SERVICE MODE -1/2
Automatic adjustment is repealed when starting TEST MODE. TEST MODE is operated after making it an initial-setting value. A VOL+/-key becomes invalid. It becomes invalid except the PLAY/PAUSE key at the time of an OFF display. 1. Starting Preparation and Release Method (1) Short-circuit the short land for TEST MODE starting of MAIN C.B with solder. (Fig.1 reference) (2) Supply a power supply and complete the preparation which starts TEST MODE. * In TEST MODE, detection of OPEN/CLOSE SW is disregarded and always hold a CLOSE state. (3) After TEST MODE release and TEST MODE use should surely remove the solder of a short land.
MAIN C.B
TEST MODE SHORT LAND IC301
IC401
Fig.1 MAIN C.B
2. TEST MODE Starting (1) TEST MODE starts by the PLAY/PAUSE key and shift to TOC lead operation. When DISC is put in (CD-RW is unreproducible at the time of starting) After TOC read completes, playback operation (1 time fast playback) (Fig.2 reference) * Other than TEST MODE 3 time fast playback.
0.8Vp-p
0.2V/DIV, 500
s/DIV
Fig.2 IC501 9pin RF signal (CD-DA)
* When the DISC is not inserted, (inserting the DISC, when reading is not possible) Err indication (Fig.3 reference)
Fig.3 Err indication
3. LCD all the light indications Pushes the PLAY/PAUSE key, before being time or Err indication of playback state, the PLAY MODE key it is pushed by the fact that the LCD all the light indications. (Fig.4 reference)
