Read Sony PCM-D50 Service Manual online
PCM-D50
16
SERVICE MODE
The SERVICE MODE is entered and the details of the Service
Menu are as follows:
1
Version
Function: To check the version of the relevant module.
PCM-D50: Destination (JP, US, CN, CE)
Boot:
Boot loader F/W version
ARM:
F/W version for CPU (ARM section)
DSP:
F/W version for CPU (DSP section)
Date:
Date and time of build
2
Key Check
Function: To allow you to check inputs by pressing the cor-
responding keys.
Input checks as well as INT check. (KEY confi rmation checks
and KEY_WAKE interrupt check)
Target keys to be inputted:
STOP, PAUSE, FR, MENU/FOLDER, A-B,
LIGHT, DISPLAY, FF, DIVIDE,
PLAY, REC,
MIC/LINEIN, LIMITER, LCF, DPC, HOLD,
POWERSW, and MICLR
When an input has been determined, the backlight is illumi-
nated for 0.5s.
When all the inputs have been confi rmed at least once, OK is
displayed on the LCD and the LED (GREEN) is lit.
3
Key Chk+Format
Function: To allow you to check key inputs by pressing the cor-
responding keys.
Input checks as well as INT check. (KEY confi rmation checks
and KEY_WAKE interrupt check)
Target keys to be inputted:
STOP, PAUSE, FR, MENU/FOLDER, A-B,
LIGHT, DISPLAY, FF, DIVIDE,
PLAY, REC,
MIC/LINEIN, LIMITER, LCF, DPC, HOLD
POWERSW, and MICLR
When an input has been determined, the backlight is illumi-
nated for 0.5s.
When all the inputs have been confi rmed at least once, NAND
is formatted (all the issues are deleted) and the MENU settings
are defaulted. (However, LCD Contrast is held.)
When the formatting has been normally completed, the system
is restarted (rebooted).
4
DSP Loop
Function: To perform a DSP LOOP BACK.
[PLAY]:
Starts Loop Back
[STOP]:
Stops Loop Back
[MIC/LINEIN]: As per the set control.
[LIMITER]:
As per the set control.
[LCF]:
As per the set control.
[DPC]:
Switches HP Mute
(OFF: Mute OFF; ON: Mute ON)
[HOLD]:
Switches LINE Mute
(OFF: Mute OFF; ON: Mute ON)
Input:
INTMIC, EXTMIC, LINEIN
Output:
HPOUT, LINEO,
5
Lcd Contrast
Function: To adjust the contrast of the LCD.
The default (initial value) is taken as Value=XX (XXh).
This represents 2-byte transmit data after 81h (V5 Output Volt-
age Set) of serial communication data to the LCD module. (UI
value: This is a value displayed in the TEST MODE.)
Initial value
UI value
00 01 02 ... 10 ... 19 20
LCD[h]
20 21 22 ... 27 ... 24 35
(Each value is provisional.)
6
Cluster Num
Function: For design. Read the cluster number from memory.
7
RTC Interrupt
Function: To perform a RTC self test.
The count is displayed at every second.
8
Battery
Function: To display the current value of Battery A/D and
whether it can be detected by the 5T735 detection
register.
PCM-D50 : JP Boot : 11
ARM 1. 0. 00
DSP 1. 0. 00
Sep 18 2007 08 : 41 : 38
<KEY CHECK>
KEY : - -
REMAIN :
18
Display the key confirmed.
Count down the number of
the remaining keys.
Count down the number of
the remaining keys.
<KEY CHECK>
KEY : - -
REMAIN :
18
Display the key confirmed.
Count down the number of
the remaining keys.
Count down the number of
the remaining keys.
<DSP Loop>PLAY
Input->Output
HPMUTE : OFF LINEMUTE : OFF
LIMITER : OFF
LCF : OFF
<Lcd Contrast>
Value : 07
[FF] + [FR] -
Display the current UI value.
<RTC Int>
01s
RTC Int OK
<Battery>
A/D : 68h
DETECT : OK
[STOP/MENU] : RET
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