FUNAI BLA-1600 SERVICE MANUAL

BLA-1600

MANUALSERVICE

CAUTION

BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL.

CONTENTS

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Important Safety Instructions ...............................................

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Disassembly .........................................................................

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Bottom Cabinet ........................................................................................



Rear Plate ...............................................................................................

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Amplify Board ..........................................................................................



Display Board ..........................................................................................

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Key Board ...............................................................................................

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Main Board .............................................................................................

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USB Host Converter .................................................................................



USB Host Converter Board .....................................................................

BLA-1600

1-4 1-4 1-4

1-4 1-5

1-6

1-7 1-8

1-8



PARTS LIST ........................................................................



Exploded View of General Assembly and Part List ..............................

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Electrical Part List .................................................................................

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Packing Materials and Accessories Parts List ......................................

2-1

2-3

2-5

2-7

1-1

BLA-1600

Important Safety Instrcutions

1. Read these instructions.

2. Keep these Instructions.

3. Heed all Warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with damp cloth.

7. Do not block any of the ventilation openings. Install in accordance with the manufacturers instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

15. The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on the apparatus.

16. The socket-outlet shall be installed near the equipment and shall be easily accessible.

17. The equipment is to be supplied from an identified USB port complying with the requirement of Limited Power Source.

You can help protect the environment! Please remember to respect the local regulations: hand in the non-working electrical equipments to an appropriate waste disposal center.

Warning:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE ENCLOSURE. DO NOT OPEN THE CABINET. REFER SERVICING TO QUALIFIED PERSONNEL ONLY.

Please read Rating Label at the bottom of this main unit

Note

for power input and other safety information.

To avoid risk of electric shock and fire, and to prevent damage, locate the apparatus as follows:

1. Front: No obstructions and with open spacing.

2. Sides / Top / Back: No obstructions should be placed in the areas

shown as below.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the points where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

PORT

ABLE

CART

WARNING

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

15cm

5cm 1cm

1cm 5cm

Front View of Main Unit and Satellites

Front View of Subwoofer

5cm

15cm

5cm

Side View of Main Unit and Satellites

5cm5cm

5cm

1-2

Side View of Subwoofer

BLA-1600

Disassembly Instructions

Disconnect the main plugs before opening the set.

1. Bottom Cabinet

z

Flip the unit so that the bottom cabinet is facing up.

z

Undo the 4 screws “A” on the bottom cabinet.

z

Lift the bottom cabinet.

z

Lift the silver ring cabinet. (Underneath the bottom cabinet)

Fi g. 1

2. Rear Plate

Undo the two screws “B ” located at the rear plate. (Fig 2)

z

Pull the rear plate backwards. (Should hear a couple of clicks)

z

1-4

Fig. 2

3. Amplify board

Undo the 5 screws “C” found on top of the Amplify board (Fig .3)

z

Unplug the wire next to the power plug found at the back of the unit. (Fig. 4)

z

Lift the Amplify board and unplug the wi re next to the USB Jack (Fig. 5)

z

Place the board to the left. (Fig. 6)



Unplug the three cables attached to the amplify board.

z

BLA-1600

Fig. 3

Fig. 5

Fig. 4

Fig. 6

1-5

BLA-1600

4. Display board

Undo the 4 screws “D” of the support casing.

z

One screw is found behind the front display board. (Fig 7)



Lift and take the remaining unit out of the outside plastic case.

z

Flip the remaining unit.

z

Undo the 4 screws “E” (Fig 8).

z

Pull the cable plugged to the display board.

z

Fig. 7

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5. Key board

Undo the 3 screws “F” (Fig 9).

z

Unplug cable attached to the key board.

z

Fig. 8

1-6

Fig. 9

6. Main board

z

Undo the 3 screws “G” (Fig 10)

z

Lift the board up (For easier access unplug the white and blue cable underneath



the board).



