Sony HCD-EP505, Руководство по обслуживанию

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HCD-EP505
23 23
POWER
BOARD
CN505
E
MAIN
BOARD
(2/3)
7
MAIN
BOARD
(1/3)
5
MAIN
BOARD
(1/3)
3
MAIN
BOARD
(1/3)
6
15.1
15.1
14.8 (0.1)<14.8>
15.1
15.1
0 (9.4)<0>
15.1 (8.6)
<15.1>
2 (9.1) <2>
0 (9.5)<0>
0 (0.7)<0>
9.1
11.9
12.3
14.7
13.3
12.6
18
18
37.5
0.7
1.1
0.6
8.1
0
0
0.6
1.1
0.7
0
0
0
0
3.6
3.6
13.9
6.1
5.5
18.5
2SD1616
Q808
+12V REGULATOR
50V
16V
133
50V
+12V REGULATOR
REGULATOR
CONTROL SWITCH
I O G
U801
+9V REGULATOR
133
Q802, 803
+8V REGULATOR
16V
2SD1616
+5V
REGULATOR
50V
133
133
50V
DTC343
DTC343
Q505, 506
MUTING
50V
U502
POWER AMP
50V
50V
50V
50V
U503
HEADPHONE AMP
+
−
−
+
CN503
4P
R
L
SPEAKER
IMPEDANCE
USE 8 Ω
CN503
7
6
4
9
8
5
1
2
3
H501
PHONES
7
1
5
1
MAIN BOARD
(3/3)
HEADPHONE BOARD
6-9. SCHEMATIC DIAGRAM – MAIN (AEP, UK, CH models) (3/3) Section – • See page 19 for Waveforms. • See page 32 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
(
) : CD PLAY
< > : TAPE PLAY
The components identified by mark 0 or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
(Page
21)
(Page 21)
(Page
21)
(Page 22)
(Page 31)
Ver 1.1