Used ICs: MM1469PH
– TA2157F – TC94A29FB-005 – TA2111N – UTC1316 – BA3308
ALIGNMENT PROCEDURES
AM I.F. ALIGNMENT
1. Set the POWER BUTTON to POWER "ON".
2. Set the FUNCTION SELECTOR SWITCH to RADIO & AM BAND.
3. Connect a SWEEPSCOPE OUTPUT to AM antenna terminal.
4. Connect a SWEEPSCOPE INPUT to pin13 or 14 of IC1 through a 1uf capacitor and ground.
AM R.F. ALIGNMENT
1. Connect an RF generator to a standard radiating loop.
2. Connect a SCOPE and VTVM across the speaker output.
FM I.F. ALIGNMENT
1. Set the POWER SWITCH to POWER "ON".
2. Set the FUNCTION SELECTOR to RADIO & FM BAND.
3. Connect a SWEEPSCOPE OUTPUT to pin21 of IC1 through a 20pF capacitor and ground.
4. Connect a SWEEPSCOPE INPUT to pin13 or 14 of IC1 through a 1uf capacitor and ground.
FM R.F. ALIGNMENT
1. Connect an RF generator to the FM antenna terminal and ground.
2. Connect a SCOPE & VTVM across the speaker output.
CASSETTE ALIGNMENT
1. Set the FUNCTION SELECTOR SWITCH TO TAPE.
2. Connect a Scope & VTVM across the speaker output.
3. Insert the 8KHz tape in to cassette deck and push play BUTTON.
4. ADJUST HEAD for speaker maximum output
5. Motor speed adjustment for tape speed.
CD ALIGNMENT
Auto alignment
Exploded view
Circuit diagram
Click on the pictures to magnify
