25TK-790/(B)/H(B)DISASSEMBLY FOR REPAIR6. Disassembly of the Display Unit(X54-3190) : KCH-101. Pull out the VOL and UP/DOWN knobs ( 1 ).2. Remove the 2 hexagnal nuts ( 2 ).3. Disconnect the 2 connectors (CN2 and CN4) of the dis-play unit (X54-3190 A/3). You can remove the UP/DOWN encoder ( 3 ).4. Remove the waterproof seal ( 4 ).5. Remove the 4 screws ( 5 ) holding the speaker and PCboard fitting.6. Remove the 3 screws ( 6 ). You can remove the displayunits (X54-3190 A/3 and C/3) ( 7 and 8 ).7. Remove the 3 screws ( 9 ), and remove the sub-panel( 10 ) and keytop ( 11 ).7. Disassembly of the Display Unit(X54-3200) : KCH-111. Pull out the VOL and UP/DOWN knobs ( 1 ).2. Remove the 2 hexagnal nuts ( 2 ).3. Remove the waterproof seal ( 3 ).4. Disconnect the connector (CN4) of the display unit (X54-3200 A/2), and remove the 5 screws ( 4 ). you canremove the up/down encoder ( 5 ) and display unit.5. Remove the 4 screws ( 6 ), and remove the sub-panel( 7 ) and keytop ( 8 ).5436789991011122CN4CN2C/3B/3A/3122344566678B/2A/2CN4