Hitachi PJ-TX10 Service Manual
Multimedia lcd projector
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- Specification (2 pages) ,
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SERVICE MANUAL
Warning
The technical information and parts shown in this
manual are not to be used for: the development,
design, production, storage or use of nuclear, chemical,
biological or missile weapons or other weapons of
mass destruction; or military purposes; or purposes that
endanger global safety and peace. Moreover, do not
sell, give, or export these items, or grant permission for
use to parties with such objectives. Forward all inquiries
to Hitachi Ltd.
Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury, harmful radi-
ation and materials, various measures are provided in this Hitachi Multimedia LCD Projector. Be sure to
read cautionary items described in the manual to maintain safety before servicing.
1. When replace the lamp, to avoid burns to your fi ngers. The lamp becomes too hot.
2. Never touch the lamp bulb with a fi nger or anything else. Never drop it or give it a shock. They may
cause bursting of the bulb.
3. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of
power unit (main), when turn on the projector.
4. Do not touch the exhaust fan, during operation.
5. The LCD module assembly is likely to be damaged. If replacing to the LCD LENS/PRISM assembly, do
not hold the FPC of the LCD module assembly.
6. Use the cables which are included with the projector or specifi ed.
1. Features --------------------------------------------------- 2
2. Specifi cations--------------------------------------------- 2
3. Names of each part ------------------------------------- 3
4. Adjustment ------------------------------------------------ 5
5. Troubleshooting -----------------------------------------11
6. Service points ------------------------------------------ 16
7. Wiring diagram ----------------------------------------- 29
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
Caution
Service Warning
Contents
August 2003 Digital Media Division
YK
PJ-TX10
8. Disassembly diagram--------------------------------- 34
9. Replacement parts list-------------------------------- 37
10.RS-232C communication ---------------------------- 38
11.Block diagram------------------------------------------- 46
12.Connector connection diagram -------------------- 47
13.Basic circuit diagram---------------------------------- 48
No.0536E
(C10H)
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Table of Contents
Related Manuals for Hitachi PJ-TX10
Summary of Contents for Hitachi PJ-TX10
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Page 1: Table Of Contents
Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury, harmful radi- ation and materials, various measures are provided in this Hitachi Multimedia LCD Projector. Be sure to read cautionary items described in the manual to maintain safety before servicing. -
Page 2: Features
PJ-TX10 (C10H) 1. Features Easy and flexible keystone adjustment My memory Optical lens shift Wide angle lens Low noise 2. Specifications Model name PJ-TX10 Liquid Drive system TFT active matrix Crystal Panel size 1.4cm (0.55 type) Panel Number of pixels 854 (H) ×... -
Page 3: Names Of Each Part
PJ-TX10 (C10H) 3. Names of each part Parts names Air filter cover Zoom ring (An air filter is inside.) Focus ring Lens Picture shift dial (The picture is (horizontal) projected from Picture shift dial here.) (vertical) Remote sensor Elevator button... -
Page 4: Video Button
PJ-TX10 (C10H) S-VIDEO button OFF button prepares for turning the selects the input signal power off. of S-VIDEO port. SEARCH button ON button searches for an input prepares for turning the signal between the power on. following signal ports of... -
Page 5: Adjustment
PJ-TX10 (C10H) 4. Adjustment 4-1 Before adjusting Table 4-1: Relation between the replaced part and adjustment 4-1-1 Selection of adjustment Adjustment Replaced White Color Ghost Flicker NRSH When any parts in the table 4-1 are changed, choose part balance uniformity SENSOR (Chap.4-2) - Page 6 PJ-TX10 (C10H) 4-3 Flicker adjustment (V.COM adjustment) Signals for internal adjustment Adjustment procedure 1. Make this adjustment after completing the adjust- ment in 4-2 Ghost adjustment. 2. Use DAC-P - V.COM - R: in the FACTORY MENU to adjust so that the flicker at the center of the screen is less than the flicker at the periphery.
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Page 7: Color Uniformity Adjustment
PJ-TX10 (C10H) 4-6 Color uniformity adjustment Preparations 1. Perform these adjustments after the white bal- 6. To temporarily turn correction off, place the cursor ance adjustment described in Section 4-5. on [C.UNIF.] in the Adjust Tone menu and press the 2. - Page 8 PJ-TX10 (C10H) Adjustment procedure 1 (when a color differential meter is used) 1. First adjust [MID-L] tone [G:]. 9. Similarly, measure adjustment points [No.3] to [No.17] and adjust their color coordinates starting 2. Select adjustment point [No.2][G:]. in order from the small number points.
