This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed
that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated.
WARNING :Failure to follow appropriate service and safety procedures when servicing this product may result in per-
IMPORTANT :This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-
The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and
service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable
and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to
exist, please contact the distributor’s Service Division.
WARNING :Static discharges can destroy expensive components. Discharge any static electricity your body may have
IMPORTANT :Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power
IMPORTANT NOTICE
sonal injury, destruction of expensive components and failure of the product to perform as specified. For
these reasons, we advise all Yamaha product owners that all service required should be performed by an
authorized Yamaha Retailer or the appointed service representative.
cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of
any form.
accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to
this bus.)
to the unit.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/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.
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 or coloured GREEN and YELLOW.
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.
* This applies only to products distributed by YAMAHA KEMBLE
MUSIC (U.K.) LTD.
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those
originally installed.
This product uses a lithium battery for memory back-up.
WARNING :Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following pre-
Leave lithium battery replacement to qualified service personnel.
Always replace with batteries of the same type.
When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells.
Never solder directly to the cells. Perform the soldering as quickly as possible.
Never reverse the battery polarities when installing.
Do not short the batteries.
Do not attempt to recharge these batteries.
Do not disasemble the batteries.
Never heat batteries or throw them into fire.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat og type. lever det brugte
batteri tilbage til leverandren.
VARNING
Explosionsfara vid felaktigt batteribyte.
Anvand samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren.
Kassera anvant batteri enligt fabrikantens instruktion.
VAROITUS
Paristo voi rajahtaa, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiiin.
Havita kaytetty paristo valmistajan ohjeiden mukaisesti.
The following information complies with Dutch official Gazette 1995. 45; ESSENTIALS OF ORDER ON THE COLLECTION OF BATTERIES.
• Please refer to the diassembly procedure for the removal of Back-up Battery.
• Leest u voor het verwijderen van de backup batterij deze beschrijving.
cautions when handling or replacing lithium batteries.
Maximum Voltage Gain74 dB CH INPUT (CH1–16) to OMNI OUT (STEREO, BUS, AUX)
Crosstalk
(@ 1 kHz)
Input Gain=Min.
AD Input (1–16)
Analog Input
(OMNI IN 1–4)
Option Input (SLOT 1–2)Available cardsOptional digital interface cards (MY16, MY8, MY4 series)
Digital Input
(2TR IN DIGITAL 1–2)
(一般仕様)
2
*
*
(総合仕様)
99
Internal
External
fs=48 kHz
