DOWNLOAD Panasonic PT-DZ21KU / PT-DZ21KE / PT-DS20KU / PT-DS20KE / PT-DW17KU / PT-DW17KE Service Manual ↓ Size: 41.87 MB | Pages: 127 in PDF or view online for FREE

Model
PT-DZ21KU PT-DZ21KE PT-DS20KU PT-DS20KE PT-DW17KU PT-DW17KE
Pages
127
Size
41.87 MB
Type
PDF
Document
Service Manual
Brand
Device
Projector / 3-CHIP DLP BASED PROJECTOR
File
pt-dz21ku-pt-dz21ke-pt-ds20ku-pt-ds20ke-pt-dw17ku-.pdf
Date
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A
A
A
A
　● SDI1 input checks (DZ21K/DS20K only)
 Voltage on IC3071 15pin is 0.4 V or less.
 Check and repair IC3072 and the peripheral circuits.
 Check the voltage on the power lines.
    IC3060  1pin : Approx 3.3V
    IC3401  1pin : Approx 1.2V
A
 Check and repair IC3060,IC3401 and the peripheral
 circuits.
　● SDI2 input checks (DZ21K/DS20K only)
A
 Check the voltage on the power lines.
    IC3059  1pin : Approx 3.3V
    IC3401  1pin : Approx 1.2V
A
 Check and repair IC3059,IC3401 and the peripheral
 circuits.
 Follow the section "A-P.C.Board operation checks".
 Voltage on IC3072 7pin is 0.4 V or less.
 Check and repair IC3071 and the peripheral circuits.
 Check the clock frequency on R3444.
    3D-SDI signal is inputted : Approx 148.5 MHz
    HD-SDI signal is inputted : Approx 74.25 MHz
A
 Check and repair IC3058 and the peripheral circuits.
A
A
A
A
 Check and repair IC3058 and the peripheral circuits.
 Check and repair IC3058 and the peripheral circuits.
 Follow the section "A-P.C.Board operation checks".
A
 Check the waveform at R3477(G9), R3444(CLK),
 R3484(HS,VS).
A
 Check and repair IC3058 and the peripheral circuits.
A
A
 Check the clock frequency on R3446.
 Approx. 74.25 MHz
 Check the waveform at
 R3487(G9),R3446(CLK),R3493(HS,VS).
NG
NG
OK
OK
NG
NG
OK
OK
NG
NG
OK
OK
NG
NG
OK
OK
INF - 33
A
A
A
A
A
A
 FG/FR-P.C.Board checks and replace.
 WF-P.C.Board checks and replace.
 Check and repair IC3501,X3502 and the peripheral
 circuits.
　● PinP of RGB1/RGB2 input checks
A
 Check the waveform at
 C3166(R),C3165(G),C3167(B),TPA07(HS),TPA08(VS)
　● A-P.C.Board operation checks
A
 Check the clock waveform.
    R3577 : 24.5MH
    R3573 : 39.8MH
A
A
 Check and repair IC3520 and the peripheral circuits.
 The voltage of R3695 is 1.5V.
 Check and repair IC3510 and the peripheral circuits.
 The voltage of R3671 is 1.2V.
 Check and repair IC3511 and the peripheral circuits.
 FG/FR-P.C.Board checks and replace.
 WF-P.C.Board checks and replace.
A
 Check the waveform around IC3501 (no input).
    A3 connector 57pin(CLK) : (DZ21K) 159.5MHz,
　　　　　　　　　　　　    　(DS20K,DW17K) 103.4MHz
 The voltage of R3759 is 0.75V.
 Turn off a PinP mode.
 Check the picture condition RGB1, RGB2 input.
A
 Check the waveform at
 R3289(G9),R3260(CLK),R3259(HS,VS).
A
A
 Check and repair IC3501 and the peripheral circuits.
RW
 Check the connector of the RW-P.C.Board.
     RW1-A3, RW2 －WF1
RW   Replace the RW-P.C.Board.
A
 Follow the section "A-P.C.Board operation checks".
 Check the waveform at
 R3487(G9),R3446(CLK),R3493(HS,VS).
A
 Check and repair IC3058 and the peripheral circuits.
 Check and repair IC3064(Sync SW) and the peripheral
 circuits.
 Check and repair IC3058 and the peripheral circuits.
NG
OK
OK
NG
OK
OK
NG
NG
NG
OK
NG
OK
NG
OK
NG
OK
NG
OK
NG
OK
INF - 34
* CPU : Central Processing Unit
A
A
G
G
 The voltage of R3672 is 1.2V.
 Check and repair IC3512 and the peripheral circuits.
　● Cannot control from the front side of the main unit.
 ■ Remote control does not respond
G
　● Cannot control from the rear side of the main unit.
G
 Check the cable between connectors G19 and BR1.
 Replace the BR-P.C.Board.
 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.
 Check IC6001.
 Replace the G-P.C.Board.
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
G
 Check and Replace cable between connectors P21 and
G10.
 Replace the PC1-P.C.Board.
A
 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
G
 When remote control is operated, the signal can be
 detected at 6pin of IC6012.
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.
G
 Replace the G-P.C.Board.
NG
OK
NG
NG
OK
OK
NG
NG
OK
OK
NG
NG
OK
OK
INF - 35
G
G
G
S
G
 Replace the G-P.C.Board.
 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.
 ■ 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.
 ■ SERIAL IN/OUT does not respond
 Check RS-232C cable connection. (JK6003/JK6004)
  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.
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
OK
NG
NG
OK
OK
NG
NG
OK
NG
OK
INF - 36
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