Yamaha AO-8 Service Manual

ANALOG OUTPUT BOX

SERVICE MANUAL

• AO8-DA8

011506

PA

200004**-250000

CONTENTS

REVISED PAGE LIST ··························································· 2-1 SPECIFICATIONS································································· 3-1 PANEL LAYOUT···································································· 3-2 DIMENSIONS········································································ 3-3 CONNECTOR CIRCUIT DIAGRAM ········································· 4

BLOCK DIAGRAM···································································· 6

DISASSEMBLY PROCEDURE················································· 7

LSI PIN DESCRIPTION·························································· 11

IC BLOCK DIAGRAM ····························································· 14 CIRCUIT BOARDS································································· 15 INSPECTION·········································································· 20 TEST PROGRAM··································································· 22 ERROR MESSAGES······························································ 27 PARTS LIST CIRCUIT DIAGRAM

HAMAMATSU, JAPAN

****

K '01.03

AO8

REVISED PAGE LIST

ITEM

SPECIFICATIONS PANEL LAYOUT DIMENSIONS CONNECTOR CIRCUIT DIAGRAM

DISASSEMBLY PROCEDURE IC BLOCK DIAGRAM CIRCUIT BOARDS

AD, IPC4, DR, PSB, LED2 DC, MB1

IFC3 INSPECTION TEST PROGRAM

ERROR MESSAGES

PAGE

3-1 3-2 3-3

5

7,9

14

15~19

16 17

19 20~21 22~26

41

<

PARTS LIST>

OVERALL ASSEMBLY SIDE PANEL ASSEMBLY MOTHER ASSEMBLY ELECTRICAL PARTS

ITEM

PAGE

2, 3, 4

4, 5

6

7~12

2-1

AO8

<

CIRCUIT DIAGRAM

UNC CIRCUIT DIAGRAM 003 MB1 CIRCUIT DIAGRAM 002

IFC3 CIRCUIT DIAGRAM 002

IPC2 CIRCUIT DIAGRAM IPC4 CIRCUIT DIAGRAM

>

ITEM

003 004 005

003

004 005 006

007

PAGE

4 5 6 7 8

9 10

11 12 13

14 15 16

AOCOM CIRCUIT DIAGRAM 002

003

18 19

2-2

AO8

2-2

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.

IMPORTANT NOTICE

This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal

injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative.

IMPORTANT: This presentation or sale of this manual to any individual or firm does not constitute authorization, certification,

recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.

The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.

WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have

accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus).

IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the

unit.

WARNING

Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed.

IMPORTANT NOTICE FOR THE UNITED KINGDOM

Connecting the Plug and Cord

IMPORTANT. The wires in this main lead are coloured in

accordance with the following code:

BLUE: NEUTRAL BROWN: LIVE

As the colours of the wires in the main lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:

The BLUE wire must be connected to the terminal that is marked with the letter N (or coloured BLACK).

The BROWN wire must be connected to the terminal that is marked with the letter L (or coloured RED).

Be certain that neither core is connected to the earth terminal of the three pin plug.

SPECIFICATIONS

AO8

3-1

Sampling frequency (external sync)

Power supply

Power consumption Dimensions (W x H x D) Weight Operating temperature Power cable length Cooling fan speed Accessories

39.69 kHz – 50.88 kHz

USA and Canada: 120 V, 60 Hz

Others: 230 V, 50 Hz

120 W

480 mm x 141.5 mm x 466.8 mm

15.4 kg

10 – 35 ˚C

2.1 m

always fixed

Connection cable (68-pin, D-sub, half-pitch) x 1, Length: 3 m

I/O connectors

INPUT A, B, C

WORD CLOCK IN

WORD CLOCK OUT

Level

RS-422 TTL/75 Ω (ON/OFF) TTL/75 Ω

Type

D-sub, half-pitch, 68-pin connector (female)

BNC Connector

Digital I/Os

Card

LMY4-AD

Input

Channel 1 – 4

Slots

*

The illustration shows the AO8 analog output box.

1234567

UNIT NO.

