Panasonic SAPT660 - DVD HOME THEATER SOUND SYSTEM Quick start guide

Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Home Theater Products Repair
Panasonic Service and Technology Company
SA-PT660
SA-PT760 / 954 / 956
SA-PT960
SH-FX65, 67, FX85 (wireless)
For 2008-9 models:
Technical Guide
National Training
Sample Model SC-PT760 Home Theater System
Contents
Hints / Layout / Reset 4
Wireless Section 8
Power On Sequence 14
5 Disc Mechanism (CR-14)
o Operation 15
o Alignment 16
o Troubleshooting 21
o Laser replacement 25
Power Supply, 31
Protection Troubleshooting
(F61 or F76 Error Code) 34
No Audio (main unit) 39
SA-
PT760
Herb Chin

Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Panasonic Service and Technology Company
Produced by
Panasonic Services and Technology Company
National Training Department
Secaucus, NJ
Warning
This service information is designed for experienced repair technicians only and is not designed for use by
the general public. It does not contain warnings or cautions to advise non-technical individuals of potential
dangers in attempting to service a product. Products powered by electricity should be serviced or repaired
only by experienced professional technicians. Any attempt to service or repair the product or products dealt
with in this service information by anyone else could result in serious injury or death.
Copyright © 2008 by Panasonic Services Company
All rights reserved. Unauthorized copying and distribution is a violation of law

Slide # 3
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Home Theater Products Repair
Table of Contents
Electronics –Layouts / Hints
Hints – p/n, New codes, Tests, Reset 4
Layout w test points and PS voltages 5
Wireless
SH-FX65/66 Rear Receiver Setup 8
Wireless Troubleshooting Plan 9
Testing & Paring Trans & Rec 10
Transmitter / Receiver Repair Info 11
Power ON
Power On Sequence 14
Mechanism – stacked 5 Disc model CR-14
Operation 15
Alignment 16
Troubleshooting 21
Laser Replacement (removal & install) 25
Power Supply
PS Block with isolation strategy 31
PS Circuit with ref voltages 32
Protection
Protection Concept (F61 & F76 codes) 34
Protection Circuitry 35
Protection Repair Procedure 36
Audio
Concept 39
Speaker Output Waveform 40
Sample Problems & Repair Methods 41
SA-PT660
SA-PT760
SA-PT960
T
RSW
center
center SW
T
R
center
SW

Slide # 4
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Hints – I Common P/N, II Missing error codes, III Unplugged cable symptoms, IV Reset
I Popular Part Numbers
Description P/N Note
Remote SA-PT760,
PT960 N2QAyb 000 214
Remote SA-PT660 N2QAyb 000 210
Fan L6FAJCCH 0007
Output ICs C1bA 00000 487
Transmit Card Repx 0644b
Receiver card Repx 0645b
CR-14 Mechanism RD-DDC026-S Exch
Traverse / Laser Assem RR-DDtx002-V
II Error Codes not in the Service Manual:
Changer Error – appears when a button is pressed and the
mechanism is not responding. Go to the mechanism troubleshooting of
this book to determine if it is mechanical.
Sum Error – Incorrect communications with DVD board micro.
Transport is dead, DVD can not be selected. Replace 50 pin ribbon
cable or DVD bd.
F897 – Play the recovery disc and reset the unit. (see IV at left)
III Troubleshooting by cable Removal
Cable
Removed Display Symptom
1Large 50 pin
DVD cable
CN2001 off
Hello, Aux
(last input),
Close,
“change
error”
Fan on, No AM/FM mode,
No audio. Unit remains on.
Vol level # changes w knob
but no audio.
2 2 rear mech
cables off
(fp8531,fp8251)
Hello, Din. Fan on, Mech motor buzzes,
display skips DVD when
press Sel button, No audio.
3Main Bd.
CN2007 off None CN2007 is only for the
display. No display. Unit
works OK otherwise.
4PS Bd /
mech
CN2011 off
Hello,
Change,
Open.
Fan on, locked on last input
mode used but that audio
works fine with volume
control.
IV Reset after DVD Board replacement
1. After replacing the DVD board Play recovery disc
(p/n = RFKZD 03r005) containing firmware +
update. Select yes or no for update.
2. Reset –
1. Select DVD mode & wait for “1 No Disc” display.
2. Press >10 (remote) and (panel). = Stop.
3. Until the display = “INIT”.
4. While still pressing STOP , also press the remote
OK button until the word “RESET” appears.
5. Power off the unit and unplug for 1 min.

