Page 1
SECTION 1
OVERVIEW
The GA series chassis was developed for Sentry 2, screen
sizes 19" through 27" stereo and mono models. The chassis 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. GA1, 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.
OVERVIEW
MODEL INFORMATION
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.
9-1871 (19/20V, MTS Stereo) Main Module w/3 Jack Assy,
CM150 1-1 GA - GENERAL
Page 2
SC3492A MODEL REMOTE CONTROL
6
POWER
Press to turn
TV ON or OFF
Press to access
closed captions.
Press (and repeat) to
activate the sleep timer
Press left to reduce
or right to increase
volume level of TV.
NUMBERED BUTTONS
Press repeatedly to
select desired menu.
CC
TIMER
VOLUME
MUTE
Press to turn off sound while
picture remains. Press again
C
C
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.
ENTER
Press to view Channel/Time
or to remove any on-screen
or
display in TV mode. Press to view
Display
menu
the Music menu (acti ve station)
listing in FM mode.
ADJUST (Left/Right)
Press during on-screen
menu operations to
adjust an option.
SELECT
Press during on-screen menu
operations to select an option.
SC3492A
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CM150 1-2 GA - REMOTES
Page 3
MBR3447 MODEL REMOTE CONTROL
FLASHBK ( Flashback)
Returns to previous Channel.
SURF
Turns Surf Channel On/Off
POWER
Turns TV On or Off.
MODE
Selects the remote’s mode of operation
MUTE
Turns soun d O ff an d On
whil e pi cture re m ai ns.
CHANNEL (Up/Do wn)
Selects ne xt ch annel in
TV’s memory. Press
and hold to r epe at .
NUMBER PAD
Selects ch annels direc tly.
MENU
Display s m enus for TV
and other opt ions.
LEFT/RIGHT ARROWS
Chooses and show s th e
desired menu option.
A, B, C Ke ys
Special features of some TV’s
TIMER
Displays the Sleep Timer menu.
Press repeatedly to set desired
TV shut-off time.
VOLUME (Left/Right)
Increases TV’s sound level.
ENTER
Shows Channel/Time, enters
channe l , or r em oves any
on-screen menus.
QUIT/ (Three Functions Key)
Exits from on-screen display, turns
the sound enhancement feature on
or off, and swi tches audio be t w ee n
Main source and PIP source.
UP and DOWN ARROWS
Moves hi ghlighted ba r wit hi n
menu to select an option.
CC
Display s cl o sed caption m enu.
TV/VCR SOURCE
Steps through source options.
MBR3447
124-00212-35
CM150 1-3 GA - REMOTES
Page 4
MBR3447A MODEL REMOTE CONTROL
FLASHBK (Flashback)
Returns to previous Channel.
SURF
Turns Surf Channel On/Off
POWER
Turns TV On or Off.
MODE
Selects the remote’s mode of operation
MUTE
Turns soun d O ff an d O n
whil e pi cture re m ai ns.
CHANNEL (Up/Down)
Selects next channel in
TV’s memory. Press
and hold to r epe at .
NUMBER PAD
Selects channels directly.
MENU
Displays m enus for TV
and other options.
LEFT/RIGHT ARROWS
Chooses and show s th e
desi red 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.
VOLUME (Left/Right)
Increases TV’s sound level.
ENTER
Shows Channel/Time, enters
channe l , or r em oves any
on-screen menus.
QUIT/ (Three Functions Key)
Exits from on -s cr een display, turns
the sound enhancement feature on
or off, and swit ches audio bet w ee n
Main source and PIP source.
UP and DOWN ARROWS
Moves hi ghlighted ba r wit hi n
menu to select an option.
CC
Display s cl o sed caption menu.
TV/VCR SOURCE
Steps through source options.
MBR3447A
124-00212-58
CM150 1-4 GA - REMOTES
Page 5
MBR3446 MODEL REMOTE CONTROL
FLASHBK ( Flashback)
Returns to previous Channel.
A Key
Special fe ature of some TV’ s
POWER
Turns TV On or Off.
MODE
Selects the remote’s mode of operation
MUTE
Turns soun d O ff an d On
whil e pi cture re m ai ns.
CHANNEL (Up/Do wn)
Selects ne xt ch annel in
TV’s memory. Press
and hold to r epe at .
NUMBER PAD
Selects ch annels direc tly.
MENU
Display s m enus for TV
and other opt ions.
LEFT/RIGHT ARROWS
Chooses and show s th e
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.
VOLUME (Left/Right)
Increases TV’s sound level.
ENTER
Shows Channel/Time, enters
channe l , or r em oves any
on-screen menus.