Fig. 10

7. USB Host Converter

z

Detach the USB host Converter from the main unit.

z

Take apart the case by pulling away from both sides of the hinge (Fig 11).



Fig. 11

8. USB H o s t c o n v e r t e r B o a r d.

z

Undo screw “H” located behind the USB Jack (Fig 12).

 



Fig. 12

Lift the circuit board out of the case.

1-7

BLA-1600

P32/SDA0

P33/SCL0

P34/SI31

P35/SO31

uPD78F0034A:

Pin Assignment:

P47/AD7

P46/AD6

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

P50/A8

P51/A9 P52/A10 P53/A11 P54/A12 P55/A13 P56/A14 P57/A15

SS0

DD0

P30 P31

Note 1

Note 2

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

P45/AD5

P44/AD4

P43/AD3

P42/AD2

P41/AD1

P40/AD0

P67/ASTB

P66/WAIT

P65/WR

P64/RD

P75/BUZ

P74/PCL

P73/TI51/TO51

P72/TI50/TO50

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

P71/TI01 P70/TI00/TO0 P03/INTP3/ADTRG P02/INTP2 P01/INTP1 P00/INTP0 V

SS1

X1 X2

V XT1 XT2 RESET

AV AV

REF

P10/ANI0

1-8

Note 2

P20/SI30

P36/SCK31

P21/SO30

P22/SCK30

P24/TxD0

P23/RxD0

DD1

P25/ASCK0

P17/ANI7

P16/ANI6

P15/ANI5

P14/ANI4

P13/ANI3

P12/ANI2

P11/ANI1

Pin Description:

3.1 Port Pins (1/2)

Pin Name I/O Function After Reset Alternate

Function P00 I/O Port 0 Input INTP0 P01 P02 P03 P10 to P17 Input Port 1 Input ANI0 to ANI7

P20 I/O Port 2 Input SI30 P21 P22 P23 P24 TxD0 P25 ASCK0 P30 I/O Port 3 N-ch open-drain I/O port. Input – P31 P32 P33 P34 An on-chip pull-up resistor can be SI31 P35 P36 SCK31 P40 to P47 I/O Port 4 Input AD0 to AD7

P50 to P57 I/O Port 5 Input A8 to A15

P64 I/O Port 6 Input RD P65 P66 P67

4-bit I/O port. Input/output can be specified in 1-bit units. An on-chip pull-up resistor can be specified by means of software.

8-bit input-only port.

6-bit I/O port. Input/output can be specified in 1-bit units. An on-chip pull-up resistor can be specified by means of software.

7-bit I/O port. LEDs can be driven directly. Input/output can be specified in 1-bit units.

specified by means of software.

8-bit I/O port. Input/output can be specified in 1-bit units. An on-chip pull-up resistor can be specified by means of software. Interrupt request flag KRIF is set to 1 by falling edge detection.

8-bit I/O port. LEDs can be driven directly. Input/output can be specified in 1-bit units. An on-chip pull-up resistor can be specified by means of software.

4-bit I/O port. Input/output can be specified in 1-bit units. An on-chip pull-up resistor can be specified by means of software.

INTP1 INTP2 INTP3/ADTRG

SO30 SCK30 RxD0

Note 1

SDA0

Note 1

SCL0

Note 2

SO31

Note 2

WR WAIT ASTB

BLA-1600

Notes 1. SDA0 and SCL0 are incorporated only in the µPD78F0034AY Subseries.

2. SI31, SO31, and SCK31 are incorporated only in the

PD78F0034A Subseries.

1-9

BLA-1600

3.1 Port Pins (2/2)

Pin Name I/O Function After Reset Alternate

Function P70 I/O Port 7 Input TI00/TO0 P71 P72 P73

6-bit I/O port. Input/output can be specified in 1-bit units. An on-chip pull-up resistor can be specified by means of software.

