Read Panasonic PT-DZ770U / PT-DZ770E (serv.man3) Service Manual online
1. Adjustment items and procedure ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
ADJ-2
1. 1. Lighting Area Adjustment
1. 2. Color Wheel Index Adjustment
1. 3. EEPROM Data Transfer
1. 4. Model Information Setup
1. 5. Clog Sensor calibration
2. Software Update procedure ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
ADJ-7
2. 1. Update by LAN Terminal connection (Main, Sub, Network Microprocessor)
2. 2. Update by Serial Terminal Cnnection (Main, Sub, Formatter Microprocessor)
CONTENTS
SECTION 3
< Adjustments >
Model No.
PT-DZ770U / DZ770E /
DZ770UL / DZ770EL
1. Adjustment item and a procedure
1. 1. Lighting area adjustment
1. 1. 1. Lighting area confirmation
1. After replacing the DMD block, check if any shade is visible in the DMD effective display area.
2. When the Lighting area interferes with the effective area, adjust the Reflection Mirror.
1. 1. 2. Lighting area adjustment
1. Projection "All White" in internal test pattern, with Lamp select "DUAL" and Lamp power "HIGH".
2. Turn an adjustment screw by a Phillips screwdriver and fine-tune the position of the illumination area.
3. Adjust adjustment screw ① and the gap of the base to 6mm beforehand.
4. Adjustment screw ② coordinates the vertical direction of the Lighting area.
* The Lighting area moves to a lower direction when turn a
screw to the right direction.
5. Adjustment screw ③ coordinates the horizontal direction of the
Lighting area.
* The Lighting area moves to the leftward when turn a screw
in the right direction.
※ When cannot adjust it well in adjustment screw ② and ③, use
adjustment screw ①.
adjustment screw ①.
* The Lighting area moves to a upper right direction when
turn a screw to the right direction.
6. After adjustment completion, apply a screw lock bond to each
adjustment screw, and please fix it.
1.4. Model Information Setup
A-P.C.Board
When 1.3 Data Transfer is successful, this is not
necessary.
necessary.
1.5. Cloggong sensor compensation
A-P.C.Board / M2-P.C.Board
When replaced EEPROM（IC3103/IC3104）.
Replaced parts
Remarks
Adjustment Items
1.1. Lighting Area Adjustment
Color wheel
A-P.C.Board
Save data to a PC before A-P.C.B exchange and
write it into a new A-P.C.B.
write it into a new A-P.C.B.
When the following components in this projector are replaced, adjustments are required. Adjust each item according
to the table below.
to the table below.
* Make the projection environment as dark as possible and project an all-white and all-black pattern (internal test pattern) for this
check.
* Change lamp select to "DUAL" "LAMP1" "LAMP2", and please confirm it.
check.
* Change lamp select to "DUAL" "LAMP1" "LAMP2", and please confirm it.
1.2. Color wheel index adjustment
1.3. EEPROM data transfer
DMD Block / Analysis Block
Lighting area
Effective area
Adjustment Screw ③
Adjustment Screw ②
Adjustment Screw ①
Effective area
Lighting area
Adjustment Screw
②
Reflection Mirror
Adjustment Screw
③
Adjustment Screw
①
6mm
Adjustment Screw
①
ADJ - 2
1. 2. Color wheel index adjustment
1. Setting to Service mode and select "Red-Blue" in internal test patterns.
2. Select "CW INDEX" in "EXT OPTION" menu and adjust with
buttons.
3. Confirm if there is a hilizontal line in red area and blue area in the test pattern.
4. If a horizontal line is in the red area, decrease CW INDEX setting value by 1,
and record the value where the horizontal line disappears.
(The recorded value is assumed to "A".)
5. If a horizontal line is in the blue area, increase CW INDEX setting value by 1,
and record the value where the horizontal line disappears.
(The recorded value is assumed to "B".)
6. Set the mean value (omission below decimal point) of "A" and "B" to the CW INDEX setting value.
Note: If there is no value to eliminate the line in red and blue both at the same time,
set it at the point where the line in blue area is hardest to see.
1. 3. EEPROM data transfer
1. 3. 1. Required equipments
1. Computer : Use it for the transfer of backup data.
2. Communication cable : D-sub 9pin (male/female RS-232C straight)
3. Service Software : ［DataLogBackup tool］ Service software is downloaded from the projector service homepage.
1. 3. 2. Connection Preparations
* Set up a PC in advance, prevent be in the standby/ shut-down state.
1. 3. 3. Backup the EEPROM data (It is before circuit board exchange)
1. Switch the projector to "Normal-Standby" mode (POWER indicator is Lighting in red).
2. Start up service software ［DataLogBackup.exe］ with a computer.
3. Select "Option " → " Setting" and set Serial Port of the computer, Baud Rate and Parity.
1. Confirm the projector's ID, baudrate, prity and
take a memo.
take a memo.
2. Connect the SERIAL IN termanal of projector
and PC with a RS-232C cable.
and PC with a RS-232C cable.
Computer
Projector
RS-232C cable (Streight)
Red-Blue test pattern
ADJ - 3
4. Select a model number and ID.
6. Select the save place and click the [Save(S)] button.
7. When the progress bar reaches the right-side end, the save of data is completion.
Select "File" → "Quit", and please be finished.
5. 1) Select "Backup (EEPROM)”.
2) Checkmark in "REPLACE A-PWB" of "COPY MODE".
3) Click an [READ EEPROM] button.
2) Checkmark in "REPLACE A-PWB" of "COPY MODE".
3) Click an [READ EEPROM] button.
①
②
③
ADJ - 4
