Sony MZ-E707 service manual Diagrams, Explanation of IC Terminals

MZ-E707

			SECTION 6
			DIAGRAMS
6-1. EXPLANATION OF IC TERMINALS
• MAIN BOARD	IC501 SN761057DBT (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No.	Pin name	I/O	Description
1	TE	O	Tracking error signal output to IC601
2	REXT	I	Connected to the external resistor for the ADIP amplifier control
3	WPPLPF	I	Connected to the external capacitor for low-pass filter of the TPP/WPP
4	VREF11	O	Reference voltage output terminal (+1.1V)
5	C	I	Signal input from the optical pick-up detector (C)
6	D	I	Signal input from the optical pick-up detector (D)
7	D-C	I	Signal input from the optical pick-up detector (D) (AC input)
8	IY	I	I-V converted RF signal IY input from the optical pick-up block detector
9	IX	I	I-V converted RF signal IX input from the optical pick-up block detector
10	JX	I	I-V converted RF signal JX input from the optical pick-up block detector
11	JY	I	I-V converted RF signal JY input from the optical pick-up block detector
12	A	I	Signal input from the optical pick-up detector (A)
13	A-C	I	Signal input from the optical pick-up detector (A) (AC input)
14	B	I	Signal input from the optical pick-up detector (B)
15	TON-C	I	Connected to the external capacitor for the TON hold
16	CIG	I	Connected to the external capacitor for low-pass filter of the NPP divider denominator
17	CDN	I	Connected to the external capacitor for low-pass filter of the CSL divider denominator
18	PD-NI	I	Light amount monitor input terminal (non-invert input)
19	PD-I	I	Light amount monitor input terminal (invert input)
20	PD-O	O	Light amount monitor output terminal
21	ADFG	O	ADIP duplex FM signal (22.05 kHz ± 1 kHz) output to IC601
22	DVDD	—	Power supply terminal (+2.4V) (digital system)
23	SBUS	I/O	Two-way SSB serial data bus with the system controller (IC601)
24	SCK	I	SSB serial clock signal input from the system controller (IC601)
25	–––––––––––	I	Reset signal input from the system controller (IC601) “L”: reset
	XRST
26	OFTRK	I	Off track signal input from IC601
27	DGND	—	Ground terminal (digital system)
28	BOTM	O	Light amount signal (RF/ABCD) bottom hold output to IC601
29	PEAK	O	Light amount signal (RF/ABCD) peak hold output to IC601
30	VREF075	—	Connected to the external capacitor for the internal reference voltage
31	VC	O	Middle point voltage (+1.2V) generation output terminal
32	CCSL2	—	Connected to the external capacitor for low-pass filter of the TPP/WPP
33	RF OUT	O	Playback EFM RF signal output to IC601
34	AGND	—	Ground terminal (analog system)
35	EQ	—	Connected to the external capacitor for the RF equalizer
36	LP	—	Connected to the external capacitor for the RF equalizer
37	PS	—	Connected to the external capacitor for the RF equalizer
38	OFC-2	—	Connected to the external capacitor for the RF AC coupling
39	OFC-1	—	Connected to the external capacitor for the RF AC coupling
40	AVCC	—	Power supply terminal (+2.4V) (analog system)
41	ABCD	O	Light amount signal (ABCD) output to IC601
42	FE	O	Focus error signal output to IC601
43	S-MON	O	Servo signal monitor output to the system controller (IC601)
44	ADIP-IN	I	ADIP duplex FM signal (22.05 kHz ± 1 kHz) input terminal Not used

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