TI01 TI50/TO50

TI51/TO51 P74 PCL P75 BUZ

3.2 Non-Port Pins (1/2)

Pin Name I/O Function After Reset Alternate

Function INTP0 Input External interrupt request input by which the valid edge (rising edge, Input P00 INTP1 INTP2 P02 INTP3 P03/ADTRG SI30 Input Serial interface serial data input. Input P20

Note 1

SI31

Note 2

SDA0 SO30 Output Serial interface serial data output. Input P21

Note 1

SO31 SCK30 I/O Serial interface serial clock input/output. Input P22

Note 1

SCK31

Note 2

SCL0 RxD0 Input Serial data input for asynchronous serial interface. Input P23 TxD0 Output Serial data output for asynchronous serial interface. Input P24 ASCK0 Input Serial clock input for asynchronous serial interface. Input P25 TI00 Input External count clock input to 16-bit timer/event counter 0. Input P70/TO0

TI01 Capture trigger signal input to capture register 00 (CR00) of 16-bit timer/ P71

TI50 External count clock input to 8-bit timer/event counter 50. P72/TO50 TI51 External count clock input to 8-bit timer/event counter 51. P73/TO51 TO0 Output 16-bit timer/event counter 0 output. Input P70/TI00 TO50 8-bit timer/event counter 50 output (shared with 8-bit PWM output). Input P72/TI50 TO51 8-bit timer/event counter 51 output (shared with 8-bit PWM output). P73/TI51 PCL Output Clock output (for trimming of main system clock and subsystem clock). Input P74 BUZ Output Buzzer output. Input P75

falling edge, or both rising and falling edges) can be specified.

P01

P34

I/O Serial interface serial data input/output Input P32

P35

P36 P33

Capture trigger signal input to capture register 01 (CR01) of 16-bit timer/ event counter 0.

event counter 0.

AD0 to AD7 I/O Lower address/data bus for extending memory externally. Input P40 to P SERVICEAL MANU47

Notes 1. SI31, SO31, and SCK31 are incorporated only in the µPD78F0034A Subseries.

2. SDA0 and SCL0 are incorporated only in the

1-10

PD78F0034AY Subseries.

3.2 Non-Port Pins (2/2)

Pin Name I/O Function After Reset Alternate

Function A8 to A15 Output Higher address bus for extending memory externally. Input P50 to P57 RD Output Strobe signal output for read operation of external memory. Input P64 WR Strobe signal output for write operation of external memory. P65 WAIT Input Inserting wait for accessing external memory. Input P66 ASTB Output Strobe output which externally latches address information output to Input P67

ports 4 and 5 to access external memory. ANI0 to ANI7 ADTRG Input A/D converter trigger signal input. Input P03/INTP3 AVREF Input A/D converter reference voltage input. – –

DD – A/D converter analog power supply. – –

SS – A/D converter ground potential. – –

RESET Input System reset input. – – X1 Input Connecting crystal resonator for main system clock oscillation. – – X2 – –– XT1 Input Connecting crystal resonator for subsystem clock oscillation. – – XT2 – –– VDD0 – Positive power supply voltage for ports. – – VSS0 – Ground potential of ports. – – VDD1 – Positive power supply (except ports). – – VSS1 – Ground potential (except ports). – –

PP – Applying high-voltage for program write/verify. Connect directly to VSS0 ––

Input A/D converter analog input. Input P10 to P17

Set the voltage equal to VDD0 or VDD1.

Set the voltage equal to VSS0 or VSS1.

SS1 in normal operation mode.

or V

BLA-1600

1-11

BLA-1600

Pin Name I/O Circuit Type I/O Recommended Connection of Unused Pins P00/INTP0 8-C I/O Input: Independently connect to VSS0 via a resistor. P01/INTP1

Output: Leave open.

P02/INTP2 P03/INTP3/ADTRG P10/ANI0 to P17/ANI7 25 Input Connect to VDD0 or VSS0. P20/SI30 8-C I/O Input: Independently connect to VDD0 or VSS0 via a P21/SO30 5-H P22/SCK30 8-C

resistor. Output: Leave open.

