CT 701

[Jokeyman123]

Not easy-I have been looking at these older. very well-made Casios-and are pretty rare. Those that come up are usually from someone who has had one for a long time, or someone who picked it up in a weird place-storage container, estate sale and possibly a yard sale or flea market.  "discrete" circuits-inidividual components took much engineering-and could be repaired with know-how and off the shelf parts-sometimes. You want to trouble-shoot my old TEAC 3340 deck-or LR9090 Lafayette amp, there were very few parts that could go bad-mostly smaller switching transistors-mine both work, really well, and are from 1970-1972. But those old caps, transformers and many mechanical parts were built to forever-good thing because sourcing these old huge caps, motors and many electronic relays-are like trying to find the holy grail. I think this 701 will end up well-restored-even a glitchy pot can do weird things to the sound-producing circuits. Can send a short of bad ground to another seemingly unrelated circuit-HAVE AT IT BONDO2!!!!!

                                                                                                                                                                                                  

[rohanamallawa]

See this link it has a manual for CT-701. It may help.

https://onedrive.live.com/?cid=C9235C1191699FAF&id=C9235C1191699FAF!6526

[Sine Wave Synth]

Just got a 701 and it worked fine when I tested it with the seller, got it home and it doesn't work!

On power up about half the led's light up and stay lit with no change, memory reads 88. The only sounds that work are the two sound effects. 

Been trouble shooting around the MPU chip to see if the schmitt trigger signal has something to do with it. 

Can provide more info, any trouble shooting suggestions?

[Chas]

On 11/2/2020 at 3:46 PM, Sine Wave Synth said:

Just got a 701 and it worked fine when I tested it with the seller, got it home and it doesn't work!

On power up about half the led's light up and stay lit with no change, memory reads 88. The only sounds that work are the two sound effects. 

Been trouble shooting around the MPU chip to see if the schmitt trigger signal has something to do with it. 

Can provide more info, any trouble shooting suggestions?

 

I have both the CT-701 user manual and also a Casio "Textbook" that appears to be the CT-701 service guide.

 

I can't see anything in either that describes the state you are encountering on power up, unfortunately. Nothing in the Troubleshooting sections appears similar.

 

From what you describe, it sounds that your 701 is not initializing correctly upon power on, or part of it's initializing process is getting stuck hence half the LEDs remaining lit and the memory reading "88".  I'd suggest trying the following:

 

If it came with the light pen and it is plugged in, remove the light pen and see if it makes a difference. Also disconnect everything (if anything is connected) other than the power cord, then try powering it on.

 

It's also worth trying the power cord in a different power socket/ outlet just in case there's some voltage issue at the wall outlet that is making it go screwy. If you are plugging it into an extension/ gang socket, try plugging the CT-701 directly into a wall socket instead.

If the above makes no difference, it's time to start looking inside. Maybe a connector has bumped loose and just needs to be reseated. Look for anything visually amiss or loose. Sometimes it can be something very simple and obvious that is causing the issue.

 

Failing all that, it's time to start probing the circuits themselves for correct operation. The "Textbook" shows all the circuits and how they're supposed to behave, and as you mentioned above regarding the Schmitt circuit, page 17 shows this circuit's operation that initializes the CT-701 on start up. That would be the first place to start checking. From this point onwards I can't offer any more as it's getting into electronic technician/ diagnostics territory that is beyond my knowledge.

I'll attach PDF's of the User Guide and also the Service Textbook if you haven't already got them.

Good luck, and please report back with any findings and progress!

   

Casio_Casiotone_CT-701 601 Casiotone_Textbook_701_601.pdf Casio_Casiotone_CT-701_Manual.pdf

[pianokeyjoe]

I have this CT701(Casiotone 701). Mine works but has only physical damage(one broken but working key, and the particle board casing falling apart). I HAVE worked on 2 Casio keyboards from the 1980s that had the issue of dead melody section but working auto accomp section. First, the Casiotone of the early 1980s used TWO chips for sound. The first chip which I am sure many here know of it. is the Rhythm/effects chip that also has the accomp bass and chord/arpeggio sounds. The second is the main sound synth chip for the melody side. My MT45 is setup with a permanent split with accomp ALWAYS ON, and I tried to overcome that but sadly that is when I found out about the 2 separate chips. The Casiotone 301/403 I think use similar setup as the MT45? But the CT701 was more like the MT70. I could not fix the Casiotone 403 that a friend had at the time back in the 90s because of my youth and lack of proper electronics knowledge, but the other keyboard I had that had a dead melody section was a MT500. Turns out it was a broken ribbon cable trace. Please check carefully and slowly(methodically), your wiring between the boards. The boards in the Wooden Casios were mostly plugin type connector and the connectors may have been loosened on the circuit boards. Check that. The other, is the darn battery section. Make sure to check for BATTERY ACID leak damage around and on the circuit boards near that battery compartment..

