Service manual
Table Of Contents
- CONTENTS
- TO SERVICE PERSONNEL
- FRONT PANELS
- REAR PANELS
- REMOTE CONTROL PANELS
- SPECIFICATIONS
- INTERNAL VIEW
- SET MENU TABLE
- SERVICE PRECAUTIONS
- DISASSEMBLY PROCEDURES
- UPDATING FIRMWARE
- SELF-DIAGNOSTIC FUNCTION
- Starting Self-Diagnostic Function
- Starting Self-Diagnostic Function in the protection cancel mode
- Canceling Self-Diagnostic Function
- Display provided when Self-Diagnostic Function started
- Display during Self-Diagnostic Function operation
- Operation procedure of Main menu and Sub-menu
- Functions in Self-Diagnostic Function mode
- Initial settings used to start Self-Diagnostic Function
- Details of Self-Diagnostic Function menu
- 1. DSP THROUGH
- 2. RAM THROUGH
- 3. PRO LOGIC / Neo:6
- 4. MIC CHECK
- 5. VFD CHECK
- 6. MANUAL TEST
- 7. RS-232C
- 8. FACTORY PRESET
- 9. AD DATA CHECK
- 10.IF STATUS (Input function status)
- 11.DOCK CHECK
- 12.XM CHECK
- 13.DAB CHECK
- 14.HDMI AUDIO
- 15.HDMI INFORMATION
- 16.HDMI SELECT
- 17.VIDEO CONVERSION
- 18.MODEL
- 19.VERSION/CHECK SUM
- 20.DATE
- 21. DSP CHECK
- DISPLAY DATA
- IC DATA
- BLOCK DIAGRAM
- PRINTED CIRCUIT BOARDS
- PIN CONNECTION DIAGRAMS
- SCHEMATIC DIAGRAMS
- REPLACEMENT PARTS LIST
- REMOTE CONTROL
- Adjusting the system parameters
YSP-500/HTY-750
37
YSP-500/HTY-750
8. FACTORY PRESET
This menu is used to reserve and inhibit initialization of
the back-up RAM.
PRESET INHIBIT (Initialization inhibited) /
RAM initialization is not executed. Select this sub-menu to protect the values set by the
user.
PRESET RESERVED (Initialization 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.
8. FACTORY PRESET
8. PRESET INHI
8. PRESET RSRV
7. RS-232C
This menu is used to check transmission of the data
and the flow port of the hardware.
With the power turned off, short between pins No. 2
(RxD) and No. 3 (TxD), and between pins No. 7 (RTS)
and No. 8 (CTS) of the RS232C terminal. (Be sure to
turn off the power when shorting the pins.)
Start self-diagnostic function and select the menu.
There are two sub-menu items.
7. RS-232C
TxD/RxD DATA
The sub-menu is used to check transmission of the test
data. “OK” appears when the data is transmitted properly
and “NG” when it is not.
In this mode, NULL command transmission is continued
after the test command is transmitted.
TxD/RxD Data
HARD FLOW
Not applied to these models.
HARD FLOW
7. TxRxData:NG
7. HardFlow:NG
RxD
RTS CTS
TxD
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