WARNING: This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO
EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux
vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
WARNING: THIS APPARATUS MUST BE EARTHED
IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:
GREEN-AND-YELLOW: EARTH
BLUE: NEUTRAL
BROWN: LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your
plug, proceed as follows:
The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety
earth symbol
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
or colored GREEN or colored GREEN and YELLOW.
WARNING
■
Components having special characteristics are marked and must be replaced with parts having specification equal to those originally
installed.
• Some component parts on the PSANH circuit board
maintain a high voltage even when the power is switched
off. For this reason to avoid an electrical shock, do not
touch the upper metallic part of the following capacitors
until the remaining voltage has discharged.
Before starting the service work, connect discharging
resistors (220 Ω 10W) to the terminals indicated in the
figure below to discharge electricity. (7 points)
The required discharging time is about 10 seconds.
Check that the DC voltage between the terminals
measures close to 0 (zero) volts using a multi-meter to
make sure that the discharge is completed.
Note:
Do not touch the IC201 and its heat sink before
discharging the C205.
This product has various cables (wires and connector
assemblies) inside. To prevent touching component to
the cables and/or connection mistake, perform the cable
connection and fixing cables according to the following
instructions referring the wiring diagram, P3 of the circuit
diagram.
Notice: Since the following pictures are taken of the
preproduction product, they may differ from the
commodity products in detail. However, the wiring
and so on is not so differ between them. So, refer
only to wiring and so on.
(総組立配線図)
1. Wiring of the PN-AN circuit board
1) Process the PN FFC assembly (WR37010). (Fig. 1, 2)
2) Connect the PN FFC assembly (WR37010) to the PNAN circuit board. (Fig. 3)
3) Install the PN-AN circuit board to the front panel.
Connect the wire of the FAN to each connector. (Fig. 8)
4. Attaching of the support cushion
Attach the support cushion (WN15950) at the specified
area on the pattern side of the CONTROL circuit board.
(Fig. 9)
Note: Be sure to remove the oil and the dust, etc. on
the attaching surface before attaching the support
cushion.
Fig. 8
3. ファンの配線
ファンの線材を各コネクターへ接続します。(図8)
(図 8)
4. サポートクッションの取り付け
CONTROL シートパターン面の所定の位置にサポート
クッション(WN15950)を取り付けます。(図 9)
注意: サポートクッションを取り付ける前に、取り付
け面の油、埃などはきれいに取り除いてくださ
い。
Fig. 9
(図 9)
9
Page 10
NXAMP4x4
5. Wiring of the AC-INLET
a) Set a cord holder before installing the PSANHB circuit
board to the enclosure. (Fig. 10)
b) Set a ferrite-core at the specified area on the PSANHB
circuit board, and fasten the ferrite-core with a cord
holder. (Fig. 11)
Fig. 10
(図 10)
c) Pass the live and neutral wires of the AC-INLET through
the ferrite core’s hole twice and wind them to the ferrite
core.
Screw each screw terminal to the specified terminal.
(Fig. 12, 13)
Fasten the GND wire with a cord holder. (Fig. 12, 13)
Screwing torque: GND LINE 1.8N • m /
L, N LINE 0.78 • m
5. AC インレットの配線
a) PSANHB シートを取り付ける前に、インシュロックタ
イをセットします。(図 10)
b) PSANHB シートの所定の位置にフェライトコアをセッ
トし、インシュロックタイで固定します。(図 11)
Fig. 11
(図 11)
c) AC インレットの L、N の線をフェライトコアの穴に 2
回通して、フェライトコアに巻きつけます。
各端子を図のように固定します。(図 12、13)
GND 線をインシュロックタイで図のように固定しま
す。(図 12、13)
ネジ締め付けトルク: GNDLINE1.8 N・m /
L、NLINE0.78・m
10
U/J destination
Cord holder
(イン シュロックタイ)
Fig. 12
(U / J 仕向)
(図 12)
CHN destination
Cord holder
(イン シュロックタイ)
Fig. 13
(CHN 仕向)
(図 13)
Page 11
NXAMP4x4
d, e) Fix the wires to the terminal with the screws, and refer to
the fig. 14 and fig. 15 for the direction of each terminal.
Screw the GND wire’s screw terminal of the upper ACINLET as shown in the figure, and don’t fasten it with a
cord holder. (Fig. 14, 15)
Fig. 14
(図 14)
d
、
e)端子をネジで固定します。このとき端子の向きは図に
従ってください。
上側の AC インレットの GND 線を図のようにネジで固
定します。ただし、このときインシュロックタイで固
定しないでください。(図 14、15)
Fig. 15
(図 15)
11
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NXAMP4x4
6. Wiring of the PA unit
Connect the wire to the CN401. (Fig. 18, 19, 20 and 21)
CN401
RED (赤)
NOTE: The wire to be connected is WK02080.
Install this PA unit on the upper left side of
enclosure.
Hereafter, this unit is called PA unit of CH1.
Fig. 18
6. PA ユニットの配線
下図のように CN401 へ線材を接続します。(図 18、
19、20、21)
(図 18)
注意: 線材(WK02080)を接続します。
この PA ユニットを筐体の上左側へ取り付け
ます。
これ以後、このユニットを CH1 の PA ユニッ
トと呼びます。
CN401
BLUE (青)
NOTE: The wire to be connected is WK17090.
Install this PA unit on the upper right side of
enclosure.
Hereafter, this unit is called PA unit of CH2.
Fig. 19
(図 19)
注意: 線材(WK17090)を接続します。
この PA ユニットを筐体の上右側へ取り付け
ます。
これ以後、このユニットを CH2 の PA ユニッ
トと呼びます。
12
Page 13
CN401
YELLOW (黄)
Fig. 20
NXAMP4x4
(図 20)
NOTE: The wire to be connected is WK17100.
Install this PA unit on the lower left side of
enclosure.
Hereafter, this unit is called PA unit of CH3.
CN401
GREEN (緑)
NOTE: The wire to be connected is WK17110.
Install this PA unit on the lower right side of
enclosure.
Hereafter, this unit is called PA-UNIT of CH4.
Fig. 21
注意: 線材(WK17100)を接続します。
この PA ユニットを筐体の下左側へ取り付け
ます。
これ以後、このユニットを CH3 の PA ユニッ
トと呼びます。
(図 21)
注意: 線材(WK17110)を接続します。
この PA ユニットを筐体の下右側へ取り付け
ます。
これ以後、このユニットを CH4 の PA ユニッ
トと呼びます。
* The following figure describes a layout drawing of
the PA units seen from the front panel. (Fig. 22)
CH1
RED
(赤)
CH3
YELLOW
(黄)
Fig. 22
PSANHA
PSANHB
(図 22)
※ 次の図は、フロントパネル側から見た PA ユニッ
トのレイアウト図です。(図 22)
CH2
BLUE
(青)
CH4
GREEN
(緑)
13
Page 14
NXAMP4x4
7. Wiring and fastening
Connect the following wires at first.
CN313: WK68740
CN203: WK66350
a) Fasten these wires (WK17900, WK17910 and WK94690)
with a cord holder to the hexagonal spacer. (Fig. 23)
Note:Do not fasten the wires (brown and yellow) of
WK94690 because they must be connected to
the PSANHA (upper PSANHA) circuit board
later.
b) Connect the wire (WN52520) of each PA unit (CH1–CH4)
to CH1–CH4 connectors of the OUTANH circuit board
referring the component location printed on the board.
