Sony HCD-EC59 / HCD-EC590 / MHC-EC59 / MHC-EC590 Service Manual ▷ View online
HCD-EC59/EC590
13
SECTION 4
ELECTRICAL CHECKS
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-
ed.
3. Use an oscilloscope with more than 10 M
Ω impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specifi ed value with the following checks.
5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
+
–
BD74UR board
oscilloscope
(DC range)
CL102 (RFOUT)
CL117 (VREF)
Procedure :
1. Connect the oscilloscope to CL102 (RFOUT) and CL117
1. Connect the oscilloscope to CL102 (RFOUT) and CL117
(VREF) on the BD74UR board.
2. Press the [
?/1
] button to turn the power on, and press the
[FUNCTION] button to select CD function.
3. Set disc (YEDS-18) and press the [u] button to playback.
4. Confi rm that oscilloscope waveform is as shown in the fi gure
4. Confi rm that oscilloscope waveform is as shown in the fi gure
below (eye pattern).
A good eye pattern means that the diamond shape (
◊) in the
center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
1.1 ± 0.4 Vp-p
Checking Location:
CL102
(RFOUT)
CL117
(VREF)
IC101
IC301
– BD74UR Board (Conductor Side) –
TUNER SECTION
0 dB = 1
μV
FM AUTO STOP CHECK
signal
generator
set
Procedure :
1. Turn the power on.
2. Input the following signal from Signal Generator to FM an-
1. Turn the power on.
2. Input the following signal from Signal Generator to FM an-
tenna input directly.
Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
Deviation
: 75 kHz
Modulation
: 1 kHz
ANT input
: 35 dBu (EMF)
Note: Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confi rm that input Frequency of A, B and C detected and auto-
matic scanning stops.
The stop of automatic scanning means “The station signal is re-
ceived in good condition”.
HCD-EC59/EC590
14
SECTION 5
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : internal component.
• 2 : nonfl ammable resistor.
• C : panel designation.
• 2 : nonfl ammable resistor.
• C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– BD74UR Board –
no mark : CD PLAY
– Other Boards –
no mark : TUNER (FM/AM)
• Voltages are taken with VOM (Input impedance 10 M
no mark : CD PLAY
– Other Boards –
no mark : TUNER (FM/AM)
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
TUNER
(FM/AM)
J
: CD PLAY
E :
USB
f
: PC IN
• Abbreviation
AR :
AR :
Argentina
model
E2
: 120V AC area in E model
E4 :
African
model
E51
: Chilean and Peruvian models
MX
: Mexican model
For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• W : indicates side identifi ed with part number.
•
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• W : indicates side identifi ed with part number.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
AR :
AR :
Argentina
model
E2
: 120V AC area in E model
E4 :
African
model
E51
: Chilean and Peruvian models
MX
: Mexican model
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Ver. 1.1
2CH AMP AND PT-SWITCH BOARDS DISCRIMINATION
Distinguish by the part number of the silk print.
– PT-SWITCH Board (Component Side) –
SUFFIX-11: 1-882-027-11
SUFFIX-12: 1-882-027-12
SUFFIX-12: 1-882-027-12
– 2CH AMP Board (Component Side) –
SUFFIX-11 : 1-882-028-11
SUFFIX-12 : 1-882-028-12
SUFFIX-12 : 1-882-028-12
HCD-EC59/EC590
15
• Circuit Boards Location
USB board
REG board
BD74UR board
MAIN board
JACK board
PANEL board
PT-SWITCH board
2CH AMP board
USB-JACK board
HCD-EC59/EC590
16
• IC Pin Function Description
USB BOARD IC901 LC87F1JJ2AU-SQFP-H (USB CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
P73
I/O
Not used
2
RES
I
Reset signal input from the system controller “L”: reset
3
XT1
I
Not used
4
XT2
O
Not used
5
VSS1
-
Ground terminal
6
CF1
I
Main system clock input terminal (12 MHz)
7
CF2
O
Main system clock output terminal (12 MHz)
8
VDD1
-
Power supply terminal (+3.3V)
9
SO0
O
Serial data output to the CD-MP3 processor
10
SI0
I
Serial data input from the CD-MP3 processor
11
SCK0
O
Serial data transfer clock signal output to the CD-MP3 processor
12
SO1
O
Serial data output terminal Not used
13
SI1
I
Serial data input terminal Not used
14
SCK1
O
Serial data transfer clock signal output terminal Not used
15
P16
I
Chip enable signal input from the CD-MP3 processor
16
P17
I/O
Not used
17
MCLKI
I
Master clock signal input terminal Not used
18
MCLKO
O
Master clock signal output terminal Not used
19
VDD2
-
Power supply terminal (+3.3V)
20
VSS2
-
Ground terminal
21, 22
P00, P01
I/O
Not used
23 to 25
DBGP0 to DBGP2
-
Debug terminal
26
SDAT
I
Serial data input from the CD-MP3 processor
27
BCLK
I
Bit clock signal input from the CD-MP3 processor
28
LRCK
I
L/R sampling clock signal input from the CD-MP3 processor
29, 30
P20, P21
I/O
Not used
31
P22
O
Audio serial data output to the CD-MP3 processor
32
P23
O
Request signal output to the CD-MP3 processor
33
P24
O
Audio serial data transfer clock signal output to the CD-MP3 processor
34 to 36
P25 to P27
I/O
Not used
37
UHD-
I/O
USB D- serial data input/output terminal
38
UHD+
I/O
USB D+ serial data input/output terminal
39
VDD3
-
Power supply terminal (+3.3V)
40
VSS3
-
Ground terminal
41
UFILT
-
PLL fi lter circuit connection terminal for USB interface Not used
42
AFILT
-
PLL fi lter circuit connection terminal for audio interface Not used
43
P32
I/O
Not used
44
URX1
I
USB RX signal input from the system controller
45
UTX1
O
USB TX signal output to the system controller
46
P70
I
Request signal input from the CD-MP3 processor
47
P71
I
Sleep control signal input from the system controller
48
P72
I/O
Not used
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