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SERVICE MANUAL
NTSC
CAUTION:
Before servicing this chassis, it is important that the service technician read the "Safety
Precaution" and "Product Safety Notices" in this Service Manual.
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PRODUCT SAFETY NOTICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
POWER SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SERVICE NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
CIRCUITS AND BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . 34
PARTS IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
SOLID STATE COLOR TELEVISION
JUNE 2000
NA8 CHASSIS
This television will display television Closed
Captioning (
with paragraph 15.119 of the FCC rules.
PA
R/C:
or
) in accordance
CC
CONTENTS
HHEA-MANUFACTURING DIVISION
No. 0139
27UX01B-501
27UX01B-511
CLU-432UG
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Table of Contents
Related Manuals for Hitachi 27UX01B-501
Summary of Contents for Hitachi 27UX01B-501
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Page 1: Table Of Contents
No. 0139 27UX01B-501 SERVICE MANUAL 27UX01B-511 NTSC NA8 CHASSIS R/C: CLU-432UG CAUTION: Before servicing this chassis, it is important that the service technician read the “Safety Precaution” and “Product Safety Notices” in this Service Manual. This television will display television Closed... -
Page 2: Safety Precautions
SAFETY PRECAUTIONS Leakage Current Hot Check NOTICE: Comply with all cautions and safety-related notes located on or inside the cabinet and on the chasis or Plug the AC cord directly into a 120V AC 60Hz outlet (do picture tube. not use an isolated transformer for this check). Turn the AC power ON. - Page 3 Important Safety Notice ....2 Service Adjustments (Electronic Control)....30 Safety Precautions .
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Page 4: Product Safety Notice
HITACHI Service Manual. [A subscription to, or additional copies of HITACHI Service Manuals may be obtained at a nominal SAFETY NOTICE charge from HITACHI Sales Corporation.] USE ISOLATION TRANSFORMER... -
Page 5: Service Notes
Service Notes IMPORTANT: To protect against possible damage to Equipment needed to check the disabled circuit: the solid state devices due to arcing or static 1. Voltmeter (0 - 200V scale) discharge, make certain that all ground wires and CRT DAG wire are securely connected. -
Page 6: Specifications
Receiver Feature Table 27UX01B-501 FEATURE\MODEL 27UX01B-511 Chassis Tuning system # of channels Menu language Eng/Span/Fr Closed Caption V-Chip input Picture in Picture Remote Model # HL01423 Picture tube M68LGLO61X V/A norm (X=both) MTS/SAP/DBX Volume Correction Built-in audio power 5Wx2 (10%) -
Page 7: Operation
Location of Controls (Receiver) Figure 1. Location of Controls Receiver Quick Reference Control Operation Quick Reference Control Operation Power Button - Press to turn ON or OFF. Volume Buttons - Press to adjust Audio Level, or to adjust Audio Menus, Video Menus, and select operating features when menus are displayed Channel Buttons - Press to select programmed channels. -
Page 8: Location Of Controls (Remote)
Location of Controls (Remote) Power Button Mode Buttons Press to turn ON or OFF. Set remote to control your TV, cable box, satellite dish, DVD or VCR. PIP Buttons Press to control PIP features. TV/VCR Button When controlling the TV or VCR, this switches TV/VCR. -
Page 9: Remote Control Quick Reference Functional Key Chart
Remote Control Quick Reference Functional Key Chart Operates Function Turns On and Off selected components POWER CABLE SATELLITE TV mode selection for remote control CABLE Cable mode selection for remote control CBL/SAT SATELLITE Satellite mode selection for remote control VCR/DVD VCR mode selection for remote control DVD mode selection for remote control Displays the PIP frame, press button once... - Page 10 Operates Function (Continued) CABLE/ Channel up/down for main picture SATELLITE Channel up/down KEYPAD BUTTONS Selects channel Selects channel Selects channel CABLE/ SATELLITE INPUT Selects input mode SLEEP Selects SLEEP timer menu Rewind Play Fast forward Record Stop Pause Not used for this model RECALL Displays channel, time, channel I.D.