INPUT SELECTOR

A

B

POWER ON/ OFF

8

ANALOG OUTPUT BOX

OUTPUT UNIT ID

INPUT SELECTOR

A

B

POWER

ON/ OFF

ANALOG OUTPUT BOX

75

IN

BA

INPUT

ON

OFF

OUT

WORD CLOCK

BA

INPUT

ON

OFF

OUT

WORD CLOCK

75

IN

1

2

3

5

6

4

1

OUTPUT UNIT ID indicator

2

INPUT SELECTOR switch

3

POWER ON/OFF

4

INPUT connectors A and B

5

WORD CLOCK IN jack, ON/OFF switch

6

WORD CLOCK OUT jack

Front Panel

Rear Panel

AO8

3-2

PANEL LAYOUT

455

466.8

480

430

132 (3U)

141.5

OUTPUT UNIT ID

INPUT SELECTOR

A

B

POWER ON/ OFF

1234567 8

ANALOG OUTPUT BOX

9.5

Unit: mm

DIMENSIONS

AO8

3-3

AO8

IFC3

PSB

KEC-92523-2

[POWER ON/OFF]

3P

CN600

14P

CN100

5P

CN127

**

LED2

[OUTPUT

UNIT ID]

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

SLOT NO.

4P

CN126

4P

CN125

6P

CN124

4P

CN123

6P

CN122

4P

CN121

20P

CN120

30P

CN119

CN109

100P

UNC

CN108

100P

CN107

100P

CN106

100P

CN105

100P

CN104

100P

CN103

100P

CN102

100P

CN101

100P

8P

CN117

8P

CN116

8P

CN115

8P

CN114

8P

CN113

8P

CN112

8P

CN111

8P

CN110

6P

CN118

MB1

POWER

TRANSFORMER

**

6P

CN104

13P

CN605

13P

CN606

10P

CN607

10P

CN608

5P

CN106

20P

CN102

30P

CN101

14P

CN103

8P

CN402

8P

CN403

8P

CN404

8P

CN405

13P

CN601

13P

CN602

10P

CN603

10P

CN604

8P

CN407

8P

CN408

6P

CN105

8P

CN406

8P

CN401

[INPUT]

[A]

[B]

10P

CN104

10P

CN103

13P

CN102

13P

CN101

10P

CN104

10P

CN103

13P

CN102

13P

CN101

3P

CN002

5P

CN001

14P

CN100

4P

CN101

2P

CN300

4P

CN301

2P

CN302

4P

CN303

16P

CN200

6P

CN201

DC

2P

CN400

4P

CN401

3P

CN402

FG

AC

FAN

3P

CN502

2P

CN500

DR

[WORD CLOCK]

[ON]

[OFF]

[75 ]

[IN]

[OUT]

5P

CN300

IPC4

IPC2

CONNECTOR CIRCUIT DIAGRAM

4

AO8

5

Circuit Board CN No. Pin No.

DC CN100

2 3 4 5 6 7 8

9 10 11 12 13 14

DC CN101 1

2

3

DC CN200

DC CN201

1

2

3

4

5

6

1

2

3

DC CN300 1

2

DC CN301 1

2

3

4

DC CN302 2 DC CN303 1

2

IFC3 CN103 1

2

3

4

5

6

7

8

9 10 11 12 13 14

1 MB1 4

3

MB1 4

3 MB1 5 IFC3 1

2 MB1 2

1 MB1 2

1 MB1

3 IFC3 3

4 MB1 4 IFC3 5

6

4 MB1

MB1

4 MB1 4

MB1 2 MB1 2 MB1 2

DR 1

2 MB1 6

6 MB1 2

1 MB1 1

5

LED1 1

2

3

4

5

6

7

8

9

10 11 12 13 14

CN122

CN124

CN127 CN104

CN122

CN124

CN127 CN104

CN123

CN121

CN125

CN121 CN123 CN125 CN500

CN122

CN126

CN127

MB1 MB1

CN122

CN124

CN100

CN124

Circuit Board CN No. Pin No.

MB1 1 MB1 1 MB1 1

CN121

CN123

CN125

MB1

AC CN701 1

4

PSB CN600 1

3

KEC-92523-3

1

[1]

[2]

[3]

[4]

[5]

[6]

[7]

Register

Decoder

FLASH RAM

CPU

WC SEL & SYNC DETECTOR

Decoder

Register

DIR2

44.1K 48K

DIR2 2

[8]

Data Bus

Address Bus

SLOT No.

