Ic Pin Function - Sony HCD-GRX2 Service Manual

5-10.

IC PIN FUNCTION

IC601 µPD780205GF (SYSTEM CONTROL) / PANEL BOARD
Pin No.
51
Pin No. Pin Name I/O Description
52
1 VDD — VDD
53
2 POWER OUT O Power switch output. ON: H, OFF: L
54
3 S. MUTE OUT O System mute output. ON: H, OFF: L
55
4 TU. MUTE OUT O Tuner mute output. ON: H, OFF: L
5 TUNED OUT O Surround output. ON: H, OFF: L (Not used) 56
57
6 TAPE REC OUT O Function tape output. Tape: H, Others: L (Not used)
7 DBFB NORMAL O DBFB normal (U2: DBFB). ON: H, Others: L 58
8 NC O DBFB high. ON: H, Others: L (Not used) 59
9 NC O Not used 60
10 RESET — Reset input 61
11 X2 I X'tal 4.194314 MHz
62
12 X1 I X'tal 4.194314 MHz
13 VSS — Ground 63
14 NC — Not used (open) 64
65
15 POWER DOWN IN I Power down input. AC ON: H, AC OFF: L
66
16 VDD — VDD
17 SOCK O CXD2508A SQCK, CLOCK output 67
68
18 DATA O CXD2508A data output
69
19 SOSO I CXD2508A SQSO input
70
20 XLAT O CXD2508A XLAT output. Latch: L, Others: H
71
21 CE O Chip enable output to LC7218, LC75392. Data: H, Address: L
72
22 CLK O CLK output
73
23 DO O Data output
74
24 DI I Data input
75
25 VSS — Ground
76
26 CD STB O STB output to SN74HC4094. STB: L, Others: H
27 FLAT O Flat output. Flat: H, Others: L (Not used) 77
28 VSS — Ground 78
29 K4 I Key input 4 to A/D 79
30 K3 I Key input 3 to A/D 80
31 K2 I Key input 2 to A/D 81
32 K1 I Key input 1 to A/D 82
33 K0 I Key input 0 to A/D 83
34 AVDD O VDD of A/D converter 84
35 AVREF — Reference voltage of A/D converter 85
36 A LATCH O Latch output to BU2092. Latch: H, Others: L 86
37 B LATCH O Not used 87
88
38 SCOR I CXD2508A SCOR
89
39 REMOTE IN I Remote signal input. ON: H, OFF: L
90
40 VSS — Ground
91
41 NC O Shift or load output to SN74HC165. Shift: H, Load: L (Not used)
92
42 VSS I Data input to SN74HC165 (Ground)
93
43 DECK STB O STB output to BU2114, SN74HC4094. STB:H, Others: L (Not used)
94
44 VR UP I VR encoder A input. ON:L, OFF: H
95
45 VR DOWN I VR encoder B input. ON:L, OFF: H
96
46 VDD — VDD
47 FM ST IN I FM stereo indicator input. Stereo:L, Mono: H 97
98
48 SYNC REC IN I Synchro record input. Record:L, Other: H
49 VSS I CD encoder A input. ON: L, OFF: H (Ground) 99
50 VSS I CD encoder B input. ON: L, OFF: H (Ground) 100
— 52 —
NOTE:
• -XX, -X mean standardized parts, so they may
Pin Name I/O Description
have some differences from the original one.
• Items marked "*" are not stocked since they
SENS I Input from CXD2508A SENS
are seldom required for routine service. Some
FOK I Input from CXD2508A FOK. OK: H, Others: L
delay should be anticipated when ordering these
COUNT I Input from CXD2508A COUNT items.