fs=96 kHz
1
fs=48 kHz
fs=96 kHz
fs=48 kHz
fs=96 kHz
Input Gain=Max.
Input Pad =0 dB
Input Pad =0 dB
Input Sensitivity
=–60 dB
Phantom switch
Pad switch
Gain control
Peak indicator
Signal indicator
AD converter
AD converter
SRCOn/off (1:3 and 3:1 maximum input to output sample rate ratio)
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
Normal rate: 44.1 kHz–10% to 48 kHz+6%
Double rate: 88.2 kHz–10% to 96 kHz+6%
Less than 1.6 ms CH INPUT to OMNI OUT
Less than 0.8 ms CH INPUT to OMNI OUT
100 mm motorized with touch sense x 17
+10 to –138, –∞ dB (1024 steps/100 mm) input faders
0 to –138, –∞ dB (1024 steps/100 mm) master faders, stereo fader
Less than 0.05% 20 Hz to 20 kHz @ +14 dB into 600 Ω
Less than 0.01% 1 kHz @ +24 dB into 600 Ω
Less than 0.05% 20 Hz to 40 kHz @ +14 dB into 600 Ω
Less than 0.01% 1 kHz @ +24 dB into 600 Ω
20 Hz–20 kHz, 0.5, –1.5 dB @ +4 dB into 600 Ω
20 Hz–40 kHz, 0.5, –1.5 dB @ +4 dB into 600 Ω
110 dB typ. DA Converter (OMNI OUT)
106 dB typ. AD+DA (to OMNI OUT) @ fs=48 kHz
106 dB typ. AD+DA (to OMNI OUT) @ fs=96 kHz
–128 dB Equivalent Input Noise
–86 dB residual output noise. OMNI OUT (STEREO OUT off)
–86 dB (90 dB S/N) OMNI OUT
(STEREO fader at nominal level and all CH INPUT faders at minimum level)
–64 dB (68 dB S/N) OMNI OUT
(STEREO fader at nominal level and one CH INPUT fader at nominal level)
80 dB adjacent input channels (CH1–16)
80 dB input to output
+48 V DC
0/20 dB attenuation
44 dB (–60 to –16), detented
LED (red) turns on when post HA level reaches 3 dB below clipping at digital domain
LED (green) turns on when post HA level reaches 20 dB below nominal at
digital domain
sampling (@fs=44.1, 48 kHz)
Built-in microphone/AD IN 1–16/OMNI IN 1–4
—
0 to –96 dB (1 dB step)
—
Sine 100 Hz, sine 1 kHz, sine 10 kHz, 400 Hz/1 kHz, pink noise, burst noise
BUS1–8, AUX1–8, STEREO L, R
24-bit linear, 128-times oversampling
STEREO, BUS1–8, AUX1–8, SURROUND MONITOR, CONTROL ROOM,
DIRECT OUT 1–48, INSERT OUT (CH1–48, BUS1–8, AUX1–8, STEREO),
MONITOR MATRIX OUT, SOLO OUT, CASCADE OUT (BUS1–8, AUX 1–8,
STEREO, SOLO)
Net weight
Operating free-air temperature range
Storage temperature range
Supplied Accessories
Options
1. Total harmonic distortion is measured with a 6 dB/octave filter @ 80 kHz.
*
2. Hum & Noise are measured with a 6 dB/octave filter @ 12.7 kHz; equivalent to a 20 kHz filter with infinite dB/octave
*
attenuation.
3. See “Gate Parameters” on page 7.
*
4. See “Comp Parameters” on page 8.
*
5. See “EQ Parameters” on page 7.
*
EQ Parameters
Q
F
G
(EQパラメーター)
U.S./Canada
Other
LOW/HPFL-MIDH-MIDHIGH /LPF
0.1–10.0
(41 points)
low shelving
HPF
±18 dB
(0.1 dB step)
HPF: on/off
100 V, 50/60 Hz 135 W
120 V, 60 Hz 135 W
220–240 V, 50/60 Hz 135 W
200 x 585 x 436 mm (7.8" x 23.0" x 17.1")
With MB1000 and SP1000 installed: 295 x 635 x 486 mm (11.6" x 25.0" x
19.1")
20 kg (75 lbs)
10–35°C (50–95°F)
–20 to 60°C (–4 to 140°F)
AC Cable (3P/2P AC plug adapter), CD-ROM (Studio Manager),
Owner’s Manual, Studio Manager Installation Guide, Warranty card (J)
Digital interface card (MY16, MY8, MY4 series)
PEAK METER BRIDGE: MB1000
SIDE PANEL: SP1000
RACK MOUNT KIT: RK1
0.1–10.0
(41 points)
21.2 Hz–20 kHz (1/12 oct step)
±18 dB
(0.1 dB step)
0.1–10.0
(41 points)
high shelving
LPF
±18 dB
(0.1 dB step)
LPF: on/off
Gate Parameters
