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Author Topic: does anyone have schematics for zenith space comand crt tv  (Read 525 times)

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SpaceGod

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does anyone have schematics for zenith space comand crt tv
« on: February 24, 2017, 01:34:45 am »
i need schematics for zenith space comand crt tv that was made in 1986 trying to do a rgb mod.
its an old tv so i dont think it has OSD on it so i was going to find the rgb on the neckboard and the sync and and deampily it with resistors  (or caps i dont know exactly with one to use for this action) so i can use it for retro console. if some has it i would be very thankful.

SpaceGod

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #1 on: February 25, 2017, 08:34:25 pm »
I have looked everywhere online and cant find it.

the serial number is:
SS1909W
691-57061014

If someone has it and linked it to me i would be very grateful

ed12

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #2 on: February 25, 2017, 09:37:31 pm »
zenith never went that way
what u want is the 98-xxx-xxx # it is on the main chassic
this gives u everything u want
model # will only give u a picture of it.

space cmd ran for 15years

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #3 on: February 25, 2017, 11:48:37 pm »
zenith never went that way
what u want is the 98-xxx-xxx # it is on the main chassic
this gives u everything u want
model # will only give u a picture of it.

space cmd ran for 15years

ed

thank you ed
I couldnt find the schematics but i did find the data sheet for the ICs
one thing that i am wondering is if i should use the rgb from the neck board or the ones from the resistor by the Horiz/Vert Countdown System Circuit
so there are some pins that are marked as rgb. ill take pictures in a little bit

ed12

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #4 on: February 26, 2017, 11:47:40 am »
r/g/b is straight foward
your sync on the other hand will be a bear
zentih used complex jungle ic's to process all of that
i forget the wells/grander chassic but it used a daughter board that used the same ic on it
my daughter card has the ha # ic but in the zenith tv it is there in house 221-xxx-xx #'s which again some times are a bear to cross
cm38 series comes to mind
i will later today or tommrow when i have time chk my zenith manuals
a picture of the front of the set will help

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #5 on: February 26, 2017, 02:05:59 pm »
thanks man
actually the sync is looking to be the easy part. i found the sync output on the Horiz/Vert Countdown System Circuit pretty quickly.
would it be a bad idea to get the sync right from the IC?
« Last Edit: February 26, 2017, 02:08:50 pm by SpaceGod »

ed12

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #6 on: February 26, 2017, 02:11:08 pm »
yes that is easy to find
but u cannot lock to it
that ic carrys the sand filter
which unless u are going b/w .?
as it shuts down the chroma totaly if not sync-ed
by totaly it cuts the r/g/b's right off
u would need to re-bias them.
btw be careful it dose not need isiolation
some came with smps as power supplys some came hot >with isolated< tuners
early ones had a power transformer in them so they were perty much iso-ed

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #7 on: February 26, 2017, 02:21:04 pm »
and here are the pictures

SpaceGod

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #8 on: February 26, 2017, 04:05:52 pm »
There are 3 ICs

221-175: Horiz/Vert Countdown System
221-179-03: Luminance/Chroma Demodulator
221-190:  Video IF Amplifier/PLL Detector System

ed12

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #9 on: February 26, 2017, 04:40:41 pm »
the 175 and 179 are my concern
chk there loops
i think 179 feeds 175 2-x ie vert-sync/ horz-syc ?
i do forget i believe i am right

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #10 on: February 26, 2017, 05:41:40 pm »
the 175 and 179 are my concern
chk there loops
i think 179 feeds 175 2-x ie vert-sync/ horz-syc ?
i do forget i believe i am right

ed

yea that sounds like dousy to get around.
i have to ideas to fix the problem:

(also i cant find the datasheet for the 179)

  • get the the rgb from the neckboard or the 3 resistors but dont server the connection between the ICs and get sync from 221-175
  • get rgb but get the sync from the turner (but if i do that i dont think i can mess with a vhold if monitor goes about of sync)
those a few ideas if they are flawed please fill free to correct me.

also this the most arcade like chasis i have ever seen on a commercial brt tv before.
« Last Edit: February 26, 2017, 06:29:10 pm by SpaceGod »

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #11 on: February 26, 2017, 06:35:48 pm »
but i hope those 2 connectors are really rgb that makes it was easier to test and set up

ed12

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #12 on: February 26, 2017, 08:22:50 pm »
can u post a good picture of the complete chassic ?
i may beable to id it for u
besides zenith of course

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #13 on: February 26, 2017, 08:52:45 pm »
ok

ed12

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #14 on: February 26, 2017, 09:43:55 pm »
oh ---steaming pile of meadow muffin--- thats a cm138
newer chassic
unless i am wrong ?
smps
sep high voltage unit
that board is called if sub-system-demod board
final r/g/b drivers on on the neck board ?
used in 13"-27" up to and inculding there projector series
now i can find u the model #
u can find the 98# board # right on the board
tells u everything u need to know (schmeatics-spec's) for your use test point's (un-populated plug's)

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #15 on: February 26, 2017, 10:22:57 pm »
the insides of the tv says it it was made in 1986
and i still cant find the 98 number
« Last Edit: February 26, 2017, 10:26:43 pm by SpaceGod »