QUIT/ (Three Functions Key)
Exits from on-screen display, turns
the sound enhancement feature on
or off, and swi tches audio be t w ee n
Main source and PIP source.
UP and DOWN ARROWS
Moves hi ghlighted ba r wit hi n
menu to select an option.
CC
Display s cl o sed caption m enu.
TV/VCR SOURCE
Steps through source options.
MBR3446
124-00212-62
CM150 1-5 GA - REMOTES
Page 6
REMOTE PROGRAMMING
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.
CM150 1-6 GA - REMOTES
Page 7
REMOTE PROGRAMMING CODES
TV’S
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,
Fisher 109, 118
General 106, 107, 114, 116,
Electric 117, 161
Goldstar
Hitachi
Inteq 101
J.C. Penney
JVC 125, 132, 164
KMC 103
KTV 103, 104, 138
Kurazai 121
LG 184
Lodgenet 121
Logik 121
LXI 133, 137
Magnavox
Majestic 121
Marantz 104, 120, 155
Megatron 146
Memorex 121
MGA/Mitsubishi
Montgomery Ward 103, 104, 105, 113,
NEC 104, 119
Orion 176
Panasonic 106, 107, 160, 166
Philco 103, 104, 112, 113,
Philips 112, 113
Pioneer 135
Portland 103
ProScan 116, 157, 162, 167
Quasar 106, 107
RCA 104, 116, 126,
Realistic 105, 123, 124
Sampo 119
Samsung 103, 119, 134, 141
Sanyo 108, 109, 118
Scott 119, 124
Sears 103, 108, 109, 110,
Sharp 103, 105, 122, 133,
Signature 2000 103, 104, 105, 113,
Sony 115, 143, 151, 170
Soundesign 139
Sylvania 112, 113, 117, 119,
Tatung 106
Teknika
Telerent 103, 121
Toshiba 110, 111, 134, 171
XR1000 121, 154
Yorx 119
Zenith 101, 142, 149, 177
Zenith Star Sight 175
136, 145, 176
103, 104, 119, 147, 184
102, 103, 129, 163, 121
104, 110, 114, 117, 119
103, 112, 113, 117, 119,
127, 128, 130, 139, 165
104, 119, 120, 130, 133,
140, 155, 169, 178
114, 119, 121, 130, 133
139
157,161,162,167,168
111, 118, 134
137, 156, 169
114, 119, 121, 130, 133
127, 128, 139
103, 112, 121, 124, 139
VCRS
Admiral 208, 261
Adventura 231
Aiwa 231
Akai 223, 238, 241
Audio
Dynamics 202, 206, 218, 247
Bell & Howell 206, 247
Broksonic
Canon 214
Citizen 209
Craig 212
Criterion 239
Curtis 214, 259
Mathis
Daewoo 244, 246, 248, 254
Daytron 236, 246
DBX 202, 218
Emerson
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
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
Realistic
Samsung 220, 230, 238
Sansui 239
Sanyo 206, 212, 247
Scott 204, 205, 233, 243
Sears
Sharp 208, 261, 272
Shintom 239
Signature 2000 208, 214, 216, 219,
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,
221, 226, 233, 250, 255
203, 209, 221, 223, 226,
233, 235, 243, 250
202, 224, 225, 258, 263
215, 216, 220, 227,
240, 242, 244, 260
206, 208, 212, 214, 231
206, 209,211, 212, 215
231, 249, 261
237
VCR/TVS
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
CABLE/SATELLITE Set-Ups
Allegro 358, 362
Allegro A/B Switch 361
Amerkast 383
Dish Network 389
Gemini 305, 331, 338
General Electric 367
General Instrument
Hamlin
Jerrold 304, 307, 308, 309,
Kale Vision 335
Macom 314, 321
Magnavox 334
NSC
Oak 311, 332, 342
Panasonic 313, 320
Paragon 333
Philips
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
LASER DISC
Denon 402, 403
Mitsubishi 403
Pioneer 402, 403, 405
Sanyo 401
Sony 404
Zenith 401
AUDIO TAPE DECKS
Denon 455
Harman/Kardon 456
JVC 457
Kenwood 450
Onkyo 458
Philips DCC 454
Pioneer 451, 478
Sony 452
Technics 454, 497
Yamaha 453
305, 306
302, 303, 345, 365, 366
310, 318, 360, 363
335, 339, 368, 369, 370
347, 350, 352, 354, 355
AUDIO CD PLAYERS
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,
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
AUDIO TUNERS AND AMPLIFIERS
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,
DVD PLAYERS
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
441
460, 461, 498, 501, 502
502, 504, 505
CM150 1-7 GA - REMOTES
Page 8
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