Panasonic PT-D5600U, PT-D5600E, PT-D5600UL, PT-D5600EL, PT-DW5000U Service Manual

...

DLP™ Based Projector

PT-D5600U PT-D5600E PT-D5600UL PT-D5600EL PT-DW5000U PT-DW5000E PT-DW5000UL

ORDER NO. VED0606372C0

D10

PT-DW5000EL

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

CONTENTS

Page Page

1 Safety Precautions 4

1.1. General Guidelines

1.2. Leakage Current Check

1.3. UV Precaution and UHM Lamp Precautions

2 Specifications 3 Function for Safety

3.1. Interlock Switch

4 Serviceman Mode

4.1. Setting to Serviceman Mode

4.2. Resetting to User Mode

4.3. Functions in Serviceman Mode

5 Using the Serial Terminals

5.1. Examples of Connection

5.2. Pin Assignments and Signal Names

5.3. Communication Conditions (Factory Setting)

5.4. Procedure of Communication Condition Settings

5.5. Control commands

5.6. Cable specifications

6 Using a Wired Remote Control

6.1. Connection Example

6.2. Setting the Projector ID Number for Remote Control

7 Support for Service

7.1. Supporting Methods

7.2. Note for Replacement of P.C.Boards

7.3. Replacement of the lithium battery on the A-P.C.Board

8 Cautions for Service

8.1. Servicing Methods

9 Parts Location

9.1. Electrical Parts Location

9.2. Electromechanical Parts Location

10 Replacement of Lamp Unit

10.1. Precautions on Lamp Unit Replacement

10.2. Timing of Lamp Unit Replacement

10.3. Indication of Lamp Monitor

10.4. Procedure of Lamp Unit Replacement

11 Disassembly Instructions

11.1. Flowchart for Disassembly

11.2. Removal of Upper Case

11.3. Removal of A-P.C.Board

11.4. Removal of J-P.C.Board

11.5. Removal of D-P.C.Board

11.6. Removal of Power Module

14 14 14 15 15 16

17 17

19 19 19

20 20

21 21 22 22

25 26 26 27 27 28

11.7. Removal of R-P.C.Board 4 4 4

5 7

7 8 9

11.8. Removal of S-P.C.Board

11.9. Removal of Ballast-1 and Ballast-2 Modules

11.10. Removal of Lamp Unit

11.11. Removal of Projection Lens

11.12. Removal of Analysis Block

11.13. Removal of Synthesis Mirror

11.14. Removal of Color Wheel Block (Analysis Block)

11.15. Removal of Rod (complete)

11.16. Removal of Full Reflection Mirror (complete)

11.17. Removal of DMD Block (complete)

11.18. Removal of Mechanical Shutter Unit

12 Tr oubleshooting 13 Int erc onnection Block Diagram

13.1. Interconnection Block Diagram (1/2)

13.2. Interconnection Block Diagram (2/2)

14 Block Diagram

14.1. Power Supply

14.2. Signal Processing (1/2)

14.3. Signal Processing (2/2)

14.4. Fan/Motor Drive

15 Schematic Diagram

15.1. A-P.C.Board (1/11)

15.2. A-P.C.Board (2/11)

15.3. A-P.C.Board (3/11)

15.4. A-P.C.Board (4/11)

15.5. A-P.C.Board (5/11)

15.6. A-P.C.Board (6/11)

15.7. A-P.C.Board (7/11)

15.8. A-P.C.Board (8/11)

15.9. A-P.C.Board (9/11)

15.10. A-P.C.Board (10/11)

15.11. A-P.C.Board (11/11)

15.12. CW/D/R/S-P.C.Board

15.13. J-P.C.Board

16 C irc uit Boards

16.1. A-P.C.Board (Foil Side)

16.2. A-P.C.Board (Component Side)

16.3. J-P.C.Board

17 Te rm inal guide of ICs and tr ansis tors 18 Ex ploded View s 19 Replacement Parts List

28 28 29 31 32 32 33 34 35 36 37 38

39 51

51 52

53 54 55 56

58 59 60 61 62 63 64 65 66 67 68 69 70

71 72 73

75 76 80

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

1 Safety Precautions

1.1. General Guidelines

· For continued safety, no modification of any circuit must be

attempted.

· Unplug the power cord from the power outlet before

disassembling this projector.

