FUNAI BLA-1600 SERVICE MANUAL
BLA-1600
MANUALSERVICE
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
CONTENTS
Important Safety Instructions ...............................................
Disassembly .........................................................................
Bottom Cabinet ........................................................................................
Rear Plate ...............................................................................................
Amplify Board ..........................................................................................
Display Board ..........................................................................................
Key Board ...............................................................................................
Main Board .............................................................................................
USB Host Converter .................................................................................
USB Host Converter Board .....................................................................
BLA-1600
1-4
1-4
1-4
1-4
1-5
1-6
1-6
1-7
1-8
1-8
PARTS LIST ........................................................................
Exploded View of General Assembly and Part List ..............................
Electrical Part List .................................................................................
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
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
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
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
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
V
SS0
V
DD0
P30
P31
Note 1
Note 1
Note 2
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
PP
V
XT1
XT2
RESET
DD
AV
AV
REF
P10/ANI0
1-8
Note 2
P20/SI30
P36/SCK31
P21/SO30
P22/SCK30
P24/TxD0
P23/RxD0
SS
DD1
V
AV
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
Note 2
SO31
Note 2
WR
WAIT
ASTB
BLA-1600
Notes 1. SDA0 and SCL0 are incorporated only in the µPD78F0034AY Subseries.
µ
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
µ
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. – –
AV
SS – A/D converter ground potential. – –
AV
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 ––
V
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 1
Note 2
Note 2
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.
µ
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
AV
DD
AV
SS
AV
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
V
DD0
Notes 1. Incorporated only in the µPD78F0034A
µ
2. Incorporated only in the
PD78F0034AY
V
DD1VSS0VSS1VPP
1-13
BLA-1600
AP1509:
Pin Assignment:
(Top View)
IN
V
Output
FB
SD
1
2
3
4
SOP-8L
Pin Description:
Name Description
GND
8
GND
7
6
GND
GND
5
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
up
SD
Comp
Comp
200mV
+
_
_
+
220mV
V
IN
1-14
FB
+
_
Amp
Frequecy
compen-
sation
_
Comp
+
150kHz
OSC.
Pre-driver
Thermal
Shutdown
2A
Switch
Output
Gnd
BLA-1600
AP130:
Pin Assignment
( Top View )
321
(SOT89)
Pin Description
1 OUT
2 GND
3 IN
ʳ
ʳ
ʳ
ʳ
IN: Power Input
OUT: Output Voltage
GND: Ground
Block Diagram
IN
Current
Limit
Thermal
Shutdown
ʳ
-
Bandgap
+
ʳ
OUT
Error
Amp
1.08V
GND
1-15
BLA-1600
PCM2704:
Pin Assignment:
XTO
CK
DT
PSEL
DOUT
DGND
V
DD
D–
D+
V
BUS
ZGND
AGNDL
V
CCL
V
OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
L
14
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
V
R
OUT
1-16
5
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
V
CCL
V
CCP
V
CCR
V
COM
V
DD
V
L 14 O DAC analog output for L-channel
OUT
V
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)
(1)
(1)
(3)
(3)
(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)
(4)
BLA-1600
(1)
1-17
BLA-1600
Block Diagram:
V
V
OUT
V
OUT
DOUT
COM
V
CCPVCCLVCCRVDD
Power
Manager
5-V to 3.3-V
Voltage Regulator
USB
L
DAC
R
S/PDIF Encoder
Analog
PLL
FIFO
Protocol
Controller
Control
Endpoint
ISO-Out
Endpoint
USB SIE
EEPROM
Interface
ZGNDDGNDAGNDRAGNDLPGND
†
XCVR
SSPND
V
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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