Threshold
Range
Attack
Gate
Ducking
Hold
Decay
Threshold
Range
Attack
Hold
Decay
(Gateパラメーター)
–54 dB to 0 dB (0.1 dB step)
–70 dB to 0 dB (1 dB step)
0 ms–120 ms (1 ms step)
0.02 ms–1.96 s (216 points) @ 48 kHz
0.02 ms–2.13 s (216 points) @ 44.1 kHz
0.01 ms–981 ms (216 points) @ 96 kHz
0.01 ms–1.06 s (216 points) @ 88.2 kHz
5 ms–42.3 s (160 points) @ 48 kHz
6 ms–46.0 s (160 points) @ 44.1 kHz
3 ms–21.1 s (160 points) @ 96 kHz
3 ms–23.0 s (160 points) @ 88.2 kHz
–54 dB to 0 dB (0.1 dB step)
–70 dB to 0 dB (1 dB step)
0 ms–120 ms (1 ms step)
0.02 ms–1.96 s (216 points) @ 48 kHz
0.02 ms–2.13 s (216 points) @ 44.1 kHz
0.01 ms–981 ms (216 points) @ 96 kHz
0.01 ms–1.06 s (216 points) @ 88.2 kHz
5 ms–42.3 s (160 points) @ 48 kHz
6 ms–46.0 s (160 points) @ 44.1 kHz
3 ms–21.1 s (160 points) @ 96 kHz
3 ms–23.0 s (160 points) @ 88.2 kHz
7
DM1000/MB1000/SP1000
Comp Parameters
Threshold
Ratio (x :1)
Out gain
Knee
Compressor
Expander
Compander H
Compander S
Attack
Release
Threshold
Ratio (x :1)
Out gain
Knee
Attack
Release
Threshold
Ratio (x :1)
Out gain
Width
Attack
Release
Threshold
Ratio (x :1)
Out gain
Width
Attack
Release
(Compパラメーター)
–54 dB to 0 dB (0.1 dB step)
x=1, 1.1, 1.3, 1.5, 1.7, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 20, ∞ (16 points)
0 dB to +18 dB (0.1 dB step)
Hard, 1, 2, 3, 4, 5 (6 step)
0 ms–120 ms (1 ms step)
5 ms–42.3 s (160 points) @ 48 kHz
6 ms–46.0 s (160 points) @ 44.1 kHz
3 ms–21.1 s (160 points) @ 96 kHz
3 ms–23.0 s (160 points) @ 88.2 kHz
–54 dB to 0 dB (0.1 dB step)
x=1, 1.1, 1.3, 1.5, 1.7, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 20, ∞ (16 points)
0 dB to +18 dB (0.1 dB step)
Hard, 1, 2, 3, 4, 5 (6 points)
0 ms–120 ms (1 ms step)
5 ms–42.3 s (160 points) @ 48 kHz
6 ms–46.0 s (160 points) @ 44.1 kHz
3 ms–21.1 s (160 points) @ 96 kHz
3 ms–23.0 s (160 points) @ 88.2 kHz
–54 dB to 0 dB (0.1 dB step)
x=1, 1.1, 1.3, 1.5, 1.7, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 20 (15 points)
–18 dB to 0 dB (0.1 dB step)
1 dB–90 dB (1 dB step)
0 ms–120 ms (1 ms step)
5 ms–42.3 s (160 points) @ 48 kHz
6 ms–46.0 s (160 points) @ 44.1 kHz
3 ms–21.1 s (160 points) @ 96 kHz
3 ms–23.0 s (160 points) @ 88.2 kHz
–54 dB to 0 dB (0.1 dB step)
x=1, 1.1, 1.3, 1.5, 1.7, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 20 (15 points)
–18 dB to 0 dB (0.1 dB step)
1 dB–90 dB (1 dB step)
0 ms–120 ms (1 ms step)
5 ms–42.3 s (160 points) @ 48 kHz
6 ms–46.0 s (160 points) @ 44.1 kHz
3 ms–21.1 s (160 points) @ 96 kHz
3 ms–23.0 s (160 points) @ 88.2 kHz
8
DM1000/MB1000/SP1000
(
)
Libraries
Effect library (EFFECT 1–4)
Compressor library
Gate library
EQ library
Channel library
Surround Monitor library
Input patch library
Output patch library
Bus to Stereo library
Analog Input Spec
INPUT 1–16
OMNI IN 1–4
(ライブラリー)
Presets52 (EFFECT 2–4: 44)
User memories76
Presets36
User memories92
Presets4
User memories124
Presets40
User memories160
Presets2
User memories127
Presets1
User memories32
Presets1
User memories32
Presets1
User memories32
Presets1
User memories32
(アナログ入力仕様)
InputPADGAIN
–60 dB
0
–16 dB
20
—10k Ω600 Ω Lines
1. Sensitivity is the lowest level that will produce an output of +4 dB (1.23 V) or the nominal output level when the unit
*
is set to maximum gain. (All faders and level controls are maximum position.)
