1. Value Of Bally Slot Machine

Repair Tips for Reel Readers

Bally is a leading maker of slot machines, a coin-operated gambling device. The user inserts money into the machine and pulls the lever. The reel results determine if you are a winner. Slot machines pay out into a tray located at the bottom of the device. Slot machine shuts off during a payout Ratchet cam switch adjustment Timer motor circuit (red light is on) Improper adjustment of the timer cam Intermittent short may be causing the 110 volt fuse to blow.

How to test and what to look for when doing your own repairs

When one of these goes bad you may see an error that would be 4x or 7x where x indicates thereel position, i.e. a 43 error code would indicate the reel reader on the third reel.

What is described below is for testing the reel reader card using this home built tester. The tester provides both a 50 volt source or a 5 volt source (switch selectable).

After describing this procedure I will tell you how to test the cards with out having to have a 50 volt source.

I designed and built a tester to make troubleshooting easier. I test the card and all of the photo-transistors
first, then I split the two halves of the card, one for cleaning but also so that I can use a dental tool, poking
it into the tiny opening to push the photo-transistor or IR Emitter back up and out of the small square opening. The photo-transistor/Emitter should be at something close to a 45 degree angle.

Once the bad components are pushed out of the way, I use my soldering iron to melt the solder on both leads at the same time while grasping the upper portion of the optic. It comes off very easily. Once removed use solder wick to remove the excess solder. You want to do this so that when you put in the new device the leads will be nearly flat on the PC board.

Replace the defective components and quickly tack one side, allow the solder to cool and then solder the other side. Once the other side has cooled you can go back and firmly solder the lead that was previously tacked. Reassemble and then retest to make sure that the optics are working properly. Tapping the top of the card lightly with the handle of a screw driver will show any intermittent connections.

The one question that may come up is what constitutes a bad device. Since the reader cards supply signals to TTL logic devices then we can use standard logic levels of 2.0 volts as a high and .8 volts as a low. When measuring the output of the photo transistor, if the voltage is less than 2.0 volts, while unblocked or higher than 0.8 volts when blocked then that photo-transistor (or emitter) is defective.

In the cards that I have repaired I typically see voltages of greater than 4 volts unblocked and .01 volts blocked for the 50 volt reader cards, 5 volt reader cards the unblocked voltage is 3.14 and the blocked voltage 0.2.
Test all of the emitters and photo-transistors first, the replace all defective ones. I make it a habit to clean the bulbs with alcohol on the 50 volt cards so that as much light as possible gets to the photo-transistor.

Testing reel readers without having a 50 volt source.

The 50 volt supply is only used to power the incandescent bulbs. They are in series along with the 470 ohm resistor. Each bulb requires 5 volts to operate properly.

You need a few basic items, a Volt/Ohm meter (DVM) , a 47K resistor, a light source (flashlight) and some clip leads and a 5 volt DC power supply

Split the cards by removing the 2 screws and lay the small card off to the side

If you lay the card flat on its back with the mounting bracket to the left then the pins at the bottom will number 1 through 16 from right to left
Measure the resistance between pin 16 and 14, Pin 16 is Vcc and 14 is Ground you should have a reading a bit above 500 ohms, indicating that the 470 ohm 2 W resistor and all of the bulbs are OK. If not in this range then you will have to remove the tape covering the backs of the bulbs and then measure resistance across each bulb individually. Remember the bulbs are wired in series like the old Christmas tree light strings.

Assuming that the bulbs and resistor are OK. Attach the ground lead of the volt meter and one end of the resistor to pin 14 (pairs 13/14)
of the card. Connect the other end of the resistor and the positive lead of the volt meter to pin 11.

Now using the 5 volt supply, apply 5 volts to pin 1 of the card and read the voltage, shine the light into the small (tiny) hole that is for Q1, voltage should be some where around 4.7 volts with the light on and some where less than 0.2 volts with the light off. Just keep in mind that ambient light might cause the light off reading to be higher. The acceptable voltage ranges need to be within the acceptable ranges used in ‘Logic” circuits so a logic high you need 2 volts or more and a logic low 0.8 volts or less.

You may find that if you have these readings, a Q-tip dipped into alcohol can be used to clean the top of the photo-transistor by pushing the Q-tip into the hole and then twisting the Q-tip. I routinely clean these as well as to clean the bulbs.

