Sony FH-B7CD - Page 52

__ HCD-H7/H1900
SERVICE MANUAL Canadian Model
AEP Model
UK Model
HCD-H1500
CORRECTION-1
AEP
Model
Correct
your
service
manual
as
shown
below.
E
Model
HCD-H7
ta: indicates corrected portion.
Page INCORRECT
1. Laser Diode Properties
e Material: GaAlAs
e Wavelength: 780mm
e Emission Duration: continuous
CORRECT
1. Laser Diode Properties
e Material: GaAlAs >
e Wavelength: 780 nm
e Emission Duration: continuous
E-F Balance Check
Procedure : y
1. Connect test point TP (ADJ) to ground and TP (TES) to
TP (VC) with lead wire.
E-F Balance Check
Procedure:
1. Connect test point TP (ADJ) and TP (TES) to ground
with lead wire.
Focus/Tracking Gain Adjustment
Focus/Tracking Gain Adjustment
Procedure :
1,
Procedure :
yd
4. Adjustment RV102 on digital board so that the waveform
' is as shown in the figure below. (focus gain adjustment)
@e
6. Adjusted RV101 on digital board so that the waveform is
as shown the flgure below. (tracking gain adjustment)
Adjustment RV101 on digital board so that the waveform
is as shown in the figure below. (focus gain adjustment)
6. Adjusted MV102 on digital board so that the waveform is
as shown the flgure below. (tracking gain adjustment)
6-1. SEMICONDUCTOR LEAD LAYOUTS 6-1. SEMICONDUCTOR LEAD LAYOUTS
CXA1372Q CXA1372Q
CXD2500Q
12
(TOP VIEW)
CXD25000