Gebruiksaanwijzing /service van het product A-9120DH van de fabrikant Toa
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OPERA TING INSTRUCTIONS 9000 SERIES AMPLIFIERS M-9000 A-9060DH A-9120DH Thank you for purchasing TOA's 9000 series Amplifier. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment. MA TRIX MODE version This manual is intended for those who use the 9000 Series Amplifier in the Matrix mode.
2 T ABLE OF CONTENTS 1. IMPORT ANT SAFETY INSTRUCTIONS ........................................................... 5 2. SAFETY PRECAUTIONS ....................................................................................... 6 3. GENERAL DESCRIPTION .
3 1 1. SYSTEM DESIGN-TO-OPERA TION FLOW ................................................... 25 12. SETTING 12.1. Setting Menu Flow ............................................................................................... 26 12.2. Setting Keys and Knobs .
4 15. CONNECTIONS 15.1. Control I/O Terminal Connections 15.1.1. Remote volumes 1, 2 ............................................................................... 68 15.1.2. Control inputs 1 – 4 ....................................................
5 1. IMPORT ANT SAFETY INSTRUCTIONS • Read these instructions. • Keep these instructions. • Heed all warnings. • Follow all instructions. • Do not use this apparatus near water. • Clean only with dry cloth. • Do not block any ventilation openings.
6 2. SAFETY PRECAUTIONS • Before installation or use, be sure to carefully read all the instructions in this section for correct and safe operation. • Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or cautions regarding safety.
7 When Installing the Unit • Never plug in nor remove the power supply plug with wet hands, as doing so may cause electric shock. • When unplugging the power supply cord, be sure to grasp the power supply plug; never pull on the cord itself. Operating the unit with a damaged power supply cord may cause a fire or electric shock.
8 3. GENERAL DESCRIPTION TOA's M-9000 Matrix Mixer is designed to be used in conjunction with optional modules and can be configured for up to 8 inputs and 8 outputs.
Important Be sure to disconnect the power supply plug from the AC outlet when changing the mode. Since the changes in mode will erase all setting contents, download the set files that need to be stored using the supplied PC software.
10 5.2. Glossary • Ducker function The Ducker function automatically attenuates input signals with lower priority when two or more audio signals are simultaneously received. This function cannot be used if any of such received inputs is not set for the Ducker function.
11 6. INST ALLA TION PRECAUTIONS • Keep the A-9060DH and A-9120DH amplifiers over 10 cm away from objects that may obstruct air flow to prevent the unit's internal temperature rise.
12 8. NOMENCLA TURE AND FUNCTIONS 8.1. M-9000, A-9060DH, A-9120DH [Front] ON/OFF OUTPUT SEL ON/OFF OUTPUT VOLUME INPUT VOLUME POWER UTILITY ESC/BACK MEMORY ENTER PARAMETER 8 7 6 5 4 3 2 1 INPUT SELECT TOA 9000 SERIES PRE-AMPLIFIER M-9000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1.
13 d B kH z m sec COM FAULT KEYLOCK EMERGENCY EQ COMP GATE DELAY DUCK NOM LOUD TONE GAIN d B FREQ Q OL 0 –10 – 20 – 30 – 40 OL 0 – 10 – 20 – 30 – 40 FADER LEVEL FADER LEVEL 12 34 5 6 7 8 12 3 4 56 7 8 5 5 3 3 15 16 18 19 17 21 22 23 20 27 26 30 31 32 28 29 24 25 [VFD on-screen indications] 15.
14 30. Output meter Indicates the signal level or output fader position of each output channel. Which the meter is indicating is displayed on the output meter status indicator (32).
15 [Changing the input and output meter display status] Pressing the Down shift key alternately switches the input and output meter display status between the signal level and the fader position.
16 [Rear] PRE AMP OUT 1 H : Hot C : Cold E : Earth PRE AMP OUT 2 E C H E C H E E 4 4 3 3 1 2 2 1 VOL2 REMT VOL1 REMT OUT IN I/O CTRL E IN E IN M-9000 CU 40W 120V 60Hz MODE MIXER MATRIX RS-232C 34 35 36 37 38 39 40 41 • M-9000 250 W 120V 60Hz CLASS 2 WIRING NEGATIVE( – ) TERMINALS TOGETHER.
