Sony HCD-RG295 / HCD-RG495 / HCD-RG595 / MHC-RG295 / MHC-RG495 / MHC-RG595 Service Manual ▷ View online
57
HCD-RG295/RG495/RG595
MAIN BOARD IC901 uPD78F0547GC (S)-UBT-A (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
I-AC-PULSE
I
AC power detection signal input terminal
2
O-REC/PB
O
Recording/playback selection signal output terminal "L": playback, "H": recording
3
O-REC-MUTE
O
Recording muting on/off control signal output terminal "L": muting on
4
O-BIAS
O
Recording bias on/off control signal output terminal "H": bias on
5
O-STK-MUTE
O
Standby signal output to the power amplifier (for front speaker)
6
O-SW_GAIN
O
Sub woofer gain control signal output terminal Not used
7
O-POWER-RELAY
O
Power on/off relay drive signal output terminal "H": power on
8
O-XM-POWER3.3
O
Power on/off control signal output terminal for XM section Not used
9
I-AC-CUT
I
AC power off detection signal input terminal
10
I-XRESET
I
System reset signal input from the reset signal generator "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
11
XT2 (32.768KHZ)
O
Sub system clock output terminal (32.768 kHz)
12
XT1 (32.768KHZ)
I
Sub system clock input terminal (32.768 kHz)
13
FLMDO
I
Internal flash memory data writing mode control signal input terminal
14
X2 (16MHZ)
O
Main system clock output terminal (16 MHz)
15
X1 (16MHZ)
I
Main system clock input terminal (16 MHz)
16
REGC
-
External capacitor connection terminal for regulator
17
VSS
-
Ground terminal
18
EVSS
-
Ground terminal
19
VDD
-
Power supply terminal (+3.3V)
20
EVDD
-
Power supply terminal (+3.3V)
21
O-SYS-MUTE
O
Muting on/off control signal output terminal "L": muting on
22
O-SWR
O
Sub woofer speaker on/off relay drive signal output terminal "L": sub woofer speaker on
(RG495/RG595 models)
(RG495/RG595 models)
23
O-FRONT-SP-
RELAY
O
Front speaker on/off relay drive signal output terminal "H": front speaker on
24
O-XTCN
O
Oscillation circuit on/off control signal output to the CD DSP
"L": oscillation stop, "H": self-oscillation
"L": oscillation stop, "H": self-oscillation
25
O-MP3-RST
O
System reset signal output terminal Not used
26
O-MP3-XLAT/
O-MP3-CS
O
MP3 serial data latch pulse signal output to the CD DSP
27
I-MP3-ACK
I
MP3 acknowledge signal input from the CD DSP
28
O-XLAT/
O-MP3-STB
O
CD serial data latch pulse signal output to the CD DSP
29
I-MP3-REQ
I
MP3 data request signal input from the CD DSP
30
O-MP3-CS/
O-MP3-LP
O
MP3 data request signal output to the CD DSP
31
O-D-MUTE/
O-XLT
O
System reset signal output to the motor/coil driver "L": reset
32
O-XRST
O
System reset signal output to the CD DSP "L": reset
33
O-LM-R
O
Loading motor control signal output terminal (reverse direction)
34
O-LM-F
O
Loading motor control signal output terminal (forward direction)
35
O-TM-R
O
Table motor control signal output terminal (reverse direction)
36
O-TM-F
O
Table motor control signal output terminal (forward direction)
37
I-CD-NUMBER-
SENS
I
Disc table address sensor input terminal
38
I-OPEN-SW
I
Disc table open/close detection switch input terminal "L": open, "H": close
39
I-XTUNED
I
Tuning detection signal input terminal Not used
58
HCD-RG295/RG495/RG595
Pin No.
