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TABLE OF CONTENTS
PV154 - 923-03506 ZP26/28 - TOC
SECTION 1 .................... OVERVIEW
OVERVIEW .....................................................1-1
ON SCREEN DISPLAY .....................................1-3
REMOTE BUTTON DESCRIPTIONS .....................1-5
PROGRAMMING THE REMOTE ..........................1-5
REMOTE BRAND CODES ..................................1-6
REMOTE CODES ............................................1-7
OPERATING MODE KEY FUNCTIONS...................1-8
USER MENUS ..................................................1-9
USER MENUS ............................................1-10
SETUP .....................................................1-10
SPECIAL .................................................. 1-11
VIDEO MENU............................................. 1-15
AUDIO MENU ............................................ 1-16
THEATER MENU .........................................1-17
POP-3 ..................................................... 1-17
SPLIT SCREEN ........................................... 1-17
SECTION 2 .............. SERVICE MENU
<PENDING>
SECTION 3 ....................SERVICING
CIRCUIT DESCRIPTIONS ....................................3-1
POWER ON AND OFF .....................................3-1
POWER SUPPLY SHUTDOWN ...........................3-1
STAND-BY MODE ..........................................3-1
HOT SHUT DOWN SENSING CIRCUITS................3-1
COLD SHUT DOWN SENSING CIRCUITS ..............3-1
POWER SUPPLY SHUTDOWN CIRCUIT................3-2
SHUTDOWN DETECTION CIRCUITS ....................3-2
DEFLECTION SHUT DOWN CIRCUITS .................3-2
SHUT DOWN CIRCUIT DESCRIPTIONS................3-3
SUB POWER SUPPLY VISUAL LED ....................3-5
VOLTAGE LOSS OR EXCESSIVE LOAD DETECTION ..3-5
B+ VOLTAGE TOO HIGH .................................3-5
SHUT DOWN CIRCUIT....................................3-5
B+ GENERATION FOR SUB POWER SUPPLY .........3-6
DEFLECTION POWER SUPPLY VISUAL LEDS ........3-6
DEFLECTION POWER DRIVER B+ GENERATION.....3-6
DEFELCTION GENERAL INFORMATION................3-7
MAIN MICROPROCESSOR.............................. 3-12
DAC1 I006 ............................................... 3-13
DAC3 I007 ............................................... 3-13
LEVEL SHIFT I004 ..................................... 3-13
3D Y/C I301............................................. 3-13
MAIN VIDEO CHROMA I501 (PREPARATION IC) 3-14
RAINFOREST IC01 (VIDEO/CHROMA PROCESSOR)3-14
A/V SELECTOR IX01 ................................... 3-14
SUB VIDEO CHROMA IX03 ........................... 3-14
MAIN Y PR/PB SELECTOR IX04 ..................... 3-14
SUB Y PR/PB SELECTOR IX04....................... 3-14
FRONT AUDIO CONTROL IC IA01 ................... 3-14
SRS AUDIO ............................................... 3-15
TOC-1
SERVICE ADJUSTMENTS .................................. 3-16
ZP-25 CHASSIS ADJUSTMENT ORDER ............. 3-16
CHASSIS PRE-HEAT RUN ADJUSTMENTS .......... 3-17
CHASSIS CUT-OFF (SCREENS) ADJUSTMENT ..... 3-17
CHASSIS PRE-FOCUS ADJUSTMENT ................ 3-17
DCU CROSSHATCH PHASE ADJUSTMENT .......... 3-17
CHASSIS HORIZONTAL PHASE ....................... 3-17
CHASSIS TILT (RASTER INCLINATION) ............3-18
CHASSIS BEAM ALIGNMENT ADJUSTMENT ....... 3-18
CHASSIS RED/BLUE RASTER OFFSET .............. 3-18
VERTICAL SIZE ADJUSTMENT ....................... 3-19
HORIZONTAL SIZE ADJUSTMENT.................... 3-19
BEAM FORM ADJUSTMENT ........................... 3-19
LENS FOCUS ADJUSTMENT ........................... 3-20
STATIC FOCUS ADJUSTMENT ......................... 3-20
BLUE DE-FOCUS ADJUSTMENT ...................... 3-20
WHITE BALANCE AND SUB BRIGHTNESS .......... 3-20
CHASSIS HORIZONTAL PHASE (FINE) ............. 3-21
CHASSIS INTELLISENSE “PATTERN SET UP” ...... 3-21
DIGITAL CONVERGENCE ALIGNMENT ...............3-22
SUB PICTURE AMPLITUDE ...........................3-22
SECTION 4 ...........................PARTS
MODEL PARTS .............................................4-1
SECTION 5 .................... DIAGRAMS
ZP26/28 EXPLODED VIEW .................................5-1
50” WIRING DIAGRAM - BACK ...........................5-2
60” WIRING DIAGRAM - BACK ...........................5-3
50/60” WIRING DIAGRAM - FRONT .....................5-4
56” WIRING DIAGRAM - BACK ...........................5-5
65” WIRING DIAGRAM - BACK ...........................5-6
56/65” WIRING DIAGRAM - FRONT .....................5-7
ZP26/28 SRS PWB ..........................................5-8
SECTION 6 .................. SCHEMATICS
CONVERGENCE CIRCUIT 1/2 ...............................6-1
CONVERGENCE CIRCUIT 2/2 ...............................6-2
MAGIC FOCUS CIRCUIT .....................................6-3
DEFLECTION POWER SUPPLY CIRCUIT ..................6-4
DEFLECTION CIRCUIT .......................................6-5
POWER SUPPLY CIRCUIT ...................................6-6
SIGNAL CIRCUIT 1/4 .......................................6-7
SIGNAL CIRCUIT 2/4 .......................................6-8
SIGNAL CIRCUIT 3/4 .......................................6-9
SIGNAL CIRCUIT 4/4 ..................................... 6-10
SRS CIRCUIT ................................................ 6-11
VELOCITY MODULATOR CIRCUIT........................ 6-12