· Use correctly the supplied power cord and must ground it.

· It is advisable to use an isolation transformer in the AC

power line before the service.

· Be careful not to touch the rotation part (cooling fan, etc.) of

this projector when you service with the upper case removed and the power supply turned ON.

· Observe the original lead dress during the service. If a short

circuit is found, replace all the parts overheated or damaged by the short circuit.

· After the service, all the protective devices such as

insulation barriers, insulation papers, shields, and isolation R-C combinations must be properly installed.

· After the service, check the leakage current to prevent the

customer from getting an electric shock.

1.2. Leakage Current Check

1. Prepare the measuring circuit as shown in Fig.1. Be sure to use a voltmeter having the performance

described in Table 1.

2. Assemble the circuit as shown in Fig. 2. Plug the power cord in a power outlet.

3. Connect M1 to T1 according to Fig. 2 and measure the voltage.

4. Change the connection of M1 from T1 to T2 and measure the voltage again.

5. The voltmeter must read 0.375 V or lower in both of steps 3 and 4. This means that the current must be 0.75 mA or less.

6. If the reading is out of the above standard, the projector must be repaired and rechecked before returning to the customer because of a possibility of an electric shock.

Table 1

Fig. 2

Fig. 1

1.3. UV Precaution and UHM Lamp

Precautions

· Be sure to unplug the power cord from the power outlet when replacing the lamp.

· Because the lamp reaches a very high temperature during its operation, wait until it cools completely when replacing the Lamp Unit.

· The lamp emits small amounts of UV-radiation, avoid directeye contact with the light.

· The lamp unit has high internal pressure. If improperly handled, explosion might result.

2 Specifications

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

3 Function for Safety

3.1. Interlock Switch

To ensure safety, the protection circuit of the main unit functions, and this projector becomes operation halt condition (a part of circuit is energizing) when the l amp unit cover is removed or installed incorrectly.

4 Serviceman Mode

This projector has Serviceman Mode in addition to standard on-screen menus (User Mode).

4.1. Setting to Serviceman Mode

(1) Press the MENU button.

The MENU screen will appear.

(2) Select “OPTION2” using the or buttons and press the

ENTER button. The OPTION2 screen will appear.

(3) Select “PASSWORD” using the or buttons and press the

ENTER button. The PASSWORD screen will appear.

(4) Set the operation mode selector (Computer/Numeric, Projector) switch

to “Computer/Numeric” on the remote control unit and input the password “1565”.

Note:

· Asterisk (*) will appear for the password numbers.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

(5) Set the operation mode selector (Computer/Numeric, Projector) switch

to “Projector” on the remote control unit and press the ENTER button.

(6) Press the MENU button.

Note:

· "SERVICEMAN" will appear.

4.2. Resetting to User Mode

(1) Press the MENU button.

The MENU screen will appear.

(2) Select “OPTION2” using the or buttons and press the

ENTER button. The OPTION2 screen will appear.

(3) Select PASSWORD using the or buttons and press the

ENTER button. The PASSWORD screen will appear.

(4) Set the operation mode selector (Computer/Numeric, Projector) switch

to "Computer/Numeric" on the remote control unit and input the password "0000".

Note:

· Asterisk (*) will appear for the password numbers.

(5) Set the operation mode selector (Computer/Numeric, Projector) switch

to "Projector" on the remote control unit and press the ENTER button.

(6) Press the MENU button.

Note:

· "USER" will appear.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

4.3. Functions in Serviceman Mode

4.3.1. EXT OPTION

"EXT OPTION" is added to the MENU.

1. CUT OFF Sets the display ON/OFF for each color (R, G, B).

2. LAMP RELAY "OFF","4h","5h","6h"..."20h", "21h", "22h": If "SINGLE" is set on LAMP SELECT, Lamp Unit 1 and Lamp Unit 2 are automatically switched alternately at intervals of the

selected setting time (for 4-22 hours).