17 8.2. Optional Modules 8.2.1. D-001T (2-channel input module) Hot Cold Earth Hot Cold Earth 1 2 D-001T 1 8.2.2. T-001T (Audio output expansion module) Hot Cold Earth Hot Cold Earth 1 2 T-001T 2 1. Monaural input terminals [1, 2] Electronically-balanced 3P removable terminal blocks.
18 8.2.3. ZP-001T (Zone paging module) OUT CONTACT 3 4 1 2 OUT TEL IN IN ZP-001T 5 6 3 4 3. Telephone input terminal [TEL IN] (Modular jack) Interface connector for an analog PABX. Connect a PABX to this terminal when using the module in the ring signal mode.
19 8.2.4. C-001T (Control I/O expansion module) OUT IN 1 2 3 4 5 6 7 8 E C-001T 7 8 7. Control input terminal [IN 1, 2, 3, 4, 5, 6, 7, 8, E] 9-pin removable terminal block, 8-circuit control input terminal. Individual input functions are assigned on the front panel setting screen of the main unit.
20 9. OPERA TION To operate the unit in the matrix mode, make necessary settings in advance such as the audio input/output settings and event settings (including broadcast pattern and BGM broadcast group).
21 9.1.4. Changing the output volume Step 1. Press the Output channel selection key to turn on the Output channel selection indicator (red dot) for the output channel for which you want to change volume. Channels to be selected will change each time the Output channel selection key is pressed.
22 9.2. Zone Paging This section describes the method of initiating zone paging from a PABX (extension telephone) using the ZP- 001T Zone Paging Module. Note that the operation method differs depending on the ZP-001T's operation mode setting: paging port mode or ring signal mode.
23 9.3. Releasing Key Lock The key lock function prevents the front-mounted keys or knobs from being tampered. (Refer to p. 56 "Key Lock Function setting." ) You can temporarily operate the locked keys by entering a password to unlock them. Operation after password entry differs depending on the locked keys.
24 10. EVENT ACTIV A TION OR P AGING WHILE POWER IS OFF The 9000 Series amplifiers are designed to initiate paging by way of the ZP-001T module or activate the Event even while the power is OFF*. * The state that the front panel-mounted power switch is set to OFF position, and the power is still supplied to the unit from the AC inlet.
25 1. Design the system. 1.1. Determine the input and output equipment. 1.2. Set the input-to-output routing and priority. 2. Prepare equipment. 2.1. Mount modules. (Refer to p. 66. ) 2.2. Check to confirm that the Mode switch is set to the matrix mode.
26 12. SETTING 12.1. Setting Menu Flow Ensure that the Mode switch on the unit's rear panel is set to the MATRIX position before performing the setting.
27 12.2. Setting Keys and Knobs [Front] ON/OFF OUTPUT SEL ON/OFF OUTPUT VOLUME INPUT VOLUME POWER UTILITY ESC/BACK MEMORY ENTER PARAMETER 8 7 6 5 4 3 2 1 INPUT SELECT TOA 9000 SERIES AMPLIFIER A-9120D.
28 12.3. Basic Setting Operation 12.3.1. Entering the setting mode Holding down the Utility menu key for 2 seconds or more displays the setting menu screen. Note You cannot enter the setting mode as long as any indication is displayed in the upper line of the VFD screen.
29 12.3.3. Returning from setting mode to normal operation mode • Pressing the Escape/Back key when the setting screen is displayed returns the display to the setting start screen on the upper hierarchy level. • Pressing the Memory key at the setting menu screen saves the setting contents and returns the display to the normal operation mode.
30 UTILITY ESC/BACK MEMORY INPUT SELECT 1 – 8 Normal operation mode Setting menu screen SEL ECT I NP UT C H Input channel selection PARAMETER I N 1 – _______ Input channel name setting (p. 31) Input channel name setting Priority setting (p. 32) I N 1 – DUC K E R O FF Ducker ON/OFF setting (p.