P23/RxD0 P24/TxD0 5-H P25/ASCK0 8-C P30, P31 13-P I/O Input: Independently connect to VDD0 via a resistor. P32/SDA0 P33/SCL0 P34/SI31 P35/SO31 P36/SCK31

Note 1

Note 2

13-R

8-C Input: Independently connect to VDD0 or VSS0 via a 5-H 8-C

P40/AD0 to P47/AD7 5-H I/O Input: Independently connect to V

Output: Leave open.

resistor. Output: Leave open.

DD0 via a resistor.

Output: Leave open. P50/A8 to P57/A15 5-H I/O Input: Independently connect to VDD0 or VSS0 via a P64/RD I/O P65/WR

resistor.

Output: Leave open.

P66/WAIT P67/ASTB P70/TI00/TO0 8-C P71/TI01 P72/TI50/TO50 P73/TI51/TO51 P74/PCL 5-H P75/BUZ

Notes 1. SDA0 and SCL0 are incorporated only in the µPD78F0034AY Subseries.

2. SI31, SO31, and SCK31 are incorporated only in the

Pin Name I/O Circuit Type I/O Recommended Connection of Unused Pins RESET 2 Input – XT1 16 Connect to VDD0. XT2 – Leave open. AVDD – Connect to VDD0 or VDD1. AVREF Connect to VSS0 or VSS1. AVSS VPP Connect directly to VSS0 or VSS1.

1-12

PD78F0034A Subseries.

Block Diagram:

BLA-1600

TI00/TO0/P70

TI01/P71

TI50/TO50/P72

TI51/TO51/P73

SI30/P20

SO30/P21

SCK30/P22

SI31/P34

SO31/P35

SCK31/P36

RxD0/P23

TxD0/P24

ASCK0/P25

SDA0/P32

SCL0/P33

ANI0/P10 to

ANI7/P17

REF

INTP0/P00 to

INTP3/P03

BUZ/P75

16-bit timer/ event counter

8-bit timer/ event counter 50

8-bit timer/ event counter 51

Watchdog timer

Watch timer

Serial interface 30

Serial interface 31

Note 1

UART0

Note 2

I2C bus

A/D converter

Interrupt control

Buzzer output

78K/0 CPU core

RAM

(1,024

bytes)

Flash memory (32 KB)

Port 0 P00 to P03

Port 1 P10 to P17

Port 2 P20 to P25

Port 3 P30 to P36

Port 4 P40 to P47

Port 5 P50 to P57

Port 6 P64 to P67

Port 7 P70 to P75

External access

System control

AD0/P40 to AD7/P47 A8/P50 to A15/P57

RD/P64 WR/P65 WAIT/P66 ASTB/P67

RESET X1 X2 XT1 XT2

PCL/P74

Clock output control

DD0

Notes 1. Incorporated only in the µPD78F0034A

2. Incorporated only in the

PD78F0034AY

DD1VSS0VSS1VPP

1-13

BLA-1600

AP1509:

Pin Assignment:

(Top View)

Output

2 3 4

SOP-8L

Pin Description:

Name Description

GND

7 6

GND GND

VIN Operating voltage input

Output Switching output

GND Ground

FB Output voltage feedback control

SD ON/OFF Shutdown

Block Diagram

Current Source

bias

1.235V

Reference

2.5V

Regulator

Start

Comp

200mV

+ _

220mV

1-14

Amp

Frequecy

compen-

sation

Comp

150kHz

OSC.