(Fig. 23)
Way of fastening wire
b-1) Fold the wires of the lower PA unit at the center of
them.
b-2) Pull the wires of the upper PA unit toward the PA
unit. (Do not fold these wires.)
7. 配線と固定
初めに下記の線材を接続します。
CN313:WK68740
CN203:WK66350
a) 線材(WK17900、WK17910、WK94690)をインシュ
ロックタイで六角スペーサーへ固定します。(図 23)
注意: 束線(WK94690)の線材(茶色、黄色)は、
後で上側にある PSANHA シートへ接続するの
で、ここでは固定しません。
b) 各 PA ユ ニ ッ ト(CH1 〜 CH4)の線材(WN52520)
を、OUTANH シートに印刷された表示にしたがって
OUTANH シートのファストン端子へ接続します。
(図 23)
線材の固定方法
b-1)下側の PA ユニットの線材を図のように中央で折
りたたみます。
b-2)上側の PA ユニットの線材を PA ユニット側に引っ
張ります。
(この線材は折りたたまないでください。)
a)
14
Fig. 23
(図 23)
Page 15
NXAMP4x4
b-3) Then
fasten these wires with a cord holder as
shown in the figure.
b-4) Fasten these wires (WM04880 x 2, WK16820 x 2)
with a cord holder.
b-5) Fasten these wires (WN52520 x 2, WK16820 x 2)
with a cord holder (2 places).
b-6) Fasten these wires (WN52520, WK16820) with a
cord holder (1 place).
*Bend wire (WN52520) once.
b-7) Fasten these wires (WN52520 x 2, WM04880 x 2)
with a cord holder (2 places).
b-8) Fasten these wires (WN52520, WM04880) by wire
harness Tie (1 place).
*Bend wire (WN52520) once.
c) Connect the wire (WM04880) to connector (CN306) of
the PSANHA circuit board. Connect the wire (WK16820)
to the connector (CN317) of the PSANHB circuit board.
Fasten these wires (WM04880, WK16820) with a cord
holder to the hexagonal spacer as shown in the figure.
(Pass the wires to the PA unit side of a hexagonal
spacer)
d) Connect the wire (WK14210) of the PA unit (CH4) to the
connector (CN315) of the PSANHB circuit board. (Draw
the Black tube to the PA unit side.)
Pull the wire (WK14210) from PA unit to the direction of
T301 and fasten these wires (WK14200, WK14210) with
a cord holder. Before fastening, pull the wire (WK14200)
toward the front panel side in advance.
トの CN315 へ接続します。(スミチューブを PA ユニッ
ト側に寄せます。)
線材(WK14210)を PA ユニットから T301 の方向に
引っ張り、線材(WK14200、WK14210)をインシュロッ
クタイで固定します。このとき線材(WK14200)をフ
ロント側へ引っ張っておきます。
b-8)
b-7)
c)
b-3)
b-7)
b-4)
d)
b-5)
b-3)
c)
b-5)
b-6)
Fig. 24
(図 24)
15
Page 16
NXAMP4x4
e) Connect the wire (WK14210) of the PA unit (CH3) to the
connector (CN312) of the PSANHB circuit board. (Draw
the black tube to the PA unit side.)
Fasten the wire (WK14210) and the wire of the FAN with
a cord holder. (Fig. 22)
f) Twist the wires (white, red, black) of the PA unit more
than two times, and connect them to the terminals
according to the wire color displayed on the PSAN circuit
board. Fasten these wires (white, red, black) and wire
(WM04880) with a cord holder. (2 places)
Then bend the wires (white, red, black), and fasten them
with a cord holder. (Fig. 22)
g) Connect the wires (white, red, black) of PA unit to the
terminals in the same manner as step f).
Fasten these wires (white, red, black) and wire
(WK16820) with a cord holder (2 places). And then,
bend these wires (white, red, black) and fasten them
with a cord holder.
Fasten the wires (WK14210, WK14200) and the wire of
FAN with a cord holder.
h)
h-1) Fasten the wires (WK68740, WK14200, WK66350)
with a cord holder.
e) PA ユニット(CH3)の線材(WK14210)を PSANHB シー
トの CN312 へ接続します。(スミチューブを PA ユニッ
ト側に寄せます。)
線材(WK14210)と FAN の線材を図のようにインシュ
ロックタイで固定します。
l) Connect the wire (WK14210) of PA unit (CH1) to the
connect
(Draw a black tube to the PA unit side.)
Connect the wire (WK14210) of PA unit (CH2) to the
connector (CN315) of the PSANHA circuit board.
(Draw a black tube to the PA unit side.)
Fasten the wire (WK14210) and the wire of FAN with a
cord holder as shown in the figure. (Fig. 24)
m) Twist the wires (white, red, black) of the PA unit more
than two times, and connect them to the FASTON
terminals according to the wire color displayed on the
PSANHA circuit board.
m-1, 2) Fasten these wires (white, red, black) together
m-3) Bend these wires (white, red, black) and fasten
n) Fasten the wire (WN52520) with a cord holder.
(Fig. 25, 26)
Note:When connecting the connector assembly to
or (CN312) of the PSANHA circuit board.
with wires (WM04880, WK16820) with a cord
holder as shown in the figure.
them with a cord holder as shown in the figure.
the CONTROL circuit board、 confirm that the
connector housing pin number of the connector
assembly is the same as the connector pin
number of the circuit board.
l)PA ユニット(CH1)の線材(WK14210)を PSANHA シー
トのコネクター(CN312)へ接続します。(スミチュー
ブを PA-UNIT 側に寄せます。)
PA ユニット(CH2)の線材(WK14210)を PSANHA シー
トのコネクター(CN315)へ接続します。(スミチュー
ブを PA-UNIT 側に寄せます。)
線材(WK14210)と FAN の線材をインシュロックタ
イで図のように固定します。
m) PA ユニットの線材(白、赤、黒)を 2 回以上捻った
後、PSANHA シートに表示された線材の色にしたがっ
てファストン端子に接続します。
m-1、2)これらの線材(白、赤、黒)を線材(WM04880)、
(WK16820)と一緒にインシュロックタイで
固定します。
m-3)それら(白、赤、黒)の線材を折り曲げた後、
インシュロックタイで固定します。
n) 線材(WN52520)を図のようにインシュロックタイで
固定します。
注意: CONTROL シートに束線を接続するとき、
線材側のコネクターハウジングのピン数が
CONTROL シート側のコネクターのピン数と
同じであることを確認してください。
m-1)
l)
m-2)
m-3)
m-3)
n)
l)
m-1)
m-2)
18
Fig. 27
(図 27)
Page 19
NXAMP4x4
o) Fasten the wires (WK02080, WK17100) with a cord
holder to the hole of the RS232-GPI circuit board.