3. ADJUST DATE Sets the time zone and date.

4. LAMP DUAL24h When LAMP SELECT is DUAL, lights only one lamp for four hours from the specified time.

5. SELF CHECK Displays SELF CHECK. There are 4 pages, and it is switched with

and buttons.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

[1st page]

[2nd page]

[3rd page]

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

[4th page]

6. CW INDEX When the color wheel is replaced, adjusts it with a. Display the test pattern 9 (Red & Blue pattern). b. Confirm whether there is a horizontal line.

and buttons.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

c. If a horizontal line is in the red area, decrease CW INDEX setting value by 1, and record the value where the horizontal line

(in both red area and blue area) disappears. (The recorded value is assumed to "A".)

d. If a horizontal line is in the blue area, increase CW INDEX setting value by 1, and record the value where the horizontal line

(in both red area and blue area) disappears. (The recorded value is assumed to "B".)

e. Set the mean value (omission below decimal point) of "A" and "B" to the CW INDEX setting value.

7. P. ON SHUTTER

· Open: Opens the shutter when power ON.

· Close: Closes the shutter when power ON.

8. P. OffSHUTTER

· IGNORE: Does not control the shutter when power OFF.

· Open: Opens the shutter when power OFF.

· Close: Closes the shutter when power OFF.

9. ERROR OSD Displays the lamp status with OSD when you do not see the status LED lights because the rear projection, etc.

10. H.MASK PULSE When the signal of 480i or 576i is inputted, the synchronization might become unstable. It might be stable when H.MASK

PULSE is set to "SPECIAL".

· STANDARD: Does not execute special signal processing.

· SPECIAL: Executes special signal processing.

11. SIGNAL DATA ALL ERASE Resets the setting value of each signal to the initial value of the factory shipment.

12. OUTPUT RESO Sets OUTPUT RESO as below if the A-P.C.Board is replaced.

· D5600*: XGA

· DW5000*: WXGA

4.3.2. SUB-KEYSTONE

"SUB-KEYSTONE" is added to KEYSTONE in the "POSITION" menu. If KEYSTONE and "Lens shift" are used at the same time, the right and left may be corrected in the unbalance. At this time, only the right side can be corrected by SUB-KEYSTONE.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

1. The left side is adjusted straight by KEYSTONE.

2. The right side is adjusted straight by SUB-KEYSTONE.

Note:

· SUB-KEYSTONE is a supplementary adjustment function and there is no guaranty of completely functioning. Use it

within the range where the trouble such as deforming the shape of the image does not occur.

4.3.3. Test Pattern Addition

"Red & Blue", "Whole red", "Whole green", "Whole blue", "Whole cyan", "Whole magenta" and "Whole yellow" patterns are added to the test pattern.

"Red & Blue" is used for CW INDEX adjustment.

4.3.4. Ye MODULATE Addition

When the PICTURE menu is displayed, it is enabled to be adjusted with the ENTER button.

4.3.5. FRAME LOCK

When the input signal is RGB, FRAME LOCK is added to the POSITION menu.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

5 Using the Serial Terminals

SERIAL terminals which are on the side-mounted connection terminals conform to RS-232C standard. This projector can be controlled by a PC which is connected as shown below. Also SERIAL OUT terminal is provided to enable plural projector control.

5.1. Examples of Connection

5.2. Pin Assignments and Signal Names

5.3. Communication Conditions (Factory Setting)

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

5.4. Procedure of Communication Condition Settings

(1) Press the MENU button.

The MAIN MENU screen will be displayed.

(2) Press the and buttons to select “OPTION2”.

(3) Press the ENTER button. (4) Press the and buttons to select “RS232C”.

(5) Press the ENTER button.

The RS232C screen will be displayed. (6) Press the and buttons to select communication conditions. (7) Press the and buttons to confirm the setting.. (8) Press the MENU button three times.

The on-screen indications disappear, and the system returns to the

normal screen.

5.5. Control commands

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

5.6. Cable specifications

Note

To connect the computer to the SERIAL terminal, prepare an adequate communication cable that fits to your personal computer.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

6 Using a Wired Remote Control

6.1. Connection Example

When multiple main units are connected in the system, connect the units with the M3 stereo mini jack cable available in the market to simultaneously control the multiple main units with a single remote control unit through the REMOTE1 IN/OUT terminal. It is effective to use the wired remote control in the environment in which an obstacle stands in the light path or where devices are susceptible to outside light.

6.2. Setting the Projector ID Number for Remote Control

Every projector has its ID number and the ID number of the controlling projector must be set to the remote control in advance so that the user can operate the remote control. The ID number of the projector is set to “ALL” on shipping, and use the ID ALL button of the remote control when using only a single projector.

