Panasonic PT-MZ770 / PT-MW730 (serv.man3) Service Manual ▷ View online
5
PREFACE
<MZ770/MW730>
CONTENTS
1. Safety Precautions
2. Specifications
SECTION 1 SERVICE INFORMATION
1. The name of each part
2. Menu Navigation
3. Service Mode
4. Notes on service
5. Troubleshooting
SECTION 2 DISASSEMBLY PROCEDURES
1. Parts Location
2. Mechanical and Electrical Parts Disassembly
3. Optical Parts Disassembly
<Cable wiring>
SECTION 3 ADJUSTMENTS
1. Adjustment Items and Procedures
2. Firmware Update Procedure
For the block diagrams, schematic diagrams and parts list, refer to each separated booklet "Block and Schematic
diagrams" and "Parts List" respectively.
6
PREFACE
<MZ770/MW730>
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 combi-
nations 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 0.75mA 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.
M1
M2
Rs
Cs
Rb
10KΩ ±0.1%
0.022µF
±1.0%
Vb
(V) V
Rs: 1500 Ω±0.1%
Cs: 0.22 µF±1.0%
Rb: 500 Ω±0.1%
to T1
or T2
in FIg.2
Weighted leakage current=Vb / 500 (A)
Fig. 1
Isolation transformer
T1
T2
connection
to power outlet
M1
M2
Fig.2
Projector
Measuring
Circuit (Fig.1)
Performance
Voltmeter
(rms reading)
Accurancy:
≤ 2%
Input resistance:
≥ 1 MΩ
Input capacitance: ≤ 200 pF
Frequency range: 15 Hz to 1 MHz
Table. 1
7
PREFACE
<MZ770/MW730>
2. Specifications
Chapter 7 Appendix — Specifications
ENGLISH - 223
Specifications
The specifications of the projector are as follows.
Power supply
100 V - 240 V ~ (100 V - 240 V alternating current), 50 Hz/60 Hz
Power consumption
PT-MZ770
570 W (6.4 A - 2.7 A)
PT-MW730
545 W (6.1 A - 2.6 A)
Power consumption (during
standby)
Approx. 0.5 W
When [STANDBY MODE] is set to [ECO]
Approx. 22 W
When [STANDBY MODE] is set to [NORMAL]
Approx. 47 W
When [IN STANDBY MODE] in [AUDIO SETTING] is set to [ON],
maximum audio is output, and USB memory is inserted in the
<VIEWER/PAIRING> terminal
Approx. 115 W
When [QUICK STARTUP] is set to [ON], [IN STANDBY MODE] in
[AUDIO SETTING] is set to [ON], maximum audio is output, and the
power is supplied from the <DC OUT> terminal
LCD panel
Size
19.3 mm (0.76") (aspect ratio 16:10)
Display system
Translucent screen LCD panel 3 panels, 3 primary colors system
Drive system
Active matrix
Number of pixels
PT-MZ770
2 304 000 pixels (1 920 x 1 200 dots)
PT-MW730
1 024 000 pixels (1 280 x 800 dots)
Lens
*1
Electric zoom
1.6 to 2.8:1
Electric focus
F = 1.7 to 2.3
f = 26.8 mm to 45.5 mm
Light source
Laser
Light output
*2*3
8 000 lm (when [LIGHT POWER] in [ECO MANAGEMENT] is set to [NORMAL])
Contrast ratio
*2
3 000 000:1 (when [DYNAMIC CONTRAST] is set to [1] or [2])
Color system
7 standards (NTSC/NTSC4.43/PAL/PAL-N/PAL-M/SECAM/PAL60)
Projected image size
1.02 m (40") to 10.16 m (400")
*4
Image aspect ratio
16:10
Projection method
[FRONT/REAR]/[FLOOR/CEILING]
Speaker
4.0 cm, round x 1
Audio maximum useful output
power
10 W (monaural)
Power cord length
3.0 m (118-1/8")
Outer case
Molded plastic
Outer color
Black model
Black (PT-MZ770LB only)
White model
White (except for PT-MZ770LB)
Dimensions
Width
560 mm (22-1/16")
Height
205 mm (8-1/16") (with the feet at shortest position)
Depth
PT-MZ770, PT-MZ770D,
PT-MZ770A, PT-MW730,
PT-MW730D, PT-MW730A
443 mm (17-7/16") (including standard zoom lens)
PT-MZ770L, PT-MZ770LA,
PT-MZ770LB, PT-MW730L,
PT-MW730LA
428 mm (16-27/32") (excluding the optional lens)
Weight
PT-MZ770, PT-MZ770D,
PT-MZ770A, PT-MW730,
PT-MW730D, PT-MW730A
Approx. 17.1 k] (37.7 lbs.)
*5
(including standard zoom lens)
PT-MZ770L, PT-MZ770LA,
PT-MZ770LB, PT-MW730L,
PT-MW730LA
Approx. 16.2 k] (35.7 lbs.)
*5
(excluding the optional lens)
Noise level
*2
35 dB
When [LIGHT POWER] in [ECO MANAGEMENT] is set to [NORMAL]
or [ECO].