Slide # 5
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
PT760 Layout 1 – Top Level

Slide # 6
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
PT760 Layout – Bottom Level

Slide # 7
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Home Theater Products Repair
Table of Contents
Electronics –Layouts / Hints
Hints – p/n, New codes, Tests, Reset 4
Layout w test points and PS voltages 5
Wireless
SH-FX65/66 Rear Receiver Setup 8
Wireless Troubleshooting Plan 9
Testing & Paring Trans & Rec 10
Transmitter / Receiver Repair Info 11
Power ON
Power On Sequence 14
Mechanism – stacked 5 Disc model CR-14
Operation 15
Alignment 16
Troubleshooting 21
Laser Replacement (removal & install) 25
Power Supply
PS Block with isolation strategy 31
PS Circuit with ref voltages 32
Protection
Protection Concept (F61 & F76 codes) 34
Protection Circuitry 35
Protection Repair Procedure 36
Audio
Concept 39
Speaker Output Waveform 40
Sample Problems & Repair Methods 41
SA-PT660
SA-PT760
SA-PT960
T
RSW
center
center SW
T
R
center
SW

Slide # 8
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Home Theater Wireless Products
Panasonic Model
SA-PT660 – no wireless spks.
(optional FX67 or / & FX85)
SA-PT760 – wireless rear spks.
SA-PT960 – wireless rear spks + more pwr
SH-FX65/67
max range = 49’
ID set
button (back)
Receiver
Transmitter card
Wireless rear receiver
Optional for the ‘PT660
Transmitter card – REPX 0644b
Receiver card - REPX 0645b
Need a manual for the wireless
portions of the above units? Try a
model below.
SH-FX65 – takes spk wires.
SH-FX67 – takes spk plug.

Slide # 9
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
SA-PT760 Wireless Troubleshooting Plan
Wireless rear does not work – W1 or W2 display icons do blink at power on.
Wireless rear does not work – W1 or W2 display icons do NOT blink at power on.
1. RF connection has not been made. Go to slide 6 to pair the transmitter and receiver.
Steps 1-6.
2. Go to slide 8 to troubleshoot the receiver. Make sure there is standby voltage input the
receiver and the pair button is working (pin 9 grounds when the button is pressed.
3. Go to slide 7 to check the transmitter card Sw +5V voltage at the main board (CN2003)
or at the card socket itself CN6301).
1. The RF connection is OK. No audio is the problem. Replace the transmitter card if
hot (damaged when plugged in while the unit was powered on).
2. Go to slide 6 and follow steps 7 to turn on “S Music” mode (surround music). This
makes the rear surround speaker sound the same as main L & R.
3. Input an audio source (play some music).
4. Disconnect the speakers and turn the volume control to max (level number 50 is
displayed).
5. Go to slide 8. Check for audio at the receiver card CN1100/pins 2 & 4.
6. If there was no audio present at CN1100 (receiver), Go to slide 7. Check for audio at
the transmitter socket CN6301/pins 10 & 12.

Slide # 10
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Wireless Information – RF Pairing / Matching T & R
2. Transmitter card
5. ID Set button
ID
Set
3. Press
panel FF &
3 buttons
RF Pairing
1. Proximity – Bring the wireless receiver to the transmitter.
2. Power ON – Plug the transmitter card in. Turn everything on
and press the selector button for DVD mode. (Do not plug
the card in with the unit on. A damaged card will get hot.)
3. Setup – While the W1 / W2 icon is blinking in the unit’s
display, hold down the front panel FF button and the
remote’s “3” Button.
4. Indicators – a) W1 / W2 will blink on the main unit’s display
if the transmitter card is inserted. b) “P” icon will be
displayed when the pairing process is started.
5. Mating – While the “P” is present, press the rear receiver
recessed “ID Set” button.
6. Indicator – The W1 / W2 will stop blinking proving an RF
match has been made.
7. Audio Test – Repeatedly press the remote’s SOUND button until the
panel displays “S.Music”. Then press the arrow button to turn ON “S.
Music”. The rear speakers will have the same music as the front L & R.
8. W1 / W2 still blinking? – Use the troubleshooting info in the next pages.
On
7. Rear Audio Test
1. H. Bass
2. R.C. FCS
3. SRD Enh(ance)
4. S.Music

