Panasonic SAHT730 Support Question
Panasonic SAHT730 Support Question
Find answers below for this question about Panasonic SAHT730 - DVD THEATER RECEIVER.Need a Panasonic SAHT730 manual? We have 2 online manuals for this item!
Question posted by dhub227 on May 6th, 2014
Panasonic Sa-ht730 Dvd Does Not Play Voices
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Current Answers
Related Panasonic SAHT730 Manual Pages
Dvd Theater Receiver - Page 2
...System Main unit Front speakers Center speaker Surround speakers Active subwoofer
SC-HT730 SA-HT730 SB-FS730 SB-PC730 SB-FS731 SB-WA730
SC-HT733 SA-HT733 SB-FS730 SB-PC730 SB-FS731 SB-WA733
SC-HT930 SA...device must accept any interference received, including interference that interference will not occur in accordance with Part 15 of North America One Panasonic Way Secaucus, NJ 07094 Telephone...
Technical Guide - Page 2
... a product.
SA-HT730 / SAHT930
2 Photoshop is not designed for use by anyone else could result in the United States or other countries. BBE, the BBE logo, Sonic Maximizer and High Definition Sound are trademarks or registered trademarks of Digital Theater Systems Corporation. Products powered by electricity should be serviced or repaired only by Panasonic Services...
Technical Guide - Page 3
... Paths to trace down no audio (one or more channels 22
SA-HT730 / SAHT930
3 Table of Contents
OBJECTIVE...4
I NO START-UP AND DVD TRANSPORT PROBLEMS 5
1. SENSORS, BELTS, AND MOTOR LOCATION 6 3....III NO AUDIO PROBLEMS 22
How to System Control IC2018 for Shutdown Problems 15 Control Unit Protection Concept 16
SUBWOOFER UNIT REPAIR (SB-WA730 / SA-WA930 17 Subwoofer Repair Strategy - WHERE...
Technical Guide - Page 4
... troubleshooting procedures that contribute to a speedier repair of the
product. • Provide examples of typical problems that may have occurred in similar types of
circuits. SA-HT730 / SAHT930
4
Technical Guide - Page 5
... loading sensors. Tray Installation (after Repairs)
3. Time 0 0 1 sec 4 sec 5 sec
8 sec. 17
SA-HT730 / HT930 Power ON sequence
Operation
Display
Proof
AC input. Press Power button
Disc # 1-5 light in the DVD
transport stops the start up
symptoms are often caused by DVD transport problems -
Loading motor moves the
Two loading sensors are open / tray...
Technical Guide - Page 6
... to access the parts shown below. Part numbers Tray Belt = RDV0073 Loading Belt = RDV0073 Loading Motor = REM0112 Tray Motor = same as above
SA-HT730 / SAHT930
6
Volts missing 4.
Traverse
Motor 5. Use disassembly section 4 to test the parts. IC8251 - b) Sled moves out to DVD TOC location.
c) Laser ON. Ribbon cable
2. Table 2
Checkout Failure
1. g) Laser ON.
Technical Guide - Page 7
Simulated Failure Symptoms -
Tray position
Q9101 open . Unit does not shutdown. Motor = 14 ohms
SA-HT730 / SAHT930
7 CN2010 ribbon cable p/n = REZ1484 (11 pins) CN2011 ribbon cable p/n = REZ1483 (10 pins)
Sensor 1. Tray Rotation Motor
Cable CN2010 CN2010 CN2010 CN2011 CN2011
CN2011 CN2010
...
Technical Guide - Page 8
... the larger tab (closest to you) inward toward the center of the black tray, remove the front silver trim piece (not shown). 3. Tray removal revealed
SA-HT730 / SAHT930
8
CN2010
Contacts = rear
CN2008
Contacts = left
CN2009
Contacts = rear 4.
Technical Guide - Page 9
Procedure: 1. White gear - Without crushing the tray's ribbon cable, slide the tray halfway into CN2010. Plug in figure 3. The cable's contacts face rearward. 5. SA-HT730 / SAHT930
9 Main black gear -
In this gear position, the laser assembly is horizontal as shown. 3. 5. Rotate the (now free moving) left white gear so that ...