(Fig. 28)
p) 1) Fasten the wires (WK02080, WK17100 and
WK02070) with a cord holder to the hole of the
enclosure. (Fig. 28 *1, 29)
2) Fasten the wires (WK17090, WK17110) with a cord
holder to the hole of the enclosure. (Fig. 28 *2, 29)
o)
p)
p)
*1
*1
o) 線材(WK02080、WK17100)をインシュロックタイ
で RS232-GPI シートの穴へ固定します。(図 28)
p)1) 線材(WK02080、WK17100、WK02070)をイン
シュロックタイで筐体の穴へ固定します。
(図 28*1、29)
2) 線材(WK17090、WK17110)をインシュロック
タイで筐体の穴へ固定します。(図 28*2、29)
*2
p)
*2
p)
Fig. 28
(図 28)
The hole of the enclosure
(筐体の穴)
Fig. 29
(図 29)
19
Page 20
NXAMP4x4
q) Fasten the wires (WK17090 and WK17110) with a cord
holder at the hole of the OPT-AN board. Then connect
the flat cable (WK02120). (Fig. 30)
r) Fasten the wires (WK02080, WK17090, WK17100,
WK17110 and WK02070) with a cord holder at the close
area to the OPT-AN circuit board. (Fig. 30)
s) Fasten the wires (WK68740, WK68760 and WK68770)
with a cord holder. (Fig. 30)
t) Bend the flat cable as shown in the figure. (Fig. 30)
u) Bend the flat cable to prevent it from touching the top
8. Color of the connectors connected to the
connector CN012–CN015
Connect the connector assembly from the PA unit to the
CONTROL circuit board as shown in the figure below.
(Fig. 33)
CN012
RED
(赤)
CN013
BLUE
(青)
Fig. 33
8. CN012 − CN015 へ接続するコネクターの色
PAユニットからの束線を下図のようにCONTROLシー
トへ接続します。(図 33)
CN014
YELLOW
(黄)
(図 33)
CN015
GREEN
(緑)
9. Change of the destination
Set the knob position of the switch SW001 on the
CONTROL circuit board as shown in the figure below.
(Fig. 34, 35)
U/J destination
Fig. 34
(U / J 仕向)
Switch knob
(切替ノブ)
(図 34)
9. 仕向け先の切り替え
CONTROL シートのスイッチ(SW001)を下図のよう
に切り替えます。(図 34、35)
CHN destination
Fig. 35
(CHN 仕向)
Switch knob
(切替ノブ)
(図 35)
21
Page 22
NXAMP4x4
10. Insulation distance between wire (WK17110)
and primary side capacitor
Perform wiring of the connector assembly (WK17110)
with care so that its uncovered portion with the SUMI
tube does not touch the capacitor (C316) on primary
side of the PSANHA circuit board. (Fig. 36, 37)
Fig. 36
(図 36)
11. Adhesive cloth tape
Cover the two screws near R587 and R588 in each PA
unit [190, 220, 250 and 280] with adhesive cloth tape
[185, 215, 245 and 275] as shown in the figure below.
(Fig. 38)
The figure below shows the screw
marked [555] head shape.
To avoid the unit malfunction, make sure
the screw marked [555] head shape is
same as shown below before
assembling the OPT angle.
[555]のネジ頭形状を下図に示します。
動作不良防止のため、OPT アングルを取り
OPT angle
(OPT アングル)
付ける前に、[555]のネジ頭形状が下図のと
おりであることを確認してください。
26
OPT angle
(OPT アングル)
CONTROL
[580][550][550]
[530]: BIND HEAD TAPPING SCREW-S 3x6 MFZN2W3 (--)
[550]: BIND HEAD TAPPING SCREW-S 3x6 MFZN2W3 (--)
[555]: BIND HEAD TAPPING SCREW-S 3x6 MFZN2B3 (--)
[560]: BIND HEAD TAPPING SCREW-S 3x6 MFZN2B3 (--)
[580]: BIND HEAD TAPPING SCREW-S 3x6 MFZN2W3 (--)
Fig. 2
(図 2)
OPT-AN
[580]
[555]
S タイト+ BIND
S タイト+ BIND
S タイト+ BIND
S タイト+ BIND
S タイト+ BIND
Page 27
NXAMP4x4
3. PSANHA Circuit Board
(Time required: about 15 minutes)
3-1. Remove the top cover and the NX-DFLT card.
(See procedure 1.)
3-2. Remove the CONTROL circuit board and the OPT
angle. (See procedure 2.)
3-3. Remove the two (2) screws marked [150A], and remove
the upper ACPS connector assembly. (Fig. 3)
3-4. Disconnect the connector assemblies from the
PSANHA circuit board. (Fig. 3)
3-5. Remove the nine (9) screws marked [450] and the
one (1) hexagonal spacer marked [440]. The PSANHA
circuit board can then be removed. (Fig. 3)
4. OUTANH Circuit Board
(Time required: about 20 minutes)
4-1. Remove the top cover and the NX-DFLT card.
(See procedure 1.)
4-2. Remove the CONTROL circuit board and the OPT
angle. (See procedure 2.)
4-3. Remove the PSANHA circuit board. (See procedure 3.)
4-4. Disconnect the connector assemblies from the
OUTANH circuit board. (Fig. 4)
4-5. Remove the eight (8) screws marked [320], the one
(1) screw marked [330] and the one (1) screw marked
[325]. The OUTANH circuit board can then be removed
together with the two (2) insulation sheets and the two
(2) shields. (Fig. 4)
4-6. Remove the three (3) plastic rivets marked [317]. The
OUTANH circuit board can be separated from the two
(2) insulation sheets and the two (2) shields attached
to them. (Fig. 4)
Note: The two (2) insulation sheets and the two (2)
shields can not be separated because they are
attached each other with both side adhesive
tapes.
[317]: PLASTIC RIVET NRP-345 (--)
[320]: FLAT HEAD TAPPING SCREW-B 3x8 MFZN2B3 (--)
[325]: BIND HEAD TAPPING SCREW-S 3x6 MFZN2W3 (--)
[330]: BIND HEAD TAPPING SCREW-B 3x8 MFZN2B3 (--)
[320]
OUTANH
プラスチックリベット
Fig. 4
(図 4)
[325]
B タイト+ FLAT
S タイト+ BIND
B タイト+ BIND
28
Page 29
NXAMP4x4
5. PSANHB Circuit Board
(Time required: about 25 minutes)
5-1. Remove the top cover and the NX-DFLT card.
(See procedure 1.)
5-2. Remove the CONTROL circuit Board and the OPT
angle. (See procedure 2.)
5-3. Remove the PSANHA circuit Board. (See procedure 3.)
5-4. Remove the OUTANH circuit Board. (See procedure 4.)
5-5. Remove the two (2) screws marked [150B], and remove
the lower ACPS connector assembly. (Fig. 5)
5-6. Remove the two (2) screws marked [390], and remove
the PS Angle 1. (Fig. 5)
5-7. Remove the one (1) screw marked [396], and remove
the GND Angle. (Fig. 5)
5-8. Remove the two (2) screws marked [410], and remove
the two (2) pieces of PS Angle 2. (Fig. 5)
5-9. Disconnect the connector assemblies from the
PSANHB circuit board. (Fig. 5)
5-10. Remove the five (5) screws marked [100], the five
(5) hexagonal spacers marked [90] and the one (1)
hexagonal spacer marked [95]. The PSANHB circuit
board can then be removed. (Fig. 5)
10. Lower left (CH3) PA unit
(Time required: about 25 minutes)
10-1. Remove the top cover and the NX-DFLT card.
(See procedure 1.)
10-2. Remove the CONTROL circuit board and the OPT
angle. (See procedure 2.)
10-3. Remove the PSANHA circuit board. (See procedure 3.)
10-4. Remove the upper left PA unit. (See procedure 8.)
10-5. Disconnect the connector assemblies which connects
the lower left PA unit and other units. (Fig. 8)
10-6. Remove the four (4) screws m ar ked [820C], and
remove the four (4) screw covers marked [810C].