Slide # 11
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Wireless - Troubleshooting Information ½ - Transmitter part
Use this diagram to:
Prove that the T card is recognized (CN2003/pin 11).
Power is getting to the T card (CN2003/pin 9).
Audio is getting to the T card (CN2003/ pin 2-8).
Notes:
1. Measure the voltages at the CN2003 main board with the Transmitter
card / Bd. plugged in.
2. Channel 2 audio is present with a surround sound DVD or if the S
Music is turned ON. See the previous slide, step 7 for access S Music.
3. Channel 1 audio is only present when its 2nd room accessory
transmitter card is plugged in. Otherwise channel 1 is muted.
4. Data is only present when the T card is in.
Rear of Main Unit
When the T card is
inserted, the micro
blinks a W1 icon
Transmitter card – REPX 0644b
Receiver card - REPX 0645b

Slide # 12
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Wireless - Troubleshooting Information 2/2 – Receiver part
Use this diagram to:
Receiver card is getting power (CN1100/pin 5).
Receiver card is outputting Audio (CN1100/ pin 2).
Receiver card is not muting the audio (CN1100/ pin 10).
Transmitter card – REPX 0644b
Receiver card - REPX 0645b
SH-FX67
receiver / amp

Slide # 13
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Home Theater Products Repair
Table of Contents
Electronics –Layouts / Hints
Hints – p/n, New codes, Tests, Reset 4
Layout w test points and PS voltages 5
Wireless
SH-FX65/66 Rear Receiver Setup 8
Wireless Troubleshooting Plan 9
Testing & Paring Trans & Rec 10
Transmitter / Receiver Repair Info 11
Power ON
Power On Sequence 14
Mechanism – stacked 5 Disc model CR-14
Operation 15
Alignment 16
Troubleshooting 21
Laser Replacement (removal & install) 25
Power Supply
PS Block with isolation strategy 31
PS Circuit with ref voltages 32
Protection
Protection Concept (F61 & F76 codes) 34
Protection Circuitry 35
Protection Repair Procedure 36
Audio
Concept 39
Speaker Output Waveform 40
Sample Problems & Repair Methods 41
SA-PT660
SA-PT760
SA-PT960
T
RSW
center
center SW
T
R
center
SW

Slide # 14
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
1. Plug In, Press Power On
2. Fan turns on - starts noisy (high speed)
3. Hello is displayed
4. Last Mode used is displayed
(DVD, Aux, D-in, Am, FM, or IPod)
Unit Operation - Plug in, Power On Sequence
5. Use the panel “Select” button to
change modes or the < or >
buttons to change stations.
6. Tray 1 status is displayed (disc
tracks or time or No disc)
Trays
stocked
laser
Tray 1
Tray out
position
5. Micro checks “Top” & “Home” mech
switches to ID tray 1 (SW3 & Q3 = 0Vdc =
tray 1 loaded in the laser).
6. If tray 1 is not in the laser compartment
(default), the mech will load tray 1 in:
• Not tray 1 moves to stock (center) position. (Q1 UD
sensor = 0Vdc to stop rear traverse motor)
• Elevator moves laser assembly up to tray 1 level (SW 3
= 0Vdc at top level to stop the stock/elevator motor @
tray 1)
• Tray 1 is pulled into the laser assembly
• Mech clamps the disc
7. With Tray 1 in the laser compartment, Disc
Detection occurs – Laser moves away from home,
laser on, focus searches. Disc spins if a disc is found.
8. Tray 1 status (contents if any) is displayed.
DVD Mode
Aux, D-in, Am, FM, or IPod Mode
Fan
SA-PT760
mech
Top view
Tray
release
mech

Slide # 15
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
5 Disc Mechanism - Operation
Default position = Tray 1 is loaded into the laser assembly at plug-in, power-on when the DVD
function is selected. The remaining 4 trays are in the middle “stock” area.
Tray 5 selection – (button 5 is pressed)
a) Press 5 button – Display = “Disc 5”
b) Laser unclamps and the tray returns to middle stock location (TRV motor).
c) Display = “Change”
d) Laser assembly lowers to tray 5 location (Stocker motor).
e) TRV motor pulls tray 5 into the laser assembly.
f) TRV motor clamps the disc if any.
g) TRV motor moves the sled away from home position to begin disc readout for play.
All Trays out – (Close / Open button is pressed)
a) Laser drops down (unclamps) and tray returns to middle stock location (TRV motor).
b) Stocker motor continues to turn to internally catch all 5 gears of the #328 “OC” gear. When the last gear is
caught, all the trays are moved to the end of the stock area almost out of the mechanism (for disc insertion)
laser
Stock
location
Trays 2-5rear Side View

