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Good pdf of the service manual for this unit. Includes disassembly instructions, full schematics, board layouts, parts lists and diagnostic information. Some information is in the pdf twice (single pages, and split pages), but that could be how it was originally generated by panasonic, or perhaps the idea is to make it eaiser to put onto 8.5 x 11" pages.
Information was exactly what I needed. Delivery was overnight (less than 12 hours) and I was happy with the process.
5 STARS for FAST DELIVERY, BEST PRICES and QUALITY PRODUCT. Item was exactly as described with superb resolution. Will definitely source all my future requirements from this website. Thanks a lot owner-manual.com!
OEM manual provided all schematics, board layouts and component specs necessary to facilitate unit maintenance. All pages were clear and readable.
Good condition and quality. Hard to find anywhere in Internet, only on this site.
Exactly what I needed to be able to bring the amp back to life... will come back to this site the next time I need schematics.
5. Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 2.4 Â± 0.7 Vp-p.
S-curve waveform symmetry
A within 2.4 Â± 0.7 Vp-p B
level: 300 Â± 100 mVp-p
specified level : â¢ ââââââ Ã 100 = less than Â± 7% AâB 2 (A+B) â¢ A+B= 300 Â± 100 mVp-p 6. Remove the lead wire connected in step 1. Focus/Tracking Gain Adjustment (RV102, RV103) This gain has a margin, so even if it is slightly off. There is no problem. Therefore, do not perform, this adjustment. Please note that it should be fixed to mechanical center position when you moved and do not know original position. Adjustment Location :
6. After check, remove the lead wire connected in step 2. Note : â¢ Try to measure several times to make sure that the ratio of A : B or B : A is more than 10 : 7. â¢ Take sweep time as long as possible and light up the brightness to obtain best waveform. RF Level Check
oscilloscope BD (CD) board TP (RF) TP (VC)
[BD (CD) BOARD] â Side B â
Procedure : 1. Connect oscilloscope to test point TP (VC) and TP (RF) on BD (CD) board. 2. Turned Power switch on. 3. Put disc (YEDS-18) in and press the Â· (CD) key. 4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. Note : Clear RF signal waveform means that the shape âââ can be clearly distinguished at the center of the waveform.
IC102 TEI FEI RV102
RF signal waveform
VOLT/DIV: 200 mV TIME/DIV: 500 ns
level: 1.3 Â± 0.3Vp-p
E-F Balance (Traverse) Check
oscilloscope (DC range) BD (CD) board TP (TEO) TP (VC)
Procedure : 1. Connect the TP (TEI) and TP (VC) with lead wire. 2. Connect oscilloscope to test point TP (VC) and TP (TEO) on BD (CD) board. 3. Turned Power switch on. 4. Put disc (YEDS-18) in and press the Â· (CD) key. 5. Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0 Vdc, and check this level.
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