PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 1 Service Navigation 1.1. Introduction This service manual contains technical information which will allow service personnel´s to understand and service this model. Please place orders using the parts list and not the drawing reference numbers.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 2 Service Mode INDICATIONS FOR ERROR CONDITIONS Each Indicator facilitates finding the cause of an error. When an error is detected, the Lamp goes off and the indicators on the front flash.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN PARTS LOCATION <Front View> Power Switch /Operation P.C.B. Front Jack /Operation P.C.B. POWER LED LAMP LED SD/HDMI P.C.B. Front Cover Unit Front Door <Rear View> OPT/TV Unit RF AMP Front Fan Power Supply P.C.B.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 SERVICE ADJUST MODE Service Adjust Mode Enter: In this mode, the following information can be confirmed on the VOLUME DOWN button + RECALL key (3 times) (in power on condition)
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 ADJUST 1/4~4/4 Perform the Contrast adjustment by pressing OK key when replacing EEPROM IC (IC8201). (Not used for service) 3 key 3 key 3 key 3 key A D J U S T...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 OPTION 1/3~3/3 Confirm the current elapsed “Lamp operation” time in hours, in hexadecimal. (limit: FFFF) Current elapsed "Lamp operation" time eg.) 01F5 501 hour 3 key 3 key O P T I O N...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MMD-CHK 1/8~8/8 and internal pattern Perform the Picture Position adjustment by pressing VOL+/- key, and display the internal pattern for LCD-CHK, GC-CHK. 3 key 3 key 3 key 3 key...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 EEPROM IC (IC5504) CAUTION LAMP CAUTION The Lamp Unit becomes very hot during operation. When DO NOT copy any of data of EEPROM IC (IC5504) on the Main replacing the Lamp Unit, wait until it has cooled off (1 hour or P.C.B.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 3 Troubleshooting Guide 3.1. Troubleshooting Hints for Component Level Repair MAIN PARTS LOCATION <Front View> Power Switch /Operation P.C.B. Front Jack /Operation P.C.B. POWER LED LAMP LED SD/HDMI P.C.B.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 INDICATIONS FOR ERROR CONDITIONS Each Indicator facilitates finding the cause of an error. When an error is detected, the Lamp goes off and the indicators on the front flash.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 [POWER Indicator three blinks] Abnormal voltage (SUB+5V line) detection circuit SUB+5V IC1107 IC6004 (TV MICROCONTROLLER) Normal REG. SUB+5V SENS SOS: 0V on SUB+5V line MAIN P.C.B. [POWER Indicator four blinks] Abnormal voltage (MAIN+3.3V line) detection circuit...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 [POWER Indicator nine blinks] Communication error between Peaks (IC8001) and TV microcontroller (IC6004) detection circuit IC6004 (TV MICROCONTROLLER) IC8001 (PEAKS) Normal PANEL STATUS (SOS (L)) PANEL STATUS (SOS (L)) MAIN P.C.B.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 [LAMP Indicator eight blinks] LAMP Fan stops detection circuit [LAMP Indicator nine blinks] OPT Fan stops detection circuit [LAMP Indicator ten blinks] Front Fan or Rear Fan stops detection circuit [LAMP Indicator eleven blinks] Rear Fan or Front Fan stops detection circuit [LAMP Indicator twelve blinks] Rear Jack P.C.B.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 AC stop detection circuit T801 D802 FULL-WAVE STBY+7V RECTIFIER IC6004 (TV MICROCONTROLLER) Normal Q803-Q805 D811 AC VOLTAGE AC STOP (L) DETECT POWER P.C.B. MAIN P.C.B. Over current detection circuit...