Slide # 16
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
5 Disc Mechanism - Concept & Transfer Alignment 1/4
Figure 1b – mech components
Operational Concept:
There are 2 motors and 8 sensors in the CR-14 mech.
I. The traverse motor moves:
• Laser back & forth
• Clamps disc
• Pulls trays into the laser assembly
II. The stocker motor moves
• Tray(s) between the middle stocker
area and out of the assembly
(for disc insertion)
• Traverse / laser platform up/dwn,
III. Trays moved from the stock area must be
transferred to the laser area.
1) Tray transfer is made after the traverse assembly
elevators to the desired tray level. The following
occurs in the rear traverse assembly:
2) The traverse motor uses arms to pull the tray into
gear #331. Pictures in the fourth slide 4/4.
3) SW4 opens (fp 8251) to tell the micro the tray is in.
4) The traverse motor continues to turn, bringing the tray
in, then clamps the disc
5) SW5 opens (fp 8251) at clamp end and sled moves
away from home.
6) The sled moves the laser to the approx TOC disc
area & stops. The laser comes on, lens focus
searches and if a disc is found, spins it.
7) SW4 and SW5 are both inside the Traverse
assembly.
laser
Stock
area
Trays 2-5rear
Figure 1a – Default position
side view
rear
Traverse
assembly p/n =
RD-DDtx002-V
Mech
p/n = RD-ddc 026-S
laser
Tray 1
Stock
motor
traverse
motor
Top
view

Slide # 17
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
5 Disc Mechanism - Assembly Transfer Alignment – Trays Out 2/4
Preparing the Traverse unit
for docking:
1. Trays Out (laser down)
2. Rotate the black gears so
the white slider and laser
are forward, as shown.
Next page is a close up
picture.
Rear
Figure 2

Slide # 18
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
5 Disc Mechanism Assembly Transfer Alignment – Trays Out 3/4
Preparing the Traverse unit for docking:
3. Slide the top #336 sub slide plate inside the
cutout to the left or as far as it will go without
force (pictured down).
4. This permits the other end of the #336 slide
plate to engage gear #331.
5. Rotate the #331 gear (cw) so the plastic arm
of the sub plate points past the triangle cutout, all
the way left as shown. This is the elevator position.
6. The rear Traverse portion of the mech is ready
for docking with the front tray assembly.
7. Optional - At the middle tray area (fig 4), you may
manually rotate the stocking motor gear so the black gear
hole lines up here. It will pwr to this position anyway.
8. Plug in the mech’s 3 ribbon cables and test.
rear
#331 gear
front
left Figure 3 Figure 4
cutout

Slide # 19
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
5 Disc Mechanism Assembly Transfer Alignment – Tray In 4/4
Fig 5 – Traverse assembly elevatored
up to tray level. Note position of #333
tray load lever for elevator operation.
Fig 6 – Traverse
motor moves #333
lever to pull tray 1 in.
Fig 7 - #333 lever
slips under tray 1.
Fig 8 - #333 lever pulls tray
1 into gear #331 on the
other side (not shown).
Gear #331 grabs the tray
teeth and pulls the tray into
the laser assembly.
rear
Lever
#333
Laser
area Stock
area
III. Trays moved from the middle stock area
must be transferred to the laser area.
• Tray transfer is made after the traverse
assembly elevators to the desired tray level.
• The traverse motor uses arms to pull the tray
into gear #331. Details in slide 4/4, above.
• SW4 opens (fp 8251) to tell the micro the tray is
in.
Operational Concept Conclusion
Gear #331

Slide # 20
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Home Theater Products Repair
Table of Contents
Electronics –Layouts / Hints
Hints – p/n, New codes, Tests, Reset 4
Layout w test points and PS voltages 5
Wireless
SH-FX65/66 Rear Receiver Setup 8
Wireless Troubleshooting Plan 9
Testing & Paring Trans & Rec 10
Transmitter / Receiver Repair Info 11
Power ON
Power On Sequence 14
Mechanism – stacked 5 Disc model CR-14
Operation 15
Alignment 16
Troubleshooting 21
Laser Replacement (removal & install) 25
Power Supply
PS Block with isolation strategy 31
PS Circuit with ref voltages 32
Protection
Protection Concept (F61 & F76 codes) 34
Protection Circuitry 35
Protection Repair Procedure 36
Audio
Concept 39
Speaker Output Waveform 40
Sample Problems & Repair Methods 41
SA-PT660
SA-PT760
SA-PT960
T
RSW
center
center SW
T
R
center
SW