FPGA

MASTER CLOCK

/CS1 /CON1

[75 ]

LOCK

WC

WCI

ID I/O

WCO

INPUT CLOCK INPUT CLOCK

DIA

WCI

ID I/O

WCO

DIB

[INPUT]

[A]

[B]

[IN]

[OUT]

[WORD CLOCK]

[OUTPUT UNIT ID]

[INPUT SELECTOR]

[A]

[B]

SELECTOR

ATSC

2

O11 O12

O21 O22

O31 O32

O41 O42

O51 O52

O61 O62

O71 O72

O81 O82

/CS2 /CON2

/CS3 /CON3

/CS4 /CON4

/CS5 /CON5

/CS6 /CON6

/CS7 /CON7

/CS8 /CON8

[ON]

[OFF]

WCO

WCI

IC302 IC303

IC202

IC501 IC502

IC404

IC407

IC101

IC201 IC203

IC301

DIR2

IC402

DIR2

IC401

DIR2

IC403

IPC2

Driver

Receiver

IPC2

IPC4

IFC3

Driver

Receiver

KEC-92521

LED2

UNC

MB1

~

ATSC

2

IC502 IC504

BLOCK DIAGRAM

AO8

6

DISASSEMBLY PROCEDURE

[470]

[500] x 32

[400]: Flat Head Screw 4.0x8 MFZN2BL (VA221200) [450]: Oval Head Screw 4.0x8 MFZN2BL (VS153600)

[470]

[400]

12345678

Mount bracket

Front panel assembly UNC card assemblyBlank panel

Fig. 1

[452]: Oval Head Screw B4.0x8 MFZN2BL (V6221000)

[470]: Bonding Screw 3.0x6 MFZN2BL (VS863000) [500]: Bonding Screw 3.0x6 MFZN2BL (VS863000)

[450]

[452]

Mount bracket

[450]

[452]

Mount bracket

1. UNC Card Assembly

1-1 Remove the four (4) screws marked [470]. The UNC card

assembly can them be removed. (Fig. 1)

2. Front Panel Assembly

2-1 Remove the UNC card assembly. (See Procedure 1.) 2-2 Remove the thirty-two (32) screws marked [500]. The

blank panel can then be removed. (Fig. 1)

2-3 Remove the six (6) screws marked [450]. Each mount

bracket can then be removed. (Fig. 1)

2-4 Remove the six (6) screws marked [400]. The front panel

assembly can then be removed. (Fig. 1)

AO8

3. LED2 Circuit Board

3-1 Remove the front panel assembly. (See Procedure 2.) 3-2 Remove the two (2) screws marked [80]. The LED2

circuit board can then be removed. (Fig. 2)

4. PSB Circuit Board

4-1 Remove the UNC card assembly. (See Procedure 1.) 4-2 Remove the front panel assembly. (See Procedure 2.) 4-3 Remove the seventeen (17) screws marked [430]. The top

panel can then be removed. (Fig. 2)

4-4 Remove the two (2) screws marked [100]. The PSB circuit

board can then be removed. (Fig. 2)

7

[180]: Bind Head Tapping Screw-B A3.0x6 MFZN2BL (VP157900) [280]: Bind Head Tapping Screw-B A4.0x8 MFZN2BL (VC688800)

Fig. 3

Upper chassis

IPC2 IPC4

[380] [320] [A]

[320][310]

[240]

[280]

[180]

[A]

Power transformer

Mother assembly

DR

AO8

8

6. Mother Assembly

6-1 Remove the UNC card assembly. (See Procedure 1.) 6-2 Remove the front panel assembly. (See Procedure 2.) 6-3 Remove the top panel. (See Procedure 4-3.) 6-4 Remove the seven (7) screws marked [280]. The mother

assembly can then be removed. (Fig. 3)

5. Circuit Boards and Units

Remove the top panel, each circuit board and unit can then be removed. (Fig. 3)

[80]: Bind Head Tapping Screw-B 3.0x6 MFZN2BL (EP600230) [100]: Bind Head Screw 3.0x8 MFZN2BL (VB659000) [170]: Bind Head Tapping Screw-B A4.0x8 MFZN2BL (VC688800) [430]: Bind Head Tapping Screw-B A4.0x8 MFZN2BL (VC688800)

Fig. 2

[430] x 17

Top panel

[80]

[170]

[100]

LED2

PSB

Circuit Board and Unit

IPC2 IPC4

DR Power Transformer

A 310 320 380 240

Screw Bonding Screw 3.0x6 MFZN2BL (VS863000) Bind Head Screw A4.0x6 MFZN2BL (EG340290) Bonding Tapping Screw-B (VN413300) Bonding Tapping Screw-B (VC688800)