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 How to solve problems indicated by the Error Indication (The symptom of all errors is that the Lamp goes off) Note: Before performing troubleshooting, confirm that all connector cables in the unit are connected correctly.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 How to solve problems indicated by the Error Indication (The symptom of all errors is that the Lamp goes off) Note: Before performing the troubleshooting, confirm that all connector cables in the unit are connected correctly.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Note: LAMP DOES NOT LIGHT UP 1. Before performing troubleshooting, confirm that all connector cables are connected properly. 2. When repeating troubleshooting, be sure to Plug in the AC Cord.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 CHECKING THE POWER P.C.B. Disconnect all Power P.C.B. connector cables, then remove Power P.C.B. from the unit. Refer to Power P.C.B. Service Position, Figure 1. Check the following parts on the Power P.C.B. with the tester.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Plug in the AC Cord. Check the voltage at the following points. Check the parts (Ref No. 800 series) on the Power P.C.B. and Between Pin 1 and Pin 2 of CN851: approx. +120 V replace any defective parts.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Power P.C.B. Service Position AC Cord RL801 RL802 TP805 To AC outlet TP810 TP1001 CN1003 Pin9 of IC1001 jumper wire TP1002 (component side) Figure 1...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 CHECKING THE OPT/TV UNIT (MAIN P.C.B.) Take out the OPT/TV Unit without the Connectors CN3502, CN4501, CN5503 and CN8201 connected. Then, remove the Main PCB Shield Case Top. Refer to OPT/TV Unit (Main P.C.B.) Service Position, Figure 2.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 OPT/TV Unit (Main P.C.B.) Service Position High voltage generated. No connection No connection No connection OPT/TV Unit Test Points for checking the voltage on the Main P.C.B. TP1203 TP1109...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 LED on the Main P.C.B. for Digital CH - D8801: Sync Lock LED (When Sync of Digital packet (MPEG2) is locked by IC8802, it lights up in RED) - D8802: Error LED (When MPEG data has many errors (Block noise in screen), it flickers in RED.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 4.2. Service Position MAIN P.C.B. CHECK (1) It is possible to check the component side of the Main P.C.B./Drive P.C.B. The following original parts are not installed: Rear Jack Holder...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. CHECK (2) It is possible to check the foil side of the Main P.C.B./Drive P.C.B. For more details, See Fig. S2-1, S2-2 The following original parts are not installed:...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. CHECK (3) It is possible to check the component side of the Main P.C.B./Drive P.C.B. Note: Connections are the same as Fig. S2-2. For more details, See Fig. S2-1, S2-2 The following original parts are not installed: Relay PCB.s...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. CHECK (4) It is possible to perform the Polarizer adjustment. Note: Connections are the same as Fig. S2-3. For more details, See Fig. S2-1, S2-2 The following original parts are not installed:...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Note for Service Position: 1. The optical parts will be exposed to the dust in the air when the Top Duct Unit is removed. It is strongly recommend that it should be done in a clean room.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 POWER P.C.B. CHECK It is possible to check the Power P.C.B. only with no load. Power P.C.B. Service Position AC Cord RL801 RL802 TP805 To AC outlet TP810 TP1001...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Detailed View for Service Position Note: Take care not to apply excessive pressure to the LCD Panel FPC when servicing. LCD Panel FPC Relay PCB Relay PCB LCD Panel Flat...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Detailed View for Service Position LCD Panel Flat Extension Cables (LSUA0062) CN2201 CN2001 Relay PCB (Drive side) CN2101 (LSEP3244A) CN2901 LVDS Cable (B to B) (K1PY31Y00003) 4 Pin Extension Cable...
