Factory Mode 1 (Black)

CM150 2-4 GA - INSTALLER MENUS
INSTALLERS MENU 221-01164-01/02 (continued)
FACTORY RECOMMENDED SETTINGS 221-01164-02
* 04 Level 0 and 1 are used for Zenith sets. Level 0 is Private Label.
ITEM RANGE 19/20" 25” 27"
00 F Mode 0-1 0 0 0
01 Pre Px 0-1 1 1 1
02 V Pos 0-24 10 7 7
03 H Pos 0-13 10 10 10
04 Level 0-2 1* 1* 1*
05 Band 0-7 0 0 0
06 AC On 1 0 0 0
07 RF Bpf 0-1 1 1
08 3.58T 0-1 1 1 1
09 RF Brt 0-63 32 32 32
10 Aux Brt 0-63 32 32 32
11 V. Size 0-63 36 36 36
12 V. Phase 0-7 5 2 2
13 H. Phase 0-31 19 19 18
14 Aud Lvl 0-63 46 46 46
15 RF Agc 0-63 31 31 33
16 H Afc 0-1 1 1 1
17 WhComp 0-1 0 0 0
18 60 HzSw 0-3 2 2 2
19 PifVco 0-127 31 31 31
20 R Cut 0-254 0 10 5
21 G Cut 0-254 0 10 5
22 B Cut 0-254 0 10 5
23 G Gain 0-254 90 90 90
24 B Gain 0-254 90 90 90
25 C Type 0-5 2 2 2
26 Scroll 0-1 1 1 1
27 6 Keys 0-1 1 1 1
28 SpkrSw 0-1 0 0 0
29 Surf 0-1 0 0 0
30 Vcurve 0-1 0 0 0
Factory Mode 0 (Blue)
Factory Mode 1 (Black)

CM150 2-5 GA - INSTALLER MENUS
1305 MICRO
00 F MODE: (Factory Mode) Use Select key to select
item #00, which is the first item in the Service Menu,
the Factory mode. This item is used by the factory
when the module is being tested. In the field, this
item should always be left “off”. Zero is “Off”!
When the factory mode is Off, only the first seven
items in the Service Menu can be accessed. When the
factory mode is set to 1, all menu items will be avail-
able. Also they will appear on the screen one at a
time at the top left of the screen, as shown in Figure
3.
If the factory mode is “On”, a pair of dashes will ap-
pear at the top of the Customer Set Up Menu. On
other menus a number corresponding to the setting
of a high lighted item will be shown. This is a quick
way a technician can tell that the factory mode is on.
Other unusual things also happen when the factory
mode in “On”, for example, the AC power on feature is
always enabled regardless of the setting of “AC On” in
the Service Menu. The set will automatically come On
when AC is applied. In addition, when the factory
mode is “On”, the Service Menu can be accessed on
10 button key boards by pressing simultaneously the
RIGHT ADJ. and CHANNEL UP buttons. On 6 button
keyboards press VOLUME UP and CHANNEL DOWN but-
tons. Otherwise the hand control must be used to re-
enter the Service Menu to turn the factory mode off.
The factory mode can also be turned off by adjusting
the setting of the clock, or running the Auto Pro-
gram feature in the customer Set Up menu.
01 Pre Px: Used to store the customer menu adjust-
ments in the non-volatile memory of the EAROM. Set-
tings for Contrasts, Brightness, Color and Tint are
stored in this manner. 0 is custom and 1 is Pre-set
stored.
02 V Pos: Moves On Screen Displays vertically. Range is
0 - 24. Generally set at 10.
03 H Pos: Moves On Screen Displays horizontally. Range
is 0 - 13. Generally set at 9.
04 Level: There are three positions, 0, 1 and 2. The
three different positions are used at the factory to
program the module for the correct features. In order
to change the level, short pins 3 and 4 together on
connector 4G9 on the main module. The connector is
located on the left hand side of the module just to
the left of the Micro IC6000 on 19" and 20" sets. On
the 25" and 27" sets it is on the left edge of the
module. Use the Adjust button to change the level.
Connector 4G9 is located on the left hand side of the
module near the micro.
NOTE: BE CAREFUL!! IF THE WRONG PINS ARE SHORTED,
THE MODULE CAN POSSIBLY BE DAMAGED.
NOTE: BE SURE TO REMOVE THE JUMPER AFTER THE LEVEL
HAS BEEN SET.
Level 0 and 2 is used for Private Label sets. Level 1
and 2 are used for Zenith sets. In the private label
mode the IR code is 21 or 121.
05 Band: There are eight positions. 0 is Broadcast fixed,
1 is CATV afc, 2 is HRC afc, 3 is ICC afc, 4 is Broadcast
afc, 5 is CATV fixed, 6 is HRC fixed, and 7 is ICC fixed.
06 AC On: There are two positions, 0 is off and 1 is AC
ON. In On position set will turn on and off when AC
power is applied and removed.
07 Rf Bpf: (RF bandpass) Range is 0 - 1.
08 3.58T: 3.58 Mhz trap. Range is 0 - 1.
09 Rf Brt: (RF Brightness) Set the adjustment range of
customer control for brightness in RF mode. Range
is 0 - 63.
10 Ax Brt: (Aux Brightness) Sets adjustment range of
customer control for brightness in the AUX mode.
Range is 0 - 63.
11 MaxCon: (Max Contrast) Set adjustment range of
customer control for contrast. Range is 0 - 63.
12 V. Size: (Vertical Size) Adjusts size of picture
vertically. Range is 0 - 254.
13 H. Size: (Horizontal Size) Adjusts size of picture
horizontally. Range is 0 - 254.
14 V. Phase: (Vertical Phase) Shifts picture vertically.
Range is 0 - 7.
15 H. Phase: (Horizontal Phase) shits picture verti-
cally. Range is 0 - 7.
16 AudLvl: (Audio Level) Set gain for Composite
Audio from Video processor. Range is 0 - 63.
17 RF Agc: Range is 0 - 63.
INSTALLERS MENU 221-01305-01
4G9 CONNECTOR
DATA
CLOCK
CONTROL
+5 VOLTS
GROUND
1
2
3
4
5
TEST
POINT