Repeat this process for each of the following pins 1, 3, 5, 7, 9

Other than pin 11, all of the other pins are in pairs

Pins 1 & 2 Collector of Q1
Pins 3 & 4 Collector of Q2
Pins 5 & 6 Collector of Q3
Pins 7 & 8 Collector of Q4
Pins 9 & 10 Collector of Q5

Pin 11, Common emitter
Pin 12 Missing (pin is cut off)

Pins 13 & 14 Ground
Pins 15 & 16 Vcc
This process is not nearly as quick or accurate as using the tester but should allow you to test each of the cards.

The 5 volt card testing process is not much different other than it is not necessary to split the cards and you need a 3K resistor instead of a 47K resistor.

Apply the 5 volts across pins 16 and 14 and then measure the voltage on the associated
pin pairs.
In this case the 3K resistor attached to pin 14 and pin 11 biases another transistor’s base (Q6), pulling it low so that it will turn on the IR Emitters. Remember to block the light for each IR emitter to see the photo-transistor transition to a low state.

Testing results for the 5 volt cards readers you will not read anywhere near 4.7 volts, they will be closer 3.0 volts for a high and about 0.2 volts for a low

Repair Tips for Power Supply

I have noticed that the schematic for the Bally E1000/E2000 power supplies list expected voltages, but, what does that mean?

I have a couple of these power supplies so I decided to do some testing to see what voltages were obtained under certain circumstances.

If you apply 12 VAC across pins 1 and 10 of the board J1 connector,you should be able to measure the voltages on the test points (+UR, ZC and 5V)

These voltage readings are based on a supply that has no load (nothing else connected)

UR = 15.96 VDC
ZC = 10.07 VDC
5v = 5.0 4VDC

One might think something is wrong because both UR and ZC are higher than the schematic states. However with no current we would expect to find the voltages higher, what matters is the voltage under load conditions.

The LM340-T5 Regulator has a maximum current output of 1 amp so using ohms law we know the voltage is 5 volts and the current is 1 Amp, Resistance can be calculated using the formula R=V/I (R=5/1) so R=5Ω, Now that we know what to use, we can figure out the wattage, this is rather simple, Watts = Amps x Volts so in this case we have 5 volts, 1 Amp so need 5 Watts. For testing I use a couple of 5Ω 5W resistors , actually, I use 20 Watt resistors to keep from burning my fingers. Anything smaller than 5W will burn and smoke is bad. The load resistors are placed across pins 13 and 20 of the J1 connector

To test the power supply drawing .5 amps we place 2, 5Ω resistors in series for a total of 10 Ω. With a 10 Ω load, drawing .5 amps these readings are fairly typical of what you should expect to see

UR = 12.16 VDC
ZC= 8.83 VDC
5v = 5.01 VDC

The final test is to test at full load, drawing 1 amp of current by removing one of the 5 ohm resistors so that only 5 ohms appears across pins 13 and 20 of J1, the readings you should expect to see would be.

UR = 7.57 VDC
ZC= 9.6 VDC
5v = 4.98 VDC

It would appear that the voltages shown on the schematic are voltages when the power
supply is measured with a full load.

I also recommend that when repairing these power supplies to remove the heat sinks from the bridge rectifier (BR1) and the 5 volt regulator (Q1). Clean off the old thermal heat sink compound and add new compound so that the heat transfer is more even. This will allow for maximum cooling.

The minimum voltage to expect from the LM340-T5 is 4.75 volts, if less than this then it is better to spend a couple of dollars and replace it.

Sometimes you will find that you have no voltage. In this case you want to check the 4 diodes and if the voltage seems to be half of what you expect then check the solder connections on the bottom side of the diodes. These will become bad because of heat. Other causes of no voltage is an open diode in the Bridge Rectifier (BR1).

I would recommend to anyone doing any type of repair work to invest in an ESR Meter. ESR means Equivalent Series Resistance and a high ESR can have adverse actions to your circuit. I have had several of these power supplies where despite changing the diodes, bridge rectifier and voltage regulator the output voltage was still below the regulators specified voltage of 4.75 volts @1 amp. These problems were resolved using my ESR meter and the discovery of the large 11,000 ufd capacitor having a high ESR value.

