Sony Vx8 Owners Manual

							Ð 81 Ð
Pin No.Pin NameI/O Function
41 TE I Tracking error signal input
42 CE I Center servo analog input
43 RFDC I RF signal input
44 ADI0 O Test pin (Not used)
45 AVSS0 Ñ Analog ground
46 IGEN I Power supply pin operational amplifiers
47 AVDD Ñ Analog power supply
48 ASYO O EFM full swing output
49 ASYI I Asymmetry comparate voltage input
50 RFAC I EFM signal input
51 AVSS1 Ñ Analog ground
52 CLTV I Control voltage input for master VCO
53 FILO O Filter output for master PLL
54 FILI I Filter input for master PLL
55 PCO O Charge-pump output for master PLL
56 AVDD1 Ñ Analog power supply
57 BIAS I Asymmetry circuit constant current input
58 VCTL I Control voltage input for variable pitch PLL
59 V16M I/O 16.9344MHz output (Not used)
60 VPCO O Charge-pump output for variable pitch PLL (Not used)
61 DVDD2 Ñ Digital power supply
62 ASYE I Asymmetry circuit ON/OFF
63 MD2 I Digital-out ON/OFF control
64 DOUT O Digital-out output
65 LRCK O 48-bit slot D/A interface, LR clock output
66 PCMD O 48-bit slot D/A interface, Serial deta output
67 BCLK O 48-bit slot D/A interface, bit clock output
68 EMPH O Playback disc output in emphasis mode (Not used)
69 XTSL I XÕtal selection input pin
70 DVSS2 Ñ Digital ground
71 XTAI I XÕtal oscillator circuit input
72 XTAO O XÕtal oscillator circuit output (Not used)
73 SOUT O
74 SOCK O (Not used)
75 XOCT O
76 SQSO O Sub-Q serial output
77 SQCK I Clock input for SQSO read-out
78 SCSY I Sub-code input
79 SBSO O Sub-P through Sub-W serial output (Not used)
80 EXCR I Clock input for SBSO read-out 
						

							Ð 82 Ð
Pin No.Pin Name I/O Function ¥ IC502 MPEG DECODER, MECHANISM CONTROL (M30620MC-A05FP) (VIDEO (1/3) Board)
1 SENSE I Internal state (SENSE) monitor input (IC101)
2 SENSE CLK O Serial data reading clock output (IC101)
3 DSP DATA O Serial data output (IC101)
4 DSP LATCH O Lach output (IC101)
5 DSP CLK OSerial data clock output (IC101)
6 TSENS I Not used
7 REMOTE IN I Not used
8 BYTE I External bus width change input (Connected to ground)
9 VSS Ð Ground
10 DSP MUTE O Mute output (IC101) ÒHÓ : mute
11 CTRL1 (L : DOUBLE) O Double change output (IC101) ÒLÓ : double
12 XRESET I System reset input ÒLÓ : reset
13 XOUT O Main clock output (10MHz)
14 VSS Ð Ground
15 XIN I Main clock input (10MHz)
16 VCC Ð +5V power supply
17 NMI I Requests mask disable interruption input (Connected to +5V)
18 SCOR I Subcode sync input (IC101)
19 D SENS I Not used
20 CL680 INT I Video CD interruption input (IC505)
21 CL680 HSEL O Video CD select data of the host MPU (IC505)
22 DF LATCH O Digital filter latch output (IC509)
23 CL680 HRDY I Ready signal input for communication to the host MPU (IC505)
24 680 RESET O Video CD reset output (IC505) ÒLÓ : reset
25 JOG1 I Not used
26 JOG2 I Not used
27 CTRL2 O Double control output (IC101) ÒHÓ : double
28 LD ON O Laser diode ON/OFF output
29 IIC1 I/O
IIC convertion microcomputer receive data (Former type), IIC clock input from master control (New type)
30 IIC0 I/OIIC convertion microcomputer transmittion data (Former type), IIC data input from master control (New type)
31 DATA1O O Serial 1 data output (IC505, 509)
32 DATA1I I Serial 1 data input (IC505, 509)
33 CLK1 O Serial 1 clock output
34 SHARPNESS O Sharpness output L : normal, H : sharpness
35 XVLEVEL. DOWN O Fix the video signal output level output
36 SUBQ DATA I Serial 2 data input for subcode sync reading
37 SUBQ CLK I Serial 2 clock input for subcode sync reading
38 P. ON I Not used
39 BUS XRDY I Not used
40 BUS I Not used
41 BUS XHOLD I Not used
42, 43 BUS I Not used
44 BUS XRD I Model selection input ÒLÓ : chinese model, ÒHÓ : except chinese model
45 BUS I V sync signal input 
						

