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• Remove the LAMP UNIT COVER. • Remove the TOP COVER. • Remove the MAIN PWB ASS'Y. (1) Remove the 1 screw marked o fixing the LAMP POWER SUPPLY CORD SUPPRESSION BRACKET. (Fig.4) (2) Pull out the LAMP POWER SUPPLY CORD (3) Remove the 2 screws marked j fixing the THERMOSTAT PROTECTOR. (Fig.6) (4) Remove the 2 screws U and 3 screws v fixing the OPTICAL BLOCK. (Fig.6) (5) Remove the 1 screw k fixing the EARTH BRACKET that connects the OPTICAL BLOCK and the CHASSIS. (Fig.6) (6) Lift up the OPTICAL BLOCK to remove it. (Fig.6) (7) Remove the 2 screws d fixing the INTAKE FAN. (Fig.6) 3.16 DD SUB1 PWB ASS'Y (Incl. DD SUB2 PWB ASS'Y) • Remove the LENS COVER. • Remove the LAMP UNIT. • Remove the TOP COVER. • Remove the MAIN PWB ASS'Y. • Remove the PROTECT COVER. • Remove the OPTICAL BLOCK (for easier operation). (1) Remove the 3 screws w fixing the DD SUB1 PWB ASS'Y. (Fig.6) (2) Remove the cord wire from the connectors CN007, CN008, and CN009. 3.17 COOLING FAN2, DUCT2, COOLING FAN3, DUCT3, DUCT4 • Remove the LENS COVER. • Remove the LAMP UNIT COVER. • Remove the TOP COVER. • Remove the MAIN PWB ASS'Y. • Remove the PROTECT COVER. • Remove the OPTICAl BLOCK. (1) Remove the 2 screws marked e fixing the DUCT2. (Fig.6) *2 (2) Remove the 2 screws marked f fixing the COOLING FAN2. (Fig.6) *2 (3) Remove the 3 screw marked i fixing the DUCT4. (Fig.6) *2 (4) Remove the 1 screw marked g fixing the DUCT3. (Fig.6) (5) Remove the 1 screw marked h fixing the COOLING FAN3. (Fig.6) *2 This operation is easier if OPTICAL BLOCK is removed. Fig.6 g (x1) T (x1) (x2) CN009 DD SUB1 PWB ASS'Y OPTICAL BLOCK BOTTOM CHASSIS LAMP UNIT FIXING SCREWS (x2) IR2 PWB ASS'Y U DUCT3 h (x1) COOLING FAN3 INTAKE FAN COOLING FAN2 e (x2) DUCT2 f (x2) i (x3) DUCT4 d (x2) v (x3) w (x3) CN007 CN008 k j (x2) (x1) THERMOSTAT PROTECTOR SECTION 4 ADJUSTMENT 4.1 BEFORE STARTING ADJUSTMENT (1) Adjustment items utilize a personal computer. This instruction is for HD2 PSA CONTROL PROGRAM Program. Use the latest version program. (2) Data back up is required before adjustments. (3) Allow the equipment and test instruments adequate time (at least 30 minutes) to warm-up. (4) Confirm the set is properly connected to the specified AC power source. (5) Use care not to disturb internal controls and parts not specifically mentioned. (6) Unless specifically mentioned in the "ADJUSTMENT PROCEDURE" steps, do not change any data. 4.2 INSTRUMENTS AND TOOLS • Oscilloscope • Light meter [for example: Minolta T-10] • Color-meter [CL-200] • Remote control unit [RM-MH2K] • Personal computer Operating system Windows 98 ME 2000 XP Memory More than 16 Mbytes Hard disk free space More than 5 Mbytes RS-232C interface At least 1 port Display resolution Minimum : 800 . 600 pixels Recommended : 1024 . 768 pixels or better Display colors Minimum : 8 bits/pixel Recommended : 16 bits/pixel or better Input devices Keyboard and mouse • Adjustment software : HD2 PSA CONTROL PROGRAM • RS-232C 9pin NULL-MODEM (cross) cable • Photoelectric conversion device (one of these) ..Light meter [Minolta T-10] A-out (Analog output) ..Photoelectric conversion device (for example: HAMAMATSU PHOTONICS S1226-8BK) ..Phototransistor or CdS photoconductor with amplifier • Color filters ..G color filter (ex. MELLES GRIOT 03 FIV 044) ..R color filter (ex. MELLES GRIOT 03 FIB 014) ..B color filter (ex. MELLES GRIOT 03 FIV 028) • Screen • Darkroom (illumination less than 0.03 lx) < Use these instruments and tools if necessary > • NTSC / PAL signal generator : composite output, Y/C output ..Gray scale : 0IRE-100IRE ..Color bar : include 75% white peak • NTSC signal generator : composite output [Y / CB / CR] ..Flat (raster) pattern : 10% • HDTV signal generator : composite output [Y / PB / PR] Flat (raster) pattern : 10% • PC signal generator ..Signal : VGA / SXGA ..Gray scale : 0.7V (p-p) [include 100% White / 0% Black] .Show at least 2 images on 1 screen (Upper scale and Lower scale must be reversed) ..Cross-hatch ..Flat (raster) pattern : 100%, 93%, 13%, 0% 1-18 (No.PA019) 4.3 REQUIRED ADJUSTMENTS BY REPLACING COMPONENTS The following adjustment procedure is required after replacing PWB ASS'Ys, LAMP BALLAST UNIT and OPTICAL BLOCK. Items noted as "Check" means check the condition, then adjust if required. 4.3.1 Component required adjustment at replacing Adjustment items MAIN DD SUB1.2 POWER LAMP BALLAST OPTICAL BLOCK 1. D-ILA COMMON DC Check Required Check Check Required 2. DC (GAMMA) Check Required Check Check Required 3. GAMMA (GRADATION / WHITE BALANCE) Check Required Check Check Required 4. SHADING (UNIFORMITY) Check Check Check Required 5. 16 - PHASE VERTICAL BARS Check Required Required 6. GHOST Check Required 7. FRAME Check Required 4.3.2 List of required instruments and tools (except those related to the personal computer) Adjustment items OSCILLOSCOPE Light meter Color filter Color meter 1. D-ILA COMMON DC (Required) 2. DC (GAMMA) (Required) 3. GAMMA (GRADATION / WHITE BALANCE) Required Required Required 4. SHADING ...
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