Read Sony HCD-RG88 Service Manual online
HCD-RG88
43
43
7-22. SCHEMATIC DIAGRAM – POWER/SENSOR Boards –
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
no mark : TUNER (FM/AM)
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
R533
R515
R514
R531
C942
D941
R945
R942
R943
C525
C523
C524
JW567
JW566
C544
C545
EP501
D511
D507
D508
D509
R548
R547
R545
JW
517
Q510
Q502
D506
C516
R544
R543
R537
Q507
Q508
D502
R528
R532
R521
Q505
R522
Q506
R592
R542
C526
Q513
R546
C514
R538
C515
Q509
C507
C508
R509
R559
C558
C557
R507
R557
R505
R555
R516
R517
Q504
R513
R519
R582
R581
R561
C559
R518
R512
Q581
Q503
C504
C554
R502
C502
R552
R551
C551
R501
C501
C552
C509
C512
C943
CN503
NO501
NO504
CN502
NO505
CN701
Q941
D543
D510
JW563
JW604
TM501
R527
RY502
RY501
R529
R530
Q512
Q501
D551
D501
D581
R511
Q551
Q831
JW573
CN1072
TH701
EP502
JW561
Q511
C541
C513
C591
R591
R541
C546
C596
R523
R506
R556
R558
R560
IC501(1/2)
IC501(2/2)
R524
D503
C553
D504
D541
R565
R564
R540
R539
R526
R525
R520
R510
R508
R503
R553
R554
C542
C592
C517
C581
47k
22k
2.2k
220
10
50V
MTZJ-T-72
-33D
8.2k
8.2k
1k
0.01
0.01
0.01
0.1
100V
0.1
100V
1SS133T
1SS133T
1SS133T
1SS133T
47k
47k
4.7k
2SC2785
2SC2785
1SS133T
100
10V
10V
10k
68k
10k
2SC2785
2SC2785
1SS133T
47k
560k
100k
2SC2785
100k
2SC2785
100k
100k
10
50V
BA1F4M
22k
100
10V
10V
47k
2.2
50V
50V
2SA1175
0.068
0.068
10
1/2W
10
1/2W
0.068
0.068
100k
100k
1k
1k
10k
10k
2SC1841
33k
68k
33k
33k
100
22
100V
33k
1
2SC1841
2SA988TP
100
10V
10V
100
10V
10V
47k
470p
47k
1k
4.7
50V
50V
1k
4.7
50V
50V
470p
22
100V
0.01
100
50V
50V
13P
13P
3P
13P
2P
2P
2SB1375
D5SBA20
1SS133T
56k
22k
22k
BA1F4M
2SC1841
1SS133T
1SS133T
1SS133T
100
2SC1841
2SC2785
8P
2SC2785
0.1
0.01
0.1
100k
100k
2200
100V
100V
2200
100V
100V
82k
22k
22k
0.1
5W
0.1
5W
STK412-150
STK412-150
3.3k
1W
MTZJ-T-
72-18C
220p
MTZJ-T-
72-18C
RBV-2506
4.7k
4.7k
680
2W
680
2W
56k
47k
3.3k
1W
0.1
5W
0.1
5W
220
220
47k
2200
42V
2200
42V
10
50V
22
50V
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
VH
VH
GND
GND
VL
VL
AC3
AC3
AC4
AC4
VP
VF
VF
STBY RELAY
D-GND
R-IN
A-GND
L-IN
STK MUTE
STBY RELAY
D-GND
-B
FAN ON
DBFB FEEDBACK
FAN DET
SP PROTECT IN
FRONT RELAY
OVERLOAD_DET
SW_MUTE
VL+
IMAGINARY_GND
VL-
SW+
SW-
SW PROTECT
RCC_GND
LINK RELAY
-VG
EVER+4V
VF(1)
VF(2)
AC4(1)
AC4(2)
AC3(1)
AC3(2)
-33V
REGULATOR
(CHASSIS)
-1
-2
R
L
R
L
FRONT SPEAKER
FRONT SPEAKER
DRIVE
PROTECT RELAY
-1
-2
PROTECT
SWITCH
OVER LOAD
DETECT SWITCH
Q507,508
DC DETECT SWITCH
OVER LOAD
DETECT
SWITCH
STANDBY
SWITCH
STANDBY
SWITCH
STANDBY
POWER AMP
OVER LOAD
DETECT
DETECT SWITCH
Q505,506
TEMPERATURE
FAN MOTOR
ON SWITCH
SURROUND
SPEAKER
PROTECT
RELAY
DRIVE
(CHASSIS)
POWER-GND
POWER-GND
HP-R
HP-L
2
4
3
1
2
4
1
3
EVER+4V
Q509-511
IMPEDANCE USE 6
− 16Ω
IMPEDANCE USE 24Ω
SURROUND SPEAKER
C503
220p
47k
R504
(Page
41)
(Page 36)
(Page 49)
(Page 49)
(Page 37)
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