Sony MZ-E800 service manual Waveforms, IC Block Diagrams IC301 TA2131FL EL, IC501 SN761056CDBT

• Waveforms

1 IC501 1 (TE), IC601 oh (TE) (PLAYBACK mode)

200 mV/DIV, 50 ns/DIV

Approx. 30 mVp-p

2IC501 8, 9, 0, qa (IY, IX, JX, JY) (PLAYBACK mode)

100 mV/DIV, 1 µs/DIV

5 IC504 1, 2, IC551 3 (PWM1),	9 IC801 rg (XTAL)
IC601 <zxv> (SPVS),	1 V/DIV, 20 ns/DIV
IC801 yj (SPDL PWM)
(PLAYBACK mode)
2 V/DIV, 10 µs/DIV

2.3 Vp-p

59.1 ns

11.2 ∝ s

6 IC504	5, 6, IC505 1, 2, 5, 6,	0 IC904 5 (EXT)
IC551	1, 2, rk (V1, U1, W1),	1 V/DIV, 5 µs/DIV
IC601 <zxm>, <zx,>, <zx.> (SPDU, SPDV, SPDW),
IC801 wf, wg, wh (CLV U, CLV V, CLV W)

• IC Block Diagrams
IC301		TA2131FL (EL)
		PW SW		MT SW	BST SW	BEEP IN	GND	VREF IN
		18		17	16	15	14	13
2.3 Vp-p		PW		MT	BST	BEEP		V REF	12	VREF
		SW		SW	SW
									11	LPF1
MT TC	19
VCC1	20					ADD
INB
	21								10	BST NF1
								BST1
INA	22								9	LPF2
BEEP	23		PW		PW		BST2		8	BST NF2
OUTB			A		B
BEEP									7	BST OUT
	24
OUTA								BST
								AGC
		1	2	3	4		5	6

Approx. 150 mVp-p

(PLAYBACK mode)

1 V/DIV, 10 ms/DIV

11 ms

2.3 Vp-p

10 ∝ s

VCC2

OUTA

PWR GND

OUTB

DET

AGC IN

2.7 Vp-p

IC501 SN761056CDBT

ADIP

44

43

S-MON

A+B+C+D

TWpp

I+J

PK/BTM

TE

1

NPP

Aw

TON

CSLO

REXT

2

CSL

VREF075

3IC501 ed (RF OUT), IC601 uk (RFI) (PLAYBACK mode)

400 mV/DIV, 5 µs/DIV

Approx.

1.3 Vp-p

4 IC501 rs (FE), IC601 ij (FE) (PLAYBACK mode)

20 mV/DIV, 200 ns/DIV

Approx. 20 mVp-p

7 IC551 ef, eg, eh (COW0, COV0, COU0),	qa IC907 5 (EXT)
IC601 <zc/>, <zcz>, <zcx (SPCU, SPCV, SPCW)	1 V/DIV, 5 µs/DIV
(PLAYBACK mode)
1 V/DIV, 10 ms/DIV

2.3 Vp-p

10 ∝ s

12 ms

8IC601 w; (OSCO) 1 V/DIV, 20 ns/DIV

2.5 Vp-p

44.3ns

–37 –

Wpp-LPF	3		Aw+Dw	S-MONITOR	A-C
			TON Peak		D-C
VREF	4
			TON Botm		Malfa
C	5
			ADIP		Mij
D	6		TE		AwBPF
		TE	TEMP		Dw
					DwBPF
2.3 Vp-p
D-C	7					42	FE
		Tpp/Wpp				41	ABCD
						40	AVCC
						39	OFC-1
						38	OFC-2
						37	PS
					RF	36	LP
Iy	8					35	EQ
Ix	9					34	AGND
		FE				33	RFOUT
Jx	10
						32	CCSL2
Jy	11
			ABCD			31	VC
A	12					30	VREF075
A-C	13				PEAK/BOTM	29	PEAK
B	14					28	BOTM
TON-C	15
CIG	16					27	DGND
CDN	17
				T-ON		26	OFTRK
PD-I	18
PD-NI	19	APC
PD-O	20
				SERIAL		25	XRST
						24	SCK
				I/F
						23	SBUS
		ADIP
ADIP	21
DVDD	22
				– 38 –