(Fig. 8)
10-7. Remove the six (6) screws marked [210]. The lower
left PA unit can then be removed. (Fig. 8)
11. Lower right (CH4) PA unit
(Time required: about 25 minutes)
11-1. Remove the top cover and the NX-DFLT card.
(See procedure 1.)
11-2. Remove the CONTROL circuit board and the OPT
angle. (See procedure 2.)
11-3. Remove the PSANHA circuit board. (See procedure 3.)
11-4. Remove the upper right PA unit. (See procedure 9.)
11-5. Disconnect the connector assemblies which connects
the lower right PA unit and other units. (Fig. 8)
11-6. Remove the four (4) screws marked [820D], and
remove the four (4) screw covers marked [810D].
(Fig. 8)
11-7. Remove the six (6) screws marked [240]. The lower
right PA unit can then be removed. (Fig. 8)
10.下左側(CH3)PA ユニット(所要時間:約 25 分)
10-1. トップカバー、NX-DFLT カードを外します。
(1 項参照)
10-2. CONTROL シート、OPT アングルを外します。
(2 項参照)
10-3. PSANHA シートを外します。(3 項参照)
10-4. 上左側の PA ユニットを外します。(8 項参照)
10-5. 下左側の PA ユニットと他のユニットを接続している
束線を外します。(図 8)
10-6.[820C]のネジ 4 本を外し、[810C]のネジカバー 4
個を外します。(図 8)
10-7.[210]のネジ 6 本を外し、下左側の PA ユニットを
外します。(図 8)
11.下右側(CH4)PA ユニット(所要時間:約 25 分)
11-1. トップカバー、NX-DFLT カードを外します。
(1 項参照)
11-2. CONTROL シート、OPT アングルを外します。
(2 項参照)
11-3. PSANHA シートを外します。(3 項参照)
11-4. 上右側の PA ユニットを外します。(9 項参照)
11-5. 下右側の PA ユニットと他のユニットを接続している
16. Lower left DC Fan
(Time required: about 23 minutes)
16-1. Remove the top cover and the NX-DFLT card.
(See procedure 1.)
16-2. Remove the CONTROL circuit board and the OPT
angle. (See procedure 2.)
16-3. Remove the PSANHA circuit board. (See procedure 3.)
16-4. Remove the front panel assembly. (See procedure 12.)
16-5. Remove the upper left DC fan. (See procedure 14.)
16-6. Disconnect the lower left DC fan connector assembly
from the PSANHB circuit board. (Fig. 11)
16-7. Remove the two (2) screws marked [40C] and the two
(2) hexagonal nuts marked [50C]. The lower left DC
fan can then be removed. (Fig. 11)
17. Lower right DC Fan
(Time required: about 23 minutes)
17-1. Remove the top cover and the NX-DFLT card.
(See procedure 1.)
17-2. Remove the CONTROL circuit board and the OPT
angle. (See procedure 2.)
17-3. Remove the PSANHA circuit board. (See procedure 3.)
17-4. Remove the front panel assembly. (See procedure 12.)
17-5. Remove the upper right DC fan. (See procedure 15.)
17-6. Disconnect the lower right DC fan connector assembly
from the PSANHB circuit board. (Fig. 11)
17-7. Remove the two (2) screws marked [40D] and the two
(2) hexagonal nuts marked [50D]. The lower right DC
fan can then be removed. (Fig. 11)
Note: See parts list for details of circuit board component parts.
注: シートの部品詳細はパーツリストをご参照ください。
(目次)
44
Page 45
• INANH Circuit Board
NXAMP4x4
to CONTROL
CN006
DCBA
BALANCED INPUTS
Component side
(部品側)
2NA-WJ97320-10
Pattern side
0
(パターン側)
45
Page 46
NXAMP4x4
• CONTROL Circuit Board
A
to PN-AN
CN001
to PSANHB
CN313
to PSANHA
CN313
to PSANHA
CN201
to OUTANH
CN809, CN810
46
Component side
(部品側)
A'
2NA-WR77020-10
0
Page 47
A
• CONTROL Circuit Board
A
NXAMP4x4
to OUTANH
CN809, CN810
to PAANH
(CH1)
CN401
to PAANH
(CH2)
CN401
to PAANH
(CH3)
CN401
to PAANH
(CH4)
CN401
to INANH
W701
to OPT-AN
CN301
A'
2NA-WR77020-10
to RS232-GPI
CN201
Component side
0
(部品側)
47
Page 48
NXAMP4x4
• CONTROL Circuit Board
B
48
Pattern side
(パターン側)
B'
2NA-WR77020-10
0
Page 49
• CONTROL Circuit Board
B
NXAMP4x4
B'
2NA-WR77020-10
Pattern side
0
(パターン側)
49
Page 50
NXAMP4x4
• OUTANH Circuit Board
to PAANH (CH4)
W405 (ORANGE)
to PAANH (CH3)
W405 (ORANGE)
to PAANH (CH2)
W405 (ORANGE)
to PAANH (CH1)
W405 (ORANGE)
to PSANH
CN202
to CONTROL
to CONTROL
CN016
CN016
50
to PSANHB
CN317
CN317
to PSANHA
Component side
Speakon DSpeakon CSpeakon BSpeakon A
POWER OUTPUTS
(部品側)
to PSANHB
to PSANHA
2NA-WJ97320-10
CN306
CN306
0
Page 51
• OUTANH Circuit Board
NXAMP4x4
2NA-WJ97320-10
Pattern side
0
(パターン側)
51
Page 52
NXAMP4x4
• PN-AN Circuit Board
A
SELECT
PEAK
PROTECT
SIGNAL
Component side
(部品側)
1
MUTE
23
MUTEMUTE
52
A'
2NA-WJ97170-10
2
Page 53
• PN-AN Circuit Board
A
NXAMP4x4
Encoder
4A
vol
MUTE
B
to CONTROL
CN009
Component side
AMP PROTECT
STAND-BY
POWER
(部品側)
A'
2NA-WJ97170-10
2
53
Page 54
NXAMP4x4
• PN-AN Circuit Board
B
54
Pattern side
(パターン側)
B'
2NA-WJ97170-10
2
Page 55
• PN-AN Circuit Board
B
NXAMP4x4
B'
2NA-WJ97170-10
Pattern side
2
(パターン側)
55
Page 56
NXAMP4x4
• PAANH Circuit Board
to CONTROL
CN012, CN013, CN014, CN015
CN805, CN806, CN807, CN808
to OUTANH
to PSANH
CN312, CN315
A
A'
Component side
(部品側)
B
56
Pattern side
(パターン側)
2NA-WR77710-20
B'
1
Page 57
• PAANH Circuit Board
A
NXAMP4x4
A'
to PSANH CN307, CN310
to PSANH CN316, CN309
to PSANH CN305, CN308
Component side
(部品側)
B
B'
2NA-WR77710-20
Pattern side
1
(パターン側)
57
Page 58
NXAMP4x4
• PSANHA, PSANHB Circuit Board
to PAANH
to OUTANH W802, W803
to PAANH W404
to PAANH W402
to PAANH W401
to FUN
to CONTROL CN007, CN008
Reduction: 7/10
A
W403
to OUTANH W801
to CONTROL CN011
to PSANHB CN203
to FUN
to PAANH W401
to PAANH W402
to PAANH W404
to PAANH W403
to OUTANH
W804, W805
6
7
5
8
4
9
3
10
2
11
1
12
58
Component side
(部品側)
B'
2NA-WJ97350-70
3
Page 59
NXAMP4x4
• PSANHA, PSANHB Circuit Board
A
Reduction: 7/10
B'
2NA-WJ97350-70
Component side
3
(部品側)
59
Page 60
NXAMP4x4
• PSANHA, PSANHB Circuit Board
Reduction: 7/10
B
60
Pattern side
(パターン側)
B'
2NA-WJ97350-70
3
Page 61
NXAMP4x4
• PSANHA, PSANHB Circuit Board
B
Reduction: 7/10
7
6
8
5
9
4
10
3
11
2
12
1
B'
2NA-WJ97350-70
Pattern side
3
(パターン側)
61
Page 62
NXAMP4x4
• RS232-GPI Circuit Board
to CONTROL CN010
RS232
GPIO
• OPT-AN Circuit Board
Component side
(部品側)
to CONTROL CN017
Expansion slot
Component side
Pattern side
(部品側)
(パターン側)
• LCD SPACER Circuit Board
Component side
62
(部品側)
Pattern side
Pattern side
(パターン側)
(パターン側)
2NA-WJ97320-10
0
Page 63
• NX-DFLT Circuit Board
NXAMP4x4
Expansion
slot
Component side