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 4.3. Replacement Procedures for CSP (Chip Size Package) IC IC Location Make sure to install IC in the correct position on the P.C.B. as shown. Main P.C.B. Pin 1 Index...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Temperature Profile for Heat Resistance of CSP IC - IC2501 (CSP IC) on the Drive P.C.B. <Bottom View of IC2501> TEMPERATURE PROFILE FOR HEAT RESISTANCEOF THIS IC 10 ± 3 sec.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 - IC8001 (CSP IC) on the Main P.C.B. <Bottom View> TEMPERATURE PROFILE FOR HEAT RESISTANCE OF THIS IC 10+/-3 sec. 150 ~ 170 C 220 C 20 ~ 50 sec.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 - IC7101 (CSP IC) on the Main P.C.B. <Bottom View> TEMPERATURE PROFILE FOR HEAT RESISTANCEOF THIS IC 10 +/- 3 sec. 150 ~ 170 C 220 C 20 ~ 50 sec.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 5 Disassembly and Assembly Instructions 5.1. Optical Section DISASSEMBLY METHOD FOR OPTICAL UNIT When reassembling, perform the steps in reverse order. Bend, route and dress the wires as they were originally.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 4. 1) Disconnect Connectors CN2001, CN2101, CN2201 (LCD Flexible Flat Cable). 2) Remove the Drive P.C.B. by removing the 2 screws. (CN2901 is disconnected.) 5. 1) Remove the Drive Support Metal Plate by removing the 2 screws.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 6. Remove the Main PCB Shield Case Bottom by removing the screws. Main PCB Shield Case Bottom Fig. P1-3...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 REMOVAL OF THE POLARIZER UNITS 1. Remove the Main PCB and the Main PCB Shield Case Bottom. Refer to Steps 1~5 in "REMOVAL OF THE MAIN P.C.B. AND THE DRIVE P.C.B. FROM THE OPT/TV UNIT."...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 REMOVAL OF THE OPTICAL BLOCK UNIT (Projection Lens Unit and LCD/Prism Unit) 1. Remove the Main PCB Shield Case Top. Refer to Steps 1~3 in "REMOVAL OF THE MAIN P.C.B. AND THE DRIVE P.C.B. FROM THE OPT/TV UNIT."...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 REMOVAL OF THE FAN CASE UNIT (OPT FAN), THE P/S CONVERTER, THE INTEGRATOR 1 AND THE INTEGRATOR 2 1. Remove the Lamp Ass’y. Refer to Step d in "HOW TO REPLACE THE LAMP UNIT" in the service manual (Vol.1).
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 6. Remove the Integrator Block Ass’y by removing the 4 screws. 7. 1) Remove the three Integrator 1 Springs by removing the 3 screws. 2) Remove the Integrator 1 from the Integrator Holder Unit.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 View A View B Integrator Holder Unit PS Springs Integrator 1 Springs P/S Converter Tabs of PS Holder Integrator 1 Spring See Reassembly Note 1 Reassembly Note 2: Move into the position so that it is touching the 4 portions.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 6 Measurements and Adjustments 6.1. Adjustment Procedures 2 TEST EQUIPMENT To do all of these electrical adjustments, the following equipment is required. 1. Video Pattern Generator (480i/1080p) 2. Plastic Tip Driver and Non-Metal Driver 3.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 INPUT TERMINAL INFORMATION CONTRAST ADJUSTMENT (Automatic Adjustment) PC Input Terminal Video Input 1 Terminal Note: When replacing the EEPROM IC (IC8201), perform this adjustment. 1. Enter the Service Adjust Mode. Then, press 1 key once on the remote to enter ADJUST 1/4 screen.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 SET UP for VCOM Adjustment: 1. 1) Remove the Rear Cover Unit. 2) Disconnect Connector CN6005 on the Main P.C.B. 3) Connect Connector CN6005 and PC (1) with the 8 Pin Extension Cable, the 7 Pin Extension Cable, the Relay PCB, the RS232C I/F Tool, the D-Sub 9 Pin Serial (RS232C) Cable.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VCOM ADJUSTMENT PROCEDURES: 1. Supply 70% Red Horizontal signal. 2. Select "VCOM RED ADJUSTMENT" in menu. Purpose: 3. Adjust "VCOM RED ADJUSTMENT" by pressing 4( To set the optimum LCD common voltage.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 WHITE BALANCE ADJUSTMENT 1. Adjust R-CUT and B-CUT by pressing VOL+ or VOL - key so that the area around (A) becomes pure gray with no red or blue tint.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 (HD signal) 13. Set COLOR TEMP to COOL by pressing 7 key. 14. Copy the NORMAL values which were adjusted in steps Note: 11, 12. This method is for use with PC which has a 1080p video...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 POLARIZER ADJUSTMENT POLARIZER GREEN ADJUSTMENT 1. Loosen a Screw (A) of the Polarizer Green Unit. (Mechanical Adjustment) 2. Move the Polarizer Green Unit to the right and left so...