							Ð 83 Ð
Pin NameI/O
Function
46 BUS XWRL I Not used
47 LO. BOOST I Not used
48 AUDIO MUTE O Audio mute output ÒLÓ : mute
49 LOAD OUT I Not used
50 LOAD IN I Not used
51 INSW I Not used
52 OUTSW I Not used
53 MODEL 1 I L : System input (Fixed at ÒLÓ)
54 MODEL 2 I L : System input (Fixed at ÒLÓ)
55 TBLL I Not used
56 TBLR I Not used
57 ENC 1 I Not used
58 ENC 2 I Not used
59 ENC 3 I Not used
60 Ñ I Not used
61 Ñ I Not used
62 VCC Ð +5V power supply
63 Ñ I Not used
64 VSS Ð Ground
65 A7 O Video mute output ÒLÓ
66 to 71 A6 to A1 I Not used
72 U to I I IIC convertion microcomputor transmittion input
73 TEST LED O TEST LED for MPEG decoder
74 TEST 1 I Test mode for Video CD check
75 TEST 2 I Test mode for servo check
76 TEST 3 I Not used
77 DEVICE RESET O Device system rest output ÒLÓ : reset
78 STANDBY I Not used
79 FL CS I Not used
80 FL I Not used
81 to 88 D7 to D0 I Not used
89 MIC CTRL I Not used
90 KEY 1 I Not used
91 KEY 2 I Not used
92 KEY 3 I Not used
93 NY/PAL I NTSC/PAL select switch input
94 MUSIC VOL I Not used
95 KEY 4 I Not used
96 AVSS Ð A/D converter ground
97 MODE. SW I Not used
98 VREF I A/D converter reference voltage input (Connected to +5V)
99 AVCC Ð A/D converter +5V power supply
100 AMP. ON I Not used Pin No. 
						

							Ð 84 Ð
Pin No.Pin Name I/O Function ¥ IC505 CD DECODER, SYSTEM CONTROL (CL680T-D1) (VIDEO (2/3) Board)
1 NC Ð Not used
2 VSS Ð Ground
3 CD-BCK I CD Decode bit clock
4 CD-DATA I CD Decode data
5 CD-LRCK I CD Decode Left or Right channel selection clock
6 CD-C2PO I CD Decode C2 error data
7 NC Ð Not used
8 NC Ð Not used
9 NC Ð Not used
10 MD0 I/O Data bus between Microcode ROM/DRAM and CL680
11 MD1 I/O Data bus between Microcode ROM/DRAM and CL680
12 MD2 I/O Data bus between Microcode ROM/DRAM and CL680
13 MD3 I/O Data bus between Microcode ROM/DRAM and CL680
14 MD4 I/O Data bus between Microcode ROM/DRAM and CL680
15 MD5 I/O Data bus between Microcode ROM/DRAM and CL680
16 VSS Ð Ground
17 MD6 I/O Data bus between Microcode ROM/DRAM and CL680
18 VDD3 Ð +3.3V Power supply
19 MD7 I/O Data bus between Microcode ROM/DRAM and CL680
20 VSS Ð Ground
21 MD8 I/O Data bus between Microcode ROM/DRAM and CL680
22 VDD3 Ð +3.3V Power supply
23 MD9 I/O Data bus between Microcode ROM/DRAM and CL680
24 MD10 I/O Data bus between Microcode ROM/DRAM and CL680
25 MD11 I/O Data bus between Microcode ROM/DRAM and CL680
26 MD12 I/O Data bus between Microcode ROM/DRAM and CL680
27 MD13 I/O Data bus between Microcode ROM/DRAM and CL680
28 MD14 I/O Data bus between Microcode ROM/DRAM and CL680
29 MD15 I/O Data bus between Microcode ROM/DRAM and CL680
30 NC Ð Not used
31 NC Ð Not used
32 NC Ð Not used
33 NC Ð Not used
34 NC Ð Not used
35 NC Ð Not used
36 NC Ð Not used
37 MCE O Chip enable signal to Microcode ROM
38 MWE O Write enable signal to DRAM
39 VSS Ð Ground
40 CAS O Column address strove : Latch the column address to DRAM
41 VDD3 Ð +3.3V power supply
42 RAS0 O Row address strove : Latch row address to DRAM
43 RAS1 Ð Not used
44 MA10 O Address data from CL680 to Microcode ROM
45 MA9 O Address data from CL680 to Microcode ROM 
						

