Accuphase AD-9 Buku Petunjuk - Halaman 2

Jelajahi secara online atau unduh pdf Buku Petunjuk untuk Sistem I/O Accuphase AD-9. Accuphase AD-9 2 halaman. Analog disc input board

Halaman Cetak
Accuphase AD-9 Buku Petunjuk
Analog Disc Input Board
Thank you for selecting the Accuphase AD-9, AD-10 Analog Disc Input Board. This option
board is designed for installation in one of the option slots on the rear of an Accuphase
component. It provides a set of inputs for signals from an analog record player.
Usage details of the board will differ, depending on the Accuphase component in which the
board is installed. To ensure correct use, please read this document first and then refer to the
instruction manual of the Accuphase component for additional information.
＊The board conforms to the AAB (Accuphase Analog Bus) interface standard.
LEFT, RIGHT analog record player input jacks
Connect the output cable from the analog record player to these
jacks.
GND terminal
Connect the ground cable that emerges from the analog record
player to this terminal.
AD-9
AD-10
DIP switches S1, S2, S3, S4, S5
Note:
Use a sharp pointed object to move the switch levers and make sure that the levers are set fully
to one side. If a lever is set only half-way, correct operation is not possible.
● 
1
S1, S2: MM/MC selection
● 
S3: Input impedance selection
2
for MC: 10/30/100 ohms
● 
3
S4, S5: Subsonic filter ON/OFF
Component side
The illustration shows the position of switches S1 - S5 on the board.
The switch position is identical for the AD-9 and AD-10.
● 
S1, S2: MM/MC equalizer gain selector
1
MM
MC
MM: Use this position for moving magnet cartridges with high output
Gain: 36dB
Input Impedance : 47 kohms
MC: Use this position for moving coil cartridges with low output
1, 2, 3, 4 : ON
1, 2, 3, 4 : OFF
Gain : 62dB
Factory default
setting
Input Impedance : As selected with S3
Usage
＊ Install the board in any empty slot.
Set these switches to the required positions before inserting the board.
S1
ON
S5
1
2
3
4
S3
S4
ON
S2
1
2
3
4
AD-10
＊ This switch affects both the left and right channels.
AD-9 / AD-10
● 
2
S3: MC input impedance selector
100Ω
30Ω
1, 2, 3, 4 : OFF
1, 2 : OFF
3, 4 : ON
Factory default
setting
● 
3
S4, S5: Subsonic filter on/off
Factory default
ON
setting
OFF
1, 2, 3, 4 : OFF
1
2
3
4
ON
1, 2, 3, 4 : ON
ON
1
2
3
4
Caution
Do not touch circuit components, solder areas, or exposed parts of connectors,
to prevent possible damage and contact problems. Hold the board only at the
PCB edges or the rear panel.
1
Set the power switch of the Accuphase compo-
nent to OFF.
2
On the rear panel, loosen the two screws at the
top and bottom and remove the panel covering one
option slot (see Figure 1).
3
Insert the option board by sliding it into the top
and bottom guide rails of the slot (see Figure 2).
When the board touches the internal connector,
give it a slight push until the board is firmly seated.
(The board must be flush with the panel.)
4
AD-9
Secure the board with the two screws at the top
and bottom.
Caution
 
Before inserting or removing an option board, be sure to turn the power of the
●
Accuphase component off to prevent the risk of damage.
 
Tighten the two fastening screws firmly. If the screws are not properly secured,
●
ground connection will be impaired and damage may occur.
H101X
INSTRUCTION MANUAL
＊ This switch affects both the left and right channels.
As a general guideline, set this switch as follows:
10Ω
For MC cartridges with internal impedance of 20 ohms
or more: 100 ohm position
For MC cartridges with internal impedance of less than
20 ohms: 30 ohm or 10 ohm position
Generally, the input impedance setting should be
 ●
1, 2 : ON
about 2 to 3 times the rated cartridge impedance.
3, 4 : OFF
However, since the requirements of some car-
tridges may vary, the final setting should be deter-
mined by ear.
＊ Set both switches to the same position.
This filter has a cut-off frequency of 25 Hz and a steep
attenuation slope of -12 dB/octave. lt cuts off unwanted
subsonic signal components without affecting the audible
range.
Installation
＊ The illustration shows the E-250.
Guide rail
Guide rail
Fig. 1
ACCUPHASE LABORATORY, INC.
2-14-10, SHIN-ISHIKAWA, AOBAKU, YOKOHAMA 225-8508, JAPAN
820-3143-30（B1）  Printed in Japan
72
4-
00
72
19
4-
00
-0
0
20
-0
0
Sub
Option
panel
board
Fig. 2