31 12.4.2. Audio input setting items Use the Parameter setting knob for each parameter selection. I N 1 – _______ Input channel name setting The flashing portion is the cursor position for entering channel name characters.
Set the ducker function to ON or OFF. When multiple input signals are simultaneously broadcast, the ducker function automatically attenuates input signals of other channels with lower priority. The ducker function does not work among the input channels with the same priority level.
33 OUTPUT SEL OUTPUT SEL O U T P U T – S E T T I N G SEL ECT O UTPU T C H Output channel selection O U T 1 – _______ Output channel 1 name setting OUTPUT SEL O U T 2 – _______ Output channel 2 n.
34 12.6.1. Setting flow chart The screen display examples shown below may differ from actual displays. The on-screen indications shown in red here (actually shown by flashing cursors) are parameters or setting contents to be selected with the Parameter setting knob, input channel selection key or other designated keys.
• Select the output channel using the Output channel selection key. The name of selected output channel is displayed on the screen. Then confirm the selection by setting the Output channel ON/OFF key to ON (the output channel indicator, red dot on the VFD screen lights).
Trigger setting (when Event classification is set to BGM END) E V E N T 0 1 T R I G C- I N 0 1 Activating the selected Event terminates all Events for Priority-8 inputs.
37 Trigger setting (when Event classification is set to BASE) E V E N T 0 1 T R I G C- I N 0 1 Set how to activate the selected Event. • C-IN01 to C-IN04 (C-IN01 to C-IN12 when the C-001T module is used): Closing the designated control input terminal activates the Event.
38 U TILI T Y – S E T T I N G U TILI T Y C- I N Function selection (p. 40) (when the control input is selected) Control input number selection (p. 40) Control input function setting Control input function setting C - I N 0 1 EVENT N O NE Event assignment display (p.
39 U TILI L Y C- O UT Function selection (when the control output is selected) U TILI T Y P O W E R O FF Function selection (when the memory setting at power-off is selected) Control output number selection (p. 43) Memory erasure or strage setting (p.
40 12.7.2. Utility setting items • CIN: Sets the functions to be assigned to the control input terminals. Assigning a function to the control input terminal preset to "Event-Trigger" cancels the "Event-Trigger" function, being replaced with the new function.
Set the volume level (dB) to increase or decrease. 41 (When the control input function is set to VOLUP:) (When the control input function is set to VOLDOWN:) C- I N 0 1 – V O L U P C- I N 01 – V O L D O W N Assign the volume-up or volume-down function to the control input.
42 Interlock output terminal setting (MUTE) C- I N 0 1 – C O U T 0 1 This screen is displayed only when the interlock output control setting is set to ON. Set the control output terminal which is closed in synchronization with the control input of the set number.
43 (When the control output function is set to POWER:) C- O U T 0 1 P O W E R Turning on the power switch closes the control output terminal. Memory erasure or storage setting P O W E R O F F – D E L Set whether or not to save data of the volume level set in normal operation status when the AC power supply is cut off.
44 9.6 k, 19.2 k, 38.4 k, 57.6 k (default), 115.2 k Setting Range Communication speed (bps) setting . S E R I AL SPE E D = 576 [When the function is set to RS232C:] [When the function is set to MODULE.
45 Setting the Event to be recalled when power is switched on P O W E R O N – EV E NT L A S T Set the Event number to be activated when the unit's power is switched on.
46 12.8.1. Settings in adjustment mode In the adjustment mode, audio setting parameters can be set while monitoring the output sound. Input and output gain settings, input sound source equalization*, and sound equalization for individual output zones can be performed.
47 Step 8. Return to the input gain setting screen and press the Right shift key. The output channel selection and gain setting screen is displayed. Note To stop the audio output temporarily, press the output channel ON/OFF key. Step 9. Adjust the gain with the Output volume control.
48 A DJ U ST EV E N T 01 – R O U T E O N Event selection (p. 49) Input gain settings Input gain settings (p. 49) DUC K E R D E P T H – 20 Ducker attenuation level setting (p. 51) (For the channel on which the D-001T is used) B A S S + 1 2 T R E B L E – 10 BASS and TREBLE settings (p.