2. XLR-3-31 type connectors are balanced (1=GND, 2=HOT, 3=COLD).
*
In these specifications, when dB represents a specific voltage, 0 dB is referenced to 0.775 Vrms.
All input AD converters (INPUT 1–16, OMNI INPUT 1–4, TALKBACK) are 24-bit linear, 128-times oversampling. (@fs=44.1,
48 kHz)
+48 V DC (phantom power) is supplied to CH INPUT (1–16) XLR type connectors via individual switches.
Actual Load
Impedance
3k Ω
For Use With
Nominal
50–600 Ω
Mics & 600 Ω
Lines
Sensitivity
–70 dB
(0.245 mV)
–26 dB
(38.8 mV)
–6 dB
(338 mV)
+4 dB
(1.23 V)
Input level
1
*
Nominal
–60 dB
(0.775 mV)
–16 dB
(0.123 V)
(1.23 V)
(1.23 V)
+4 dB
+4 dB
Max.
before clip
–40 dB
(7.75 mV)
+4 dB
(1.23 V)
+24 dB
(12.28 V)
+24 dB
(12.28 V)
XLR-3-31 type
(Balanced)
Connector
2
*
Analog Output Spec
Output
OMNI OUT 1–12150 Ω600 Ω Lines
PHONES100 Ω
1. XLR-3-32 type connectors are balanced (1=GND, 2=HOT, 3=COLD).
*
2. PHONES stereo phone jack is unbalanced (Tip=LEFT, Ring=RIGHT, Sleeve=GND).
*
In these specifications, when dB represents a specific voltage, 0 dB is referenced to 0.775 Vrms.
All output DA converters
(アナログ出力仕様)
Actual
Source
Impedance
OMINI OUT 1–12, PHONES) are 24-bit, 128-times oversampling. (@fs=44.1, 48 kHz
For Use With
Nominal
8 Ω Phones4 mW25 mW
40 Ω Phones
Output level
Nominal
+4 dB
(1.23 V)
12 mW75 mW
Max.
before clip
+24 dB
(12.28 V)
Connector
XLR-3-32 type (Balanced)
Stereo Phone Jack (TRS)
(Unbalanced)
2
1
*
9
DM1000/MB1000/SP1000
g
Digital Input Spec
InputFormatData lengthLevelConnector
2TR IN DIGITAL
1. XLR-3-31 type connectors are balanced (1=GND, 2=HOT, 3=COLD).
*
Digital Output Spec
OutputFormatData lengthLevelConnector
2TR OUT DIGITAL
1. Channel status of 2TR OUT DIGITAL 1
*
Type:linear PCM
Emphasis:NO
Sampling rate: depends on the internal configuration
2. Dither: word length 16/20/24 bit
*
3. XLR-3-32 type connectors are balanced (1=GND, 2=HOT, 3=COLD).
*
4. Channel status of 2TR OUT DIGITAL 2
*
Type:linear PCM
Category code: Digital signal mixer
Copy prohibit: NO
Emphasis:NO
Clock accuracy:Level II (1000 ppm)
Samplin
rate: depends on the internal configuration
(デジタル入力仕様)
1
2
(デジタル出力仕様)
1
2
AES/EBU24-bitRS422
IEC-6095824-bit0.5 Vpp/75 ΩPhono
1
AES/EBU
Professional use
IEC-60958
Consumer use
*
4
*
24-bit
24-bit
2
*
2
*
XLR-3-31 type (Balanced)
RS422
0.5V pp/75 Ω Phono
XLR-3-32 type
(Balanced)
3
*
1
*
10
DM1000/MB1000/SP1000
I/O Slot Spec (1-2)
(I/Oスロット(1〜2)仕様)
Each I/O SLOT accepts a digital interface card. SLOT #1 has a serial interface.
