|
Who's Online
There currently are 5802 guests online.
|
Categories
|
Information
|
Featured Product
|
|
|
|
|
There are currently no product reviews.
;
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.
;
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!!!!
;
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
;
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.
;
Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
3.5.8 Sub DET [HR-S6700KR]
Signal Mode Equipment Adjustment part Specified value Adjustment tool (A) (B) (C) (F) (G) (H) � RF signal (sound carrier: S2) � Tuner � EE � Audio level meter � IC1501 pin 26 � T1501 (SUB DET) � Minimum distortion � LPF (30 kHz), HPF (400 Hz)
3.6 SYSCON CIRCUIT Note: � When perform this adjustment, remove the Mechanism assembly. 3.6.1 Timer clock
Signal Mode Equipment (A) (B) (C) � No signal � EE � Frequency counter � IC3001 pin61 � IC3001 pin24 � C3026 + and � � C3025 (TIMER CLOCK) � 1024.008 ± 0.001 Hz (976.5549 ± 0.0010 µsec)
Measuring point (D)
(1) Set the sound carrier of the RF signal generator to S2. (2) Connect the adjustment tool (H) to the measuring point (D). Then connect the equipment (C) to the adjustment tool (H). (3) Adjust the Adjustment part (F) so that the distortion level of the measuring point (D) becomes the specified value (G). 3.5.9 Pilot VCO [HR-S6700KR]
Signal Mode Equipment (A) (B) (C) � No signal � Tuner � EE � Frequency counter � IC1501 pin 11 � C1510 (+) terminal � C1510 (�) terminal � VR1502 (PILOT VCO) � 210 ± 5 Hz
Measuring point (D1) Short point (D2) (D3) Adjustment part (F) Specified value (G)
Measuring point (D1) Short point (D2) (D3) Adjustment part Specified value (F) (G)
(1) Connect the frequency counter to the measuring point (D1). (2) Connect the short wire between the short point (D2) and Vcc (5V). (3) Short the leads of capacitor (D3) once in order to reset the microprocessor of the SYSCON. (4) Disconnect the short wire between the short point (D2) and Vcc then connect it again. (5) Adjust the Adjustment part (F) so that the output frequency becomes the specified value (G).
(1) Connect the short wire between the short points (D2) and (D3). (2) Connect the equipment (C) to the measuring point (D1). (3) Adjust the Adjustment part (F) so that the frequency of the measuring point (D1) becomes the specified value (G). (4) Disconnect the short wire between the short points (D2) and (D3). 3.5.10 Separation [HR-S6700KR]
Signal Mode Equipment Adjustment part Specified value Adjustment tool (A) (B) (C) (F) (G) (H) � Sweep generator output (90 dB, 1 kHz) � EE � Oscilloscope � IC1501 pin 19 � VR1501 (SEPARATION) � Minimum level � Sweeper probe (See Fig. 3-5-10a.)
Measuring point (D)
Shorter than 8 cm
Shield
C : 1000 P R : 75� Earth
Out
Shorter than 5 cm
Fig. 3-5-10a
Sweeper probe
(1) Use the adjustment tool (H), supply 1 kHz R-only modulated IF signal to IF terminal of U/V tuner (front end). (2) Connect the equipment (C) to the measuring point (D). (3) Adjust the Adjustment part (F) so that the output level of the measuring point (D) becomes the specified value (G). 3-7
|
|
|
> |
|