Sony CDXMP-70 Service manual
CDX-MP70
SERVICE MANUAL
Ver 1.0 2002. 02
• The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
23 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
SPECIFICATIONS
CD player section
Signal-to-noise ratio 95 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
FM
Tuning range 87.5 – 107.9 MHz (US, Canadian Model)
87.5 – 108.0 MHz (AEP, UK Model)
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 8 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 66 dB (stereo),
72 dB (mono)
Harmonic distortion at 1 kHz
0.6% (stereo),
0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
AM (US, Canadian Model)
Tuning range 530 – 1,710 kHz
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
US Model
Canadian Model
AEP Model
UK Model
Model Name Using Similar Mechanism NEW
CD Drive Mechanism Type MG-550M-156
Optical Pick-up Name DAX-23E
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 52 W × 4 (at 4 ohms)
General
Outputs Audio outputs (front/rear)
Subwoofer output (mono)
Power antenna relay control terminal
Power amplifier control terminal
Inputs Telephone ATT control terminal
Illumination control terminal
BUS control input terminal
BUS audio input terminal
AUX IN terminal
Remote controller input terminal
Antenna input terminal
Tone controls Bass ±8 dB at 100 Hz
Treble ±8 dB at 10 kHz
Loudness +8 dB at 100 Hz
+2 dB at 10 kHz
– Continued on next page –
MW/LW (AEP, UK Model)
Tuning range MW : 531 – 1,602 kHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity MW : 30 µV
9-873-558-01
2002B0400-1
© 2002. 02
LW : 153 – 279 kHz
LW : 40 µV
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation
FM/AM COMPACT DISC PLAYER
US, Canadian Model
FM/MW/LW COMPACT DISC PLAYER
AEP, UK Model
1
CDX-MP70
k
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 178 × 50 × 182 mm
(7 1/8 × 2 × 7 1/4 in.) (w/h/d)
Mounting dimensions Approx. 182 × 53 × 161 mm
(7 1/4 × 2 1/8 × 6 3/8 in.) (w/h/d)
Mass Approx. 1.6 kg
(3 lb. 9 oz.)
Supplied accessories Parts for installation and connections (1 set)
Front panel case (1)
Card remote commander RM-X112
(US, Canadian Model)
Note
This unit cannot be connected to a digital preamplifier or an equalizer.
Design and specifications are subject to change without
notice.
SERVICE NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
• AEP, UK model
This label is located on the bottom of the chassis.
optical pick-up bloc
semi-fixed resistor
TEST DISCS
This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability:
CD-R test disc TCD-R082LMT (Part No. J-2501-063-1)
CD-RW test disc TCD-W082L (Part No. J-2501-063-2)
This label is located on the drive unit’s internal chassis.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY P ARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
2
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
CDX-MP70
Notes on CD-Rs (recordable CDs)/CD-RWs (rewritable
CDs)
This unit can play the following discs:
Type of discs Label on the disc
Audio CD
MP3 files
• Some CD-Rs/CD-RWs (depending on the equipment used for
its recording or the condition of the disc) may not play on this
unit.
• You cannot play a CD-R/CD-RW tha t is not finalized∗.
• You can play MP3 files recorded on CD-ROMs, CD-Rs, and
CD-RWs.
• A CD-R/CD-RW to which a session can be added can be played.
∗ A process necessary for a recorded CD-R/CD-RW disc to be
played on the audio CD player.
NOTE FOR THE OPENING OF THE FRONT PANEL
In this set, the front panel is lowered to below the bottom face when
it is opened.
When servicing the set, place it on a stand having a height of about
2 cm.