Rotate the Parameter setting knob to set the loudness compensation function ON/OFF. Setting ON boosts low frequencies. 49 12.8.3. Adjustment mode setting items EV E N T 01 – R O U T E O N FAULT KEYLOCK EMERGENCY 12345678 1234 5678 Event No.
Rotate the Parameter setting knob to set the cut-off frequencies. Press the Right or Left shift key to select HPF or LPF, of which parameter that flashes can be adjusted.
Set how much the input signal for the channel given lower priority than that of the currently set input channel should be attenuated. The minus figures in dB represent amount to attenuate input signals. The larger the minus figures, the larger the amount of attenuation.
52 S P E Q A L L F L A T Speaker parameter presetting Optimum equalization can be automatically set depending on the type of speaker to be used. If this function is not used or the speaker to be used is not included in a speaker list, set "SP EQ" to ALL FLAT.
53 H-1 H-1SUBWOOFER* 2 GAIN (dB) FREQ (Hz) Q GAIN (dB) FREQ (Hz) Q Settable EQ bands Settable EQ bands in the EQ setting screen in the EQ setting screen – 118 0.707 – 118 0.707 +10 125 1.8 +4 125 1.8 – 6.5 220 1.414 – 6.5 220 1.414 +1.5 5 k 0.
54 HB-1 GAIN (dB) FREQ (Hz) Q Settable EQ bands in the EQ setting screen – 40 1 – 100 1 EQ 01 EQ 02 EQ 03 EQ 04 EQ 05 EQ 06 EQ 07 EQ 08 EQ 09 (HPF) EQ 10 (LPF) FB-100 GAIN (dB) FREQ (Hz) Q Settabl.
55 FB-120* 9 GAIN (dB) FREQ (Hz) Q Settable EQ bands in the EQ setting screen – 40 2.053 – 100 1 EQ 01 EQ 02 EQ 03 EQ 04 EQ 05 EQ 06 EQ 07 EQ 08 EQ 09 (HPF) EQ 10 (LPF) * 9 FB-120 Series.
56 12.9. Key Lock Function Setting The key lock function prevents equipment malfunctions by disabling operation of each key. 12.9.1. Keys that can be locked ON/OFF OUTPUT SEL ON/OFF OUTPUT VOLUME INPU.
57 12.9.2. Key lock function setting flow chart The screen display examples shown below may differ from actual displays. The on-screen indications shown in red here (actually shown by flashing cursors) are parameters or setting contents to be selected with the Parameter setting knob, input channel selection key or other designated keys.
58 12.9.3. Key lock function setting items Lock status display (No key is locked.) (Any key except the Utility key is locked.) KE Y L O CK U N L O CK E D KE Y L O CK L O CK E D Pressing the Enter key gives access to each key lock setting screen. Set the keys to be locked on the key lock function setting screen.
59 K E Y L O CK U T I L O FF Setting key lock ON/OFF Selecting ON locks Utility key, Memory key, Enter key, Escape/Back key, and Parameter setting knob. K E Y L O CK P O W E R O FF Power switch lock ON/OFF Locks the Power switch. Setting this function disables the power switch to be turned off when the unit's power is on.
60 12.9.4. Password setting When using a password, set the password before performing lock setting for each key. Step 1. Hold down the Utility menu key for 2 seconds or more in normal operation state. The setting screen is displayed. Step 2. Select KEYLOCK with the Parameter setting knob.
61 12.9.5. Key lock setting operation Step 1. Hold down the Utility menu key for 2 seconds or more in normal operation state. The setting screen is displayed. Step 2. Select KEYLOCK with the Parameter setting knob. Step 3. Press the Right shift key. Lock status is displayed.
62 Step 1. Hold down the Utility menu key for 2 seconds or more when in normal operation mode. Step 2. Using the Parameter setting knob, select UTILITY SETTING, then press the Right shift key. Step 3. Using the Parameter setting knob or UP/Down shift key, select MEMORY, then press the Right shift key.
63 13.1.1. Audio input settings 13.1.2. Audio output settings 13.1. Default Setting T able Default 8 (7 only when ZP-001T is used) OFF (IN1 – 8) [Settings when the ZP-001T is used] Setting Item Prio.
