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SERVICE MANUAL
EMX68S
EMX88S · OPTION RK-88 RACK MOUNT KIT
This document is printed on chlorine free (ECF) paper with soy ink.
CONTENTS SPECIFICATIONS .............................................................................. 3 PANEL LAYOUT .................................................................................. 7 CIRCUIT BOARD LAYOUT & WIRING .......................................................................................................... 10 DIMENSIONS .................................................................................... 11 BLOCK & LEVEL DIAGRAM ............................................................. 12 DISASSEMBLY PROCEDURE ......................................................... 14 LSI PIN DESCRIPTION .................................................................... 20 IC BLOCK DIAGRAM ........................................................................ 22 CIRCUIT BOARDS ........................................................................... 23 INSPECTION .................................................................................... 37 OVERALL CIRCUIT DIAGRAM PARTS LIST
PA
011625
HAMAMATSU, JAPAN
1,387K-7041 Printed in Japan 2002.03
EMX68S 20020325-92000 EMX88S 20020325-105000 RK88 20020325-2500
EMX68S / EMX88S
IMPORTANT NOTICE
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 personal injury, destruction of expensive components and failure of the product to per form 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. This presentation or sale of this manual to any individual or firm does not constitute authorization, certification, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.
IMPORTANT:
The data provided is believed 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, therefor, 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: IMPORTANT:
Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss). Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power 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.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed.
WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT: The wires in this main 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 main lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The GREEN-and-YELLOW wire must be connected to the terminal in the plug that is marked with the letter E or the safety earth symbol (or coloured GREEN or GREEN-and-YELLOW). The BLUE wire must be connected to the terminal that is marked with the letter N (or coloured BLACK). The BROWN wire must be connected to the terminal that is marked with the letter L (or coloured RED). This applies only to products distributed by Yamaha Kemble Music (U. K.) Ltd.
2
EMX68S / EMX88S
SPECIFICATIONS
G General specifications
Maximum output power Frequency response Total harmonic distortion MAIN L, R: 400 W+400 W/4 @0.5% THD at 1 kHz, 270 W+270 W/8 @0.5% THD at 1 kHz MAIN BRIDGE: 800 W/8 @0.5% THD at 1 kHz 20 Hz20 kHz +1 dB, 3 dB @1 W output into 8 (SPEAKERS OUT) 20 Hz20 kHz +1 dB, 3 dB @+4 dB output into 10 k (MAIN OUT, MONITOR OUT, EFFECT OUT) Less than 0.5% @20 Hz20 kHz, 200 W output into 4 (SPEAKERS OUT) Less than 0.3% @20 Hz20 kHz, +14 dB output into 10 k (MAIN OUT, MONITOR OUT, EFFECT OUT) 124 dB equivalent input noise, 65 dB residual output noise (SPEAKERS OUT) 88 dB residual output noise (MAIN OUT, MONITOR OUT) Hum & noise (Average, Rs=150) (with 20 Hz20 kHz BPF) 79 dB (MAIN OUT) 75 dB (MONITOR OUT) 69 dB (MAIN OUT) 84 dB (EFFECT OUT) 64 dB (EFFECT OUT) Master level control: nominal level, All channel level controls: minimum Master level control: nominal level, All channel level controls: minimum Master level control: nominal level, 1 channel level control: nominal level All channel level controls: minimum 1 channel level control: nominal level
Maximum voltage gain
86 dB CH IN (Lo-Z) to SPEAKERS OUT 66 dB CH IN (Lo-Z) to MAIN OUT, MONITOR OUT 66 dB CH IN (Lo-Z) to EFFECT OUT 48 dB CH IN (Lo-Z) to REC OUT 56 dB CH IN (Hi-Z) to MAIN OUT, MONITOR OUT 46 dB CH IN (Super Hi-Z) to MAIN OUT 26 dB AUX IN to MAIN OUT 24 dB 2TR IN to MAIN OUT 66 dB MIC IN to MAIN OUT 26 dB LINE IN to MAIN OUT 65 dB adjacent input, 65 dB input to output ±15 dB Maximum HIGH 10 kHz shelving MID 2.5 kHz peaking LOW 100 Hz shelving * Turn over/roll-off frequency of shelving: 3 dB below maximum variable level. 5 POINTS LED METER (MAIN OUT L/R, MONITOR OUT) 7 bands (125, 250, 500, 1k, 2k, 4k, 8k Hz) ±12 dB Maximum (MAIN OUT, MONITOR OUT) 16 programs, parameter control, tap delay control +15 V (balanced input) Comp. : THD0.5% (SPEAKERS OUT) Turns on. : THD0.5% (SPEAKERS OUT) POWER switch on/off mute, DC detection, TEMP (heatsink temp. 90°C) stop -- low speed (50°C) -- variable -- high speed (70°C) DIGITAL EFFECT MUTE : on/off, Tap delay RK-88, FC5 USA and Canada Europe Other 482 x 305 x 328 mm 15.5 kg AC power cord, Owner's Manual 120 V AC 60 Hz/300W 230 V AC 50 Hz/350W 240 V AC 50 Hz/350W
Crosstalk at 1 kHz
Input channel equalization
Meters Graphic equalizer Internal digital effect Phantom power Limiter LIMIT indicators Protection circuit (Power amp) Fan circuit Foot switch (FC5) Optional accessories Power requirement/ Power consumption Dimensions (WxHxD) Weight Supplied accessories
3
EMX68S / EMX88S
G Input specificaitons
Input level Input connectors Actual load PAD impedance Nominal impedance Sensitivity*1 Nominal level 50 dB (2.45 mV) 20 dB (77.5 mV) 40 dB (7.75 mV) 10 dB (245 mV) 30 dB (24.5 mV) 0 dB (775 mV) 50 dB (2.45 mV) 10 dB (245 mV) 10 dB (245 mV) Max. before clipping Connector type
CH INPUT (Low-Z) (CH14/16) CH INPUT (Hi-Z) (CH12/14) CH INPUT (Super Hi-Z) (CH34/56) MIC INPUT LINE INPUT (L, R) AUX IN (L, R) 2TR IN (L, R)
OFF 3 k ON OFF 10 k ON OFF 470 k ON 3 k 10 k 10 k 10 k
50600 Mics 62 dB (0.616 mV) 600 Lines 50600 Mics 600 Lines 1k 12 dB (195 mV) 50600 Mics 62 dB (0.616 mV) 600 Line 600 Line 600 Line 22 dB (61.6 mV) 22 dB (61.6 mV) 32 dB (19.5 mV) 52 dB (1.95 mV) 22 dB (61.6 mV) 42 dB (6.16 mV)
20 dB (77.5 mV) XLR-3-31 +10 dB (2.45 V) 10 dB (245 mV) +20 dB (7.75 V) 0 dB (775 mV) Phone jack*3 +10 dB (3.16 V) 20 dB (77.5 mV) XLR-3-31 type*2 +20 dB (7.75 V) +20 dB (7.75 V) Phone jack*3 Phone jack*3 type*2 Phone jack (TRS)*2
22 dBV (79.4 mV) 10 dBV (316 mV) +17.8 dBV (7.76 V) Phono jack
*1. Sensitivity is the lowest level that can produce an output of +4 dB (1.23 V) or the nominal output level when the unit is set at maximum gain. (All level controls are at maximum position.) *2. Balanced. *3. Unbalanced. · 0 dB=0.775 Vrms, 0 dBV=1 Vrms.
G Output specificaitons
Output connectors Actual source impedance 0.1 0.1 600 600 600 600 Nominal impedance 4/8 Speaker 8 Speaker 10 k Lines 10 k Lines 10 k Lines 10 k Lines Output level Nominal 80 W/4 160 W/8 +4 dB (1.23 V) +4 dB (1.23 V) +4 dB (1.23 V) 10 dBV (316 mV)
Max. before clipping
Connector type Phone jack Phone jack Phone jack Phone jack Phone jack Phono jack
A, B (1, 2) SPEAKERS OUT BRIDGE MAIN OUT (L, R) EFFECT OUT MONITOR OUT REC OUT (L, R) · All output jacks are unbalanced. · 0 dB=0.775 Vrms, 0 dBV=1 Vrms.
