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6-13

Pin No.

Pin Name

I/O

Function

Acti

v

e 

“L

” v

er

tical sync r

eset input pin. Pulled-up.

51

XVRST

I

Used for synchr

onizing e

xternal v

er

tical sync and inter

nal v

er

tical sync.

When XVRST is “L”, the internal digital sync generator is reset according to

the F1 state.

Field ID input pin.

W

hen e

xter

nally synchr

onizing with the XVRST signal,

 the f

ield to be reset

52

F1

I

is determined by this signal.

“H” indica

tes the f

ir

st f

ield

.

“L

” indicates the second f

ield

.

53

VDD

–

Dig

ital po

wer supply

.

T

est mode contr

ol input pin. Pulled-up.

54

XTEST4

I

When these pins are “H”, CXD1913Q is not s test mode.

T

he test mode is allo

wed to use onl

y f

or device v

endor

s.

55

XRST

I

System reset input pin when acti

v

e 

“L

”.

During po

wer on/reset, set to “L

” f

or more than 40 c

locks (SYSCLK).

56

SYSCLK

I

System clock input pin.

T

o

 generate the correct sub carrier fr

equenc

y,

 pr

ecisel

y 27 MHz is r

equired.

13.5 MHz pix

el data c

loc

k output pin.

57

PDCLK

O

T

his c

loc

k is obtained by 1/2 fr

equency-di

viding SYSCLK.

Used only in the 16-bit pix

el data mode.

58

VSS

–

Digital GND.

59

VSYNC

O

V

.sync signal output.

60

HSYNC

O

H.sync signal output.

The functions of this pin are selected by pin 64 XIICEN.

61

SO

O

When the XIICEN pin is “H”, sets into the SONY SIO mode, and becomes

the S0 serialout output pin.

When the XIICEN pin is “L”, this pin is not used and sets into high impedance.

Field ID output.

When control r

egister bit 

“FDS”=“1”, 

“L

” indicates the f

ir

st f

ield and “H”

62

FID

O

indica

tes the second f

ield

.

When control r

egister bit 

“FDS”=“0”, 

“H”

 indicates the f

ir

st f

ield and “L

”

indica

tes the second f

ield

.

63

VDD

–

Dig

ital po

wer supply

.

Serial interface mode selection input pin. Pulled-up.

64

XIICEN

O

W

hen “L

”,

 Pins 48 to 50,

 and 61 set into the I

2

C-B

US mode.

When “H”, Pins 48 to 50, and 61 set into the SONY SOP mode.

6-14E

Pin No.

Pin Name

I/O

Function

1

A

VS0

–

Digital GND for DRAM.

2

VSS0

–

GND for digital system.

3

R

VDT

I

Micr

ocomputer interf

ace da

ta input.

4

SCK

I

Micr

ocomputer interf

ace shift c

lock input.

5

XLA

T

I

Micr

ocomputer interf

ace la

tch input.

6

RED

Y

O

Micr

ocomputer interf

ace tr

ansmit permission signal output.

7

TRDT

O

Micr

ocomputer interf

ace ser

ial da

ta output. Nor

mally “H”.

8

X

WO

I

W

indo

w open input f

or synchr

oniza

tion.

9

XRST

I

System reset input terminal. “L” : reset.

10

VSS1

–

GND for digital system.

11

VDD0

–

+5V for digital system.

12

SO

O

Serial data output with one sampling f

or tw

o c

hannels.

13

XS24

I

Serial data 24 or 32 bit slot select. “L” to select 24 bit slot.

(v

alid in sla

v

e mode)

14 – 19

TST0 – 

TST5

I

T

est terminal. Normall

y f

ix

ed to 

“L

”.

20

VSS2

–

GND for digital system.

21

A

VS3

–

GND ter

minal f

or c

h-3 

A/D con

ver

ter

.

22

AIN3

I

Analo

g input terminal f

or c

h-3 

A/D con

ver

ter

. (for MIC)

23

A

VD3

–

VDD ter

minal f

or c

h-3 

A/D con

ver

ter

.

24

A

VD4

–

VDD ter

minal f

or c

h-1 D/A con

v

er

ter

.

25

A

O1P

O

CH-1 D/A con

ver

ter analo

g nor

mal phase output.

26

A

O1N

O

CH-1 D/A con

ver

ter analo

g opposite phase output.

27

A

VS4

–

GND ter

minal f

or c

h-1 D/A con

v

er

ter

.

28

A

VS1

–

GND ter

minal f

or c

h-1 

A/D con

ver

ter

.

29

AIN1

I

Analo

g input terminal f

or c

h-1 

A/D con

ver

ter

.

30

A

VD1

–

VDD ter

minal f

or c

h-1 

A/D con

ver

ter

.

31

XVDD

–

Dig

ital 

VDD f

or master c

lock.

32

XTLO

O

System clock. (33.8688 MHz)

33

XTLI

I

34

XVSS

–

Digital GND for master clock.

35

A

VS2

–

GND ter

minal f

or c

h-2 

A/D con

ver

ter

.

36

AIN2

I

Analo

g input terminal f

or c

h-2 

A/D con

ver

ter

.

37

A

VD2

–

VDD ter

minal f

or c

h-2 

A/D con

ver

ter

.

38

A

VD5

–

VDD ter

minal f

or c

h-2 D/A con

v

er

ter

.

39

A

O2N

O

CH-2 D/A con

ver

ter analo

g opposite phase output.

40

A

O2P

O

CH-2 D/A con

ver

ter analo

g nor

mal phase output.

41

A

VS5

–

GND ter

minal f

or c

h-2 D/A con

v

er

ter

.