Procedure of ID setting

1. Change the position of the operation mode selector switch to “Computer”.

2. Press the ID SET button, and within five seconds use the number (0 to 9) buttons to enter the 2-digit ID number set by the projector.

3. Change the position of the operation mode selector switch to “Projector”. However, if the ID ALL button is pressed, the projector can be controlled regardless of the ID number of the projector

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

(simultaneous control mode).

· Do not press the ID SET button accidentally or carelessly because the ID number on the remote control can be set even

when no projector is around. If the ID SET button is pressed, the ID number goes back to the one set before pressing the ID SET button unless a

numeric button is pressed within five seconds after the ID SET button is pressed.

· Your specified ID number is stored in the remote control unit unless another one is specified later. However, the stored

ID will be erased if the batteries of the remote control are left exhausted. When the dry cells are replaced, set the same ID number again.

· When specifying the ID number, enter a 2-digit number even if the ID has only one digit.

(Example: set “02” if the ID number is “2.”)

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

7 Support for Service

7.1. Supporting Methods

We will support according to the following methods.

Supporting methods Applied parts

Replaced by module or block FM-Module (For specified components, supplies them discretely.)

Ballast module

Power module Replaced by discrete components Other components Replaced at the manufacturing

department

7.2. Note for Replacement of P.C.Boards

7.2.1. When replacing the A-P.C.Board

· Transfer the data of the original A-P.C.Board to the new A-P.C.Board using the adjustment software and a personal computer.

(If you cannot transfer the data, remove IC2508 and IC2509 from the original board and mount them on the new board.) * For the adjustment software, consult an authorized service center.

7.3. Replacement of the lithium battery on the A-P.C.Board

Optical block unit (including DMD™ block), DMD™ drive module, Assembly

parts

If the lithium battery will be empty, replace it with a new one (CR2032 or equivalent).

Cautions

· Explosion may occur if replacing the battery with an incorrect one.

· Dispose of used batteries according to the instructions.

8 Cautions for Service

8.1. Servicing Methods

· Never unplug the power cord from the outlet, open the circuit breaker, or perform other procedures to cut off the power line

during the operation of any cooling fan.

· Be sure to unplug the power cord from the power outlet before servicing.

Powering off the projector

1. Press the POWER OFF "

2. Select "OK" with The projection of the image stops, and power indicator of the main unit lights up orange. (The cooling fan keeps running.)

3. Wait until the power indicator of the main unit turns to red (i.e., until the cooling fan stops).

4. Press the "

or button and press the ENTER button. (or press the POWER OFF " " button again.)

" marked side of the MAIN POWER switch to remove all power from the projector.

" button.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

9 Parts Location

9.1. Electrical Parts Location

9.2. Electromechanical Parts Location

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

10 Replacement of Lamp Unit

Cautions

· Wait until the lamp is cooled sufficiently before replacing the lamp unit.

10.1. Precautions on Lamp Unit Replacement

Remove the power plug and confirm that the surroundings of the lamp unit have cooled off.

· Be careful when handling a light source lamp. The lamp unit has high internal pressure. If improperly handled, explosion might

result.

· A used lamp unit may burst if it is handled violently.

For disposition of used lamps, request an industrial waste disposal contractor.

· Do not reset the cumulative time, except when the lamp unit has been replaced with a new unit.

· If you continue to use a lamp after the replacement time, the lamp may break.

· Philips screwdriver is necessary when replacing a lamp unit.

Take care not to slip your hand when using a screwdriver.

· A lamp unit is an optional part. Contact the dealer.

Replacement lamp unit model No.: ET-LAD55 (single bulb), ET-LAD55W (double bulbs) Rating: 300 W Long life lamp unit model No.: ET-LAD55L (single bulb), ET-LAD55LW (double bulbs) Rating: 160 W

· Other lamps than specified above cannot be used. Be sure to use the specified lamp.