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 7 Maintenance 7.1. Cleaning Methods THE LCD PANEL OF THE OPTICAL BLOCK UNIT 1) Clean the surface of the LCD Panel of the LCD/Prism Unit with an air blower or wipe with a clean, or soft blush lightly.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 8 Block Diagrams POWER SUPPLY BLOCK DIAGRAM POWER P.C.B. MAIN P.C.B. RUSH T1002 TP1102 TP1103 F801 CURRENT L802 PROTECTOR L1001 D1001 8A 125V R1026 C1002 SOUND+18V CN804-1 AC LINE...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VIDEO SIGNAL PATH I BLOCK DIAGRAM VIDEO SIGNAL AUDIO SIGNAL REAR JACK P.C.B. MAIN P.C.B. JK3503 IC8001 (PEAKS) VIDEO OUT CN3501-18 CN3001-18 IC3001 (VIDEO SW) JK3504 COMPONENT CN3501-10 CN3001-10...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VIDEO SIGNAL PATH II BLOCK DIAGRAM VIDEO SIGNAL AUDIO SIGNAL MAIN P.C.B. IC5501 (EEPROM) IC5510 (HDMI INTERFACE AD CONVERTER) IC5504 (EEPROM) MAIN+5V I2C SERIAL CLOCK I2C SERIAL CLOCK I2C SERIAL CLOCK...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VIDEO SIGNAL PATH III BLOCK DIAGRAM VIDEO SIGNAL MAIN P.C.B. IC7101 (DIGITAL SIGNAL PROCESS) IC7119 (FPGA/LVDS TRANSMITTER) R DATA (8BIT) R DATA (8BIT) R7132,R7395 N1-N3,P2 R28,T28-T30, N2,N5,P2-P5, P3,T3,U2,U3 U28-U30,V30...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 VIDEO SIGNAL PATH IV BLOCK DIAGRAM VIDEO SIGNAL DRIVE P.C.B. IC2501 (LCD VIDEO PROCESS) LCD/PRISM UNIT LCD(R) G2,G4,H1-H4,J1-J4, K2,K4,L1-L4,M1-M4, CN2001-(14-23) N2,N4,P1-P4,R1-R4, IC2901 (LVDS RECEIVER) T2,T4,U1-U4,V1-V4, CN2001-(26-35) CN2001-(54-63) CN2001-(66-75) TA2+...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 AUDIO SIGNAL PATH BLOCK DIAGRAM AUDIO SIGNAL TUNER P.C.B. MAIN P.C.B. REAR JACK P.C.B. MAIN P.C.B. TU8970 (TUNER UNIT) IC4001 IC4501 SPEAKER (AUDIO DSP) (AUDIO POWER AMP) AUDIO(R) CN8970-5...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 SYSTEM CONTROL BLOCK DIAGRAM MAIN P.C.B. DRIVE P.C.B. IC5510 (HDMI INTERFACE/AD CONVERTER) IC8001 (MAIN MICROCONTROLLER) IC8201 (EEPROM) IC6004 (TV MICROCONTROLLER) I2C SERIAL CLOCK1 I2C SERIAL CLOCK1 I2C SERIAL CLOCK3 I2C SERIAL CLOCK3 SUB+3.3V...