(400 W/4) (800 W/8) +20 dB (7.75 V) +20 dB (7.75 V) +20 dB (7.75 V) +10 dBV (3.16 V)
4
EMX68S / EMX88S
5
EMX68S / EMX88S
6
EMX68S / EMX88S
PANEL LAYOUT
G CONTROL PANEL 1. CONTROL SECTION · Channel Control Equalizer (HIGH, MID, LOW) MONITOR control EFFECT control PAN control (EMX-68S/CH1-4, EMX-88S/CH1-6) BAL/PAN control (EMX-68S/CH5-6, EMX-88S/CH7-8) LEVEL control PAD switch (EMX-68S/CH1-4, EMX-88S/CH1-6)
· Digital Effect PROGRAM selector PARAMETER control ON switch TAP switch
7
EMX68S / EMX88S
· MAIN Graphic Equalizer EFFECT RTN control AUX IN control 2TR IN control MASTER control Peak Level Indicator
· MONITOR Graphic Equalizer EFFECT RTN control 2TR IN control MASTER control Peak Level Indicator
21
21
· PHANTOM switch, indicator
22
PHANTOM ON/OFF switch
22
· POWER AMP
23 24
LIMITER indicator Power Amp select switch
23
24
· YAMAHA SPEAKER PROCESSING
25 ON/OFF switch
25 8
EMX68S / EMX88S
· STAND-BY
· POWER switch, indicator
27
26
ON/OFF switch
POWER ON/OFF switch, indicator
26
27
2. INPUT/OUTPUT SECTION
INPUT terminal (Low-Z) (EMX-68S/CH1-4, EMX-88S/CH1-6) INPUT terminal (Hi-Z) (EMX-68S/CH1-2, EMX-88S/CH1-4) INPUT terminal (Super Hi-Z) (EMX-68S/CH3-4, EMX-88S/CH5-6) INPUT terminal (MIC, LINE) (EMX-68S/CH5-6, EMX-88S/CH7-8) EFFECT OUT terminal FOOT SW terminal INPUT TO MAIN terminal (AUX IN, 2TR IN) OUTPUT terminal (REC OUT, MAIN(STEREO), MONITOR) G REAR PANEL SPEAKERS terminal AC IN socket
9
EMX68S / EMX88S
CIRCUIT BOARD LAYOUT & WIRING
PWR 1/4
PWR 2/4
PWR 3/4
Power Transformer
PWR 4/4
MIX88 MIX68
DSP
CN101
CN105
DC Fan 2P
15P
PWR 1/4
CN106
6P
1
3
AC INLET CN104 3P
Location 1 2 3 4
Connector Assembly MIX68/88-PWR1/4 MIX68/88-DSP PWR1/4-PWR2/4 PWR3/4-PWR4/4
Remarks Parts No. 24185&2426 15P L=700 V842620 100mm P=1.25 MF12710 B&B4P (V827270) PSW V827290
PWR 2/4
PWR 3/4
Power Transformer
4
3P CN107
PWR 4/4
POWER ON/OFF
15P CN903
CN901
MIX68
2
CN101
MIX88
27P
27P
DSP
10
EMX68S / EMX88S
DIMENSIONS
G Front View G Side View
481.5mm
305mm
327.6mm
G Front View with Rack Mount Adaptor
62mm
448.5mm
11
EMX68S / EMX88S
BLOCK & LEVEL DIAGRAM
A
EMX-68S/88S: SW906
MIX68 MIX88
EMX-68S:IC101 EMX-88S:IC101,301
6 5 7
Low-Z CH INPUT EMX-68S [CH1,2] EMX-88S [CH1-4] Hi-Z
1 3 2 3 4 1
2
EMX-68S/88S: IC102
EMX-68S:IC103 EMX-88S:IC103,303
5 7
EMX-68S/88S: IC920
2 1 6 7
EMX-68S/88S: IC903
6 7
EM
Low-Z CH INPUT EMX-68S [CH3,4] EMX-88S [CH5,6]
EMX-68S/88S: IC502 1 3 2
5
EMX-68S/88S: IC503
5 7
2
6 5 7
EMX-68S/88S: IC504
5
EMX-68S/88S:IC505
7
EMX-68S/88S: IC920
7 2
EMX-68S/88S: IC921
6 1 7
EMX-68S/88S: IC903
2 1
Super Hi-Z
3 4 1
EMX-68S/88S:IC501
EMX-68S/88S: IC921 2 EMX-68S/88S:IC704
6 5 7 5 7
EM
MIC CH INPUT EMX-68S [CH5,6] EMX-88S [CH7,8]
L/MONO
1 2 3
EMX-68S/88S: IC701,801
EMX-68S/88S: IC702,802
EMX-68S/88S:IC703,803
5 7
3 4 1
LINE
2
EMX-68S/88S: IC701,801
3 1 3 1
R
3 4 1
EMX-68S/88S: IC702,802
EMX-68S/88S:IC703,803
2
EMX-68S/88S:IC901
2 1 2
EMX-68S/88S: IC922
6 1 7 6
EMX-68S/88S: IC904
7
L/MONO
3 4 1 2
EM
AUX IN
R
EMX-68S/88S:IC901
6 7
3 4 1
EMX-68S/88S: IC922
INPUT TO MAIN
L
2TR IN
R
EMX-68S/88S:IC902
2 1
5
7
EMX-68S/88S:IC902 EMX-68S/88S:EN901 21-24
DSP
12-15 20 16
29
8
CN901-27PIN
28 27 18,19 20,21
9 10
EMX-68S/88S: IC923
2 1 6 7 2 1
EMX-68S/88S:VR905 2 13
EMX-68S/88S: IC923
EMX-68S/88S:IC
CN901-27PIN
CN101-27PIN
23 22
EFFECT ON/OFF
3 4 1 2 14
FOOT SW
TAP
3 4 1
A'
12
EMX68S / EMX88S
A
EMX-68S/88S:IC911
8 1,2,3,4,7
EMX-68S/88S:IC912
8
EMX-68S/88S: IC920
2 1 6 7
EMX-68S/88S: IC903
6 7
1,2,3,4,7
EMX-68S/88S:IC914 EMX-68S/88S:IC905,906
5 7
2 3 4 1
PWR 2/4
MAIN L SPEAKERS
MX-68S/88S: C920
PWR 1/4
2 EMX-68S/88S: IC921
2 1 6 7
1
EMX-68S/88S: IC903
2 1 3 1
3 4 1
MAIN R
W101RE1 W101RE2
A
2
EMX-68S/88S:IC917,918
MX-68S/88S: C921
EMX-68S/88S:IC907,908 EMX-68S/88S:IC914
PA
CN903-15PIN CN101-15PIN
EMX-68S/88S:IC915
5 7 3 1
+
+
REC OUT
BRIDGE
EMX-68S/88S:IC915
EMX-68S/88S: IC917,918
W101BE1
W101BE2
PA
EMX-68S/88S:SW904
+
+
1
B
EMX-68S/88S: IC922
2 1 6 7 6 7
EMX-68S/88S: IC904
EMX-68S/88S:SW905 EMX-68S/88S:IC909,910
5 7
2
2 3 4 1
MONITOR
EMX-68S/88S: C922
EMX-68S/88S:IC916
EMX-68S/88S:IC913
8 1,2,3,4,7
EMX-68S/88S: IC923
2 1 6 7 2 1 3 1
2 3 4 1
EMX-68S/88S: C923
EMX-68S/88S:IC904
EMX-68S/88S:IC916
EFFECT OUT
38CA1-8822109 1
A'
13
EMX68S / EMX88S
DISASSEMBLY PROCEDURE
1. 1-1. 1-2. 1-3. Front Panel Assembly (Time required: about 3 min) Remove the seven (7) screws marked [80] and the screw marked [90]. (Fig.1) Hold volume knobs and pull the front panel forward. (Fig.1) Remove the screw marked [100]. The front panel assembly can then be removed. (Fig.1)
Body Assembly
Front Panel Assembly
[80]
[90] [100] [80]
(Fig. 1)
[80]: Bind Head Screw 4.0X12 MFZN2BL (VB132700) [90]: Bind Head Screw 4.0X20 MFZN2BL (VB403600) [100]: Bind Head Screw A4.0X8 MFZN2BL (VP156800)
2. 2-1. 2-2. 2-3.
DSP-SPX1 Circuit Board (Time required: about 4 min) Remove the front panel assembly. (See Procedure 1) Remove the two (2) screws marked [170] to remove the shield case. (Fig.2) Remove the four (4) screws marked [140]. The DSP-SPX1 circuit board can then be removed. (Fig.2)
[250] [270] [140]
DSP
[170] [140]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) [170]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) [250]: Cord Binder TS-0708 KSS (VZ765100) [270]: Cable Cramp AB-3S-3M NYLON66 (V9078900)
(Fig. 2)
[140]
14
EMX68S / EMX88S
3.
3-1. 3-2. 3-3. 3-4. 3-5.
MIX68 Circuit Board (EMX68S) (Time required: about 18 min) MIX88 Circuit Board (EMX88S) (Time required: about 20 min) Remove the front panel assembly. (See Procedure 1) Remove the cable from the cord binder marked [250]. (Fig.2) Remove the shield case. (See Procedure 2-2) Pull out the connector assembly from CN101 on the DSP-SPX1 circuit board. (Fig.4) Remove the six (6) screws marked [240] to remove the shield plate. (Fig.3)
Pull
Top View
[240]
DSP
(Fig. 4) 3-6. EMX68S: Remove the fifteen (15) screws marked [40], and the thirteen (13) screws marked [41], and the sixteen (16) hexagonal nuts marked [A]. (Fig.5) EMX88S: Remove the fifteen (15) screws marked [40], and the seventeen (17) screws marked [41], and the eighteen (18) hexagonal nuts marked [A]. (Fig.5) EMX68S: Remove the eighteen (18) knobs marked [50], the nine (9) knobs marked [60], the nine (9) knobs marked [70], six (6) knobs marked [80], and the nine (9) knobs marked [90]. The mix68 circuit board can then be removed. (Fig.5) EMX88S: Remove the twenty-four (24) knobs marked [50], the eleven (11) knobs marked [60], the eleven (11) knobs marked [70], eight (8) knobs marked [80], and the eleven (11) knobs marked [90]. The mix88 circuit board can then be removed. (Fig.5) Note: When placing the front panel assembly on the table, take care not to weight the PWR circuit board 4/4. (Fig.6)
Bottom View
(Fig. 3)
[240]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
3-7.
15
EMX68S / EMX88S
EMX68S
[50] [40] [70] [60] [80] [90] [40] [90] [60] [40] [70] [90] [40] [70] [60] [80] [90] [40] [40] [40]
EMX88S
[50] [90] [40] [60] [70] [90] [40] [40]
[41]
[A]
[41] [A]
[41]
[A]
[41] [A]
(Fig. 5)
[40]: Screw X25 MFZNBL (V3289800) [41]: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) [50]: Knob GREEN/M-GRAY (V6225300) [60]: Knob L-GRAY/M-GRAY (V6225600) [70]: Knob BLUE/M-GRAY (V6225400) [80]: Knob RED/M-GRAY (V6225500) [90]: Knob L-GRAY/D-GRAY (V6225700)
(Fig. 6) 4. 4-1. 4-2. PWR Circuit Board 4/4 (Time required: about 4 min) Remove the front panel assembly. (See Procedure 1) Pinch slightly the stopper of the power switch escutcheon with a plyer, pull it to the front to remove. (Fig.7-1) Remove the two (2) screws marked [100]. (Fig.7-2) Remove the power switch knob marked [120]. The PWR circuit board 4/4 can then be removed. (Fig.7-2)
4-3. 4-4.
