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Great to have extra resources for Service Manuals, Now days you can really not trouble shoot efficiently without one , Wayne at IRIONS TV & ELECTRONICS REPAIR Clearwater , Fl. 33755 727-446-7955
For five bucks you can barely buy a hamburger. Or for the same five bucks you can buy a service manual. Much more useful. (and better for your health, depending on where you buy your hamburgers).
Yes, there are free manual sites out there, but if they don't have what you want, you have to pay.
And five bucks isn't much. Not for full specs, schematics and adjustment and parts replacement procedures.
My only criticism is that grayscale illustrations aren't well rendered, but I've seen worse.
Schematics and text are clear.
I'll be happy to purchase from here again.
Impressively thorough. Even the simple operators manual helped me "fix" one of the 2 CD players in the unit. This unit reads CD's from the top so they should be installed in the magazines "upside down" from typical CD players. The CD player service manual helped me unjam a stuck carriage because somebody transported the box laying down loaded with CD's. A little lens cleaning & the player now works well! Thanks for you help at a great price! Joe
I was skeptical at first but later found the manual to be good quality for the price. It took a couple hours to receive the email with the download link, well worth the wait. Thanks.
very helpful, I could not have cleaned motherboard and replaced the main fan without it
AUDIO SYSTEM ADJUSTMENTS
â¢ Adjust both Lch and Rch. [Connection]
Audio generator 600 â¦ Attenuator VCR Audio level meter or distortion meter 47 kâ¦
CH1 RF SWP
OK CH2 NG
AUDIO LINE IN Feed signal both channelssimultaneously.
AUDIO LINE OUT
Hi-Fi Audio System Adjustment (SLV-ED60/ED70/EZ60/EZ70) â¢ Set switches and knobs to the following positions to make adjustment unless otherwise specified. INPUT SELECT switch ................... LINE AUDIO MONITOR .......................... STEREO [Adjustment Sequence] 1. AF Switching Position Adjustment 2. Frequency Response Check 3. Overall Level Characteristic and Distortion Factor Check 4. Overall S/N Check 1. AF Switching Position Adjustment (MA-350 BOARD) Purpose: Adjust the interval between A CH and B CH of tape playback output. Improve the interchangeability with other tapes and sets. When it is out of order, noisy sound is increased and big noise is heard. Mode Signal Measurement point Measuring Instrument Specified Value PB Alignment tape SP mode color bar CH1: Pin 3 of CN203 CH2: Pin 1 of CN203 Oscilloscope Fig. 7-2-5 2-4-1.
2. Frequency Response Check Purpose: Confirm that the frequency characteristic is within the specification. Mode Signal REC and PB (SP, LP mode) 400 Hz, â7.5 dBs 20 Hz, â7.5 dBs 20 kHz, â7.5 dBs Audio output terminal Audio level meter 0 Â± 2 dB
Measurement point Measurement equipment Specified value
Note: Tape path adjustment must have been completed. Confirmation Method: 1) Supply a signal of 400 Hz, â7.5 dBs to both L and R channels of Audio Line Input. 2) Connect the audio level meter to the Audio Line Output. 3) Adjust the attenuator so that the audio level meter will indicate â7.5 dBs. 4) Make recording. 5) Set an audio line input signal to 20 Hz and make recording. 6) Set an audio line input signal to 20 kHz and make recording. 7) Playback a recorded portion, and measure output levels at 400 Hz and 20 Hz and 20 kHz. 8) Confirm that the 20 Hz and 20 kHz playback output level within a range of the 400 Hz playback output level 0 Â± 2 dB.
Adjusting Method: 1) Connect MA-350 board JS450 to the GND for about 1 second to activate the RF switching position adjustment mode. 2) Press the record button to activate the AF switching position adjustment mode. 3) Check appear âA Hâ on FL display. 4) Using the channels + and â buttons, minimize a chipped portion. At this time, confirm that a noisy sound is not heard. 5) Press the pause button.