(部品側)
2NA-WT66120-10
Pattern side
0
(パターン側)
63
Page 64
NXAMP4x4
TEST PROGRAM
■
1. Required items
Computer : DOS/V computer x1 (Pentium 200MHz or more, Windows XP, USB Port)
Software : Software for version up (JTAG Programmer)
Cable : RLINK-ST (USB-JTAG adapter)
Measuring equipment : Power consumption meter
Tools : RS-232C jig x1, GPI jig x1, SLOT jig x1
RS-232C jig
D-SUB 9 pin female connector
GPI jig
SW1
D-SUB 25 pin male connector
/ETH_CS
/ES_CS
SPI_CLK
SPI_MISO
SPI_MOSI
ES_SERIAL_RX
ES_SERIAL_TX
INT_FROM_ES
ES_GPI1
ES_GPI2
ES_GPI3
ES_I2S_DATA0
ES_I2S_DATA1
ES_MCLK
ES_SCLK
ES_LRCK
SOURCE_SEL
a-1
b-1
a-40 b-40
SLOT jig
3.3D
3.3D
XTAL
12.288MHz
Q0
Q1
LV1 69
Q2
Q3
Q0
Q1
LV1 69
Q2
Q3
2. Test connection image
64
SLOT, GPI, RS-232C jig
NXAMP
Measuring
instrument
Page 65
3. Operation
3-1. Entry of the test program
While holding down the [SELECT4], [MUTE4] and [A]
buttons simultaneously, turn the power switch on. The
start up screen appears on the LCD.
Start Up Screen
NXAMP4x4
Press the switch displayed on the LCD as instructed one
by one.
If all instructed switches are OK, the display automatically returns to the test menu screen.
4-2. ENCODER test
Boot1.29
WAIT...
Then release your fingers from the buttons.
The test program starts and the test menu screen appears on the LCD display.
Test Menu Screen
00CHOOSETEST<>
01SWITCH
3-2. Executing the test and judgment display
Select the desired test item from the table below using
the rotary encoder, and press the [B] button to start the
test.
After executing the test, the display returns to the test
menu screen if the test result is OK. If an error occurs,
“ERROR” appears on the LCD and the test program is
stopped. In that case, turn the power switch off and on
again as was done above in 3-1.
4. Outline of tests
4-1. SWITCH test
00CHOOSETEST<>
02ENCODER
Press the [B] button to start the test. The following display appears.
02ENCODER
TURNRIGHT0
Turn the ENCODER knob clockwise. The 2nd line on the
display changes as shown below.
TURN RIGHT 0 –> • • • • • –> TURN RIGHT 19
The following display appears after the 2nd line on the
display reaches TURN RIGHT 19.
02ENCODER
TURNLEFT0
Turn the ENCODER knob counterclockwise. The 2nd
line on the display changes as shown below.
TURN LEFT 0 –> • • • • • –> TURN LEFT 19
The display returns to the test menu screen after the 2nd
line on the display reaches TURN LEFT 19.
4-3. LED test
00CHOOSETEST<>
03LED
Press the [B] button to start the test. The following display appears.
03LED
00CHOOSETEST<>
01SWITCH
Press the [B] button to start the test. The LCD shows one
by one the switch name to be tested as shown below.
01SWITCH
HITSELECTCH1
The LEDs automatically light up one by one in a specific
order as shown on the next page.
All LEDs will light at the same time after each LED individually has been tested. Confirm that each LED is lit
normally. If OK, press the [B] button to return the display
to the test menu screen.
65
Page 66
NXAMP4x4
Lighting order
4-4. LCD test
00CHOOSETEST<>
04LCD
Press the [B] button to start the test.
First the following display appears.
Press the [B] button to continue the test. The test is executed automatically.
After executing the test, the following display appears.
(When an error occurs, “ERROR” appears and the test
program is stopped.)
04LCD
All the dots of the LCD go on and off two times. Finally,
all the dots of the LCD are lit. Confirm that all the dots of
the LCD have lit normally. If OK, press the [B] button to
return the display to the test menu screen.
4-5. RS-232C test
00CHOOSETEST<>
05RS-232C
Connect the RS-232C jig to the R232C port of this unit.
Press the [B] button to start the test. The following display appears.
05RS-232C
RS-232COK?
05RS-232C
RELEASERS-232C
Disconnect the RS-232C jig from the RC232C port of
this unit. Press the [B] button to return the display to the
test menu screen.
4-6. GPI test
00CHOOSETEST<>
06GPI
Connect the GPI jig to the GPIO port of this unit.
Then press the [B] button to start the test. The following
display appears.
06GPI
GPO[0:4]TESTOK?
Switch the GPI jig to the GPO [0:4] position and press
the [B] button to continue the test.
The test executes automatically.
If normal, the following display appears. (If an error
occurs, “ERROR” appears and the test program is
stopped.)
66
06GPI
GPO[5:7]TESTOK?
Page 67
NXAMP4x4
Switch the GPI jig to the GPO [5:7] position. Press the [B]
button to continue the test.
The test executes automatically. If the test result is
OK, the display automatically returns to the test menu
screen. (If an error occurs, “ERROR” appears and the
test program is stopped.)
Disconnect the GPI jig from the GPIO port.
4-7. PORT test
Test for factory inspection only.
4-8. DSP test
00CHOOSETEST<>
08DSP
Press the [B] button to start the test. The following display appears.
08DSP
CPUtoDSPTESTOK?
Press the [B] button to continue the test. The test executes automatically.
If normal, the following display appears.
Press the [B] button to start the test. The following display appears.
09WORDCLOCK
LRCK48kTESTOK?
Press the [B] button to continue the test. The test executes automatically.
If normal, the following display appears.
09WORDCLOCK
LRCK96kTESTOK?
Press the [B] button to continue the test. The test executes automatically.
If the test result is OK, the display automatically returns
to the test menu screen.
(If an error occurs, “ERROR” appears and the test program is stopped.)
4-10. 12C test
00CHOOSETEST<>
1012C
08DSP
DSPtoDSPTESTOK?
Press the [B] button to continue the test. The test executes automatically.
If the test result is OK, the display automatically returns
to the test menu screen.
(If an error occurs, “ERROR” appears and the test program is stopped.)
