Kenwood RXD-M52-L Service Manual page 6

RXD-M52
Pin No. Pin Name
67 AMUTE
68 SPRLY
69 PWRRLY
70
71 HPRLY
72 HPDET
73 EVR CLK
74 EVR DATA
75 RDS CLK
76 BACK CHK/ DECK SLT CL
77 BACK ON/ DECK SLT OP
78 MD RST/DECK CLK
79 MD CE/DECK DATA
80 MSTOP
81 LD ON
82 SPEED
83 DC OFF
84 LOAD OUT
85 LOAD IN
86 V/H
87 DINSW
88 8SW1
89 XY SW
90 PROT
91 PROT TEMP
92 AIN LEVEL
93 BACKV
94 RDS SLEVEL
95 KRO
96 AVSS
97 KR1
98 AVREF
99 AVCC
100 12SW
Deck version only.
4. CD Test Mode
4-1 Entering the Test Mode
To enter the test mode, press the CD [PLAY/PAUSE] key
and turn the AC on.
4-2 Cancelling the Test Mode
Turn the AC off.
4-3 Keys and Operation in the Test Mode
KEYS LCD
CD CD TEST-03
PLAY/PAUSE CD TEST-05
menu/demo –
CD TEST-22 HI Hi speed (CD servo) when
sound
CD TEST-22
set
CD TEST-05
6
CIRCUIT DESCRIPTION
I/O
O Audio muting control.
O Speaker relay control.
O Power relay control.
NC - Disconnected.
O Relay control terminal for headphones.
I Detection terminal of headphones.
O Clock output to sound controller(X29,IC6).
O Data output to sound controller(X29,IC6).
I RDS clock input(E/T type only).
Detection port of back up voltage for MD mechanism. (MD version)
O
Control port of slot closing for deck. (Deck version)
Power on for MD mechanism. (MD version)
O
Control port of slot opening for deck.(Deck version)
O Reset of MD mechanism and the clock of expander IC for deck.
O CE of MD mechanism and the data of expander IC for deck.
I Detection port of loading end for CD mechanism.
O Control port of laser on.
O Play back output port of hi-speed for CD.
O Power control of system IC(X29,IC10) for CD.
O Control port of loading out for CD mechanism.
O Control port of loading in for CD mechanism.
O Control port of vertical and horizontal for CD.
I Detection port of disc in for CD.
I Detection port of 8cm disc for CD.
I Input port of sensor for vertical and horizontal. V/H version only
I Detection port of current protection.
I Detection port of temperature compensating for protection.
I Input port of audio signal.
I Input port of back up voltage for MD.
I RDS signal level input(E/T type only).
I Key return signal input.
- Connected to ground.
I Key return signal input.
- A/D,D/A reference voltage.
- A/D,D/A power supply.
I Detection port of 12cm disc for CD.
OPERATION
Tracking servo off.
All servo on.
FB operation when servo on.
Sled in when servo off.
stop mode
Normal speed (CD servo) when
stop mode.
FF operation when servo on.
Sled out when servo off.
Description
V/H version only
5. Cassette Deck Test Mode
5-1 Entering the Test Mode
5-1-1 Tape Check Mode
• Turn the AC on with pressing the TAPE[PLAY] key.
5-1-2 Mechanism Check Mode
• Turn the AC on with pressing the TAPE[PLAY] and
[menu] keys simultaneously.
5-2 Cancelling the Test Mode
Turn the AC off
5-3 Keys and Operation in the Test Mode
TEST MODE KEYS
DISPLAY
1Mecha.Test
menu/demo
Mode sound
SLEEP
(remote control) horizontal for LCD.
rec
2Tape Check
set
Mode
sound
OPERATION
Change-over the test mode
indication.
Loading Test(Load in)
Loading Test(Load out)
Change-over the vertical and
4seconds recording
Change-over the dolby on/off.
Change-over the beat cancel
on/off.