[Neto]

Hello, my Casiotone 701 keyboard woks well except when Casio Chord switch is in the OFF position.(All the others chord sw in the OFF position)

To hear a musical note or accord i need to press two or tree times the keys of keyboard.

Any sugestion? 

Thanks

 

Antonio Neto

 

 

[IanB]

2 hours ago, Neto said:

Hello, my Casiotone 701 keyboard woks well except when Casio Chord switch is in the OFF position.(All the others chord sw in the OFF position)

To hear a musical note or accord i need to press two or tree times the keys of keyboard.

Any sugestion? 

Thanks

 

Antonio Neto

 

 

The circuit is quite complicated but having had a quick look, the Casio Chord switch seems to interact with the sample and hold circuitry internally. THere are many things that could go wrong. First step if you're interested in fault finding would be to check the switch itself and clean it. Are you familiar with or have any experience with electronics fault finding?

[Neto]

Hello IanB,

 

I had just clean the switch, it seems that is not a sw problem. My Casioton 701 has not been used for some years, when i conecte it laste week the two 0,002 micro f  capacitores includede in the  power supply unity burned, i had just replaced them.

I am interested in fault fiding iam a little familiar with electronic but dont have big experience with electronic fault fiding but can try.

Do you have the electric diagram of 701?

Thanks for your support

Regards,

 

Antonio Neto

 

Sorry for my English, iam Potuguese.

 

 

[Chas]

1 hour ago, Neto said:

 

On 11/4/2020 at 1:23 PM, Chas said:

 

I have both the CT-701 user manual and also a Casio "Textbook" that appears to be the CT-701 service guide.

 

I can't see anything in either that describes the state you are encountering on power up, unfortunately. Nothing in the Troubleshooting sections appears similar.

 

From what you describe, it sounds that your 701 is not initializing correctly upon power on, or part of it's initializing process is getting stuck hence half the LEDs remaining lit and the memory reading "88".  I'd suggest trying the following:

 

If it came with the light pen and it is plugged in, remove the light pen and see if it makes a difference. Also disconnect everything (if anything is connected) other than the power cord, then try powering it on.

 

It's also worth trying the power cord in a different power socket/ outlet just in case there's some voltage issue at the wall outlet that is making it go screwy. If you are plugging it into an extension/ gang socket, try plugging the CT-701 directly into a wall socket instead.

If the above makes no difference, it's time to start looking inside. Maybe a connector has bumped loose and just needs to be reseated. Look for anything visually amiss or loose. Sometimes it can be something very simple and obvious that is causing the issue.

 

Failing all that, it's time to start probing the circuits themselves for correct operation. The "Textbook" shows all the circuits and how they're supposed to behave, and as you mentioned above regarding the Schmitt circuit, page 17 shows this circuit's operation that initializes the CT-701 on start up. That would be the first place to start checking. From this point onwards I can't offer any more as it's getting into electronic technician/ diagnostics territory that is beyond my knowledge.

I'll attach PDF's of the User Guide and also the Service Textbook if you haven't already got them.

Good luck, and please report back with any findings and progress!

   

Casio_Casiotone_CT-701 601 Casiotone_Textbook_701_601.pdf 825.1 kB · 5 downloads Casio_Casiotone_CT-701_Manual.pdf 1.78 MB · 2 downloads

 

1 hour ago, Neto said:

Hello IanB,

 

I had just clean the switch, it seems that is not a sw problem. My Casioton 701 has not been used for some years, when i conecte it laste week the two 0,002 micro f  capacitores includede in the  power supply unity burned, i had just replaced them.

I am interested in fault fiding iam a little familiar with electronic but dont have big experience with electronic fault fiding but can try.

Do you have the electric diagram of 701?