[100]
[120]
(Fig. 7-1)
(Fig. 7-2)
[100]: Bind Head Screw 3.0X8 MFZN2BL (VB659000) [120]: Power Switch Knob MX12/4 (VU859000)
16
EMX68S / EMX88S
5. 5-1. 5-2. 5-3.
Rear Panel Assembly (Time required: about 5 min) Remove the front panel assembly. (See Procedure 1) Remove the eight (8) screws marked [60] and the two (2) screws marked [44]. (Fig.8) Hold the cord holder and pull the rear panel forward to remove. (Fig.9)
[60]
[130] [C]
[150b]
[140] [44]
[60]
[150a]
[44]
(Fig. 9)
(Fig. 8)
[44]: Bind Head Tapping Screw-B 4.0X8 MFZN2BL (EG340190) [60]: Bind Head Screw 4.0X12 MFZN2BL (VB132700) [130]: Bind Head Screw 4.0X30 MFZN2BL (VT229100) [140]: Bind Head Tapping Screw-B 3.0X12 MFZN2BL (VQ074600) [150]: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300)
Note: When reinstalling, install the rear panel assembly and the front panel assembly in that order to connect the PSW connector easily. 6. 6-1. 6-2. PWR Circuit Board 2/4 (Time required: about 7 min) Remove the rear panel assembly. (See Procedure 5) Remove the screw marked [150a] and the five (5) hexagonal nuts marked [C]. The PWR circuit board 2/4 can then be removed. (Fig.8) PWR Circuit Board 3/4 (Time required: about 6 min) Remove the rear panel assembly. (See Procedure 5) Remove the two (2) screws marked [140] and the screw marked [150b]. (Fig.8) Remove the screw marked [240]. The PWR circuit board 3/4 can then be removed. (Fig.10)
7. 7-1. 7-2. 7-3.
Rear Panel Assembly
[240]
(Fig. 10)
[240]: Bind Head Screw A4.0X8 MFZN2BL (VP156800)
17
EMX68S / EMX88S
8. 8-1. 8-2. 8-3. 8-4.
8-5.
PWR Circuit Board 1/4 (Time required: about 13 min) Remove the rear panel assembly. (See Procedure 5) Remove the PWR circuit board 2/4. (See Procedure 6) Remove the PWR circuit board 3/4. (See Procedure 7) Remove the sixteen (16) screws marked [90] to remove the TR holder A and the TR holder B. (Fig.11) Remove the six (6) screws marked [40]. The PWR circuit board 1/4 can then be removed. (Fig.12) Bottom Side View [90]
[40] Rear Panel
Upper Side View [90]
PWR 1/4
PWR 1/4 (Fig. 12) (Fig. 11)
[40]: Bind Head Screw SP 3.0X8 MFZN2Y (EG330290)
[90]: Bind Head Tapping Screw-B 3.0X12 MFZN2BL (VQ074600)
9. 9-1. 9-2.
Fan (Time required: about 6 min) Remove the rear panel assembly. (See Procedure 5) Remove the two (2) screws marked [130]. The fan can then be removed. (Fig.8)
10. Power Transformer (Time required: about 4 min) 10-1. Remove the front panel assembly. (See Procedure 1) 10-2. Remove the bolt marked [D]. The power transformer can then be removed. (Fig.13) Note: When reinstalling the power transformer, make sure to lead the cables to the direction shown in Fig.14. Leading them to unfit direction may cause hum noise on the system.
Power Transformer [D]
Direction to lead the cables
Power Transformer
FRONT VIEW
FRONT VIEW
18
(Fig. 13)
(Fig. 14)
EMX68S / EMX88S
11. Front Frame (Time required: about 6 min) 11-1. Remove the front panel assembly. (See Procedure 1) 11-2. Remove the four (4) screws marked [50] to remove the handle assembly. (Fig.15) 11-3. Remove the ten (10) screws marked [40]. The front frame can then be removed. (Fig.16)
Assemb Body Assembly
Handle [50] [50]
(Fig. 15)
[50]: Bind Head Screw 4.0X16 MFZN2BL (EG340110)
Body Assembly
[40]
[40]
[40]
[40]
(Fig. 16)
[40]: Bind Head Tapping Screw-P 4.0X30 MFZN2BL (V8322700)
19
EMX68S / EMX88S
LSI PIN DESCRIPTION
G M30622MCA-XXXFP (X2416A00) CPU
PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 DSP: IC109 PIN NO. 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
NAME
P96/ P95/ P94/ P93/ P92/ P91/ P90/ BYTE CN Vss P87/X CIN P86/X COUT RESET X OUT Vss X IN Vcc P85/NMI P84/INT2 P83/INT1 P82/INT0 P81/TA4IN/U P80/TA4OUT/U P77/TA3IN P76/TA3OUT P75/TA2IN/W P74/TA2OUT/W P73/ TA1IN/V P72/CLK2/TA1OUT P71/RXD2 P70/TXD2 P67/TXD1 P66/RXD1 P65/CLK1 P64/ RTS1 P63/TXD0 P62/RXD0 P61/CLK0 P60/CTS0/RTS0 P57/RDY/CLKOUT P56/ALE
I/O
I/O I/O I/O I/O I/O I/O I/O I I I/O I/O I O I I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O
FUNCTION
NAME
P55/HOLD P54/HLDA P53/BCLK P52/RD P51/WRH/BHE P50/WRL/WR P47/CS3 P46/CS2 P45/ CS1 P44/CS0 P43/A19 P42/A18 P41/A17 P40/A16 P37/A15 P36/A14 P35/A13 P34/A12 P33/A11 P32/A10 P31/A9 Vcc P30/A8(/-/D7) Vss P27/A7(D7/D6) P26/A6(/D6/D5) P25/A5(/D5/D4) P24/A4(/D4/D3) P23/A3(/D3/D2) P22/A2(/D2/D1) P21/A1(/D1/D0) P20/A0(/D0/-) P17/D15/INT5 P16/D14/INT4 P15/D13/INT3 P14/D12 P13/D11 P12/D10 P11/D9 P10/D8
I/O
I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O
FUNCTION
CMOS 8Bit Input Output Port CMOS 8Bit Input Output Port CMOS 8Bit Input Output Port CMOS 8Bit Input Output Port CMOS 8Bit Input Output Port CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port
BASS change Terminal Change Processor Mode CMOS 8Bit Input Output Port CMOS 8Bit Input Output Port Reset Input Main Clock Output Ground Main Clock Input Power Supply Input Only CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port
CMOS 8Bit Input Output Port CMOS 8Bit Input Output Port
G YM3436DK (XG948E00) DIR2 (Digital Format Interface)
PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
DSP: IC103
NAME
DAUX HDLT DOUT VFL OPT SYNC MCC WC MCB MCA SKSY XI XO P256 LOCK Vss TC DIM1 DIM0 DOM1 DOM0 KM1
I/O
I O O O O O O O O O I I O O O O I I I I I
PIN NO. Auxiliary input for audio data 23 Asynchronous buffer operation flag 24 Audio data output 25 Parity flag output 26 Fs x 1 Synchronous output signal for DAC 27 Fs x 1 Synchronous output signal for DSP 28 Fs x 64 Bit clock output 29 Fs x 1 Word clock output 30 Fs x 128 Bit clock output 31 Fs x 256 Bit clock output 32 Clock Synchronous control input 33 Crystal oscillator connection or external clock input 34 Crystal oscillator connector 35 VCO oscillating clock connection 36 PLL lock flag 37 Logic section power 38 PLL time constant switching output 39 Data input mode selection 40 Data input mode selection 41 Data output mode selection 42 Data output mode selection 43 Clock mode switching input 1 44
FUNCTION
NAME
RSTN Vdda CTLN PCO ( NC ) CTLP Vssa TSTN KM2 KMO FS1 FS0 CSM EXTW DDIN LR Vdd ERR EMP CD0 CCK CLD
I/O
I I O I I I I O O I I I O O O O I I
FUNCTION
System reset input VCO section power (+5V) VCO control input N PLL phase comparison output VCO control input P VCO section power (GND) Test terminal. Open for normal use Clock mode switching input 2 Clock mode switching input 0 Channel status sampling frequency display output 1 Channel status sampling frequency display output 0 Channel status output method selection External synchronous auxiliary input word clock EIAJ (AES/EBU) data input PLL word clock output Logic section power (+5V) Data error flag output Channel status emphasis control code output 3-wire type microcomputer interface data output 3-wire type microcomputer interface clock input 3-wire type microcomputer interface load input
20
EMX68S / EMX88S
G YSS910-S (XV988A00) DSP6 (Digital Signal Processor)
PIN NO.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88
DPS: IC112
NAME
Vdd Vss XI XO Vdd /SYNCI /SYNCO Vdd CKI CKO CKSEL Vss MCKS /SSYNC /IC /TEST BTYP /IRQ TRIG Vdd Vss /CS /WR /RD CA7 CA6 CA5 CA4 CA3 CA2 CA1 Vss Vdd CD15 CD14 CD13 CD12 CD11 CD10 CD09 CD08 CD07 CD06 Vss Vdd Vdd CD05 CD04 CD03 CD02 CD01 CD00 /WAIT Vss SI0 SI1 SI2 SI3 SI4 SI5 SI6 SI7 Vss Vdd SO0 SO1 SO2 SO3 SO4 SO5 SO6 SO7 Vss DB00 DB01 DB02 DB03 DB04 DB05 DB06 DB07 DB08 DB09 DB10 DB11 DB12 Vdd Vdd
I/O
I O I O I O I I I I I I O I/O I I I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O
FUNCTION
Power supply (3.3 V) Ground System master clock input (60 MHz or 30 MHz) System master clock output (High or 30 MHz) Power supply (5 V) Sync. signal input Sync. signal output Power supply (5 V) System clock input (30 MHz) System clock output (30 MHz) System master clock select (0: 60 MHz, 1: 30 MHz) Ground Serial I/O master clock input (128 x Fs) Serial I/O Sync. signal output Initial clear Test mode setting (0: Test, 1: Normal) Data bus type select (0: 8 bit, 1: 16 bit) IRQ output Trigger signal input/output Power supply (5 V) Ground chip select signal input Write signal input Read signal input
PIN NO.