28 dB
When [LIGHT POWER] in [ECO MANAGEMENT] is set to [QUIET]
Operating
environment
Operating
environment
temperature
0 °C (32 °F) to 45 °C (113 °F)
*6
Operating
environment
humidity
20 % to 80 % (no condensation)
8
PREFACE
<MZ770/MW730>
Chapter 7 Appendix — Specifications
224 - ENGLISH
Remote
control
Power supply
DC 3 V (AAA/R03/LR03 battery x 2)
Operating range Within approx. 30 m (98'5") (when operated directly in front of signal receiver)
Weight
Weight
102 ] (3.6 ozs.) (including batteries)
Dimensions
Width: 48 mm (1-7/8"), Height: 145 mm (5-23/32"), Depth: 27 mm (1-1/16")
*1 The lens for PT-MZ770L, PT-MZ770LB, PT-MZ770LA, PT-MW730L and PT-MW730LA is sold separately.
*2 Measurement, measuring conditions, and method of notation all comply with ISO/IEC 21118:2012 international standards.
*3 Value is for the supplied standard zoom lens. The value varies depending on the lens.
*4 When the Zoom Lens (Model No.: ET-ELW22) is used, the projected image size is 1.524 m (60") to 10.160 m (400").
*5 Average value. Weight varies for each product.
*6 The projector cannot be used at an altitude of 2 700 m (8 858') or higher above sea level.
The light output may decrease to protect the projector when the operating environment temperature exceeds 36 °C (96.8 °F).
Note
f
The model numbers of accessories and optional accessories are subject to change without prior notice.
r
Connecting terminal
<RGB 1 IN> terminal
1 set, BNC x 5 (RGB/YP
B
P
R
/YC
B
C
R
) x 1
RGB signal
0.7 V [p-p] 75 Ω (SYNC ON GREEN: 1.0 V [p-p] 75 Ω)
SYNC/HD
SYNC/HD
TTL high impedance, automatic positive/negative
polarity compatible
VD
TTL high impedance, automatic positive/negative
polarity compatible
YP
B
P
R
signal
Y: 1.0 V [p-p] including synchronization signal, P
B
P
R
: 0.7 V [p-p] 75 Ω
<RGB 2 IN> terminal
1 set, high-density D-Sub 15 p (female)
RGB signal
RGB signal
0.7 V [p-p] 75 Ω (SYNC ON GREEN: 1.0 V [p-p] 75 Ω)
SYNC/HD
SYNC/HD
TTL high impedance, automatic positive/negative
polarity compatible
VD
TTL high impedance, automatic positive/negative
polarity compatible
YP
B
P
R
signal
Y: 1.0 V [p-p] including synchronization signal, P
B
P
R
: 0.7 V [p-p] 75 Ω
<MONITOR OUT> terminal
1 set, high-density D-Sub 15 p (female)
RGB signal
RGB signal
0.7 V [p-p] 75 Ω (SYNC ON GREEN: 1.0 V [p-p] 75 Ω)
SYNC/HD
SYNC/HD
TTL high impedance, positive/negative polarity
VD
TTL high impedance, positive/negative polarity
YP
B
P
R
signal
Y: 1.0 V [p-p] including synchronization signal, P
B
P
R
: 0.7 V [p-p] 75 Ω
<HDMI 1 IN> terminal
<HDMI 2 IN> terminal
Total 2 sets, HDMI 19 p, HDCP compatible
*1
, Deep Color compatible
Audio signal
Linear PCM (sampling frequency: 48 kHz/44.1 kHz/32 kHz)
<VIDEO IN> terminal
1 set, pin jack, 1.0 V [p-p] 75 Ω
<AUDIO IN 1> terminal
<AUDIO IN 2> terminal
Total 2 sets, M3 stereo mini jack, 0.5 V [rms], input impedance 22 kΩ or more
<AUDIO IN 3> terminal
1 set, pin jack x 2 (L-R), 0.5 V [rms], input impedance 22 kΩ or more
<VARIABLE AUDIO OUT>
terminal
1 set, M3 stereo mini jack (monitor output, stereo compatible), 0 V [rms] to 2.0 V [rms] (variable), output
impedance 2.2 kΩ or lower
<SERIAL IN> terminal
D-Sub 9 p, 1 set, RS-232C compliant, for computer control
<REMOTE 1 IN> terminal
1 set, D-Sub 9 p, for contact control
<REMOTE 2 IN> terminal
1 set, M3 stereo mini jack, for remote control (wired)
<DIGITAL LINK/LAN> terminal 1 set, RJ-45, for network and DIGITAL LINK connections (HDBaseT
TM
compliant), PJLink compatible,
100Base-TX, HDCP compatible
*1
, Deep Color compatible
<LAN> terminal
1 set, RJ-45, for network connection, PJLink compatible, 10Base-T/100Base-TX
<VIEWER/PAIRING> terminal
1 set, USB connector (type A), for Memory Viewer function/pairing function
<DC OUT> terminal
USB connector (type A) x 1, for power supply (DC 5 V, maximum 2 A)
*1 PT-MZ770: HDCP 2.2 compatible; PT-MW730: HDCP compatible
r
Wireless LAN
To use the wireless LAN function with the projector, it is necessary to attach the optional Wireless Module (Model
No.: ET-WM300).
Compliance standards
IEEE802.11a/b/g/n
Transmission method
DSSS, OFDM
Modulation method
DBPSK, DQPSK, CCK, BPSK, QPSK, 16QAM, 64QAM, MIMO
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