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Panasonic Viera TC-P42X1 Technical Manual Download Page 32

SOS Detect

 

(Shutdown)

When an abnormality occurs in the unit, the “SOS Detect” circuit is triggered and the TV shuts down. 
The power 

LED on the front panel will flash a pattern indicating the circuit that has failed.

If the power LED continues to blink even after the TV is unplugged, press and hold the power switch 
on the TV for a few seconds until the LED turns off.

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Summary of Contents for Viera TC-P42X1

Page 1: ...echnology Company National Training Technical Guide 2009 Plasma HD and FHD TV 12th Generation Model TC P42PX1 TC P42X1 TC P50X1 TC P42S1 TC P46S1 TC P50S1 Applies to models TTG090306CP 090306 https ww...

Page 2: ...Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service informa...

Page 3: ...PMUSOSDetect 39 2 Blinks Error Code 40 Troubleshooting 2 Blinks ErrorCode 41 Subject Slide 3 Blinks 4 Blinks Error Code 42 5 Blinks Error Code 43 Troubleshooting a 5 BlinksError Code 44 6 Blinks Error...

Page 4: ...cs Introduction Series Line up Features Comparison Technical Changes Standby Power On Operation Shutdown Circuit Explanation Troubleshooting Boards Isolation Service Notes https www werbemousepads de...

Page 5: ...ce Blu ray and DVD player and home theater receiver VIERA Link permits operation of a network camera A VIERA Link capable Network Camera BL C210A can be connected to a VIERA HDTV and controlled via VI...

Page 6: ...0 TC P50G10 TC P54G10 S1 SERIES Full HD TC P42S1 TC P46S1 TC P50S1 TC P54S1 TC P58S1 TC P65S1 U1 SERIES Full HD TC P42U1 TC P46U1 TC P50U1 X1 SERIES HD TC P42X1 TC P50X1 C1 SERIES HD TC P42C1 TC P50C1...

Page 7: ...ill be available in the summer of 2009 in the new TC 54Z1 54 inch class screen size V10 Series The VIERA V10 series are slim 2 inch thin plasma HDTVs Digital Cinema Color TM 65 38 1 15 1 73 which help...

Page 8: ...vailable in May 2009 S1 Series The VIERA S1 represents the first VIERA plasma series to feature the new NEO PDP designs THX certified displays together with VIERA Image Viewer Full Time 1080 TV lines...

Page 9: ...n focus VIERA Image Viewer for photos playback VIERA Link control of all compatible A V home entertainment components via a single remote Improved native contrast ratio of 30 000 1 an Infinite Black p...

Page 10: ...X X X X X X X LAN Port X X X X X THX X X X X X Viera Cast X X X X X Viera Link With Network Camera X X X X X AVCHD MPEG2 JPEG playback Thru SD Card X X X X X 1080 Lines Moving Picture Resolution X X X...

Page 11: ...X1 No Fans Power Consumption Maximum 286 W Standby condition 0 3 W Weight 57 4 lb TH 42PX80U No Fans Power Consumption Maximum 385 W Standby condition 0 3 W Weight 56 7 lb TH 50PX80U No Fans Power Con...

Page 12: ...VIErA Technology https www werbemousepads de pdf...

Page 13: ...New Sports and other fast action scenes are stunningly clear To improve the moving picture resolution frames are generated at the sub field level With a frame generated each 1 60th of a second images...

Page 14: ...Picture Resolution 900 lines or more The resolution can be different between static versus dynamic As you are watching moving images that is the resolution that Panasonic quotes It might be 1300 for a...

Page 15: ...ent in the image and reflects it in each individual sub field to achieve smooth playback with minimal blurring What s Sub field Plasma TVs express a single frame of an image by using multiple images e...

Page 16: ...night scenes is beautifully rendered A high contrast is achieved by NeoPDP technology This newly developed highly efficient panel creates a larger difference between maximum brightness white and minim...

Page 17: ...s Screen reflections are cut when viewing in bright rooms This filter minimizes light reflections Panasonic s unique low reflection filter greatly reduces the reflected light intensity compared with t...

Page 18: ...obstacles between the transmitter and receiver the surrounding environment or the building structure With regard to the installation environment should the Wireless HD System be installed in hot areas...

Page 19: ...g to worry about the direction that the remote control is pointed This allows easy operation of a Tuner that is placed inside an AV rack Note This remote control uses 2 4GHz frequency Please do not pl...

Page 20: ...ED on the SS board Connection between the SC board and the SS board Connection between the SC board and the SS board SC3 SS3 A board location New New New No STB5V jumper on the SS board New https www...