• Abbreviation
VSS — Ground
CND : Canadian
PIC UP I
Input from CD mechanism pick up switch. Up: L, Others: H MX : Mexican
PIC DOWN I Input from CD mechanism pick down switch. Down: L, Others: H
6-1. CABINET SECTION
DISC COUNT SW I Input from CD mechanism disc count switch. Count: L, Others: H
TURN TABLE SW I Input from CD mechanism turn table switch. ON: L, OFF: H
TRAY OPEN SW I Input from CD mechanism tray open switch. Open: L, Others: H
TRAY CLOSE SW I Input from CD mechanism tray close switch. Open: L, Others: H
VSS I AMS signal input. During program: H, Interval between programs: L
SERI MUTE
O Serial mute (tuner) output (Not used)
(TUNER)
MODE SW IN I Input from destination select mode switch. ON: H, OFF: L
P1 O FLD segment signal output P1. ON: H, OFF: L
P2 O FLD segment signal output P2. ON: H, OFF: L
P3 O FLD segment signal output P3. ON: H, OFF: L
P4 O FLD segment signal output P4. ON: H, OFF: L
#11
P5 O FLD segment signal output P5. ON: H, OFF: L
P6 O FLD segment signal output P6. ON: H, OFF: L
P7 O FLD segment signal output P7. ON: H, OFF: L
P8 O FLD segment signal output P8. ON: H, OFF: L
P9 O FLD segment signal output P9. ON: H, OFF: L
P10 O FLD segment signal output P10. ON: H, OFF: L
P11 O FLD segment signal output P11. ON: H, OFF: L
P12 O FLD segment signal output P12. ON: H, OFF: L
P13 O FLD segment signal output P13. ON: H, OFF: L
P14 O FLD segment signal output P14. ON: H, OFF: L
CD mechanism deck
P15 O FLD segment signal output P15. ON: H, OFF: L
–V LOAD — (–) negative power supply
P16 O FLD segment signal output P16. ON: H, OFF: L
P17 O FLD segment signal output P17. ON: H, OFF: L
P18 O FLD segment signal output P18. ON: H, OFF: L
P19 O FLD segment signal output P19. ON: H, OFF: L
P20 O FLD segment signal output P20. ON: H, OFF: L
P21 O FLD segment signal output P21. ON: H, OFF: L
G15 O FLD grid signal output 15. ON: H, OFF: L
G14 O FLD grid signal output 14. ON: H, OFF: L
G13 O FLD grid signal output 13. ON: H, OFF: L
G12 O FLD grid signal output 12. ON: H, OFF: L
G11 O FLD grid signal output 11. ON: H, OFF: L
G10 O FLD grid signal output 10. ON: H, OFF: L
G9 O FLD grid signal output 9. ON: H, OFF: L
G8 O FLD grid signal output 8. ON: H, OFF: L
G7 O FLD grid signal output 7. ON: H, OFF: L
Ref. No. Part No.
G6 O FLD grid signal output 6. ON: H, OFF: L
1 4-210-302-01 RUBBER, FOOT
G5 O FLD grid signal output 5. ON: H, OFF: L 2 4-210-292-01 DOOR, CD
3 4-210-297-01 CABINET
G4 O FLD grid signal output 4. ON: H, OFF: L
* 4 A-4405-471-A MAIN BOARD, COMPLETE
G3 O FLD grid signal output 3. ON: H, OFF: L
* 5 1-670-391-11 AC POWER BOARD
G2 O FLD grid signal output 2. ON: H, OFF: L
! 6 1-559-583-11 CORD, POWER (US, CND)
G1 O FLD grid signal output 1. ON: H, OFF: L
! 6 1-551-506-99 CORD, POWER (MX, SAF)
— 53 —
SECTION 6
EXPLODED VIEWS
6-2. FRONT PANEL SECTION
• The mechanical parts with no reference
When indicating parts by reference number,
number in the exploded views are not please include the board name.
supplied.
The components identified by mark ! or
• Hardware (# mark) list and accessories and
dotted line with mark ! are critical for safety.
packing materials are given in the last of
Replace only with part number specified.
this parts list.
Les composants identifiés par une marque
! sont critiques pour la sécurité.
AUS : Australian
Ne les remplacer que par une pièce portant
SAF : South African le numéro spécifié.
not supplied
#1
not supplied
not supplied
4 69
#1
not supplied
#2
#2
#2
#2
#11
not supplied
a
3
#16
70
#2 PT302
55
not supplied
#3 #1
#16
5
#1 54
#11 7
#1
#1
#10 #1
6
#1
a
Ref. No. Part No.