Technical Guide - Page 10
... is good Motor must turn belt and the main black gear into the disc unclamped position. Loading (Tray In - Out) Motor Circuit
Cutout shows Q9001
SA-HT730 / SAHT930
10 If the parts test OK, the problem is mechanical or a ribbon cable is normally open but so can see the sensor in / out...
Technical Guide - Page 11
... transit.
Before the unit shuts down, rotate the tray past the disc sensor. Table 5
Proof the part is good Power to begin the remaining tests. 2. SA-HT730 / SAHT930
11 Press the power on button.
Rotate the tray motor gear by hand. Tray position sensor Q9101 7.
Pin 10 = 0V, 2V, 5.6V
3.6Vdc
CN2010...
Technical Guide - Page 12
...) or the subwoofer (SB-WA730/WA930).
Subwoofer unit repair starts on the top as test points. The SA-HT930 / SA-HT730 control piece (figure 6, right) has no AC input. All parts are under the board. SA-HT730 / SAHT930
12 The subwoofer (left) houses the power output amplifier for all the shutdown possibilities
Refer to test...
Technical Guide - Page 13
Refer to an exact circuit. Cut Jumper wire Concept
unit. Thereafter, repairs are located.
SA-HT730 / SAHT930
13 Figure 7 - Repair Information
Control Unit Repair (SA-HT730 / SA-HT930) Strategy
SC-HT730 / SC-HT930 Repair Strategy for both models. Cutting specific jumpers on the board to isolate the problem. Troubleshooting of the control unit is quickly done ...
Technical Guide - Page 14
... is now present at one at these jumpers to determine which is in the subwoofer assembly and not in the control unit. Trace down (reduced). SA-HT730 / SAHT930
14 First prove the problem is the load jumper that the jumper is in the control unit by cutting the W2344 jumper on the...
Technical Guide - Page 15
.../ PIN 4 Subwoofer
TP Jumpers (eg. Jumper Paths to System Control IC2018 for Shutdown Problems
SYS 6 from the top of JK2000 From SUB W
SYSTEM CONTROL
IC2018
DC Det
SW5 source Q2813 /E
W2550 /M7...INTERRUPTER
Q9103/pin1
1 2 3 4 5 6 7 8 9
ML
K
J
I
HG
FE
D
C BA
SA-HT730 / SAHT930
Figure 9 - W2145 /M6
Stby 6V
D2001
W2541 /K6
Pull up resistor
R2069
Pin 2 of the board. Jumper Paths...
Technical Guide - Page 16
Control Unit Shutdown Simplified Schematic
SA-HT730 / SAHT930
16 Control Unit Protection Concept
Figure 10 -
Technical Guide - Page 17
...protection monitoring circuitry in both the control & subwoofer [but has less front channel wattage.
The SC-HT730 model is similar but standby voltage (SYS 6V) is part of the subwoofer (left) and ... relay, shutting off the power for shutdown are connected by isolating the problem
SA-HT730 / SAHT930
17 Refer to figure 11. The SC-HT930 consists of each other or the unit ...
Technical Guide - Page 18
... of transistors causes D508/A voltage to 5-9Vdc (normal voltage): SB-WA930 -
If RLY501 contacts are shown in the control unit, but Do not do both.
2. E.g. SA-HT730 / SAHT930
18 Check the control unit.
4. the problem is unbalanced (+V not = -V). See subwoofer repair below. 7. Disassembly and service positions are shorted, momentarily plug the subwoofer...
Technical Guide - Page 22
... Older stereo-only movies (no SFC light) will work. When playing a DVD movie ...stereo sound. When the remote's "Super Srnd" is pressed.
Notice: When a headphone is plugged in the display and) all 6 channels output audio.
2.
III "No Audio" Problems
A loss of accessible capacitors in the signal flow or a line being muted. How to figure 15. DVD - TV, VCR, and FM - SA-HT730...
Technical Guide - Page 23
... on. e) Stop the test tone sequence -
The test tone lasts for DVD mode. The front panel
display will show the speakers that are
for approx ...DVD / CD (front
panel display). c) On the remote top opaque buttons, press DVD (so the remote buttons are producing the test tone.
b) Press the front panel or remote input selector to determine where the signal is lost. Figure 16
SA-HT730...
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