Can’t run Tests

I have seen many complaints of not being able to run the tests or clear errors on these E Series machines. If you have a light tower the WHITE light should be illuminated before the tests or resets can be done. This does not mean that a burnt out bulb will prevent this but only serves as a quick indication that you should be able to run tests or clear error codes. If you find that you are unable to run the tests or reset the machine, check the cherry switch behind the door hinges. If this switch goes bad it will signal the MPU board that the door is closed. Many owners of these E machines will bypass the door switch however the cherry switch must be operational

RAM Tester

Since many of the problems with the E Series slot machine are related to RAM failures I thought it would be a good idea to have one hanging around in my shop. I searched the web and located a guy that had developed a tester for testing the 6264 RAM chips. I sent him an email asking if this might be easily converted to test the 5101 RAM chip used in the Bally E Series slot machines and a large number of Bally Pinball machines. As it turned out he did not have a problem in making this modification as an ‘Engineering Change’ for me. My tester only tests the 5101 RAM chips, but NeoLoch Sales has since altered the design so that it will now test 5101, 6116, 21C14 and 9114 RAM Chips. It also will run on a 5, 12 volt power supplies or from a 9 volt battery.

For further information please visit his website NeoLoc the page will open in a new window. This tester is now obsolete and has been replaced by a newer more versatile version

If you have some electronic design work that you need to get done contact David, he is easy to work with and offers reasonable prices.

Table Of Contents

• Bally Technologies is one of the most popular slots developers in the world.
• The company was founded in 1968 as Advanced Patent Technology by Jack Solomon and Alvin Snaper.
• Since 2014, it is part of the Scientific Games group.
• On this list, you see all the best Bally slot machines to play in 2020.

If there's a name that is a true institution in the world of slot machines, this is Bally Technologies.

Mastering the art of crafting high-quality casino games since 1968, Bally Technologies is one of the few brands that managed to stay ahead of gambling trends for nearly half a century.

What started as a company devoted to creating immersive penny slots and fruit slots for brick-and-mortar casinos in Las Vegas and Atlantic City is today an online giant with a portfolio that includes some of the most popular slot machines in the world.

And that's where this list of the best Bally slots comes in.

Value Of Bally Slot Machine

Here's where you find all the best slot machines games created by Bally available for free and for real money.

From world-famous classics like Vegas Hits and the Quick Hit series to new slots like China River and Lady Robin Hood, this list of bally slots has got you covered.

All these slots come as no download games. Pick the ones you like and play on desktop, Android, iPhone, and iPad.

Real Money Players: To access the real money games you need to register at one of the casinos that offer Bally slots and add some money to your account.

Don't forget to activate your welcome bonus when you register to play. Also, keep an eye on our free spins collection to be the first to know when there's a new bonus to play Bally slot machine games.

Free Bally Slots: All Bally slots are available in freeplay mode, too. To play free Bally slots online, you need to be 18 or more and you have to register at one of the Bally casinos on this page.

_{Important Notice: please remember all that the Bally slots are gambling games that you should play for entertainment purposes and not to seek quick and easy wins. To know if you could be at risk of gambling-related problems, visit this page.}

Top 15 Bally Slots

And now that we know what are the best 15 Bally slot machines to play in 2020, let's have a look at each and every game to know what makes them special and why you should hit the reels.

China River

What's not to love about a colourful Asian game where the games start from as little as 1 cent?

China River is one of the newest games to come from Bally's kitchen and it's just what we feel one would expect from this developer.

A classic slot with a modern roaring engine ready to surprise you with extra features.

Bally's China River is available for desktop (Windows, Mac) and mobile (Android, iOS) both for free and for real money. As usual, you can play this game at all the top Bally casinos online that are allowed to offer gambling games in your country.

Lady Robin Hood

Available online since 2015, Lady Robin Hood is one of Bally's most played games at brick-and-mortar casinos in Atlantic City and Las Vegas.

Before you play, have a look at the dynamic paytable. It updates the numbers based on your bet size, so you can always know how much you could win if the symbols come up the right way.

88Fortunes Megaways

You can't call yourself a 'slot player' if you haven't played a good number of spins on 88fortunes, one of Bally's signature games.

