Pioneer PDP-5016HD Service Manual page 147

5
QQ
3 7 63 1515 0
19) No Operating of a Key
Check the Solder state and pin of Connector JP41
Check the Solder state in SUB Key Assy.
Check the I2C between Micom and EEPROM.
Check the Flash Memory or SDRAM.
TE
L 13942296513
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Control key is O.K. but
the Function does not
operate.
OK
Refer to the lower
Check the signal level
Key1,Key2(AE10, AF10)
of U5
OK
Check the Micom part
(IIC Comunication, other
Control line) of U5
OK
Exchange the Main Assy
x ao
y
i
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6
8
table
NG
Check Control SUB Key Assy
And power line
NG
Exchange the IC(U5)
Q Q
3 6 7 1 3
POWER(0.265~0.445V)
MEMU(0.850~1.030V)
AV(1.34~1.54V)
SELECT(1.98~2.17V)
CH+(0.280~0.460V)
CH-(0.850~1.020V)
VOL+(1.35~1.53V)
VOL-(1.97~2.16V)
u163
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PDP-5016HD
6
7
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
7
8
9 9
A
B
C
2 8 9 9
D
E
F
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