Pre-driver

Thermal

Shutdown

Switch

Output

Gnd

BLA-1600

AP130:

Pin Assignment

( Top View )

321

(SOT89)

Pin Description

1 OUT

2 GND

3 IN

IN: Power Input

OUT: Output Voltage

GND: Ground

Block Diagram

Current

Limit

Thermal

Shutdown

Bandgap

OUT

Error Amp

1.08V

GND

1-15

BLA-1600

PCM2704:

Pin Assignment:

XTO

PSEL

DOUT

DGND

D– D+

BUS

ZGND

AGNDL

CCL

OUT

1 2 3 4 5 6 7 8 9 10 11 12 13

28 27 26 25 24 23 22 21 20 19 18 17 16 15

XTI SSPND TEST0 TEST1 HID2/MD HID1/MC HID0/MS HOST V

CCP

PGND V

COM

AGNDR V

CCR

OUT

1-16

Pin Description:

I/O

DESCRIPTION

TERMINAL

NAME NO.

AGNDL 12 — Analog ground for headphone amplifier of L-channel AGNDR 17 — Analog ground for headphone amplifier of R-channel CK 2 O Clock output for external ROM (PCM2704). Must be left open (PCM2705). D+ 9 I/O USB differential input/output plus D– 8 I/O USB differential input/output minus DGND 6 — Digital ground DOUT 5 O S/PDIF output DT 3 I/O Data input/output for external ROM(PCM 2704). Must be left open with pullup resistor (PCM2705). HID0/MS 22 I HID key state input (mute), active HIGH (PCM2704). MS input (PCM2705). HID1/MC 23 I HID key state input (volume up), active HIGH (PCM2704). MC input (PCM2705). HID2/MD 24 I HID key state input (volume down), active HIGH (PCM2704). MD input (PCM2705). HOST 21 I Host detection during self-powered operation (connect to V

operation (LOW: 100 mA, HIGH: 500 mA). PGND 19 — Analog ground for DAC, OSC and PLL PSEL 4 I Power source select. (LOW: self-power, HIGH: bus-power) SSPND 27 O Suspend flag, active LOW (LOW: suspend, HIGH: operational) TEST0 26 I Test pin. Must be set HIGH TEST1 25 I Test pin. Must be set HIGH V

BUS

CCL

CCP

CCR

COM

L 14 O DAC analog output for L-channel

OUT

R 15 O DAC analog output for R-channel

OUT

XTI 28 I Crystal oscillator input XTO 1 O Crystal oscillator output ZGND 11 — Ground for internal regulator

(1)

LV-TTL level

(2)

LV-TTL level, 5-V tolerant

(3)

LV-TTL level with internal pulldown

(4)

Connect decoupling capacitor to GND. Supply 3.3 V for self-powered applications.

10 — Connect to USB power (V 13 — Analog power supply for headphone amplifier of L-channel 20 — Analog power supply for DAC, OSC and PLL 16 — Analog power supply for headphone amplifier of R-channel 18 — Common voltage for DAC (V

7 — Digital power supply

(4)

(1)

(3)

). Max power select during bus-powered

(2)

(1) (1)

) for bus-powered operation. Connect to VDD for self-powered operation.

BUS

(4)

/2). Connect decoupling capacitor to PGND.

CCP

BUS

(1)

(4)

BLA-1600

(1)

1-17

BLA-1600

Block Diagram:

OUT

DOUT

COM

CCPVCCLVCCRVDD

Power

Manager

5-V to 3.3-V

Voltage Regulator

USB

DAC

S/PDIF Encoder

Analog

PLL

FIFO

Protocol

Controller

Control

Endpoint

ISO-Out

Endpoint

USB SIE

EEPROM

Interface

ZGNDDGNDAGNDRAGNDLPGND

†

XCVR

SSPND

BUS

D+ D–

CK DT HOST

PSEL

TEST0 TEST1

XTI XTO12 MHz

†

Applies to PCM2704DB

‡

Applies to PCM2705DB

PLL (×8)

96 MHz

HID

Endpoint

Tracker (SpAct)

SPI

Interface

HID0/MS

‡

HID1/MC HID2/MD

1-18

USB2504:

Pin Assignment:

BLA-1600

1-19

BLA-1600

Block Diagram:

1-20

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