— 13 —
DISASSEMBLY
1. Remove the battery cover and the batteries.
2. Remove 14 screws on the bottom of the product, and the lower plate.
Note: Fix the screws in the right order when assembling.
3. Remove 19 screws on the bottom of the product.
Note: Make sure to fix the screws with the arrow marks
d
in the below figure only.
4. Remove the upper case.
5. Unsolder six connectors.
Connector (JJ2)
(To M649-MAA2 PCB)
Connector (JK2)
(To M649-LCA1 PCB)
Connector (JA2)
(To M6111T-KY1M PCB)
Connector (JH2)
(To M474-LD1M PCB)
Connector (JI2)
(To M474-LD2M PCB)
Connector (JB2)
(To M6111T-KY2M PCB)
LOWER PLATE
Fix a screw here first.
Summary of Contents for LK-90TV
Page 1: ...ELECTRONIC KEYBOARD LK 90TV JUN 2004 LK 90TV Ver 1 Jun 2005 INDEX...
Page 8: ...6 PRINTED CIRCUIT BOARDS M649 MAIN PCB Bottom View Top View...
Page 9: ...7 M649 SUB1 PCB M649 SUB2 PCB Bottom View Top View Bottom View Top View...
Page 10: ...8 M649 CONSOLE PCB Top View Bottom View...
Page 12: ...10 M474 LED1 PCB Top View Bottom View M474 LED2 PCB Top View Bottom View...
Page 14: ...12 M6111T KEY1 PCB M6111T KEY2 PCB Top View Bottom View Top View Bottom View...
Page 24: ...22 SCHEMATIC DIAGRAMS M649 MAIN PCB 1 2...
Page 25: ...23 M649 MAIN PCB 2 2...
Page 26: ...24 M649 SUB PCB 1 2...
Page 27: ...25 M649 SUB PCB 2 2...
Page 28: ...26 M649 CONSOLE PCB...
Page 29: ...27 M649 LCD PCB...
Page 30: ...28 CSM446 LED PCBs...
Page 31: ...29 M6111T KEY1 PCB...
Page 32: ...30 M6111T KEY2 PCB...