NAME
I/O
I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O
FUNCTION
Ground
Address bus of internal register
Ground Power supply (3.3 V)
Data bus of internal register
Ground Power supply (3.3 V) Power supply (5 V) I/O I/O I/O I/O I/O I/O O I I I I I I I I O O O O O O O O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O
Data bus of internal register
WAIT output Ground
Serial data input
Ground Power supply (5 V)
Serial data output
Ground
Parallel data bus
Power supply (5 V) Power supply (3.3 V)
89 Vss 90 DB13 91 DB14 92 DB15 93 DB16 94 DB17 95 DB18 96 DB19 97 DB20 98 DB21 99 DB22 100 Vss 101 Vdd 102 DB23 103 DB24 104 DB25 105 DB26 106 DB27 107 DB28 108 DB29 109 DB30 110 DB31 111 TIMO/DBOB 112 Vss 113 Vdd 114 DA00 115 DA01 116 DA02 117 DA03 118 DA04 119 DA05 120 DA06 121 DA07 122 Vss 123 DA08 124 DA09 125 DA10 126 DA11 127 DA12 128 DA13 129 DA14 130 DA15 131 Vss 132 Vdd 133 (n.c) 134 Vdd 135 DA16 136 DA17 137 DA18 138 DA19 139 DA20 140 DA21 141 DA22 142 DA23 143 Vss 144 DA24 145 DA25 146 DA26 147 DA27 148 DA28 149 DA29 150 DA30 151 DA31 152 Vdd 153 Vss 154 A00 155 A01 156 A02 157 A03 158 A04 159 A05 160 A06 161 A07 162 A08 163 A09 164 Vss 165 Vdd 166 A10 167 A11 168 A12 169 A13 170 A14 171 A15/RAS 172 A16/CAS 173 A17/CE 174 /WE 175 /OE 176 Vdd
Parallel data bus
Ground Power supply (3.3 V)
Parallel data bus
Timing signal output/ Parallel data bus output/ input Ground Power supply (5 V)
Memory data bus
Ground
Memory data bus
Ground Power supply (3.3 V) Not used Power supply (5 V) I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O O O O O O O O O O O O O O O O O O O O
Memory data bus
Ground
Memory data bus
Power supply (5 V) Ground
Memory address (SRAM, PSRAM, DRAM)
Ground Power supply (3.3 V) Memory address (SRAM, PSRAM, DRAM) Memory address (SRAM, PSRAM) Memory address (SRAM, PSRAM), /RAS (DRAM) Memory address (SRAM, PSRAM), /CAS (DRAM) Memory address (SRAM), /CE (PSRAM) Memory write enable signal Memory output enable signal Power supply (5 V)
21
EMX68S / EMX88S
G AK4522VF-E2 (XW008A00) CODEC (CMOS A/D & D/A Converter)
PIN NO. 1
DSP: IC108
NAME
VREFH
I/O
I
2 3 4 5 6 7 8 9 10 11 12
AINR+ AINRAINL+ AINLVA AGND DIF0 DIF1 LRCK SCLK SDTI
I I I I I I I I I
PIN FUNCTION NAME I/O NO. Positive voltage reference input , VA 13 SDTO O Used as a positive voltage reference by 14 SMUTE I ADC & DAC, VREFH is conne externally to filtered VA. Rch analog positive input Rch analog negative input 15 DEM0 I Lch analog positive input 16 DEM1 I Lch analog negative input 17 MCKI I Analog power supply 18 VD Analog ground 19 DGND 20 /PD I Audio data interface format 21 CMODE I Input/Output channel clock 22 AOUTL O Audio serial data clock 23 AOUTR O Audio serial data input 24 VCOM O
FUNCTION
Audio serial data output Soft muteS When this pin goes H, soft mute cycle is intiated. When returning L, the output mute releases. De-emphasis frequency select Master clock Input/X'tal input Digital power supply Digital ground Reset Master clock select (Internal biased pin) H: 384fs, L: 256fs, NS: 512fs Lch analog output Rch analog output Common voltage output , VA/2
IC BLOCK DIAGRAM
74HCU04DT (XZ110A00) INVERTER DSP: IC104
74HC08DT(XZ108A00)
AND
DSP: IC111
NJM2060M(TE2)OP (XM560A00) Quad Operational Amplifier
MIX68: IC905, IC906, IC907, IC908 IC909, IC910 MIX88: IC905, IC906, IC907, IC908 IC909, IC910
1A 1Y 2A 2Y 3A 3Y
1 2 3 4 5 6 7 VSS
14 13 12 11 10 9 8
VDD 6A 6Y 5A 5Y 4A 4Y
1A 1B 1Y 2Y 2A 2B
1 2 3 4 5 6 7 Vss
14 13 12 11 10 9 8
VDD 4B 4A 4Y 3Y 3A 3B
NJM2068MD-T1 (XJ553A00) NJM4558MT-1 (IG103520) TL072CPSR (XV423A00) Dual Operational Amplifier
DSP-SPX1: IC105, IC106, IC107 MIX68: IC101, IC102, IC103, IC501 IC502, IC503, IC504, IC505 IC701, IC702, IC703, IC704 IC801, IC802, IC803, IC901 IC902, IC903, IC904, IC914 IC915, IC916, IC917, IC918 IC919, IC920, IC921, IC922 IC923 MIX88: IC101, IC102, IC103, IC301 IC302, IC303, IC501, IC502 IC503, IC504, IC505, IC701 IC702, IC703, IC704, IC801 IC802, IC803, IC901, IC902 IC903, IC904, IC914, IC915 IC916, IC917, IC918, IC919 IC920, IC921, IC922, IC923
LB1403N (XZ348A00) LED Driver
MIX68: IC911, IC912, IC913 MIX88: IC911, IC912, IC913
Output A Inverting Input A Non-Inverting Input A -DC Voltage Supply
1 2 3 4 -V
+V
8 7 6 5
+DC Voltage Supply Output B Inverting Input B Non-Inverting Input B
1 D1
+
+
+
+
+ +
-
+ + -
Constant Current Circuit
2 D2
3 D3
4 D4
5 GND
6 D5
7 Amp Output
8 IN
9 VCC
22
EMX68S / EMX88S
CIRCUIT BOARDS
CONTENTS MIX68 CIRCUIT BOARD (COMPONENT SIDE) ................................................................................................. 24 MIX68 CIRCUIT BOARD (PATTERN SIDE) ........................................................................................................ 26 MIX88 CIRCUIT BOARD (COMPONENT SIDE) ................................................................................................. 28 MIX88 CIRCUIT BOARD (PATTERN SIDE) ........................................................................................................ 30 DSP CIRCUIT BOARD (COMPONENT SIDE) .................................................................................................... 32 DSP CIRCUIT BOARD (PATTERN SIDE) ........................................................................................................... 33 PWR 1/4 CIRCUIT BOARD (COMPONENT SIDE) ............................................................................................. 34 PWR 2/4 CIRCUIT BOARD (COMPONENT SIDE) ............................................................................................. 36 PWR 3/4 CIRCUIT BOARD (COMPONENT SIDE) ............................................................................................. 36 PWR 4/4 CIRCUIT BOARD (COMPONENT SIDE) ............................................................................................. 36
23
EMX68S / EMX88S
G
MIX68 Circuit Board A
HIGH HIGH HIGH HIGH HIGH
HIGH
MID
MID
MID
MID
MID
MID
LOW
LOW
LOW
LOW
LOW
LOW
MONITOR
MONITOR
MONITOR
MONITOR
MONITOR
MONITOR PROGR
EFFECT
EFFECT
EFFECT
EFFECT
EFFECT
EFFECT
PARAMETE PAN PAN PAN PAN BAL/PAN BAL/PAN
ON LEVEL LEVEL LEVEL LEVEL LEVEL LEVEL TAP PAD PAD PAD PAD
LINE L
LINE L
Hi-Z
Hi-Z
Super Hi-Z
Super Hi-Z
LINE R
LINE R
Low-Z
Low-Z
Low-Z
Low-Z
MIC
MIC
24
A'
EMX68S / EMX88S
A
MONITOR GRAPHIC EQUALIZER
PHAMTOM ON / OFF
EFFECT RTN OR 2TR IN PROGRAM MASTER
MAIN GRAPHIC EQUALIZER PARAMETER N
+6 +3 0 -5 -10
POWER AMP MODE
ON EL TAP MASTER EFFECT RTN AUX IN 2TR IN
YAMAHA SPEAKER PROCESSING
STAND BY POWER
EFFECT OUT
to PWR1/4-CN101
EFFECT ON/OFF 2TR IN L REC OUT L MAIN L
to DSP-CN101
AUX IN L
TAP AUX IN R
2TR IN R
REC OUT R MAIN R MONITOR
Component side
A'
3NA-V826680 1
25
EMX68S / EMX88S
G
MIX68 Circuit Board
A
26
A'
EMX68S / EMX88S
A
Pattern side
A'
27
EMX68S / EMX88S
G
MIX88 Circuit Board
A
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
MID
MID
MID
MID
MID
MID
MID
MID
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
MONITOR
MONITOR
MONITOR
MONITOR
MONITOR
MONITOR
MONITOR
MON
EFFECT
EFFECT
EFFECT
EFFECT
EFFECT
EFFECT
EFFECT
EFFECT
PAN
PAN
PAN
PAN
PAN
PAN
BAL/PAN
BAL/P
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
PAD
PAD
PAD
PAD
PAD
PAD
LINE L
LINE L
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Super Hi-Z
Super Hi-Z
LINE R
LINE R
Low-Z
Low-Z
Low-Z
Low-Z
Low-Z
Low-Z
MIC
MIC
28
A'
EMX68S / EMX88S
A
HIGH MONITOR GRAPHIC EQUALIZER PHAMTOM ON / OFF
MID
LOW
EFFECT RTN MONITOR 2TR IN PROGRAM MASTER
EFFECT PARAMETER BAL/PAN ON LEVEL TAP
MAIN GRAPHIC EQUALIZER
+6 +3 0 -5 -10
POWER AMP MODE YAMAHA SPEAKER PROCESSING
EFFECT RTN
AUX IN
2TR IN MASTER
STAND BY POWER
EFFECT OUT LINE L
to PWR1/4-CN101 to DSP-CN101
LINE R EFFECT ON/OFF AUX IN L 2TR IN L REC OUT L MAIN L
TAP AUX IN R MIC
2TR IN R REC OUT R MAIN R MONITOR
Component side
A'
3NA-V826670 1
29
EMX68S / EMX88S
G
MIX88 Circuit Board
A
30
A'
EMX68S / EMX88S
A
Pattern side
A'
31
EMX68S / EMX88S
G
DSP Circuit Board
non connect
to MIX88-CN901 to MIX68-CN901
Component side
32
EMX68S / EMX88S
G
DSP Circuit Board
Pattern side
3NA-V826720
33
EMX68S / EMX88S
G
PWR 1/4 Circuit Board
A
to PWR2/4-W101RE2
to PWR1/4-W103OR1
to MIX-CN903
to PWR2/4-W101BE2
to PWR
A'
34
EMX68S / EMX88S
A
to PWR1/4-W103OR2
to FAN Assembly
to PWR2/4-W101BL2 to PWR2/4-W101WH2
to Power Transformer
Component side
A'
3NA-V826900 1
35
EMX68S / EMX88S
G
PWR 2/4 Circuit Board SPEAKERS A 1 2
(L+R)
B 1 2
BRIDGE
to PWR 1/4-W101RE1
to PWR 1/4-W101BE1
Component side
to PWR 1/4-W101BL1 to PWR 1/4-W101WH1
G
PWR 3/4 Circuit Board
G
PWR 4/4 Circuit Board
ON / OFF
AC IN
to PWR 3/4-W102YE/W102BR
to PWR 4/4-CN107
to Power Transformer
Component side Component side
PWR2/4: 3NA-V826900 1 PWR3/4: 3NA-V826900 1 PWR4/4: 3NA-V826900 1
36
EMX68S / EMX88S
INSPECTIONS
0. PREPARATION
(1) Mesuring instruments · Oscillator (Ballance output type, Output impedance 150) · Oscilloscope (Input impedance 100k) · Level meter (Input impedance 100k) · Distortion Meter (2) Notes for mesuring · Noise level must be mesured by using DIN AUDIO FILTER. · 0dB is equal to 0.775V.
