Yamaha Tyros 3 Service Manual

							81 Tyros3
Test 1
Function: Version indication
Description:
Displays version of program/data.
Use the TAB [
#]/[#] keys to switch between plural pages.
Displayed Message:
 Selected screen
  Page 1 (Example)
 Page 2
Supplement:
Indicates model name (destination) and program/data versions.
0.00 will be shown if the version is not recognized correctly.

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Test 2
Function: Simplifi ed check of ROM
Description:
Executes Read test (checksum test) of ROM.
Executes Write pin check of Program Flash ROM as well.
Displayed Message:
 Selected screen
  In case of OK
  In case of NG (Example)
Supplement:
In case of NG, name of the ROM of which NG is detected 
will be shown.
No Card will be shown if SUB PROG is not detected.
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Error IndicationsCircuit 
BoardLocationName in Circuit Diagram
MAIN PROG ROM H/L  NG
DMIC10
IC11MAIN PROG-L 256 M FLASH
MAIN PROG-H 256 M FLASH
MAIN PROG WR  NG
MAIN DATA ROM  NG DM IC14 DATA ROM 64 M
SUB PROG ROM  NG
DM IC514 SUB BOOT ROM 8 M
SUB PROG ROM  No Card 
						

							Tyros3
82
Test 3
Function: Simplifi ed check of RAM
Description:
Executes Read/Write test (connection check) of RAM.
Displayed Message:
 Selected screen
  In case of OK
  In case of NG
Supplement:
Location of NG will be shown in case of NG. 
If sound board is not recognized, No Card will be shown 
for SUB SDRAM.
Te s t  4
Function: Simplifi ed check of Backup ROM
Description:
Executes Read/Write test (connection check) of Backup Flash 
ROM. It will take about 9 seconds for the check.
* The check cannot be aborted until OK/NG result is indicated.
Displayed Message:
 Selected screen
  In case of OK
  In case of NG
Supplement:
The check cannot be aborted until OK/NG result is indicated.
Original data will be written back after the test is executed. 
Do not turn off the power during checking or the data will be 
lost.
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Error IndicationsCircuit 
BoardLocationName in Circuit Diagram
Main SDRAM  NG DMIC12
IC13SDRAM 256 M  
SDRAM 256 M
Sub SDRAM  NG
DM IC513 MAIN RAM 128 M SDRAM
Sub SDRAM  No Card
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Error IndicationsCircuit 
BoardLocationName in Circuit Diagram
NG DM IC15 BACKUP 64 M FLASH 
						

							83 Tyros3
Test 5
Function: Simplifi ed check of Wave ROM
Description:
Executes Read test (checksum test) of Wave ROM.
Displayed Message:
 Selected screen
  In case of OK
  In case of NG
Test 6
Function: Simplifi ed check of Wave RAM (SDRAM)
Description:
Executes simplifi ed address checksum test of SDRAM for wave.
Displayed Message:
 Selected screen
  In case of OK
  In case of NG
In case no sound board is recognized
Supplement:
Check from TG1 " SWP51B Master (DM: IC505), 
TG2 " SWP51B Slave (DM: IC506).
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Error IndicationsCircuit 
BoardLocationName in Circuit Diagram
NG DMIC800
IC801
IC802
IC803WAVE ROM L1 512 M MASK
WAVE ROM L2 512 M MASK
WAVE ROM H1 512 M MASK
WAVE ROM H2 512 M MASK
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Error IndicationsCircuit 
BoardLocationName in Circuit Diagram
Wave SDRAM(TG1) NG
DMIC511
IC512
SAMPLING RAM-L 16 M SDRAM
SAMPLING RAM-H 16 M SDRAMWave SDRAM(TG2) NG
Wave SDRAM(TG1) No Card
Wave SDRAM(TG2) No Card 
						

