Test Mode - Sony MZ-E710 Service Manual

MZ-E710
4-1. GENERAL
• When entered in the TEST MODE, this set provides the Overall
Adjustment mode which allows CD and MO discs to be auto-
matically adjusted. In the Overall Adjustment mode, the system
discriminates between CD and MO discs, performs adjustments
in sequence automatically, and displays the faulty location if
any fault is found. In the Manual mode, selected adjustments
can be performed automatically.
• The attached remote control is used to operate the TEST MODE.
Unless otherwise specified in the text, the key means that on the
remote control.
4-2. SETTING THE TEST MODE
4-2-1. How to set the TEST MODE
To set the TEST MODE, two methods are available.
1 Solder bridge and short TAP603 (TEST) on the main board.
Then turn on the power.
MAIN BOARD (SIDE A)
TAP603
SHORT: TEST MODE
OPEN: NORMAL MODE
TAP901
2 In the normal mode, operate the keys on the set and those on the
remote control as specified below:
Turn on HOLD switch on the set. Holding down
key on the set, press the keys on the remote control in the
following sequence:
t t
> > .
t t t
> .
4-2-2. Operations when the TEST MODE is set
When the TEST MODE is entered, the system switches to the dis-
play check mode within the TEST MODE. From this mode, the
other Test modes can be accessed.
When the TEST MODE is set, the LCD repeats a cycle of the fol-
lowing displays:
8
SECTION 4

TEST MODE

C610
R607
X601
TAP603
R606
FB803
C607
(STOP)
x
t t t
. > .
t
Remote control LCD
000
u
003 V1.000
• Press and hold down
key is being pressed.
4-2-3. How to release the TEST MODE
When method 1 was used:
Turn off the power and open the solder bridge on TAP603 on the
main board.
Note: The solder should be removed clean. The remaining solder
may make a short with the chassis and other part.
When method 2 was used:
Turn off the power.
Note: If electrical adjustment (see page 11) has not been finished
completely, always start in the test mode.
4-3. TEST MODE STRUCTURE
Test Mode
(Display Check Mode)
VOL + key
Manual Mode
key
x
VOL key
Overall Adjustment Mode
key
x
+ key or DISPLAY key
(Press and hold down about for more than2 sec)
Terminate key checking or open
the top panel.
F 1SHUFPGM SOUND
8
V-SUR
All on
All off
Microprocessor
version
display
to hold the current display while the
Servo Adjustment
Audio Adjustment
Power Supply Voltage Adjustment
Charge Adjustment
CD/MO Adjustment
Power Supply Voltage Adjustment
NV Initialize
(Clear the Non-Volatile memory
Key Check Mode