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The AKAI 1720 model reel to reel tape recorder described in this Manual is quite an old unit - circa late 1960's. As a consequence, the description of the mechanical details - and adjustments thereof - is quite critical. The manual does this quite well. The schematics are also well presented and have detailed PCB overlays. Probably the only negative is that some half-tone detail has been lost from the original manual as it has been scanned in simple B&W.
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Perfect source for service manuals: fast and professional transaction; high quality, perfect readable and largely scaleable PDF; complete schemes, diagrams and spare part list. Tnx a lot, cu again!!!!
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I got your link from a friend and I must say that I am really satisfied with your service. Specially this B&O manual I didn't find anywhere on the web... but you could deliver it :-) . You deliver very fast and the copy is of good quality. So your webpage is bookmarked. Thanks
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This was the Sony CCU-500A Service manual I was looking for.
The price was reasonable.
The permission to download was quck.
I will use Owner-Manual.com for all my manual needs.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
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3.2 OVERALL WIRING DIAGRAM
A
K SENSOR-K ASSY
(BZW1519)
J
SENSOR-J ASSY (BZW1518)
G LED-G ASSY (BZW1515)
B
By changing jumper-pin settings on the SENSOR-I, -J, and -K Assy's, you can use the SENSOR-I, -J, and -K Assy's one in place of another. Refer to "7.1.4 OPERATION CHECKS USING EXCHANGEABLE ASSY'S"
CN1
CN4
÷ When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". ÷ The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. ÷ : The power supply is shown with the marked box.
C
CN1 CN4
<BACK SIDE VIEW>
CN1
CN4
D
E
CN3
(BZW1513) (BZW1514)
LED-E LED-F ASSY
E F
CN2
F
CN6 CN5
D LED-D ASSY (BZW1512)
CN4 CN1
C LED-C ASSY (BZW1511)
By changing jumper-pin settings on the LED-B, and -C Assy's, you can use the LED-B Assy as the LED-C Assy, and vice versa. Refer to "7.1.4 OPERATION CHECKS USING EXCHANGEABLE ASSY'S"
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1 2
PDK-50HW3
3 4
CN1 CN4
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