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 9 Schematic Diagrams 9.1. SCHEMATIC DIAGRAM & CIRCUIT BOARD LAYOUT NOTES 1. Important safety notice 3. Parts marked "PT" are not used in any models included Components identified by the sign have special in this service model.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 9.2. MAIN SCHEMATIC DIAGRAMS MAIN I SCHEMATIC DIAGRAM VIDEO SIGNAL AUDIO SIGNAL IC8001 R8084 PT MN2WS0039A TO M X CLKOUT IC8001 MVCLK TO M VII VI1ENB IC8001 VI1ENB MCLK...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN II SCHEMATIC DIAGRAM VIDEO SIGNAL 1.8V_DDRI/F TO M I SUB3.3V DDR2 #0 IC8202 C3ABSG000039 (SDRAM) C8209 TO M I CH0DM0 IC8202 0.1u[KB] IC8202 IC8202 CH0DM1 TO M I...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN III SCHEMATIC DIAGRAM SUB3.3V SUB3.3V SUB5V R8519 R8520 EXB38V473JV EXB38V473JV AA_EA0 TO M I AA_EA1 R8426 TO M I AA_EA2 EXB38V560JV TO M I AA_EA3 TO M I...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VII SCHEMATIC DIAGRAM L5028 68ohm R5650 120 C5539 AVDD L5029 68ohm R5651 120 REFOUT HDMI_INT2 HDMI_INT2 TO M V C5572 DVDD R5611 0.1u[KB] 0.1u[ZF] C5619 TP5515 TP5516 IC5510...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VIII SCHEMATIC DIAGRAM VIDEO SIGNAL AUDIO SIGNAL R8820 TP8807 EXT_TS_OUT FL8806 AG_RF_AFT1 AG_RF_AFT1 TO M VI TP8808 L8826 TNR_L_AUDIO TNR_L_AUDIO TO M IX J0JCC0000100 EXC3BB221H TP8809 Front End...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VIII SCHEMATIC DIAGRAM Front End FRONT_LSI AP_IFAGC_CONT 3.30V 3.3V AP_IFAGC_OUT SUB5V 5.00V L8828 C8841 J0JHC0000045 R8902 Q8804 2SB1218AHL FL8803 (BUFFER) J0MAB0000164 R8824 R8920 0 R8919 PT C8882 0.1u[KB] TO TUNER P.C.B.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN VIII SCHEMATIC DIAGRAM AUDIO SIGNAL VIDEO SIGNAL R8820 TP8807 EXT_TS_OUT FL8806 AG_RF_AFT1 AG_RF_AFT1 TO M VI TP8808 L8826 TNR_L_AUDIO TNR_L_AUDIO TO M IX J0JCC0000100 EXC3BB221H TP8809 L8827 TNR_R_AUDIO...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN IX SCHEMATIC DIAGRAM VIDEO SIGNAL AUDIO SIGNAL DTV9V L3002 R3035 R3030 PC_R C3047 C3049 R3036 Q3001 0.1u 2SC584500L (BUFFER) PC_G R3032 C3050 CN3002 PC IN PC_B FL3001 PC_H...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE I SCHEMATIC DIAGRAM VIDEO SIGNAL R2OUT_2 L2501 J0JDC0000105 R2OUT[0] R2OUT[0] TO D IV, D IV R2OUT_4 L2538 J0JDC0000105 R2OUT[2] R2OUT[2] TO D IV, D IV R2OUT_6 L2539 J0JDC0000105...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE I SCHEMATIC DIAGRAM G1OUT_8 L2586 G1OUT[6] J0JDC0000105 G1OUT[6] TO D V, D V K16 GND IC2501 L16 GND IC2501 M16 GND IC2501 N16 GND IC2501 P16 GND IC2501...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE II SCHEMATIC DIAGRAM VIDEO SIGNAL TP2901 TP2902 TP2903 L2916 J0JCC0000077 DCLK IC2903 +3.3V REGULATOR DCLK TO D I C0CBCBC00130 (+3.3V REGULATOR) R2932 VSYNC VSYNC TO D I R2933...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE IV SCHEMATIC DIAGRAM CN2001 (TO RED LCD PANEL) VIDEO SIGNAL L2001 J0JCC0000077 3.3V L2002 J0JCC0000077 L2003 J0JCC0000077 J0JCC0000077 R2OUT[9] R3OUT[3] TO D I R2OUT[9] TO D I R3OUT[3]...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE V SCHEMATIC DIAGRAM CN2101 (TO GREEN LCD PANEL) VIDEO SIGNAL L2101 J0JCC0000077 L2102 J0JCC0000077 3.3V L2103 J0JCC0000077 L2104 J0JCC0000077 G1OUT[4] G4OUT[2] TO D I G1OUT[4] TO D I...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 DRIVE VI SCHEMATIC DIAGRAM CN2201 (TO BLUE LCD PANEL) VIDEO SIGNAL L2201 J0JCC0000077 L2202 J0JCC0000077 3.3V L2203 J0JCC0000077 L2204 J0JCC0000077 R2205 R2214 EXB38V102JV EXB38V102JV B1OUT[2] B3OUT[5] TO D I...
