Read Sony ICF-CD523 Service Manual online
12
ICF-CD523
4-3. CD TEST-2 (MANUAL) MODE
Setting the Test Mode
• Short the solder bridge of BP403 on the MAIN board (connect
IC401 tk pin and ground) and turn the power on.
Operation of Test Mode
1. Insert the CD test disc PATD-012. (Parts No. 4-225-203-01)
2. Press the u button, and the focus search will repeat until
2. Press the u button, and the focus search will repeat until
the focus is OK.
3. When the focus is OK, the rough servo function turns on.
4. Press the [BAND] button, and the spindle/tracking servo will
4. Press the [BAND] button, and the spindle/tracking servo will
turn on, and if the data are read in, the mute turns off. Press
the [BAND] button again, and the rough servo will turn on.
the [BAND] button again, and the rough servo will turn on.
5. With the rough servo or spindle/tracking servo turned on the
optical pick-up will move inward if the . button is pressed,
or outward if the > button is pressed.
or outward if the > button is pressed.
6. With the rough servo or spindle/tracking servo turned on, press
the x button and the CD will stop, and then press the u
button and the operation will repeat, starting from focus search.
button and the operation will repeat, starting from focus search.
7. With the rough servo or spindle/tracking servo turned on, press
the u button and the optical pick-up will jump to the second
music and the set will release from the CD test-2 mode.
music and the set will release from the CD test-2 mode.
Connecting Location:
BP403
– MAIN Board (Conductor Side) –
BP404
Short: CD Test-1 Mode
Open: Normal Mode
Open: Normal Mode
Short: CD Test-2 Mode
Open: Normal Mode
Open: Normal Mode
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