Sony HCD-RV20 / HCD-RV50 / HCD-RV60 / MHC-RV20 / MHC-RV50 / MHC-RV60 Service Manual ▷ View online
17
HCD-RV20/RV50/RV60
SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTION
• IC601 LC876696B-5IG9 (SYSTEM CONTROL, FLD CONTROL) (PANEL BOARD) (RV20)
• IC601 LC876696B-5IH0 (SYSTEM CONTROL, FLD CONTROL) (PANEL BOARD) (RV50/RV60)
• IC601 LC876696B-5IH0 (SYSTEM CONTROL, FLD CONTROL) (PANEL BOARD) (RV50/RV60)
Pin No.
Pin Name
I/O
Pin Description
1
SYS MUTE
O
System mute signal output
2
BU1924 DATA
I
Not used in this set. (Connected to ground.)
3
PWR DOWN
I
Power down signal input
4
LC78646 RESET
O
CD reset signal output
5
LC78646 CE
O
CD CE signal output
6
LC78646 CE (MP3)
O
CD CE (MP3) signal output
7
M61519 CLK
O
Clock signal output
8
BU2099FV LCK
O
LCK signal output
9
LC72121 CE
O
CE signal output
10
LC78684 SYNC
I
SYNC signal input
11
RESET
I
Reset signal input from the IC603
12
XT1
I
Oscillater connect pin (32.768 kHz)
13
XT2
O
Oscillater connect pin (32.768 kHz)
14
VSS1
—
Ground pin
15
CF1
I
Ceramic vibrator connect pin (8.64 MHz)
16
CF2
O
Ceramic vibrator connect pin (8.64 MHz)
17
VDD
—
Power supply pin (+3.3 V)
18
TAPE A STAT
I
Tape A start signal input
19
TAPE B STAT
I
Tape B start signal input
20
CD ENCODER
I
CD encoder switch signal input
21
SW ON/OFF SENSOR
I
Switch control on/off signal input
22
STREAM IN
I
Stream in signal input
23
VACS
I
VACS signal input
24
KEY2
I
Key signal input 2
25
KEY1
I
Key signal input 1
26
KEY0
I
Key signal input 0
27
PROTECTOR (HOLD)
I
Protector (Hold) signal input
28
REMOCON IN
I
Remote control signal input from the RM601
29
BU1924 CLK
I
Not used in this set. (Connected to ground.)
30 – 41
G12 – G1
O
FLD control signal output
42 – 45
P1 – P4
O
FLD control signal output
46
VDD3
—
Power supply pin (+3.3 V)
47 – 50
P5 – P8
O
FLD control signal output
51
VPP
—
Ground pin
52 – 55
P9 – P12
O
FLD control signal output
56
SW1 (a) P13
O
FLD control signal output
57
SW2 (b) P14
O
FLD control signal output
58
SW3 (c) P15
O
FLD control signal output
59
SW4 (d) P16
O
FLD control signal output
60
SW5 P17
O
FLD control signal output
61
SW6 P18
O
FLD control signal output
62
SW7 P19
O
FLD control signal output
63
SW8 P20
O
FLD control signal output
64, 65
P21, P22
O
FLD control signal output
66
ENTER LED
O
Not used in this set. (Open)
67
MD/VIDEO LED
O
RV20: Not used. (Open) RV50/RV60: GAME LED (LED610) drive signal output
68
GAME LED
O
RV20: GAME LED (LED612) drive signal output
RV50/RV60: MD/VIDEO LED (LED612) drive signal output
69
TAPE LED
O
TAPE A/B LED (LED609) drive signal output
70
TUNER LED
O
TUNER/BAND LED (LED608) drive signal output
18
HCD-RV20/RV50/RV60
Pin No.