2 2 2 2 4

Ref. No. Screw QTY

[30]: Bind Head Tapping Screw-B 3.0x6 MFZN2BL (EP600230) [50]: Bind Head Tapping Screw-B 3.0x6 MFZN2BL (EP600230) [70]: Bind Head Tapping Screw-B 3.0x6 MFZN2BL (EP600230)

Fig. 4

[200]: Bind Head Tapping Screw-B A4.0x8 MFZN2BL (VC688800) [260]: Bind Head Tapping Screw-B A4.0x8 MFZN2BL (VC688800) [450]: Oval Head Screw 4.0x8 MFZN2BL (VS153600)

[452]: Oval Head Screw B4.0x10 MFZN2BL (V6221000)

Fig. 5

MB1

[30]

[50]

[70]

[450]

[452]

[260]

Mount bracket

Side panel assembly

Side panel L

IFC3

• Mother Assembly <Left Side View>

[450]

[452]

[200]

Mount bracket

7. MB1 Circuit Board

7-1 Remove the mother assembly. (See Procedure 6.) 7-2 Remove the nine (9) screws marked [30] and the five (5)

screws marked [50]. The MB1 circuit board can then be removed. (Fig. 4)

8. IFC3 Circuit Board

8-1 Remove the mother assembly. (See Procedure 6.) 8-2 Remove the six (6) screws marked [70]. The IFC3 circuit

board can then be removed. (Fig. 4)

9. Side Panel Assembly

9-1 Remove the UNC card assembly. (See Procedure 1.) 9-2 Remove the front panel assembly. (See Procedure 2.) 9-3 Remove the top panel. (See Procedure 4-3.) 9-4 Remove the mother assembly. (See Procedure 6.) 9-5

Remove the eight (8) screws marked [450] and the two (2) screws marked [452]. Each mount bracket can then be removed. (Fig. 5)

9-6 Remove the seven (7) screws marked [200]. The side

panel (L) can then be removed.

9-7 Remove the three (3) screws marked [170] and the five (5)

screws marked [180]. The upper chassis can then be removed. (Fig. 2, Fig. 3)

9-8 Remove the seven (7) screws marked [260]. The side

panel assembly can then be removed. (Fig. 5)

AO8

9

AO8

10

10. AC Assembly

10-1 Remove the side panel assembly. (See Procedure 9.) 10-2 Remove the three (3) screws marked [90]. The AC

assembly can then be removed. (Fig. 6)

11. DC Assembly

11-1 Remove the side panel assembly. (See Procedure 9.) 11-2 Remove the four (4) screws marked [60]. The DC

assembly can then be removed. (Fig. 6)

12. DC Circuit Board

12-1 Remove the side panel assembly. (See Procedure 9.) 12-2 Remove the DC assembly. (See Procedure 11.) 12-3 Remove the four (4) screws marked [D60]. The TR holder

can then be removed. (Fig. 7)

12-4 Remove the three (3) screws marked [D80]. The BR

holder can then be removed. (Fig. 7)

12-5 Remove the five (5) screws marked [D90]. The DC cricuit

board can then be removed. (Fig. 7)

[60]: Bind Head Screw A4.0x6 MFZN2BL (EG340290) [90]: Bind Head Tapping Screw-B A4.0x8 MFZN2BL (VC688800)

Fig. 6

[D60]: Pan Head Screw SP4.0x8 MFZN2Y (EL200020) [D80]: Pan Head Screw SP4.0x8 MFZN2Y (EL200020) [D90]: Bind Head Tapping Screw-B 3.0x6 MFZN2BL (EP600230)

Fig. 7

[60] [90]

[D60]

DC assembly AC assembly

TR holder

• DC Assembly• Side Panel Assembly

[D80]

[D90]

BR holder

DC

AO8

11

LSI PIN DESCRIPTION

PIN NO.

I/O FUNCTIONNAME

PIN NO.

