NOTE:
1. RESISTOR
Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5%
tolerance carbon resistor, unless otherwise noted as the following marks.
1/2R = Metal or Metal oxide of 1/2 watt
1/2S = Carbon compsistion of 1/2 watt
1RF = Fuse resistor of 1 watt
10W = Cement of 10 watt
K =
±
10% G =
±
2% F =
±
1%
2. CAPACITOR
Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in
?
F, and the values more than 1 in pF.
All capacitors are ceramic 50V, unless otherwise noted as the following marks.
Electolytic capacitor
Mylar capacitor
3. The parts indicated with "
*
" have special characteristics, and should be replaced with identical parts only.
4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with all
controls at normal, line voltage 220 volts.
5. Waveforms are taken receiving color bar signal with enough sensitivity.
6. Voltage reading shown are nominal values and may vary
±
20% except H.V.
MODEL : 27WL55A / 27WL55E / 27WL55R / 27WL55T
SCHEMATIC DIAGRAM
WARNING
: BEFORE SERVICING THIS CHASSIS, READ THE "SERVICE SAFETY PRECAUTIONS" ON PAGE 3 OF
THIS MANUAL.
CAUTION
: The international hazard symbols "
" in the schematic diagram and the parts list designate components
which have special characteristics important for safety and should be replaced only with types identical to those in the
original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals. Before
replacing any of these components, read carefully the SERVICE SAFETY PRECAUTIONS on the MANUAL for this
model. Do not degrade the safety of the receiver through improper servicing.
Summary of Contents for 27WL55A
Page 4: ... 1 49 27WL55A E R T CONNECTOR ...
Page 5: ... 2 49 27WL55A E R T AV_JACK ...
Page 12: ... 9 49 27WL55A E R T TEXT_SW ...
Page 17: ... 14 49 27WL55A E R T SIGNAL ANALOG IN ...
Page 18: ... 15 49 27WL55A E R T SIGNAL D IN A ...
Page 19: ... 16 49 27WL55A E R T SIGNAL D IN B ...
Page 20: ... 17 49 27WL55A E R T SIGNAL HDMI Link I2C ...
Page 21: ... 18 49 27WL55A E R T SIGNAL HDMI Rx 2 Video Audio ...
Page 22: ... 19 49 27WL55A E R T SIGNAL HDMI Rx 3 PWR Audio ...
Page 23: ... 20 49 27WL55A E R T SIGNAL HDMI AUDIO PLL ...
Page 24: ... 21 49 27WL55A E R T SIGNAL HDMI AUDIO DAC ...
Page 25: ... 22 49 27WL55A E R T SIGNAL HDMI AUDIO OUT ...
Page 26: ... 23 49 27WL55A E R T SIGNAL HDMI CONTROLLER ...
Page 27: ... 24 49 27WL55A E R T SIGNAL EEPROM1 ...
Page 28: ... 25 49 27WL55A E R T SIGNAL EEPROM2 ...
Page 30: ... 27 49 402 3A 409 1B 27WL55A E R T SIGNAL OCM MEMORY I F ...
Page 31: ... 28 49 401 1A 409 1B 27WL55A E R T SIGNAL FLASH MEMORY ...
Page 32: ... 29 49 27WL55A E R T SIGNAL SYNC SEPA ...
Page 33: ... 30 49 27WL55A E R T SIGNAL E2P OTHER ...
Page 35: ... 32 49 27WL55A E R T SIGNAL CORTEZ REG 1 ...
Page 36: ... 33 49 27WL55A E R T SIGNAL CORTEZ REG 2 ...
Page 37: ... 34 49 27WL55A E R T SIGNAL CORTEZ REG 3 ...
Page 38: ... 35 49 27WL55A E R T SIGNAL BOOT CONFIG ...
Page 39: ... 36 49 27WL55A E R T SIGNAL SERVICE CONNECTOR ...
Page 41: ... 38 49 27WL55A E R T SIGNAL AUDIO 1 2 ...
Page 42: ... 39 49 8 5 5 27WL55A E R T SIGNAL AUDIO 2 2 ...
Page 43: ... 40 49 27WL55A E R T SIGNAL CORTEZ 1 ...
Page 44: ... 41 49 27WL55A E R T SIGNAL CORTEZ 2 ...
Page 45: ... 42 49 27WL55A E R T SIGNAL DDR I F ...
Page 46: ... 43 49 27WL55A E R T SIGNAL DDR SDRAM ...
Page 47: ... 44 49 27WL55A E R T SIGNAL DDR TERMINATION ...
Page 48: ... 45 49 27WL55A E R T SIGNAL DCDC CONV ...
Page 49: ... 46 49 27WL55A E R T SIGNAL LVDS OUT ...
Page 51: ... 48 49 27WL55A E R T SIGNAL Power Connector and Dimming ...
Page 52: ... 49 49 27WL55A E R T SIGNAL LVDS Power and Others ...