1.
Power Indicator and Fan Check
Confirm that the power indicator LED lights up while the power is ON. Besides, confirm that the fan is rotating at low speed.
2. 2.1
Mixer Check Preparation
· Except otherwise indicated, proceed as follows. Input signal must be 1kHz sine curve. Output impedance of signal source must be 150. Connect the load of 10k to each output terminal. · Set each control as follows. CH INPUT (1-4: EMX68S / 1-6: EMX88S) EQ (HIGH, MID, LOW) level control: MONITOR level control: EFFECT level control: PAN: LEVEL control: PAD switch: CENTER MAX MAX CENTER MAX OFF
ST CH INPUT (5-6: EMX68S / 7-8: EMX88S) EQ (HIGH, MID, LOW) level control: CENTER MONITOR level control: EFFECT level control: BAL/PAN: LEVEL control: DIGITAL EFFECT PROGRAM select switch: PARAMETER control: DIGITAL EFFECT ON switch: TAP switch: MAIN(L, R) GRAPHIC EQUALIZER (7 band) fader: EFFECT RTN level control: AUX IN: 2TR IN: MASTER level control: CENTER MAX MAX MAX MAX 16 MIN OFF OFF MAX MAX CENTER MAX
37
EMX68S / EMX88S
MONITOR GRAPHIC EQUALIZER (7 band) fader: EFFECT RTN level control: 2TR IN: MASTER level control: PHANTOM switch: POWER AMP switch:
CENTER MAX MAX MAX OFF MAIN (L-R)
YAMAHA SPEAKER PROCESSING switch: OFF STAND-BY switch: OFF
2.2
Gain Check
On condition of 2.1, confirm that the output level of each terminal meets the table 2.2-1~2.2-4.
Table 2.2-1 INPUT TERMINALS [CH1-2: EMX68S / 1-4: EMX88S ] INPUT Low-Z INPUT LEVEL -62 -32 (PAD ON) -52 -22 (PAD ON) Table 2.2-2 INPUT TERMINALS [CH3-4: EMX68S / 5-6: EMX88S] INPUT INPUT LEVEL MAIN OUT(L,R) MONITOR OUT Low-Z -62 -32 (PAD ON) -42 Super Hi-Z -12 (PAD ON) +1±2 +1±2 +1±2 +1±2 +4±2 MAIN OUT(L,R) +1±2 +1±2 +1±2 +1±2 MONITOR OUT +4±2 EFFECT OUT +4±2 -
[unit: dBs] REC OUT -16.8±2 -
Hi-Z
EFFECT OUT +4±2 -
[unit: dBs] REC OUT -16.8±2 -
Table 2.2-3 INPUT TERMINALS [CH5-6: EMX68S / 7-8: EMX88S] INPUT MIC LINE L LINE R INPUT LEVEL -62 -22 -22 MAIN OUT(L,R) +1±2 +1±2 +1±2 MONITOR OUT +7±2 +7±2 +1±2 [unit: dBs] MONITOR OUT +1.8±2
[unit: dBs] EFFECT OUT +7±2 +7±2 +1±2
Table 2.2-4 INPUT LEVEL [AUX IN, 2TR IN] INPUT AUX IN 2TR IN INPUT LEVEL -22 -22 MAIN OUT(L,R) +4±2 +1.8±2
2.3
Frequency Characteristic Check
At each terminal of the Table 2.2-1~2.2-4, confirm that the output level for 20Hz, 20kHz signal are within +1, -3dB from the level for 1kHz signal.
38
EMX68S / EMX88S
2.4
EQ Response Characteristic Check
On condition of 2.1, set the LOW, MID, HIGH controls according to the table 2.4-1, and mesure the output level of MAIN OUTPUT. Then confirm that output level variations from center click position meet the table 2.4-1. When output level does not meet the table, change the input frequency until the output level meets the table. If the frequency variation is within ±20% of the rated value, the rusult can be regarded as OK.
Table 2.4-1 EQ HIGH MID LOW
VR Setting MAX MIN MAX MIN MAX MIN
INPUT FREQUENCY 10kHz 2.5kHz 100Hz
[unit: dB] RANGE OF VARIATION +12±2 -12±2 +14±2 -14±2 +12±2 -12±2
2.5
GEQ Response Characteristic Check
On condition of 2.1, set the GEQ faders according to the table 2.5-1, and mesure the output levels of MAIN OUTPUT and MONITOR OUTPUT. Then confirm that output level variations from center click position meet the table 2.5-1. When the output level does not meet the table, change the input frequency until the output level meets the table. If the frequency variation is within ±20% from the rated value, the result can be regarded as OK.
Table 2.5-1 125 INPUT FREQUENCY (for fader MAX) Variations (for fader MIN) 125Hz 250 250Hz 500 500Hz 1k 1KHz +12±2 -12±2 2k 2KHz 4k 4KHz
[unit: dB] 8k 8KHz
2.6
LED Meter Check
When the output level of MAIN OUT and MONITOR OUT meets the Table 2.6-1, confirm that the corresponding LED meter starts to light up.
Table 2.6-1 LED OUTPUT LEVEL
+6 +10±2
+3 +7±2
0 +4±2
-5 -1±2
[unit: dBs] -10 -6±2.5
2.7
Distortion Rate Check
Set the INPUT and MASTER volume for each terminal of the table 2.2-1~2.2-4 to nominal position. Then, confirm that the distortion rate is within 0.3% when the output level is +14dBs. (except REC OUT)
2.8
Maximum Output Level Check
On condition of 2.7, mesure the output levels of MAIN OUT, MONITOR OUT, EFFECT OUT. Then, confirm that the output level of +20dBs can be gained with the distortion rate less than 1%.
39
EMX68S / EMX88S
2.9
EIN Check
Note: This mesurement should be performed by using DIN AUDIO FILTER. On condition of 2.1, set the LEVEL knob for mesuring channel to maximum, set the PAN or BAL/PAN knob to the left limit and set the LEVEL knob for other channels to minimum. Connect the 150 load between the Low-Z and the MIC of input channel, and confirm that the noise level of MAIN OUT is less than -58dB. However, less than -56dB as for CH3, 4 (EMX68S) / CH5, 6 (EMX88S). If noise level is more than the rated value, find the noise level converted from the input level for each channel. Then confirm that the noise level is less than -124dB as for CH1, 2, 5, 6 (EMX68S) / CH1-4, 7, 8 (EMX88S), and less than -122dB as for CH3, 4 (EMX68S) / CH5, 6(EMX88S).
2.10 Remaining Noise Check
On condition of 2.1, set the LEVEL knobs of all input channels to minimum. Next, set the MASTER knobs of MAIN and MONITOR to maximum or minimum, and mesure the noise level of MAIN OUT, MONITOR OUT, and EFFECT OUT. (without MASTER level control) Then, confirm that the noise levels are less than the values shown in the table 2.10-1. Table 2.10-1 MASTER VR MAX MIN MAIN OUTPUT(L,R) -73 -94 MONITOR OUTPUT -69 -94 [unit: dB] EFFECT OUT -84 -
2.11 PHANTOM Check
Connect the 2.7k load between the pin1 and pin2 of Low-Z or MIC, and short-circuit the pin2 and pin3 of them. Then, confirm that the load voltage is 10±3V when the PHANTOM switch is ON.