Page 21: ...oard SS34 The jumper is now on the P board P34 There is no relays click at plug in There is a cable between the SC board and the SS board The Key input line for CH UP CH DWN VOL UP VOL DWN Menu and IN...

Page 22: ...S Series Full HD https www werbemousepads de pdf...

Page 23: ...Connectors Boards Location TC P42S1 https www werbemousepads de pdf...

Page 24: ...er HDMI Interface Peaks Lite 2 Full HD Newly Added SD Card Slot Fan Control Format Converter Plasma AI Sub Field Processor P Power Supply C1 Data Driver Right S Power Switch C2 Data Driver Left SC Sca...

Page 25: ...Standby Operation https www werbemousepads de pdf...

Page 26: ...connected to A25 is not used during standby operation The STB5V from pin 5 of connector P7 is connected to pin 13 of connector A6 and is applied to a 3 3V regulator to power the Main CPU IC1100 on the...

Page 27: ...Power On https www werbemousepads de pdf...

Page 28: ...e ICs are called SUB5V SUB9V SUB3 3V SUB1 8V SUB1 3V and BT30V They used by various circuits on the A board To avoid catastrophic failures they are monitored by an SOS Detect circuit IC5480 for over v...

Page 29: ...Sub Voltages https www werbemousepads de pdf...

Page 30: ...and they are only used by the A board The sub voltages are developed when the power is turned on The F 15V from the P board is the source that supplies the DC DC converter circuit IC5401 IC5603 and I...

Page 31: ...0 times To troubleshoot a PDP TV that is shutting down and the power LED blinks 10 times Find out if 15V is output at pin 7 8 or 9 of connector P6 of the P board If no voltage is output the P board ma...

Page 32: ...nd the TV shuts down The power LED on the front panel will flash a pattern indicating the circuit that has failed If the power LED continues to blink even after the TV is unplugged press and hold the...

Page 33: ...SOS Blinking Timing Chart https www werbemousepads de pdf...

Page 34: ...SOS Detect Block Diagram TC P42S1 https www werbemousepads de pdf...

Page 35: ...Panel Drive SOS Detect Block Diagram TC P42S1 https www werbemousepads de pdf...

Page 36: ...Panel Drive SOS Detect Block Diagram TC P42X1 https www werbemousepads de pdf...

Page 37: ...of the unit The Panel MPU IC9003 of the A board Located on the D board on previous generations detects conditions that make the power LED blinks1 2 3 4 5 6 7 8 or 9 times The Main MPU IC1100 of the A...

Page 38: ...high is provided to pin 65 As a result the unit shuts down and the power LED blinks 6 times The TC P42X1 series monitors the sustain board output This signal is connected to the recovery circuit in t...

Page 39: ...ance the resulting current change is applied to pin 36 of the main CPU IC1100 This triggers the Fan SOS and the TV shuts down The power LED blinks 11 times 12 Blinks SOS The operation of the audio pow...

Page 40: ...links Error Code 1 Missing P15V 2 A short of the P15V 3 Wrong diagnostic by the A board These 3 conditions can cause the TV to shutdown and the power LED to blink 2 times https www werbemousepads de p...

Page 41: ...short circuit drawing excessive current To check for a short circuit measure the resistance between pin 1 of connector P6 and ground Chassis If P15V is shorted find out if the short is coming from the...

Page 42: ...suspect when the TV shuts down and the power LED blinks 3 times Replace the A board Primarily the P board causes 4 blinks followed by the A board To troubleshoot a 4 blinks condition measure the volt...

Page 43: ...of the P5V 3 A short of the Vda line Note missing Vda from the P board does not cause 5 blinks 4 Wrong diagnostic by the A board These 4 conditions can cause the TV to shut down and the power LED to b...

Page 44: ...no voltage is output measure resistance between pin 5 of connector P25 and ground Chassis If P5V is shorted find out if it s created on the P board or if it s created on any of the other boards that t...

Page 45: ...tor Error detect IC16581 The output voltage is compared to 2 reference voltages derived from the P15V If the output of this circuit drops below 5 2 or goes above 11 8V the output of the comparator IC6...

Page 46: ...6 Blinks Error Code TC P42X1 https www werbemousepads de pdf...

Page 47: ...operation of the sustain output circuit The energy recovery circuit in the SC board uses a comparator Error detect IC16581 to monitor the operation of the scan and sustain output circuits The output v...

Page 48: ...DRV RST Block Diagram TC P42S1 https www werbemousepads de pdf...