TABLE OF CONTENTS
1. GENERAL
Location of Controls (US, Canadian Model) ..........................4
Location of Controls (AEP, UK Model) .................................. 4
Connections (US, Canadian Model)........................................ 5
Connections (AEP, UK Model) ............................................... 6
2. DISASSEMBLY
2-1. Base Panel Assy .................................................................. 7
2-2. Cover (Panel)....................................................................... 8
2-3. CD Mechanism Block ......................................................... 8
2-4. Cam Block Assy, Motor Block Assy................................... 9
2-5. Main Board ......................................................................... 9
2-6. Heat Sink ........................................................................... 10
2-7. Mechanism Block (M) Assy.............................................. 10
2-8. Tray (UM) Assy ................................................................11
2-9. MD Assy ........................................................................... 11
2-10. Servo Board....................................................................... 12
2-11. Optical Pick-up Block ....................................................... 12
3. PHASE ALIGNMENT
3-1. Gear (Cam L) .................................................................... 13
3-2. Gear (Cam R) .................................................................... 13
4. DIAGRAMS
4-1. IC Pin Descriptions ........................................................... 14
4-2. Block Diagram –CD Section–........................................... 22
4-3. Block Diagram –Audio, Display Section–........................ 23
4-4. Block Diagram –Bus Control, Power Section–................. 24
4-5. Circuit Boards Location .................................................... 25
4-6. Printed Wiring Board –CD Mechanism Section– ............. 26
4-7. Schematic Diagram –CD Mechanism Section (1/2)– ....... 28
4-8. Schematic Diagram –CD Mechanism Section (2/2)– ....... 29
4-9. Printed Wiring Boards –Main Section– ............................ 30
4-10. Schematic Diagram –Main Section (1/3)– ........................ 32
4-11. Schematic Diagram –Main Section (2/3)– ........................ 33
4-12. Schematic Diagram –Main Section (3/3)– ........................ 34
4-13. Schematic Diagram –Display Section–............................. 35
4-14. Printed Wiring Board –Display Section– .......................... 36
stand
5. EXPLODED VIEWS
5-1. Chassis Section ................................................................. 44
5-2. Cam Section ...................................................................... 45
5-3. Main Board Section .......................................................... 46
5-4. Front panel Assy Section................................................... 47
5-5. CD Mechanism Section (1) ............................................... 48
5-6. CD Mechanism Section (2) ............................................... 49
5-7. CD Mechanism Deck Section ........................................... 50
6. ELECTRICAL PARTS LIST ........................................ 51
3
CDX-MP70
(US, Canadian Model)
SECTION 1
GENERAL
This section is extracted
from instruction manual.
(AEP, UK Model)
4
Connections (US, Canadian Model)
CDX-MP70
55