2.12 DIGITAL EFFECT Check
· Confirm that the ON LED lights up when the DIGITAL EFFECT ON switch is ON, and that the LED goes out when the switch is OFF. · Set the PROGRAM select switch to 16, PARAMETER VR to minimum, and EFFECT RTN control of MONITOR to maximum. At CH1, set the MONITOR level control to minimum, EFFECT level control to maximum, LEVEL control VR to maximum, and input -60dBs signal into Low-Z terminal. Then confirm that the output level is more than 0dBs when the DIGITAL EFFECT ON switch is ON.
2.13 STAND-BY Check
On condition of 2.1, apply the signal into CH1 Low-Z terminal so that each output level of MAIN (L, R) OUT, MONITOR OUT, EFFECT OUT becomes +14dB. Confirm that the output level becomes less than -46dB when the STAND-BY switch is turned on. Besides, confirm that the LED blinks.
2.14 Stability Check
Note: This mesurement should be performed with a load resistance connected to power amplifier output. · At each input terminal, connect 10pF~0.1µF capacitor in parallel to the load resistance, and confirm that the system works normally without oscillation etc. · Set all volume knobs and EQ faders to maximum, and confirm that the system works normally. (Especially, does not oscillate when the EQ HIGH is set to maximum)
40
EMX68S / EMX88S
3. Power Amplifier Check 3.1 For the case that the POWER AMP switch is 'MAIN(L+R)-MON' or 'MAIN L-MAIN R' 3.1.1 Preparation
· INPUT terminal: CH 7 LINE L(EMX88S) / CH 5 LINE L(EMX68S) · POWER AMP switch: MAIN L-MAIN R · OUTPUT terminal: SPEAKERS A1, SPEAKERS B1 · Load Resistance: 4 (more than 400W) Except otherwise indicated, the load resistance should be connected only for the power amplifier check. · Set the LEVEL control of CH1-4, 6 (EMX68S) and CH1-6, 8 (EMX88S) to minimum. · Except the above, same as the setting of 2.1.
3.1.2 Power ON Mute Check
Turn on the power and confirm that the mute system is released and the relay is switched on after 2.5±1 seconds.
3.1.3 Output Terminal D.C. Voltage Check
Ground input terminal and confirm that the D.C. voltage of output terminal is 0±100mV.
3.1.4 Gain Check
(1) Apply -26dBs signal into the input terminal and confirm that the output level of SPEAKERS A1, B2 is 20.0±2.0dBs. (2) Set the POWER AMP switch to 'MAIN(L+R)-MON ', perform the same mesurement, and confirm that the output levels are as follows. SPEAKERS A1, A2: 23.0±2.0dBs SPEAKERS B1, B2: 26.0±2.0dBs
3.1.5 Frequency Response Check
· YAMAHA SPEAKERS PROCESSING Switch OFF Apply -26dBs signal into input terminal, and confirm that the output level for 20Hz, 20kHz signal are within +1, -3dB from the level for 1kHz signal. · YAMAHA SPEAKERS PROCESSING Switch ON Apply 70Hz / -26dB signal into input terminal, and confirm that the output level is within 6.5±2dB from the level for 1kHz input with YAMAHA SPEAKERS PROCESSING switch OFF. Besides, confirm that the LED lights up when YAMAHA SPEAKERS PROCESSING switch is ON and that LED goes out when the switch is OFF.
3.1.6 Harmonic Distortion Rate Check
Note: This mesurement should be finished in 30 seconds. · Apply 1kHz signal into input terminal, and confirm that output level of 400W/4 (34.3dBs) can be gained with harmonic distortion rate less than 0.5%. · Apply 20Hz, 1kHz and 20kHz signal into input terminal, and confirm that harmonic distortion rate is less than 0.5% as for 20Hz and 1kHz, less than 0.7% as for 20kHz when output level of 200W/4 (31.2dBs) can be gained.
3.1.7 Remaining Noise Check
Set the MASTER control of MAIN and MONITOR to minimum, and confirm that the noise level of output terminal is less than -65dB. Note: Take care not to be affected by inductive noise. This mesurement should be performed by using DIN AUDIO FILTER.
41
EMX68S / EMX88S
3.1.8 Stability Check
(1) Connect 10pF~0.47µF capacitor in parallel to the 4 load resistance and apply rectangule signal of 10kHz/-26dBs. Then, confirm that overshoot and ringing are as follows. Overshoot: Vp/Vo < 1.8 = Ringing: within 5 waves (2) Connect 10µH~0.47H inductor in series to the 4 load resistance and apply rectangule signal of 10kHz/-26dBs. Then, confirm that overshoot and ringing meet the same condition as (1). (3) Remove the 4 load resistance and connect only 10pF~0.47µF capacitor as load, and apply rectangule signal of 10kHz/26dBs. Then confirm that the system does not oscillate. Besides, confirm that overshoot and ringing are as follows. Overshoot: Vp/Vo < 2.5 = Ringing: within 7 waves
3.1.9 Protection Circuit Check
(1) Apply 10Hz signal until output level is saturated, and confirm that the protection circuit works and the relay does not open. (2) Apply 1Hz, Vp-p = 6V(8.7dBs) signal, and confirm that the protection circuit starts to work in 2 seconds to cut off the signal. (3) Stop applying the input signal, and confirm that the system automatically resumes in 5 seconds.
3.1.10 PC LIMITER Circuit and LIMITER Circuit Check
(1) Connect 1(±5%, 100W) load and apply -20dBs signal into input terminal. (2) Confirm that the protection circuit starts to work and indicator LED lights up. (3) Stop applying the input signal, and confirm that the system automatically resumes in 5 seconds.
3.1.11 LIMITER Indicator Check
Apply 1kHz/-10.8dBs signal, and confirm that LIMITER indicator lights up.
3.1.12 Efficiency Check
Apply 1kHz/-24dB signal into input terminal, and confirm that the primary power is 250±50W. If the primary power does not meet the rated value, adjust the input level until the output level of SPEAKERS becomes 14.1V(25.2dBs).
3.2 For the case that the POWER AMP switch is 'BRIDGE' 3.2.1 Preparation
· Connect load resistance of 8 (more than 800W) to SPEAKERS terminal. · Set each control as follows. POWER AMP switch: BRIDGE LEVEL control of CH1-4, 6 (EMX68S): MIN LEVEL control of CH1-6, 8 (EMX88S): MIN Except the above, same as the setting of 2.1. Note: Use following channels for input and output terminals. Input: CH 5 LINE L (EMX68S) / CH 7 LINE L (EMX88S) Output: (SPEAKERS) L+R BRIDGE
3.2.2 Gain Check
Apply -26dB signal into input terminal, and confirm that the output level of 23±2 dBs can be gained.
3.2.3 Frequency Response Check
Apply -26dBs signal into input terminal, and confirm that the output level for 20Hz, 20kHz signal are within +1, -3dB from the level for 1kHz signal.
4. 4.1 42
Miscellaneous Power Supply Voltage Variation
Change the voltage of power supply in the range of ±10%, and confirm that the system works normally.
EMX68S / EMX88S
43
EMX68S / EMX88S
44
EMX68S / EMX88S
45
EMX68S / EMX88S
46
EMX68S / EMX88S
47
EMX68S / EMX88S
48
EMX68S / EMX88S
49
EMX68S / EMX88S
OVERALL CIRCUIT DIAGRAM
CONTENTS MIX68 Circuit Board 1/5 ...................................................................................................................................... P1 MIX68 Circuit Board 2/5 ...................................................................................................................................... P2 MIX68 Circuit Board 3/5 ...................................................................................................................................... P3 MIX68 Circuit Board 4/5 ...................................................................................................................................... P4 MIX68 Circuit Board 5/5 ...................................................................................................................................... P5 MIX88 Circuit Board 1/5 ...................................................................................................................................... P6 MIX88 Circuit Board 2/5 ...................................................................................................................................... P7 MIX88 Circuit Board 3/5 ...................................................................................................................................... P8 MIX88 Circuit Board 4/5 ...................................................................................................................................... P9 MIX88 Circuit Board 5/5 .................................................................................................................................... P10 DSP Circuit Board ..............................................................................................................................................P11 PWR Circuit Board 1/4, PWR 2/4, PWR 3/4, PWR 4/4 ..................................................................................... P12
