Diagnosis Of Sd (Shutdown) - Pioneer PRO-141FD Service Manual

1

5.4 DIAGNOSIS OF SD (SHUTDOWN)

[1] BLOCK DIAGRAM OF THE SHUTDOWN SIGNAL
A
Note :
The figures n indicate the number of times the Blue LED
flashes when shut-down occurs in the corresponding route.
Analog Video signal
Analog Audio signal
Digital Video signal
Digital Audio signal
Synchronized signal
Data signal
B
Control signal
C
D
INPUT4
DVI-D
INPUT5
HDMI
INPUT6
HDMI
INPUT7
HDMI
E
INPUT8
HDMI
PRO-141FD ONLY
AUDIO1
L/R
(RCA)
VOL CTL
IC3101
AUDIO2
L/R
LC75411WS
(mini)
SPEAKER OUT
JA3201
L±/R± AUDIO AMP
SPEAKER
TERMINAL
IC3201
F
M61571AFP
I/O ASSY
KRP-600M ONLY
70
1
2
TMDS SW
IC5201
CXB1444R
TMDS SW
IC5501
CXB1444R
8
KRP-600M ONLY
SCL_AU
SDA_AU
from/to
MAIN IC5402
UCOM
L/R
AMP
NJM4580V
L/R HDMI_DA
SP_ALM
to
MAIN UCOM
5
2
3
FAN unit
x3
FAN unit
x2
KEY ASSY LED ASSY
KEY_AD1
KEY_AD2
I/O ASSY
ETHER
RS-232C
IR-OUT
DIN6_RCR/GY/BCB
HDMI Rx
HD6/VD6/DE6/CLK6
IC5301
X5301
SiI9125CTU
28.322MHz
X'TAL
ASS1226
SCL_HDMI
SDA_HDMI
INT_HDMI
SCDT_HDMI
RST_HDMI
I2S
IC5401 CSN/CCLK
CDT1/HDMI_DAPD
from
D/A
MAIN UCOM
AK4384ET
PRO-141FD
3
4
I/O ASSY
IC1202
IC1203
(FAN CONTROL)
SCL_D_A
D/A
PQ200WNHZ
SDA_D_A
M62334
FAN_A_ON
FAN_NG_A
IC1201
FAN_B_ON
(FAN CONTROL)
PQ200WNHZ
FAN_NG_B
SDA_TEMP
SCL_TEMP
Temp IC
Temp IC
Temp IC
TEMP_ON
IC2401/2501
RLS ASSY IR ASSY
REM_IN
POLED1
RLS
POLED2
IP controller block
IC2803
E2PROM
BR93LC46RFVM
IC2901 IC2801
Data
TXD_IP
CPU
LAN cont. RXD_IP
Address
uPD70F3719
LAN9215-MT
to/from
MD CPU ARIA
TXD_232C_MD
TXD_232C_ARIA
RXD_232C_MD
RXD_232C_ARIA
TXD_232C
232C TC74VHC
RXD_232C
Transceiver 126FTS1
IC7201
WE_MD, WE_ARIA
TXD_232C_MAIN
RXD_232C_MAIN
Repeater
38KHZ_OUT
circuit
COMP_LPF_ON
to LPF for INPUT2
DSUB_LPF_ON
to LPF for INPUT3
DC_DC_CONV.
DC_IN
IC4502
BD8606FV
INPUT1 CVBS
CVBS
LPF
Circuit
to/from
MAIN UCOM
8
COMP_LPF_ON
(from MAIN UCOM)
LPF
INPUT2
YCbCr/YPbPr
Circuit
Component
DSUB_LPF_ON
(from MAIN UCOM)
YCbCr/YPbPr
LCX14 BUFF
IC4603
LPF
RGB
INPUT3
Circuit
H/V
D-SUB
4
8
10
10
8
11
7
13
IC4604
DSUB HD/VD
VHC08
OE