Thanks for your support

Regards,

 

Antonio Neto

 

Sorry for my English, iam Potuguese.

 

 

 

 

Antonio, check my previous post (quoted above) with a PDF link to the Casio_Casiotone_CT601 CT701 Text book file. It includes electrical rather than circuit board diagrams, but it shows you what you should be looking for/ testing in most of the main circuits.

[Erny]

Hola repare mi Casiotone701 con la misma falla el problema esta en el conversor digital analógico de las melodias que es el AM6012   Indicado como A en el diagrama cambiando este chip de 20 patillas deberias solucionar el problema, lo que puedes hacer es intercambiar los dac 6012 ya que tiene 2 uno para melodia y otro para el chord y así comprobas si es el causante Saludos desde Argentina.

[pianokeyjoe]

2 hours ago, Erny said:

Hola repare mi Casiotone701 con la misma falla el problema esta en el conversor digital analógico de las melodias que es el AM6012   Indicado como A en el diagrama cambiando este chip de 20 patillas deberias solucionar el problema, lo que puedes hacer es intercambiar los dac 6012 ya que tiene 2 uno para melodia y otro para el chord y así comprobas si es el causante Saludos desde Argentina.

For the English speaking, Erny says, He had a Casiotone 701 with the same fault and the problem is the digital to analog converter on the melody section which is AM6012, indicated on the diagram as section A. Changing this IC chip which has 20 pins, should fix your issue. What you can do temporarily to test this theory(paraphrasing now),is swap the same chip that is on the CHORD section as the same chip is used for BOTH the melody and chord sections. This way, you can test and see if that chip is indeed the issue. Greetings from Argentina!!

 

To add, the DAC 6012 is a slim DIP chip and is not too pricey and can be found in ebay, amazon, and popular electronics suppliers that still exist in 2021!. Remember, there are TWO chips like this. Change or test the one in the Melody section or section A on the diagram.

 

Gracias Erny, por tu solucion! Saludos desde EEUU de un Boricua!

[Neto]

OK thanks, I will do the same and will inform results. Thank you from Portugal. 

[Tommy Del Leerious]

Im fixing my friends CT701 for his birthday and I had the same problem with the melody setting. I followed @Chas ' Instructions as far as turning off the accomp and playing with the balance. I can hear the keys if I have it plugged into my amp and turned up all the way but it is still very soft. whenever I play one of the keys on the melody side of the keyboard they send this clicking sound to my amp. If someone on here could take me through the trouble-shooting I would appreciate it.

[TooSXy]

Having power issues with a 701 just acquired. When power is plugged in and left to charge it will power on and make noise for around 30 seconds then it shuts off. When you attempt to power it back on instantly it hits the speaker, but power light does not come on and no sound. I am thinking this may have to do with the "Reset Circuit" as layed out in the textbook mentioned previously. It appears that the +5 voltage works intermittently and then dies so it is sort of pointing to this reset circuit. Also replaced the AAA batteries that were corroded. Does anyone know if there's any extended information about the power section of this Keyboard or if it is simiilar to a different model that may have a manual? I'd really love to get this thing working. Thanks!

[IanB]

@TooSXy Well it does sound like something amiss in the power circuit. I don't have any more info than the textbook unfortunately. Stabbing about in the dark, a first thing to check would be electrolytic capacitors. Do you have an oscilloscope?

[TooSXy]

Yes that was the next place to overhaul, they definitely need to be replaced. I'll let you know if that does the trick! Thanks IanB!

[RANDYR]

Greetings Casio fans! I'm thinking of buying a slightly dirty CT-701 that's missing the long gray rocker switch caps for the EFFECT and TONE sections on the middle front panel. It's also missing a slider cap for CHORD accompaniment. These seem hard to find online via the usual Casio parts sites, Full Compass etc. Any good tips (pun intended) or links for finding these Casiotone parts, or close facsimiles? Thanks!

 

[Chas]

On 8/28/2021 at 9:33 PM, RANDYR said:

Greetings Casio fans! I'm thinking of buying a slightly dirty CT-701 that's missing the long gray rocker switch caps for the EFFECT and TONE sections on the middle front panel. It's also missing a slider cap for CHORD accompaniment. These seem hard to find online via the usual Casio parts sites, Full Compass etc. Any good tips (pun intended) or links for finding these Casiotone parts, or close facsimiles? Thanks!