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Page 11: Programming The Remote
If your VCR does not have a remote power function, the remote will issue the CHANNEL UP function. • The MENU button will act as the VCR MENU button for HITACHI VCRs. • The INPUT button will act as your VCR +100 button, if required. -
Page 12: Component Codes
09, 22, 24, 39 Philips 09, 28, 32 Goldstar 04, 10, 11 Pilot Gradiente Pioneer Harley Davidson Portland Harmon/Kardon Portec Harwood Pulsar Headquarter Quarter HI-Q Quartz Hitachi 14, 15, 24, 31 Quasar Jensen Radio Shack 00, 10 - 12 -... -
Page 13: Cable Box
00, 09, 16, 28, 32 SATELLITE Brand Code General Instrument Jerrold 61, 62 Primestar 61, 62 Sony Brand Code Hitachi Megatron CABLE BOX Brand Code Brand Code Dae Ryung 01, 03, 05, 06, 09, 11, 12, 14, 30 Eastern Antronix Electricord Archer... - Page 14 Code Brand Code Goldstar 29, 39 Samsung 29, 39 Hamlin 08, 16, 27, 49, 50 Scientific Atlanta 04, 06, 14, 52 Hitachi Signal 13, 29 Hytex Signature Jasco SL Marx Jerrold 03, 09, 10, 12, 13, 30, 51 Sprucer 17, 55...
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Page 15: Service
Disassembly for Service Disassembly for CRT Back Cover Replacement Remove all the screws marked with an arrow( 1. Discharge the CRT as instructed in the Safety from the back of the Receiver. Precautions (see page 2). Note: Screw configuration, type, and number of 2. -
Page 16: Chassis Service Adjustment Procedures
Chassis Service Adjustment Procedures All service adjustments are factory preset and should not require adjustment unless controls and/or associated components are replaced. Note: Connect the (-) lead of the voltmeter to the appropriate ground. Use IC803’s heat sink when the HOT ground symbol ( ) is used. -
Page 17: Purity And Convergence Procedures
Purity and Convergence Procedure Adjustment is necessary only if the CRT or the For a 1-piece assembly (see Fig. 7): deflection yoke is replaced or if the setting was Position like tabs of purity devices together at 12 disturbed. The complete procedure consists of: o’clock to reduce any magnetic field effect. - Page 18 Initial Center Static Convergence Final Convergence Procedure (see Fig. 10 Connect a dot/cross hatch generator to the Receiver through Fig. 12): and tune in a signal. Observe misconvergence at Note: Vertical size and focus adjustments must be center of the screen only. completed prior to performing the convergence Adjust the R&B pole magnets;...
- Page 19 As the yoke is tilted vertically, the rasters produced outside guns rotate in opposite directions. Figure 10. Vertical Yoke Movement Raster produced from one of the outside electron beams Raster from the other side electron beam R G B Static convergence magnets are set for center convergence As the yoke is tilted horizontally, one raster gets larger while the other gets...
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Page 20: Serviceman Mode (Electronic Controls)
Serviceman Mode (Electronic Controls) This Receiver has electronic technology using the I²C Bus Concept. It performs as a control function and it replaces many mechanical controls. Instead of adjusting mechanical controls individually, many of the control functions are now performed by using “On Screen Display Menu”. (The Serviceman Adjustment Mode.) Note: It is suggested that the technician reads all the way through and understand the following procedure for Entering/Exiting the Serviceman Adjustment Mode;... -
Page 21: Sub-Data Adjustment
Press the Power Button on the Remote Control to select the Serviceman Adjustment . For Adjustments: 1.Press Channel Up/Down on the Note: Write Down the original 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 13 ) for Remote Control to adjust the the available Service Adjustments each... -
Page 22: Pin Cushion Adjustment
Press the Power Button on the Remote Control to select the Serviceman Adjustment For Adjustments: 1.Press Channel Up/Down on the Note: Write Down the original 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 13 ) for Remote Control to adjust the the available Service Adjustments each... -