q ROUTING [DISPLAY] button
w ROUTING [1]–[8] buttons
e ROUTING [STEREO] button
r ROUTING [DIRECT] button
t EQUALIZER [DISPLAY] button
y EQUALIZER [HIGH] button
u EQUALIZER [HIGH-MID] button
i EQUALIZER [LOW-MID] button
o EQUALIZER [LOW] button
!0 EQUALIZER [Q] control
!1 EQUALIZER [FREQUENCY] control
!2 EQUALIZER [GAIN] control
!3 [GRAB] button
!4 Joystick
q [DISPLAY] button
w [SOLO] indicator
e [CLEAR] button
r [2TR D1] button
t [2TR D2] button
y [STEREO] button
u [SLOT] button
i [BUS] button
o [DIMMER] button
!0 [TALKBACK] button
!1 [MONITOR LEVEL] control
Power Section (p. 21)Digital I/O & Control Section (p. 21)SLOT Section (p. 21)
(電源セク ション)
AD Input and Output Section
16
4
OMNI
213
IN
(デジタルイン/アウト、コン トロールセ ク ション )
(アナログ入出力セクション)
INPUT
(スロ ットセクション)
2TR IN
DIGITAL
2
2
COAXIAL AES/EBUCOAXIALAES/EBU
1
234567811011121314159
1
2
134567811011129
20
q [INPUT] connectors 1-16
w [OMNI IN] connectors 1-4
e [OMNI OUT] connectors 1-12
(インプット端子 1〜16)
(オムニイン端子 1〜4)
(オムニアウト端子 1〜12)
DM1000/MB1000/SP1000
SLOT Section
(スロットセクション)
Digital I/O & Control Section
METER
CONTROL
q [METER] connector
w [CONTROL] connector
e [SMPTE TIME CODE INPUT] connector
r [REMOTE] connector
t [MIDI IN & OUT] ports
y [TO HOST USB] port
u [WORD CLOCK OUT] connector
i [WORD CLOCK IN] connector
o [2TR OUT DIGITAL AES/EBU 1] connector
!0 [2TR OUT DIGITAL COAXIAL 2] connector
!1 [2TR IN DIGITAL AES/EBU 1] connector
!2 [2TR IN DIGITAL COAXIAL 2] connector
After replacing the circuit boar d or fader of FD , please
calibrate the faders. (See page 150.)
Disassembling the DM1000
1.Removing the SP1000
(Time required: About 2 minutes)
1-1.If the SP1000 is attached to the DM1000, remove
the ten (10) screws marked [A], and then both sides
must be removed. (Fig.1)
SP1000
(MB side pad)
注意:作業中は指を挟まない様に注意してください。
※FDシート又はフェーダーを交換後は、フェーダーのキャ
リブレーションを実施してください。(150ページ参照)
DM1000 の分解
1.SP1000の取り外し
1-1.DM1000にSP1000が取り付けられている場合は、
[A]のネジ10本を外して、左右共に取り外します。
(図 1)
DM1000
SP1000
(Side pad)
[A]
(所要時間:約 2分)
[A]: Bind Head ScrewPW 4.0X20 MFZN2BL (VA314000)
2.Removing the MB1000
(Time required: About 1 minute)
2-1.Remove the two (2) screws marked [B] and loosen
the two (2) screws marked [C]. The MB1000 can
then be removed from the DM1000. (Photo.1, 2)
[B]: Bind Head ScrewA4.0X12 MFZN2BL (VP156900)
[C]: Bind Head ScrewA4.0X12 MFZN2BL (VP156900)
Photo.1Photo.2
(写真1)
3.Control Panel Assembly
(Time required: About 7 minutes)
3-1.Remove the SP1000. (See procedure 1.)