CDX-MP70
Connections (AEP, UK Model)
66
SECTION 2
DISASSEMBLY
Note : This set can be disassemble according to the following sequence.
SET
CDX-MP70
2-1. BASE PANEL ASSY
(Page 7)
2-2. COVER (PANEL)
(Page 8)
2-3. CD MECHANISM BLOCK
(Page 8)
2-4. CAM BLOCK ASSY,
MOTOR BLOCK ASSY
(Page 9)
2-5. MAIN BOARD
(Page 9)
2-6. HEAT SINK
(Page 10)
2-7. MECHANISM BLOCK (M) ASSY
(Page 10)
2-8. TRAY (UM) ASSY
(Page 11)
2-9. MD ASSY
(Page 11)
2-10. SERVO BOARD
(Page 12)
2-11. OPTICAL PICK-UP BLOCK
(Page 12)
Note : Follow the disassembly procedure in the numerical order given.
2-1. BASE PANEL ASSY
3
shaft (base panel, D)
flexible board
2
stop ring 2.0, type-E
4
shaft (base panel, D)
1
stop ring 2.0, type-E
5
base panel assy
(Take care not to pull the
flexible board excessively)
7
CDX-MP70
4
2-2. COVER (PANEL)
4
PTT 2.6x6
7
claw
1
PTT 2.6x6
2
bracket (cover)
3
PTT 2.6x6
2-3. CD MECHANISM BLOCK
4
CD mechanism block
2
PTT 2.6x4
6
claw
5
PTT 2.6x6
8
plate (CD), sub
(Take care not to pull the
flexible board excessively)
5
conector
3
CN401
1
PTT 2.6x
8
2-4. CAM BLOCK ASSY, MOTOR BLOCK ASSY
6
4
PTT 2.6x6
5
6
motor block assy
3
CN602
cover (protection)
1
PTT 2.6x6
2
cam block assy
CDX-MP70
2-5. MAIN BOARD
5
3
PTT 2.6x6
ground point
MAIN board
4
PTT 2.6x6
ground point
1
PTT 2.6x6
2
PTT 2.6x
9
CDX-MP70
6
6
2-6. HEAT SINK
5
heat sink
4
PTT 2.6x
2-7. MECHANISM BLOCK (M) ASSY
shaft
chassis (ML) assy
shaft
1
PTT 2.6x6
2
PTT 2.6x6
2
bracket (tray)
3
PTT 2.6x10
1
PTT 2.6x
10
5
6
mechanical block (M) assy
3
P 1.7x1.8
4
chassis (MR)
2-8. TRAY (UM) ASSY
)
2
screw ( M1.7x2.5)
4
1
screw ( M1.7x2.5)
5
tray (UM) assy
3
screw ( M1.7x2.5
CDX-MP70
2-9. MD ASSY
2
CN2
1
CN3
5
insulator
3
7
CN1
4
insulator
6
insulator
8
MD assy
11
CDX-MP70
k
t
2-10. SERVO BOARD
SW1
1
SW2
5
SW3
SW4
4
screw (M 2x3.5), toothed loc
6
SERVO board
7
CN4
2-11. OPTICAL PICK-UP BLOCK
5
motor assy, sled (M2)
6
gear (B)
3
CN6
1
B 1.7x5
2
motor assy, turntable (M1)
chassis
8
retainer, shaf
2
12
qs
pick-up block, optical
9
B 1.4x2.3
4
cover, gear
3
B 1.7x5
q;
rack
qd
shaft, standard
7
qa
screw (feed) assy
P 1.4x3.5
SECTION 3
6
g
y
PHASE ALIGNMENT
3-1. GEAR (CAM L)
•Align the gear (cam L) position setting hole with the center mark on
the bracket before screwing the motor block assy to the mechanism
chassis.
gear (cam L) position setting hole
center mark
CDX-MP70
1
motor block assy
2
PTT 2.6x
3-2. GEAR (CAM R)
1 Align the gear (cam R) position setting hole with the center mark
on the bracket before screwing the cam block assy to the
mechanism chassis.
2 Touch the gear (cam R) with fingers in the direction of rotation
and make sure that there is no phase difference with the R-side
position setting hole.
ear (cam R) position setting hole
center mark
cam block ass
13
CDX-MP70
SECTION 4
DIAGRAMS
4-1. IC PIN DESCRIPTIONS
• IC5 CXD9684R-004 (AUDIO INTERFACE) (SERVO BOARD)
Pin No. Pin Name I/O Pin Description
1 RESET I Reset input
2 MIMD I CPU interface mode select signal
3 AD0 I CPU interface chip select signal
4 AD1 I CPU interface latch pulse signal
5 MIDIO I/O CPU interface data input/output
6 MICK I CPU interface clock signal
7 AD2/MIACK I CPU interface acknowledge signal
8 VDDT — Power supply pin (+3.3 V)
9 SDO O Data output
10 AD3/BCKO O Bit output
11 AD4/LRCKO O LR clock output
12 SDI0 I Data input 0
13 BCKIA I Bit clock input A
14 LRCKIA I LR clock input A
15 AD5/SDI1 I Data input 1
16 CE/BCKIB I Bit clock input B