4-9. WORD CLOCK test
00CHOOSETEST<>
09WORDCLOCK
Press the [B] button to start the test. The following display appears.
1012C
12CTESTOK?
Press the [B] button to continue the test. The test executes automatically.
If the test result is OK, the display automatically returns
to the test menu screen.
(If an error occurs, “ERROR” appears and the test program is stopped.)
67
Page 68
NXAMP4x4
4-11. FLASH test
00CHOOSETEST<>
11FLASH
Press the [B] button to start the test. The following display appears.
11FLASH
FLASHTESTOK?
Press the [B] button to continue the test. The test executes automatically.
If the test result is OK, the display automatically returns
to the test menu screen.
(If an error occurs, “ERROR” appears and the test program is stopped.)
4-12. FAN test
00CHOOSETEST<>
12FAN
Press the [B] button to start the test. The following display appears.
The FAN starts rotating at low speed.
12FAN
LOW
Check that the FAN rotates at low speed, and press the
[B] button to continue the test. The following display appears, and the FAN rotates at middle speed.
12FAN
MIDD
4-13. SLOT test
00CHOOSETEST<>
13SLOT
Rear panel
Expansion slot
(Turn off the power to this unit, and insert the SLOT jig
into the expansion slot. Restart the test program, and
select this test.)
Press the [B] button to start the test. The test executes
automatically.
If every signal is normal, the following display appears
and the LED of the SLOT jig lights.
(If an error occurs, “ERROR” appears and the test program is stopped.)
13SLOT
ANALOGTESTOK?
Input the 1 kHz, -10 ±1 dBu sine wave to the channel
1 input terminal and confirm that the output voltage
obtained at the channel 1 output terminal is +24.1 ±2.0
dBu.
If OK, press the [B] button to return the display to the
test menu screen.
4-14. ATTENUATION test
68
Check that the FAN rotates at middle speed, and press
the [B] button to continue the test. The following display
appears, and the FAN rotates at high speed.
12FAN
HIGH
Check that the FAN rotates at high speed, and press the
[B] button to return the display to the test menu screen.
00CHOOSETEST<>
14ATTENUATION
Press the [B] button to enter the attenuation test mode.
The following display appears.
14ATTENUATION
NOISETESTOK?
Perform the test according to the “Inspection with attenuation test mode”. (See page 79).
If OK, press the [B] button to return the display to the
test menu screen.
Page 69
4-15. ANALOG test
00CHOOSETEST<>
15ANALOG
Press the [B] button to enter the analog test mode. The
following display appears.
15ANALOG
ANALOGTESTOK?
Perform the test according to the “Inspection with analog
test mode”. (See page 79–81)
Press the [B] button. The following display appears.
15ANALOG
MUTETESTOK?
If OK, press the [B] button to return the display to the
test menu screen.
4-16. BRIDGE test
00CHOOSETEST<>
16BRIDGE
Press the [B] button to enter the bridge test mode. The
following display appears.
16BRIDGE
ANALOGTESTOK?
Perform the test according to the “Inspection with
BRIDGE mode”. (See page 82)
If OK, press the [B] button to return the display to the
test menu screen.
4-17. CALIBRATION
00CHOOSETEST<>
17CALIBRATION
Press the [B] button to start the calibration. The following
display appears.
17CALIBRATION
CH1INPUTSIGNALOK?
Input the 1 kHz, +10 dBu sine wave to the channel 1 input terminal, and press the [B] button. The analog input
level is automatically calibrated, and the following display appears.
17CALIBRATION
CH2INPUTSIGNALOK?
NXAMP4x4
Input the 1 kHz, +10 dBu sine wave to the channel 2 input terminal, and press the [B] button. The analog input
level is automatically calibrated, and the following display appears.
17CALIBRATION
CH3INPUTSIGNALOK?
Input the 1 kHz, +10 dBu sine wave to the channel 3 input terminal, and press the [B] button. The analog input
level is automatically calibrated, and the following display appears.
17CALIBRATION
CH4INPUTSIGNALOK?
Input the 1 kHz, +10 dBu sine wave to the channel 4 input terminal, and press the [B] button. The analog input
level is automatically calibrated, and the following display appears.
17CALIBRATION
CH1SETTO38.1dBu?
Input the 1 kHz, +10 dBu sine wave to the channel 1 input terminal.
Adjust the ENCODER so that the output voltage obtained at the channel 1 output terminal is +38.1 dBu,
and press the [B] button.
The analog output level is automatically calibrated, and
the following display appears.
17CALIBRATION
CH2SETTO38.1dBu?
Input the 1 kHz, +10 dBu sine wave to the channel 2 input terminal.
Adjust the ENCODER so that the output voltage obtained at the channel 2 output terminal is +38.1 dBu,
and press the [B] button.
The analog output level is automatically calibrated, and
the following display appears.
17CALIBRATION
CH3SETTO38.1dBu?
Input the 1 kHz, +10 dBu sine wave to the channel 3 input terminal.
Adjust the ENCODER so that the output voltage obtained at the channel 3 output terminal is +38.1 dBu,
and press the [B] button.
The analog output level is automatically calibrated, and
the following display appears.
17CALIBRATION
CH4SETTO38.1dBu?
69
Page 70
NXAMP4x4
70
Input the 1 kHz, +10 dBu sine wave to the channel 4 input terminal.
Adjust the ENCODER so that the output voltage obtained at the channel 4 output terminal is +38.1 dBu,
and press the [B] button.
The analog output level is automatically calibrated, and
the following display appears.
17CALIBRATION
CH1OUTPUTSIGNALOK?
Adjust the input signal voltage so that the output voltage
obtained at the channel 1 output terminal is 40 Vrms (=
+34.3 dBu), and press the [B] button.
The output voltage monitor is automatically calibrated,
and the following display appears.
17CALIBRATION
CH2OUTPUTSIGNALOK?
Adjust the input signal voltage so that the output voltage
obtained at the channel 2 output terminal is 40 Vrms (=
+34.3 dBu), and press the [B] button.
The output voltage monitor is automatically calibrated,
and the following display appears.
17CALIBRATION
CH3OUTPUTSIGNALOK?
Adjust the input signal voltage so that the output voltage
obtained at the channel 3 output terminal is 40 Vrms (=
+34.3 dBu), and press the [B] button.
The output voltage monitor is automatically calibrated,
and the following display appears.
17CALIBRATION
CH4OUTPUTSIGNALOK?
Adjust the input signal voltage so that the output voltage
obtained at the channel 4 output terminal is 40 Vrms (=
+34.3 dBu), and press the [B] button.
The output voltage monitor is automatically calibrated,
and the following display appears.
17CALIBRATION
CH1CONNECT8OHMLOAD
Connect the 8 Ω resistor to the channel 1 output terminal.
Adjust the input signal voltage so that the output voltage
obtained at the channel 1 output terminal is 40 Vrms (=
+34.3 dBu), and press the [B] button.
The output current monitor is automatically calibrated,
and the following display appears.
17CALIBRATION
CH2CONNECT8OHMLOAD
Connect the 8 Ω resistor to the channel 2 output terminal.
Adjust the input signal voltage so that the output voltage
obtained at the channel 2 output terminal is 40 Vrms (=
+34.3 dBu), and press the [B] button.
The output current monitor is automatically calibrated,
and the following display appears.
17CALIBRATION
CH3CONNECT8OHMLOAD
Connect the 8 Ω resistor to the channel 3 output terminal.
