Sony HCD-XG55 Service Manual ▷ View online
HCD-XG55
37
37
7-10. SCHEMATIC DIAGRAM – MAIN Board (1/3) –
•
See page 53 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
no mark : TUNER (FM/AM)
(
) : VIDEO
(Page 44)
(Page 39)
(Page 38)
(Page 38)
(Page 38)
(Page 39)
HCD-XG55
38
38
7-11. SCHEMATIC DIAGRAM – MAIN Board (2/3) –
•
See page 25 for Waveforms.
•
See page 54 for IC Pin Function Description.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
no mark : TUNER (FM/AM)
(
) : CD PLAY
<
> : VIDEO
{
} : TAPE PLAY (DECK A)
[
] : TAPE PLAY (DECK B)
〈〈
〉〉
: RECORD
∗
: Impossible to measure
(Page 37)
(Page 35)
(Page 36)
(Page 39)
(Page 37)
(Page 39)
(Page 33)
(Page 31)
(Page 46)
(Page 39)
(Page 37)
(Page 39)
HCD-XG55
39
39
7-12. SCHEMATIC DIAGRAM – MAIN Board (3/3) –
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
no mark : TUNER (FM/AM)
(
) : CD PLAY
(Page 38)
(Page 38)
(Page 38)
(Page 37)
(Page 42)
(Page 42)
(Page 38)
(Page 37)
HCD-XG55
40
40
7-13. PRINTED WIRING BOARD – MAIN Board –
•
See page 25 for Circuit Boards Location.
IC601
IC101
IC301
IC191
IC181
IC501
IC801
IC933
IC932
IC911
IC901
IC951
IC931
8
5
1
4
E
E
E
E
E
E
E
E
*
FM/AM
TUNER
TUNER
UNIT
SUPPLIED AS
THE ASSEMBLED
BLOCK
THE ASSEMBLED
BLOCK
*
FM 75
Ω
U
U
AM
ANTENNA
PHONO IN
R
L
MD IN
R
L
MD OUT
VIDEO OUT
R
L
R
L
VIDEO
AUDIO IN
VIDEO
VIDEO IN
J701
J702
1
3
E
E
1
3
M901
(FAN)
(FAN)
M
1
5
3
1
E
E
E
E
E
E
1
3
E
FRONT INPUT
BOARD
NO801
(CHASSIS)
1
3
E
E
E
E
E
E
1
1
1
3
3
3
1
3
1
13
1
13
1-680-166-
(11)
11
1
9
B
CD MOTOR BOARD
CN201
A
BD BOARD
CN101
18
19
19
2
1
E
E
E
3
1
E
1
3
3
1
3
1
3
3
G
PANEL FL BOARD
CN601
E
E
E
E
E
E
E
K
PA BOARD
CN803
J
PA BOARD
CN804
D
LEAF SW BOARD
CN1001
C
AUDIO BOARD
CN601
MAIN BOARD
1
30
31
50
51
80
81
100
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
(Page 34)
(Page 36)
(Page 45)
(Page 30)
(Page 32)
(Page 41)
(Page 41)
(Page 43)
• Semiconductor
Location
Ref. No.
Location
D191
C-8
D192
C-8
D193
B-8
D194
C-8
D501
J-8
D534
H-8
D801
J-8
D802
I-9
D803
I-9
D804
J-9
D805
I-9
D806
I-8
D807
J-10
D808
J-7
D911
F-11
D912
G-11
D913
G-11
D931
H-11
D951
C-12
IC101
E-5
IC181
C-7
IC191
C-8
IC301
H-4
IC501
H-7
IC601
C-3
IC801
J-9
IC901
D-12
IC911
F-11
IC931
H-12
IC932
H-12
IC933
I-12
IC951
C-12
Q111
E-7
Q112
E-7
Q113
E-7
Q115
E-6
Q161
E-6
Q162
F-6
Q163
F-6
Q165
F-5
Q331
J-4
Q332
J-4
Q333
J-4
Q334
J-4
Q335
J-5
Q336
J-4
Q339
J-5
Q801
I-8
Q802
J-10
Q803
J-10
Q804
I-10
Q901
D-13
Q902
C-13
Q903
C-12
Q904
C-12
Q905
C-13
Q906
C-13
Q911
G-11
Q912
F-11
Q913
G-11
Q914
G-11
Q931
H-11
Q932
H-11
Q961
B-12
Q962
B-12
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