							Tyros3
84
Test 7
Function: Simplifi ed check of Wave RAM (DIMM)
Description:
Executes simplifi ed address checksum test of DIMM for 
wave. Indicates DIMM size as well.
Displayed Message:
 Selected screen
  In case of OK (Indicates DIMM size in MB)
  In case of NG (Indicates DIMM size in MB)
Supplement:
Check from TG1 " SWP51B Master (DM: IC505), 
TG2 " SWP51B Slave (DM: IC506).
OK will be shown if DIMM connection is confi rmed. Visually 
check DIMM size.
Te s t  8
Function: Simplifi ed check of Effect RAM
Description:
Checks RAM that works for Effect.
Displayed Message:
 Selected screen
  In case of OK
  In case of NG
Supplement:
TG1 indicates Effect RAM of SWP51B Master (DM: IC505) 
and TG2 indicates Effect RAM of SWP51B Slave (DM: IC506).
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Error IndicationsCircuit 
BoardLocationName in Circuit Diagram
TG1 NG DM IC508
WORK RAM 64 M SDRAMTG2 NG DM IC509WORK RAM 64 M SDRAM
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							85 Tyros3
Test 9
Function: Sound check of the Tone Generator 1
Description:
Sequentially outputs sounds starting from lower keys by 
switching the channel of the sound source at the SWP51B 
Master side for checking sound generator and sound. Check 
that there is no abnormal sounds or noise.
Displayed Message:
Selected screen
When a sound is being produced.
  When the checking is fi nished.
Supplement:
Sound producing keyboard range is 32 notes from C2 to G4. 
Number of sounds is 64.
Test 10
Function: Sound check of the Tone Generator 2
Description:
Sequentially outputs sounds starting from lower keys by 
switching the channel of the sound source at the SWP51B 
Slave side for checking sound generator and sound. Check 
that there is no abnormal sounds or noise.
Displayed Message:
 Selected screen
  When a sound is being produced.
  When the checking is fi nished.
Supplement:
Sound producing keyboard range is 32 notes from C2 to G4. 
Number of sounds is 64.
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Indications during ExecutionCircuit 
BoardLocationName in Circuit Diagram
TG1 Check -- DM IC505
SWP51B MASTERTG2 Check -- DM IC506SWP51B SLAVE

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Indications during ExecutionCircuit 
BoardLocationName in Circuit Diagram
TG1 Check -- DM IC505
SWP51B MASTERTG2 Check -- DM IC506SWP51B SLAVE 
						

							Tyros3
86
Test 11
Function: Pitch check
Description:
Set the [MASTER VOLUME] to the maximum level.
Connect a frequency counter to the [PHONES] jack. (Either L or R)
(Load should be 33 Ω. (30 Ω is acceptable as well: -0.6 dB))
Confi rm that the frequency counter shows 441.43 +/- 0.22 Hz.
 ¡Amount of volume decay:
Set the [MASTER VOLUME] to the minimum level.
Connect a level meter (JIS-C curve) to the L/R of 
[PHONES] terminal.
(Load should be 33 Ω. (30 Ω is acceptable as well: -0.6 dB))
• PHONES L:  -60.0 dBu or less
• PHONES R: -60.0 dBu or less
Displayed Message:
Selected screen
When a sound is being produced.
Supplement: 
Sound is stopped when the test item is quit.
Test 12
Function
Output Level R check
Description:
Connect a level meter (JIS-C curve) to each jack. ([PHONES] 
L, R,  [LINE OUT MAIN] L/L+R, R,  [AUX OUT/LOOP SEND] 
L/L+R, R,  [TO SUB WOOFER R] L, R)
Set the [MASTER VOLUME] to the maximum level and 
check the output level of the R channel.
[PHONES] L, R 
(33 Ω load (30 Ω is acceptable as well: -0.6 dB))
• PHONES L:  -55.0 dBu or less
• PHONES R: +1.0±2 dBu
[LINE OUT MAIN] L/L+R, R 
(10 k Ω load (2 monaural jacks used simultaneously))
• LINE OUT MAIN L/L+R:  -75.0 dBu or less
• LINE OUT MAIN R:  +9.5±2 dBu
[AUX OUT/LOOP SEND] L/L+R, R 
(10 k Ω load (2 monaural jacks used simultaneously))
• AUX OUT/LOOP SEND L/L+R:  -75.0 dBu or less
• AUX OUT/LOOP SEND R:  +5.0±2 dBu
[TO SUB WOOFER R] L, R 
(470 Ω load (L side: between 6P–3P, R side: between 
5P–3P, GND: 3P))
• TO SUB WOOFER R  L:  -65.0 dBu or less
• TO SUB WOOFER R  R:  +5.5±2 dBu
Disconnect the headphone and connect the optional speakers 
to the left and right speaker terminals.
Confi rm that the sound comes out only right speaker.
Displayed Message:
 Selected screen
  When a sound is being produced.
Supplement:
Sound is stopped when the test item is quit.