 

 

You're going to have to hope that some place has some used spares, as these are now vintage keyboards long out of production. Sometimes similar era other Casio/ Casiotone models share common parts, so it's worth seeing if the parts are available from these if you can't find anything specific to the CT701. Worth seeing if other members of the same family (CT701/ 601/ 501) use these parts too so that you can expand your search.

Otherwise regular search the likes of Ebay is probably your best bet.

 

You can also check some specialist used Casio spares sellers online:

https://www.keyboardkountry.com/keyboard-parts/casio-repair-parts/

 

https://casiokeyboardjunkyard.com/

[Neto]

Hello Erny, i follow your sugestion i had change the two AM6012 without sucess , i need a service book of 701,do you have it?

 

regards,

 

Neto

[IanB]

@NetoChas posted the service book further up this thread.

[Neto]

IbanB, Thaks for the information  regarding the service book posted by Chas ,i have it its a kind of but not a really one. The service book includes electrical diagrames and test points with fundamental information in view to detect malfunctions . I have a electrical diagrams and spar parts book ,but untill now i didnot solve the problem. 

 

Antonio Neto

[IanB]

@Neto Sorry to say, so far as I know that's the best documentation there is.

[Chas]

@Neto- as @IanBsaid above, that's the best service manual that I could find online. I tried searching multiple online sites but have yet to find anything better. Feel free to continue searching for a better CT701 service manual, but from my searching, it currently does not appear to exist. 

[CYBERYOGI =CO=Windler]

Casiotone 701 is a relative of MT-70 and uses the same soundchips like Casotone 1000p. This chip even has the crazy capability to daisychain digital audio from an identical 2nd chip to omit analogue mixing (which was unique in such early casios). This is some text I wrote for my keyboard site:

 

The MT-70 was derived from the fullsize Casiotone 701, which has a 3rd HD43517 sound IC to support 8 note polyphonic play in chord mode, and a 3 digit 7 segment LED display instead of LCD. The general hardware architecture seems to be in US patent 4534257 (describing a CPU controlled keyboard that strongly resembles the 701, priority date 1981). The Casio barcode data format is described in the US patents 4422361 (general) and 4437378 (with key lighting). According to US patent 4464966 Casio also planned barcode programmable rhythm, which AFAIK was never released. The sound IC is explained in the Casiotone 1000P patent (US patent 4538495) and further details in US patent 4453440, which describes digital envelope control by adding phase shifted copies of the same sine wave to avoid multiplication, and how overtones are produced by a kind of phase distortion predecessor. In this patent Casio also describes how to mix the outputs of multiple sound ICs digitally, which was never done in any other 1980th Casio keyboards I am aware of. The sequencer is in US patent 4876938 (autoplay) which also mentions this sound IC. US patent 4622879 reveals the sequencer edit algorithm.

I haven't analyzed the hardware further yet, but Robin Whittle wrote (slightly desperate) in his technical bulletin "Modifying the Casiotone Instruments" from 1981 about this hardware family:

"The Series III instruments are the CT-701, 601 and 501, the 1000p and the MT-70. [... They] use a Z-80 like microcomputer - and two or three identical 42 pin Hitachi chips to produce the sound. The computer scans the keys, organises everything, and talks to the Hitachi chips via an 8 bit data bus. The Hitachi chips produce 12 bits of digital audio with a 25 Khz sample rate and control an attenuator which follows the DAC. Each chip produces 4 waveforms which are composed of variable amounts of the first 8 harmonics, the levels of which can be changed in each channel in real time. It is impossible to make the computer run another program. Bypassing the lowpass filter gives a brighter tone, but adds to the already unacceptable noise level. I have had little success in getting rid of this noise - it seems to come from everywhere and therefore I cannot see much point in trying to do anything more with these instruments."

When we compare that 25kHz mixing frequency and 12 bit with the 500kHz (see here) and up to 17 bit of the great D931C, it is no wonder that the HD43517 sound IC sucks. Like its competitor Yamaha PC-100 (and unlike previous Casios) the HD43517 sound engine has no switchable filters for different preset sounds anymore, which makes dull tones prone to digital noise and any static noise filter against it muffles bright tones more than desired. Apparently it was a crude attempt of imitating a Hammond organ or Yamaha's dull FM sound style, but it rather sounds cold, hollow and hissy and is way less versatile. It would be interesting to know how Z80-like the NEC D7802G really is (1000p has a "D7801G 077"). I expect it to be rather a predecessor of the documented D7811G.