17 OE/LRCKIB I LR clock input B
18 VDD — Power supply pin (+2.5 V)
19 STANDBY I Standby mode control signal
20 VSS — Ground
21 VSSL — Ground for DAC Lch
22 VRAL — Reference voltage pin for DAC Lch
23 LO O DAC Lch output
24 VDAL — Power supply pin (+2.5 V) for DAC Lch
25 VDAR — Power supply pin (+2.5 V) for DAC Rch
26 RO O DAC Rch output
27 VRAR — Reference voltage pin for DAC Rch
28 VSSR — Ground for DAC Rch
29 TESTP I Test pin
30 CKS I VCO select signal
31 AD12/PO0 O Address output 0
32 AD11/PO1 O Address output 1
33 AD10/PO2 O Address output 2
34 AD9/PO3 O Address output 3
35 VDDT — Power supply pin (+3.3 V)
36 AD8/PO4 O Address output 4
37 AD7/PO5 O Address output 5
38 AD6/PO6 O Address output 6
39 PO7 O Address output 7
40 VSS — Ground
41 AD13/FI0 I Flag input 0
42 AD14/FI1 I Flag input 1
43 WR/FI2 I Flag input 2
44 AD16/FI3 I Flag input 3
45 AD15/IRQ I/O External interrupt signal
46 IO0/PI0 I Data input 0
47 IO1/PI1 I Data input 1
48 VSS — Ground
49 IO2/PI2 I Data input 2
50 IO3/PI3 I Data input 3
51 IO4/PI4 I Data input 4
14
Pin No. Pin Name I/O Pin Description
52 VDD — Power supply pin (+2.5 V)
53 IO5/PI5 I Data input 5
54 IO6/BOOT I Boot control signal
55 IO7/TXO I SPDIF signal
56 VSSP — Ground
57 PDO O PLL phase detect signal
58 VCOI I VCO control voltage input
59 VDDP — Power supply pin (+2.5 V) for VCO
60 CKI/ACKO I/O External clock input/audio clock output
61 VDDX — Power supply pin (+2.5 V) for crystal oscillator
62 X1 I Crystal oscillator (16.934 MHz)
63 X0 O Crystal oscillator (16.934 MHz)
64 VSSX — Ground
CDX-MP70
15
CDX-MP70
• IC11 HD6432238RWN13TEI (CD SYSTEM CONTROL) (SERVO BOARD)
Pin No. Pin Name I/O Pin Description
1 TEST I Test mode select signal
2 DEC XRST O DEC reset output
3 DEC STBY O DEC standby mode control signal
4 XRDE O DRAM data read-out enable signal
5 (NCO) O Not used. (Open)
6 XWRE O DRAM write-in enable signal
7 SCLK O SENS read-out serial clock signal
8 SENS I SENS signal
9 CD CLK O CD servo serial clock signal
10 CD DAT O CD servo serial data output
11 CD LAT O CD servo latch signal
12 CVCC — Power supply pin (+3.3 V)
13 DAC MUTE O DAC mute control signal
14 VSS — Ground
15 MUTE O Audio mute control signal
16 XRST O CD servo reset signal
17 XQOK O CD servo sub-code Q OK signal
18 EMPH O Emphasis control signal
19 GFS I GFS signal
20 FOK I FOK signal
21 APC2 O APC control signal 2
22 APC1 O APC control signal 1
23 SPST O Spindle kick signal
24 RW SEL O Not used. (Open)
25 RF SW O Not used. (Open)
26 SIZE I Not used. (Open)
27 D IN I Not used. (Open)
28 D OUT I Not used. (Open)
29 LIM SW I PU inner detect SW signal
30 PSB O Mute signal
31 PC TX O Bus data output
32 PC RX I Bus data input
33 IN SW I Not used. (Open)
34 LM LO O Not used. (Open)
35 LM EJ O Not used. (Open)
36 EJECT OK I Front panel open mode signal
37 CLOSE OK O Not used. (Open)
38 SCOR I Sub-code sync detect signal
39 TRAY LAMP O Not used. (Open)
40 GRSCOR I DRAM controller sub-code sync detect signal
41 HSTX O High speed signal
42 AVSS — Ground
43 TE BAL ADJ O TE balance adjustment
44 DRAM O Not used. (Open)
45 D SW I Disc chucking detect signal
46 TRAY CUR I Tray current detect signal
47 KEY0 I Test mode key SW input
48 KEY1 I Test mode rotary SW input
49 (NCO) I Connecting to ground in this set.
50 (NCO) I Connecting to ground in this set.
51 TEMP I Tempareture detect signal
52 (NCO) I Connecting to ground in this set.
