Pioneer PD-D6MK2-K Service Manual page 20

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A
No. Symptoms
1 The power is not turned on. Are wires of output connector (POWER SUPPLY Unit) and CN901
2 An opening screen is not
displayed on the monitor
(The FL display lights. The
mechanism does not work.)
B
Addendum No.1
C
TE
L 13942296513
D
E
A tray cannot be opened.
3 (An opening screen is
displayed on the monitor)
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Diagnosis Contents
(DVDM Assy) disconnected or damaged ?
Check that the following voltage is output :
+ side of C739 : 3.3V
Are the signals output from IC201-pin 98 (MDATA) and pin 99 (SCLK)
on the DVDM Assy ? (in the range of 0-3V)
Are the signals input into IC2101-pin 50 (MDATA) and pin 51 (SCLK)
on the LCD Assy ? (in the range of 0-3V)
Check that the following voltage are output :
IC751-pin 1 on the DVDM Assy : 5V
Is a resonator (X202: 27MHz) on the DVDM Assy oscillating ?
• Is a signal input into IC203-pin26 (PCE#) on the DVDM Assy ?
(Is a signal "H" for 80 mS and then "L" after the power is turned
on ?)
→ Communication with flash ROM.
• Are the signals input into IC202-pin 16 (DWE#), pin 19 (DCS#)
and pin 38 (SDCLK) on the DVDM Assy ?
(Is a signal fluctuating ?)
→ Communication with SDRAM
Is a signal output from IC203-pin 28 (PRD#) on the DVDM Assy?
(Is a signal fluctuating for several hundred mS after the power is turned
on ?)
Is a signal input into IC2101-pin 67 (DVD ACK) on the LCD Assy ?
(Is a signal fluctuating ?)
→ Communication with FL Control IC
Is a signal output from IC2101-pin 30 (XREADY) on the LCD Assy ?
(Is a signal fluctuating in the range of 0-5V ?)
Are the signals output from IC2101-pin 49 (SDATA) on the LCD Assy ?
(in the range of 0-5V)
Are the signals of IC204-pin 5(SDA) and pin 6(SCL) on the DVDM Assy
fluctuating for one or two seconds after the power is turned ?
Does the voltage of CN104-pin 3 and pin 5 on the DVDM Assy change
normally ?
Pin 3 (SW2(TRIN)): Tray is fully closed: "L"
Pin 5 (SW1(TROUT)): Tray is fully opened: "L"
Is the signal input into IC101-pin 11 (TROPEN) on the DVDM Assy ?
At open: 3.3V, At close: 0V
Are the signals output from IC101-pin 1 and pin 2 (CN103-pin 1 and
pin 2) on the DVDM Assy ?
Pin 2: Approx. 6V during opening tray approx. 0V during closing tray.
Pin 1: Approx. 0V during opening tray approx. 6V during closing tray.
Are wires of CN104 and CN103 on the DVDM Assy disconnected or
damaged ?
Does the voltage of CN102-pin 1 on the DVDM Assy change to 0V by
x ao
pressing the Inside switch.
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Possible Defective Points
Connector / cable
DVDM Assy
3.3V Regulator IC (IC341)
DVDM Assy
DVD IC (IC201)
LCD Assy
UCOM (IC2101)
DVDM Assy
5V Regulator IC (IC751)
DVDM Assy
Crystal resonator (X202)
DVDM Assy
DVD IC (IC201)
Flash ROM (IC203)
SDRAM (IC202)
DVDM Assy
Flash ROM (IC203)
1 5 0 5 8 2 9 9 4
DVDM Assy
DVD IC (IC201)
LCD Assy
UCOM (IC2101)
LCD Assy
UCOM (IC2101)
DVDM Assy
DVD IC (IC201)
LCD Assy
UCOM (IC2101)
DVDM Assy
EEPROM (IC204)
LOAB Assy
Tray SW (S101)
DVDM Assy
DVD IC (IC201)
DVDM Assy
FTS Driver IC (IC101)
Connector / cable
m
Inside switch
co
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2 8 9 9