Whittle's above description is quite ambiguous; I am not really sure if he meant that each sound IC had per polyphony channel 4 drawbars of each a fixed waveform sample that (in the factory) was made from 8 premixed sine wave harmonics, or that each IC had 4 polyphony channels with each 8 sine wave drawbars. The US patent 4538495 reveals that none of these seem to be true, but genuinely the readout phase angle of a 12 bit sine wave ROM is multiplied with a periodic signal from a CPU controllable "harmonic control section", which appears to be a crude predecessor of phase distortion. Said section uses binary gate control signals {XS0, XS1, XQ, Y0, YS2, YQ} to selectively multiply the phase data and/or phase address with 2 or a previous sum and add the result to the sine wave readout address. Frequency- and phase data resolution is 20 bit. Instead of multiplying the output waveform with an ADSR envelope, it is added to the phase data of the sine wave ROM (US patent 4453440). The sound generation for the 4 polyphony channels is time multiplexed (summed at the end as a 12 bit DAC output value), so all register contents of the sound IC is stored in circular multi-bit shift registers. As a form of hardware multitasking, after processing each channel they cycle to the next entry. (The famous D931C sound IC functions similar.) The 7 bit envelope data shift register has instead of 4 even 20 stages, which means 5 cycles per polyphony channel, during those overtones are summed by switching the harmonic control section signals. The sound IC architecture suggests that the envelopes of all 5 harmonics may be programmed individually.

With my Casiotone 1000p synth (same sound ICs, I read the service manual) each of its preset timbres consists indeed of up to 5 fixed harmonics (layered sine waves). While its preset volume "envelopes" affect all of them equally, a 2nd kind of preset envelope named "modulation" changes the volume envelopes of (apparently up to 3) harmonics individually, e.g.  to imitate a short filter sweep (wah effect) or increase bass or treble amount along the keyboard to approximate lowpass or highpass filtering. But no matter how exciting this additive synthesis thing looks in theory, in real life it sounds just like a sterile drawbar organ that lacks any grit and distortion because fake filters add no overtones. This sound engine is the absolute antithesis of POKEY - smooth and shiny and free of any rough intentional noise. I also suspect that the harmonics have not independent envelopes but that every preset sound has only one envelope with few steps between those it crossfades the vector of harmonics (i.e. waveform), i.e. all overtones change in the same time slots which limits expressivity.

pinout HD43517

The Music LSI "Hitachi HD43517" (42 pin DIL) is a 4 note polyphonic sound IC based on additive synthesis, that became famous by the synthesizer Casiotone 1000p. Each polyphony channel is mixing 5 harmonics (sine waves) with different digital envelopes in a similar manner like a drawbar organ. The IC outputs 12 bit digital audio to an external DAC and (like the later D933) 3 additional highest DAC bits control an expander circuit (sort of fast switching VCA, US patent 4414878) to increase dynamic range. (Without expander the DAC waveform tip looks sunken in like a collapsed copula and sounds distorted.) A sample & hold circuit then removes high frequency components. Interesting is that the IC can route its output as digital audio into another HD43517 for digital mixing through thats DAC to simplify analogue wiring. Unfortunately this wastes another DAC bit, and with only about 25kHz output frequency (due to the additional summing of 5 overtones per channel) the specs and tone quality are inferior to the earlier D931C. Interesting is that the internal signal processing (US patent 4453440) already resembles phase distortion, using phase-shifted sine wave addition from a 12 bit lookup table for fast multiplication. Frequency- and phase data resolution for each overtone is 20 bit, with 7 bit envelope controls.

Multiple HD43517 (up to 3?, existing in Casiotone 701) can be controlled by one CPU on the same 8 bit data bus. Normally each sound IC outputs audio through its own resistor ladder DAC, but in master-slave mode they can output through the DAC of the master. For this the signals DAD (serial sound data), EVD (envelope data) and SYC (sync) are sent from slave to master sound IC. (The slave's DAC has to be muted externally -  e.g. by its sample & hold stage.) DAD and EVD are disconnected to select normal mode.