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #16 on: February 26, 2017, 10:28:00 pm »
yes i was thinking 80's
thats when they went to that series of modules
carefully look the demod board over and find either a 221 or 98 # it will be there
mostly printed on it or even a white sticker :if u can:?
which from the pervious picture i trust u can as these modules are keyed..so very hard to mess up plugging them back in right

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #17 on: February 27, 2017, 12:23:02 am »
Ok i see 2 thinks
204-1138-02J
and sticker ill send u a pic

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #18 on: February 27, 2017, 12:24:38 am »
please do

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #19 on: February 27, 2017, 12:27:42 am »
here

ed12

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Re: does anyone have schematics for zenith space comand crt tv
« Reply #20 on: February 27, 2017, 12:49:34 am »
first 1 is your module #
if u want i will dig in the manuals in the afternoon
that module is very fimilar to me
just cannot place the cm#
but i will

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #21 on: February 27, 2017, 01:03:23 am »
in some cases u add the "9" first
but here is my parital list of stock zenith
there is newer not yet added from when i bought out the last zenith dealer a few years ago
1-223-03 dual antenna
 01-291-03R
 009-0052-05R
 9-96 tuner control center
 9-103-01R audio amp (includes 221-48 and 221-77 IC's)
 [2] 9-103-04R audio amp (includes 221-98 IC)
 9-107-R audio amp (includes 221-48 IC)
 9-120-02R
 9-124-01 (used?)
 [sold] 9-127-02 module
 9-151R module
 9-151-01 RF & IF module
 9-151-01R module
 9-151-02R IF module
 [sold] 9-151-03R RF-IF module
 [sold?] 009-00152-01R module
 [2] 9-152-02R chroma lum module
 9-152-04R module
 9-152-14R chroma lum
 [sold] 9-153R HV pwr supply
 9-156-06R HV horiz sweep
 9-160-05A power supply (used)
 [sold] 9-00160-06R module
 [sold] 9-164R module
 009-00165R module
 [sold] 9-175-1513
 [sold] 009-00181R module
 [2] 009-00181-10R main Z1 chassis
 [4] 9-186-05R HV horiz sweep
 [2] 9-186-06R HV horiz sweep
 [sold] 9-186-08R HV Horiz sweep
 [sold] 009-00187-01R module
 [sold] 9-190R tuner control
 [sold] 9-0214R module
 9-214-05R main Z2 chassis
 9-240-R module
 9-253-04R stereo decoder
 [2] 9-291R main module
 9-291-01
 9-291-03R main B-1 chassis
 009-00323-04R module
 9-326 module
 9-351R sweep module
 9-442R stereo cont
 [2?] 9-467-01R video out module
 9-00517-03R module
 9-518R main B-3 chassis
 [sold] 009-00520-02R module
 [sold] 9-520-03 module
 [sold] 009-0520-05R module
 9-599R stereo decoder
 [sold] 9-00604R module
 9-00604-01R module
 009-00604-03R module
 9-628-06R module
 [sold] 9-00629-02R module
 9-00700R module
 9-728R power supply
 9-00731-03R module
 9-753-03R main C3 chassis
 [sold] 9-822-01 module
 009-00824-01R module
 009-00825-03R module
 9-840 module
 9-847R module
 9-851R C chassis main module
 9-851-03R main chassis
 9-871R main C-3 chassis
 9-890-R
 009-00911R module
 9-913R main C-2 chassis
 [1] 009-00914R (dud) module
 [sold?] 9-1053R main C-3 chassis
 [sold] 9-1054R module
 9-1055R main C-3 chassis
 9-1093-01R sweep
 [2] 9-01132-03R module
 [sold] 9-1134R main C3 chassis
 9-1195R PIP module C-3
 [2] 9-01235-R module
 [sold] 9-1237
 9-1265-3R
 [sold?] 9-1270-2
 [sold] 9-1302-R module
 9-1306
 9-1323-R module
 9-01332R module
 [2] 9-01389-R module
 9-01408-01R module
 9-1426-01R module
 9-1458-02
 9-01541R module
 9-01552-R module
 [sold] 9-01585-01R module
 [sold?] 9-01674-03R module
 [sold] 9-1978 power module fits A50M91W9 TV
 9-2290-02
 46-8019 knob
 46-8466 knob
 46-8561 UHF knob
 46-9244 knob
 46-9605 knob
 46-9689 knob
 6871VMMC27E module
 95-3103 defkectuib tije [2] 95-3406 yoke
 95-3458 yoke
 95-3797-1 yoke
 2N3738 transistor
 PTC205 diode
 (Zenith diode part numbers usually start with 103---)
 103-193 diode
 (Zenith transistor numbers usually start with 121---)
 121-185-6 transistor
 121-185-6-01 transistor
 121-185-6-10 transistor
 121-247 transistor
 121-257 transistor
 121-306 transistor
 121-308 transistor (two)
 121-381 transistor