42

VSS3

–

GND terminal for digital system.

43

VDD1

–

VDD terminal for digital system.

Pin No.

Pin Name

I/O

Function

44 – 52

NC

–

Normally open.

53

VSS4

–

GND terminal for digital system.

54 – 68

NC

–

Normally open.

69

VSS5

–

GND terminal for digital system.

70

VDD2

–

VDD terminal for digital system.

71 – 79

NC

–

Normally open.

80

VSS6

–

GND terminal for digital system.

81

X768

I

T

est input ter

minal. Normally f

ix

ed to 

“L

”.

82

BFO

T

O

Clock di

vided frequenc

y output.

83

INVI

I

T

est input ter

minal. Normall

y f

ix

ed to 

“L

”.

84, 85

NC

–

Normally open.

86

SI

I

Serial data input with one sampling f

or tw

o c

hannels.

87

BCK

I/O

Serial bit transmit clock pin for serial input/output data SI and SO.

88

LRCK

I/O

Serial bit frequenc

y c

lock pin f

or serial input/output da

ta SI and SO

.

89

XMST

I

BCK and LRCK master/sla

v

e mode select signal input. “L

” : master mode.

90

VSS7

–

GND terminal for digital system.

91 – 98

NC

–

Normally open.

99

VDD3

–

VDD terminal for digital system.

100

A

VD0

–

Dig

ital 

VDD ter

minal for DRAM.

7-1

For the procedures how to adjust and check the mechanism, as well
as how to replace mechanical parts, refer to the VHS Mechanical
Adjustment Manual   (H MECHANISM) (9-973-623-11).
However, for the procedures how to see the Track Shift mode, refer
to the following text.

See the adjusting part location diagram from on page 7-12 for
the adjustment.

The measuring instruments used for this alignment include:

[Instruments for Use]
1)

Monitor TV

2)

Oscilloscope, dual-trace, bandwidth of 30MHz or more, with
delay mode (A prove 10 : 1 should be used unless otherwise
specified.)

3)

Frequency counter (8 digits or more)

4) PAL pattern generator
5) Digital voltmeter
6) Audio level meter
7) Audio generator
8) Attenuator
9) Distortion rate meter
10) Modulation Analyzer
11) Alignment tape

Part No. : H7099052H (MH-2)

12) Reference disc (YEDS-18)

Part No. : 3-702-101-01

Unless otherwise specified, connect and adjust the measuring
instruments as shown is the following diagram.

Unless otherwise specified, place the switches and controls of this
unit in the following positions :
•

INPUT SELECT (VHS)  switch ............................................ 1

•

COLOR SYSTEM   switch ................................... PAL/AUTO

•

TAPE SPEED   switch* ...................................................... SP

* : Remote commander

Because the video signal obtained from the pattern generator is used
as the adjustment signal for the adjustment, the video output signal
is required to satisfy the specified value.

Unless otherwise specified, input PAL color bar.
Connect the oscilloscope to the picture input terminal (terminal
board). And check that the synchronizing signal amplitude of the
video signal is approximately 0.3V, the amplitude of the picture
part is approximately 0.7V, the amplitude of the burst signal is
approximately 0.3V and is flat, and the ratio of level between the
burst signal and the “red” signal is 0.33 : 0.66. The video signal
(color bar) used for the adjustment is shown in the fig. 7-2-2.

Pattern
Generator

VCR

Monitor TV

Video 
output
(75

Ω

)

LINE-1 IN
VIDEO

LINE-1 
OUT
VIDEO

White (100%)

Red

Approx.
0.7V

Approx.
0.3V

Approx.
0.3V

Burst signel (Should be flat)

Horizontal synchronizing signal

7-2

• Contents of MH-2 (Normal-VHS)

Mode

Period

Video signal

Audio signal

1

10 minutes

Stair step

7kHz

2

SP

  5 minutes

3kHz

3

10 minutes

Color bar

1kHz

4

  3 minutes

RF sweep

LINE-1/2 IN

VIDEO IN, phono jack (1 each)
Input signal: 1 Vp-p, 75 

Ω

,

unbalanced, sync negative
AUDIO IN, phono jack (2 each)
Input level: 327 mVrms
Input impedance: more than 47 k

Ω

LINE-1/2 OUT

VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 

Ω

,

unbalanced, sync negative
AUDIO OUT, phono jack (2)
Standard output: 327 mVrms
Load impedance: 47 k

Ω

Output impedance: less than 10 k

Ω

Video CD DIRECT OUT

VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 

Ω

,

unbalanced, sync negative
AUDIO OUT, phono jack (2)
Standard output: 2.0 Vrms max
Load impedance: 47 k

Ω

Output impedance: less than 600 

Ω

Perform the adjustment following the procedures given below.

On this mode, the data of the color-bars signal as a picture signal
and the 1 kHz sine wave signal as a sound signal are output by the
mechanism control microcomputer (IC301) for video CD signal
check. When measurement of the voltage and waveform on the CD-
169 board, perform it in this mode.
For reference, the color-bars signal can be observed at Video CD
DIRECT OUT (VIDEO) terminal and the sound signal can be
observed at Video CD DIRECT OUT (AUDIO) terminal using an
oscilloscope.

[Setting Method]
1)

Turn the power on.

2)

Connect the SOL303 on the CD-169 board with solder.

3)

After measuring, remove the soldering installed.

Power supply check

Servo system 

adjustment

Video System

adjustments

Audio System

adjustments

Video CD system

adjustment

White (100%)

Red

Approx.
0.7V

Approx.
0.3V

Approx.
0.3V

Burst signel (Should be flat)

Horizontal synchronizing signal