#10
51 4-210-296-01 WINDOW (R), DOOR
52 4-210-294-01 LID (R), CASSETTE
53 4-210-326-01 SPRING, DOOR
54 4-210-295-01 WINDOW (L), DOOR
8
55 4-210-293-01 LID (L), CASSETTE
9
56 4-210-319-01 KNOB, VOLUME
2
57 4-210-300-01 RING, VOLUME
58 4-210-304-01 WASHER, VR
59 4-992-131-01 DAMPER (GRY), GEAR
1
* 60 1-670-392-11 H.P BOARD
* 61 1-670-387-11 DISK BOARD
#1
* 62 1-670-388-11 SENSOR BOARD
63 1-773-077-11 WIRE (FLAT TYPE) (18 CORE)
Description Remarks Ref. No. Part No. Description Remarks
* 64 A-4414-553-A PANEL BOARD, COMPLETE
! 6 1-696-966-11 CORD, POWER (AUS)
* 65 1-670-389-11 VR BOARD
7 4-210-299-01 WASHER, AC CORD
8 4-210-301-01 FOOT (B)
* 66 1-666-444-11 R/P SWITCH BOARD
* 9 4-210-298-01 CHASSIS
67 4-210-307-01 PANEL, FRONT
! PT302 1-431-939-11 TRANSFORMER, POWER (US, CND)
68 4-962-708-01 EMBLEM (4-A), SONY
! PT302 1-431-961-11 TRANSFORMER, POWER (MX, SAF)
! PT302 1-431-962-11 TRANSFORMER, POWER (AUS)
— 54 —
6-3. CASSETTE BUTTON SECTION
not supplied
63
#1
#1
60
87 85
#1
84
75
62
72
86
71
64
68 #1
61
73
65
74
77
59
78
57 81
79
59 80
#1
56 66
#1
82
#1
#1
58
#1
83
67
53
Cassette mechanism deck
53
52
51
Description Remarks Ref. No. Part No. Description Remarks Ref. No. Part No.
69 4-210-308-01 OVERAY, DISPLAY 101 4-210-336-01 BUTTON (L), REC
70 4-210-309-01 WINDOW, DISPLAY 102 4-210-337-01 BUTTON (L), PLAY
71 4-210-310-01 LENS (A), CD BUTTON 103 4-210-338-01 BUTTON (L), REW
72 4-210-311-01 LENS (B), CD BUTTON 104 4-210-339-01 BUTTON (L), FF
73 4-210-312-01 LENS (C), CD BUTTON 105 4-210-340-01 BUTTON (L), S/E
74 4-210-313-01 BUTTON (B), CD 106 4-210-341-01 BUTTON (L), PAUSE
75 4-210-314-01 BUTTON, POWER
76 4-210-315-01 BUTTON, CLOCK
77 4-210-316-01 BUTTON, FUNCTION
78 4-210-317-01 BUTTON, TUNER
79 4-210-318-01 LENS, PLAY
80 4-210-320-01 LENS, BUTTON
81 4-210-321-01 OVERAY, BUTTON
82 4-210-322-01 HOLDER (L), DOOR
83 4-210-323-01 HOLDER (R), DOOR
84 4-210-324-01 HOLDER, CD BUTTON
85 4-210-327-01 BRACKET, TOP CABINET
86 4-210-329-01 FILM, BUTTON LENS
87 4-210-330-01 PLATE, PVC
— 55 —
101
102
103
104
106
105
107
108
109
110
111
Description Remarks Ref. No. Part No. Description Remarks
107 4-210-342-01 BUTTON (R), PLAY
108 4-210-343-01 BUTTON (R), REW
109 4-210-344-01 BUTTON (R), FF
110 4-210-345-01 BUTTON (R), S/E
111 4-210-346-01 BUTTON (R), PAUSE
— 56 —