3-2.Remove the MB1000. (See procedure 2.)
3-3.Remove the twenty (20) screws marked [60A]. (Fig.2)
3-4.Lift the control panel assembly from the rear side
and fasten them by the stay. (Photo.3-1)
When assembling the control panel assembly
with the bottom assembly, put the screws of
the front side → right side panel side → left
4-1.Remove the SP1000. (See procedure 1.)
4-2.Remove the MB1000. (See procedure 2.)
4-3.Fasten the control panel assembly . (See procedure 3.)
4-4.Remove the six (6) screws marked [40A] and the
two (2) screws marked [70A]. Fasten the rear
assembly U by the stay. (Fig.2, Photo.3-2)
4-5.Remove the two (2) screws mark ed [40B]. The rear
[40]: Bind Head Tapping Screw-B4.0X8 MFZN2BL (EG340190)
[60A]: Bind Head Tapping Screw-B4.0X8 MFZN2BL (EG340190)
[70A]: Bind Head Tapping Screw-B3.0X6 MFZN2BL (EP600230)
<Rear view>
[60A]
[60A]
[40A]
(+バインドBタイト)
(+バインドBタイト)
(+バインドBタイト)
<Right side view>
[40A]
Control panel assembly
(コンパネAss'y)
[60A]
Rear assembly U
(リア上Ass'y)
Bottom assembly
(ボトムAss'y)
[70A]
[40B]
Side panel R
(サイドパネルR
Fig.2
(図2)
29
DM1000/MB1000/SP1000
Bottom Assembly Section
5.DCD Circuit Board
(Time required: About 8 minutes)
5-1.Remove the SP1000. (See procedure 1.)
5-2.Remove the MB1000. (See procedure 2.)
5-3.Fasten the control panel assembly. (See procedure 3.)
5-4.Remove the four (4) screws marked [410] and the
two (2) screws marked [411]. The DCD circuit board
can then be removed. (Fig.3, Photo.4)
When removing the circuit board, if it is hard
to handle while the control panel assembly is
fixed slantwise at the stay, open it widely at
180° for the work.
6.DCA 1/5 Circuit Board
(Time required: About 12 minutes)
6-1.Remove the SP1000. (See procedure 1.)
6-2.Remove the MB1000. (See procedure 2.)
6-3.Fasten the control panel assembly. (See procedure 3.)
6-4.Remove the rear assembly U. (See procedure 4-5.)
6-5.Remove the five (5) screws marked [340] and the
four (4) screws marked [341]. The DCA 1/5 circuit
board can then be removed. (Fig.3, Photo.5)
7-1.Remove the SP1000. (See procedure 1.)
7-2.Remove the MB1000. (See procedure 2.)
7-3.Fasten the control panel assembly. (See procedure 3.)
7-4.Fasten the rear assembly U. (See procedure 4-4.)
7-5.Remove the screw marked [335]. The DCA 2/5 circuit
board can then be removed. (Fig.3, Photo.6)
The DCA 3/5 and 4/5 circuit boards can be
removed in the same manner.
8.OPT Circuit Board
(Time required: About 11 minutes)
8-1.Remove the SP1000. (See procedure 1.)
8-2.Remove the MB1000. (See procedure 2.)
8-3.Fasten the control panel assembly. (See procedure 3.)
8-4.Fasten the rear assembly U. (See procedure 4-4.)
8-5.Remove the four (4) screws marked [110A]. The IF
plate can then be removed. (Fig.3)
8-6.Remove the three (3) screws marked [12A] and the
two (2) screws marked [12B]. The bottom stay, the
OPT angle and the OPT circuit board can then be
removed. (Fig.3)
8-7.Remove the four (4) screws marked [230]. The OPT
circuit board can then be removed from the OPT
angle. (Photo.7)