Scott R316 R316L R326 T526 T526L Service Manual
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Extracted text from Scott R316 R316L R326 T526 T526L Service Manual (Ocr-read)
Page 1
price $6.00
SERVICE MANUAL
stereo components
426 12526 IE-$20!.
O
nu S C O I I . , .where innovation is a tradition
H. H. SCOTT, INC., 111 Powder Mill Road, Maynard, Massachusetts 01754, Tel. 617 897-8801
Page 12
H
AM LW
TEST PROCEDURE
SIGNAL SIGNAL INPUT DIAL TEST
STEP ANTENNA GENERATOR GENERATOR SELECTOR SETTING INSTRU- ADJUST REMARKS
COUPLING FREQUENCY SWITCH MENTS
9. Same as Step 1 Same as Step 1 150 kHz AM 150 kHz Same as AM LW Osc. Adjust for calibration
Lw Step 1 T204
10. Same as above Same as above 350 kHz Same 350 kHz Same AM LW Osc. Adjust for calibration
Trimmer C236
11. Same as above Same as above 350 kHz Same 350 kHz Same Lw R.F. Adjust for maximum signal
Trimmers
0235, C237
12. Same as above Same as above 150 kHz Same 150 kHz Same Lw Antenna Adjust for maximum signal
slider under (soften wax, then reseal)
bracket (See
figure)
13. Repeat steps 9, 10, 11, 12 for maximum.
14. Same as Step 1 Same as Step 1 455 kHz AM Approx. Scope, 455 kHz trap Tune for Null
Lw 350 kHz probe T206
(No sta.) at IC
PIN 1
01A 720)
NOTE: AM IF is aligned at the factory using sweep generator. Do not disturb coil adjustment unless replacement coils
are installed.
Align new coil using 5 kHz generator modulation.
Adjust for maximum audio output.
Page 21
DIAL CORD STRINGING INSTRUCTIONS
RECEIVERS
1. Set tuning capacitor plates out (minimum capacitance).
2. Tie dial cord to pulley boss A".
3. Wind one turn of dial cord around tuning drum counter-clockwise,
as viewed from rear of unit.
4. Continue over pulleys B, C, "D, E, F" & "G".
5. Wind three turns of dial cord around flywheel capstan counter-
clockwise, when viewed from rear of unit.
6. Continue to tuning drum and install 1 3/4 turns of dial cord around
drum, counter-clockwise. Enter drum opening at point H and attach
cord to tension spring as shown.
7. Attach dial cord to pointer assembly, rotate dial knob to fully mesh"
tuning capacitor plates (low frequency end of dial).
8. Position pointer assembly on "0" log.
9. Rotate tuning knob in both directions to check for satisfactory dial
drive operation, adjust tension as necessary. Apply suitable cement
to dial cord knots and at dial pointer clips.
[apsran
26
7.
9.
10.
DIAL CORD STRINGING INSTRUCTIONS
T526TUNER
Set tuning capacitor plates "out" (minimum capacitance).
Tie dial cord to pulley boss "A".
Install cord around pulleys "B", "C", "D", E & "F.
Wind dial cord around flywheel capstan (G) three turns in a
counter-clockwise direction.
Continue over pulleys "H" and "J". Use care not to bend tuning
capacitor plates.
Wind two turns of dial cord around tuning drum (clockwise) and
tie to dial cord tension spring at point "K".
Turn tuning knob counter-clockwise to "mesh" tuning capacitor plates.
Set dial pointer to 0" log and attach dial cord to pointer.
Check for free operating dial drive with adequate cord tension.
Apply suitable cement to knots at each end of dial cord, and to cord
where it is clipped to the pointer assembly.
27