10.2. Timing of Lamp Unit Replacement

The lamp used for the light source has its due life. The life of light source lamp used in the main unit is 1 500 hours*1(when “LAMP POWER” is “HIGH” and “LAMP SELECT” is “DUAL”). However, it may happen that the lamp becomes dead (will not light) by the time of 1 500 hours affected by the times of lighting and the intervals between previous lighting and next lighting). Therefore, it is strongly recommended for the user to keep a spare bulb. If your lamp unit is not replaced after 1 300 hours “HIGH”), power supply will be turned off automatically at the time of 1 500 hours initial lighting, power supply is turned off automatically about 10 minutes later, entering a standby state even if it is turned on again.

depending on the characteristics of individual lamps and working conditions (lamps may reduce their life

, entering a standby state. After 1 500 hours*1of

(with “LAMP POWER” set at

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

10.3. Indication of Lamp Monitor

10.4. Procedure of Lamp Unit Replacement

NOTE:

· Be sure to follow steps 11 to 17 in ten minutes after turning on the projector because the projector is turned off in ten

minutes if the RUNTIME indication is 1 500h or more.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

11 Disassembly Instructions

11.1. Flowchart for Disassembly

To assemble, reverse the disassembly procedures.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

11.2. Removal of Upper Case

(1) Unscrew the 8 screws and remove the top plate. (2) Remove the filters (R, L). (Pull them horizontally out.)

(3) Unscrew the 1 screw and remove the lamp unit cover while

sliding it horizontally.

(4) Unscrew the 8 screws and remove the upper case.

Note:

· Confirm the lens lock button actuates correctly when

you reassemble the upper case as it was.

· When you attach the upper case, take care not caught

nor protruding of the dustproof sheet around the projection lens.

· After attaching the upper case, remove and reinstall the

projection lens according to the section 11.11. "Removal of Projection Lens" because the dustproof sheet might protrude or deform.

11.3. Removal of A-P.C.Board

(1) Remove the upper case according to the section 11.2. "Removal

of Upper Case".

(2) Unscrew the 6 screws and remove the terminal cover.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

(3) Unscrew the 5 screws and remove the A-P.C.Board block.

(4) Pull out the flexible cable connected to the J-P.C.Board. (The

reverse side of A-P.C.Board)

(5) Unscrew the 10 screws and remove the A-P.C.Board. (The block

of the terminal metal fittings, J-P.C.Board and D-P.C.Board remains.)

11.4. Removal of J-P.C.Board

(1) Remove the A-P.C.Board block according to the steps 1 through

3 in the section 11.3. "Removal of A-P.C.Board". (2) Pull out the flexible cable connected to the A-P.C.Board. (3) Unscrew the 8 screws and remove the J-P.C.Board.

11.5. Removal of D-P.C.Board

(1) Remove the A-P.C.Board block according to the steps 1 through

3 in the section 11.3. "Removal of A-P.C.Board". (2) Unscrew the 2 screws and remove the D-P.C.Board.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

11.6. Removal of Power Module

(1) Remove the A-P.C.Board block according to the steps 1 through

3 in the section 11.3. "Removal of A-P.C.Board".

(2) Unscrew the 3 screws and release the 3 grounding terminals. (3) Unscrew the 6 screws and remove the shield cover.

(4) Unscrew the 1 screw and remove the power module.

11.7. Removal of R-P.C.Board

(1) Remove the upper case according to the section 11.2. "Removal

of Upper Case".

(2) Unscrew the 2 screws and remove the R-P.C.Board.

11.8. Removal of S-P.C.Board

(1) Remove the upper case according to the section 11.2. "Removal

of Upper Case".

(2) Unscrew the 2 screws and remove the S-P.C.Board f rom the

control buttons.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

11.9. Removal of Ballast-1 and Ballast-2 Modules

(1) Remove the upper case according to the section 11.2. "Removal

of Upper Case". (2) Unscrew the 2 screws and remove the CW fan fixing metal and

the cooling plate.

(3) Unscrew the 3 screws and release the grounding terminals. (4) Unscrew the 2 screws and release the lamp unit terminals.

(5) Loosen the 2 screws until they idle and open the exhaust fan unit

(6) Loosen the 2 screws fixing the lamp unit until they idle and

remove the lamp unit 2.

PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL

(7) Unscrew the 2 screws and remove the intake fan unit L.

(8) Unscrew the 1 screw and release the lamp unit terminal. (9) Unscrew the 3 screws and release the ballast block.

(10) Unscrew the 2 screws and remove the ballast fan.

(11) Disconnect the connectors to the ballast-1 and ballast-2

modules.

(12) While sliding the ballast units 1 and 2 mutually, disconnect their

hooks and separate the units.

Note:

· Work carefully not to deform the ballast unit case (A,

B).

+ 102 hidden pages