Panasonic PT-DZ21KU / PT-DZ21KE / PT-DS20KU / PT-DS20KE / PT-DW17KU / PT-DW17KE (serv.man2) Service Manual ▷ View online
* CPU : Central Processing Unit
A
A Check and repair IC3512 and the peripheral circuits.
●
Cannot control from the front side of the main unit.
■ Remote control does not respond
G
Check the cable between connectors G17 and R1
G
Check and Replace cable between connectors P21 and
G10.
Replace the PC1-P.C.Board.
A
A
Check in order of the following.
IC3508(FLASH ROM) and peripheral circuits.
IC3513(SRAM) and peripheral circuits.
IC3501(MAIN CPU)
●
Main CPU operation checks
A
The voltage of R3672 is 1.2V.
Check and repair X3402 and the peripheral circuits.
Check the clock waveform.
R3575 : 35.455MHz
The voltage of G10 connector.
2pin : 3.3V, 6pin : 5V
NG
OK
NG
NG
OK
OK
NG
INF - 37
G
G
When remote control is operated, the signal can be
detected at G17 connector 5pin.
G
・
R
Check the cable between connectors G17 and R1
(No breaking of wire, etc.).
Replace the R-P.C.Board.
G When remote control is operated, the signal can be
detected at 6pin of IC6012.
G
G
Check the cable between connectors G19 and BR1.
Replace the BR-P.C.Board.
Check IC6001.
Replace the G-P.C.Board.
G
Check and repair IC6012,JK6001,Q6008 and the
peripheral circuits.
G
BR
G
When remote control is operated, the signal can be
detected at G19 connector 7pin.
When remote control is operated, the signal can be
detected at 4pin of IC6007.
Check and repair IC6007 and the peripheral circuits.
●
Cannot control from the rear side of the main unit.
G
Replace the G-P.C.Board.
NG
NG
OK
OK
NG
NG
OK
OK
INF - 37
G
G Replace the G-P.C.Board.
■ REMOTE 2 IN does not respond
Cable is connected with JK6005(REMOTE IN2).
G
When POWER is turned ON and OFF by remote
control,
the signal can be detected with IC6011 pins 14 and
18.
G Check and repair IC6011 and the peripheral circuits.
Connect the cables properly.
Connect the cables properly.
Replace the G-P.C.Board.
G When the command is transmitted, the signal can
be detected at IC6010 pin 10,12,17.
G Check and repair IC6010 and the peripheral circuits.
■ SERIAL IN/OUT does not respond
Check RS-232C cable connection. (JK6003/JK6004)
OK
NG
NG
OK
OK
NG
NG
OK
INF - 38
G
S
G Replace the G-P.C.Board.
■ Controls of side panel does not respond
The voltage of connector G2 pins 6-8 is approx 3V.
Replace the S-P.C.Board.
G
Check cable between connectors G2 and S1
(No breaking of wire, etc.).
Replace the cable.
G When MAIN POWER is turned ON, the voltage of
connector G2 pin 10 is 3.3V.
G Replace the G-P.C.Board.
OK
NG
NG
OK
NG
OK
INF - 38
1. Parts location
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ DIS-2
1. 1. Electrical parts location (P.C.Board)
1. 2. Electrical parts location (Fan)
1. 3. Mechanism element parts location
1. 4. Optical parts location
2. Disassembly instructions ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ DIS-4
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CONTENTS
SECTION 2
< Disassembly Procedures >
PT-DZ21KU / DZ21KE
PT-DS20KU / DS20KE
PT-DW17KU / DW17KE
PT-DS20KU / DS20KE
PT-DW17KU / DW17KE
Model
No.
A
A
A
2. 1. Flowchart for disassembly
2. 2. Removal of Upper case <R3/M1/R/RM/RL/TL/SL/BR/M2 -P.C.Board>
2. 3. Removal of Signal processing block <WF/G/WL/RW/A -P.C.Board>
2. 4. Removal of Ballast block <B-P.C.Board>
2. 5. Removal of Power supply block <PC1/PC2 -P.C.Board>
2. 6. Removal of DMD block <Mechanical shutter> / Liquid cooling unit
2. 7. Removal of Rod (Assy)
2. 8. Removal of Iris unit (Assy)
2. 9. Removal of Analysis mirror / Lens Mount (Assy)
3. Wirring
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ DIS-19
3. 1. K-P.C.Board
3. 2. PC-P.C.Board
3. 3. DMD block
3. 4. Signal processing block
3. 5. RL-P.C.Board
3. 6. RM-P.C.Board
3. 7. Lamp fan
1. Parts Location
1. 1. Electrical Parts Location (P.C.Board)
Image processing system / Microcomputer
Relay Board (A-WF)
Control terminal / Fan,Iris,Motor Drive
Front IR receiver / Status LED
Geometric Adjustment
Rear IR receiver
Network (LAN)
Relay Board (Lamp case)
Control Panel
Lamp memory connection
DMD drive
Temp sensor (Intake/Exhaust)
Board Name
Function summary
Board Name
Function summary
S
FG/FR
A
G
WF
WL
RW
R
BR
LR/LL
ER/EL
M1
TL
M3
M2
M1(Int)
H
MR
K
LL
R
PC1
FG(B)
FR(R)
FG(G)
M1(Ext)
RL
BR
R3
B(Lamp1)
B(Lamp2)
S
G
WF
WL
A
RM
PC2
SL
LR
EL
ER
B(Lamp3)
B(Lamp4)
RW
DIS-2
DMD drive
Temp sensor (Intake/Exhaust)
Ballast power/control
Temp sensor (Air flow)
Power supply (DC-DC)
Luminance Sensor
AC power distribution, Fuse
Iris posistion sensor / Iris relay board
Relay Board (Lens nounter motor)
Operation panel lighting
Relay Board (Fan)
Terminal panel lighting
Rear cover connection / Interlock
1. 2. Electrical Parts Location (Fan)
FG/FR
B
RL
SL
TL
R3
M1
M2
M3
K
H/MR
PC
RM
Ballast 2 Fan
Inrake 2 Fan
Lamp-L Fan
Exhaust 1 Fan
Exhaust 3 Fan
Exhaust 2 Fan
Power Fan
Lamp 4 Fan
Exhaust 4 Fan
Lamp 1 Fan
Lamp 2 Fan
Intake 1 Fan
Lamp-R Fan
Color prism 1 Fan
Color prism 2 Fan
Color prism 3 Fan
Ballast 1 Fan
Lamp 3 Fan
Signal block Fan
DIS-2
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