DOWNLOAD Sony DVP-K370 Service Manual ↓ Size: 12.92 MB | Pages: 85 in PDF or view online for FREE

Model
DVP-K370
Pages
85
Size
12.92 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / BRAZIL
File
dvp-k370.pdf
Date

Sony DVP-K370 Service Manual ▷ View online

6-12
2. OPERATION  OF  SELF  CHECK  MODE
The Self Check mode is the function to conduct the basic test to
the FL display and DVD panel section.
2-1. Self Check Mode Transition Processing
At the AC Power ON after IF CON (IC404) was reset, the input to
10pin (SELF CHECK) is judged and if “Low” is entered, the main
unit transits to the Self Check mode. In this port input judgment,
the result of 3-time attempts must be same (assuming that the MB-
103 board is not connected). While pressing the 
[STOP]
 key on the
main unit with the IF CON in STANDBY mode, enter 
[RETURN]
 
[DISPLAY]
 (or 
[SET UP]
) on the remote commander, and the unit
transits to the Self Check Mode. The Self Check mode terminates
when the IF CON transits to the STANDBY mode.
2-2. Operation of Auto Self Check
When the Self Check mode becomes active at the AC Power ON
or by key input, the test display of the following steps (1) to (4) is
repeated.
(1) FLD and LED all ON (for 5 seconds)
(2) MODEL display (for 2 seconds)
(3) Version display (for 2 seconds)
(4) ROM creation date display (for 2 seconds)
6-13
2-3. Each Self Check Function
Each Self Check function tests the FLD display, LED display, and
key input.
2-3-1. FLD and LED All ON
2-3-1-1. Transition Keys in Self Check Mode
[STOP]
 key and 
[OPEN/CLOSE]
 key on the main unit
[LEFT]
 key on the main unit and the remote commander
2-3-1-2. Operation and Display
In this mode, all LEDs except STANDBY LED and all segments
of FLD turn ON.
Example of FLD all ON
2-3-2. Main Unit Key Name Display and Key Code Display
2-3-2-1. Transition Keys in Self Check Mode
• Keys on main unit except keys transited in self check
2-3-2-2. Operation and Display
When a key on the main unit is pressed in the Self Check mode,
the name of that key is displayed on the FLD. Also, the key name
display and the key code display can be switched with the 
[DIS-
PLAY]
 key on the remote commander. “NOTHING” is displayed
when nothing is entered. Also, VIDEO CD, DVD, and CD seg-
ments turn on when a communication error occurred.
FLD display (at input of 
[PLAY]
 key on the main unit)
Input
IC404: Pin No. (Signal)
Voltage [V]
Pin ej
 (POWER)
Pin ef
 (O/C)
Pin eg
 (PLAY)
Pin eh
 (DISPLAY)
Pin ed
 (CURSOR)
0 – 0.2
POWER
OPEN/CLOSE
PLAY
STOP
ENTER
0.6 – 0.82
TVS
PREVIOUS
DISPLAY
DOWN
1.16 – 1.47
PREQ
PAUSE
MENU
LEFT
1.8 – 2.12
NEXT
RETURN
UP
2.48 – 2.7
TOP MENU
RIGHT
3.3
6-14
Key code display (at input of 
[PLAY]
 key, Key code: 0Ah)
At input of faulty voltage
When two keys are pressed
2-3-3. Remote Commander Key Name Display and Key
Code Display
2-3-3-1. Transition Keys in Self Check Mode
• Remote commander keys except keys transited in self check
2-3-3-2. Operation and Display
When a key on the remote commander is pressed in the Self Check
mode, the name of that key is displayed on the FLD. Also, the key
name display and the key code display can be switched with the
[DISPLAY]
 key on the remote commander. “NOTHING” is dis-
played when nothing is entered. Also, VIDEO CD, DVD, and CD
segments turn on when a communication error occurred.
Remote commander key name display (at input of 
[PAUSE]
 key)
Remote commander key code display (at input of 
[PAUSE]
 key,
Key code: 39h)
6-15
2-3-4. Communication Monitoring Display
The communication state is monitored and displayed while the
key name on the main unit and the remote commander is displayed.
When the communication to the System Controller failed, VIDEO
CD, DVD, and CD segments turn on.
Communication error display (at no key input)
Communication error display (at code display without input of
the remote commander)
2-3-5. FLD Anode Test Display and SHUTTLE Click
Operation Test
2-3-5-1. Transition Keys in Self Check Mode
[RIGHT]
 on the main unit and the remote commander
• SHUTTLE on the remote commander during Anode Test dis-
play
(This model does not provide JOG/SHUTTLE, and therefore
use another DVD remote commander having the JOG/
SHUTTLE)
2-3-5-2. Operation and Display
The Self Check mode transits to this mode when 
[RIGHT]
 key is
entered. Only the first segment of each grid of FLD turns on, and
each time the SHUTTLE is entered, the segment of each grid is
switched in order. When SHUTTLE input is clockwise, the seg-
ment switches in 1 
→ 2  → 3 direction, or counterclockwise it
switches in 3 
→ 2 → 1 direction. This tests whether each segment
turns on individually.
Display at the start of Anode Test
                
↓      (Input in CW direction)
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