Pin Name
I/O
Description
40
I-SCOR
I
Subcode sync (S0+S1) detection signal input from the CD DSP
41
O-CDG-RST/
I-RDS-CLK
I
RDS data transfer clock signal input from the tuner (FM/AM)
(RG295: AEP, UK/RG495: AEP/RG595: AEP, UK models)
(RG295: AEP, UK/RG495: AEP/RG595: AEP, UK models)
42
O-LC23003-CE
O
Chip enable signal output to the tuner (FM/AM)
43
O-LC23003-DO
O
Serial data output to the tuner (FM/AM)
44
O-LC23003-CLK
O
Serial data transfer clock signal output to the tuner (FM/AM)
45
I-LC23003-DI
I
Serial data input from the tuner (FM/AM)
46
O-VMUTE
O
Video muting on/off control signal output terminal Not used
47
O-CDG -POWER
O
Power on/off control signal output terminal for CD-G section Not used
48
I-CDG-DET
I
CD-G detection signal input terminal Not used
49
O-CDG-MUTE-
DATA/I-RDS-DATA
I
RDS data input from the tuner (FM/AM)
(RG295: AEP, UK/RG495: AEP/RG595: AEP, UK models)
(RG295: AEP, UK/RG495: AEP/RG595: AEP, UK models)
50
I-XM-RXD
I
Receive data input terminal Not used
51
O-XM-TXD
O
Transmit data output terminal Not used
52
O-CD-DATA
O
CD serial data output to the CD DSP
53
I-CD-SENS
I
Internal status (SENSE) signal input from the CD DSP
54
O-CD-CLK
O
CD serial data transfer clock signal output to the CD DSP
55
I-MIC-DET
I
Microphone plug insert detection signal input terminal Not used
56
O-R2S15208SP-
DATA
O
Serial data output to the parametric equalizer (RG595: E, Saudi Arabia models)
57
O-AUDIO-CLK
O
Serial data transfer clock signal output to the electrical volume and parametric equalizer
(RG595: E, Saudi Arabia models)
Serial data transfer clock signal output to the electrical volume
(RG295/RG495/RG595: AEP, UK models)
(RG595: E, Saudi Arabia models)
Serial data transfer clock signal output to the electrical volume
(RG295/RG495/RG595: AEP, UK models)
58
O-R2S15207FP-
DATA
O
Serial data output to the electrical volume
59
AVREF
I
Reference voltage (+3.3V) input terminal
60
AVSS
-
Ground terminal
61
I-HP/AUDIO IN
I
Headphone plug and audio in plug insert detection signal input terminal
"L": headphone plug or audio in plug insert
"L": headphone plug or audio in plug insert
62
I-SUFFIX
I
Setting terminal for the model and destination
63
I-VACS
I
VACS signal input terminal (A/D input)
64
I-PROTECTOR
I
Protector detection signal input terminal
65
I-KEY0
I
Front panel key input terminal (A/D input)
66
I-CD-ENCODER
I
Disc table address sensor (rotary encoder) input terminal
67
I-MODEL
I
Setting terminal for the model and destination
68
I-STREAM
I
Audio signal input for stream LED (A/D input)
69
O-STBY-LED
O
LED drive signal output terminal for STANDBY indicator "H": LED on
70
O-MP3-CLK
O
MP3 serial data transfer clock signal output to the CD DSP
71
I-MP3-DATA
I
MP3 serial data input terminal
72
O-MP3-DATA
O
MP3 serial data output to the CD DSP
73
I-TCM-SYNC
I
Sync signal input from the tape mechanism deck controller
74
O-VFD-RESET
O
System reset signal output to the fluorescent indicator tube/LED driver "L": reset
75
O-VFD-CE
O
Chip enable signal output to the fluorescent indicator tube/LED driver
76
O-VFD-DATA
O
Serial data output to the fluorescent indicator tube/LED driver
77
I-VFD-DATA
I
Serial data input from the fluorescent indicator tube/LED driver
78
O-VFD-CLK
O
Serial data transfer clock signal output to the fluorescent indicator tube/LED driver
79
I-WAKEUP
I
Wake up signal input terminal
80
I-XSIRCS-IN
I
SIRCS signal input from the remote control receiver
59
HCD-RG295/RG495/RG595
Pin No.
