Yamaha YSP-3000 - Self diagnosis and details – Factory reset – Power and Amplifier schematic

YSP-30D - HTY-7030 - YSP-3000 - Yamaha DIGITAL SOUND PROJECTOR - Factory reset – Power and Amplifier schematic - Self diagnosis function details

This unit has self-diagnostic functions that are intended for inspection, measurement and location of faulty point.
There are 21 main menu items, each of which has submenu items.  Listed in the table below are main menu items and submenu items.
Note that not all menu items listed will apply to the models covered here.

Click on the pictures to magnify

Starting Self-Diagnostic Function
To activate the self-diagnostic function, press the “STANDBY/ON” key of the remote control while pressing the [Vol+ & Vol --]keys of the main unit as shown below at the same time.

Starting Self-Diagnostic Function in the protection cancel mode
If the protection function works and causes hindrance to trouble diagnostic, cancel the protection function as described below, and it will be possible to enter the self-diagnostic function mode.
Press the “STANDBY/ON” key of the remote control while simultaneously pressing those two keys indicated in the
figure above. At this time, keep pressing those two keys [Vol + & Vol --] for 3 seconds or longer.
In this mode, the “SLEEP” segment of the FL display of the main unit flashes to indicate that the mode is self-diagnostic function mode with the protection functions disabled. CAUTION: Using this product with the protection function disabled may cause damage to itself. Use special care for this point when using this mode.

Canceling Self-Diagnostic Function 

[1] Before canceling self-diagnostic function, execute setting for PRESET of main menu No.8 (Memory initialization inhibited or Memory initialized).

* In order to keep the user memory stored, be sure to select PRESET INHIBIT (Memory initialization inhibited). Any protection history will remain in memory.

[2] Turn off the power by pressing the “STANDBY/ON” key of the main unit or the “STANDBY/ON” key of the remote control.

Display provided when Self-Diagnostic Function started

When the monitor is connected, the list of main menu items is displayed of the monitor screen as shown below.

(This list remains on display until the self diagnostic function is cancelled.)

DIAGNOSTIC MENU

1.DSP THR

2.RAM THR

3.PRO LOGIC

4.MIC CHECK

5.VFD CHECK

6.MAN’ LTEST

7.RS232C

8.PRESET

9.AD CHECK

10.IF STATUS

11.DOCK TEST

12.XM TEST

13.DAB TEST

14‾16.HDMI

17.VIDEO CONV

18.MODEL

19.VER/SUM

20.DATE

21.DSP CHECK

The FL display of the main unit displays the protection function history data and the version (1 alphabet) and the self-diagnostic function menu [sub-menu (THR ALL) of main menu No.1 DSP THROUGH] a few seconds later.

The Power and Amplifier Schematic

Details of Self-Diagnostic Function menu

DSP THROUGH The signal is not changed into beam and output from the channel specified by the sub-menu.  When 2CH signals are input, they are distributed as follows at DSP1 (IC5 DSP P.C.B.).
L CH ..... FRONT L, SURROUND L, CENTER, LFE
R CH .... FRONT R, SURROUND R
Delay of each channel processed at DSP1 (IC5 DSP P.C.B.) is invalid.

DSP THR ALL
• All outputs (FRONT L/R, CENTER, SURROUND L/R, LFE) are provided.

DSP THR FRONT L
• FRONT L output.
• LFE is output through FRONT L only but not in digital full bit.

DSP THR CENTER
• CENTER output.
• LFE is output through CENTER only but not in digital full bit.

DSP THR FRONT R
• FRONT R output.
• LFE is output through FRONT R only but not in digital full bit.

DSP THR SURROUND R
• SURROUND R output.
• LFE is output through SURROUND R only but not in digital full bit.

DSP THR SURROUND L
• SURROUND L output.
• LFE is output through SURROUND L only but not in digital full bit.

DSP THR LFE (SUBWOOFER OUT)
• LFE output.

RAM THROUGH The signal is not changed into beam and output from the channel specified by the sub-menu.  When 2CH signals are input, they are distributed as follows at DSP1 (IC5 DSP P.C.B.).
L CH ..... FRONT L, SURROUND L, CENTER, LFE
R CH .... FRONT R, SURROUND R
Delay of each channel processed at DSP1 (IC5 DSP P.C.B.) is valid.

RAM THR ALL
• All outputs (FRONT L/R, CENTER, SURROUND L/R, LFE) are provided.

RAM THR FRONT L
• FRONT L output.
• LFE is output through FRONT L only but not in digital full bit.

RAM THR CENTER
• CENTER output.
• LFE is output through CENTER only but not in digital full bit.

RAM THR FRONT R
• FRONT R output.
• LFE is output through FRONT R only but not in digital full bit.

RAM THR SURROUND R
• SURROUND R output.
• LFE is output through SURROUND R only but not in digital full bit.

RAM THR SURROUND L
• SURROUND L output.
• LFE is output through SURROUND L only but not in digital full bit.

RAM THR LFE (SUBWOOFER OUT)
• LFE output.

3. PRO LOGIC / Neo:6 PRO LOGIC I, II, Neo:6 can be selected from the submenu items.

4. MIC CHECK The signal inputted through the microphone is output via AD-DA at the output terminal of the subwoofer.

5. VFD CHECK Use this program to check the FL display section and video control section. When checking the video control section, prepare a monitor and video pin cable and connect them.
Selection of the FL display section or video control section varies according to the submenu operation.

6. MANUAL TEST The noise generator with a built-in DSP outputs the test noise through the channels specified by the submenu.  The noise frequency is 30 to 80Hz for LFE but 500 to 2kHz for others.

8. FACTORY PRESET This menu is used to reserve and inhibit initialization of the back-up RAM.

PRESET INHIBIT (Initialization inhibited) / PRESET INHIBIT
RAM initialization is not executed. Select this sub-menu to protect the values set by the user.

PRESET RESERVED (Initialization reserved) / PRESET RESERVED
Initialization of the back-up RAM is reserved. (Actually, initialization is executed the next time that the power is turned on.) Select this sub-menu to reset to the original factory settings or to reset the RAM. Any protection history will be cleared.

9. AD DATA CHECK This menu is used to display the A/D conversion value of the main CPU which detects panel keys of the main unit and protection functions in % using the sub-menu.  During signal processing, the condition before
execution is maintained.

[The figures in the diagram are given as reference only.]

PS (Power supply voltage protection detection)
* When the value of PS, P2 and P3 is not at the normal value level, the protection function works and the power is turned off.
(Reference voltage: 3.3V=100%)

PS (PS1) Voltage detects: -24 V, +5.3X (U, C, B models), +5 V, +5I (U, C, A, B models)
Normal value: 48 to 84 (1.61 to 2.78 V)
P2 (PS2) Voltage detects: +12 V, T+10 (U, C, K, A, G, E, L, V models) , D+12
Normal value: 59 to 82 (1.96 to 2.71 V)
P3 (PS3) Voltage detects: +3.3 V
Normal value: 61 to 91 (2.03 to 3.0 V)
* The normal value has been revised from 3.3V (measured value) to 2.5V (indicated value) by the voltage dividing resistor.

K0/K1 (Panel key of main unit)
A/D of the key fails to function properly when the standard value is deviated by ±2%. In this case, check the constant of partial pressure resistor, solder condition, etc.
(Reference voltage: 3.3V=100%)