Panasonic SA-BTT790EE / SC-BTT790EEK Service Manual ▷ View online
89
13.3.2.
Checking and Repairing D-Amp
P.C.B. (Side A)
P.C.B. (Side A)
Step 1 Remove Top Cabinet.
Step 2 Remove D-Amp P.C.B..
Step 3 Upset the D-Amp P.C.B. and position it onto the insu-
lated material.
Step 4 Connect 4P Cable at the connector (CN5400) on D-
Amp P.C.B..
Step 5 Connect 23P Extension Bridge Connector (RFKZ0216)
from CN2303 to CN5402.
Step 6 Proceed to check and repair Side A of D-Amp P.C.B..
Step 2 Remove D-Amp P.C.B..
Step 3 Upset the D-Amp P.C.B. and position it onto the insu-
lated material.
Step 4 Connect 4P Cable at the connector (CN5400) on D-
Amp P.C.B..
Step 5 Connect 23P Extension Bridge Connector (RFKZ0216)
from CN2303 to CN5402.
Step 6 Proceed to check and repair Side A of D-Amp P.C.B..
13.4. Checking and Repairing SMPS
P.C.B.
Step 1 Remove Top Cabinet.
Step 2 Detach 9P Bridge connector at the connector (CN2309)
on Digital P.C.B..
Step 3 Release the Red Wire (TL11) and Black Wire (TL21)
from Wire Holder.
Step 2 Detach 9P Bridge connector at the connector (CN2309)
on Digital P.C.B..
Step 3 Release the Red Wire (TL11) and Black Wire (TL21)
from Wire Holder.
Step 4 Remove 4 screws.
Step 5 Lift up the SMPS P.C.B..
Step 5 Lift up the SMPS P.C.B..
Step 6 Upset the SMPS P.C.B. and position it onto the insu-
lated material.
Step 7 Connect 9P Extension Bridge Connector (RFKZ0323)
from CN2309 to JW2.
Step 8 Proceed to check and repair SMPS P.C.B..
lated material.
Step 7 Connect 9P Extension Bridge Connector (RFKZ0323)
from CN2309 to JW2.
Step 8 Proceed to check and repair SMPS P.C.B..
90
14 Measurements and Adjustments
14.1.
Standard Inspection Specifications after Making Repairs
After repairing Digital P.C.B. and BD Traverse Unit, it is recommended to perform the following inspection to ensure normal opera-
tion of main unit.
tion of main unit.
Use the following checklist to establish the judgment criteria for the picture and sound.
No.
Procedure
Item to Check
1
Turn on the power, and confirm items pointed out.
Items pointed out should reappear.
2
Insert RAM disc.
The Panasonic RAM disc should be recognized.
4
Perform playback for one minute using the RAM disc.
No abnormality should be seen in the picture, sound or operation.
*Panasonic DVD-RAM disc should be used when recording and play-
back.
*Panasonic DVD-RAM disc should be used when recording and play-
back.
5
Perform playback for one minute using the BD-Video disc.
No abnormality should be seen in the picture, sound or operation.
6
If a problem is caused by a BD-Video disc, VCD, DVD-R, DVD-
Video, Audio-CD, or MP3, playback the test disc.
Video, Audio-CD, or MP3, playback the test disc.
No abnormality should be seen in the picture, sound or operation.
7
After checking and making repairs, upgrade the firmware to the
latest version (refer to 3.2).
latest version (refer to 3.2).
Make sure that [UPD OK] appears in the FL displays.
*[UNSUPPORT] display means the unit is already updated to newest
same version. Then version up is not necessary.
*[UNSUPPORT] display means the unit is already updated to newest
same version. Then version up is not necessary.
8
Transfer [9][9] in the service mode setting, and initialize the ser-
vice settings (return various settings and error information to
their default values. The laser time is not included in this initial-
ization).
vice settings (return various settings and error information to
their default values. The laser time is not included in this initial-
ization).
Make sure that [CLR] appears in the FL display.
After checking it, turn the power off.
After checking it, turn the power off.
Item Contents Check
Item Contents Check
Picture
Block noise
Sound
Distorted sound
Crosscut noise
Noise (static, background noise, etc.)
Dot noise
The sound level is too low.
Picture disruption
The sound level is too high.
Not bright enough
The sound level changes.
Too bright
Flickering color
Color fading
Flickering color
Color fading
91
15 Overall Simplified Block Diagram
27MHz
16
x1
x1
1Gb
1Gb
NFROM
2Gb
16
16
HUB!
