DOWNLOAD Panasonic PT-DZ21K2 / PT-DS20K2 / PT-DW17K2 / PT-DZ16K2 (serv.man2) Service Manual ↓ Size: 74.49 MB | Pages: 109 in PDF or view online for FREE

PREFACE

< DZ21K2/DS20K2/DW17K2/DZ16K2 >

1. Safety Precautions
2. Specifications

1. The name of each part
2. OSD Menu Navigation
3. Service Mode
4. Notes on service
5. Troubleshooting

1. Parts Location
2. Disassembly Instructions

3. Cable alignment

1. Adjustment items and procedure
2. Software update procedure

1. Block Diagram
2. Interconnection Block Diagram
3. Schematic Diagram
4. Circuit Boards Diagram

* For replacement parts and exploded view, refer to the separated "PARTS LIST".

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PREFACE

< DZ21K2/DS20K2/DW17K2/DZ16K2 >

・

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. 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 0.75mA 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.

 Accuracy : 

≦

 2%

 Input resistance :

≧

 1 MΩ

 Input capacitance :

≦

 200 pF

 Frequency range :

15 Hz to 1 MHz

・

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 direct-eye contact with the light.

・

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

・

Because the high pressure lamp involves a risk of failure, never touch the lamp wire lead during the service. 

Performance

 Voltmeter
 (rms reading)

Table. 1

M1

M2

Rs

Rb

Cs

10 kΩ ±0.1%

V

Vb

(V)

0.022μF
±1.0%

to T1
or T2
in FIG.2

Rs:1500 Ω ±0.1%
Cs:0.22μF ±1.0%
Rb:500 Ω ±0.1%

Weighted leakage current = Vb / 500 (A)

M1

M2

T1

T2

Isolation transformer

to power outlet

Measuring
circuit (Fig.1)

Multi Window

Processor

connection

Fig. 1

Fig. 2

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PREFACE

< DZ21K2/DS20K2/DW17K2/DZ16K2 >

f

The specifications of the projector are as follows.

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PREFACE

< DZ21K2/DS20K2/DW17K2/DZ16K2 >

f

Refer to Operating Instructions “List of compatible signals”  for the types of video signals that can be used with the projector.

Horizontal: 15.73 kHz, Vertical: 59.94 Hz; Horizontal: 15.63 kHz, Vertical: 50 Hz

Horizontal: 15 kHz to 100 kHz, Vertical: 24 Hz to 120 Hz
PIAS (Panasonic Intelligent Auto Scanning) system

 

f Dot clock frequency: 162 MHz or less

 

f 525i (480i)

Horizontal: 15.73 kHz, Vertical: 59.94 Hz

 

f 525p (480p)

Horizontal: 31.47 kHz, Vertical: 59.94 Hz

 

f 750 (720)/60p

Horizontal: 45 kHz, Vertical: 60 Hz

 

f 1125 (1035)/60i

Horizontal: 33.75 kHz, Vertical: 60 Hz

 

f 1125 (1080)/50i

Horizontal: 28.13 kHz, Vertical: 50 Hz

 

f 1125 (1080)/24sF

Horizontal: 27 kHz, Vertical: 48 Hz

 

f 1125 (1080)/30p

Horizontal: 33.75 kHz, Vertical: 30 Hz

 

f 1125 (1080)/50p

Horizontal: 56.25 kHz, Vertical: 50 Hz

 

f 625i (576i)

Horizontal: 15.63 kHz, Vertical: 50 Hz

 

f 625p (576p)

Horizontal: 31.25 kHz, Vertical: 50 Hz

 

f 750 (720)/50p

Horizontal: 37.5 kHz, Vertical: 50 Hz

 

f 1125 (1080)/60i

Horizontal: 33.75 kHz, Vertical: 60 Hz

 

f 1125 (1080)/24p

Horizontal: 27 kHz, Vertical: 24 Hz

 

f 1125 (1080)/25p

Horizontal: 28.13 kHz, Vertical: 25 Hz

 

f 1125 (1080)/60p

Horizontal: 67.5 kHz, Vertical: 60 Hz

 

f The SYNC/HD and VD terminals do not support 3 value SYNC.

525i (480i)

*1

, 625i (576i)

*1

, 525p (480p), 625p (576p), 750 (720)/60p,  

750 (720)/50p, 1125 (1080)/60i, 1125 (1080)/50i, 1125 (1080)/24p,  
1125 (1080)/24sF, 1125 (1080)/25p, 1125 (1080)/30p,  
1125 (1080)/60p, 1125 (1080)/50p

 

f Displayable resolution: 640 x 480 to 1 920 x 1 200 (non-interlaced)

 

f Dot clock frequency: 25 MHz to 162 MHz

525i (480i)

*1

, 625i (576i)

*1

, 525p (480p), 625p (576p), 750 (720)/60p,  

750 (720)/50p, 1125 (1080)/60i, 1125 (1080)/50i, 1125 (1080)/24p,  
1125 (1080)/24sF, 1125 (1080)/25p, 1125 (1080)/30p,  
1125 (1080)/60p, 1125 (1080)/50p

 

f Displayable resolution: 640 x 480 to 1 920 x 1 200 (non-interlaced)

 

f Dot clock frequency: 25 MHz to 162 MHz

SMPTE ST 259 compliant
YC

B

C

R

 4:2:2 10-bit

480i, 576i

SMPTE ST 292 compliant
YP

B

P

R

 4:2:2 10-bit

720/50p, 720/60p, 1035/60i, 1080/50i, 1080/60i, 1080/25p, 
1080/24p, 1080/24sF, 1080/30p

SMPTE ST 372 compliant
RGB 4:4:4 12-bit/10-bit
1080/50i, 1080/60i, 1080/25p, 1080/24p, 1080/24sF, 1080/30p, 
2048 x 1080/24p, 2048 x 1080/24sF
X'Y'Z' 4:4:4 12-bit
2048 x 1080/24p, 2048 x 1080/24sF

SMPTE ST 424 compliant
YP

B

P

R

 4:2:2 10-bit

1080/50p, 1080/60p
RGB 4:4:4 12-bit/10-bit
1080/50i, 1080/60i, 1080/25p, 1080/24p, 1080/24sF, 1080/30p

SMPTE ST 425 compliant
YP

B

P

R

 4:4:4 12-bit/10-bit

1080/60p, 1080/50p, 2048 x 1080/60p, 2048 x 1080/50p, 
2048 x 1080/48p
RGB 4:4:4 12-bit/10-bit
1080/60p, 1080/50p, 2048 x 1080/60p, 2048 x 1080/50p, 
2048 x 1080/48p

*1  Pixel-Repetition signal (dot clock frequency 27.0 MHz) only
*2  Only for PT-DZ21K2, PT-DS20K2

 

f DIGITAL LINK input compatible signal is the same as HDMI input compatible signal.

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