Page 23: Pip Adjustment
Press the Power Button on the Remote Control to select the Serviceman Adjustment For Adjustments: Note: Write Down the original 1.Press Channel Up/Down on the 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 13 ) for Remote Control to adjust the the available Service Adjustments each... -
Page 24: Options Adjustment
Press the Power Button on the Remote Control to select the Serviceman Adjustment Adjustments: Note: Write Down the original 1.Press Channel Up/Down on the 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 13 ) for Remote Control to adjust the the available Service Adjustments each... -
Page 25: Comb Filter Adustment
Press the Power Button on the Remote Control to select the Serviceman Adjustment For Adjustments: 1.Press Channel Up/Down on the Note: Write Down the original 2.Press Volume Up/Down on the value set (b in Fig. 13 ) for Remote Control to select one of Remote Control to adjust the the available Service Adjustments each... -
Page 26: To Check Purity
To Check Purity: Press the Recall Button on the Remote Control when in Serviceman Mode (red “CHK” is displayed) to enter the Purity Field Check Mode. NORMAL SCREEN Press Recall again to select desired field. BLUE GRN. WHITE SCREEN SCREEN SCREEN SCREEN Figure 14. -
Page 27: Instructional Flow Chart For Serviceman Mode
Instructional Flow Chart for Serviceman Mode NORMAL MODE Momentarily short FA1 to FA2 ( AGING MODE • Yellow “CHK” appears in upper left corner of screen. WHITE • Volume Up/Down operate rapidly. SCREEN • Custumer Controls are set to nominal level. RECALL QUICK ENTRY TO SERVICEMAN MODE (ON REMOTE) - Page 28 Instructional Flow Chart for Serviceman Mode - Continued CUT-OFF ADJUSTMENTS. C ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST VOL VOL THE LEVEL POWER (ON REMOTE) PINCUSHION ADJUSTMENTS. D ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? IMPORTANT NOTE:...
- Page 29 Instructional Flow Chart for Serviceman Mode - Continued PIP ADJUSTMENTS. P ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST VOL VOL THE LEVEL POWER (ON REMOTE) OPTIONS ADJUSTMENTS. S ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST...
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Page 30: Service Adjustments
Service Adjustments (Electronic Controls) Sub-Brightness Procedure: 1. In the Serviceman Mode, select DAC Sub- Serviceman DAC Adjustment (B2) Brightness Adjustment (B2) and adjust for 1.5- Adjustment of this control is important for setting proper 1.9Vp-p between blanking and 7.5 IRE level. (See operation of customer brightness and contrast controls. -
Page 31: Color Temperature Adjustment
Color Temperature Adjustment 8. View scope trace at Horizontal rate and adjust the Serviceman Mode DAC (C0) level until a scanning (B/W Tracking) period of 195V above DC ground is measured, as indicated in Fig. 22. Serviceman DAC Adjust. (C0) (C1) (C2) (C4) (C5) 9. -
Page 32: Horizontal Centering
Service Adjustments (Electronic Controls, cont.) Horizontal Centering Stereo Separation Adjustment (M1 & M2) Preparation: Serviceman DAC Adjustment (D0) 1. Connect an RF signal generator to the RF antenna Preparation: input. Connect a crosshatch generator. Procedure: 2. Connect a scope to TPE10. 1. -
Page 33: Clock Adjustment (S7)
Service Adjustments (Electronic Controls, cont.) Clock Adjustment (S7) 5. Calculate based following formula: Preparation: Connect the frequency counter from TPS1 (IC001 244.1406 pin 13 Hz – Pin 13) to cold ground ( 0.901 ----------------------------------------------------------------- - 244.1406 Note: Frequency Counter probe capacitance should be 8pF or less. -
Page 34: Circuits And Block Diagrams
IC2201 AN5849S-E1V L OUT Tuner MPX In L Out R Out JK3002 IC3001 Front A/V SW R OUT M52790SP Input LAV3 LRF1 IC2351 IC2302 Bass/Tre/Bal Audio Out RAV3 RRF1 JK3001 Surround AN5272 CXA2021S L-AV1 JK3002 Input 1 L Out R-AV1 L1 Out L In L Out... -
Page 35: Video-Chroma Signal Path Block Diagrams