- Page 9 PJ-TX10 (C10H) Adjustment procedure 2 (visual inspection) 1. First adjust [MIN] tone [G:]. 6. View measurement points [No.2], [No.3], [No.10] 2. Select [No.2] [G:]. and [No.11]. Adjust the [R] and [B] of each mea- If the background is [G] monochrome, press the...
- Page 10 PJ-TX10 (C10H) 4-7 AIR-SENSOR adjustment When the PWB assembly MAIN or the PWB assembly SENSOR is replaced, perform this adjustment after com- pleting reassembling the projector. 1. Open SERVICE MENU and choose AIR-SENSOR by using button. Service menu comes up by following operation.
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Page 11: Troubleshooting
PJ-TX10 (C10H) 5. Troubleshooting Check points assembly REMC E801 E802 E805 E302 E804 P701 E800 D841 D302 D303 (TEMP) P601 (LAMP) E7A1 D301 (POWER) E301 PWB assembly MAIN ESPL S301 S302 EA01 EV01 (P-ON) (INP) E102 ES01 PWB assembly SENSOR... - Page 12 PJ-TX10 (C10H) Power can not be turned on voltage input at pins Is the Lamp door installed Reset the Lamp door E800 on the PWB assembly correctly? Main at standby mode? : 0V : +17V : +6.6V : +4.1V Disconnect...
- Page 13 PJ-TX10 (C10H) Lamp does not light What is the Light state of LAMP Is the LAMP Install the Lamp indicator D303 during installation correct? operation? Not light Light Change the lamp. Lamp Does lamp light? Not light Is the voltage at the "L"...
- Page 14 PJ-TX10 (C10H) Picture is not displayed only when the RGB signal is input Check at operating mode voltage input at pins Power unit E800 on the PWB (circuit) assembly Main? : +12V : +17V :+6.6V :+4.1V PWB assembly Main LCD panel...
- Page 15 PJ-TX10 (C10H) No sound Check at operating mode voltage input at pin Power unit (circuit) of the E800 on the PWB assembly main? : +12V : +17V : +6.6V : +4.1V Turn off the projector and about 8 disconnect the Speaker cable from ESPL.
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Page 16: Service Points
PJ-TX10 (C10H) 6. Service points 6-1 Lead free solder [CAUTION] This product uses lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work. Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures (600˚C). - Page 17 PJ-TX10 (C10H) 6-2 Cautions when removing the PWB assembly MAIN When removing the PWB assembly MAIN, there is danger of damaging the connector connecting cables. 1) Disconnect 10 cables and remove 4 screws. 4 screws PWB assembly MAIN 2) Remove 2 screw.
- Page 18 Therefore, regarding these parts, you can either replace part, LCD/Lens prism assembly, or send the whole unit LCD/Lens prism assembly back to HITACHI, where we will replace the malfunctioning part, recondition the device and send it back to you.
- Page 19 PJ-TX10 (C10H) 3. Maintenance point Swab Each color part has same con- Holder struction. Optical filters By using swab and air duster, you can easily remove dust from Panel panel and optical filters. Actua l formation Separatied formation 4. Cleaning the panels and optical filters (1) Turn on the set and lit on the lamp.
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Page 20: The Remote Control
PJ-TX10 (C10H) 6-6 The Remote Control CAUTION Always handle the batteries with care and use them only as directed. Improper use may result in battery cracking or leakage, which could result in fire, injury and/or pollution of the surrounding envi- ronment. -
Page 21: The Air Filter
PJ-TX10 (C10H) 6-7 The Air filter The air filter should be cleaned about every 100 hours. If the indicators or a message prompts you to clean the air filter, clean the air filter as soon as possible. If the air filter becomes clogged by dust or the like, internal tem- perature rises and could cause malfunction. -
Page 22: The Lamp
PJ-TX10 (C10H) 6-8 The Lamp WARNING The projector uses a high-pressure mercury glass lamp made of glass. The lamp can break with a loud bang, or burn out, if jolted or scratched, handled while hot, or worn over HIGH VOLTAGE... - Page 23 PJ-TX10 (C10H) 6-9 Notice of AUTO adjustment Use of AUTO adjustment with the image through RGB input optimizes V_POSI, H_POSI, H_SIZE and H_PHASE automatically. In case that projected image has dark tone around its peripheral, AUTO operation sometimes makes artifacts in the image, shifts capture area and so on.