Adjust the input signal voltage so that the output voltage
obtained at the channel 3 output terminal is 40 Vrms (=
+34.3 dBu), and press the [B] button.
The output current monitor is automatically calibrated,
and the following display appears.
17CALIBRATION
CH4CONNECT8OHMLOAD
Connect the 8 Ω resistor to the channel 4 output terminal.
Adjust the input signal voltage so that the output voltage
obtained at the channel 4 output terminal is 40 Vrms (=
+34.3 dBu), and press the [B] button.
The output current monitor is automatically calibrated,
and the display returns to the test menu screen.
(If an error occurs, “ERROR” appears and the test program is stopped.)
4-18. STANDBY test
00CHOOSETEST<>
18STANDBY
Press the [B] button to enter the standby mode. The following display appears.
18STANDBY
Measure the primary power consumption, and check
that the measured value is 23 W or less. Press the [B]
button for one second or more, and the display returns
to the test menu screen.
4-19. QUIT (Exit the test program)
00CHOOSETEST<>
19QUIT
Press the [B] button to exit the test program. This unit
enters the ordinary mode.
• When measuring the electrical characteristics, set the power supply voltage and frequency as specified in the table
below.
DestinationPower supply voltageFrequency
U120 V +2/-0 %60 Hz
CHN230 V +2/-0 %50 Hz
1-3. Measuring Instruments
• Use a reliable measuring device capable of precisely measuring the specification values indicated in this document.
• Input impedance of the measuring instrument should be more than 1 MΩ.
• The noise level should be measured with a 22 Hz-22 kHz band pass filter.
When you use the Audio Analyzer System made by Audio Precision, Inc. for noise measurement, set the filter
characteristics as follows.
BW : 22 Hz-22 kHz
Filter (Fltr) : None
1-4. Connections
Each input and output terminal of channels 1-4 are as shown in the figure below.
Ch4
OUT
Ch3
OUT
Ch2
OUT
Ch1
OUT
Ch4
IN
Ch4
LINK
OUT
Fig. 1
1-4-1. Input connector
XLR-3-31 (female) type connectors are used for input terminals in channels 1-4.
Condition : Balanced input
Wiring : pin 1 to ground, pin 2 to hot (+), pin 3 to cold (-)
1-4-2. Output connector
Neutrik SPEAKON connectors are used for output terminals in channels 1-4.
Connect a load resistor between pin 1+ and pin 1- of the Neutrik SPEAKON connector.
Ch3INCh2INCh1
Ch3
LINK
OUT
Ch2
LINK
OUT
IN
Ch1
LINK
OUT
1-4-3. Load resistor
Use a load resistor with no inductivity and a power rating high enough to perform each test safely.
1-4-4. Link out connectors
XLR-3-32 (male) type connectors are used for input terminals in channels 1-4.
Condition : Balanced output
Wiring : pin 1 to ground, pin 2 to hot (+), pin 3 to cold (-)
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1-5. Other
0 dBu is defined as 0.775 Vrms in these inspections.
2. Inspection with ordinary mode
Condition:
• Ground each input terminal via a 600 Ω resistance.
• Do not connect the load resistance to the output terminal.
2-1. Power ON sequence
1) Turn the power switch on. Confirm that the latest firmware version appears on the LCD display.
2) Confirm that all the fans start rotation at low speed within 4 seconds after turning the power switch on.
3) Confirm that the following display appears on the LCD within 18 ±3 seconds after turning the power switch on. Also
confirm that the POWER LED and only one of the VOLUME LEDs for each channel light up.
Measure the primary power consumption and confirm that the measured value is 120 ±30 W.
2-3. Output terminal DC voltage
Measure the DC voltage (Vdc) of each output terminal and confirm that the measured value is Vdc = 0 ±50 mV.
2-4. PEAK indicator
Set this unit to GAIN: 0 dB, VOL: 0 dB.
Input the 20 kHz, 15.7 dBu, sine wave to channel 1 input terminal, and confirm that the PEAK indicator of channel 1 flashes
or lights. Input the 20 kHz, 13.2 dBu, sine wave, and confirm that the PEAK indicator of channel 1goes off.
Perform the same test for channel 2-4 in the same manner.
After test, set this unit to GAIN: 0dB, VOL: -90 dB.
3. Inspection with attenuation test mode
Condition:
• Perform each test in this section in the attenuation test mode. (See “TEST PROGRAM 4-14. ATTENUATION test”)
• Connect an 8 Ω load resistor to each output terminal.
• Ground each input terminal via a 600 Ω resistor.
3-1. Residual noise
Measure the residual noise level at each output terminal and confirm that measured value is -65 dBu or less.
Note: Measure the noise level with the 22 Hz - 22 kHz band pass filter specified at 1-3.
4. Inspection with analog test mode
Condition:
• Perform each test item in this section with the analog test mode of the test program. (See “TEST PROGRAM 4-15.
ANALOG test”)
• Unless otherwise specified, perform the test with an 8 Ω resistor connected to each output terminal.
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NXAMP4x4
4-1. Link out
Input the 1 kHz, -10 dBu sine wave to each input terminal and confirm that the output voltage obtained at each link out
terminal is -10 ±0.5 dBu.
4-2. Efficiency
Input the 1 kHz sine wave to the channel 1 input terminal and confirm that the primary power consumption is 500 ±30 W
when the output voltage obtained at the channel 1 output terminal is +34.7 dBu.
Perform the same test for channels 2-4 in the same manner.
4-3. Gain
Input the 1 kHz, 0 dBu sine wave to each input terminal and confirm that the output voltage obtained at each output
terminal is +34.1 ±1.2 dBu.
4-4. Frequency response
Perform the following test at each channel.
Input the 10 Hz, 1 kHz, 20 kHz, 0 dBu sine wave to the input terminal and one by one measure the output voltage obtained
at the output terminal for each frequency.
Confirm that the output voltage at 10 Hz is 0 ±0.5 dB when compared with the output voltage at 1 kHz (0 dB).
Confirm that the output voltage at 20 kHz is +0.5 ±0.5 dB when compared with the output voltage at 1 kHz (0 dB).
4-5. Distortion
1) Input the 1 kHz sine wave to the channel 1 and channel 2 input terminals and confirm that the distortion at the channel
1 and channel 2 output terminals is 1.0 % or less when 1800 W (with 8 Ω load) output is obtained for each terminal at
the same time.
2) Input the 1kHz sine wave to the channel 3 and channel 4 input terminals and confirm that the distortion at the channel
3 and channel 4 output terminals is 1.0 % or less when 1800 W (with 8 Ω load) output is obtained for each terminal at
the same time.
4-6. Maximum output
Perform the following test at each channel one by one.
Connect the 4 Ω 500 W resistor to output terminal.
Input the BURST signal as shown in fig. 2 to input terminal and adjust the input signal level so that a Vburst voltage of 317
Vp-p (volt peak to peak) is obtained at output terminal.
Measure the last wave of the BURST signal peak to peak by the oscilloscope’s MEASURE function. Confirm that the
measured voltage is 310 volt or more. (See fig. 2)
500 msec
Vburst
80
1 msec
20 msec
Close-up
The center of the emission line shall
be adopted as the measurement value.
Signal
Cursor
Fig. 2
The last one wave of burst signal
shall be measured.
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4-7. Channel separation
1) Ground the channel 2, channel 3 and channel 4 input terminals via a 600 Ω resistor.