I/O FUNCTIONNAME

1

2

3

4 5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21

22 23

24

25

26

27

28

29 30 31 32 33 34 35 36 37 38 39 40

syncati

mccti

mcbti

VCC GND mcati

GND

siat0

siat1

siat2

siat3

ati

GND

ato soat3 soat2 soat1 soat0

VCC

GND

mcato

GND

mcbto

mccto

syncato

clksel

ato-sel0

ato-sel1

bitsel2 bitsel1 bitsel0

VCC

GND

ext-sync2

ui0

ui1

ui2

ui3

si-sel0 si-sel1

I

I I I I I

O O O O O

I

Synch. word input terminal for ati, siat3-0 input 64 fs clock input terminal for ati, siat3-0 input 128 fs clock input terminal for ati, siat3-0 input Power supply (+5 V) Ground 256 fs clock input terminal for ati, siat3-0 input Ground

Serial data input terminal

Optical input terminal Ground Optical output terminal

Serial data output terminal

Power supply (+5 V) Ground 256 fs clock input terminal for ato, soat3-0 output Ground 128 fs clock input terminal for ato, soat3-0 output 64 fs clock input terminal for ato, soat3-0 output Synch. word input terminal for ato, soat3-0 output Clock select terminal for ato, soat 3-0 output 0: mcato,mcbto,mccto,syncato 1: mcai,mcbi,mcci,synci Format select terminal for ato, soat3-0 output Format select terminal for ato, soat3-0 output

Bit shift select terminal for the ato output

Power supply (+5 V) Ground Synch. detect output terminal 2

U-bit input terminal for optical output

input format select terminal for si3-0 input format select terminal for si3-0i

41

42

43

44 45 46

47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

62 63

64

65

66

67

68

69 70 71 72 73 74 75 76 77 78 79 80

synci

mcci

mcbi

VCC

GND

mcai

GND

si0 si1 si2 si3

GND

so3 so2 so1 so0

VCC

GND

mcao

GND

mcbo

mcco

synco

so-sel1

so-sel0

uo3

uo2

uo1

uo0

ext-sync1

VCC

GND

clk

GND

/res GND wc-at mute

ati-sel1 ati-sel0

I

I I I I

O O O O

I

I I

I

O

O O

I

O

I I I

Synch. word input terminal for si3-0 input

64 fs clock input terminal for si3-0 input

128 fs clock input terminal for si3-0 input

Power supply (+5 V) Ground 256 fs clock input terminal for si3-0 input

Ground

Serial data input terminal

Ground

Serial data output terminal

Power supply (+5 V) Ground 256 fs clock input terminal for so3-0 output Ground 128 fs clock input terminal for so3-0 output

64 fs clock input terminal for so3-0 output Synch. word input terminal for so3-0 output

Format select terminal for soat3-0 output

U-bit output terminal for optical output

Synch. detect output terminal 1 Power supply (+5 V) Ground Clock input terminal for word clock extract Ground System reset input terminal Ground Word clock output terminal Data mute input terminal Input format select terminal for ati, siat3-0. input format select terminal for ati, siat3-0.

SGH609080F-47F (XU235A00) ATSC

IFC3: IC501–504

1 1 0 0

so sel1

1 0 1 0

so sel0

not enable to set so0 so2, 0 so3-0

(8ch/line) (4ch/line) (2ch/line)

input format

1 1 0 0

ati sel1

1 0 1 0

ati sel0

ati ati0 ati2, 0 ati3-0

(8ch/line) (4ch/line) (2ch/line)

input format

1 1 0 0

ato sel1

0: mcato,mcbto,mccto,syncato 1: mcai,mcbi,mcci,synci

1 0 1 0

ato sel0

ato soat0 soat2, 0 soat3-0

(8ch/line) (4ch/line) (2ch/line)

output format

1 1 0 0

si sel1

1 0 1 0

si sel0

not enable to set si0 si2, 0 si3-0

(8ch/line) (4ch/line) (2ch/line)

input format

AO8

12

PIN NO.

I/O FUNCTIONNAME

PIN NO.