Pin Name
I/O
Description
1
VDD1
-
Power supply terminal (+3.3V)
2
VSS1
-
Ground terminal
3
X1
I
System clock input terminal (4.19 MHz)
4
X2
O
System clock output terminal (4.19 MHz)
5
IC
I
Input terminal for the IC test Normally: fixed at "L"
6
XRESET
I
System reset signal input from the system controller "L": reset
7
SCK1
I
Serial data transfer clock signal input from the system controller
8
SI1
I
Serial data input from the system controller
9
SO1
O
Serial data output to the system controller
10
I-VOL A
I
Jog dial pulse input from the rotary encoder (VOLUME) (A phase input)
11
I-VOL B
I
Jog dial pulse input from the rotary encoder (VOLUME) (B phase input)
12
I-JOG A
I
Jog dial pulse input from the rotary encoder (multi jog) (A phase input)
13
I-JOG A
I
Jog dial pulse input from the rotary encoder (multi jog) (B phase input)
14, 15
NC
I
Not used
16
CE
I
Chip select signal input from the system controller
17
I-MODEL
I
Destination setting terminal
18
AVSS
-
Ground terminal
19 to 22
KEY1 to KEY4
I
Front panel key input terminal (A/D input)
23
VSS0
-
Ground terminal
24
AVDD
-
Power supply terminal (+5V)
25
VDD0
-
Power supply terminal (+5V)
26
NC
I
Not used
27
I-HALF-B
I
Deck-B cassette detection signal input from the tape mechanism deck block "L": cassette in
28
I-REEL-B
I
Deck-B tape reel rotating detection signal input from the tape mechanism deck block
29
I-REC-SW
I
Recording-proof detection signal input from the tape mechanism deck block
"L": recording possible
"L": recording possible
30
I-HALF-A
I
Deck-A cassette detection signal input from the tape mechanism deck block "L": cassette in
31
I-REEL-A
I
Deck-A tape reel rotating detection signal input from the tape mechanism deck block
32
NC
I
Not used
33
O-MOTOR
O
Capstan/reel motor drive signal output terminal "H": motor on
34
O-SOL-A
O
Deck-A side trigger plunger drive signal output terminal "H": plunger on
35
O-SOL-B
O
Deck-B side trigger plunger drive signal output terminal "H": plunger on
36
O-TCM-SYNC
O
Sync signal output to the system controller
37
SW LED
O
LED rive signal output of the SUBWOOFER indicator "H": LED on (RG495/RG595 models)
38
NC
I
Not used
39 to 43
STREAM LED1 to
STREAM LED5
O
LED rive signal output of the stream indicator "H": LED on
44
NC
I
Not used
45 to 58
S1 to S14
O
Segment drive signal output to the fluorescent indicator tube
59
VDD2
-
Power supply terminal (+5V)
60
VLOD
-
Power supply terminal (-27V)
61 to 67
S15 to S21
O
Segment drive signal output to the fluorescent indicator tube
68 to 80
G13 to G11
O
Grid drive signal output to the fluorescent indicator tube
PANEL BOARD IC701 uPD780232GC-509-8BT-A
(FLUORESCENT INDICATOR TUBE/LED DRIVER, TAPE MECHANISM DECK CONTROLLER)
(FLUORESCENT INDICATOR TUBE/LED DRIVER, TAPE MECHANISM DECK CONTROLLER)
60
HCD-RG295/RG495/RG595
SECTION 8
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
2-658-299-81 LID (CD)
(RG295: AEP, UK/RG495: AEP/RG595: AEP, UK)
1
2-658-299-91 LID (CD) (RG295: E, AUS/RG495: E, EA, AUS/
RG595: E, EA)
2
3-363-099-32 SCREW (CASE 3 TP2)
3
2-599-855-11 CASE (SIDE-L)
6
4-951-620-01 SCREW (2.6X8), +BVTP (RG495/RG595)
8
2-599-854-11 CASE (TOP)
9
2-599-856-11 CASE (SIDE-R)
10
2-675-793-01 COVER (OP) (RG495/RG595)
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
#3
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
8-1.
CASE SECTION
1
#1
#1
#1
#1
#1
PANEL board section
MAIN board
section
section
CD mechanism deck
section
section
2
2
2
2
3
8
9
#1
#3
#3
#3
6
10
(RG495/RG595)
not
supplied
supplied
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference
number in the exploded views are not supplied.
number in the exploded views are not supplied.
•
Accessories are given in the last of the
electrical parts list.
electrical parts list.
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
The components identified by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
•
Abbreviation
AUS : Australian model
EA
AUS : Australian model
EA
: Saudi Arabia model
Ver. 1.1
Click on the first or last page to see other HCD-RG295 / HCD-RG495 / HCD-RG595 / MHC-RG295 / MHC-RG495 / MHC-RG595 service manuals if exist.