Circuit Boards Location; Waveforms - Sony CDX-M9900 Service Manual

3-5. CIRCUIT BOARDS LOCATION

SWITCH board

3-6. WAVEFORMS

— Servo Board —
(MODE: CD PLAY)
1
Approx. 100mVp-p
(TEI)
IC3 wa
2
Approx. 100mVp-p
(FEI)
IC3 wd
3
Approx.
150mVp-p
(A), (C)
IC3 wh wk
4
Approx.
150mVp-p
(B), (D)
IC3 wj wl
SENSOR board
DISPLAY board
5
0V
(RFACO)
IC3 ra
6
0V
16.9344MHz
IC3 uj (XTAO)
7
18.43MHz
IC4 ia (X1)
SERVO board
MAIN board
DIGITAL board
Main Board
—
1
Approx.
0.8Vp-p
2
2Vp-p
3
1Vp-p
4
CDX-M9900/M9905X
tuner unit
(TUX201)
—
5Vp-p
4.332MHz
(OSCO)
IC201 4
2.8Vp-p
4MHz
IC503 (XOUT)
4
2Vp-p
32.768kHz
IC501 (X0A)
uk
2.2Vp-p
3.6864MHz
IC501 (X0)
i;
23