DOWNLOAD Panasonic SA-PT170EE / SC-PT170EE Service Manual ↓ Size: 6.81 MB | Pages: 127 in PDF or view online for FREE

Model
SA-PT170EE SC-PT170EE
Pages
127
Size
6.81 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / DVD HOME THEATER SOUND SYSTEM
File
sa-pt170ee-sc-pt170ee.pdf
Date
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41
7.1.3.3.
Power Amplifier IC Configuration
Table 1
PT170EE-K
Pin (2) 
Front Right  
IC5100
Pin (12)
Front Left 
Pin (2) 
Surround
Right
IC5200
Pin (12) 
Surround 
 Left 
Pin (2) 
Sub-Woofer + 
IC5300
Pin (4) 
Sub-Woofer - 
Pin (12)
Center + 
Pin (10) 
Center - 
42
7.2.
Basic Troubleshooting Guide for Traverse Unit (DVD Module P.C.B.)
Problems 
Checking Points
Checking components
b) Check video signals (Y,C)
LB8301, R8321, R8323,
LB8302, R8325, R8327
a) Check SDRAM address, data 
bus, CLK and other control signals 
waveform
IC8051
1) Distorted picture or 
abnormal sound is head 
during the initialization
c) Check audio DAC circuitry 
* Compare the above with 
OK condition DVD Module
P.C.B
IC8421 (Pin 9 to 11 & 17 to 22)
LB8425, LB8426, LB8427,
LB8428, LB8429, LB8431
*Check for solder short and/or  
component missing/damaged 
b) Check laser drive circuitry 
(Voltages & current) 
Q8551, Q8552  (For DVD),
Q8561, Q8562  (For CD)  
a) Check motor driver circuitry 
(+5V)
IC8251 Pin 8, 21
2) No TOC/Long TOC
c) Check LSI IC connection to
motor drive circuitry 
* Compare the above with OK 
condition DVD Module P.C.B. 
IC8001 Pin 66, 67
IC8251 Pin 15 to 16 
* Check for solder short and/or 
component missing/damaged 
a) Check connection from 
DVD Module to Traverse unit 
FP8251
3) Disc not spinning
4) Traverse not moving
5) Traverse and spindle 
abnormal  movement
b) Check motor driver circuitry on 
the voltages and control signals 
* Compare the above with 
OK condition DVD Module P.C.B.
IC8251
* Check for solder short and/or  
component damaged
6) Cannot read the disc but 
spindle motor is spinning
- Cannot read CD/DVD
a) Check laser drive circuitry 
(voltages and current) 
     - Check CD Laser Drive 
     - Check DVD Laser Drive 
* Check voltages and LD current 
and compare with OK condition 
DVD Module P.C.B.
Q8551, Q8552, LB8551
(For DVD Laser Drive current) 
Q8561, Q8562, LB8561 
(For CD Laser Drive current)  
7) Block Noise during play 
a) Check SDRAM address and
data bus signal
IC8051
8) Jitter out of specification
a) Check LD current
b) Check OPU (Change to other 
unit and confirmed operating
condition)
OPU Unit (Traverse unit), FPC
connection (FP8531 & FP8251) 
43
7.3.
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
44
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
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