Pin Name
I/O
Pin Description
71
CD LED
O
CD LED (LED607) drive signal output
72
VDD4
—
Power supply pin (+3.3 V)
73
CD VDD
—
CD power supply pin
74
TUNER TUNED
I
Tuner tuning signal input from the TU701 (tuner pack)
75
TUNER STEREO
I
Tuner stereo signal input from the TU701 (tuner pack)
76
CD DRF
I
CD DRF signal input
77
CD WRQ
I
CD WRQ signal input
78
CD NUMBER SENSOR
I
CD number sensor signal input
79
TAPE AMS IN
I
Tape AMS signal input
80
VR ENCODER A
I
VR encoder (VR601) signal input
81
VR ENCODER B
I
VR encoder (VR601) signal input
82
TAPE REEL A
I
Tape reel A signal input
83
TAPE REEL B
I
Tape reel B signal input
84
MODE SW IN
I
Mode switch signal input
85
STREAM 1 LED
O
Stream LED drive signal output
86
STREAM 2 LED/CD MUTE
O
RV20: CD mute signal output RV50/RV60: Stream LED drive signal output
87
STREAM 3 LED
O
RV20: Not used. (Open) RV50/RV60: Stream LED drive signal output
88
STREAM 4 LED/
O
RV20: Mechanism power control signal output “L”: ON, “H”: OFF
MECHA VCC
RV50/RV60: Stream LED drive signal output
89
VSS2
—
Ground pin
90
VDD2
—
Power supply pin (+3.3 V)
91
STREAM 5 LED/
O
RV20: Tape SOL A control signal output “L”: ON, “H”: OFF
TAPE SOL A
RV50/RV60: Stream LED drive signal output
92
STREAM 6 LED/
O
RV20: Tape SOL B control signal output “L”: ON, “H”: OFF
TAPE SOL B
RV50/RV60: Stream LED drive signal output
93
POWER LED
O
POWER LED (LED614) drive signal output
94
POWER RELAY
O
Power relay signal output
95
LC72121/M61529/
O
Serial data signal output
BU2099FV DO
96
LC72121 DI
I
Serial data signal input
97
LC72121/BU2099FV CLK
O
Serial clock signal output
98
LC78646/LC78684 DO
O
Serial data signal output
99
LC78646/LC78684 DI
I
Serial data signal input
100
LC78646/LC78684 CLK
O
Serial clock signal output
19
19
HCD-RV20/RV50/RV60
3-2. CIRCUIT BOARDS LOCATION
MAIN board
DRIVER board
SW board
VIDEO board
MOTOR (LD) board
MOTOR (TB) board
VIDEO OUT board
BD board
SENSOR board
TRANS board
POWER AMP board
JACK board
PANEL board
REMOTE board
1 STREAM LED board (RV20)
6 STREAM LED board (RV50/RV60)
6 STREAM LED board (RV50/RV60)
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : FM
(
tion tolerances.
no mark : FM
(
) : CD
[
] : TAPE
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
c
: digital out
L
: VIDEO
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Waveforms
– BD Board –
– BD Board –
1
2
IC103
6
(A),
8
(C)
Approx.
160mVp-p
160mVp-p
3
4
IC103
7
(B),
9
(D)
Approx.
160mVp-p
160mVp-p
IC103
qg
(RFAC)
Approx.
1Vp-p
1Vp-p
IC103
wk
(RFDCO)
Approx.
0.6Vp-p
0.6Vp-p
– VIDEO Board –
1
33.8688MHz
IC505
<zb/>
(XTAO)
1.1Vp-p
2
29MHz
IC505
<x/n>
(CLKA)
0.6Vp-p
– PANEL Board –
1
2
8.64MHz
IC601
qg
(CF1)
32.768kHz
IC601
qs
(XT1)
1.2Vp-p
1Vp-p
20
20
HCD-RV20/RV50/RV60
3-3. PRINTED WIRING BOARD — CD MECHANISM SECTION (1/2) — • Refer to page 19 for Circuit Boards Location.
(Page 24)
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
C165
C113
R227
C108
C115
R122
C114
C111
C101
R228
C120
C102
C166
C163
C182
C164
C117
C153
R126
R229
R117
C109
C119
C104
C112
R125
C188
C103
R234
R235
C151
IC103
CN102
Q101
R176
R111
C110
R109
R113
Q102
R102
R179
R123
R118
C213
R151
R236
IC102
R105
R103
R120
C107
R104
R124
R231
C118
R114
R152
R112
CN101
D101
M102
M101
Ref. No.
Location
D101
D-9
IC102
B-11
IC103
E-9
Q101
F-8
Q102
C-8
• Semiconductor
Location
Click on the first or last page to see other HCD-RV20 / HCD-RV50 / HCD-RV60 / MHC-RV20 / MHC-RV50 / MHC-RV60 service manuals if exist.