JVC PD-42WV74 Service Manual page 14

3.1.20 DISASSEMBLY PDP UNIT
3.1.20.1 REMOVING THE SMPS PWB
• Remove the REAR COVER.
(1) Remove the CN8007/CN8008/CN8004/BUFFER/CN8003/
CN8009/CN8002 connectors on the SMPS PWB.
(2) Remove the 8 screws [g].
(3) Remove the SMPS PWB.
3.1.20.2 REMOVING THE X-MAIN PWB
• Removing the REAR COVER.
(1) Remove the CN4001/CN4002/CN4003/CN4004/CN4005
connectors on the X-MAIN PWB.
(2) Remove the 8 screws [h].
(3) Remove the X-MAIN PWB.
3.1.20.3 REMOVING THE Y-BUF-U PWB
• Remove the REAR COVER.
(1) Remove the
connectors on the Y-BUF-U PWB.
(2) Remove the 5 screws [I].
(3) Lift the Y-BUF-U PWB slightly, and remove the CN5404/
CN5405 connectors on the Y-BUF-U PWB.
(4) Remove the Y-BUF-U PWB.
3.1.20.4 REMOVING THE Y-BUF-L PWB
• Remove the REAR COVER.
(1) Remove the
connectors on the Y-BUF-L PWB.
(2) Remove the 5 screws [j].
(3) Lift the Y-BUF-L PWB slightly, and remove the CN5504/
CN5505 connectors on the Y-BUF-L PWB.
(4) Remove the Y-BUF-L PWB.
3.1.20.5 REMOVING THE Y-MAIN PWB
• Remove the REAR COVER.
• Remove the CHASSIS BASE.
• Remove the Y-BUF-U PWB.
• Remove the Y-BUF-L PWB.
(1) Remove the CN5001/CN5008
PWB.
(2) Remove the 7 screws [k].
(3) Remove the Y-MAIN PWB.
1-14 (No.YA029)
CN5401/CN5402/CN5403/CN5406
CN5501/CN5502/CN5503/CN5506
connectors on the Y-MAIN
3.1.20.6 REMOVING THE LOGIC-MAIN PWB
• Remove the REAR COVER.
• Remove the CHASSIS BASE.
(1) Remove the CN101/CN201/CN401/CN402/CN403/CN803
connectors on the LOGIC-MAIN PWB.
(2) Remove the 6 screws [l].
(3) Remove the LOGIC-MAIN PWB.
3.1.20.7 REMOVING THE E-BUF PWB
• Remove the REAR COVER.
• Remove the BACK FRAME.
• Remove the CHASSIS BASE.
• Remove the SPEAKER BRACKET (left).
(1) Remove the
connectors on the E-BUF PWB.
(2) Remove the 6 screws [m].
(3) Remove the E-BUF PWB.
3.1.20.8 REMOVING THE F-BUF PWB
• Remove the REAR COVER.
• Remove the BACK FRAME.
• Remove the CHASSIS BASE.
(1) Remove the FC4/CN402/FE1/FG1
BUF PWB.
(2) Remove thr 4 screws [n].
(3) Remove the F-BUF PWB.
3.1.20.9 REMOVING THE G-BUF PWB
• Remove the REAR COVER.
• Remove the BACK FRAME.
• Remove the CHASSIS BASE.
• Remove the SPEAKER BRACKET (right).
(1) Remove the GC5/GC6/GC7/CN403/GF1
the G-BUF PWB.
(2) Remove the 6 screws [o].
(3) Remove the G-BUF PWB.
3.1.20.10 REMOVING THE VIDEO SMPS PWB
• Remove the REAR COVER.
(1) Remove the CN9001/CN9002/CN9004/CN9005/CN9006/
CN9007 connectors on the VIDEO SMPS PWB.
(2) Remove the 4 screws [p].
(3) Remove the VIDEO SMPS PWB.
EC1/EC2/EC3/CN401/CN806/EF1
connectors on the F-
connectors on