Akai DDS 80 User manual

SPECIFICATION
STANDARD (DIGITAL DJ MEDIA RACK)
OUTPUT LEVEL…………………………2.2

0.2 Vms (1KHz 0dB)
S/N RATIO……………………………….MORE THAN 80dB
FREQUENCY RESPONSE………………20Hz~20KHz

2 dB
DYNAMIC RANGE………………………MORE THAN 80dB
CHANNEL SEPARATION……………….MORE THAN 80dB
CHANNEL BALANCE……………………

1dB
HARMONIC DISTORTION………………LESS THAN 0.03%
SERVICE MANUAL
MODEL:DDS 80(DIGITAL DJ SYSTEM+DIGITAL DJ MEDIA RACK)

DISASSEMBLY PROCEDURES
1. REMOVAL OF TOP COVE. (Fig. 1)
(A) TAKE OUT THE 6 PCS SCREW FROM THE RACK EARS.
(B) TAKE OUT THE 4 PCS SCREW FROM THE TOP COVE
Fig.1
2. REMOVAL OF HARD DISK AND FRONT PANEL .(Fig.2)
(A) TAKE OUT THE 11 PCS SCREW FROM THE PANEL PLATE
(B) KEY LOCK POSITION MUST ON THE UNLOCK.
(C) TAKE OUT THE 2 PCS SCREW AND TAKE OUT THE HARD DISK FROM THE FIXED HOLDER.
(D) TAKE OUT THE 3 PCS SCREW AND TAKE OUT THE 3 PCS CONNECTOR FROM THE OP/CL PCB
ASS’Y.
(E) TAKE OUT THE 2 PCS SCREW FROM THE PROTECT FRAME AND TAKE OUT THE 1 PC KNOB POWER
AND 2 PCS RUBBER KNOB FROM THE OP/CL PCB ASS’Y .
(F) TAKE OUT THE 4 PCS SCREW AND TAKE OUT THE 1PC CONNECTOR FROM THE USB PCB ASS’Y
AND .
(G) TAKE OUT THE 1 PC SPRING AND TAKE OUT THE 1 PC TRAY PANEL PRINTING.
Fig.2

DISASSEMBLY PROCEDURES
3. REMOVAL OF OP/CL PCB AND USB PCB (Fig.3)
(A) TAKE OUT THE 4 PCS SCREW FROM THE FIXED PLATE.
(B) TAKT OUT THE 2 PCS SCREW AND TAKE OUT THE 2 PCS CONNECTOR FROM THE DVD AND IDE TO
USB ASS’Y.
(C) TAKE OUT THE 2 PCS SCREW AND 1 PC CONNECTOR FROM THE IDE TO USB ASS’Y.
(D) TAKE OUT THE 1 PC SCREW, TAKE OUT THE 2 PCS NUT AND TAKE OUT THE 1 PC CONNECTOR
FROM THE HD ADAPTOR PCB ASS’Y.
(E) TAKE OUT THE 4 PCS SCREW FROM THE DRIVE CAGE RL.
(F) TAKE OUT THE 2 PCS SCREW , TAKE OUT THE 4 PCS CONNECTOR AND TAKE OUT THE 1 PC NAME
PLATE FROM THE USB HUB ASS’Y.
(G) TAKE OUT THE 2 PCS SCREW AND TAKE OUT THE 4 PCS CONNECTOR FROM THE I/O PCB ASS’Y.
(H) TAKE OUT THE 4 PCS SCREW FROM THE SWITCHING POWER.
(I) TAKE OUT THE 9 PCS SCREW FROM THE FIXED PLATE AND P.C BOARD.
Fig.3

DISASSEMBLY PROCEDURES
4.REMOVAL OF CONTROL PANEL (Fig. 4)
(A)TAKE OUT THE 12 PCS SCREW FROM THE CONTROL PANTEL AND FIXED PLATE.
(A)
Fig.4
5.REMOVAL OF FUNCTIONAL PCB(Fig.2)
(A) TAKE OUT THE 2 PCS VR KNOB FROM THE FRONT PANE.
(B) TAKE OUT THE 2 PCS SCREW AND TAKE OUT THE 1 PC TOUCHDOWN PANEL FROM THE USB PCB
ASS’Y.
(C) TAKE OUT THE 1 PC CONNECT FROM THE USB PCB ASS’Y.
(D) TAKE OUT THE 17 PCS SCREW AND TAKE OUT THE 1 PC CONNECT FROM THE PC BOARD ASS’Y.
(E) TAKE OUT THE 4 PCS SCREW AND TAKE OUT THE 2 PCS CONNECT FROM THE SENSOR PCB ASS’Y.
(F) TAKE OUT THE 3 PCS SCREW AND TAKE OUT THE 1 PC CONNECT FROM THE LCM PCB ASS’Y.
(G) TAKE OUT THE 4 PCS SCREW AND TAKE OUT THE 1 PCRUBBER FROM THE FIXED HOLDER.
(H) TAKE OUT THE 1 PC TFT PANEL.
(C)
(B)
(E)
(A)
(D)
(E)
(H)
(G)
(F)
(G)
Fig.5

DISASSEMBLY PROCEDURES
6. REMOVAL OF TOP COVE. (Fig. 6)
(A) TAKE OUT THE 2 PCS 5mm E RING AND TAKE OUT THE 2 PCS ADJUST TURNTABLE FROM THE
FRONT PANEL AND FIXED HOLDER.
(B) TAKE OUT THE 2 PCS WASHER AND TAKE OUT THE 2 PCS COPPER AXIS FROM THE FIXED HOLDER.
(C) TAKE OUT THE 1 PC ROTATE AND TAKE OUT THE 1 PC NAME PLATE.
(C)
(C) (A)
(B)
(B)
(A) (B)
(B) (A)
(A)
Fig.6
7. REMOVAL OF TOP COVE. (Fig. 3)
(A) TAKE OUT THE 4 PCS SCREW AND TAKE OUT THE 3PCS CLIP FROM THE CPU PCB ASS’Y.
(B) TAKE OUT THE 4 PCS CONNECT FROM THE CPU PCB ASS’Y.
(C) TAKE OUT THE 11 PCS SCREW AND TAKE OUT THE 1PC CLIP FROM THE I/O PCB ASS’Y.
(D) TAKE OUT THE 3 PCS CONNECT FROM THE I/O PCB ASS’Y.
(E) TAKE OUT THE 3 PCS SCREW AND TAKE OUT THE 1PC POER CABLE FROM THE REAR COVER.
(F) TAKE OUT THE 2 PCS SCREW FROM THE RUBBER STAND AND TAKE OUT 2 PCS PU STAND .
(E)
(B)
(A)
(B)
(D)
(C)
(C)
(F)
(E)
(F)
(F)
Fig.7