HUB2
HUB3
8
8
Driver IC
Driver IC
HDMI-RX
FL
DRV
FAN
Optical (IEC)_IN
FE_debug
PATA
IEC2
Timer I/F
IC_Card
TSIN
IECIN
AIN(Multi ch support)
VIN(36bit,clk,H,V)
HDMI-Tx
VDAC
SDIF3
SDIF1
Ether
USB0
USB1
SDIF2
DDR3+
EXbus
DDR3
Exbus
Support Card
Conn I/F
Conn I/F
iPhone
Audio
Video
Wifi
Ether
PHY
PHY
Video
IC
Rear
Wireless
Video
Buffer
HUB
Front USB
Rear USB
Ethernet
SD Card
Vout
HDMI
Speaker Connection
L/R out
DAMP
Audio
DSP
PWM
Processor
DAMP
DAMP
SL/SR out
CNT/SW out
BP4
AOUT2(7.1ch)
AOUT2(DMIX)
FM Tuner
AUX
iPhone Analog Audio
FM Tuner
IC
Timer
u-com
92
16 Block Diagram
16.1. System Control
SA-BTT790EE/GN SYSTEM CONTROL BLOCK DIAGRAM
3
3
P6001
CN2304
MICROPROCESSOR
RFKWMBTT49GN...GN
RFKWMBTT79EE...EE
RFKWMBTT79EE...EE
IC2300
X2301
FL DISPLAY
DRIVER
DRIVER
C0HBB0000057
SD CARD
SLOT
SLOT
P6802
USB PORT
P6803
IC6001
FLD DAT 25
7 DIN
FL DAT
14
P6801
DP
12
P6801
VBUS
13
P6801
DN
2
2
P6001
CN2304
FLD CLK 26
FL CLK
1
1
P6001
CN2304
FLD STB 19
2 I2C SDA
COPROCESSOR 2
MFI337S3959
IC2304
6 I2C SCL
7 RESET
XCIN 8
XCOUT 9
X2300
XIN 13
XOUT 11
FL STB
4
4
P6001
CN2304
RMT
RMT
11
11
P6001
CN2304
BZ DOWN H 66
BZ DOWN H
12
12
P6001
CN2304
BUZZER 73
BUZZER
KEY2 89
KEY2
8 CLK
9 STB
DP6001
FL DISPLAY
28
29
F+
F+
F+
1
2
F-
F-
F-
3.3V
REMOTE CONTROL
SENSOR
IR6001
BUZZER
BZ6201
RMT 3
HDMI CEC
QUICK PCONT
75
QUICK PCONT
QUICK PCONT
XBPRST
CSBPTM
DR P ON H
P STANDBY H
CSCLK
SD BOOT
DC DET2
24
DC DET2
DC DET2
FAN A/D
95
FAN AD
FAN AD
iPod DET
FX DO
55
FX DO
FX DO
DAP MUTE
32
DAP MUTE
DAP MUTE
FX DET
41
FX DET
FX DET
FX INT
57
FX INT
FX INT
SYNC
17
SYNC
SYNC
DC DET1
23
DC DET1
DC DET1
CEC
15
STOP
S6001
PLAY
S6003
VOLUME -
S6004
OPEN/CLOSE
S6002
POWER
S6501
VOLUME +
S6005
CSBMTP
46
CSBMTP
XMPREQ
18
XCMPREQ
CSBPTM
45
CSBPTM
CSCLK
47
CSCLK
FAN D/A
1
PCONT
48
PCONT
PCONT
CSBMTP
XCMPREQ
iPhone CLK
iPhone CLK
i
Phone RST
iPhone RESET
DSP IRQ
71
XCINTM OUT
52
XCINTM
BP STATE
59
BP STATE
XCINTM
BP STATE
HDMI CEC
iPhone DA
iPhone DA
FX CLK
54
FX CLK
FX CLK
FX SCS
43
FX SCS
FX SCS
FX DI
56
FX DI
FX DI
iPod DET
72
iPod DET
XBPRST
SD BOOT
61
SD BOOT
TRY PFAIL
TRY PFAIL
XBPRST
58
TRY PFAIL
82
TRY DILECT
TRY DILECT
TRY DILECT
79
TRY OP CL
TRY OP CL
TRY OP CL
42
DR P ON H
DR P ON H
5
HDMI P ON H
HDMI P ON H
HDMI PON H
76
AMUTE
AMUTE
AMUTE
74
XCINTP
XCINTP
XCINTP
51
P STANDBY H
P1 ~ P16
G1 ~ G8
1
1
CN2305 H6000
KEY1 90
KEY1
KEY1 BTN
KEY INT 16
3
3
CN2305 H6000
KEY1 BTN
2
2
H6001* H6500*
FROM/TO
AUDIO & VIDEO
AUDIO & VIDEO
FROM/TO
POWER SUPPLY
(MAIN SECTION)
POWER SUPPLY
(MAIN SECTION)
FROM/TO
DIGITAL
IN VOLUME 2
DIGITAL
IN VOLUME 2
TO
POWER SUPPLY
(DIGITAL SECTION)
IN VOLUME 2
POWER SUPPLY
(DIGITAL SECTION)
IN VOLUME 2
NOTE: “ * ” REF IS FOR INDICATION ONLY
DIGITAL P.C.B.
Q6201,Q6202,QR6201
BUZZER
CIRCUIT
CIRCUIT
100
P STANDBY H
PANEL P.C.B.
POWER BUTTON P.C.B.
OPERATION BUTTON P.C.B.
DAT0
7
DAT1
8
DAT2
9
DAT3
1
VBUS
1
DN
2
DP
3
7
P6801
DAT0
9
P6801
DAT1
5
P6801
DAT2
4
P6801
DAT3
VBUS 1
FROM/TO
DIGITAL
IN VOLUME 2
DIGITAL
IN VOLUME 2
DP 1
DN 1
FL DAT
DP
VBUS
DN
FL CLK
FL STB
BZ DOWN H
BUZZER
KEY2
KEY1
DAT0
DAT1
DAT2
DAT3
DP 1
VBUS 1
DN 1
DAT0
DAT1
DAT2
DAT3
DAT0
DAT1
DAT2
DAT3
FAN DC OUT
FAN LOCK
Q5400,Q5403
FAN
CONTROL
CIRCUIT
OP-AMP
C0ABBA000168
IC5401
1
CN5401
3
CN5401
FAN UNIT
12V
: USB/SD SIGNAL LINE
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