Sony Walkman MZ-E300 Service Manual page 8

MZ-E300
3. Each test item is assigned with a three-digit item number. The
100th place is a major item, 10th place is a middle item, and unit
place is a minor item.
+
key : 100th place of mode number
Change Major
Item
key : 100th place of mode number
key key
> N x
+
key : 10th place of mode number
Change Middle
Item
key : 10th place of mode number
key key
> N x
> N
Change Minor
Item
.
Change Adjustment
Value
Write Adjustment
Value
key : When adjusted value is changed :
X
Adjusted value is written.
When adjusted value is not changed :
That item is adjusted automatically.
4. During each test mode, the display is changed from one to
another each time DISPLAY key is pressed (Remote control
only).
Address Value & Adjustment Value
LCD display
011 XXXSXX
Block Error Value & Adjustment Value
LCD display
011 XX BXX
ADIP Error Value & Adjustment Value
LCD display
011 XX AXX
Jitter Value & Adjustment Value
LCD display
011 XXXJXX
Power Adjustment Value
LCD display
731 XX VXX
After the voltage indicator appears,
press the DISPLAY key twice.
Memory Monitor Mode
Note: In the Power mode, the item title display is only displayed.
5. To terminate the Manual mode and return to the TEST MODE,
press x key.
8
increase
decrease
increase
decrease
key : Unit place of mode number
increase
key : Unit place of mode number
decrease
+
key : Up
key : Down
* Functions are displayed,
but cannot be used via
this unit.
XXX: Each Value
XX: Adjustment Value
for Item number
4-5. OVERALL ADJUSTMENT MODE
4-5-1. Outline of the function
This mode is designed to adjust the servo system automatically by
going through all the adjustment items.
Usually, this mode is used to perform automatic adjustments when
servicing the set.
4-6. NV RESET
Power: Connect the battery terminals to a stable DC 1.5V power
supply, or insert fresh batteries (size "AA", IEC "LR6").
Two different methods apply for NV reset, depending on whether
the main unit or a remote control unit is used.
NV reset via main unit
1. Enter test mode.
2. Use the – key or the . key to set the device to Overall
Adjustment mode.
ASS
3. Press the PLAY MODE/DISPLAY key. "CL" starts to flash.
AdJ cL
4. Press the PLAY MODE/DISPLAY key once more. "CL" stops
flashing and remains lit, thus concluding NV reset.
AdJ cL
5. Press the x key to return to test mode.
NV reset via remote control
1. Set the TEST MODE.
2. Set the Manual mode and set the item No. 021, Reset NV.
LCD display
021 AAAS CC
3. Press X key on the remote control.
LCD display
021 AAAS CC
Flash CC
4. Press X key on the remote control again.
LCD display
021 AAAS CC
5. Press x key to terminate the Manual mode and return to the
TEST MODE.