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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
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It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
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Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
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Great manual very clear copied. You are making an incredible job. I appreciate a lot the rapidity and your efficiency. Thanks a lot
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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.
RXD-501/551/571/A5/701/751/771/A8
ADJUSTMENT
5. Cassette Deck adjustment
No ITEM INPUT SETTING OUTPUT SETTING DECK SETTING ALIGNMENT POINT ALIGN FOR FIG.
Unless otherwise specified, set the respective switches as follows: TAPE : NORMAL DOLBY : OFF PLAY OUT : Lch (X28,CN6 1pin), Rch (X28,CN6 4pin) ø. Cassette mechanism unit (Adjustment of the REC / PLAY head)
0dBs=0.775V
<1>
Demagnetization and cleaning
�
�
Power : OFF Demagnetization,cleaning, PLAY
Demagnetize the REC / PLAY head with the head erasRecording er.Clean the REC / head, erase PLAY head, erase head,capstan head,capstan and pinch roller pinch roller using a cotton swab slightly damped with alcohol. Adjust the output to maximum and adjust the azimuth adjustment screw for the Lissajours waveform pattern of the oscilloRVS scope to become close to a 45° straight line.
<2>
Azimuth of the REC/PLAY head
TCC�153 MTT�114 10kHz, � 10dB
(B)
PLAY FWD
¿. PC BOARD ADJUSTMENT <1> TAPE SPEED(NORMAL) TCC�110 MTT�111 SCC�1727 3kHz (B) PLAY
{
A DECK VR B DECK 5 VR 6
Adjust the tape speed so that 3kHz is obtained at the center of the tape.
¡. PC BOARD ADJUSTMENT A DECK VR 7 (L) VR 8 (R) B DECK VR 1 (L) VR 2 (R)
<1>
PLAYBACK LEVEL
MTT� 150 400Hz
(B)
PLAY
Adjust the playback output to -2.5dBs
<2>
(A) Adjust the AG for the output of BIAS CURRENT the DECK to become 400Hz (-20dB)/12.5kHz (-20dB)
X28, CN6
1 L IN GND
REC (B)
¤
PLAY
VR 3 (L) VR 4 (R)
Record 400Hz and 12.5kHz alternately, and adjust the bias current adjustment potentiometer for the playback levels to become the same.
L OUT
R OUT R IN 5
AC voltmeter
AG
Oscilloscope
AC voltmeter Frequency counter
(A)
(B)
16
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