I have a pioneer PRO110-FD plasma tv with a 2 blink error code. What does the 2 blink error message mean

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
Blinking codes details of many popular brand TVs are given. Surf the site with patience.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electronicshelponline.blogspot.com/
http://electro-medical.blogspot.com/
Blinking codes details of many popular brand TVs are given. Surf the site with patience.
If blinks continue without any pause, the main board is faulty.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

check for shorted components on YSus board and Y Driver boards (the boards on the left with the back off) This job is for a tech type person.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power led, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

Nine blinks - Indication of shorted/leaky diodes - D6116 and D6301 on the "G" board. Panel Module Error or Thermal Error. Unless you are technically experienced, this can only be repaired by an authorised service centre. Obtain a quote for this, the parts are inexpensive, but labour costs might not be.

If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching IC regulator on the "G" board or check connections. Make sure the regulator is -12V or -13V (negative rail).

If the repair is done by an approved workshop, they will clear the error codes (standby LED blinks) as part of their 'soak-testing' and it should reset the TV back to factory condition. Remember to ask about what work was done and if the errors have been cleared/reset before you pay their bill.

Sounds more like blown/exploding capacitors on the PSB-Power Supply board. No OSD-on screen display a blinking led or chatter/relay clikcing at startup is the tv going into fault protection and bypassing the startup pins. The YSUS-Main controls the pic which is attached to 2 buffer boards the YBU-upper YBL-Lower. They control the upper and lower portion of the OSD and the YSUS controls both of them. Since you're getting No OSD you need to check for blown caps on the PSB first. Unplugging the set resets the error again. So you start all over again.

Best Rgards and Semper Fi

Could be heat build up in the Plasma display unit. Make sure it has the correct space around it for proper ventilation. Also count the number of blinks on the power indicator it is a code for the reason the unit shut down. On the Pioneer PDP-5060HD I have I was getting 12 blinks on the indicator which indicated a tuner issue. Check your instruction book for info on the over heating problem if it continues. You may have a fan out.

The 3 blinks ( i assume they're blinking in red) means a scan assy problem. Check the scan A & B boards and the Y drive board. Something is shorted and loading down the Vscan voltage of the power supply.

C-Dog

If the buffer drive bds. were replaced along with the ysus and zsus and this problem occured it is definately and defective pdp.