							Ð 85 Ð
Pin NameI/O
FunctionPin No.
46 MA8 O Address data from CL680 to Microcode ROM/DRAM
47 VSS Ð Ground
48 MA7 O Address data from CL680 to Microcode ROM/DRAM
49 VDD3 Ð +3.3V Power supply
50 MA6 O Address data from CL680 to Microcode ROM/DRAM
51 MA5 O Address data from CL680 to Microcode ROM/DRAM
52 MA4 O Address data from CL680 to Microcode ROM/DRAM
53 VSS Ð Ground
54 MA3 O Address data from CL680 to Microcode ROM/DRAM
55 VDD3 Ð +3.3V Power supply
56 MA2 O Address data from CL680 to Microcode ROM/DRAM
57 MA1 O Address data from CL680 to Microcode ROM/DRAM
58 MA0 O Address data from CL680 to Microcode ROM/DRAM
59 PGIO7 I/O Not used
60 RESET I Reset signal input from the host MPU
61 VDDMAX-IN I Fix the maxium input voltage each input pin and I/O pin
62 NC Ð Not used
63 NC Ð Not used
64 NC Ð Not used
65 AGND DAC Ð Ground
66 AVDD DAC Ð +3.3V Power supply
67 COMPOS OUT O Not used
68 AGND DAC Ð Ground
69 Y-OUT O Luminance signal out
70 AVDD DAC Ð +3.3V Power supply
71 AGND DAC Ð Ground
72 RREF I Fix the video signal output level
73 (1.235V) VREF O Reference voltage (+1.235V)
74 AVDD DAC Ð +3.3V Power supply
75 C-OUT O Chrominance signal out
76 AGND DAC Ð Ground
77 (GCK INT) CLK SEL I GCK selection ÒHÓ; Internal, ÒLÓ; External
78 CLK SEL I DA-XCK selection (1)
79 CLK SEL I DA-XCK selection (2)
80 VSS Ð Ground
81 RESERVED I Selection the operation clock 42.336MHz
82 VDD3 Ð +3.3V Power supply
83 DA-EMP Ð Not used
84 RESERVED Ð Not used
85 AGND PLL Ð Ground
86 DA-XCLK I Main reference clock input (16.9344MHz=384fs)
87 AVDD PLL Ð +3.3V
88 PGIO4 I/O Not used
89 PGIO5 I/O Not used
90 PGIO6 I/O Not used 
						

							Ð 86 Ð
Pin NameI/O
Function
Pin No.
91 PGIO0 I/O Not used
92 PGIO8 I/O Not used
93 PGIO2/VSYNC/CSYNC O Vertical synchronized signal of video signal
94 AVDD PLL Ð +3.3V Power supply
95 NC Ð Not used
96 NC Ð Not used
97 NC Ð Not used
98 AGND PLL Ð Ground
99 VSS Ð Ground
100 NC Ð Not used
101 PGIO3/HSYNC I/O Not used
102 VDD3 Ð +3.3V Power supply
103 PGIO1/VCK-OUT I/O Not used
104 VSS Ð Ground
105 GCK I Not used
106 VCK-IN I Main clock for video signal processer
107 GCKOUT/DA-EMP O Not used
108 DA-LRCK O Digital Audio Left or Right channel selection clock
109 VDDMAX-OUT O Fix the maxium output voltage certain output pins (Connected to +5V)
110 DA-DATA O Digital Audio  data
111 DA-BCK O Digital Audio bit clock
112 HD-OUT O Serial Data output from CL680 to the host MPU
113 HRDY O Ready signal CL680 is ready for communication to the host MPU
114 HINT O Request signal for interrupting the host MPU
115 CDG-SCK I/O Not used
116 VSS Ð Ground
117 HCK I Host clock : referance signal for the host bus interface
118 VDD3 Ð +3.3V Power supply
119 HD-IN I Serial Data output ftom the host MPU to CL680
120 VDD3 Ð +3.3V Power supply
121 HSEL I Select data or address of the host MPU
122 CDG-SDATA I Ground (Not used)
123 CDG-VFSY I Ground (Not used)
124 CDG-SOS1 I Ground (Not used)
125 NC Ð Not used
126 NC Ð Not used
127 NC Ð Not used
128 NC Ð Not used 
						