16
Pin No. Pin Name I/O Pin Description
53 AVREF — Reference voltage pin (+3.3 V) for A/D converter
54 AVCC — Power supply pin (+3.3 V) for A/D converter
55 MD0 — CPU operation mode setting
56 MD1 — CPU operation mode setting
57 OSC2 — Not used. (Open)
58 OSC1 — Connecting to ground in this set.
59 RSTX I CPU reset signal
60 NMI O Connecting to VCC (+3.3 V) in this set.
61 STBY — Connecting to VCC (+3.3 V) in this set.
62 VCC — Power supply pin (+3.3 V)
63 XTAL — Crystal oscillator (12.288 MHz)
64 VSS — Ground
65 XTXAL — Crystal oscillator (12.288 MHz)
66 F WE — Flash write enable
67 MD2 — CPU operation mode setting
68 FL BOOT I Flash write-in mode select signal
69 FL W O Flash write control signal
70 CD ON O CD servo power control signal
71 CDM ON O Not used. (Open)
72 DEC INT I DEC interrupt signal
73 (NCO) O Not used. (Open)
74 LINK OFF O Link off signal
75 EJECT KEY I Eject key signal
76 UNI SO O SONY bus serial data output
77 UNI SI I SONY bus serial data input
78 UNI CK I SONY bus clock signal
79 (NCO) O Not used. (Open)
80 SDA I/O I2C interface data input/output
81 SCL O I2C interface clock signal
82, 83 (NCO) O Not used. (Open)
84 SQSO I Sub-code Q data input
85 SQCK O Sub-code Q read-out clock signal
86 LED DAT O LED data output
87 LED CLK O LED clock signal
88 LED LAT O LED latch signal
89, 90 (NCO) O Not used. (Open)
91 BUS ON I Bus ON signal
92 BU CHK I Back up voltage detect signal
93 (NCO) O Not used. (Open)
94 (NCO) O Not used. (Open)
95, 96 (NCO) O Not used. (Open)
97 TEXT SEL I CD text function select
98 ESP SEL I ESP function select
99 CF SEL I Custom file function select
100 DOUT SEL I Digital-out select
CDX-MP70
17
CDX-MP70
• IC501 MB90574CPMT-G-361-BNDE1 (SYSTEM CONTROL) (MAIN BOARD) (AEP, UK model)
• IC501 MB90574CPMT-G-362-BNDE1 (SYSTEM CONTROL) (MAIN BOARD) (US, Canadian model)
Pin No. Pin Name I/O Pin Description
1 – 4 (NCO) O Not used. (Open)
5 ATT O System mute control signal
6 SYS RST O System reset signal
7 (NCO) O Not used. (Open)
8 VCC — Power supply pin (+5 V)
9 AMP ATT O Power amplifier mute signal
10 T.ROM SDA I/O Tuner unit EEPROM data input/output
11 T.ROM SCK O Tuner unit EEPROM clock output
12 NOSE SW/RX I Nose SW detect signal
13 TX O Flash CPU write-in data output
14 BUS ON O BUS ON control signal
15 BEEP O Beep signal
16 TEL ATT I Telephone mute detect signal
17 UNI SI I SONY BUS data input
18 UNI SO O SONY BUS data output
19 UNI CLK O SONY BUS clock output
20 – 23 (NCO) O Not used. (Open)
24 SIRCS I Wireless remote data input
25 – 30 (NCO) O Not used. (Open)
31 E VOL ATT O Electronic volume mute signal
32 (NCO) O Not used. (Open)
33 VSS — Ground
34 C — Condenser pin for voltage stabilizer
35 CDON IN I CD On signal
36 (NCO) O Not used. (Open)
37 FSW SFT O OSC frequency shift signal for DC/DC conv.
38 DVCC — Power supply pin (+5 V)
39 DVSS — Ground
40, 41 (NCO) O Not used. (Open)
42 AVCC — Power supply pin (+5 V)
43 AVRH — Power supply pin (+5 V)
44 AVRL — Ground
45 AVSS — Ground
46 KEY IN0 I Key input 0
47 TEMP I Tempareture detect signal
48 RC IN0 I Rotary commander input 0
49 FP-I DET I Front panel motor current detect signal
50 QUALITY I Tuner noise detction signal (AEP, UK model)
51 TR-I DET I Tray motor current detect signal
52 MPTH I Tuner multi-pass detect signal (AEP, UK model)
53 VSM I S-meter voltage detect signal
54 VCC — Power supply pin (+5 V)
55 AMP ON O AMP ON control signal
56 NS MASK O Tuner noise masking control signal
57 DDC ON O DC/DC converter power control signal
58 OPEN SENS I Tray open detection signal
59 CLOSE SENS I Traay close detect signal
60 LED ON O Tray illumination ON signal
61 T CLOSE O Tray loading motor output
62 T OPEN O Tray loading motor output
63 VSS — Ground
18
Pin No. Pin Name I/O Pin Description
64 (NCO) O Not used. (Open)
65 FSW IN I Oscillation frequency count input
66 – 68 (NCO) O Not used. (Open)
69 FLASH W I Flash write-in mode detect signal
70 I2C SIO O I2C serial data output
71 I2C CKO O I2C serial clock output
72 KEYACK I Key acknowledge signal
73 X1A — Crystal oscillator (32.768 kHz)
74 X0A — Crystal oscillator (32.768 kHz)
75 DAVN I RDS data acquisition detect signal (AEP, UK model)
76 (NCO) O Not used. (Open)
77 BU IN I Back-up power detect signal
78 (NCO) O Not used. (Open)
