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Some of the pictures in this manual are a bit irritating. I had to dissassemble the unit and some of the screws have different threads, which is not mentioned in this manual. Also some of the drawings of the boards look different than the actual boards.
After all, the manual was very useful. I was able to recalibrate the capstan drive and it is working fine again.
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This manual is very good. 303 pages scanned in a very high resolution. My camera has bad, leaking capacitors which all of the V5000 models are suffering from these days.
There is a huge part list with all capacitors, transistors etc. in this manual which helped me a lot. Otherwise I would not have been able to buy replacement parts.
The dissassembly guide is very enormous and detailed. Unlike on the Panasonic MS1 manual I downloaded here it actually looks like the real parts look. And the screws are labeled correctly, so you shouldn't have any left after the repair. ;)
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has all the schematics you could need,and very well laid out format also has all part numbers along with an exploded view which is helpful
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Very nice to have! Now it is no problem to understand how it is put together.
Helps me a lot.
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good scans, all is clear. all pages in order. recommended
8-3
8-3
Test 13a : Select track 5 : For 1 kHz in Center channel and measure the crosstalk in Left, Right, Surround. Requirement : < -25 dB Test 14a : Select track 6 : For 1 kHz in Surround channel and measure the crosstalk in Left, Center, Right. Requirement : < -25 dB 2- Centre mode �normal� (use 3 kHz or 1 kHz tone) Test 11b : Select track 3 : For 3 kHz in Left channel and measure the crosstalk in Center, Right, Surround Requirement : < -25 dB Test 12b : Select track 4 : For 3 kHz in Right channel and measure the crosstalk in Surround, Left, Center Requirement : < -25 dB Test 13b : Select track 5 : For 3 kHz in Centre channel and measure the crosstalk in Left, Right, Surround Requirement : < -25 dB Test 14b : Select track 6 : For 1 kHz in Surround channel and measure the crosstalk in Left, Center, Right Requirement : < -25 dB Inputs overload test (headroom to visible clipping) General : Before starting these tests set Master Volume -15 dB lower to make a new output reference (1W on loudresistors). Requirement : check on scope for no visible signal clipping or measure THD <1,5 % Test 15 : Select track 7 : Check the Left output signal between 20 Hz ... 20 kHz Test 16 : Select track 8 : Check the Right output signal between 20 Hz ... 20 kHz Test 17 : Select track 9 : Check the Center output signal CENTER �SMALL� between 100 Hz ... 20 kHz CENTER �LARGE� between 20 Hz ... 20 kHz Test 18 : Select track 11 : Check the Surround output signal between 50 Hz ... 7 kHz Test 19 :Center Mode Check Select Center size �SMALL�. a - Select track 5 at 1 kHz : Adjust the Center output again with master volume for 1W output as 0 dB reference. b - Select on track 5 the 100 Hz : Signal to check the roll-off behaviour at -3 dB on the Center output c - Select on track 5 the 50 Hz : Signal and measure on the Left and Right output channels. The lost 50 Hz signal on the Center output is equally splitted and added to the L and R channels. Test 20 : Center Mode Check Select Center size �LARGE� Repeat test 19 a,b and c The difference is no roll off behaviour at 100 Hz (Center) and no splitted bass (50 Hz signal) added to L and R.
Test 21 : Center Mode Check Select Center mode phantom = Center speaker �No� Select track 5 (20 Hz ... 20 kHz) : No output signals on the Center output or at least minimum -40 dB related to 1W outputs. Measure now on the Left and Right output channels : the lost Center signals are equally splitted and added to these left and right channels (- 3 dB) Test 22 : 3 CH mode control Select Front 3 stereo (Rear speaker �No�) Select track 6 (100 Hz ... 7 kHz): No output signals on the Surround output channel or at least minimum -40 dB related to 1W output. Measure now at the Left and Right output channels : the lost Surround signals are equally splitted and added to the Left and Right output channels (-3 dB) Test 23 : 2 CH mode control (stereo) Select Surround �OFF� Select track 5 : No output on Centre output channel Select track 6 : No output on Surround output channel Test 24 : Time delay control in Surround channel Principle description encoded burst signal spots (see fig. 1) 1- Tone burst 1 kHz during 1 msec with interval time at 20 msec are given at the same time to the L ; R inputs. t t (in phase 0�) 2- The next tone burst is given at the same time to the L R input, but in reverse phase to the R input (180�). t t t These 2 tone bursts are repeated continuously during 2 minutes. Principle description decoded signal spots in Center/Surround channel - In case of 20 msec time delay mode the results are shown in fig. 1 in Center and Surround channel. The center spots in Center channel can be used as ìMarkerî spots (trigger signal) � repeated every 40 msec. The delayed surround spots occur at the same time as the center spots (markers) - When time delay mode is changed to 15 msec the delayed surround spots move to the left with respect to the centre mark spots. - When time delay mode is changed to 25 msec or 30 msec the delayed surround spots move to the right with respect to the center spots. - In case of no time delay ! (faulty condition) the surround spots fall just between 2 center markers spots (20 msec) How to check with a double beam scope WARNING: Be sure that the ground connection (-) of each instrument is not connecteded with the safety earth � connection. To avoid damage to output amplifiers (balance type) Use only cinch (input) ground connection Select Pro Logic size �LARGE� or �SMALL� (phantom in case of no Center output.) Select 20 msec time delay in Surround channel. Adjust scope at 5 msec/division and trigger at A input Connect input A to Center channel (or L or R in case of phantom mode) Connect input B to Surround channel Adjust trigger level and the X position to set pulse A in the middle of the scope . see fig.2 (if L or R used in phantom mode choose the largest (amplitude) pulse. see fig 3 Select track 24: Pulse A = 20 msec marker Pulse B = delayed surround signal pulse marker = A (adjust with X position) marker = A
A B
A B
20msec time delay
Fig 2 Fig 3
20msec in case of phantom mode
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