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							87 Tyros3
Test 13
Function:  Output Level L check
Description:
Connect a level meter (JIS-C curve) to each jack. ([PHONES] 
L, R,  [LINE OUT MAIN] L/L+R, R,  [AUX OUT/LOOP 
SEND] L/L+R, R,  [TO SUB WOOFER R] L, R)
Set the [MASTER VOLUME] to the maximum level and 
check the output level of the L channel.
[PHONES] L, R 
(33 Ω load (30 Ω is acceptable as well: -0.6 dB))
• PHONES L:  +1.0±2 dBu
• PHONES R: -55.0 dBu or less
[LINE OUT MAIN] L/L+R, R 
(10 k Ω load (2 monaural jacks used simultaneously))
• LINE OUT MAIN L/L+R:  +9.5±2 dBu
• LINE OUT MAIN R:  -75.0 dBu or less
[AUX OUT/LOOP SEND] L/L+R, R 
(10 k Ω load (2 monaural jacks used simultaneously))
• AUX OUT/LOOP SEND L/L+R:  +5.0±2 dBu
• AUX OUT/LOOP SEND R:  -75.0 dBu or less
[TO SUB WOOFER R] L, R 
(470 Ω load (L side: between 6P–3P, R side: between 
5P–3P, GND: 3P))
• TO SUB WOOFER R  L:  +5.5±2 dBu
• TO SUB WOOFER R  R:  -65.0 dBu or less
Disconnect the headphone and connect the optional speakers 
to the left and right speaker terminals.
Confi rm that the sound comes out only left speaker.
Displayed Message:
 Selected screen
  When a sound is being produced.
Supplement:
Sound is stopped when the test item is quit.
Test 14
Function:  Output Level Sub-1 check
Description:
Set the [MASTER VOLUME] to the maximum level.
Connect a level meter (JIS-C curve) to the SUB1/
SUB2 of [LINE OUT] terminal. (Load should be 10 k Ω)
• LINE OUT SUB1:  +3.0±2 dBu
• LINE OUT SUB2:  -75.0 dBu or less
Displayed Message:
 Selected screen
  When a sound is being produced.
Supplement:
Sound is stopped when the test item is quit.
Test 15
Function:  Output Level Sub-2 check
Description:
Set the [MASTER VOLUME] to the maximum level.
Connect a level meter (JIS-C curve) to the SUB1/
SUB2 of [LINE OUT] terminal. (Load should be 10 k Ω.)
• LINE OUT SUB1:  -75.0 dBu or less
• LINE OUT SUB2:  +3.0±2 dBu
Displayed Message:
 Selected screen

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							Tyros3
88
  When a sound is being produced.
Supplement:
Sound is stopped when the test item is quit.
Noise Level:
Set the [MASTER VOLUME] to the maximum level.
Connect a level meter to the L/R of [PHONES] terminal.
Load should be 33 Ω. (30 Ω is acceptable as well: -0.6 dB)
L side:  -80.0 dBu or less
R side:  -80.0 dBu or less
Set the [MASTER VOLUME] to the maximum level.
Connect a level meter to the MAIN L/L+R, R of [LINE OUT] 
terminal.
(Use two monaural jacks simultaneously)
Load should be 10 k Ω.
L side:  -75.0 dBu or less
R side:  -75.0 dBu or less
Set the [MASTER VOLUME] to the maximum level.
Connect a level meter to the [WOOFER R] terminal.
(L side: between 6P-3P, R side: between 5P-3P, GND: 3P)
Load should be 470 Ω.
L side:  -80.0 dBu or less
R side:  -80.0 dBu or less
Set the [MASTER VOLUME] to the maximum level.
Connect a level meter to the [LINE OUT SUB1] terminal.
Load should be 10 k Ω.
SUB1 side:  -80.0 dBu or less
Set the [MASTER VOLUME] to the maximum level.
Connect a level meter to the [LINE OUT SUB2] terminal.
Load should be 10 k Ω.
SUB2 side:  -80.0 dBu or less
Test 16
Function:  EQ (Low) frequency check
Description:
The sine wave of about 65.4 Hz (C1) is output from the [LINE 
OUT] jacks (MAIN L/L+R, MAIN, R, SUB1, SUB2).
Displayed Message:
 Selected screen
  When a sound is being produced.
Supplement:
Sound is stopped when the test item is quit.
Test 17
Function:  EQ (Mid) frequency check 
Description:
The sine wave of about 523 Hz (C4) is output from the [LINE 
OUT] jacks (MAIN L/L+R, MAIN, R, SUB1, SUB2).
Displayed Message:
 Selected screen
  When a sound is being produced.

