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Model
HCD-GRX5 HCD-RX66 MHC-GRX5 MHC-RX66
Pages
70
Size
6.57 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-grx5-hcd-rx66-mhc-grx5-mhc-rx66.pdf
Date

Sony HCD-GRX5 / HCD-RX66 / MHC-GRX5 / MHC-RX66 Service Manual ▷ View online

– 71 –
 PANEL BOARD  IC601  TMP87CM74AF-6671
Pin No.
Pin Name
I/O
Function
1
LED3
O
LED drive signal output terminal    Not used (open)
2
LED4
O
LED drive signal output terminal    Not used (open)
3
LED5
O
LED drive signal output terminal (DISC 3)
4
LED6
O
LED drive signal output terminal (DISC 2)
5
LED7
O
LED drive signal output terminal (DISC 1)
6
LED8
O
LED drive signal output terminal (ENTER, GROOVE)
7
VSS
Ground terminal
8
X-OUT
O
System clock output terminal (8 MHz)
9
X-IN
I
System clock input terminal (8 MHz)
10
RESET
I
System reset signal input from the reset signal generator (IC502)    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
11
LED9
O
LED drive signal output terminal (JOG)
12
LED10
O
LED drive signal output terminal (NON-STOP, + 
), – 0)
13
TEST
I
Connected to ground
14
LED11
O
LED drive signal output terminal    Not used (open)
15
LED12
O
LED drive signal output terminal    Not used (open)
16
LED13
O
LED drive signal output terminal (CD 
( P)
17
LED14
O
LED drive signal output terminal (TAPE B 
(/9)
18
LED15
O
LED drive signal output terminal (TAPE A 
(/9)
19
VOL-A
I
Rotary encoder pulse input from the S602 (VOLUME)
20
VOL-B
I
Rotary encoder pulse input from the S602 (VOLUME)
21
JOG-A
I
Jog dial pulse input from the S601 (JOG)
22
JOG-B
I
Jog dial pulse input from the S601 (JOG)
23
SCL
I/O
 
Communication data reading clock signal input or transfer clock signal output with the system
controller (IC501)
24
SDA
I/O
Communication data bus with the system controller (IC501)
25
L.SEL
O
LED selection signal output terminal
26
KEY-0
I
27
KEY-1
I
Key input terminal (A/D input) (S619 to 625)
FLASH, NON-STOP, – 
0,  ENTER, + ) , DBFB, GROOVE keys input
28
KEY-2
I
29
KEY-3
I
Key input terminal (A/D input) (S618, 656 to 659)
LOOP, 
r REC, P PAUSE, HI-DUB, CD SYNC, keys input
30
MODEL
I
Destination setting terminal
31
SPEANA
RESET
O
Reset signal output to the spectrum analyzer band-pass filter (IC603)    “H”: reset
32
L+R
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for VACS, non-stop signal)
33
SIRCS
I
Remote control signal input from the remote control receiver (IC602)
34
SPEANA-1
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for low frequency)
35
SPEANA-2
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for low and middle frequency)
(FLUORESCENT INDICATOR TUBE DRIVE, LED DRIVE, KEY CONTROL)
Key input terminal (A/D input) (S631 to 642)
TUNER/BAND, CD 
( P, TAPE B (/9, TAPE A (/9, 1 / u (POWER), DISC 1/2/3,
DISC SKIP/EX-CHANGE, 
6 keys input
Key input terminal (A/D input) (S604 to 610, 614 to 617)
FILE SELECT, SURROUND, KARAOKE PON/MPX, 
p, TIMER SELECT, CLOCK/
TIMER SET, DISPLAY/DEMO, FUNCTION, EDIT, PLAY MODE, REPEAT keys input
– 72 –
Pin No.
Pin Name
I/O
Function
36
SPEANA-3
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for middle and high frequency)
37
SPEANA-4
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for high frequency)
38
VASS
Ground terminal
39
VAREF
I
Reference voltage (+5V) input terminal (for A/D conversion)
40
VDD
Power supply terminal (+5V)
41 to 53
GR1 to GR13
O
Grid drive signal output to the fluorescent indicator tube (FL601)
54 to 69
SEG1 to SEG16
O
Segment drive signal output to the fluorescent indicator tube (FL601)
70 to 72
SEG19 to SEG17
O
Segment drive signal output to the fluorescent indicator tube (FL601)
73 to 77
SEG24 to SEG20
O
Segment drive signal output to the fluorescent indicator tube (FL601)
78
VKK
Power supply terminal (–30V) (for fluorescent indicator tube drive)
79
LED1
O
LED drive signal output terminal  (
r REC, P PAUSE)
80
LED2
O
LED drive signal output terminal    Not used (open)
– 73 –
SECTION  8
EXPLODED  VIEWS
Les composants identifiés par une
marque 
! sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le neméro spécifié.
The components identified by
mark 
! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
(1)  CASE  SECTION
9
8
8
7
10
11
7
5
4
3
2
1
6
#2
#5
#2
#2
#3
#3
Front panel
TCM-230AWR1
TCM-230PWR1
1
4-996-733-01 SPRING (B DECK)
2
X-4949-350-1 LID (R) ASSY, CASSETTE
3
4-996-732-01 SPRING (A DECK)
4
X-4949-349-1 LID (L) ASSY, CASSETTE
5
4-996-703-01 PANEL, LOADING (RX66)
5
4-996-703-11 PANEL, LOADING (GRX5)
6
1-769-984-11 WIRE (FLAT TYPE) (13 CORE) (23 CM)
7
3-363-099-11 SCREW (CASE 3 TP2) (3X8)
8
3-363-099-71 SCREW (CASE 3 TP2) (3X12)
* 9
4-996-728-01 CASE (EXCEPT GRX5: IA/RX66)
* 9
4-996-728-21 CASE (GRX5: IA)
10
1-773-048-11 WIRE (FLAT TYPE) (17 CORE)
11
1-773-025-11 WIRE (FLAT TYPE) (15 CORE) (33 CM)
• Abbreviation
AUS : Australian
IA
: Indonesian
CND : Canadian
MX : Mexican
E2
: 120 V AC Area in E model
MY : Malaysia
E3
: 240 V AC Area in E model
SAF : South African
EA3 : Saudi Arabia
SP
: Singapore
EA4 : Israel
TH
: Thai
HK : Hong Kong
TW : Taiwan
– 74 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
(2)  FRONT  PANEL  SECTION
54
54
56
55
51
52
63
#7
#7
not supplied
not supplied
63
58
58
58
58
58
58
60
58
59
58
57
53
58
58
62
61
(including 
r
A, 
r
B)
57
not supplied
supplied with J421
#2
supplied with 
J751
r
A
r
B
 
51
X-4949-340-1 PANEL ASSY, FRONT (GRX5/RX66: CND)
51
X-4949-621-1 PANEL ASSY, FRONT (RX66: US)
52
4-930-336-61 FOOT (FELT)
53
4-962-708-11 EMBLEM (4-A), SONY
54
4-995-081-01 LATCH, DC
55
4-996-722-01 KNOB (VOL)
56
4-996-721-01 KNOB (JOG-U4)
* 57
4-996-716-01 HOLDER (CDM)
58
4-951-620-01 SCREW (2.6X8), +BVTP
59
4-986-893-51 KNOB (MICROPHONE)
* 60
1-668-206-11 CD-SW BOARD
* 61
A-4407-079-A PANEL BOARD, COMPLETE
* 62
1-668-209-11 HP BOARD
63
3-973-975-11 DAMPER, OIL
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