50
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 1/12 (MIX68 1/5)
EMX68S / EMX88S
A
MIX68
OP AMP
B
OP AMP
OP AMP
C
OP AMP OP AMP OP AMP
OP AMP
D
OP AMP
OP AMP
OP AMP
OP AMP
E
OP AMP
OP AMP
OP AMP
OP AMP
F
G
(to P.3 E-3)
(to P.3 E-3)
(From P.5 E-7)
(From P.5 E-7)
(From P.5 D-7)
(to P.3 E-3)
(to P.3 E-3)
H
38CC1-8822114-2 1
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 2/12 (MIX68 2/5)
A
(From P.5 D-7)
EMX68S / EMX88S
OP AMP OP AMP
B
OP AMP OP AMP
C
OP AMP OP AMP OP AMP
D
OP AMP OP AMP OP AMP
(to P.3 E-3)
OP AMP
(to P.3 E-3)
E
(to P.3 E-3)
F
OP AMP OP AMP
(to P.3 E-3)
OP AMP
OP AMP
(From P.5 E-7) (From P.5 E-7)
G
38CC1-8822114-3 1
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 3/12 (MIX68 3/5)
EMX68S / EMX88S
A
OP AMP
B
(From P.5 C-8)
(From P.5 C-8)
C
to DSP-CN101
D
(From P.1 G-5) (From P.2 D-9) (From P.1 G-4) (From P.2 D-9) (From P.1 G-4) (From P.2 E-9) (From P.1 G-4) (From P.2 F-9)
OP AMP
OP AMP
E
(From P.5 C-7)
(to P.4 B-3)
(to P.4 B-3)
(From P.5 C-6)
F
(to P.4 F-3)
(to P.4 G-3)
G
(From P.5 E-7) (From P.5 E-7)
OP AMP
38CC1-8822114-4 2
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 4/12 (MIX68 4/5)
A
EMX68S / EMX88S
OP AMP
B
(From P.3 E-11) (From P.3 F-11) (From P.5 C-7)
LED DRIVER
OP AMP
C
(From P.5 C-7)
OP AMP
LED DRIVER
D
(to P.5 D-2)
(to P.5 E-2)
E
(From P.5 C-7)
(From P.5 C-6)
OP AMP
(From P.3 F-11)
LED DRIVER OP AMP
F
OP AMP
G
(From P.5 E-7) (From P.5 E-7)
OP AMP
OP AMP
(From P.3 G-11)
38CC1-8822114-5 1
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 5/12 (MIX68 5/5)
EMX68S / EMX88S
A
B
(to P.3 E-1) (to P.4 B-9) (to P.4 C-9) (to P.4 E-9)
OP AMP OP AMP
(to P.4 E-10) (to P.3 F-1)
(to P.3 C-11) (to P.3 C-11)
C
to PWR1/4-CN101
(From P.4 D-8)
(to P.1 G-4) (to P.2 B-3)
D
(From P.4 D-8)
OP AMP
(From P.1 G-2) (From P.2 F-10) (From P.3 G-11) (From P.4 G-5) (to P.1 G-3) (to P.2 F-10) (to P.3 G-11) (to P.4 G-5)
E
OP AMP
OP AMP
F
G
38CC1-8822114-6 1
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 6/12 (MIX88 1/5)
A
EMX68S / EMX88S
MIX88
B
(From P.7 B-2)
OP AMP OP AMP
C
OP AMP OP AMP OP AMP
OP AMP
OP AMP
OP AMP
D
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
E
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
F
G
(From P.10 E-7) (From P.10 E-7) (From P.10 D-7) (to P.8 E-3) (to P.8 E-3)
38CC1-8822113-2 1
(to P.8 E-3)
(to P.8 E-3)
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 7/12 (MIX88 2/5)
EMX68S / EMX88S
A
(to P.6 B-6)
OP AMP OP AMP
B
OP AMP OP AMP
C
OP AMP OP AMP OP AMP
D
OP AMP OP AMP OP AMP OP AMP
(to P.8 E-3) (to P.8 E-3)
(to P.8 E-3)
E
OP AMP
(to P.8 E-3)
OP AMP
OP AMP
OP AMP
(From P.10 E-7) (From P.10 E-7)
F
G
38CC1-8822113-3 1
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 8/12 (MIX88 3/5)
A
EMX68S / EMX88S
OP AMP
B
(From P.10 C-8)
(From P.10 C-8)
C
to DSP-CN101
D
(From P.6 G-5) (From P.7 D-9) (From P.6 G-5) (From P.7 E-9) (From P.6 G-5) (From P.7 E-9) (From P.6 G-5) (From P.7 F-9)
OP AMP
OP AMP
E
(From P.10 C-7)
(to P.9 B-3)
(to P.9 B-3)
F
(From P.10 C-6)
(to P.9 F-3)
(to P.9 G-3)
G
OP AMP
(From P.10 E-7) (From P.10 E-7)
38CC1-8822113-4 1
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 9/12 (MIX88 4/5)
EMX68S / EMX88S
A
OP AMP
(From P.8 E-11) (From P.8 F-11) (From P.10 C-7)
B
OP AMP
LED DRIVER
(From P.10 C-7)
OP AMP
C
LED DRIVER
(to P.10 D-2)
D
OP AMP
(to P.10 E-2)
OP AMP
(From P.10 C-7)
(From P.10 C-6)
E
OP AMP
(From P.8 F-11)
LED DRIVER OP AMP
F
OP AMP
38CC1-8822113-5 1
From P.10 E-6 From P.10 E-6
OP AMP
G
OP AMP
(From P.8 G-11)
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 10/12 (MIX88 5/5)
A
EMX68S / EMX88S
B
(to P.8 E-1) (to P.9 B-8) (to P.9 C-8) (to P.9 E-8)
OP AMP
C
OP AMP
(to P.8 F-1) (to P.9 E-9)
(to P.8 C-8) (to P.8 B-8)
to PWR1/4-CN101
(From P.9 D-9)
D
(to P.6 G-4)
E
(From P.9 D-9)
OP AMP
(to P.6 G-3) (to P.7 F-9) (to P.8 G-11) (to P.9 G-5) (to P.6 G-4) (to P.7 F-9) (to P.8 G-11) (to P.9 G-5)
OP AMP
OP AMP
OP AMP
F
G
38CC1-8822113-6 1
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 11/12 (DSP)
DSP
EMX68S / EMX88S
A
SYSTEM RESET
REGULATOR +3.3V
EEPROM 2K
B
CPU
to MIX68-CN901 to MIX88-CN901 Non Connect
C
DIR
AND AND
D
INVERTER
DRAM 4M OP AMP A/D&D/A
E
OP AMP
DSP
OP AMP
F
G
DRAM 4M
38CC1-8822163-2
uPC29M33T-E1(XU965A00) REGULATOR +3.3V DSP: IC101
2
1 3 1:V in 2:GND 3:V out
H
EMX68S / EMX88S
EMX68S / EMX88S
1
2
3
4
5
6
7
8
9
10
11
EMX68S / EMX88S CIRCUIT DIAGRAM 12/12 (PWR1/4, PWR2/4, PWR3/4, PWR4/4)
A
EMX68S / EMX88S
PWR 1/4
B
to PWR1/4-W103OR1
C
to MIX68-CN903 to MIX88-CN903
REGULATOR +5V
D
REGULATOR +15V
Common Power Transformer
to Power Transformer
E
PWR 4/4
REGULATOR -15V
U, H only
POWER ON / OFF
to FAN Assembly
F
PWR 2/4
to PWR1/4 W103OR2
Install
PWR 3/4
NJM7815FA(XD853A00) REGULATOR +15V NJM7915FA(XD854A00) REGULATOR -15V
PWR1/4: IC102
Not Install
NJM7805FA(XJ607A00) REGULATOR +5V
PWR1/4: IC103
RBV-1306 (V2261600) DIODE STACK 13.0A 600V
PWR1/4: D153
G
AC IN
PWR1/4: IC101
1SS133, 1SS176, HSS104 (VD631600) DIODE
PWR1/4: D101-108,112-113, 122-125,128,131-132,139
PWR 1/4: PWR 2/4: PWR 3/4: PWR 4/4:
38CC1-8822388-2 38CC1-8822388-2 38CC1-8822388-2 38CC1-8822388-2
1 1 1 1
1 A
2
BRIDGE
1 B
2
32
1 1: OUTPUT 2: COMMON 3: INPUT
32
1 1: OUTPUT 2: INPUT 3: COMMON
32
1
1 1: OUTPUT 2: COMMON 3: INPUT
2 1: ANODE 2: CATHODE
SPEAKERS to Power Transformer
MTZ J 8.2B 8.2V (VG438900) D8LD40 (VR149700) ZENER DIODE DIODE STACK 8.0A 400V
PWR1/4: D144 PWR1/4: D147,151
FMX-22S (VS135800) DIODE STACK 10.0A 200V
PWR1/4: D155,156
1N4004L (VU801600) DIODE PWR1/4: D120-121,126,
140-143,145-146, 148-150,152,154,157
H
2
1 1
1: ANODE 2: CATHODE
1
2
1 3
2
2 3
1: ANODE 2: CATHODE
EMX68S / EMX88S
EMX68S / EMX88S
EMX68S / EMX88S
PARTS LIST
RACK MOUNT KIT RK-88
CONTENTS OVERALL ASSEMBLY ...................................................................................................... 2 FRONT PANEL ASSEMBLY .............................................................................................. 4 REAR PANEL ASSEMBLY ................................................................................................ 6 ELECTRICAL PARTS ....................................................................................................... 8 RK-88 RACK MOUNT KIT .............................................................................................. 47 Note) DESTINATION ABBREVIATIONS A: B: C: D: E: F: H: I: J: Australian model British model Canadian model German model European model French model North European model Indonesian model Japanese model M: South African model O: Chinese model Q: South-east Asia model T: Taiwan model U: U.S.A. model V: General export model (110V) W: General export model (220V) N,X: General export model Y: Export model
WARNING Components having special characteristics are marked specifications equal to those originally installed.
and must be replaced with parts having
· The numbers in " QTY " show quantities for each unit. · The parts with " - - " in " PART NO. " are not available as spare parts. · The mark " } " in the remarks column indicates that 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.
1
I OVERALL ASSEMBLY
40
60
10 41
43 42
80
50 70 100
90
B130 B50 B30 B40 B70
B40
B10 B40
110
B120 B90 B60
B20
B80
44
44
B110
2
EMX68S / EMX88S
REF NO.
PART NO.