This pinout and description is based on the Casiotone 1000p service manual with its handwritten schematics and incomplete numberings. E.g. the order of DAD and EVD are impossible to see. Apparently all "O-#" pins are outputs, "I-#" are inputs and "IO-#" can be both.
 

pin	name	purpose
1	I-13	DB0 data bus
2	I-12	DB1 data bus
3	I-11	DB2 data bus
4	I-10	DB3 data bus
5	I-9	DB4 data bus
6	I-8	DB5 data bus
7	I-7	DB6 data bus
8	I-6	DB7 data bus
9	IO-1	DAD ?
10	IO-3	SYC (?)
11	IO-4	EVD ?
12	I-1	CS
13	I-2	/WE (write enable in)
14	I-3	/A/D (adress/data in)
15	O-19	(at 2nd sound IC wired to cpu INT1)
16	O-20	(at 2nd sound IC wired to cpu INT2)
17	I-4	(possibly chip id 2?)
18	I-5	chip id? (at 2nd sound IC wired to GND)
19	I-14	/reset
20	PG	clock in (4MHz)
21	Vss	supply voltage +5V
22	O-13
23	O-12	digital audio out (LSB)
24	O-11	digital audio out
25	O-10	digital audio out
26	O-9	digital audio out
27	O-8	digital audio out
28	O-7	digital audio out
29	O-6	digital audio out
30	O-5	digital audio out
31	O-4	digital audio out
32	O-3	digital audio out
33	O-2	digital audio out
34	O-1	digital audio out (MSB)
35	O-18	expander control out
36	O-17	expander control out
37	O-16	expander control out
38	IO-2	SH 25kHz out for sample & hold circuit
39	O-14
40	Vcc2	(wired to Vcc1)
41	Vcc1	GND
42	O-15

 

[CYBERYOGI =CO=Windler]

On 1/23/2021 at 9:42 PM, pianokeyjoe said:

My MT45 is setup with a permanent split with accomp ALWAYS ON, and I tried to overcome that but sadly that is when I found out about the 2 separate chips.

 

That's because the main voice CPU supports fewer keys than the MT-45 keyboard has. (It would support only 1 lower and 5 higher note keys, because it was designed for shorter keyboards like MT-11 and PT-7.)

 

The electronics of the MT-45 employs the same very versatile D930G accompaniment CPU like the Casio CT-410V (and many other Casio instruments), although here only few features of it are used. Unlike in many other Casio keyboards, it is here not combined with the versatile D931C main voice soundchip (that it was dedicated for?), but a foreign main voice CPU "Hitachi HD44140" (same like in the rhythmless Casio MT-11) with only 8 preset sounds. Unlike the D931C, the HD44140 does not communicate at all with the D930G, but uses a completely independent keyboard matrix for all main voice related keys and switches. (Possibly Casio had not finished the D931C yet when the MT-45 went in production.) Unfortunately this results in that the accompaniment section at the left half of the keyboard can not be switched off, thus these keys can not be used for main voice play when neither chords nor manual bass is wanted. The only benefit is that so the polyphony is not reduced by accompaniment. But the HD44140 supports only 37 keys anyway, thus in a 49 keys instrument it would make little sense to circumvent this by complicated external logics.

 

To the right of the HD44140 is a trimmer that seems to be the level adjustment for the highest main voice bit. Another trimmer to its left was omitted (empty solder holes), that was intended to tweak the level ratio between low and higher bits to minimize distortion. The trimmer even further left seems to set the main volume. On the amp PCB there is a section of unused solder holes those look like made for a sustain pedal jack (not supported by HD44140) or tuning trimmer (not used due to crystal clock); its 3 unused foil cable solder pads go into nowhere. The MT-45 has 2 strange black square crystal oscillators. That at the D930G has a "6596, KSS3B" (PCB mark "X1 (6.6M)"?) while that of HD44140 is printed "5752, KSS3A" (PCB mark "X2 (5.7M). So I guess that the upper number is the frequency in kHz. Casio likely used crystals here because else it would have been hard to keep D930G and HD44140 play in tune with each other, because their clock ratio of 1.14673157163:1 would be hard to produce by simple frequency dividers.

rhythm & accompaniment

About the rhythm and accompaniment section and the tons of hidden D930G eastereggs (see CT-410V).

Edited January 12, 2022 by CYBERYOGI =CO=Windler