CM150 2-6 GA - INSTALLER MENUS
18 H Afc: There are two setting 0 and 1. Setting is
usually 1.
19 WhComp: (White Compression) There are two
settings 0 and 1. Setting is 0.
20 60hzSw: (60 Hertz compression) There are two
settings 0 and 1. Setting is 0.
21 PifVco: (PIF Voltage Controlled Oscillator)
Range is 0 - 127.
Items # 22 through #26 are for B&W tracking
22 R Cut: Range is 0- 254.
23 G Cut: Range is 0 - 254.
24 B Cut: Range is 0 - 254.
25 G Gain: (Green Gain) Range is 0 - 254.
26 B Gain: (Blue Gain) Range is 0 - 254.
27 Scroll: Selects the method the User Menus that will
appear on the screen. Scroll Off is 1, 1 is On.
28 6 Keys: Set to 1 for the 6 button keyboard.
29 A Att: (Audio Attenuator) Range is 0 - 15.
30 A VCO: (Audio Voltage Controlled Oscillator)
Range is 0 - 63.
31 A Fltr: (Audio Filter) Range is 0 - 63.
32 Spctrl: High Frequency separation. Range is
0 - 63.
INSTALLERS MENU 221-01305-01 (continued)
33 W Band: (Wide Band Low Frequency Separation)
Range is 0 - 63.
34 PiP Z1: Adjusts horizontal position of the insert
picture on left side.
35 PiP Y1: Adjusts vertical position of the insert
picture on left side.
36 PiP X2: Adjusts horizontal position of the insert on
right side.
37 PiP Y2: Adjust vertical position of the insert
picture on right side.
38 PiP Ras: (Picture in Picture Raster) Range is 0
- 255.
39 PiP Sw: (Pip Switch Delay) Used to center PIP
Boarder and PIP picture in the horizontal direction.
Range is 0 - 15.
40 PiPLud: (PIP Luminance Delay) Used to match
Luma and Chroma of inset picture. Range is 0 - 7.
41 PIP Tof: (PIP Tint level register) Range is 0 - 63.
42 C. In OSDC: On screen dispalay internal oscillator.
Range is 0 - 1.
43 OSD FR: On screen display frame. Range is 0 - 1.

CM150 2-7 GA - INSTALLER MENUS
ITEM RANGE 25” 27"
00 F Mode 0-1 0 0
01 Pre Px 0-1 1 1
02 V Pos 0-24 14 17
03 H Pos 0-13 6 8
04 Level 0-2 0* 0*
05 Band 0-7 0** 0**
06 AC On 1 0 0
07 RF Bpf 0-1 1 1
08 3.58T 0-1 1 1
09 RF Brt 0-63 32 32
10 Aux Brt 0-63 32 32
11 MaxCon 0-63 63 63
12 V. Phase 0-254 86 53
13 H. Phase 0-254 110 104
14 V. Phase 0-7 3 1
15 H. Phase 0-31 15 20
16 Aud Lvl 0-63 46 46
17 RF Agc 0-63 31 31
18 H Afc 0-1 1 1
19 WhComp 0-1 0 0
20 60hz Sw 0-3 2 2
21 PifVco 0-127 32 32
22 R Cut 0-254 5 5
23 G Cut 0-254 0 0
24 B Cut 0-254 10 10
25 G Gain 0-254 66 66
26 B Gain 0-254 14 14
27 Scroll 0-1 1 1
28 6 keys 0-1 1 1
29 A Att 0-1 9 9
30 A VCoc 0-15 31 31
31 A Fltr 0-63 31 31
32 Spctrl 0-63 31 31
33 W Band 0-63 31 31
34 PiP X1 0-63 7 7
35 PiP Y1 0-63 5 5
36 PiP X2 0-63 49 49
37 PiP Y2 0-63 32 32
38 PiP Ras 0-254 68 68
39 PiP Sw 0-15 8 8
40 PiP Lud 0-7 2 2
41 PiP TOF 0-63 3 3
42 C. In OSDC 0-1 0 0
43 OSD FR 0-1 0 0
General Setting (Blue) Factory Mode 0
Technical Settings (Black) Factory Mode 1
Color Temp Cool Starting Values
INSTALLERS MENU 221-01305-01 (continued)
FACTORY RECOMMENDED SETTINGS 221-01305-01