Pioneer krp-m01, Service Manual

Page: 66 / 131

66
KRP-M01
1 2 3 4
A
B
C
D
E
F
1 2 3 4
[2] PROCESSING IN ABNORMALITY
Specifications for port monitorin g
Port Name SD/PD Indication Determination Condition
RST2 ASIC power
(M-DCDC)
Shutdown occurs when the
signal is "L."
for 5 sec after PS
W 1 is O N .
or
for 2 sec while the unit is
O
N .
RST3 –– ––
Monitorin g conditions
• Panel screen O N
(RST4 = H and PS W 1 = H)
• W hile awaiting restoration
of RST2 (RST2 = L)
Operation
Shutdown occurs immediately
Blue LED flashes 13 times
PD_TRG V CC power
(MR-P W R)
Shutdown occurs when the
signal is continuously "L"
for 30msec * 3 times after
RELAY2 is O
N .
• RELAY2 = O N
• Monitor it after 3 sec.
Power-down occurs immediately
Red LED flashes once
Excepting passive standby
If "RST3 = H" (AC_OFF) is detected under the
monitoring conditions, a power-off process starts.
Monitoring of the RST3 port is continued, and
monitoring of other ports is interrupted.
Communication is controlled only by the IF
microcomputer. The port outputs are set as specified.
If the signal at the RST3 port continues to be H after
30 mS of waiting, monitoring is continued.
If RST3 is L, a restoration process starts according to
the latest power-on/-off status.
RST4 MAI N power
(RELAY)
Shutdown occurs if the
signal is "L."
for 5 sec after RELAY2 is
O
N .
or
for 2 sec while the unit is
O
N or in Functional STB.
RELAY2 = O N (High)
Shutdown occurs immediately
Blue LED flashes 13 times
Power supply and DC-DC converter
S W _REG
Inverter
A N D
A N D
RST4
RST3
RST2
ACTI V E
AC shutdown
detection
V oltage
detection
V oltage
detection
PD_TRG
detection
Startup
Main ucom
PD_TRG
MAI N _UCOM IF_UCOM
RELAY2
POWER SUPPLY Unit
MAIN BLOCK Assy
Circuit confi g uration
V +3_4 V _D3
V +3_4 V _D
V +3_4 V _ACT2
V +17 V /12 V /6_5 V
AC_DET
V +12 V
PULL_D
PULL_U
V +3_4 V _ACT2
Inverter
V +3_4 V _ACT2
V +6_5 V
PULL_D
PULL_U
V +5_1 V
PULL_D
PULL_U