Sony Walkman MZ-RH1 Service Manual page 36

MZ-RH1
• IC Block Diagrams
– MAIN Board –
IC301 CXD9847K (TE4)
MODEB 1
LEVEL
BEEPIN 2
SHIFTER
LEVEL
DIN2 3
SHIFTER
LEVEL
DIN1 4
SHIFTER
BEEP
OBEEP1 5
AMP
VSS 6
HP AMP HP PRE
OUT1 7
(N-N) DRIVER
LINE/ECO LINE/ECO
AMP (P-N) PRE DRIVER
8 9 10 11
MZ-RH1
28 27 26 25 24 23 22
CONTROL LOGIC
21 TRIG
REGULATOR
20 CG
19 vG
LOW VOLTAGE
DETECTOR
LEVEL
SHIFTER
LEVEL
SHIFTER
18 CVG
BEEP
17 OBEEP2
AMP
16 VSS
HP PRE HP AMP
15 OUT2
DRIVER (N-N)
LINE/ECO LINE/ECO
PRE DRIVER AMP (P-N)
12 13 14
IC351 AK5356VN-L
21 20 19 18 17 16
MICR 22
MVDD 23
MVSS 24
MVCM 25 VCOM
MRF 26 MIC POWER
SUPPLY
MPWR 27
LIN 28
CONVERTER
VCOM
1 2 3 4 5 6
IC401 MM1690LCBE
24 23
BAT– 25
RF1 26
IAMP_CAL 27
AMP_SEL 28
I_CTL2 29
CHG_SW1 30
BAT+ 31
VO 32
SWITCHING
SWITCHING
CHARGE
CONTROL
CONTROL
RECEIVER
ON/OFF
–
+
VREF
1 2
36 36
15
RESET 14 PDN
13 CSN
CONTROL
REGISTER 12 CCLK
INTERFACE
11 CDTI
10 LRCK
9 MCLK
8
BCLK
AUDIO
A/D
INTERFACE
CONTROLLER
7
22 21 20 19 18 17
A/D
CONVERTER
+ –
+ –
+ – VREF
VREF
TIME
OSC
DIVIDER
DET
COMPARATOR
CIRCUIT
BLOCK
CHARGE CONTROL
ON/OFF
ERROR LED
CONTROL
CHARGE SWITCH WAKE-UP
CONTROL CONTROL
3 4 5 6 7
16 TYPE2
15 CFB
14 IAMP_CTL
13 A7CAL_SW
12 IN1–
11 TYPE1
10 WDT
9 LED_CTL
8