Pioneer CX-692 Manuel d'entretien - Page 5

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1.3 FOCUS ERROR AMPLIFIER
IC103
55
53
54
52
Under normal CD settings: F-GAIN = 0.5dB, FE-GAIN = 3.0dB
Under normal DVD settings: F-GAIN = -4.5dB, FE-GAIN = 6.0dB
1.4 TRACKING ERROR SIGNAL
GENERATING CIRCUIT
Tracking error signals are being formed by amplifying the RFA
being generated through the B1 - B4 of the pickup unit output
and the RF amplifier (IC103:TA1254AF) by the
TC7WU04FU(IC106,109) and by inputting these signals to the
time difference IC (IC107:PA0065AM). The error signals being
output from the time difference IC are amplified through the OP
amplifier(IC108) and the RF amplifier(IC103) before being input
to the servo DSP (IC401:TC9461F pin41).
IC107
2
IC108
8
NJM3404AM
4
19
10
6
Under normal CD settings: T-GAIN = -9.0dB, TE-GAIN = 0.0dB
Under normal DVD settings: T-GAIN = -9.0dB, TE-GAIN = 6.0dB
IC103
46
47
IC401
21
38
IC105
NJM3404AM
TEO
20
IC108
NJM3404AM
CX-692
Fig. 5
IC401
41
Fig. 6
5