64 13.1.4. Utility settings Default C-IN Setting Item Function Selection [When the function selection is set to C-IN] 01 NONE IN1 0.5 OFF COUT01 (When the interlock output control is ON) Control Input.
65 Default IN1 ON 0.0 dB – 20 dB 13.1.5. Adjustment mode settings [Settings when the D-001T is used] Setting Item Input Channel Selection Channel Control Channel Gain Ducker Attenuation Level 0 dB OFF OFF 01 (When EQ = ON and EQ band number = 01) 0 dB (When EQ = ON and EQ band number = 01) 1.
66 9000 series modules Model No. Module function No. of inputs Maximum mountable No. D-001T 2-channel Mic/Line input 2 4 ZP-001T Zone paging input 1 1 T-001T 2-channel output – 3 C-001T Remote control – 1 900 series modules 1 8 14.
D-001T Audio 2 inputs D-001T Audio 2 inputs T-001T Audio 2 outputs 67 Step 3. Insert the ZP-001T module(s) into the slots in order without leaving slots open in between. Note Start the insertion from Slot No. 1 when no D-001T module is used. Step 4. Insert the 900 Series input modules.
68 15.1. Control I/O T erminal Connections 15.1.1. Remote volumes 1, 2 Volume of the input or output channels can be remotely adjusted. (The REMT VOL 1 terminal is factory-preset to output 1, and the REMT VOL 2 to output 2.) Connect a 10 k Ω (linear taper) variable resistor as shown below or input the DC voltage of 0 to +10 V.
69 [Pulse trigger] Use this method to activate operations for which no definite end can be defined, such as Volume Up/Down, BGM and Base pattern activation, and BGM End.
70 15.3. RS-232C Connector Connection 9000 Series amplifier RS-232C connection (Female) PC (Male) 1 6 9 5 1 2 3 2 3 6 9 5 Straight cable RXD TXD GND TXD RXD GND Use the straight cable when connecting a PC to the unit's RS-232C connector (9P, female).
71 15.4. Removable T erminal Plug Connection Be sure to use the supplied removable terminal plugs for connections to the removable terminal blocks. Cautions • Be sure to use shielded cables for audio signal lines.
72 Use the supplied rack mounting bracket when mounting the unit in an equipment rack. Step 1. Remove four M4 x 8 screws on the sides. The removed screws are no longer used. Step 2. Attach the rack mounting bracket to the unit using the supplied four M4 x 16 rack mounting bracket mounting screws.
73 17.1. General Description The supplied CD-ROM contains the A-9000 series maintenance software, which executes the following utility programs. 17. HOW TO USE THE SUPPLIED SOFTW ARE Updating firmware Parameter file Others* Updates the firmware. 9000 to PC Stores parameters set at the unit to your PC.
74 17.2. Installing the Software Step 1. Load the supplied CD-ROM into the PC's CD-ROM drive. Step 2. Double-click the "setup_a9k.exe" icon in the software folder. Step 3. Designate the folder into which the 9000 series maintenance software is extracted, and click the "OK" button.
17.4. Setting the Communication Port and Speed Set the PC's communication port and speed according to the procedure below. Step 1. Double-click the "MaintCtrl.exe" icon to run the 9000 series maintenance software. The screen at right is displayed.
76 17.5. Updating the Firmware Our latest A-9000 firmware is made available on our product information download site (http://www.toa- products.com/international/). You can also obtain the latest version by downloading it. Step 1. Double-click the "MaintCtrl.
77 Step 5. Perform the following key operations at the unit to make the unit ready for data reception from the PC. 5-1. Turn the power switch off. 5-2. Press the Input channel 8 selection key, Escape/Back key, and Power switch at the same time. The unit is placed in standby mode for communications with the PC.
17.6. Storing or Recalling Parameters Set at the Unit You can back up the parameters set at the unit to your PC, or transfer the parameters stored in your PC to the unit. Step 1. Double-click the "MaintCtrl.exe" icon to run the 9000 series maintenance software.