- Page 24 PIN BOX (ID Inquiring Code) 2. Send HITACHI sales company the Inquiring code (10 digits) to inquire the correct PIN code. 3. With the PIN BOX menu displayed, input the correct PIN code. Enter the correct PIN CODE that HITACHI sales company informed.
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Page 25: Related Messages
PJ-TX10 (C10H) 6-11 Related Messages When the unit's power is ON, messages such as those shown below may be displayed. When any such mes- sage is displayed on the screen, please respond as described below. Message Description CHANGE THE LAMP Lamp usage time is approaching 2000 hours. -
Page 26: Regarding The Indicator Lamps
PJ-TX10 (C10H) 6-12 Regarding The Indicator Lamps ATTENTION • When the interior portion has become overheated, for safety purposes, the power source may be automatically turned off, and the indicator lamps may also be turned off. In such a case, press the "○" (OFF) side of the power switch, and wait at least 45 minutes. -
Page 27: Service Menu
PJ-TX10 (C10H) SERVICE MENU To display the OSD for “SERVICE MENU” set up. SERVICE MENU By the control panel By the remote control transmitter C10H 1. Display the menu by the “MENU” 1. Display the menu by the “MENU” FANSPEED B-SPEED button. - Page 28 PJ-TX10 (C10H) Setup of Filter time (“ON” or “OFF”) 1. Select the “FILTER TIME” on the OSD using button “ ” . Next press the “ ” to select “FILTER TIME MENU” by the SERVICE MENU. SERVICE MENU C10H FANSPEED...
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Page 29: Wiring Diagram
PJ-TX10 (C10H) 7. Wiring diagram... - Page 30 PJ-TX10 (C10H)
- Page 31 PJ-TX10 (C10H)
- Page 32 PJ-TX10 (C10H)
- Page 33 PJ-TX10 (C10H)
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Page 34: Disassembly Diagram
PJ-TX10 (C10H) 8. Disassembly diagram M : Meter screw M3x8 T : Tapping screw (Notice 3) Lamp fan / duct M3x6(lock) M3x6 T3x12 T2x5 (Notice 1) T3x12 T3x12 T3x12 T3x10 T3x12 M3x8 T3x12 (Notice 6) T3x12 T3x12 (Notice 5) Dichroic optics unit... - Page 35 PJ-TX10 (C10H) M : Meter screw T : Tapping screw Dichroic optics unit LCD / Lens prism M3x8 M3x8 M3x6 M3x50 M3x50 M3x30 Power supply unit Lamp fan / duct T3x16 (Notice 2) T3x35 T3x35...
- Page 36 PJ-TX10 (C10H) Notice 1. After attaching MAIN board assembly to case with 4. Align shield case joints. M3x6 lock screws, tighten screws on back of Outside bottom case. 2. To remove power board from shield case, push board in direction of arrow, and unlock catches (a) and (b) on board holders with screwdriver.
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Page 37: Replacement Parts List
PJ-TX10 (C10H) 9. Replacement Parts list PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Don't degrade the safety of the projector through improper servicing. -
Page 38: Rs-232C Communication
PJ-TX10 (C10H) 10. RS-232C communication Connecting The Cable (1) Turn off the projector and the computer power supplies. (2) Connect the CONTROL port of the projector with a RS-232C port of the computer by a RS- 232C cable. Use the cable that fulfills the specification shown in the following figure. - Page 39 PJ-TX10 (C10H) Requesting projector status (Get command) (1) Send the request code Header + Command data (‘02H’+‘00H’+ type (2 bytes)+‘00H’+‘00H’) from the computer to the projector. (2) The projector returns the response code ‘1DH’+ data (2 bytes) to the computer.
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Page 40: Command Data Chart
PJ-TX10 (C10H) Command Data Chart Command data Names Operation type Header Action Type Setting code BE EF 06 00 B9 D3 02 00 07 20 00 00 Keystone Increment BE EF 06 00 DF D3 04 00 07 20 00 00... - Page 41 PJ-TX10 (C10H) Command Data Chart (continued) Command data Names Operation type Header Action Type Setting code English BE EF 06 00 F7 D3 01 00 05 30 00 00 FRANÇAIS BE EF 06 00 67 D2 01 00 05 30...