DESCRIPTION
OVERALL ASSEMBLY Overall Assembly Overall Assembly Overall Assembly Overall Assembly Overall Assembly Overall Assembly Overall Assembly Overall Assembly Body Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Holder, Transformer Power Transformer Power Transformer Power Transformer Power Transformer Shield Plate Bind Head Tapping Screw-B Bind Head Tapping Screw-B Bind Head Screw Front Panel Assembly Front Panel Assembly Bind Head Screw Bind Head Screw Bind Head Screw Label, Date Cord Body Assembly Body Assembly, Sub Front Frame, Sub Handle Assembly Bind Head Tapping Screw-P Bind Head Screw Side Plate Bind Head Screw Side Plate Bind Head Screw Shield Sheet Reinforcement Plate Bind Head Screw ACCESSORIES AC Cord AC Cord AC Cord AC Cord J J U U H H A A J COM A A H H J J U U
REMARKS
EMX-68S/88S J, U, H, A EMX-68S J (V832430) EMX-88S J (V832050) EMX-68S U, V (V832440) EMX-88S U, V (V832060) EMX-68S H, B, W (V832450) EMX-88S H, B, W (V832070) EMX-68S A (V832460) EMX-88S A (V832080) (V832150) EMX-88S A (V832190) EMX-68S A (V832500) EMX-88S H (V832180) EMX-68S H (V832490) EMX-88S J (V787000) EMX-68S J (V832470) EMX-88S U (V832170) EMX-68S U (V832480) J U, V H, B, W A
QTY RANK
* * * * * *
10 40 40 40 40 40 40 40 40 41 42 42 42 42 43 44 50 60 70 70 80 90 100 110
-----------------V7871800 X0339B00 X0340B00 X0341B00 X0342B00 V7019800 EG340190 VR138400 VB132700 --VB132700 VB403600 VP156800 VA039300 -V8322500 V8322600 V8419500 V8322700 EG340110 -EG340360 -EG340360 V8183300 -EG340360 V6283900 V6284300 V6284400 V7240300
UL CE A AS A CP2000 4.0X8 MFZN2BL 4.0X12 MFZN2BL 4.0X12 MFZN2BL J COM J COM 4.0X12 MFZN2BL 4.0X20 MFZN2BL A4.0X8 MFZN2BL DATE CODE J COM J COM J COM J COM 4.0X30 MFZN2BL 4.0X16 MFZN2BL LEFT 4.0X8 MFZN2BL RIGHT 4.0X8 MFZN2BL
2 6 8 EMX-88S EMX-68S (V832200) (V832510) 7
01 01 01
U (V832150)
01 01 01 03
* * * *
*
B10 B20 B30 B40 B50 B60 B70 B80 B90 B110 B120 B130
10 4 (V839690) 4 (V839700) 2 (V850510)
01 01 01
4.0X8 MFZN2BL
6
01
BS H05VV-F3X0.75 UC SJT E H05VV-FX3 0.75 J VCTF 0.75X3
B U, V H, W, A J
*: New Parts
RANK: Japan only
3
EMX68S / EMX88S
I FRONT PANEL ASSEMBLY
EMX-68S
50 90 60 70 90
EMX-88S
50 90 60 70 90
70 60 80 90
70 60 80 90
250 240 230 260 270 280 160
20
130
10
170 40 190
140
180 41 30
220 200 210 120 100 110
4
EMX68S / EMX88S
REF NO.
PART NO.
DESCRIPTION
FRONT PANEL ASSEMBLY Front Panel Assembly Front Panel Assembly Front Panel Front Panel Circuit Board Circuit Board PCB Support Screw Bonding Tapping Screw-B Bonding Tapping Screw-B Knob J COM J COM
REMARKS
EMX-68S/88S EMX-68S EMX-88S EMX-68S EMX-88S EMX-68S EMX-88S (V832510) (V832200)
QTY RANK
* * * *
10 10 20 20 30 40 41 41 50
--V8325700 V8323300 V8266800 V8266700 V3291600 V3289800 VN413300 VN413300 V6225300
MIX68 MIX88 NEW NIFCO BL 3X25 MFZNBL 3.0X8 MFZN2BL 3.0X8 MFZN2BL GREEN/M-GRAY
50
V 6 2 2 5 3 0 0 Knob V 6 2 2 5 6 0 0 Knob
GREEN/M-GRAY
60
L-GRAY/M-GRAY
60
V 6 2 2 5 6 0 0 Knob
L-GRAY/M-GRAY
70
V 6 2 2 5 4 0 0 Knob
BLUE/M-GRAY
70
V 6 2 2 5 4 0 0 Knob
BLUE/M-GRAY
80 80 90
V 6 2 2 5 5 0 0 Knob V 6 2 2 5 5 0 0 Knob V 6 2 2 5 7 0 0 Knob
RED/M-GRAY RED/M-GRAY L-GRAY/D-GRAY
90
V 6 2 2 5 7 0 0 Knob
L-GRAY/D-GRAY
EMX-88S EMX-68S EMX-68S HIGH (CH1-6), MID (CH1-6), LOW (CH1-6) EMX-88S HIGH (CH1-8), MID (CH1-8), LOW (CH1-8) EMX-68S EFFECT (CH1-6), PARAMETER, EFFECT RTN (MONITOR, MAIN) EMX-88S EFFECT (CH1-8), PARAMETER, EFFECT RTN (MONITOR,MAIN) EMX-68S MONITOR (CH1-6), 2TR IN (MONITOR, MAIN), AUX IN (MAIN) EMX-88S MONITOR (CH1-8), 2TR IN (MONITOR, MAIN), AUX IN (MAIN) EMX-68S PAN (CH1-6) EMX-88S PAN (CH1-8) EMX-68S LEVEL (CH1-6), PROGRAM, MASTER (MONITOR ,MAIN) EMX-88S LEVEL (CH1-8), PROGRAM, MASTER (MONITOR, MAIN)
15 15 17 13 18
01 01 01 01 01
24
01
9
01
11
01
9
01
11
01
6 8 9
01 01 01
11
01
*
* *
*
* *
100 110 120 130 140 160 170 180 190 200 210 220 230 240 250 260 270 280
VB659000 Bind Head Screw VU859100 Escutcheon, Power Switch VU859000 Power Switch Knob AAX33030 Circuit Board EP600230 Bind Head Tapping Screw-B Shield Case -EP600230 Bind Head Tapping Screw-B MF127100 Connector Assembly V 9 1 0 1 0 0 0 Connector Assembly Wiring Assembly -VP156800 Bind Head Screw V 8 2 7 3 1 0 0 Mute Guard Shield Plate -EP600230 Bind Head Tapping Screw-B VZ765100 Cord Binder V 3 2 2 5 0 0 0 Ferrite Core Cable Cramp -VV104600 Cord Holder
3.0X8 MFZN2BL MX12/4 MX12/4 DSP-SPX1 3.0X6 MFZN2BL 3.0X6 MFZN2BL 27 100MM P=1.25 24185&2426 15P800L GND A4.0X8 MFZN2BL
2 POWER ON/OFF (V826720) 4 (V787200) 2
01 02 01 01 01
(V827280) 01 (V841270)
3.0X6 MFZN2BL TS-0708 KSS FR25/15/12-D40 AB-3S-3M NYLON66 CV-100
6 (V907890)
01 02 03 01
*: New Parts
RANK: Japan only
5
I REAR PANEL ASSEMBLY
110 100 10 120 130
90 60 80 20 30a 40 50
260
170 160
30b 30c 240 250
140
30d 70
180
240
150
260
6
EMX68S / EMX88S
REF NO.
PART NO.
DESCRIPTION
REAR PANEL ASSEMBLY Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Assembly Rear Panel Rear Panel Rear Panel Rear Panel Rear Panel Rear Panel Rear Panel Rear Panel Heat Sink Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Bind Head Screw Support TR Holder A TR Holder B Insulation Sheet Bind Head Tapping Screw-B Fan Angle Bracket, Fan Support Bind Head Screw Bind Head Tapping Screw-B Bonding Tapping Screw-B Holder, Cord Bind Head Tapping Screw-B Bind Head Tapping Screw-B Bind Head Screw Angle Bracket, AC Inlet Clip J J U U H H A A J J U U H H A A PWR B88 1/4 J PWR B88 1/4 H PWR B88 2/4 J PWR B88 3/4 J PWR B88 3/4 U PWR B88 3/4 H PWR B88 4/4 J SP 3.0X8 MFZN2Y H=7.4 B=5.5
REMARKS
EMX-68S/88S J, U, H, A EMX-68S J (V832470) EMX-88S J (V787000) EMX-68S U (V832480) EMX-88S U (V832170) EMX-68S H (V832490) EMX-88S H (V832180) EMX-68S A (V832500) EMX-88S A (V832190) EMX-68S J EMX-88S J EMX-68S U EMX-88S U EMX-68S H EMX-88S H EMX-68S A EMX-88S A (V787110) J, U (V826900z) H, A (V826920) (V826900) J (V826900) U (V826910) H, A (V826920) (V826900)
QTY RANK
* * * * * * * * * * * * * * *
*
10 10 10 10 10 10 10 10 20 30a 30a 30b 30c 30c 30c 30d 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 240 250 260
--------V8325200 V8322800 V8325300 V8322900 V8325400 V8323000 V8325500 V8323100 -AAX32800 AAX32810 AAX32820 AAX32830 AAX32840 AAX32850 AAX32860 EG330290 VV086500 --V5214900 VQ074600 V6147300 V2951400 -VT229100 VQ074600 VN413300 V4773400 EG340190 EG340190 VP156800 V8098800 V7646900
6 6 (V521320) (V521330)
01 01
3.0X12 MFZN2BL 3110GLB5WB50H02 (V813390) 4.0X30 MFZN2BL 3.0X12 MFZN2BL 3.0X8 MFZN2BL 4.0X8 MFZN2BL 4.0X8 MFZN2BL A4.0X8 MFZN2BL F1B84 TIFCO
2 16
03 01 08 03 01 01 01 01 01 01 01
2 2 2 2 2 2 6
*: New Parts
RANK: Japan only
7
EMX68S / EMX88S
ELECTRICAL PARTS
REF NO.
PART NO.
DESCRIPTION
ELECTRICAL PARTS Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board DSP-SPX1 MIX68 MIX88 PWR B88 1/4 PWR B88 1/4 PWR B88 2/4 PWR B88 3/4 PWR B88 3/4 PWR B88 3/4 PWR B88 4/4
REMARKS
(V826720) (X0621B0) EMX-68S (X0618C0) EMX-88S (X0617C0) J, U (V826900) (X0623B0) H, A (V826920) (X0623B0) (V826900) (X0623B0) J (V826900) (X0623B0) U (V826910) (X0623B0) H, A (V826920) (X0623B0) (V826900) (X0623B0)
QTY RANK
* * * * * * * * * *
AAX33030 V8266800 V8266700 AAX32800 AAX32810 AAX32820 AAX32830 AAX32840 AAX32850 AAX32860 AAX33030 UX145100 UX145100 UR847470 UX145100 UX145100 UA954470 UR847470 UR847470 UR838100 UR838100 UX145100 UX145100 UX145100 UX062100 UX064100 UX064100 UX145100 UX064100