							Ð 87 Ð
¥ IC501 MASTER CONTROL (M30622MA-A09FP) (MAIN Board)
Pin No.Pin NameI/O Function
1 STK-MUTE O Power amp ON/OFF signal output
2 POWER O Power ON/OFF signal output
3 F-RELAY O Front speaker relay control output
4 REAR-RELAY O Rear speaker relay control output (Not used)
5 CD-POWER O CD power on signal output
6 LINE-MUTE O Line mute ON/OFF selection output
7 DBFB-H/L O DBFB H/L select signal output
8, 9 Ð Ð Not used
10 XC-IN I
11 XC-OUT O
12 RESET I Reset signal input
13 X-OUT O XÕtal (16MHz)
14 VSS Ð Ground
15 X-IN I XÕtal (16MHz)
16 VCC Ð Power supply (+5V)
17 NMI I Not used (PULL UP EVER+5V)
18 WAKE UP I WAKE UP (Fixed at fixed at ÒLÓ)
19 SCOR I Subcode data request signal output (Not used)
20 RDS-INT I
21 RDS-DATA I
22 AC-CUT I Back up signal input
23 PL-CLK O Clock signal to pro-logic (Not used)
24 PL-DATA O Data signal to pro-logic (Not used)
25 PL-LAT O Latch signal to pro-logic (Not used)
26 TIMER LED I Timer LED ON/OF
27 PROTECTOR I Speaker protect ON/OF
28 Ð Ð Not used
29 IIC-CLK O Clock output for IC601
30 IIC-DATA O Data output for IC601
31 Ð Ð Not used
32 SQ-DATA I Subcode Q data clock input
33 SQ-CLK I Not used
34 SW-MODE O Not used
35 CD-DATA O CD data output (Not used)
36 RY-SW I Head phone swich detect
37 CD-CLK O CD clock output (Not used)
38 493-LAT O Latch signal output for M62493FP (IC101)
ST-BY LED/
CLOCK-OUT
40 L+R/L-R I
41 BY-PASS I
42 FL-SW I FL switch ON/OFF
43 STBY RELAY I Stand by relay ON/OFF
44 BASS FREQ O FREQ high/low signal for SYNC bass
45, 46 Ð Ð Not used
47 493-DATA O Data output for M62493FP (IC101)
48 493-CLK O Clock output for M62493FP (IC101)
49 ST-MUTE O Tuned mute signal outputXÕtal (32.768MHz)
RDS data interrupt input
39O Clock ond stand by LED signal output
Not used 
						

							Ð 88 Ð
Pin No.Pin NameI/O Function
50 STEREO I Stereo detection for tuner
51 TUNED I Tuned detection for tuner
52 ST-CE O Tuner chip enable output
53 ST-DOUT O Tuner data output
54 ST-DIN I Tuner data input
55 ST-CLK O Tuned clock output
56 SENS I BD Condition signal input (Not used)
57 HDLD O Mode hold signal output (Not used)
58 XLT O CD latch signal output (Not used)
59 XRST O CD reset signal output
60 DISC-SENS I Slit sensor of disc table input
61 T-SENS I CD table detection signal input
62 VCC Ð Power supply (+5V)
63 TBL-L O Table motor control output
64 VSS Ð Ground
65 TBL-R O Table motor control output
66 LOAD-OUT O
67 LOAD-IN O
68 ENC 3/UP-SW I
69 ENC 2/DISC-LED I
70 ENC 1 I
71 OUT-OPEN O Loading out detection signal output
72 B-TRG O
73 A-TRG O
74 CAP-M-COT2 O Capstan motor control 1(-) signal output
75 CAP-M-COT1 O Capstan motor control 2(-) signal output
76 CAP-M-H/L O Capstan motor H/L speed select signal output
77 AMS-IN I Connected to ground
78 TC-MUTE O TC mute ON/OFF selection output
79 R/PB/PAS O REC/PB/PASS selection output
80 NR-ON/OFF O NR ON/OFF signal output
81 REC-MUTE O REC mute ON/OFF selection output
82 BIAS O Bias ON/OFF selection output
83 EQ-H/N O Equalizer H/N select output
84 PB-A/B O PB Deck A/Deck B select output
85 ALC O ALC ON/OFF output
86 B-PLAY-SW I Deck B play detect
87 A-PLAY-SW I Deck A play detect
88 A-HALF I Deck A cassette detect
89 B-HALF I Deck B cassette detect
90 B-SHUT I B Deck reel pulse detector
91 A-SHUT I A Deck reel pulse detector
92 SOFT-TEST O Software test port
93, 94 KEY/CD-ADJ I CD adjust point port
95 MODEL IN I Version select signal input
96 AVSS Ð Ground
97 SPEC-IN I Version select signal input
98 VREF I Analog reference voltage input
99 AVCC Ð Analog power supply
100 TC-RELAY O REC/PB head selection output for IC602Loading motor control signal output
Disc tray address detect encoder input
Trigger motor control output 
						