Tuner 2 IF In IC2101 IF In VIF/AFC DET AN5170K Video Out AFT Out Tuner 1 A4-2 S6-2 S8-1 JK3001 A61-1 Y/V1 Video C6529 Luma In Filter Input Q6504 Video1 V1 Out Y In Q6509 IC6501 Q6516 Y-YUV Comb Filter C3019 Luma Out Filter MN82840... -
Page 36: Ic101 Vcj In/Out Pins And Functions
IC101 IN/OUT Pins and Functions (VCJ) IC101 TA1310BN Velocity Scanning DC RC 56 DC Restoration Correction VSM Out Modulation Ground BP DET 55 Black Peak Detection Red Input Y In 54 Luminance Signal Input R In Green Input R-Y Input G In B-Y In Blue Input... -
Page 37: Ic001 Mpu In/Out Pins And Functions
IC001 IN/OUT Pins and Functions (MPU) IC001 MN101C46FTB VSS 42 Remote signal in RMIN OSC1 41 14.32MHz X-tal SDA1 OSC2 40 SCL1 14.32MHz X-tal VDD (VPP) 39 AFC1 ADIN0 +3.3V P42 38 SCL0 AFC2 ADIN1 SDA0 Key Scan 1 ADIN2 Not used/open Action ADIN3... -
Page 38: Parts Identification
Component Identification 3 screws at the top edge of the receiver 1 screw on the retainer screw 1 screw at the lower edge 1 screw at the lower plate for the AC power cord audio out jacks of the receiver edge of the receiver 1 screw by the 1 screw by the flyback... - Page 39 Component Identification CRT (secured to cabinet by 4 screws on corners of CRT) Anode (high voltage) Yoke Degaussing coil C board ground Flyback (T551) Speaker (4 screws) A/V jacks Speaker (4 screws) Tuner Note: After servicing receiver, Figure 29. Rear View - 39 -...
- Page 40 Component Identification MTS processor IC2201 is located on the other side of the board. LOCATION OF COMPONENTS INTEGRATED CIRCUITS CONNECTORS TRANSISTORS VARIOUS IC 001 MPU FRONT AV IN Q501 H. DRIVE T551 (FLYBACK) IC 002 EEPROM FRONT KEYPAD Q551 H. OUT FUSE IC 101 VCJ REAR AV IN...
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Page 41: Parts List
REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO. - Page 42 REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO.
- Page 43 REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO.
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Page 44: Replacement Parts List
REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO. - Page 45 REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO.
- Page 46 REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO.
- Page 47 REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO.
- Page 48 REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO.
- Page 49 REPLACEMENT PARTS LIST Models: 27UX01B-501 & 27UX01B-511 Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. REF NO. PART NO. DESCRIPTION REF NO. PART NO.
- Page 50 DESCRIPTION OF ABBREVIATIONS GUIDE RESISTOR TYPE TOLERANCE Carbon +/- 1% Fuse +/- 5% Metal Oxide +/- 10% Solid +/- 20% Wire Wound +/- 2% RES, C 270-J-1/4 CAPACITOR TYPE TOLERANCE Ceramic +/- 0.25pF Electrolytic +/- 0.5pF Polyester +/- 1pF Styrol +/- 5% Tantalum +/- 10%...
- Page 51 NOTES - 51 -...
- Page 52 Printed in USA V00062000ME0609...
- Page 53 A-Board Schematic (Left Portion) Schematic Notes Waveform Measurements Voltage Measurements 1. Resistors are carbon 1/4W unless (BOLD LINE) indicates the 1. Voltage measurement: Voltage readings are nominal indicates waveform measurement. 5. Ground symbol shown noted otherwise. route of B+ supply. (Measurement can be taken at the waveform number indicates (Hot) Boards Designation...
- Page 54 A-Board Layout - TNP2AH017 Voltage Measurements Waveform Measurements indicates waveform measurement. 5. Ground symbol shown 1. Voltage measurement: Voltage readings are nominal (Measurement can be taken at the waveform number indicates (Hot) AC input to the Receiver is 120V. and may vary ±10% on active devices.
- Page 55 A-Board Voltage Measurements A-Board Schematic (Right Portion) (ICs and Transistors) IC001 IC002 ..0.04 ..2.09 ..GND ..4.73 ..2.44 .
- Page 56 C-Board Layout - TNP2AA047 S-Board Layout - TNPA0190 Waveform Measurements Voltage Measurements indicates waveform measurement. 5. Ground symbol shown 1. Voltage measurement: Voltage readings are nominal (Measurement can be taken at the waveform number indicates (Hot) AC input to the Receiver is 120V. and may vary ±10% on active best accessible location in common ground lead connection of the...