Related Manuals for Panasonic TH-32A400G
Summary of Contents for Panasonic TH-32A400G
- Page 1 Order No. ITD1412904GE Model No. TH-32A400G/K/T/X/V TH-32A405D TH-32A408K TH-32A409K TH-32A410D/G/K/M/X/V Hints for Board Repair ( 32inch, 1 board model ) Ver. 1.0 Panasonic Corporation 2014 Unauthorized copying and distribution is a violation of law.
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Page 2: Signal Flow
Signal Flow (TNP4G573**) IC4900 (Y Pb Pr) IC8901 IC8902 Component EEPROM Video LED/ Remote (K Board) Audio IC6750 Demod Antenna Digital Video (IF) DEMOD Processor Video Resize MIX I/P conv. Pixel conv. HDMI AI Gamma IC8001 RTD2644... - Page 3 Troubleshoot of Picture Problem Is the picture of all Check the input circuit / IC8001 Input Source NG ? Check by LCD LCD Panel Panel Test Mode IC 8001 <LCD Panel Test Mode> :When abnormal picture is displayed, troubleshoot by the test pattern in LCD module. If the picture is no problem, A board must be defective.
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Page 4: Power Supply Distribution
Power Supply Distribution (1/2) The power on sequence is describe by the number of the symbol. ( 15th LCD Panel OFF/STB=38V D7507 D7800 ON= 71V 14th Module L7806/07 C7502 T7301 C7817 15th VLED Anode Cathode Q7801 14th (LED Backlight) Q7803 D7102 Rectifier Panel-PWM... - Page 5 Power Supply Distribution (2/2) IC8708 STB5.3V/STB5V STB3.3V/STB_M3.3V/V33AMAIN/ETN_3V3/V33IO/V33LVDS 3.3V STBRST Q8002 V33A/V33HDMI/V33POR SUB3.3V P16.3V IC8700 L8700 VCCK1.1V/V11CORE Remote 1.1V DCDCEN SUB-ON Tr x2 13th BL-ON / Panel-PWM DCDCEN2 JK8601 IC8702 L8702 IC5602 SUB5V BL-SOS (1 blink) IC8001 USB_Pwr Remote RTD2644 10th IC8707 KEY3 DDR1.8V/DDRV...
- Page 6 Troubleshoot of Power On Problem (1/2) Check by power on sequence ( from 13th < symptom > Check input voltage of F7101/CF7101 Check output voltage of IC7503 (16V) and No Power/No Operation Q7301/IC7301/D7317, STB5V, STB3.3V Check VLED voltage (38V) No or D7502/IC7503 at P2-3pin Low voltage...
- Page 7 Troubleshoot of Power On Problem (2/2) < symptom > Voltage Check of VLED Check short circuit of SOS 1 blink Just before shutdown LCD Panel Q7801,7803 (rise up from 38V to 71V) (71V) Shorted (38V or lower) Q7801,7803 (IC7800) Voltage Check of PWM Signal input (pin4) of C7800 IC7800 Rise up...
- Page 8 Parts Change Note 1. Add zener diode (DZ2J068M0L) to pad of C8759 (no use) POLARITY MARKING...
- Page 9 2. Add surge absorber (D4EDY5R5A038) to pad of C8782 (no use) 3. Add surge absorber (D4EDY5R5A038) to pad of C8707 (no use)
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Page 10: Parts Location
Parts Location Q7301 IC7503(STB5V) D7102 D7502 CF7101 D7507 IC7301 Q7801 F7101 Q7502 IC7800 Q7803 D7800 IC8707 (DDR1.8V) Q7510 L8702 (Left side=SUB5V) L8300 (Left side=PNL12V) L8700 (Left side=VCCJ1.1V) IC8711 (SUB3.3V) IC8708 (STB3.3V) IC8709 (TNR3.3V) IC8705 (TNR1.8V) -
Page 11: Revision History
Revision History Version Issued/Revised Revised content date Ver. 1.0 11.Dec.2014 First version...