DOWNLOAD Panasonic SA-PT880EE / SC-PT880EE Service Manual ↓ Size: 11.21 MB | Pages: 127 in PDF or view online for FREE

Model
SA-PT880EE SC-PT880EE
Pages
127
Size
11.21 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / DVD HOME THEATER SOUND SYSTEM
File
sa-pt880ee-sc-pt880ee.pdf
Date
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37
7.4.
Basic Troubleshooting Guide for HDMI AV output
Problems Checking 
Points
Checking 
components
1) Check setting of the set in 
Setup Menu whether the HDMI 
Video output is turned ON
* This year HDMI always ON. 
No need check Setup Menu. 
If no resolution selection GUI, then 
only check SETUP. 
2) +5V Supply to the TV
IC3952 (Pin 4)
3) HDMI Connector Solderability 
condition
P3901
4) HDMI Output TDMS signal  
lines (IC3901)
- Data (TX0P/M => 14, 16)
- Data (TX1P/M => 18, 20)
- Data (TX2P/M => Pin 22, 24)
- Clock (TXCP/TXCM =>
Pin 10, 12)
L3905
L3904
L3903
L3906
- Data, SDA (Pin 120, IC3901)
- Clock, SCL (Pin 121, IC3901)
5) HDMI Transmitter
communication lines to TV
6) HDMI Transmitter
communication from LSI (IC8001)
(I2C_SCL/I2C_SDA signals) 
7) Local Port Slave Address 
setting resistor at Pin 99 of HDMI
Transmitter LSI IC (IC3901) for
LPSA signal
8) HDMI Transmitter LSI IC
(IC3901) +3.3V Supply
9) HDMI Transmitter LSI IC
(IC3901) +1.2V Supply
10) HDMI Up-Con +3.3V Supply
12) Up-Con IC I2C Data and
Clock Line
LB3905, R3905, Q3902, R3904 
LB3904, R3907, Q3903, R3906 
RX3901
R3921
LB3901, LB3902, IC3901
(Pin 9, 13, 17, 21, 25, 124)
IC3901 (Pin 5, 26, 42, 47,  55, 75,
85, 102, 109, 116, 123), LB3908,
IC8151 (Pin 4), LB8001, IC8001
(Pin 20, 44, 83, 158, 187, 211)
1) TV does not have any 
display. Set FL display 
shows U702/U703
LB3901
11) HDMI Pixel Clock Output from
Up-Con to HDMI Transmitter
(VCLK)
LB8901
RX3901
38
Problems Checking 
Points
Checking 
components
13) Hot-Plug Signal
14) TDMS Output swing amplitude
control resistor
LB3906, R3902, R3903, Q3901,
D3901
R3901
15) Host Interface External Input
Clock from LSI (IC8001) to 
Up-Con IC (IC3901) - OSC27M
LB8702
16) Video Data Lines from LSI
(IC8001) to Up-Con (IC3901)
RX3707, RX3708, IC3901 
(Pin 92 to 95, Pin 87 to 90)
1) Supply for Up-Con (IC3901) 
     - Pin 9,124
2) GND for Up-Con
     - Pin 7,125
3) Check for capacitor short to
GND
LB3902
1) Check digital video data line
from LSI(IC8001) to Up-Converter
(IC3901), VOUT0-VOUT7.
RX3707, RX3708
C3902, C3928, C3925
1) TV does not have any 
display. Set FL display 
shows U702/U703
2) When switching the video
 output mode from 480p to 
720p/1080i, TV display
becomes blank
3) Color Problem. TV Screen
is White/Blue/Purple
1) Audio data lines
2) Check setting of the set in
Setup Menu whether the HDMI
Audio output is turned On
R8402, RX8402
* Check for solder short and/or
component missing/damaged
as well as signal condition.
4) HDMI got no audio output
39
8 Disassembly and Assembly Instructions
Caution Note:
• This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo-
nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in the service
manual)
• Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed.
• During the disassembly and/or assembly process, please handle with care as there may be chassis components with
sharp edges.
• Avoid touching heatsinks due to its high temperature after prolong use. (See caution as described below)
• During disassembly and assembly, please ensure proper service tools, equipments or jigs is being used.
• During replacement of component parts, please refer to  the section of “Replacement Parts List” as described in the
service manual.
• Select items from the following indexes when disassembly or replacement are required.
• Disassembly of Top Cabinet
• Disassembly of AC Inlet P.C.B.
• Disassembly of Rear Panel
• Disassembly of DVD Mechanism Unit (DLS6E)
• Disassembly of Front Panel Block Assembly
• Disassembly of FL P.C.B.
• Disassembly of Power Button P.C.B.
• Replacement of Cradle Lid
• Disassembly of iPod Cradle Assembly
• Disassembly of iPod/iPhone P.C.B.
• Disassembly of USB P.C.B.
• Disassembly of Mic P.C.B.
• Replacement of DVD Lid Unit
• Disassembly of Front Shield Unit
• Disassembly of Main P.C.B.
• Disassembly of D-Amp P.C.B.
• Replacement of Digital Amplifier IC (IC5100/IC5200)
• Disassembly of Power P.C.B.
• Disassembly of SMPS P.C.B.
• Replacement of Switching Regulator IC (IC5701)
• Replacement of Rectifier Diode (D5702)
• Replacement of Regulator Diode (D5802)
• Replacement of Regulator Diode (D5803)
• Disassembly of Wireless Adapter P.C.B.
• Disassembly of Fan
40
8.1.
Disassembly Flow Chart
8.5. Rear Panel
8.17. Main P.C.B.
8.27. Fan
8.21. SMPS P.C.B.
8.4. AC Inlet P.C.B.
8.3. Top  Cabinet
8.19. Digital Amplifier
IC
(IC5100/ IC5200)
8.6. DVD Mechanism Unit
(DLS6E)
Power P.C.B.
8.20.
8.22. Switching Regulator 
IC (IC5701) 
8.23. Rectifier Diode 
(D5702)
8.24. Regulator Diode
(D5802)
8.25. Regulator Diode 
(D5803)
8.7. Front  Panel
Block Assembly
8.8. FL  P.C.B.
8.9. Power  Button
P.C.B.
8.12. iPod/iPhone P.C.B.
8.10. Cradle Lid
8.14. Mic P.C.B.
8.13. USB P.C.B.
8.16. Front Shield
Unit
8.15. DVD Lid Unit
8.11. iPod Cradle 
Assembly
8.18. D-Amp P.C.B.
8.26. Wireless  Adapter 
P.C.B.
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