The online version of this casino classic is as good as the one you played at slots rooms around the world.

In fact, the Megaways version of this online video slot is even better than the regular one, as it comes with more features.

With up to 117,649 ways to win and a top prize of 250,000 - this is one of the very best slot machines to play in 2020.

Sun Dragon

Part of the 'Quick Hit' series, Sun Dragon is an exciting Asian-themed slot machine that will capture your attention within seconds - and won't let go that easily.

Discover Bally's exclusive Ultra Pays action and explore all the 7,776 ways to win.

Sun Dragon features two scatter symbols: the Scroll and the Quick Hit:

• The Scroll Scatter. Collect three Scroll symbols, and then match three fireworks to win free spins. Another three Scrolls in the Bonus mode gives you eight additional spins.
• The Quick Hit symbols. Five to nine Quick Hit symbols will get you one of the five progressive Jackpots of Sun Dragon.

Crown Gems

Want to play a game that is both simple and beautiful at the same time?

Don't miss the Crown Gems slot machine. While this might be one of the simplest / most traditional Bally slots to play online, it's one of those games that can keep you busy for quite a while.

Ra & the Scarab Temple

Ra & the Scarab Temple is a one-of-a-kind adventure and one of the best Egypt slots out there.

The multipliers, the free spins bonus rounds, and the beautifully crafted Egypt-themed symbols made this Bally slot one of the very few 'evergreen classics' on this theme.

Triple Cash Wheel

Bring the fun of the best Vegas-style slot machines to your screen and triple the fun with Triple Cash Wheel, one of the top games ever created by Bally.

In this 'multi-slot' game you'll spin three sets of slots at the same time, experiencing Bally's hotshot technology in its full glory.

Fire up the game to have 60 paylines instead of 20, and three times the chance to land a lucky combination.

Lucky Link Beats

Pump up the volume and listen to some techno while you chase the four jackpots featured in Lucky Link Beats, definitely not your regular Bally slot machine.

Fu Dao Le

When it comes to Asian gambling games, Fu Dao Le is a classic that needs to be played.

Not only this is one of the most beloved slot machines by Bally Technologies, but you find it at almost every online and brick-and-mortar casino.

Yes, Bally's Fu Dao Le is that popular.

This online slot features 243 ways to win and a great number of bonuses and extra features that will make your gaming session always exciting.

Expanding Wilds, Clumped Wilds, Mystery Stacked Reels, and Red Enveloper Jackpots are just a small part of what's waiting for you here.

Sword of Destiny

Sword Destiny by Bally is a fantasy-themed slot machine with five reels, 25 paylines, and an RTP of 95.94 percent.

This real money game (or free demo, the choice yours) stands out from the crowd thanks to its Wilds. Clumped Wilds, Random Wilds, and Picture Wilds are all there to help.

Wonder Woman Gold

Join DC Comics world famous heroine in her fights against the evil and put all the cash in your pockets when no one is watching!

In Wonder Woman Gold, the founding member of the Justice League is there to serve you with up to 25 free games and three jackpots.

Lucky Tree

Did you know the 'Maneki-neko', the Chinese lucky charm is actually a Japanese figurine?

In Lucky Tree, the most popular lucky charm in the world is joined by colourful dragons, koi fish, and wise turtles in an adventure that they all hope will bring you the prizes you desire.

Collect three Scatters to trigged the bonus game to seek a big win during your set of 10 bonus free spins.

Dragon Spin

Launched in 2015, Dragon Spin is a 95.96% RTP video slot machine game by Bally that comes with scatters, bonus rounds, and free spins.

Available on mobile and desktop, this game plays on 50 paylines and sees you fight with all sorts of dragons to bring home one of the prizes.

Acorn Pixie

Here's another Bally game for those who like to cheat at slots and prefer to buy a bonus round rather than simply wait for the reels to align.

When you play the cute Acorn Pixie slot machine you can spin the reels like you'd do one any other video slot. Or you can buy yourself access to a bonus round and get six, eight, or 12 free spins.

Rocket Returns

To close this list of the best Bally slots, let's go back in time with Rocket Returns, a truly unique game with 8-bit graphics.

Test your luck on the 1-2-3-2-1 experimental layout and shuffle the reels to trigger winning combinations and bonus rounds.