Page 49: ...oard via connector C11 A31 C21 A32 to activate the 5V SENSE circuit A voltage divider in the C1 board develops a voltage drop that causes the collector of transistors Q9301 to become low As a result t...

Page 50: ...DRV RST Block Diagram TC P42X1 https www werbemousepads de pdf...

Page 51: ...d circuit monitors the scan circuit output the 15V_F the scan_pro Vscan and the physical connection between the SC board and the SU SD board CHA If any abnormality occurs on any of these lines or Vsus...

Page 52: ...8 Blinks Error Code TC P42S1 https www werbemousepads de pdf...

Page 53: ...energy recovery circuit is also used to monitor the operation of the sustain drive circuit If this circuit is triggered a high is provided to the anode of D16255 to trigger a shutdown To determine if...

Page 54: ...8 Blinks Error Code TC P42X1 SS_Flexible Printed Circuit FPC _Detect SOS8_SS TC P42X1 https www werbemousepads de pdf...

Page 55: ...s is open Q16280 turns off and a high is provided to the anode of D16280 D280 This high is provided to pin 66 of the CPU in the A board When this happens the TV shuts down and the power LED blinks 8 t...

Page 56: ...11 Blinks Error Code https www werbemousepads de pdf...

Page 57: ...line To control the speed of the fan a Fan Max command from pin 44 of IC1100 is output to the fan control IC5740 To keep the unit cool the fan control voltage output from IC5740 to the fans ranges bet...

Page 58: ...Boards Isolation Procedure Caution Do not let the TV run for more than 30 seconds while connectors or boards are disconnected https www werbemousepads de pdf...

Page 59: ...tion it can be isolated for confirmation To isolate the Scan Drive Section SC SU and SD board remove connectors SC2 Vsus and SC20 P 15V P 5V and scan pulses from the SC board and connector SS33 from t...

Page 60: ...ondition Unplug connector SS11 and connector SS33 Press the power switch If the TV no longer blinks 8 times then the SS board is defective Note 2 In order to get to SS33 the A board has to be removed...

Page 61: ...blinks condition Unplug connector SS23 Press the power switch If the TV no longer blinks 8 times then the SS board is defective Note 2 In order to get to SS23 the A board has to be removed Remove the...

Page 62: ...SU SD Boards Isolation https www werbemousepads de pdf...

Page 63: ...Note This procedure could be useful when troubleshooting 7 blinks problems Beginning last year 2008 the new plasma models are now designed not to turn on if either the SU or SD board is disconnected...

Page 64: ...opens the interlocked connection between VF_GND and CHA on the SC board This floats point CHA and a high is output to connector SC20 triggering shutdown To isolate the SU board Remove the 2 VF_GND sc...

Page 65: ...ns the interlocked connection between VF_GND and CHA on the SC board This floats point CHA and a high is output to connector SC20 triggering shutdown To isolate the SD board Remove the 2 VF_GND screws...

Page 66: ...Signal Process Block https www werbemousepads de pdf...

Page 67: ...Signal Process Block Diagram https www werbemousepads de pdf...

Page 68: ...8001 where the video signal is extracted and converted to YUV data The output is provided to the Video Input I F for selection The JPEG data of the SD card enters the JPEG I F section of IC8001 for co...

Page 69: ...Service Notes https www werbemousepads de pdf...

Page 70: ...on the main unit or the POWER button on the remote control Key command 1 button Main items Selection in forward direction 2 button Main items Selection in reverse direction 3 button Sub items Selectio...

Page 71: ...or 5 seconds or disconnect the AC cord from the wall outlet To Exit the Self Check Mode Press and hold the Power button on the TV for 5 seconds or disconnect the AC cord from the wall outlet TV volume...

Page 72: ...Self Check Menu https www werbemousepads de pdf...

Page 73: ...o reset the TV Press and hold the VOLUME button on the TV and press the MENU button on the remote control for more than 3 seconds Note All customer programmed parameters will be erased To Exit Disconn...

Page 74: ...solution of the Image The number of pixels of a digital image is expressed by the product of the number of pixels dots in the horizontal direction and the number of pixels dots in the vertical directi...

Page 75: ...as It is based on the H 264 MPEG 4 AVC video compression standard Audio is stored in compressed form Dolby AC 3 The container format for the audio and video is MPEG transport stream H 264 H 264 is a s...

Page 76: ...to one channel which uses one cable and is known as composite video An option known as S video or Y C video keeps the luma separate from the color signals using one cable but with separate wires inter...

Page 77: ...The End https www werbemousepads de pdf...

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