Pioneer PRA-BD11, Service Manual

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PRA-BD11
40
1 2 3 4
1 2 3 4
C
D
F
A
B
E
• Check the following in Normal Operation mode 10 seconds or more after the power is turned on.
• In addition, input a signal according to the setups for each symptom.
1
In a case where LEDs 1-3 are all unlit regardless of the existence of the AES/EBU input signal
START
• Check the logical state of TP8215. If it is L, check the mounting status of IC8202.
• Check the logical state of Pin 4 of IC8308. If it is L, check the mounting status of IC8308.
• Check the logical state of Pin 12 of IC8309. If it is L, check the mounting status of IC8309.
• Pin 7 of IC8205 is H (reset).
• Check the mounting status of IC8205.
Check the mounting and operation statuses of IC8307.
• Check the mounting and operation statuses of CN8201, R8209, TH8302, F8303, and
IC8306, in that order.
VCCINT = Pins 13, 28, 38, 66, 76, 91,118, 128, 143, 171, 186 and 196 of IC8201
VCCO = Pins 12, 26, 39, 53, 65, 78, 92, 105, 117, 130, 144, 156, 170, 184,
197 and 208 of IC8201
Check the mounting and operation statuses of F8202.
Check the mounting and operation statuses of F8201.
Check +2.5 V
power supply
TP8482=
+2.5V
+3.3V
?
+2.5V
?
Check VCCO voltage of IC8201
Check the mounting status
of IC8201.
Check VCCINT voltage of IC8201
If there is no problem in mounting status, IC8201 may be in failure.
IC8201
pin 106
IC8205
pin 10
D8304
L
H
L
H
Unlit
Lit
No
Yes
No
Yes
No
Yes