Input the 1 kHz, 0 dBu sine wave to the channel 1 input terminal and measure the output voltage obtained at the
channel 1 output terminal as the reference voltage (0 dB).
Confirm that the output voltage at the channel 2, channel 3 and channel 4 output terminals is -65 dB or less as
compared with the reference voltage.
2) Ground the channel 1, channel 3 and channel 4 input terminals via a 600 Ω resistor.
Input the 1 kHz, 0 dBu sine wave to the channel 2 input terminal and measure the output voltage obtained at the
channel 2 output terminal as the reference voltage (0 dB).
Confirm that the output voltage at the channel 1, channel 3 and channel 4 output terminals is -65 dB or less as
compared with the reference voltage.
3) Ground the channel 1, channel 2 and channel 4 input terminals via a 600 Ω resistor.
Input the 1 kHz, 0 dBu sine wave to the channel 3 input terminal and measure the output voltage obtained at the
channel 3 output terminal as the reference voltage (0 dB).
Confirm that the output voltage at the channel 1, channel 2 and channel 4 output terminals is -65 dB or less as
compared with the reference voltage.
4) Ground the channel 1, channel 2 and channel 3 input terminals via a 600 Ω resistor.
Input the 1 kHz, 0 dBu sine wave to the channel 4 input terminal and measure the output voltage obtained at the
channel 4 output terminal as the reference voltage (0 dB).
Confirm that the output voltage at the channel 1, channel 2 and channel 3 output terminals is -65 dB or less as
compared with the reference voltage.
Note: Measure the output level with the 22 Hz-22 kHz band pass filter specified at 1-3.
NXAMP4x4
4-8. Output noise level
With each input terminal grounded via a 600 Ω resistor, measure the noise level at each output terminal and confirm that
the measured value is -56 dBu or less.
Note: Measure the noise level with the 22 Hz-22 kHz band pass filter specified at 1-3.
4-9. Stability
With no load resistors connected to all output terminals, input the 1 kHz, +2.0 dBu square wave to all input terminals and
measure the primary power consumption (Wno_load).
With the 0.1 uF capacitor connected to all output terminals, input the 1 kHz, +2.0 dBu square wave to all input terminals
and measure the primary power consumption (Wcap_load).
Confirm that the following equation is satisfied.
Wcap_load-Wno_load = 60 W or less
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NXAMP4x4
5. Inspection with BRIDGE mode
Condition:
• Perform each test item in this section with the bridge test mode of the test program. (See “TEST PROGRAM 4-16.
BRIDGE test”)
• Connect individually the 16 Ω load resistor to channel 1 and channel 3 output terminals.
• Keep the measurement reference of the measuring instrument in floating condition and connect it to the middle point of
each load resistor.
• Do not connect any resistor to channel 2 and channel 4 output terminals.
• The input terminals and output terminals of channel 2 and channel 4 are not used in this section.
5-1. Gain
Input the 1 kHz, 0 dBu sine wave to each input terminal and check that the output voltage obtained at each output terminal
is +34.1 ±1.2 dBu.
5-2. Frequency response
Perform the following test at each channel.
Input the 10 Hz, 1 kHz, 20 kHz, 0 dBu sine wave to the input terminal and one by one measure the output voltage obtained
at the output terminal for each frequency.
Confirm the output voltage at 10 Hz is 0 ±0.5 dB when compared with the output voltage at 1 kHz (0 dB).
Confirm the output voltage at 20 kHz is +0.5 ±0.5 dB when compared with the output voltage at 1 kHz (0 dB).
6. Confirming operation of NX-DFLT card
Turn off the power, and insert the NX-DFLT card into the expansion slot. Turn on the power, and confirm that an indicator (LED)
of the NX-DFLT card lights.
Turn off the power.
Note: Be sure to turn off the power before inserting the NX-DFLT card.
3) Double click the StandaloneJTAG_1_20, and the following install screen appears. (Fig. 1)
4) Click the [Finish] button to start installing the software for
update.
5) Click the [Next] and [Yes] buttons to finish installing.
6) Restart the PC after completing the installation.
1-2. Connection
Connect the USB port of the PC to the connector CN005
of the CONTROL circuit board with the USB-JTAG adaptor
(RLINK-ST).
Note:
When you connect the USB-JTAG adaptor (RLINK-ST) for
the first time, the USB driver will be required. The USB driver
is included in the downloaded file at previous step 1-1. Locate
and install the driver.
2. Updating operation
1) Turn on the power to this unit.
2) Start up the installed JTAG Programmer.
3) Select a new project from the project menu. The following “Create Project” screen appears. (Fig. 2)
4) Input the Project Name, Device Family and Device Name as the followings.
Project Name : an (any name may be used)
Device Family : uPSD3300
Device Name : uPSD3354DV-40U6
Fig. 1 Install screen
88
Fig. 2 Create Project screen
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NXAMP4x4
5) Click the [Create] button, and the following JTAG Programmer screen appears. (Fig. 3)
6) Click the [Browse] button and select the desired object file.
Check the [All] at Select region, and select Program/Verify at Select operation.
Note:
This operation is needed when you start up for the first time. Click the [Save] button of save or retrieve JTAG-ISP setup to
save the set up file so that this operation will not be required again.
Fig. 3 JTAG Programmer screen
7) Click the [HW Setup] button, and the following hardware setting screen appears. (Fig. 4)
8) Select the RLink at Hardware selection.
Note:
This operation is needed when you start up for the first time. Click the [Save] button of save or retrieve JTAG-ISP setup to
save the set up file so that this operation will not be required again.
Fig. 4 Hardware Setting screen
9) Click the [Execute] button, and the following JTAG-ISP Operations screen appears. (Fig. 5)
Fig. 5 JTAG-ISP Operations screen
10) Click the [Yes] button to start updating the firmware.
11) Restart the PC after the completion of the updating.
HEAT SINK UNIT L100
HEAT SINK UNIT L100
HEAT SINK UNIT L60
HEAT SINK UNIT L60
HEAT SINK UNIT L50
HEAT SINK UNIT L50
HEAT SINK UNIT OSH
HEAT SINK UNIT MP-5
HEAT SINK UNIT MP-5
ELECTRICAL PARTS
Components having special characteristics are marked and must be replaced with parts
having specification equal to those originally installed.
印の商品は、安全を維持するために重要な部品です。交換する場合は、安全のために必ず指定の部
品をご使用ください。
●
The numbers “QTY” show quantities for each unit.
●
The parts with “--” in “PART NO.” are not available as spare parts.
●
This mark “ } ” in the REMARKS column means these parts are interchangeable.
●
The second letter of the shaded ( ) part number is O, not zero.
●
The second letter of the shaded ( ) part number is I, not one.
●
部品価格ランクは、変更になることがあります。
●
QTY 欄に記されている数字は、各ユニット当たりの使用個数です。
●
PARTNO. が--の部品は、サービス用部品として準備されておりません。
●
REMARKS 欄の「}」マークの部品は、併用部品です。
●
網掛けの付いた PARTNO. の 2 番目の文字は「ゼロ」ではなく、「オー」です。
●
網掛けの付いた PARTNO. の 2 番目の文字は「イチ」ではなく、「アイ」です。
(注意)
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NXAMP4x4
■ OVERALL ASSEMBLY 1/2
800
800
790
800
CAUTION
The figure below shows the screw
marked [555] head shape.
To avoid the unit malfunction, make sure
the screw marked [555] head shape is
same as shown below before
assembling the OPT angle.