Processing In Abnormality; Circuit Diagrams; Explanation - Pioneer PDP-R06XE Service Manual

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7.2 EXPLANATION

7.2.1 PROCESSING IN ABNORMALITY

Power supply and DC-DC converter
A
Circuit diagram
POWER SUPPLY Unit
B
SW_REG
Fan and temperature sensor
Circuit diagram
TEMP2
SENSOR
C
FAN_VCC
(DIGITAL TUNER FAN)
Specifications for port monitoring
Port Name SD/PD Indication Assigned Pin
D
FAN_NG 1 FAN
FAN_NG 2 FAN
Abnormally high
TEMP2
temperature in the
MR
Power supply for DTB Antenna
Circuit diagram
E
R06 D-TUNER Assy
Overcurrent
ON/OFF
ANT
Detection
H : ON
Latch
L : OFF
Specifications for port monitoring
Port Name SD/PD Indication Assigned Pin
F
ANT_POW_EU DTB antenna
short-circuit
72
1
2
MR MAIN Assy
IIC Communication
Device
ASIC
DC/DC Converter
MR MAIN Assy
V+3.3V_UCOM2
PULL_UP
Drive Circuit
155 Shutdown with H
104 Shutdown with H
Shutdown when the
76
value exceeds the
predetermined value
POWER SUPPLY Unit
V+5.1V_STB
At short: L hold
IF_37 Warning with L
2
3
V+3.3V_UCOM2
PULL_UP
Active
V+3.3V_STB
ANT_POW_B
H: OFF
L: ON
Inversion
ANT_POW_EU
Observation
Active
PDP-R06XE
3
4
IIC Communication NG
3-wire serial Communication NG
MAIN_UCOM
PSW1 (L_act)
RELAY (H_act)
TEMP2
MAIN_UCOM
FAN_CONT
FAN_NG1 (H_act)
FAN_NG2 (H_act)
MR MAIN Assy
IF_UCOM MAIN_UCOM
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