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 10 Printed Circuit Board 10.1. MAIN P.C.B. NOTE: MULTILAYER P.C.B. MAIN P.C.B. LSEP3234A THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT PATETRNS ARE SINGLE PATTERN FOR EACH (COMPONENT SIDE) SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 MAIN P.C.B. LSEP3234A (COMPONENT SIDE) CN3002 D4001 JK3101 OPTICAL AUDIO OUT PC AUDIO IN C5508 R5042 IC5514 R5039 R5041 PC IN R5040 TP3013 D5522 C5015 C5014 IC5513 R3003 TP3021...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 NOTE: MULTILAYER P.C.B. MAIN P.C.B. LSEP3234A THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT PATETRNS ARE SINGLE PATTERN FOR EACH (FOIL SIDE) SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 10.2. DRIVE P.C.B. NOTE: MULTILAYER P.C.B. DRIVE P.C.B. LSEP3235A THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT PATETRNS ARE SINGLE PATTERN FOR EACH SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 NOTE: MULTILAYER P.C.B. DRIVE P.C.B. LSEP3235A THIS P.C.B. IS Multi-Layer P.C.B. THIS CIRCUIT BOARD SHOWS COMPONENT LAYOUT-PATTERN FOR COMPONENT SIDE AND FOIL SIDE. LAYOUT PATETRNS ARE SINGLE PATTERN FOR EACH SIDE THAT MAKE EASY TO SIGHT THE COMPONENT LAYOUT.
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 11 Appendix Information of Schematic Diagram 11.1. CHECKING POINT TABLE OF THE CSP IC Check Point of IC7101 (Main P.C.B.) Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No.
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Check Point of IC7119 (Main P.C.B.) Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No. Remarks PEAKS_OSD8 ROE2 ROE3 PEAKS_OSD9 R7365 (LOWER) PEAKS_OSD10 R7132 COMPONENT SIDE...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Check Point of IC8001 (Main P.C.B.) Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No. Remarks VOP2 VI1P7 VOP3 VI1P27 R5640 FOIL SIDE VOP4 VI1P8...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Check Point of IC2501 (Drive P.C.B.) Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No. Remarks R1IN4 B2IN11 R1IN6 R2939 R2945 FOIL SIDE WF25 FOIL SIDE...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Name Voltage Check Point WF No. Remarks Name Voltage Check Point WF No. Remarks G1OUT10 L2587 (UPPER) COMPONENT SIDE B3OUT2 L2432 (LEFT) COMPONENT SIDE WF27 G1OUT11 L2518 (UPPER) FOIL SIDE...
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 12.2. MAIN P.C.B. UNIT AND TOP DUCT UNIT SECTION MAIN P.C.B. UNIT & TOP DUCT UNIT SECTION...