I/O FUNCTIONNAME

1 2 3 4 5 6 7 8

9 10 11

12

13 14

15 16 17 18 19

20

21

22

DAUX

HDLT

DOUT

VFL

OPT

SYNC

MCC

WC MCB MCA

SKSY

XI

XO

P256

LOCK

Vss

TC DIM1 DIM0

DOM1

DOM0

KM1

I O O O O O O O O O

I

O O

O

I

Auxiliary input for audio data Asynchronous buffer operation flag Audio data output Parity flag output Fs x 1 Synchronous output signal for DAC Fs x 1 Synchronous output signal for DSP Fs x 64 Bit clock output FS x 1 Word clock output Fs x 128 Bit clock output Fs x 256 Bit clock output Clock synchronization control input

Crystal oscillator connection or external clock input Crystal oscillator connection VCO oscillating clock connection

PLL lock flag Logic section power (GND) PLL time constant switching output Data input mode selection Data input mode selection

Data output mode selection

Clock mode switching input 1

23 24 25 26 27 28 29 30 31 32 33

34

35 36

37 38 39 40 41

42

43

44

RSTN

Vdda

CTLN

PCO

(NC)

CTLP

Vssa

TSTN

KM2 KM0

FS1

FS0

CSM

EXTW

DDIN

LR

Vdd

ERR

EMP

CD0

CCK

CLD

I

O

I

I I I

O

I I

I

O

O O

O

I

System reset input VCO section power (+5V) VCO control input N PLL phase comparison output

VCO control input P VCO section power (GND) Test terminal. Open for normal use Clock mode switching input 2 Clock mode switching input 0 Channel status sampling frequency display output 1 Channel status sampling frequency display output 0 Channel status output method selection External synchronous auxiliary input word clock EIAJ (AES/EBU) data input PLL word clock output Logic section power (+5 V) Data error flag output Channel status emphasis control code output 3-wire type microcomputer interface data output 3-wire type microcomputer interface clock input 3-wire type microcomputer interface load input

YM3436DK (XG948E0) DIR2 (Digital Format Interface Receiver)

IFC3: IC301 to 303, 401 to 403

AO8

13

PIN NO.

I/O FUNCTIONNAME

PIN NO.

I/O FUNCTIONNAME

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

PE14 PE15

VSS

A0 A1 A2 A3 A4 A5 A6 A7 A8

A9 A10 A11 A12 A13 A14 A15 A16

VCC

A17

VSS

/RAS

/CASL

/CASH

VSS

RDWR / PB5

A18 A19 A20

PB9 /A21

VSS

/RD

/WDTOVF

/WRH

VCC

/WRL

VSS /CS1 /CS0

PA9 / TCLKD /IRQ2 / TCLKC

/CS3 /CS2

/IRQ1

TXD

RXD

/IRQ0 PA1 / TXD0 PA0 / RXD0

D15 D14 D13

VSS

D12

O O

I O O O O O O O O O O O O O O O O O

I O

I O O O O O O O O O

I O O O

I O

I O O O

I O O

I O

I

I O

I

I/O I/O I/O

I

I/O

Port E Port E Ground

Address bus

Power supply Address bus Ground Row address strobe Column address strobe (low) Column address strobe (high) Ground DRAM read/write / Port B

Address bus

Port B / Address bus Ground Read Watch dog timer overflow High write Power supply Low write Ground Chip select Chip select Port A / Timer clock Interrupt request / Timer clock Chip select Chip select Interrupt request Data transmission Data reception Interrupt request Port A / Data transmission Port A / Data reception

Data bus

Ground Data bus

57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98

99 100 101 102 103 104 105 106 107 108 109 110 111 112

D11 D10

D9 D8

VSS

D7 D6 D5

VCC

D4 D3 D2 D1 D0

VSS

XTAL

MD3

EXTAL

MD2

NMI VCC MD1 MD0

PLLVCC PLLCAP PLLVSS

PA15 / CK

/RES

PE0 PE1 PE2 PE3 PE4 VSS

AN0 / PF0 AN1 / PF1 AN2 / PF2 AN3 / PF3 AN4 / PF4 AN5 / PF5

AVSS AN6 / PF6 AN7 / PF7

AVCC

VSS PE5

VCC

PE6 PE7 PE8 PE9

PE10

VSS PE11 PE12 PE13

I/O I/O I/O I/O

I I/O I/O I/O

I I/O I/O I/O I/O I/O

I

O

I

O

I

O O O O O

I

O O O

Data bus

Ground

Data bus

Power supply

Data bus

Ground Crystal oscillator Mode control Crystal oscillator Mode control Non-maskable interrupt request Power supply Mode control Mode control PLL Power supply PLL capacitor PLL Ground Port A / Clock Reset

Port E

Ground

Analog input / Port F

Analog ground Analog input / Port F Analog input / Port F Power supply Ground Port E Power supply