79 Step 5. Select the file, then click the "Open" button. The set parameters are transferred from the unit to the PC or from the PC to the unit. Step 6. Click the "Exit" button to terminate the program after data transmission completion.
80 17.7. Monitoring the Unit's Operation Status The operation status of the unit can be monitored in real time. Step 1. Double-click the "MaintCtrl.exe" icon to run the 9000 series maintenance software. The screen at right is displayed.
81 Step 4. To stop monitoring, click the "Stop" button. Step 5. Click the "Exit" button to terminate the program. The screen returns to the initial menu screen in Step 1.
82 17.8. Activating the Control Input You can simulate the unit's control input activation through PC operation. Step 1. Double-click the "MaintCtrl.exe" icon to run the 9000 series maintenance software. The screen at right is displayed.
83 18. ERROR INDICA TIONS Possible cause and Remedy A module is inserted into a wrong slot. Check to confirm that each module is inserted into a correct slot, and correctly reinsert the module inserted into the wrong slot. (Refer to p. 66 .) There may be overload or excessive signal input.
84 19. TROUBLESHOOTING Remedy If this screw is loose, noise may be produced. Ensure that the screw is tightened. The unit is designed to digitize audio signals with an AD converter and vary the input level with a digital volume control.
85 INPUT SELECT INPUT VOLUME Vacuum Fluorescent Display 1 2 3 4 5 6 7 8 OUTPUT SEL OUTPUT VOLUME PARAMETER ESC/BACK UTILITY ENTER MEMORY ON/OFF ON/OFF POWER DIN #1 #2 ADC #1 #8 ADC #2 #7 DIN #3 #4 ADC.
86 21. SIGNAL FLOW DIAGRAM.
87 22. LEVEL DIAGRAM M-9000 A-9060DH/9120DH SLOT ADC MODULE SLOT ANALOG INPUT ADC INPUT Clipping Level Reference Level DSP Digital Domain – 10 dB ATT 0 dBFS = 1 V DAC SPEAKERS LPF VOLUME PRE AMP OUT.
88 23. SPECIFICA TIONS 23.1. M-9000 120 V AC, 60 Hz 40 W Max. 8 channels, modular construction (modules optional) Preamplifier output 1, 2: 0 dB* 1 , 600 Ω , balanced, removable terminal block (3 pi.
89 A-9060DH A-9120DH 120 V AC, 60 Hz 150 W 250 W Max. 8 channels, modular construction (modules optional) Power amplifier input 1, 2: 0 dB* 1 , 10 k Ω , RCA pin jack 0 dB* 1, 300 Ω , unbalanced, R.
90 • Accessories Power cord (2 m) ............................................. 1 Rack mounting bracket .................................... 2 Rack mounting screw (M4 x 16) ...................... 4 Blank panel .......................................
91 +24 V DC, – 24 V DC, +6 V DC 20 mA (at +24 V DC), 20 mA (at – 24 V DC), 60 mA (at +6 V DC) 2 channels, 3 k Ω (when the phantom power is ON) / 10 k Ω (phantom power is OFF), electronically-b.
92 23.3.2. T-001T +24 V DC, – 24 V DC, +6 V DC 35 mA (at +24 V DC), 35 mA (at – 24 V DC), 60 mA (at +6 V DC) 2 channels, max. +20 dB* (at 10 k Ω load), 600 Ω , electronically-balanced, removable terminal block (3 pins) 20 – 20,000 Hz +1, – 3 dB 0.
93 23.3.3. C-001T 23.3.4. ZP-001T 6 V DC 15 mA 8 channels, open voltage: 3.3 V DC, short-circuit: under 1 mA, removable terminal block (9 pins) 8 channels, open collector output, withstand voltage: 27 V DC, control current: max. 50 mA, removable terminal block (9 pins) – 10 to +40 ° C Panel: Aluminum, hair-line 35 (w) x 78 (h) x 91.
200510.
Een belangrijk punt na aankoop van elk apparaat Toa A-9120DH (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Toa A-9120DH heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Toa A-9120DH vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Toa A-9120DH leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Toa A-9120DH krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Toa A-9120DH bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Toa A-9120DH kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Toa A-9120DH . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