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 13.2. MECHANICAL REPLACEMENT Ref. Part No. Part Name & Description Remarks PARTS LIST XYN2+J4FJK SCREW,STEEL 1 PSEC XYN3+J8FJK SCREW,STEEL 1 PSEC XYC3+FG10FJ SCREW 1 PSEC XTV3+8GFJ TAPPING SCREW,STEEL XTV3+8FFJ...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks IC4003 C0ABBB000230 IC, LINEAR B1ADCF000075 TRANSISTOR SI PNP CHIP Q4502 IC4004 C0DBFFD00003 IC, LINEAR...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks B1ADCF000063 TRANSISTOR SI PNP CHIP MA2J11100L DIODE SI CHIP Q6005 D1207 B1ADCF000075 TRANSISTOR SI PNP CHIP...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R1108 ERJ6GEY0R00V MGF CHIP 1/10W 0 R3006 ERJ3GEYJ103V MGF CHIP 1/16W 10K R1111 ERJ3GEYJ822V MGF CHIP 1/16W 8.2K...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R4012 ERJ3EKF2002V MGF CHIP 1/16W 20K R5045 ERJ3GEYJ102V MGF CHIP 1/16W 1K R4013...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R5587 ERJ3EKF8200V MGF CHIP 1/16W 820 R6043 ERJ3GEYJ473V MGF CHIP 1/16W 47K R5593...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R6178 ERJ3GEYJ101V MGF CHIP 1/16W 100 R7163 EXB2HV820JV ARRAY CHIP 82 R6180 ERJ3GEYJ182V MGF CHIP 1/16W 1.8K...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R7306 ERJ3GEYJ121V MGF CHIP 1/16W 120 R8057 ERJ2GEJ470X MGF CHIP 1/16W 47 R7307...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R8220 ERJ3GEYJ103V MGF CHIP 1/16W 10K R8815 ERJ3GEYJ272V MGF CHIP 1/16W 2.7K R8221...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks JS7102 ERJ2GE0R00X MGF CHIP 1/16W 0 C3003 ECJ1VB1H103K C CHIP 50V 0.01UF JS7103...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C4061 ECJ1VB0J225K C CHIP 6.3V 2.2UF C5545 F1H1C104A065 C CHIP 16V 0.1UF C4062...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C6025 F1H1C104A065 C CHIP 16V 0.1UF C7162 F1G1A1040006 C CHIP 10V 0.1UF C6026 F1H1C104A065 C CHIP 16V 0.1UF...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C7242 F1G1A1040006 C CHIP 10V 0.1UF C7476 F1G1A1040006 C CHIP 10V 0.1UF C7243 F1G1A1040006 C CHIP 10V 0.1UF...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C8068 F1H1C104A065 C CHIP 16V 0.1UF C8920 F1G1H1020008 C CHIP 50V 1000PF C8069...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L4003 J0JCC0000077 EMI FILTER CHIP L5515 J0JHC0000078 EMI FILTER CHIP L4004 G1C101KA0055 COIL CHIP 100UH...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks CN5503 K1KA30AA0009 CONNECTOR 30P B1ADCF000075 TRANSISTOR SI PNP CHIP Q2010 CN6003 K1KA08AA0150 CONNECTOR 8P...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R2043 ERJ3GEYJ102V MGF CHIP 1/16W 1K R2506 EXB28V820JX ARRAY CHIP 82 R2045 ERJ3GEYJ102V...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R2912 ERJ3GEY0R00V MGF CHIP 1/16W 0 C2106 ECJ3YB1C225K C CHIP 16V 2.2UF R2913...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C2707 F1H1C104A065 C CHIP 16V 0.1UF L2408 J0JDC0000105 EMI FILTER CHIP C2708 F1H1C104A065 C CHIP 16V 0.1UF...
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PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7 Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L2535 J0JDC0000105 EMI FILTER CHIP L2917 J0JCC0000077 EMI FILTER CHIP L2536 J0JDC0000105 EMI FILTER CHIP...