- Page 42 PJ-TX10 (C10H) Command Data Chart (continued) Command data Names Operation type Header Action Type Setting code BE EF 06 00 EF F6 01 00 B3 30 05 00 BE EF 06 00 7F F7 01 00 B3 30 04 00...
- Page 43 PJ-TX10 (C10H) Command Data Chart (continued) Command data Names Operation type Header Action Type Setting code BE EF 06 00 0D 83 02 00 00 21 00 00 V Position Increment BE EF 06 00 6B 83 04 00 00 21...
- Page 44 PJ-TX10 (C10H) Command Data Chart (continued) Command data Names Operation type Header Action Type Setting code BE EF 06 00 26 72 01 00 06 22 01 00 MIDDLE BE EF 06 00 D6 72 01 00 06 22 02 00...
- Page 45 PJ-TX10 (C10H) Command Data Chart (continued) Command data Names Operation type Header Action Type Setting code BE EF 06 00 31 D3 02 00 01 20 00 00 Volume Increment BE EF 06 00 57 D3 04 00 01 20...
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Page 46: Block Diagram
PJ-TX10 (C10H) 11. Block diagram... -
Page 47: Connector Connection Diagram
PJ-TX10 (C10H) 12. Connector connection diagram 30P PFC(Flat) With Panel(OPT Unit) Y IN 1:NC 2:DY 3:CLY 4:/CLY Pb/Cb IN 5:VDDY 6:LCCOM 7:NC Pr/Cr IN 8:NRG 9:ENB1 10:ENB2 11:ENB3 12:ENB4 VIDEO IN R:P501 13:DIRX G:P601 14:CLX 15:/CLX B:P701 16:VDDX S-VIDEO IN... -
Page 48: Basic Circuit Diagram
PJ-TX10 (C10H) 13. Basic circuit diagram Parts with hatching are not mounted. PWB assembly SENSOR (C10H) PWB assembly REMC (C10H) - Page 49 C152 R160 L100 L102 CN100 Q100 +370V D150 ZD150 R113 Q150 Q151 C151 T102 Z100 C133 L103 R154 T101 CN100 D121 R156 R118 CN100 R119 L104 CN100 +16V D108 R132 R124 R131 R123 D107 IC103 IC102 8 VB Vcc 1 1 Vcc VB 8 D117...
- Page 50 R252 Q213 R208 D212 Q200 C211 D200 R261 R210 R275 R260 R229 R273 D206 R271 IC200 Q222 IC202 Q217 R272 R225 R234 R222 Q212 R209 IC203 C203 IC203 ZD210 R206 C251 Q221 C225 IC202 C213 R223 C222 C204 R218 C208 Q220 C206 C223...
- Page 51 C111 CN101 C210 T201 L103 TH101 FB105 R201 D207 D104 FB106 R204 C214 T101 R219 C201 R234 D101 FB101 FB103 D201 R205 C109 Q102 D102 FB104 FB102 C211 CN103 C110 14.5V R206 CN102 C108 C103 D202 D103 FB201 D212 IC301 Q101 D208 C107...
- Page 52 PWB assembly MAIN 1 (C10H)
- Page 53 PWB assembly MAIN 2 (C10H)
- Page 54 PWB assembly MAIN 3 (C10H)
- Page 55 PWB assembly MAIN 4 (C10H)
- Page 56 PWB assembly MAIN 5 (C10H)
- Page 57 PWB assembly MAIN 6 (C10H)
- Page 58 PWB assembly MAIN 7 (C10H)
- Page 59 PWB assembly MAIN 8 (C10H)
- Page 60 PWB assembly MAIN 9 (C10H)
- Page 61 PWB assembly MAIN 10 (C10H)
- Page 62 MEMO MEMO...
- Page 63 PJ-TX10 (C10H) Basic circuit diagram list PWB assembly SENSOR PWB assembly MAIN 3 PWB assembly REMC PWB assembly MAIN 4 POWER UNIT BALLAST 1 PWB assembly MAIN 5 POWER UNIT BALLAST 2 PWB assembly MAIN 6 POWER UNIT CIRCUIT PWB assembly MAIN 7...
- Page 64 PJ-TX10 YK No.0536E Digital Media Division QR57681 Printed in Japan (JE)