							Ð 89 Ð
¥ IC601 DISPLAY CONTROL (TMP88CS76F-6005) (PANEL Board)
Pin No.Pin Name I/O Function
1 SIRCS I Remote commander signal input
2 JOG A I Rotary encoder (S601) pulse input
3 L/P SCK O LED/PAD clock output
4 LED LA O LED latch output
5 L/P DAT O LED/PAD data output
6 PAD LA O PAD latch output
7 L SEL O LED select signal
8 JOG B I Rotary encoder (S601) pulse input
9 VOL A I
10 VOL B I
11 to 14 KEY 0 to KEY 3 I Key input
15 GRADATION L O LED gradation signal (left)
16 S LOW (F01) O Sptctrum analyzer input (Super low flegency) (40Hz)
17 BPF 1 (F02) O Sptctrum analyzer input (100Hz)
18 BPF 2 O Sptctrum analyzer input (400Hz)
19 BPF 3 O Sptctrum analyzer input (2KHz)
20 BPF 4 O Sptctrum analyzer input (6KHz)
21 ALL B (L+R) I Sptctrum analyzer input (all band)
22 GLADATION O
R/WAKE UP
23 VSS I/O Ð Ground
24 VASS Ð Ground
25 VAref I Analog reference voltage input
26 VDD I/O Ð Power supply (+5V)
27 to 40 G 18 to G 5 O FL gride signal output
41 VDD VFT Ð Power supply (+5V)
42 to 45 G 4 to G 1 O FL gride signal output
46 to 67 S 1 to S 22 O FL segment signal output
68 VKK Ð Power supply (-30V)
69 VDD for CPU Ð Power supply (+5V)
70 X IN I XÕtal (12.5MHz)
71 VSS for CPU Ð Ground
72 X OUT O XÕtal (12.5MHz)
73 RESET I Reset signal input from main controller
74 CH for PAD O Channel signal output for PAD
75 BUSY for PAD O Busy signal output for PAD
76 TEST I Connected ground
77 Ð Ð Not used (to ground)
78 IIC DATA O Data output for IC501
79 IIC CLK O Clock output for IC501
80 Ð Ð Not used (to ground)Rotary encoder (S602) pulse input
LED gradation signal (right)/WAKE UP signal 
						

							Ð 90 Ð
SECTION  9
EXPLODED VIEWS
9-1. CASE SECTION
NOTE:
¥ Items marked Ò*Ó 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 number in
the exploded views are not supplied.
¥ Hardware (# mark) list and accessories and pack-
ing materials are given in the last of this parts list.
¥ Color Indication of Appearance Parts Example:
KNOB, BALANCE (WHITE)
å
Cabinets color¥ Abbreviation
EA : Saudi Arabia model
HK : Hong Kong model
SP : Singapore model
MY : Malaysia model
TW : Taiwan model
IA : Indonesia model
TH : Thai modelThe components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
*1 4-996-716-01 HOLDER (CDM)
2 3-363-099-41 SCREW (CASE 3 TP2)(GRAY)
2 3-363-099-71 SCREW (CASE 3 TP2)(SILVER)
3 3-363-099-01 SCREW (CASE 3 TP2)(GRAY)
3 3-363-099-11 SCREW (CASE 3 TP2)(SILVER)
*4 4-221-149-21 CASE (SILVER)
*4 4-221-149-61 CASE (GRAY)
5 1-233-545-11 TUNER UNIT (TH)
5 1-233-546-13 ENCAPSULATED COMPONENT (EXCEPT TH)
4
2
2 3
1
7
86
6
1
3
5
#1
#2#2
#2 #2#2
#13 #13#1CDM38L-5BD34L
Front panel#1
#1#1 #1
#1
Including Panel board
(Ref No. 118)
Including Trans board
(Ref No. 52)not supplied
11
9
10
6 4-951-620-01 SCREW (2.6x8), +BVTP
7 X-4950-965-1 PANEL ASSY, LOADING (VX8)(GRAY)
7 X-4951-028-1 PANEL ASSY, LOADING (VX8)(SILVER)
7 X-4951-629-1 PANEL ASSY, LOADING (VX8J)
8 4-991-781-01 EMBLEM (VCD)
9 1-790-927-11 WIRE (FLAT TYPE) (13 CORE)
10 1-775-212-11 WIRE (FLAT TYPE) (23 CORE)
11 A-4724-727-A VIDEO BOARD, COMPLETE