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							89 Tyros3
Supplement:
Sound is stopped when the test item is quit.
Test 18
Function:  EQ (High) frequency check
Description:
The sine wave of about 4,186 Hz (C7) is output from the 
[LINE OUT] jacks (MAIN L/L+R, MAIN, R, SUB1, SUB2).
Displayed Message:
 Selected screen
  When a sound is being produced.
Supplement:
Sound is stopped when the test item is quit.
Test 19
Function:  SP MUTE check
Description:
When the test is executed, the sine wave of about 1,046 Hz 
(C5) is output from the [LINE OUT] jacks (MAIN L/L+R, 
MAIN, R, SUB1, SUB2).
Confirm that the ON and OFF of SP MUTE can be 
toggled by pressing the TAB [
#] or the TAB [#] button.
Displayed Message:
 Selected screen
  During MUTE OFF
  During MUTE ON
Supplement:
SP MUTE (sound) shall not be controlled with connection/
disconnection of headphones during this test.
Sound is stopped when the test item is quit.
Test 20
Function: MUTE check
Description:
When the test is executed, the sine wave of about 1,046 Hz 
(C5) is output from the [LINE OUT] jacks (MAIN L/L+R, 
MAIN, R, SUB1, SUB2).
Confi rm that the ON and OFF of MUTE can be toggled 
by pressing the TAB [
#] or the TAB [#] button.
Displayed Message:
 Selected screen

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							Tyros3
90
  During MUTE OFF
  During MUTE ON
Supplement:
MUTE (sound) shall not be controlled with connection/
disconnection of headphones during this test.
Sound is stopped when the test item is quit.
Test 21
Function:  MIC L check
Description:
Check output sound with MIC L input. Check that there is no 
abnormal sounds or noise.
The [MASTER VOLUME] can be set to any level.
Set the [INPUT VOLUME] to the maximum level.
Set the [LINE IN/MIC TRIM] volume to the maximum level
Connect a level meter (JIS-C curve) to the L/L+R of [AUX 
OUT/LOOP SEND] terminal. (Load should be 10 k Ω.)
Input signal of -45 dBu (1 kHz sine wave) from an oscillator 
to the L/L+R of [LINE IN/MIC] terminal and measure at 
output terminals.
• AUX OUT/LOOP SEND L/L+R: +13.0±2 dBu
¡Amount of TRIM volume decay:
Change the [LINE IN/MIC TRIM] volume to the minimum 
level with the other setups remained as above. (Leave the 
[INPUT VOLUME] at the maximum position.)
Measure output terminals.
• AUX OUT/LOOP SEND L/L+R: -34.0±2 dBu
¡Amount of volume decay:
Change the [INPUT VOLUME] to the minimum level with 
the other setups remained as above.
(Leave the [LINE IN/MIC TRIM] volume at the minimum 
level.)
Measure output terminals.
• AUX OUT/LOOP SEND L/L+R: -70.0 dBu or less
Check also if connection and disconnection of MIC is 
detected by inserting and removing MIC.
Displayed Message:
 Selected screen
  When MIC L is unconnected
  When MIC L is connected
Supplement:
[SIGNAL] LED do not light up.
Test 22
Function:  MIC R check
Description:
Check output sound with MIC R input. Check also that there 
is no abnormal sounds or noise.
The [MASTER VOLUME] can be set to any level.
Set the [INPUT VOLUME] to the maximum level.
Set the [LINE IN/MIC TRIM] VOLUME to the maximum 
level.
Connect a level meter (JIS-C curve) to the R of [AUX OUT/
LOOP SEND] terminal. (Load should be 10 k Ω.)
Input signal of -45 dBu (1 kHz sine wave) from an oscillator 
to the R of [LINE IN/MIC] terminal and measure at output 
terminals.
• AUX OUT/LOOP SEND R: +13.0±2 dBu

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