79 RC IN1 I Rotary commander input 1
80 AD ON O A/D converter power control signal
81 ACC IN I Accessory key ON signal
82 FLASH P ON O Flash power ON control signal
83 POW ON O Audio circuit power ON control signal
84 TEST IN I Test mode initial setting detect signal
85 RAM BU I RAM reset detect signal
86 HSTX I Hardware standby input
87 MD2 I Connecting to ground in this set.
88 MD1 I Connecting to VCC (+5 V) in this set.
89 MD0 I Connecting to VCC (+5 V) in this set.
90 RSTX I Reset input
91 VSS — Ground
92 X0 — Crystal oscillator (3.68 MHz)
93 X1 — Crystal oscillator (3.68 MHz)
94 VCC — Power supply pin (+5 V)
95 ILL IN I Illumination dimmer control signal
96 MID SW O Not used. (Open)
97 FP OPEN O OPEN/CLOSE motor control signal
98 FP CLOSE O OPEN/CLOSE motor control signal
99 CLOSE SW I Close SW detection signal
100 OPEN SW I Open SW detection signal
101 MOTOR ON O Motor power supply ON signal
102 (NCO) O Not used. (Open)
103 (NCO) O Not used.
104 DEST SEL1 I Destination selector signal 1
105 DEST SEL2 I Destination selector signal 2
106 BOOT O Display CPU write-in control signal
107 RE RA I Rotary encoder input (Right/AMS)
108 RE RB I Rotary encoder input (Right/AMS)
109 RE LA I Rotary encoder input (Left/VOL)
110 RE LB I Rotary encoder input (Left/VOL)
111 – 113 (NCO) O Not used. (Open)
114 TUN ON O Tuner ON signal
115 – 118 (NCO) O Not used. (Open)
119 VSS — Ground
120 (NCO) O Not used. (Open)
CDX-MP70
19
CDX-MP70
• IC702 HD6432398-A02 (DISPLAY CONTROL) (MAIN BOARD)
Pin No. Pin Name I/O Pin Description
1 SA CLK O Spectrum analyzer clock output
2 (NCO) O Not used. (Open)
3 VSS — Ground
4 (NCO) — Not used. (Open)
5 VCC — Power supply pin (+5 V)
6 – 9 (NCO) O Not used. (Open)
10 VSS — Ground
11 – 18 (NCO) O Not used. (Open)
19 VSS — Ground
20 – 27 (NCO) O Not used. (Open)
28 VSS — Ground
29 – 32 (NCO) O Not used. (Open)
33 SPE LAT I Spectrum analyzer LAT signal
34 BU IN I Back up voltage detect signal
35, 36 VSS — Ground
37 (NCO) O Not used. (Open)
38 BUS ON I BUS ON signal
39 VCC — Power supply pin (+5 V)
40 – 43 (NCO) O Not used. (Open)
44 VSS — Ground
45 – 48 (NCO) O Not used. (Open)
49 SPE I Spectrum analyzer enable signal
50 LINK OFF O LINK OFF signal
51 (NCO) O Not used. (Open)
52 ILL ON O Illumination control signal
53 VSS — Ground
54 – 56 (NCO) O Not used. (Open)
57 BOOT I Display CPU write-in control signal
58 VCC — Power supply pin (+5 V)
59 (NCO) O Not used. (Open)
60 LCD SO/TX O LCD data output/UART signal output
61 (NCO) O Not used. (Open)
62 RX I UART signal input
63 L RST O Reset signal
64 LCD CKO O LCD clock signal
65 VSS — Ground
66 LCD CEO O LCD driver chip enable
67, 68 VSS — Ground
69 – 78 (NCO) O Not used. (Open)
79 FL W O Not used. (Open)
80 VCL I Connecting to ground through a capacitor.
81 SYS RES I Reset signal
82 NMI I Non maskable interrupt signal
83 STBY I Stanby mode signal
84 VCC — Power supply pin (+5 V)
85 XTAL — Crystal oscillator (18.432 MHz)
86 EXTAL — Crystal oscillator (18.432 MHz)
87 VSS — Ground
88 (NCO) O Not used. (Open)
89 VCC — Power supply pin (+5 V)
90 – 96 (NCO) O Not used. (Open)
97 UNI SO O Bus data output
20
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