Port E

Ground

Port E

HD6477042AF28 (XY715A00) CPU UNC: IC101

AO8

HD74LVU04AFPEL (XY102A00) Hex Inverter

IFC3: IC105

HD74LV04AFPEL (IS000400) Hex Inverter

IFC3: IC311, 408 UNC: IC105

HD74LV08AFPEL (IS000800) Quad 2 Input AND

IFC3: IC104, 310, 409 UNC: IC104, 213

SN74LV138ANSR (IS013810) 3 to 8 Demultiplexer

UNC: IC211, 212

TC74VHC245F (XT487A00)

Octal 3-State Bus Transceiver

IPC2: IC104, 105 IFC3: IC101-103, 106, 107, 404-407, 601-608 UNC: IC102, 204, 210

DS26C32ATMX (XU815A00) Quad Differential Line Receiver

IPC2: IC100-103, 106

AM26LS31CNSR (XU996A00) Quad Line Driver

IPC2: IC107

SN75124N (XE737A00) Triple Line Receiver

IPC4: IC300

SN75121 (XE638A00) Dual Line Driver

IPC4: IC301

1

2

3

4

5

6

7

1A

1Y

2A

2Y

3A

3Y

Vss

14

13

12

11

10

9

8

VDD

6A

6Y

5A

5Y

4A

4Y

1

2

3

4

5

6

7

1A

1Y

2A

2Y

3A

3Y

Vss

14

13

12

11

10

9

8

VDD

6A

6Y

5A

5Y

4A

4Y

1

2

3

1A

1Y

42A

52B

62Y

7

VSS

1B

14

13

12

VDD

4A

11 4Y

10 3B

9 3A

8 3Y

4B

1

2

3

4

5

6

7

A

Select

Enable

Output

B

C

G2A

G2B

G1

Y7

Y7 Y5

Y4

Y3

Y2

Y1

Y0

Y6

16

15

14

13

12

11

10

Vcc

YO

Y1

Y2

Y3

Y4

Y5

8

GND

9

Y6

1

2

3

4

5

6

7

20

19

18

17

16

15

14

Vcc

G

B1

B2

B3

B4

B5

B6

B7

B8

8

9

10

12

11

GND

A8

A7

A6

A5

A4

A3

A2

A1

D1R

13

1

2

3

4

5

6

7

INPUT A

OUTPUT A

OUTPUT C

INPUT C

GND

ENABLE

16

15

14

13

12

11

Vcc

INPUT B

OUTPUT B

ENABLE

OUTPUT D

INPUT D

8

9

10

INPUT D

+

-

+

-

+

1

2

3

4

5

6

7

1A

1Y

1Z

2Z

2Y

2A

GND

ENABLE G

16

15

14

13

12

11

Vcc

4A

4Y

4Z

ENABLE G

3Z

3Y

8

9

10

3A

H= high level L= low level

X= irrelevant Z= high impedance (off)

OUTPUTSENABLESINPUT

A

GGY Z H H X X L

X X L L H

H L H L Z

L

H

L H Z

H L H L X

1A

1B

2R

2S

2A

2B

2Y

GND

1 16

2 15

3 14

4 13

5 12

6 11

7 10

8 9

Vcc

1S

1R

1Y

3A

3S

3R

3Y

Vcc

2F

2E

2A

2Y

GND

1Y

2C

2B

2D

1A

1B

1C

1D

1E

1F

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

IC BLOCK DIAGRAM

14

3NA-V488240

Component side

INPUT A

INPUT B

IPC2 1/2 Circuit Board

to IFC3-CN602

to IFC3-CN601

to IFC3-CN604

to IFC3-CN603

Component side

to IFC3-CN606

to IFC3-CN605

to IFC3-CN608

to IFC3-CN607

IPC2 2/2 Circuit Board

CIRCUIT BOARDS

AC Circuit Board (XW295B0)····················································································· 16 DC Circuit Board (XW295B0)····················································································· 17 DR Circuit Board (XW295B0)····················································································· 16 IFC3 Circuit Board (XW287A0)·················································································· 19

IPC2 Circuit Board (XW289A0)·················································································· 15

IPC4 Circuit Board (XW286B0)·················································································· 16 LED2 Circuit Board (XW286B0)················································································· 16

MB1 Circuit Board (XW282A0) ·················································································· 17

PSB Circuit Board (XW295B0) ·················································································· 16

UNC Circuit Board (XW281B0)·················································································· 18

Note: See parts list for details of circuit board component parts.

AO8

15