 [sold] 121-383 transistor
 121-384 transistor
 121-397 transistor
 121-403 transistor
 [sold] 121-414 transistor
 [sold] 121-428 transistor
 121-434 transistor
 121-436 transistor (see replacement kit 800-158)
 121-450 transistor
 121-470 transistor (=BF200?)
 121-490 transistor
 121-494 transistor
 121-495 transistor
 121-499 transistor
 121-537 transistor
 121-546 transistor
 121-600 transistor
 121-671 transistor
 121-695 transistor
 121-699 transistor
 121-713 (see 800-256 kit)
 121-714 transistor
 121-722 transistor
 121-735B transistor
 121-743 transistor
 121-744 transistor
 121-745 transistor
 121-752 transistor
 121-754 transistor
 121-755 transistor
 121-756 transistor
 121-765-01 transistor
 121-767 transistor
 121-770X transistor
 121-773 transistor (two)
 121-774 transistor
 121-819 transistor
 121-821 transistor
 121-825 transistor
 121-827 transistor
 121-829X transistor
 121-835 transistor
 121-843 transistor
 121-868 transistor
 121-881 transistor
 121-888 transistor
 121-898 transistor
 [2] 121-911X audio transistor & installation kit; see also 800-401)
 121-922-1 transistor also known as 800-769 transistor kit
 121-933B transistor
 121-952 transistor
 121-968-01 transistor
 121-972-1 transistor
 121-973 transistor
 121-975 transistor
 121-976 and 121-977 transistors (also known as kit 800-601)
 121-984 transistor
 121-986-01 transistor
 121-1003 transistor
 121-1007 transistor
 121-2168 transistor
 122-918 transistor
 [2] 124-8-02 space command transmitter
 150-9-01
 150-115 IF chassis
 150-162-R IF chassis
 150-164-R IF chassis
 150-180R IF chassis
 150-186
 [2] 150-206A (includes 221-48 IC)
 [2] 150-208X sound
 [2] 150-211-R (includes 221-48 IC)
 [3] 150-219R sound chassis (includes 221-48 IC)
 175-1015R tuner
 175-1506R UHF tuner
 175-1513
 175-1954 tuner
 175-1971-04R tuner
 175-2028R tuner
 175-2030 tuner
 175-2034R tuner
 175-2200-50R tuner
 175-2201-40R tuner
 [2] 175-2258R tuner
 [sold] 175-2263-02 tuner
 [sold] 175-2277-01 tuner
 175-5020 tuner
 175-5065R tuner
 175-5082
 175-5088 tuner
 175-5104R chan sel
 175-5117R chan sel
 185-3 transistor
 185-4 transistor
 185-5 transistor (two)
 (Zenith IC part numbers generally start with 221---)
 221-38 IC
 221-45-01 IC
 221-46 IC
 221-48 IC
 221-69 IC
 221-84 IC
 221-84-01 IC
 221-92 IC
 221-100 IC (=TBA890?)
 221-261 IC
 800-158 (contains 121-436 transistor)
 800-256 (contains 121-713 transistor)
 800-401 (contains 121-911 transistor)
 800-601 (contains 121-976 and 121-977)
 800-617 varistor kit
 [2] 800-678 horiz sweep
 800-689 sweep
 800-690 sweep
 800-712 antenna
 800-843R circuit panel
 [3] 916-31007 (matched pairs of 2SB156 transistors)
 921-176B transistor
 (Zenith transistor numbers starting with A---- are usually packages with mounting hardware)
 [?] A709
 [1] A-924-R PCB-mike assy
 [1] A-00662
 [1] A-5553 transformer,br> [1] A-07475-01
 [1] A-07550 power supply
 [1] A-07704-02
 [1] A-07750
 [1] A-7836-R power supply
 [1] A-7836-04 power supply
 [1] A-08143-01
 [2] A-8347-05R det/amp assem chassis
 [1] A-08396 controls
 [1] A-8855
 [1] A-08855 balun & mounting
 [1] A-890-R IC counter assembly
 [1] A-8347-05R IF det/amp assem
 [1] A-9673 keyboard
 [?] A-09731-09 power cable assy
 [1] A-9740-02 transistor h sink
 [?] A-11341-05 power supply
 [2] A-11341-06 power supply
 [1?] A-11342-02 PC board assembly module
 [2] A-11344-02 power supply
 [2] A-11345-02 PB board assembly module
 [1] A-11347-01 keyboard assembly
 [sold] A-12307-04 control assembly
 [1] A-12523 pwr supply assembly
 [5] A-12653R power supply
 [1] A-12913 keyboard assembly
 [1] A-13139-03R module
 [1] A-13329 PC board assembly
 [1] A-13829 PC board assembly
 [1] A-13918-03 keyboard assembly
 [1] A-14224 controls
 [2] A-14604R module
 [1] A-14961-03
 [1] A-15893 module
 [1] A-15893-01R module
 [sold?] A-17196-05
 [1] A-18012-R module
 [?] A-22345-02 module
 S-26 (two) speaker control

ed
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Re: does anyone have schematics for zenith space comand crt tv
« Reply #22 on: February 27, 2017, 01:35:10 am »
the chassis is not listed :-[

  
 

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